/* ==========================================================================
   DE Fundamentals v4 — v3 content, v2 aesthetic (light · bold · editorial)
   Imports theme tokens, styles v3's class names on a light canvas.
   ========================================================================== */

/* Motion multiplier */
:root {
  --mo: 1;
  --accent: var(--theme-blue);
  --accent-soft: #E7F3FF;
  --grid-opacity: 1;
  --radius-panel: 14px;
  --font-display: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}
.reduce-motion { --mo: 0; }
.reduce-motion *, .reduce-motion *::before, .reduce-motion *::after {
  animation-duration: 0.001ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.001ms !important;
}

html, body { background: var(--bg-page); color: var(--fg-1); font-family: var(--font-body); }
* { box-sizing: border-box; }

/* ===== App shell ========================================================= */
.app { display: grid; grid-template-columns: 256px 1fr; min-height: 100vh; }
.app.reduce-motion *, .app.reduce-motion *::before { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }

/* ===== Sidebar =========================================================== */
.sb {
  position: sticky; top: 0; align-self: start; height: 100vh;
  background: #fff; border-right: 1px solid var(--theme-gray-200);
  padding: 14px 12px;
  display: flex; flex-direction: column; overflow: hidden;
}
.sb-brand { display: flex; align-items: center; gap: 10px; padding: 0 6px 12px; border-bottom: 1px solid var(--theme-gray-200); margin-bottom: 10px; flex-shrink: 0; }
.sb-mark { width: 30px; height: 30px; border-radius: 7px; background: linear-gradient(135deg, var(--theme-blue), var(--theme-cyan)); color: #fff; font-weight: 800; display: grid; place-items: center; font-size: 12px; letter-spacing: -0.04em; box-shadow: 0 6px 16px -8px rgba(45,125,255,0.5); }
.sb-brand-title { font-size: 13px; font-weight: 700; letter-spacing: -0.01em; color: var(--fg-1); line-height: 1.15; }
.sb-brand-sub { font-size: 10px; color: var(--fg-2); font-family: var(--font-mono); letter-spacing: 0.02em; line-height: 1.2; margin-top: 1px; }
.sb-eyebrow { font-family: var(--font-mono); font-size: 9.5px; font-weight: 700; letter-spacing: 0.16em; color: var(--fg-2); text-transform: uppercase; padding: 4px 8px 6px; flex-shrink: 0; }
.sb-nav { display: flex; flex-direction: column; gap: 2px; flex: 1 1 auto; min-height: 0; overflow-y: auto; }
.sb-item {
  --ch-hex: var(--theme-blue);
  position: relative; display: grid; grid-template-columns: 28px 1fr auto; align-items: center; gap: 10px;
  padding: 6px 9px; cursor: pointer; border-radius: 8px;
  transition: background 160ms ease, transform 160ms ease, color 160ms ease;
  font-size: 13px; color: var(--fg-strong); font-weight: 500;
  background: transparent;
}
.sb-item::before {
  content: "";
  position: absolute; left: -12px; top: 6px; bottom: 6px;
  width: 3px; border-radius: 0 2px 2px 0;
  background: var(--ch-hex);
  opacity: 0; transform: scaleY(0.4);
  transition: opacity 200ms ease, transform 200ms ease;
}
.sb-item:hover {
  background: color-mix(in oklab, var(--ch-hex) 7%, transparent);
  color: var(--fg-1);
}
.sb-item:hover::before { opacity: 0.55; transform: scaleY(1); }
.sb-item:hover .sb-num {
  border-color: var(--ch-hex);
  color: var(--ch-hex);
  background: color-mix(in oklab, var(--ch-hex) 10%, #fff);
}
.sb-item.active {
  background: color-mix(in oklab, var(--ch-hex) 12%, transparent);
  color: var(--fg-1);
  font-weight: 700;
}
.sb-item.active::before { opacity: 1; transform: scaleY(1); }
.sb-item.active .sb-num {
  background: var(--ch-hex);
  color: #fff;
  border-color: var(--ch-hex);
  box-shadow: 0 4px 10px -4px color-mix(in oklab, var(--ch-hex) 70%, transparent);
}
.sb-item.active .sb-title { color: var(--ch-hex); }
.sb-item.active .sb-time { color: var(--ch-hex); opacity: 0.8; }
.sb-num {
  width: 28px; height: 24px; display: grid; place-items: center;
  font-family: var(--font-mono); font-weight: 800; font-size: 10.5px;
  background: #fff; border: 1px solid var(--theme-gray-200);
  border-radius: 5px; color: var(--fg-2);
  letter-spacing: 0.04em;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease, box-shadow 200ms ease;
}
.sb-item.done .sb-num {
  background: color-mix(in oklab, var(--ch-hex) 14%, #fff);
  color: var(--ch-hex);
  border-color: color-mix(in oklab, var(--ch-hex) 30%, var(--theme-gray-200));
}
.sb-text { min-width: 0; }
.sb-title {
  font-size: 12.5px; font-weight: 600; letter-spacing: -0.005em;
  color: inherit; line-height: 1.25;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.sb-time {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--fg-2); font-weight: 500;
  letter-spacing: 0.02em; white-space: nowrap;
}

.sb-foot { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--theme-gray-200); display: flex; flex-direction: column; gap: 6px; }
.sb-toggle { display: flex; justify-content: space-between; align-items: center; padding: 8px 10px; font-size: 12px; color: var(--fg-strong); border-radius: 6px; cursor: pointer; }
.sb-toggle:hover { background: var(--bg-hover); }
.sb-toggle-lab { font-size: 12px; font-weight: 600; color: var(--fg-1); }
.sb-toggle-sub { font-size: 10px; color: var(--fg-2); font-family: var(--font-mono); letter-spacing: 0.02em; margin-top: 1px; }
.sw { width: 32px; height: 18px; background: var(--theme-gray-300); border-radius: 10px; position: relative; transition: var(--ease); flex-shrink: 0; }
.sw::after { content: ""; position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; background: #fff; border-radius: 50%; transition: var(--ease); box-shadow: 0 1px 2px rgba(0,0,0,0.2); }
.sw.on { background: var(--theme-blue); }
.sw.on::after { left: 16px; }

/* ===== Main + topbar ===================================================== */
.main { display: flex; flex-direction: column; min-width: 0; }
.tb {
  position: sticky; top: 0; z-index: 20; height: 52px;
  background: rgba(255,255,255,0.88); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--theme-gray-200);
  display: flex; align-items: center; gap: 16px; padding: 0 28px;
}
.crumb { font-family: var(--font-mono); font-size: 11.5px; color: var(--fg-2); letter-spacing: 0.01em; flex: 1; }
.crumb .sep { margin: 0 6px; color: var(--fg-3); }
.crumb b { color: var(--fg-1); font-weight: 700; }
.crumb .here { color: var(--fg-1); font-weight: 700; }
.tb-right { display: flex; gap: 6px; align-items: center; }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; font: inherit; font-size: 12px; font-weight: 600;
  background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 6px;
  cursor: pointer; color: var(--fg-strong); transition: var(--ease);
}
.btn:hover:not(:disabled) { background: var(--bg-hover); color: var(--fg-1); border-color: var(--theme-gray-300); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn.btn-primary { background: var(--theme-blue); color: #fff; border-color: var(--theme-blue); }
.btn.btn-primary:hover:not(:disabled) { background: var(--theme-blue-hover); border-color: var(--theme-blue-hover); color: #fff; }
.kbd { font-family: var(--font-mono); font-size: 10px; font-weight: 700; background: rgba(0,0,0,0.06); border: 1px solid rgba(0,0,0,0.08); border-bottom-width: 2px; border-radius: 4px; padding: 0 5px; margin-left: 4px; color: var(--fg-2); }
.btn.btn-primary .kbd { background: rgba(255,255,255,0.18); border-color: rgba(255,255,255,0.25); color: rgba(255,255,255,0.85); }

.content { max-width: 1280px; margin: 0 auto; padding: 40px 64px 80px; width: 100%; }
[data-density="compact"] .content { padding: 28px 52px 64px; }

/* ===== Hero (chapter header, v3 markup: .hero .hero-eyebrow .hero-title .hero-hook .hero-meta) ===== */
.hero { padding: 8px 0 28px; border-bottom: 2px solid var(--theme-gray-200); margin-bottom: 32px; position: relative; }
.hero::after { content: ""; position: absolute; bottom: -2px; left: 0; width: 96px; height: 6px; background: var(--theme-blue); }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 11px; font-weight: 700; color: var(--theme-blue); letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 12px; }
.hero-eyebrow::before { content: ""; width: 20px; height: 2px; background: var(--theme-blue); }
.hero-title { font-family: var(--font-display); font-size: 52px; font-weight: 800; letter-spacing: -0.035em; line-height: 1.02; margin: 0 0 14px; max-width: 980px; color: var(--fg-1); }
.hero-title .accent { color: var(--theme-blue); }
.hero-hook { font-size: 17px; line-height: 1.6; color: var(--fg-strong); max-width: 740px; margin: 0 0 16px; }
.hero-hook strong { color: var(--fg-1); font-weight: 700; }
.hero-hook em { font-style: italic; color: var(--fg-strong); }
.hero-meta { display: grid; grid-template-columns: repeat(3, auto); gap: 28px; margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--theme-gray-200); }
.hero-meta .m .k { font-family: var(--font-mono); font-size: 10px; color: var(--fg-2); letter-spacing: 0.14em; text-transform: uppercase; font-weight: 700; }
.hero-meta .m .v { font-size: 13.5px; color: var(--fg-1); margin-top: 6px; font-weight: 500; display: flex; gap: 6px; flex-wrap: wrap; }
.hero-meta .m .v .chip { display: inline-block; font-family: var(--font-mono); font-size: 10.5px; font-weight: 600; padding: 3px 8px; border-radius: 4px; background: var(--theme-gray-100); color: var(--fg-1); letter-spacing: 0.02em; }

/* ===== Section primitives ================================================ */
.section { margin-bottom: 52px; }
.section-label { font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: 0.18em; color: var(--fg-2); text-transform: uppercase; display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.section-label .n { font-weight: 800; color: var(--theme-blue); min-width: 32px; }
.section-label::before { content: ""; width: 6px; height: 6px; background: var(--theme-blue); border-radius: 50%; }
.section-label::after { content: ""; flex: 1; height: 1px; background: linear-gradient(to right, var(--theme-gray-200), transparent); }
.h2 { font-family: var(--font-display); font-size: 30px; font-weight: 700; letter-spacing: -0.025em; margin: 0 0 14px; color: var(--fg-1); }
.prose { font-size: 15px; line-height: 1.7; color: var(--fg-strong); max-width: 740px; margin: 0 0 12px; }
.prose + .prose { margin-top: 10px; }
.prose strong, .prose b { color: var(--fg-1); font-weight: 600; }
.prose em { color: var(--fg-strong); font-style: italic; }
.prose code, code { font-family: var(--font-mono); font-size: 12.5px; background: var(--theme-gray-100); color: var(--fg-1); padding: 1px 6px; border-radius: 4px; }

/* ===== Callouts (v3 .callout / .callout.mint) ============================ */
.callout { background: #FFFBF2; border: 1px solid #F7B928; border-left: 4px solid #F7B928; border-radius: 10px; padding: 18px 22px; margin: 14px 0 0; }
.callout-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; font-family: var(--font-mono); font-size: 11px; font-weight: 800; color: #8B5C00; letter-spacing: 0.12em; text-transform: uppercase; }
.callout-head::before { content: "⚠"; font-size: 15px; }
.callout-list { display: flex; flex-direction: column; gap: 10px; }
.callout-item { padding-left: 32px; position: relative; font-size: 13.5px; line-height: 1.55; color: #3D2D00; }
.callout-item .n { position: absolute; left: 0; top: 1px; font-family: var(--font-mono); font-weight: 800; font-size: 10px; color: #3D2D00; background: #F7B928; width: 22px; height: 18px; border-radius: 4px; display: grid; place-items: center; letter-spacing: 0.04em; }
.callout-item strong, .callout-item b { color: #1C0F00; font-weight: 700; }
.callout-item code { background: rgba(247,185,40,0.3); padding: 1px 5px; border-radius: 3px; font-size: 12px; }

.callout.mint { background: #F4FBF5; border-color: var(--theme-green); border-left-color: var(--theme-green); }
.callout.mint .callout-head { color: #08421E; }
.callout.mint .callout-head::before { content: "✓"; }
.callout.mint .callout-item { color: #08421E; }
.callout.mint .callout-item .n { background: var(--theme-green); color: #fff; }
.callout.mint .callout-item strong { color: #002A0B; }
.callout.mint .callout-item code { background: rgba(49,162,76,0.18); }

/* ===== Takeaway (v3 markup) — dark poster block like v2 ================== */
.takeaway { background: #0A1220; color: #E8EAED; border-radius: 12px; padding: 24px 28px; margin-top: 20px; }
.takeaway-head { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.18em; font-weight: 800; color: #7FB5FF; margin-bottom: 14px; text-transform: uppercase; }
.takeaway-list { display: flex; flex-direction: column; gap: 8px; }
.takeaway-item { font-family: var(--font-mono); font-size: 13px; line-height: 1.65; padding-left: 22px; position: relative; }
.takeaway-item::before { content: "→"; position: absolute; left: 0; color: var(--theme-blue); font-weight: 800; }
.takeaway-item b { color: #fff; font-weight: 700; }
.takeaway-item code { background: rgba(255,255,255,0.08); color: #B8D4FF; border: 1px solid rgba(255,255,255,0.08); padding: 1px 5px; border-radius: 3px; font-size: 12px; }

/* ===== Panel (v3 Panel wrapper) → v2 .pg aesthetic ======================= */
.panel {
  background: #fff; border-radius: var(--radius-panel);
  box-shadow: 0 1px 2px rgba(0,0,0,0.04), 0 12px 40px -20px rgba(8,14,28,0.18);
  overflow: hidden; border: 1px solid var(--theme-gray-200); position: relative;
}
.panel::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(to right, var(--theme-blue), var(--theme-cyan) 45%, var(--theme-yellow) 75%, var(--theme-red)); }
.panel-head { padding: 20px 24px 8px; display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.panel-title { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; letter-spacing: -0.02em; color: var(--fg-1); flex-wrap: wrap; }
.panel-title .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--theme-red); box-shadow: 0 0 0 3px rgba(228,30,63,0.15); animation: live-p 1.4s ease-in-out infinite; flex-shrink: 0; }
@keyframes live-p { 50% { box-shadow: 0 0 0 6px rgba(228,30,63,0.04); } }
.panel-title .lab { font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: 0.14em; color: var(--fg-2); text-transform: uppercase; background: var(--theme-gray-100); padding: 3px 8px; border-radius: 4px; }
.panel-meta { font-family: var(--font-mono); font-size: 11px; color: var(--fg-2); background: var(--theme-gray-100); padding: 4px 9px; border-radius: 4px; letter-spacing: 0.02em; white-space: nowrap; }
.panel-body { padding: 12px 24px 24px; }
.panel-caption { padding: 14px 24px; background: var(--theme-gray-50); border-top: 1px solid var(--theme-gray-200); font-family: var(--font-mono); font-size: 11px; color: var(--fg-2); letter-spacing: 0.02em; line-height: 1.55; }

/* ===== Ch0 · Scanner ===================================================== */
.sc-query { background: #0A1220; color: #E8EAED; border-radius: 10px; padding: 14px 18px; margin-bottom: 20px; font-family: var(--font-mono); font-size: 13.5px; border: 1px solid rgba(255,255,255,0.06); }
.sc-q-ln { letter-spacing: 0; }
.sc-q-hint { color: rgba(255,255,255,0.55); font-size: 11.5px; margin-top: 6px; }
.sc-col47 { background: rgba(127,181,255,0.2); color: #93C5FD; padding: 1px 6px; border-radius: 4px; border: 1px solid rgba(127,181,255,0.3); }
.tok-k { color: #FF7AB6; }
.tok-s { color: #7FE084; }
.tok-n { color: #FFC65C; }
.tok-c { color: #5A6E8F; font-style: italic; }
.tok-f { color: #4AD9E0; }
.tok-t { color: #C9A3FF; }

.sc-disk { display: grid; grid-template-columns: 80px 1fr; gap: 10px; margin-bottom: 18px; }
.sc-axis-left { display: flex; flex-direction: column; justify-content: space-between; padding: 28px 0 24px; font-family: var(--font-mono); font-size: 10px; color: var(--fg-2); letter-spacing: 0.06em; text-align: right; font-weight: 600; }
.sc-grid-wrap { background: var(--theme-gray-50); border: 1px solid var(--theme-gray-200); border-radius: 10px; padding: 14px; }
.sc-grid-head { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-2); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 10px; font-weight: 700; }
.sc-grid-head code { background: transparent; border: none; padding: 0; text-transform: none; letter-spacing: 0; }

.sc-grid { display: grid; gap: 1px; background: var(--theme-gray-200); padding: 2px; border-radius: 6px; aspect-ratio: 5/2; }
.sc-c { background: #fff; border-radius: 1px; transition: background 80ms linear, box-shadow 120ms linear, transform 160ms ease; position: relative; }
.sc-c.target { background: #E7F3FF; }
.sc-c.dark { background: #F5F6F8; }
/* Row mode sweep — amber */
.sc-c.head { background: var(--theme-yellow); box-shadow: 0 0 10px rgba(247,185,40,0.7), inset 0 0 0 1px rgba(255,255,255,0.6); z-index: 2; }
.sc-c.read { background: #F9D98A; }
/* Columnar mode — blue stripe */
.sc-disk.col .sc-c.target { background: #D6E9FF; }
.sc-disk.col .sc-c.target.read { background: var(--theme-blue); box-shadow: 0 0 8px rgba(8,102,255,0.55); }
.sc-disk.col .sc-c.target.head { background: #3D8BFF; box-shadow: 0 0 14px var(--theme-blue); }
.sc-disk.col .sc-c.snappy { transform: scaleY(0.35); }

.sc-prog { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px; margin-top: 14px; }
.sc-prog-lab { font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-2); letter-spacing: 0.06em; text-transform: uppercase; font-weight: 700; }
.sc-prog-bar { height: 5px; background: var(--theme-gray-200); border-radius: 3px; overflow: hidden; }
.sc-prog-fill { height: 100%; background: var(--theme-blue); border-radius: 3px; transition: width 80ms linear; box-shadow: 0 0 10px rgba(8,102,255,0.3); }
.sc-prog-val { font-family: var(--font-mono); font-size: 12px; color: var(--fg-1); font-weight: 700; min-width: 36px; text-align: right; font-variant-numeric: tabular-nums; }

.sc-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 18px 0; }
.sc-stat { background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 10px; padding: 14px 16px; }
.sc-stat.warn { background: #FFFBF2; border-color: #F7B928; }
.sc-stat.good { background: #F4FBF5; border-color: var(--theme-green); }
.sc-stat-k { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2); font-weight: 700; }
.sc-stat-v { font-family: var(--font-mono); font-size: 28px; font-weight: 800; color: var(--fg-1); letter-spacing: -0.025em; margin-top: 8px; line-height: 1; font-variant-numeric: tabular-nums; }
.sc-stat-v .u { color: var(--fg-2); font-size: 13px; font-weight: 600; letter-spacing: 0; margin-left: 3px; }
.sc-stat.warn .sc-stat-v { color: #8B5C00; }
.sc-stat.good .sc-stat-v { color: var(--theme-green); }
.sc-stat-s { font-family: var(--font-mono); font-size: 10px; color: var(--fg-2); margin-top: 6px; letter-spacing: 0.02em; line-height: 1.4; }

.sc-ctrls { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; padding-top: 18px; border-top: 1px solid var(--theme-gray-200); }
.sc-tabs { display: flex; border: 1.5px solid var(--theme-gray-200); border-radius: 8px; overflow: hidden; }
.sc-tab { background: #fff; border: none; padding: 10px 16px; font: inherit; font-size: 12px; color: var(--fg-strong); cursor: pointer; text-align: left; line-height: 1.2; border-right: 1.5px solid var(--theme-gray-200); font-weight: 600; letter-spacing: -0.005em; transition: var(--ease); }
.sc-tab:last-child { border-right: none; }
.sc-tab:hover { color: var(--fg-1); background: var(--bg-hover); }
.sc-tab.on { background: var(--fg-1); color: #fff; }
.sc-tab-sub { display: block; font-family: var(--font-mono); font-size: 10px; color: var(--fg-2); letter-spacing: 0.02em; margin-top: 3px; font-weight: 500; text-transform: none; }
.sc-tab.on .sc-tab-sub { color: rgba(255,255,255,0.65); }

.sc-check { display: flex; flex-direction: column; gap: 2px; cursor: pointer; padding: 8px 12px; border-radius: 8px; border: 1.5px solid var(--theme-gray-200); background: #fff; flex: 1; min-width: 200px; max-width: 260px; transition: var(--ease); }
.sc-check:hover:not(.dis) { border-color: var(--theme-gray-300); }
.sc-check.dis { opacity: 0.4; cursor: not-allowed; }
.sc-check input { margin-right: 8px; accent-color: var(--theme-blue); vertical-align: middle; }
.sc-check-lab { font-size: 12px; color: var(--fg-1); font-weight: 600; }
.sc-check-sub { font-family: var(--font-mono); font-size: 10px; color: var(--fg-2); margin-left: 22px; letter-spacing: 0.02em; }
.sc-actions { margin-left: auto; display: flex; gap: 8px; }

/* ===== Format spectrum ================================================== */
.fmt-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 24px 0; }
.fmt-card { background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 12px; padding: 22px 22px 20px; position: relative; overflow: hidden; transition: var(--ease); }
.fmt-card:hover { transform: translateY(-2px); box-shadow: 0 14px 36px -18px rgba(8,14,28,0.2); }
.fmt-card::before { content: ''; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--theme-gray-200); }
.fmt-card.k-row::before { background: var(--theme-red); }
.fmt-card.k-col::before { background: var(--theme-blue); }
.fmt-card.k-tbl::before { background: var(--theme-green); }
.fmt-n { font-family: var(--font-mono); font-size: 11px; color: var(--fg-2); letter-spacing: 0.14em; font-weight: 700; }
.fmt-name { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; margin-top: 6px; color: var(--fg-1); }
.fmt-tag { font-size: 13.5px; color: var(--fg-strong); line-height: 1.55; margin-top: 10px; }
.fmt-traits { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--theme-gray-200); }
.fmt-chip { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.04em; background: var(--theme-gray-100); border: 1px solid var(--theme-gray-200); padding: 3px 7px; border-radius: 4px; color: var(--fg-strong); font-weight: 600; }

/* ===== Lakehouse diagram ================================================ */
.lh-diagram { display: grid; grid-template-columns: 1fr 72px 1fr; gap: 18px; align-items: stretch; margin: 24px 0; }
.lh-side { background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 14px; padding: 22px 24px; display: flex; flex-direction: column; gap: 14px; }
.lh-side.legacy { border-color: rgba(228,30,63,0.25); background: #FEF5F7; }
.lh-side.modern { border-color: rgba(8,102,255,0.22); background: #F3F8FF; }
.lh-badge { display: inline-flex; align-self: flex-start; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--theme-red); padding: 4px 9px; border-radius: 4px; background: rgba(228,30,63,0.08); border: 1px solid rgba(228,30,63,0.25); font-weight: 700; }
.lh-badge.mint { color: var(--theme-green); background: rgba(49,162,76,0.08); border-color: rgba(49,162,76,0.25); }
.lh-stack { display: flex; flex-direction: column; gap: 10px; flex: 1; }
.lh-box { background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 10px; padding: 14px 16px; }
.lh-box.tight { padding: 20px; font-family: var(--font-mono); font-size: 13px; color: var(--fg-1); font-weight: 600; letter-spacing: -0.01em; }
.lh-k { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2); font-weight: 700; }
.lh-v { font-family: var(--font-mono); font-size: 13px; color: var(--fg-1); margin-top: 4px; font-weight: 600; }
.lh-note { font-size: 13px; color: var(--fg-strong); line-height: 1.55; margin-top: auto; padding-top: 8px; }
.lh-k-arrow { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2); text-align: center; padding: 4px 0; font-weight: 700; }
.lh-arrow { display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-2); letter-spacing: 0.14em; writing-mode: vertical-rl; transform: rotate(180deg); padding: 20px 4px; background: #fff; border: 1px dashed var(--theme-gray-300); border-radius: 10px; font-weight: 700; text-transform: uppercase; }

/* ===== Engine cards ===================================================== */
.eng-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 22px 0; }
.eng-card { background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 12px; padding: 22px; display: flex; flex-direction: column; gap: 6px; transition: var(--ease); }
.eng-card:hover { transform: translateY(-2px); box-shadow: 0 14px 36px -18px rgba(8,14,28,0.18); border-color: var(--theme-blue); }
.eng-icon { color: var(--theme-blue); margin-bottom: 8px; }
.eng-n { font-size: 17px; font-weight: 700; letter-spacing: -0.02em; color: var(--fg-1); }
.eng-kind { font-family: var(--font-mono); font-size: 11px; color: var(--fg-2); letter-spacing: 0.04em; text-transform: uppercase; font-weight: 700; margin-bottom: 10px; }
.eng-row { display: grid; grid-template-columns: 54px 1fr; gap: 10px; font-size: 12.5px; line-height: 1.55; margin-top: 6px; color: var(--fg-strong); }
.eng-k { font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 700; padding-top: 2px; }
.eng-k.mint { color: var(--theme-green); }
.eng-k.amber { color: #8B5C00; }
.eng-v { color: var(--fg-strong); }

/* ===== Tweaks floating panel (borrowed from v3) ========================= */
.tweaks-panel { position: fixed; right: 20px; bottom: 20px; width: 280px; background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 14px; box-shadow: 0 24px 60px -20px rgba(8,14,28,0.25); z-index: 40; overflow: hidden; }
.tweaks-head { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--theme-gray-200); background: var(--theme-gray-50); }
.tweaks-title { font-size: 13px; font-weight: 700; letter-spacing: -0.01em; color: var(--fg-1); }
.tweaks-body { padding: 14px 16px; display: flex; flex-direction: column; gap: 14px; }
.tw-group .tw-lab { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-2); font-weight: 700; margin-bottom: 6px; }
.tw-swatch { display: flex; gap: 6px; }
.tw-chip { width: 28px; height: 28px; border-radius: 50%; cursor: pointer; border: 2px solid transparent; transition: var(--ease); }
.tw-chip.on { border-color: var(--fg-1); transform: scale(1.1); }
.tw-opts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.tw-opt { padding: 6px 8px; font-size: 11px; font-weight: 600; text-align: center; background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 6px; cursor: pointer; transition: var(--ease); color: var(--fg-strong); }
.tw-opt:hover { background: var(--bg-hover); }
.tw-opt.on { background: var(--fg-1); color: #fff; border-color: var(--fg-1); }
.tw-slider { width: 100%; accent-color: var(--theme-blue); }

/* ===== Shared sim primitives (readouts, pills, sliders, code blocks) ==== */
.readout-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 18px; }
.readout { background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 10px; padding: 14px 16px; transition: var(--ease); }
.readout .r-k { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2); font-weight: 700; }
.readout .r-v { font-family: var(--font-mono); font-size: 26px; font-weight: 800; color: var(--fg-1); letter-spacing: -0.02em; margin-top: 8px; line-height: 1; font-variant-numeric: tabular-nums; }
.readout .r-v small { font-size: 12px; font-weight: 600; color: var(--fg-2); margin-left: 3px; letter-spacing: 0; }
.readout .r-s { font-family: var(--font-mono); font-size: 10px; color: var(--fg-2); margin-top: 6px; letter-spacing: 0.02em; }
.readout.ok { background: #F4FBF5; border-color: var(--theme-green); }
.readout.ok .r-v { color: var(--theme-green); }
.readout.warn { background: #FFFBF2; border-color: #F7B928; }
.readout.warn .r-v { color: #8B5C00; }
.readout.danger { background: #FEF5F7; border-color: var(--theme-red); }
.readout.danger .r-v { color: var(--theme-red); }
.readout.blue { background: #F3F8FF; border-color: var(--theme-blue); }
.readout.blue .r-v { color: var(--theme-blue); }

.ctl-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; padding-top: 18px; border-top: 1px solid var(--theme-gray-200); margin-top: 22px; }
.ctl-slider { display: flex; flex-direction: column; gap: 6px; flex: 1; min-width: 180px; }
.ctl-slider .row { display: flex; justify-content: space-between; align-items: baseline; }
.ctl-slider .lab { font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: 0.12em; color: var(--fg-2); text-transform: uppercase; }
.ctl-slider .val { font-family: var(--font-mono); font-size: 12px; font-weight: 800; color: var(--fg-1); font-variant-numeric: tabular-nums; }
.ctl-slider input[type=range] { width: 100%; accent-color: var(--theme-blue); }
.ctl-slider .hint { font-family: var(--font-mono); font-size: 10px; color: var(--fg-2); letter-spacing: 0.02em; }
.ctl-slider.warn input[type=range] { accent-color: #F7B928; }

.pill-row { display: flex; gap: 0; border: 1.5px solid var(--theme-gray-200); border-radius: 8px; overflow: hidden; }
.pill { background: #fff; border: none; border-right: 1.5px solid var(--theme-gray-200); padding: 8px 14px; font: inherit; font-size: 12px; font-weight: 600; color: var(--fg-strong); cursor: pointer; transition: var(--ease); letter-spacing: -0.005em; }
.pill:last-child { border-right: none; }
.pill:hover { background: var(--bg-hover); color: var(--fg-1); }
.pill.on { background: var(--fg-1); color: #fff; }
.pill-row .pill .ps { display: block; font-family: var(--font-mono); font-size: 9.5px; font-weight: 500; letter-spacing: 0.02em; margin-top: 3px; opacity: 0.72; text-transform: none; }

.ctl-group { display: flex; flex-direction: column; gap: 6px; }
.ctl-lab { font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: 0.12em; color: var(--fg-2); text-transform: uppercase; }

/* Code block (in-content) */
.code { background: #0A1220; border: 1px solid rgba(255,255,255,0.06); border-radius: 10px; overflow: hidden; margin: 16px 0; }
.code-head { display: flex; justify-content: space-between; align-items: center; padding: 10px 16px; background: rgba(255,255,255,0.04); font-family: var(--font-mono); font-size: 10.5px; color: rgba(255,255,255,0.55); letter-spacing: 0.1em; text-transform: uppercase; font-weight: 700; border-bottom: 1px solid rgba(255,255,255,0.06); }
.code-head .lang { color: #7FB5FF; }
.code-body { padding: 16px 18px; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.7; color: #E8EAED; white-space: pre-wrap; overflow-x: auto; }

/* Cards-3 grid for concept tiles */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 18px; }
.cards-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 18px; }
.ccard { background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 12px; padding: 22px; transition: var(--ease); }
.ccard:hover { transform: translateY(-2px); box-shadow: 0 14px 36px -18px rgba(8,14,28,0.18); border-color: var(--theme-blue); }
.ccard-t { font-size: 11px; font-family: var(--font-mono); font-weight: 800; letter-spacing: 0.14em; color: var(--theme-blue); text-transform: uppercase; margin-bottom: 4px; }
.ccard-n { font-size: 17px; font-weight: 700; letter-spacing: -0.02em; color: var(--fg-1); margin-bottom: 10px; }
.ccard-d { font-size: 13.5px; line-height: 1.55; color: var(--fg-strong); }
.ccard-d code { background: var(--theme-gray-100); }

/* ===== Ch1 · Watermark / Streaming Watermark ====================================== */
.wm-stage { background: linear-gradient(180deg, #F9FBFF 0%, #F3F6FA 100%); border: 1px solid var(--theme-gray-200); border-radius: 10px; position: relative; height: 360px; overflow: hidden; }
.wm-svg { width: 100%; height: 100%; display: block; }
.wm-dot-ontime { fill: var(--theme-green); }
.wm-dot-late { fill: #F7B928; }
.wm-tick { font-family: var(--font-mono); font-size: 10px; fill: var(--fg-2); letter-spacing: 0.02em; }
.wm-axis-label { font-family: var(--font-mono); font-size: 11px; fill: var(--fg-2); letter-spacing: 0.08em; text-transform: uppercase; font-weight: 700; }

/* ===== Ch2 · Cumulative table ============================================ */
.cm-days { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; margin-bottom: 18px; }
.cm-day { background: #fff; border: 1.5px solid var(--theme-gray-200); border-radius: 8px; padding: 10px 12px; cursor: pointer; transition: var(--ease); text-align: left; }
.cm-day:hover { border-color: var(--theme-gray-300); }
.cm-day.active { border-color: var(--theme-blue); background: #F3F8FF; box-shadow: 0 0 0 3px rgba(8,102,255,0.12); }
.cm-day.bug { border-color: #F7B928; background: #FFFBF2; }
.cm-day.bug.active { border-color: #F7B928; box-shadow: 0 0 0 3px rgba(247,185,40,0.2); }
.cm-day.backfill { animation: bf-pulse 0.8s ease; }
@keyframes bf-pulse { 0% { background: #F4FBF5; } 50% { background: #D4F1DC; } 100% { background: #F3F8FF; } }
.cm-day .num { font-family: var(--font-mono); font-size: 10.5px; font-weight: 800; letter-spacing: 0.12em; color: var(--fg-2); }
.cm-day.active .num { color: var(--theme-blue); }
.cm-day.bug .num { color: #8B5C00; }
.cm-day .date { font-family: var(--font-mono); font-size: 11px; color: var(--fg-1); margin-top: 4px; font-weight: 600; }
.cm-day .rc { font-family: var(--font-mono); font-size: 10px; color: var(--fg-2); margin-top: 2px; letter-spacing: 0.02em; }

.cm-stage { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 10px; align-items: stretch; margin-top: 16px; }
.cm-table { background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 8px; overflow: hidden; display: flex; flex-direction: column; min-width: 0; }
.cm-thead { display: flex; justify-content: space-between; padding: 10px 12px; background: var(--theme-gray-50); border-bottom: 1px solid var(--theme-gray-200); font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; letter-spacing: 0.06em; color: var(--fg-2); text-transform: uppercase; }
.cm-thead.green { background: #E3F4E6; color: #08421E; border-bottom-color: var(--theme-green); }
.cm-thead.yellow { background: #FFF7E0; color: #8B5C00; border-bottom-color: #F7B928; }
.cm-thead.blue { background: #E7F3FF; color: var(--theme-blue); border-bottom-color: var(--theme-blue); }
.cm-tbody { padding: 6px; flex: 1; max-height: 240px; overflow-y: auto; }
.cm-row { display: grid; grid-template-columns: 48px 1fr auto; gap: 8px; align-items: center; padding: 6px 8px; font-family: var(--font-mono); font-size: 11.5px; border-radius: 4px; transition: var(--ease); }
.cm-row.new { background: #E3F4E6; animation: cm-new 0.5s ease; }
.cm-row.upd { background: #E7F3FF; }
@keyframes cm-new { from { opacity: 0; transform: translateX(-8px); } to { opacity: 1; transform: none; } }
.cm-key { color: var(--fg-2); font-weight: 600; }
.cm-val { color: var(--fg-1); font-weight: 700; font-variant-numeric: tabular-nums; }
.cm-tag { font-family: var(--font-mono); font-size: 9px; font-weight: 800; letter-spacing: 0.08em; padding: 2px 5px; border-radius: 3px; }
.cm-tag.new { background: var(--theme-green); color: #fff; }
.cm-tag.upd { background: var(--theme-blue); color: #fff; }
.cm-join { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 4px; padding: 0 4px; }
.cm-join .ar { font-size: 18px; color: var(--theme-blue); font-weight: 800; }
.cm-join span { font-family: var(--font-mono); font-size: 9px; font-weight: 700; letter-spacing: 0.08em; color: var(--fg-2); text-transform: uppercase; }

/* ===== Ch3 · Compute (shuffle / join planner) ============================ */
.qp-stage { background: linear-gradient(180deg, #F9FBFF 0%, #F3F6FA 100%); border: 1px solid var(--theme-gray-200); border-radius: 10px; padding: 12px; }
.qp-svg { width: 100%; display: block; aspect-ratio: 2/1; max-height: 500px; }
.qp-lab-big { font-family: var(--font-mono); font-size: 13px; fill: var(--fg-1); font-weight: 700; }
.qp-lab-small { font-family: var(--font-mono); font-size: 10.5px; fill: var(--fg-2); letter-spacing: 0.02em; }
.qp-overload rect:first-child { animation: qp-shake 0.4s infinite; }
@keyframes qp-shake { 0%,100% { transform: translateX(0); } 25% { transform: translateX(-1px); } 75% { transform: translateX(1px); } }

/* ===== Ch4 · Backfill / idempotency ===================================== */
.bf-parts { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.bf-part { background: #fff; border: 1.5px solid var(--theme-gray-200); border-radius: 8px; padding: 12px; text-align: center; position: relative; overflow: hidden; transition: var(--ease); min-height: 110px; display: flex; flex-direction: column; justify-content: center; }
.bf-part.ok { border-color: var(--theme-green); background: #F4FBF5; }
.bf-part.bug { border-color: #F7B928; background: #FFFBF2; border-style: dashed; }
.bf-part.writing { border-color: var(--theme-blue); background: linear-gradient(to top, var(--theme-blue-50) var(--fill, 0%), #fff var(--fill, 0%)); box-shadow: 0 0 0 3px rgba(8,102,255,0.15); }
.bf-part.failed { border-color: var(--theme-red); background: #FEF5F7; animation: bf-shake 0.2s 3; }
@keyframes bf-shake { 0%,100% { transform: translateX(0); } 25% { transform: translateX(-3px); } 75% { transform: translateX(3px); } }
.bf-part.success { border-color: var(--theme-green); background: #F4FBF5; }
.bf-part.doubled { border-color: var(--theme-red); background: #FEF5F7; animation: bf-pulse-err 0.8s; }
@keyframes bf-pulse-err { 0% { box-shadow: 0 0 0 0 rgba(228,30,63,0.4); } 100% { box-shadow: 0 0 0 14px rgba(228,30,63,0); } }
.bf-part .date { font-family: var(--font-mono); font-size: 10px; color: var(--fg-2); letter-spacing: 0.04em; font-weight: 700; }
.bf-part .rows { font-family: var(--font-mono); font-size: 20px; font-weight: 800; color: var(--fg-1); margin-top: 6px; letter-spacing: -0.015em; font-variant-numeric: tabular-nums; }
.bf-part .sub { font-family: var(--font-mono); font-size: 10px; color: var(--fg-2); margin-top: 4px; letter-spacing: 0.02em; }
.bf-part.ok .sub { color: var(--theme-green); }
.bf-part.bug .rows { color: #F7B928; }
.bf-part.bug .sub { color: #8B5C00; font-weight: 700; }
.bf-part.failed .rows { color: var(--theme-red); }
.bf-part.failed .sub { color: var(--theme-red); font-weight: 700; }
.bf-part.doubled .rows { color: var(--theme-red); }
.bf-part.doubled .sub { color: var(--theme-red); font-weight: 700; }
.bf-part.success .sub { color: var(--theme-green); font-weight: 700; }
.bf-spark { position: absolute; width: 4px; height: 4px; background: var(--theme-red); border-radius: 50%; animation: bf-spark 0.6s ease-out forwards; pointer-events: none; }
@keyframes bf-spark { to { transform: translate(var(--dx), var(--dy)); opacity: 0; } }

/* scheduler log */
.sched-log { background: #0A1220; border-radius: 8px; padding: 12px 14px; font-family: var(--font-mono); font-size: 11.5px; line-height: 1.7; color: #CED0D4; min-height: 150px; }
.sched-log .t { color: #5A6E8F; }
.sched-log .err { color: #FF7AB6; }
.sched-log .ok { color: #7FE084; }
.sched-log .info { color: #CED0D4; }

/* ===== Ch5 · Analytics Agent ============================================ */
.aa-question-row { display: flex; gap: 10px; align-items: center; padding: 12px 0 16px; flex-wrap: wrap; }
.aa-q-input { flex: 1; min-width: 0; padding: 9px 12px; background: #fff; border: 1.5px solid var(--theme-gray-200); border-radius: 8px; font: inherit; font-size: 13px; color: var(--fg-1); }
.aa-q-input:focus { outline: none; border-color: var(--theme-blue); box-shadow: 0 0 0 3px rgba(8,102,255,0.12); }
.aa-toggle { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--fg-strong); font-weight: 600; cursor: pointer; padding: 8px 12px; background: #fff; border: 1.5px solid var(--theme-gray-200); border-radius: 8px; }
.aa-toggle input { accent-color: var(--theme-red); }

.aa-stages { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px; border: 1px solid var(--theme-gray-200); border-radius: 10px; overflow: hidden; }
.aa-stage-col { background: #fff; display: flex; flex-direction: column; min-height: 320px; }
.aa-stage-col.dark { background: #0A1220; }
.aa-stage-head { padding: 10px 14px; background: var(--theme-gray-50); border-bottom: 1px solid var(--theme-gray-200); display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-2); font-weight: 700; }
.aa-stage-col.dark .aa-stage-head { background: rgba(255,255,255,0.04); color: rgba(255,255,255,0.5); border-bottom-color: rgba(255,255,255,0.06); }
.aa-stage-body { padding: 10px; flex: 1; display: flex; flex-direction: column; gap: 6px; }
.aa-step { display: grid; grid-template-columns: 32px 1fr auto; gap: 10px; align-items: center; padding: 10px 12px; border-radius: 8px; transition: var(--ease); border: 1px solid transparent; }
.aa-step .ico { width: 28px; height: 28px; border-radius: 50%; background: var(--theme-gray-100); color: var(--fg-2); display: grid; place-items: center; font-family: var(--font-mono); font-weight: 700; font-size: 11px; }
.aa-step.active { background: #F3F8FF; border-color: var(--theme-blue); }
.aa-step.active .ico { background: var(--theme-blue); color: #fff; animation: aa-pulse 1.2s infinite; }
@keyframes aa-pulse { 50% { box-shadow: 0 0 0 4px rgba(8,102,255,0.18); } }
.aa-step.done { background: #F4FBF5; }
.aa-step.done .ico { background: var(--theme-green); color: #fff; }
.aa-step.error { background: #FEF5F7; border-color: var(--theme-red); }
.aa-step.error .ico { background: var(--theme-red); color: #fff; }
.aa-step .title { font-size: 13px; font-weight: 700; color: var(--fg-1); letter-spacing: -0.005em; }
.aa-step.error .title { color: var(--theme-red); }
.aa-step .desc { font-size: 11.5px; color: var(--fg-2); margin-top: 2px; }
.aa-step .time { font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-2); letter-spacing: 0.02em; }

.aa-yaml-head { display: flex; justify-content: space-between; padding: 10px 14px; border-bottom: 1px solid rgba(255,255,255,0.06); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(255,255,255,0.55); font-weight: 700; }
.aa-yaml { padding: 14px 16px; font-family: var(--font-mono); font-size: 11.5px; line-height: 1.7; color: #E8EAED; white-space: pre; overflow: auto; margin: 0; flex: 1; }

.aa-answer { margin-top: 14px; padding: 18px 22px; background: #F4FBF5; border: 1px solid var(--theme-green); border-radius: 10px; }
.aa-answer.err { background: #FEF5F7; border-color: var(--theme-red); }
.aa-answer .lab { font-family: var(--font-mono); font-size: 10px; font-weight: 800; letter-spacing: 0.14em; color: var(--theme-green); text-transform: uppercase; }
.aa-answer.err .lab { color: var(--theme-red); }
.aa-answer .v { font-size: 24px; font-weight: 800; letter-spacing: -0.025em; color: var(--fg-1); margin-top: 6px; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.aa-answer .src { font-family: var(--font-mono); font-size: 11px; color: var(--fg-2); margin-top: 8px; letter-spacing: 0.02em; }

/* SQL syntax tokens (reuse from Ch0 but also here) */
.code-body .tok-k { color: #FF7AB6; }
.code-body .tok-s { color: #7FE084; }
.code-body .tok-n { color: #FFC65C; }
.code-body .tok-c { color: #5A6E8F; font-style: italic; }
.code-body .tok-f { color: #4AD9E0; }
.code-body .tok-t { color: #C9A3FF; }

/* ===== Responsive ======================================================= */
@media (max-width: 1200px) {
  .hero-title { font-size: 42px; }
  .app { grid-template-columns: 220px 1fr; }
  .content { padding: 36px 40px 72px; }
  .sc-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sb { position: relative; height: auto; padding: 14px; }
  .fmt-strip, .eng-cards { grid-template-columns: 1fr; }
  .lh-diagram { grid-template-columns: 1fr; }
  .lh-arrow { writing-mode: horizontal-tb; transform: none; padding: 10px; }
  .sc-disk { grid-template-columns: 1fr; }
  .sc-axis-left { display: none; }
  .hero-meta { grid-template-columns: 1fr; gap: 12px; }
}

/* v4 styles · full */


/* ============================================================
 * v5 · new sim types
 * Ch1.5 · Ch5 · Ch6 · Ch8 · Ch9
 * ============================================================ */

/* shared tiny controls used in new sims */
.ctl-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 14px; padding: 12px 14px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px; }
.ctl-group { display: flex; flex-direction: column; gap: 6px; }
.ctl-lab { font: 500 10.5px var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-2); }
.ctl-slider { display: flex; flex-direction: column; min-width: 140px; flex: 0 0 auto; }
.ctl-slider .row { display: flex; justify-content: space-between; font: 500 11px var(--font-mono); color: var(--fg-2); margin-bottom: 3px; }
.ctl-slider .row .val { color: var(--fg-1); font-weight: 600; }
.ctl-slider.warn .val { color: #B8770A; }
.ctl-slider input[type=range] { width: 100%; accent-color: var(--accent); }
.pill-row { display: flex; flex-wrap: wrap; gap: 6px; }
.pill { position: relative; background: var(--bg-1); border: 1px solid var(--border); color: var(--fg-1); font: 600 11.5px var(--font-sans); letter-spacing: 0.02em; padding: 7px 11px; border-radius: 8px; cursor: pointer; display: flex; flex-direction: column; align-items: flex-start; gap: 2px; transition: all 0.12s; }
.pill:hover { border-color: var(--fg-2); }
.pill.on { background: var(--accent-weak); border-color: var(--accent); color: var(--accent); }
.pill .ps { font: 400 10px var(--font-mono); color: var(--fg-2); text-transform: none; letter-spacing: 0; }
.pill.on .ps { color: var(--accent); opacity: 0.75; }
.readout-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 14px; }
.readout { padding: 12px 13px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px; }
.readout .r-k { font: 500 10.5px var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--fg-2); margin-bottom: 6px; }
.readout .r-v { font: 700 22px var(--font-display); color: var(--fg-1); line-height: 1; margin-bottom: 4px; letter-spacing: -0.02em; }
.readout .r-s { font: 400 11px var(--font-mono); color: var(--fg-2); }
.readout.blue .r-v { color: var(--accent); }
.readout.ok .r-v { color: var(--theme-green); }
.readout.warn { border-color: rgba(247,185,40,0.35); background: #FFFBF2; }
.readout.warn .r-v { color: #B8770A; }
.readout.danger { border-color: rgba(228,30,63,0.35); background: #FFF5F6; }
.readout.danger .r-v { color: var(--theme-red); }

/* ============================================================
 * Ch1.5 · Conveyor belt v2 — event-time axis, watermark, ledger
 * ============================================================ */
.cv-stage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 0;
  height: 280px;
  background: linear-gradient(180deg, #FBFBFC 0%, #F3F5F8 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 10px;
}
.cv-field {
  position: relative;
  overflow: hidden;
  min-width: 0;
}
.cv-bg-svg, .cv-links-svg {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  display: block;
  pointer-events: none;
}
.cv-links-svg { z-index: 5; }

/* HTML labels over backing svg */
.cv-labels { position: absolute; inset: 0; pointer-events: none; }
.cv-label-settled {
  position: absolute;
  top: 8px;
  padding: 2px 0 2px 8px;
  font: 700 10px var(--font-mono);
  letter-spacing: 0.1em;
  color: #31A24C;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cv-label-watermark {
  position: absolute;
  top: 6px;
  transform: translateX(-100%);
  margin-left: -4px;
  font: 700 9px var(--font-mono);
  letter-spacing: 0.12em;
  color: #B8770A;
  background: rgba(255,251,242,0.92);
  padding: 3px 6px;
  border-radius: 4px;
  border: 1px solid rgba(247,185,40,0.35);
  text-align: center;
  line-height: 1.3;
  white-space: nowrap;
}
.cv-label-watermark span {
  font: 500 8.5px var(--font-mono);
  color: #8B5C00;
  letter-spacing: 0.04em;
}
.cv-label-gate {
  position: absolute;
  top: 34px;
  transform: translateX(-50%);
  text-align: center;
  pointer-events: none;
}
.cv-label-gate .g {
  font: 800 11px var(--font-mono);
  letter-spacing: 0.15em;
  color: var(--accent);
  background: #fff;
  padding: 3px 7px;
  border-radius: 5px;
  border: 1.5px solid var(--accent);
  margin-bottom: 3px;
}
.cv-label-gate .gsub {
  font: 600 9.5px var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--fg-2);
  text-transform: lowercase;
}
.cv-label-now {
  position: absolute;
  right: 8px; top: 8px;
  font: 700 10px var(--font-mono);
  letter-spacing: 0.12em;
  color: var(--fg-2);
}

/* HTML events layer */
.cv-events-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
}
.cv-ev {
  position: absolute;
  transform: translate(-50%, -50%);
  min-width: 30px;
  padding: 2px 5px;
  border-radius: 4px;
  font: 800 10px var(--font-mono);
  letter-spacing: 0.02em;
  text-align: center;
  color: #fff;
  box-shadow: 0 1px 2px rgba(0,0,0,0.18);
  white-space: nowrap;
  line-height: 1.25;
}
.cv-ev.cv-falling {
  background: #6B7787;
  opacity: 0.9;
}
.cv-ev.cv-onbelt { background: var(--accent); }
.cv-ev.cv-passed {
  background: #31A24C;
  opacity: 0.85;
}
.cv-ev.cv-dup {
  background: #E41E3F;
  animation: cv-dup-out 0.55s ease-out forwards;
}
.cv-ev.cv-late {
  background: #F7B928;
  color: #442E00;
  animation: cv-late-out 0.55s cubic-bezier(0.5, 0, 0.75, 0) forwards;
}
@keyframes cv-dup-out {
  0% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
  40% { transform: translate(-50%, -50%) scale(1.4); opacity: 0.95; }
  100% { transform: translate(-50%, -120%) scale(0.4); opacity: 0; }
}
@keyframes cv-late-out {
  0% { transform: translate(-50%, -50%); opacity: 1; }
  100% { transform: translate(-50%, 40px); opacity: 0; }
}
.reduce-motion .cv-ev.cv-dup,
.reduce-motion .cv-ev.cv-late { animation: none; opacity: 0.3; }

/* ledger panel (right column) */
.cv-ledger {
  background: #fff;
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 10px 12px;
  gap: 6px;
  font-family: var(--font-mono);
  min-width: 0;
}
.cv-ledger-head {
  display: flex; align-items: center; justify-content: space-between;
  font: 700 9.5px var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-2);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.cv-ledger-head .n {
  background: var(--accent);
  color: #fff;
  font-size: 9px;
  padding: 1px 6px;
  border-radius: 9px;
  min-width: 18px;
  text-align: center;
}
.cv-ledger-body {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-height: 0;
}
.cv-ledger-body .empty {
  font: 500 10.5px var(--font-mono);
  color: var(--fg-2);
  text-align: center;
  padding: 20px 0;
}
.cv-ledger-row {
  display: grid;
  grid-template-columns: 18px 1fr;
  align-items: center;
  gap: 6px;
  padding: 3px 6px;
  border-radius: 4px;
  background: var(--bg-2);
  border: 1px solid transparent;
}
.cv-ledger-row .i {
  font: 600 9.5px var(--font-mono);
  color: var(--fg-2);
  text-align: right;
}
.cv-ledger-row code {
  font: 700 10.5px var(--font-mono);
  color: var(--fg-1);
  letter-spacing: 0.02em;
}
.cv-ledger-foot {
  font: 600 9.5px var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-2);
  padding-top: 4px;
  border-top: 1px solid var(--border);
  text-align: center;
}

/* late drawer v2 */
.cv-drawer-2 {
  background: #FFFBF2;
  border: 1px dashed rgba(247,185,40,0.5);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 10px;
}
.cv-drawer-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}
.cv-drawer-head .k {
  font: 700 10px var(--font-mono);
  letter-spacing: 0.12em;
  color: #8B5C00;
}
.cv-drawer-head .c {
  background: #F7B928;
  color: #442E00;
  font: 700 10px var(--font-mono);
  padding: 1px 7px;
  border-radius: 9px;
  min-width: 20px;
  text-align: center;
}
.cv-drawer-head .h {
  font: 500 11px var(--font-sans);
  color: var(--fg-2);
  margin-left: auto;
}
.cv-drawer-rows {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 22px;
}
.cv-drawer-rows .empty {
  font: 500 11px var(--font-mono);
  color: var(--fg-2);
  padding: 3px 4px;
}
.cv-late-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid rgba(247,185,40,0.35);
  border-radius: 6px;
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
}
.cv-late-row code { font-weight: 700; color: var(--fg-1); }
.cv-late-row .et { color: var(--fg-2); font-size: 10.5px; }
.cv-late-row .lag { color: #B8770A; font-weight: 700; font-size: 10.5px; }

/* readouts (compact, sim-local) */
.cv-readouts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 10px;
}
.cv-r {
  position: relative;
  padding: 10px 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.cv-r .k {
  font: 600 10px var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-2);
  margin-bottom: 5px;
}
.cv-r .v {
  font: 700 22px var(--font-display);
  color: var(--fg-1);
  line-height: 1;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.cv-r .s {
  font: 400 10.5px var(--font-mono);
  color: var(--fg-2);
}
.cv-r.cv-r-rt .v { color: var(--accent); }
.cv-r.cv-r-wh .v { color: #31A24C; }
.cv-r.warn { border-color: rgba(247,185,40,0.4); background: #FFFBF2; }
.cv-r.warn .v { color: #B8770A; }
.cv-r.danger { border-color: rgba(228,30,63,0.35); background: #FFF5F6; }
.cv-r.danger .v { color: var(--theme-red); }
.cv-r .cv-spark {
  position: absolute;
  right: 8px; bottom: 6px;
  width: 60px; height: 22px;
  opacity: 0.55;
  pointer-events: none;
}
.cv-gate-nums {
  display: flex;
  gap: 10px;
  font: 700 14px var(--font-mono);
  color: var(--fg-1);
  align-items: baseline;
}
.cv-gate-nums span { font-weight: 500; color: var(--fg-2); font-size: 11px; }
.cv-gate-nums b { font-weight: 800; color: var(--fg-1); font-size: 18px; margin-right: 3px; }

/* controls */
.cv-ctls {
  display: grid;
  grid-template-columns: minmax(300px, 1.1fr) 2fr auto;
  gap: 14px;
  padding: 12px 14px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  align-items: center;
}
.cv-guards {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.cv-guard {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  align-items: flex-start;
  padding: 8px 10px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.14s;
}
.cv-guard:hover { border-color: var(--fg-2); }
.cv-guard.on { background: var(--accent-weak); border-color: var(--accent); }
.cv-guard input { accent-color: var(--accent); margin: 2px 0 0 0; }
.cv-guard .n { font: 600 12px var(--font-sans); color: var(--fg-1); }
.cv-guard .n code { font: 700 11px var(--font-mono); color: var(--accent); background: rgba(45,125,255,0.08); padding: 1px 4px; border-radius: 3px; }
.cv-guard .d { font: 400 10.5px var(--font-mono); color: var(--fg-2); margin-top: 2px; }
.cv-sliders {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.cv-slider {
  display: flex; flex-direction: column;
  padding: 6px 10px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.cv-slider .row { display: flex; justify-content: space-between; font: 600 10.5px var(--font-mono); color: var(--fg-2); margin-bottom: 3px; }
.cv-slider .row .val { color: var(--fg-1); font-weight: 700; }
.cv-slider.warn .row .val { color: #B8770A; }
.cv-slider input[type=range] { width: 100%; accent-color: var(--accent); }
.cv-btns {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
@media (max-width: 1100px) {
  .cv-stage { grid-template-columns: 1fr 150px; height: 260px; }
  .cv-readouts { grid-template-columns: repeat(2, 1fr); }
  .cv-ctls { grid-template-columns: 1fr; }
  .cv-sliders { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================================
 * Ch5 · Trust meter
 * ============================================================ */
.tm-layout {
  display: grid;
  grid-template-columns: 250px 1fr 290px;
  gap: 14px;
  margin-bottom: 14px;
}
.tm-checks {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  display: flex; flex-direction: column; gap: 6px;
}
.tm-title { font: 600 10.5px var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-2); margin-bottom: 4px; }
.tm-check {
  display: grid;
  grid-template-columns: 16px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.14s;
}
.tm-check:hover { border-color: var(--fg-2); }
.tm-check.on { background: var(--accent-weak); border-color: var(--accent); }
.tm-check input { accent-color: var(--accent); margin: 0; }
.tm-check .n { font: 600 12px var(--font-sans); color: var(--fg-1); }
.tm-check .d { font: 400 10.5px var(--font-mono); color: var(--fg-2); margin-top: 1px; }
.tm-check .w { font: 700 11px var(--font-mono); color: var(--fg-2); }
.tm-check.on .w { color: var(--accent); }

.tm-meter {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  display: flex; flex-direction: column;
  align-items: center;
  position: relative;
}
.tm-gauge { position: relative; width: 100%; max-width: 260px; }
/* --- Trust Meter: horizontal score card --- */
.tm-meter {
  display: flex; flex-direction: column; align-items: stretch; gap: 14px;
  padding: 20px 22px;
  background: linear-gradient(180deg, var(--bg-1) 0%, transparent 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  align-self: start;
  width: 100%;
  min-width: 260px;
}
.tm-score-lab {
  font: 500 10.5px var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-2);
}
.tm-score-big {
  font: 800 72px var(--font-display);
  letter-spacing: -0.045em;
  line-height: 0.95;
  font-variant-numeric: tabular-nums;
  transition: color 0.3s;
}
.tm-score-big .tm-score-max {
  font: 600 22px var(--font-display);
  color: var(--fg-2);
  letter-spacing: -0.02em;
  margin-left: 2px;
}
.tm-verdict {
  display: inline-block;
  align-self: flex-start;
  font: 700 10px var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 4px;
  margin-top: -4px;
}
.tm-verdict.ok   { background: rgba(49,162,76,0.14);  color: #1F7A38; }
.tm-verdict.warn { background: rgba(247,185,40,0.2);  color: #8B5C00; }
.tm-verdict.bad  { background: rgba(228,30,63,0.14);  color: #B71030; }

.tm-bar { width: 100%; margin-top: 4px; }
.tm-bar-track {
  position: relative;
  width: 100%;
  height: 14px;
  border-radius: 7px;
  background: var(--theme-gray-100);
  border: 1px solid var(--theme-gray-200);
  overflow: visible;
}
.tm-bar-zone {
  position: absolute; top: 0; height: 100%;
  opacity: 0.85;
}
.tm-bar-zone.bad  { background: #F3B4C0; border-radius: 7px 0 0 7px; }
.tm-bar-zone.warn { background: #FBE3A4; }
.tm-bar-zone.ok   { background: #B8E2C3; border-radius: 0 7px 7px 0; }
.tm-bar-needle {
  position: absolute;
  top: -5px;
  width: 5px;
  height: 24px;
  border-radius: 2.5px;
  transform: translateX(-50%);
  box-shadow: 0 0 0 2px var(--bg-2), 0 2px 6px rgba(0,0,0,0.28);
  transition: left 0.35s cubic-bezier(.4,.7,.3,1), background 0.25s;
  z-index: 2;
}
.tm-bar-ticks {
  position: relative;
  width: 100%;
  margin-top: 10px;
  height: 14px;
  font: 500 10px var(--font-mono);
  color: var(--fg-2);
  font-variant-numeric: tabular-nums;
}
.tm-bar-ticks > span {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
}
.tm-bar-ticks > span:nth-child(1) { left: 0;    transform: none; }
.tm-bar-ticks > span:nth-child(4) { right: 0;   transform: none; left: auto; }

.tm-breakdown {
  display: flex; flex-direction: column;
  gap: 2px;
  margin-top: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.tm-bd {
  display: grid;
  grid-template-columns: 12px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  font: 500 12px var(--font-display);
}
.tm-bd-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--theme-gray-300);
  justify-self: center;
  transition: background 0.2s;
}
.tm-bd.on .tm-bd-dot { background: var(--theme-green); box-shadow: 0 0 0 3px rgba(49,162,76,0.14); }
.tm-bd.off { color: var(--fg-2); }
.tm-bd.off .tm-bd-n { text-decoration: line-through; opacity: 0.55; }
.tm-bd-w {
  font: 700 11px var(--font-mono);
  color: var(--theme-blue);
  font-variant-numeric: tabular-nums;
}
.tm-bd.off .tm-bd-w { color: var(--theme-gray-300); }

/* .tm-dash family removed in v12 — replaced by .tm-impact-* (Ch5).
   Keep `pulse` keyframe (still used by other elements) and .tm-ticket. */
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.55; } }
.tm-ticket { margin-top: 4px; padding: 9px 11px; background: #FFF0F2; border: 1px solid rgba(228,30,63,0.3); border-radius: 8px; }
.tm-ticket .ti-k { font: 700 9.5px var(--font-mono); letter-spacing: 0.1em; color: var(--theme-red); }
.tm-ticket .ti-id { font: 800 18px var(--font-mono); color: var(--theme-red); margin-top: 2px; letter-spacing: -0.01em; }
.tm-ticket .ti-d { font: 500 10.5px var(--font-mono); color: var(--fg-2); margin-top: 3px; }

.tm-timeline { background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; margin-bottom: 10px; }
.tm-timeline-lab { font: 600 10.5px var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-2); margin-bottom: 9px; }
.tm-days { display: grid; grid-template-columns: repeat(30, 1fr); gap: 3px; margin-bottom: 10px; }
.tm-day { position: relative; height: 24px; border-radius: 3px; transition: all 0.15s; }
.tm-day.pending { background: var(--border); }
.tm-day.ok { background: var(--theme-green); }
.tm-day.fail { background: var(--theme-red); box-shadow: 0 0 0 2px rgba(228,30,63,0.2); }
.tm-day.caught { background: #F7B928; box-shadow: 0 0 0 2px rgba(247,185,40,0.25); }
.tm-day.running { background: var(--accent); animation: pulse 0.6s ease-in-out infinite; }
.tm-day.corrupt-mark::after { content: ''; position: absolute; bottom: -6px; left: 50%; transform: translateX(-50%); border-left: 4px solid transparent; border-right: 4px solid transparent; border-top: 5px solid #B8770A; }
.tm-day .mark { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); font: 700 11px var(--font-mono); color: #B8770A; }
.tm-timeline-legend { display: flex; gap: 16px; font: 500 10.5px var(--font-mono); color: var(--fg-2); }
.tm-timeline-legend .sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; vertical-align: -1px; margin-right: 5px; }
.tm-timeline-legend .sw.pending { background: var(--border); }
.tm-timeline-legend .sw.ok { background: var(--theme-green); }
.tm-timeline-legend .sw.fail { background: var(--theme-red); }
.tm-timeline-legend .sw.caught { background: #F7B928; }
.tm-timeline-legend .sw.corrupt-mark { background: #B8770A; }

.tm-corr-picker { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.tm-corr-lab { font: 600 10.5px var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--fg-2); margin-right: 4px; }
.tm-corr {
  font: 600 11px var(--font-mono);
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-1);
  color: var(--fg-2);
  cursor: pointer;
  transition: all 0.15s;
}
.tm-corr:hover { border-color: var(--fg-2); color: var(--fg-1); }
.tm-corr.on {
  background: #FFF0F2;
  border-color: var(--theme-red);
  color: var(--theme-red);
}

/* ============================================================
 * Ch6 · Discovery speedrun + Lineage camera
 * ============================================================ */
.ds-intro-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.ds-shortcut-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
}
.ds-shortcut-card code { font: 700 14px var(--font-mono); color: var(--accent); display: block; margin-bottom: 5px; }
.ds-shortcut-card .w { font: 400 12px var(--font-sans); color: var(--fg-2); line-height: 1.4; }

.ds-terminal {
  background: #0D1117;
  border: 1px solid #1F2A38;
  border-radius: 12px;
  padding: 0;
  overflow: hidden;
  font-family: var(--font-mono);
  position: relative;
  transition: box-shadow 0.2s;
}
.ds-terminal.flash-ok { box-shadow: 0 0 0 3px rgba(49,162,76,0.5); }
.ds-terminal.flash-err { box-shadow: 0 0 0 3px rgba(228,30,63,0.5); animation: ds-shake 0.35s; }
@keyframes ds-shake { 0%, 100% { transform: translateX(0); } 20% { transform: translateX(-5px); } 40% { transform: translateX(5px); } 60% { transform: translateX(-3px); } 80% { transform: translateX(3px); } }
.ds-term-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 14px;
  background: #161C23;
  border-bottom: 1px solid #1F2A38;
  font: 600 11px var(--font-mono);
  color: #8B95A6;
}
.ds-term-head .t { letter-spacing: 0.05em; }
.ds-term-head .clk { display: flex; gap: 4px; }
.ds-term-head .clk .d { width: 9px; height: 9px; border-radius: 50%; background: #E41E3F; }
.ds-term-head .clk .d.y { background: #F7B928; }
.ds-term-head .clk .d.g { background: #31A24C; }
.ds-term-body { padding: 18px 20px; color: #E5EEF7; }
.ds-q { font: 500 15px var(--font-sans); color: #E5EEF7; margin-bottom: 4px; }
.ds-q b { color: #7DD3FC; font-weight: 700; }
.ds-q .q-lab { color: #4ADE80; font-weight: 700; margin-right: 8px; }
.ds-hint { font: 400 12px var(--font-mono); color: #8B95A6; margin-bottom: 18px; }
.ds-prompt { display: flex; align-items: center; gap: 10px; background: #0A0E13; padding: 12px 14px; border-radius: 8px; border: 1px solid #1F2A38; }
.ds-prompt .p { color: #4ADE80; font: 700 14px var(--font-mono); }
.ds-prompt input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #E5EEF7;
  font: 500 14px var(--font-mono);
}
.ds-prompt input::placeholder { color: #4F5A6B; }
.ds-prompt kbd {
  background: #1F2A38;
  color: #8B95A6;
  border-radius: 4px;
  padding: 2px 7px;
  font: 600 11px var(--font-mono);
  border: 1px solid #2C3A4A;
}
.ds-toast { position: absolute; top: 12px; right: 14px; padding: 6px 11px; border-radius: 6px; font: 700 11px var(--font-mono); }
.ds-toast.err { background: rgba(228,30,63,0.2); color: #FF5A6D; border: 1px solid rgba(228,30,63,0.4); }

.ds-result {
  margin-top: 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--theme-green);
  border-radius: 10px;
  padding: 14px;
  animation: ds-slide 0.35s ease-out;
}
@keyframes ds-slide { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
.reduce-motion .ds-result { animation: none; }
.ds-result-head { font: 700 12px var(--font-mono); color: var(--theme-green); letter-spacing: 0.04em; margin-bottom: 10px; }
.ds-result.is-revealed .ds-result-head { color: #B8770A; }
.ds-result-rows { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px 14px; margin-bottom: 8px; }
.ds-row { display: flex; gap: 10px; font: 500 12px var(--font-mono); }
.ds-row .k { color: var(--fg-2); text-transform: uppercase; letter-spacing: 0.05em; font-size: 10.5px; min-width: 70px; padding-top: 1px; }
.ds-row .v { color: var(--fg-1); font-weight: 600; }
.ds-schema { background: var(--bg-1); border: 1px solid var(--border); border-radius: 6px; padding: 8px 12px; margin-top: 6px; }
.ds-schema-row { font: 500 11.5px var(--font-mono); color: var(--fg-1); padding: 2px 0; border-bottom: 1px dashed var(--border); }
.ds-schema-row:last-child { border-bottom: none; }
.ds-result-body { font: 400 13px var(--font-sans); color: var(--fg-1); line-height: 1.55; }
.ds-lineage-mini { display: flex; align-items: center; gap: 24px; }
.ds-lineage-root { background: var(--accent-weak); border: 1.5px solid var(--accent); color: var(--accent); font: 700 12px var(--font-mono); padding: 8px 14px; border-radius: 7px; }
.ds-lineage-fan { display: flex; flex-direction: column; gap: 5px; position: relative; }
.ds-lineage-fan::before { content: ''; position: absolute; left: -16px; top: 20%; bottom: 20%; width: 1px; background: var(--fg-2); opacity: 0.4; }
.ds-lineage-leaf { padding: 6px 10px; border-radius: 6px; background: var(--bg-1); border: 1px solid var(--border); position: relative; }
.ds-lineage-leaf::before { content: ''; position: absolute; left: -16px; top: 50%; width: 16px; height: 1px; background: var(--fg-2); opacity: 0.4; }
.ds-lineage-leaf .n { font: 600 12px var(--font-mono); color: var(--fg-1); }
.ds-lineage-leaf .o { font: 500 10.5px var(--font-mono); color: var(--fg-2); margin-top: 1px; }
.ds-lineage-leaf.k-metric { border-color: rgba(49,162,76,0.3); background: #F4FBF5; }
.ds-lineage-leaf.k-dash { border-color: rgba(45,125,255,0.3); background: #F3F8FF; }

.ds-progress { display: flex; gap: 6px; margin-top: 12px; justify-content: center; }
.ds-prog-dot {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--border);
  color: var(--fg-2);
  font: 700 11px var(--font-mono);
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.ds-prog-dot.done { background: var(--theme-green); color: #fff; }
.ds-prog-dot.active { background: var(--accent); color: #fff; transform: scale(1.15); box-shadow: 0 0 0 3px var(--accent-weak); }

.ds-leaderboard { display: flex; flex-direction: column; gap: 6px; }
.ds-lb-row { display: grid; grid-template-columns: 40px 1fr auto; gap: 16px; align-items: center; padding: 10px 14px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 8px; }
.ds-lb-row.you { background: var(--accent-weak); border-color: var(--accent); }
.ds-lb-row .rank { font: 800 14px var(--font-mono); color: var(--fg-2); }
.ds-lb-row.you .rank { color: var(--accent); }
.ds-lb-row .name { font: 600 13px var(--font-mono); color: var(--fg-1); }
.ds-lb-row .time { font: 700 14px var(--font-mono); color: var(--fg-1); }

.lc-stage { background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px; padding: 8px; }

/* ============================================================
 * Ch8 · Permission gate
 * ============================================================ */
.pg-layout { display: grid; grid-template-columns: 220px 1fr; gap: 14px; margin-bottom: 14px; }
.pg-chip-rail {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  display: flex; flex-direction: column; gap: 6px;
}
.pg-rail-lab { font: 600 10.5px var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-2); margin-bottom: 4px; }
.pg-chip {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: grab;
  transition: all 0.12s;
}
.pg-chip:hover { border-color: var(--fg-2); transform: translateY(-1px); }
.pg-chip.dragging { opacity: 0.5; transform: scale(0.95); border-color: var(--accent); }
.pg-chip:active { cursor: grabbing; }
.pg-chip .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--sw); flex-shrink: 0; }
.pg-chip code { font: 600 11.5px var(--font-mono); color: var(--fg-1); }
.pg-rail-hint { font: 400 10.5px var(--font-mono); color: var(--fg-2); margin-top: 6px; line-height: 1.4; padding: 0 4px; }
.pg-zone-toggle { display: flex; align-items: center; gap: 8px; margin-top: 10px; padding: 9px 10px; background: var(--bg-1); border: 1px solid var(--border); border-radius: 8px; cursor: pointer; font: 500 11.5px var(--font-mono); color: var(--fg-1); }
.pg-zone-toggle input { accent-color: var(--accent); }
.pg-zone-toggle code { color: var(--accent); }

.pg-ide {
  background: #FDFDFE;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  font-family: var(--font-mono);
}
.pg-ide-head {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px;
  background: #F2F4F7;
  border-bottom: 1px solid var(--border);
  font: 600 11px var(--font-mono);
  color: var(--fg-2);
}
.pg-ide-head .dots { display: flex; gap: 4px; }
.pg-ide-head .dots i { width: 9px; height: 9px; border-radius: 50%; background: #C5CAD2; }
.pg-ide-head .f { color: var(--fg-1); font-weight: 700; }
.pg-ide-head .sp { margin-left: auto; color: var(--fg-2); font-weight: 500; }
.pg-ide-body { padding: 10px 0; }
.pg-ide-ln {
  display: grid;
  grid-template-columns: 40px 1fr;
  align-items: center;
  padding: 3px 12px;
  font: 500 12.5px var(--font-mono);
  color: var(--fg-1);
}
.pg-ide-ln .ln { color: var(--fg-2); font-size: 10.5px; text-align: right; padding-right: 10px; }
.pg-col-row { cursor: pointer; transition: background 0.14s; }
.pg-col-row.drop { background: var(--accent-weak); }
.pg-col-row.bad { background: #FFF0F2; }
.pg-col-row.ok { background: #F4FBF5; }
.pg-col-inner { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.pg-col-inner .mk { color: var(--fg-2); }
.pg-col-inner .nm { color: var(--fg-1); font-weight: 600; }
.pg-col-inner .ty { color: var(--fg-2); }
.pg-col-inner .pii { display: inline-block; background: #FFF0F2; color: var(--theme-red); font-size: 9.5px; padding: 1px 6px; border-radius: 3px; letter-spacing: 0.06em; font-weight: 700; }
.pg-col-inner .actor { margin-left: auto; }
.pill-actor { display: inline-flex; align-items: center; gap: 4px; background: var(--accent-weak); color: var(--accent); border: 1px solid var(--accent); padding: 2px 7px; border-radius: 5px; font-size: 11px; cursor: pointer; }
.pill-actor code { color: var(--accent); font-weight: 700; }
.pill-actor i { color: var(--accent); font-style: normal; opacity: 0.55; padding-left: 2px; }
.pill-need { display: inline-block; background: #FFF0F2; color: var(--theme-red); border: 1px dashed rgba(228,30,63,0.4); padding: 2px 7px; border-radius: 5px; font-size: 10.5px; font-weight: 600; }
.pill-need code { color: var(--theme-red); }
.pill-opt { color: var(--fg-2); font-size: 10.5px; opacity: 0.7; }

.pg-console {
  background: #0D1117;
  border: 1px solid #1F2A38;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 10px;
}
.pg-console-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 14px;
  background: #161C23;
  font: 600 11px var(--font-mono);
  color: #8B95A6;
  border-bottom: 1px solid #1F2A38;
}
.pg-status.idle { color: #8B95A6; }
.pg-status.deploying { color: #7DD3FC; animation: pulse 1s ease-in-out infinite; }
.pg-status.blocked { color: #FF5A6D; }
.pg-status.shipped { color: #4ADE80; }
.pg-console-body { padding: 12px 14px; font: 500 12px var(--font-mono); color: #E5EEF7; max-height: 220px; overflow-y: auto; }
.pg-console-body .empty { color: #4F5A6B; }
.pg-c-ln { padding: 2px 0; }
.pg-c-ln.ok { color: #4ADE80; }
.pg-c-ln.err { color: #FF5A6D; font-weight: 600; }

/* ============================================================
 * Ch9 · Capstone builder
 * ============================================================ */
.cap-root {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}
.cap-rail {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  margin-bottom: 16px;
}
.cap-rail-step { display: grid; grid-template-columns: 44px 1fr; gap: 10px; align-items: center; padding: 10px 8px; position: relative; cursor: default; }
.cap-rail-step.active { cursor: default; }
.cap-rail-step.done { cursor: pointer; }
.cap-rail-num {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--bg-1);
  border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font: 700 15px var(--font-mono);
  color: var(--fg-2);
  transition: all 0.2s;
  z-index: 1;
}
.cap-rail-step.active .cap-rail-num { border-color: var(--accent); color: var(--accent); background: var(--accent-weak); box-shadow: 0 0 0 4px var(--accent-weak); }
.cap-rail-step.done .cap-rail-num { background: var(--theme-green); border-color: var(--theme-green); color: #fff; }
.cap-rail-num .icon { line-height: 1; }
.cap-rail-meta .k { font: 700 9.5px var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-2); }
.cap-rail-step.active .cap-rail-meta .k { color: var(--accent); }
.cap-rail-step.done .cap-rail-meta .k { color: var(--theme-green); }
.cap-rail-meta .n { font: 600 12.5px var(--font-sans); color: var(--fg-1); line-height: 1.2; }
.cap-rail-meta .ch { font: 500 10px var(--font-mono); color: var(--fg-2); margin-top: 2px; }
.cap-rail-conn { position: absolute; left: calc(50% + 24px); right: calc(-50% + 24px); top: 30px; height: 2px; background: var(--border); z-index: 0; }
.cap-rail-conn.done { background: var(--theme-green); }

.cap-panes {
  display: grid;
  grid-template-columns: 180px 1fr 320px;
  gap: 12px;
  margin-bottom: 14px;
}
.cap-tree {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 10px;
  font-family: var(--font-mono);
}
.cap-tree-head { font: 700 11px var(--font-mono); color: var(--fg-1); margin-bottom: 8px; }
.cap-tree-sub { font: 600 10.5px var(--font-mono); color: var(--fg-2); margin: 10px 0 4px; padding-left: 6px; }
.cap-file { font: 500 11.5px var(--font-mono); color: var(--fg-2); padding: 4px 6px; border-radius: 4px; }
.cap-file.focus { background: var(--accent-weak); color: var(--accent); font-weight: 600; }
.cap-file.done { color: var(--fg-1); }
.cap-file.muted { opacity: 0.55; }

.cap-editor {
  background: #FDFDFE;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  min-height: 320px;
  display: flex;
  flex-direction: column;
}
.cap-editor-inner { display: flex; flex-direction: column; height: 100%; }
.cap-editor-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 14px;
  background: #F2F4F7;
  border-bottom: 1px solid var(--border);
  font: 700 11.5px var(--font-mono);
  color: var(--fg-1);
}
.cap-editor-head .lang { font-weight: 500; color: var(--fg-2); letter-spacing: 0.06em; text-transform: uppercase; font-size: 10.5px; }
.cap-editor-head .lang.deploying { color: #7DD3FC; animation: pulse 1s infinite; }
.cap-editor-head .lang.shipped { color: var(--theme-green); }
.cap-editor-body { padding: 16px 18px; flex: 1; }
.cap-code { font: 500 13px var(--font-mono); color: var(--fg-1); line-height: 1.8; }
.cap-code > div { min-height: 22px; }

.cap-slot {
  display: inline-block;
  min-width: 120px;
  padding: 2px 10px;
  background: var(--bg-2);
  border: 1.5px dashed var(--fg-2);
  border-radius: 5px;
  color: var(--fg-2);
  font: 600 12px var(--font-mono);
  text-align: center;
  cursor: default;
  transition: all 0.14s;
}
.cap-slot.drop { background: var(--accent-weak); border-color: var(--accent); color: var(--accent); }
.cap-slot.ok { background: #F4FBF5; border-color: var(--theme-green); border-style: solid; color: var(--theme-green); }
.cap-slot.bad { background: #FFF0F2; border-color: var(--theme-red); border-style: solid; color: var(--theme-red); animation: ds-shake 0.4s; }

.cap-token-rail { margin-top: 14px; padding: 12px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 8px; }
.cap-token-lab { font: 600 10.5px var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-2); margin-bottom: 8px; }
.cap-tokens { display: flex; flex-wrap: wrap; gap: 6px; }
.cap-token {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 11px;
  font: 600 12px var(--font-mono);
  color: var(--fg-1);
  cursor: grab;
  transition: all 0.14s;
}
.cap-token:hover { border-color: var(--accent); }
.cap-token:active { cursor: grabbing; }

.cap-pick {
  background: var(--bg-2);
  border: 1.5px solid var(--border);
  border-radius: 5px;
  padding: 4px 10px;
  font: 700 13px var(--font-mono);
  color: var(--fg-1);
  cursor: pointer;
  transition: all 0.14s;
}
.cap-pick:hover { border-color: var(--accent); }
.cap-pick.right { background: #F4FBF5; border-color: var(--theme-green); color: var(--theme-green); }
.cap-pick.wrong { background: #FFF0F2; border-color: var(--theme-red); color: var(--theme-red); animation: ds-shake 0.4s; }

.cap-add {
  background: var(--accent-weak);
  border: 1px dashed var(--accent);
  border-radius: 5px;
  padding: 2px 10px;
  font: 700 11.5px var(--font-mono);
  color: var(--accent);
  cursor: pointer;
  transition: all 0.14s;
}
.cap-add:hover { background: var(--accent); color: #fff; }

.cap-dq-check { display: flex; align-items: center; gap: 8px; cursor: pointer; padding: 2px 0; }
.cap-dq-check input { accent-color: var(--accent); }

.cap-spec-row { display: flex; align-items: center; gap: 8px; padding: 3px 0; }
.cap-actor-set { margin-left: auto; font-size: 12px; background: var(--accent-weak); color: var(--accent); padding: 1px 8px; border-radius: 4px; font-weight: 600; }
.cap-actor-opt { margin-left: auto; font-size: 11px; color: var(--fg-2); font-style: italic; }
.cap-bind-row { display: flex; align-items: center; padding: 3px 0; }
.cap-bind-val { background: var(--accent-weak); color: var(--accent); padding: 1px 8px; border-radius: 4px; font: 600 11.5px var(--font-mono); }

.cap-banner { margin-top: 10px; padding: 10px 14px; border-radius: 8px; font: 500 12px var(--font-mono); line-height: 1.5; }
.cap-banner.err { background: #FFF0F2; border: 1px solid rgba(228,30,63,0.3); color: var(--theme-red); }
.cap-complete { margin-top: 12px; padding: 9px 14px; background: #F4FBF5; border: 1px solid rgba(49,162,76,0.3); color: var(--theme-green); font: 700 12px var(--font-mono); border-radius: 6px; animation: ds-slide 0.3s; }

.cap-right { display: flex; flex-direction: column; gap: 10px; }
.cap-viz { background: var(--bg-1); border: 1px solid var(--border); border-radius: 10px; padding: 14px; }
.cap-viz-head { font: 700 10.5px var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-2); margin-bottom: 10px; }
.cap-viz-caption { font: 400 11px var(--font-mono); color: var(--fg-2); margin-top: 10px; font-style: italic; }

.cap-viz-merge { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 6px; align-items: center; font-size: 10.5px; font-family: var(--font-mono); }
.cap-merge-side .lab { font-weight: 700; color: var(--fg-2); text-transform: uppercase; font-size: 9.5px; letter-spacing: 0.08em; margin-bottom: 4px; }
.cap-merge-side .rows { display: flex; flex-direction: column; gap: 2px; }
.cap-merge-side .row { background: var(--bg-2); border: 1px solid var(--border); padding: 3px 6px; border-radius: 4px; }
.cap-merge-side .row.new { background: var(--accent-weak); border-color: var(--accent); color: var(--accent); }
.cap-merge-side.out .row { background: #F4FBF5; border-color: rgba(49,162,76,0.3); }
.cap-merge-side.out .row.new { background: var(--accent-weak); color: var(--accent); border-color: var(--accent); }
.cap-merge-op, .cap-merge-arrow { font: 700 20px var(--font-mono); color: var(--fg-2); text-align: center; }

.cap-viz-retry .r-side { margin-bottom: 10px; }
.cap-viz-retry .lab { font: 700 10.5px var(--font-mono); letter-spacing: 0.06em; margin-bottom: 4px; }
.cap-viz-retry .lab.ok { color: var(--theme-green); }
.cap-viz-retry .lab.ko { color: var(--theme-red); }
.cap-viz-retry .bar { background: var(--bg-2); height: 8px; border-radius: 4px; overflow: hidden; margin-bottom: 4px; }
.cap-viz-retry .bar span { display: block; height: 100%; background: var(--theme-red); }
.cap-viz-retry .note { font: 400 10.5px var(--font-mono); color: var(--fg-2); }

.cap-viz-gate { display: grid; grid-template-columns: 1fr auto 1fr; gap: 10px; align-items: center; }
.cap-viz-gate .evs { display: flex; flex-direction: column; gap: 3px; }
.cap-viz-gate .ev { padding: 3px 7px; border-radius: 4px; font: 600 10.5px var(--font-mono); text-align: center; color: #fff; }
.cap-viz-gate .ev.ok { background: var(--accent); }
.cap-viz-gate .ev.dup { background: #F7B928; color: #442E00; text-decoration: line-through; }
.cap-viz-gate .ev.late { background: var(--theme-red); opacity: 0.55; }
.cap-viz-gate .past .ev { background: var(--theme-green); }
.cap-viz-gate .gate-line { width: 2px; height: 80px; background: var(--accent); border-radius: 1px; }

.cap-viz-meter { position: relative; display: flex; justify-content: center; }
.cap-viz-meter svg { width: 160px; }
.cap-viz-score { position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); font: 800 26px var(--font-display); color: var(--theme-green); }

.cap-viz-lineage { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.cap-viz-lineage .lx { padding: 6px 9px; border-radius: 6px; font: 600 10.5px var(--font-mono); }
.cap-viz-lineage .lx.k-spec { background: var(--accent-weak); color: var(--accent); border: 1px solid var(--accent); }
.cap-viz-lineage .lx.k-graph { background: var(--bg-2); border: 1px solid var(--border); color: var(--fg-1); }
.cap-viz-lineage .lx.k-sm { background: #F4FBF5; color: var(--theme-green); border: 1px solid rgba(49,162,76,0.3); opacity: 0.65; }
.cap-viz-lineage .lx-arr { color: var(--fg-2); font: 700 14px var(--font-mono); }

.cap-viz-agent .aq-q { font: 500 12.5px var(--font-sans); color: var(--fg-1); padding: 7px 10px; background: var(--bg-2); border-radius: 6px; margin-bottom: 8px; }
.cap-viz-agent .aq-trace { font: 500 10.5px var(--font-mono); color: var(--fg-2); padding: 6px 10px; background: var(--bg-2); border-radius: 6px; line-height: 1.7; margin-bottom: 8px; }
.cap-viz-agent .aq-a { font: 800 22px var(--font-display); color: var(--theme-green); letter-spacing: -0.02em; }
.cap-viz-agent .aq-a .src { font: 500 10.5px var(--font-mono); color: var(--fg-2); margin-left: 10px; letter-spacing: 0; }

.cap-shiplog { background: #0D1117; color: #E5EEF7; font: 500 11.5px var(--font-mono); padding: 14px; max-height: 360px; overflow-y: auto; }
.cap-ship-ln { padding: 2px 0; }
.cap-ship-ln.ok { color: #4ADE80; }
.cap-ship-ln.info { color: #7DD3FC; }
.cap-ship-cursor { color: #4ADE80; animation: pulse 0.8s infinite; }

.cap-gates { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.cap-gate { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 6px; font: 600 11px var(--font-mono); transition: all 0.3s; }
.cap-gate.pending { background: var(--bg-2); color: var(--fg-2); }
.cap-gate.pass { background: #F4FBF5; color: var(--theme-green); border: 1px solid rgba(49,162,76,0.3); }
.cap-gate .ico { font-size: 14px; }

.cap-diff { margin-top: 12px; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.cap-diff-head { padding: 7px 12px; background: var(--bg-2); font: 700 10.5px var(--font-mono); letter-spacing: 0.04em; color: var(--fg-1); border-bottom: 1px solid var(--border); }
.cap-diff-body { padding: 8px 12px; font: 500 10.5px var(--font-mono); background: #FAFBFC; }
.cap-diff-ln { padding: 2px 0; }
.cap-diff-ln.add { color: var(--theme-green); }
.cap-diff-foot { padding: 7px 12px; border-top: 1px solid var(--border); font: 500 10.5px var(--font-mono); color: var(--fg-2); background: var(--bg-2); }
.cap-diff-foot .pass { background: var(--theme-green); color: #fff; padding: 1px 7px; border-radius: 3px; font-weight: 800; letter-spacing: 0.04em; }

.cap-actions { display: flex; align-items: center; gap: 12px; padding-top: 12px; border-top: 1px solid var(--border); }
.cap-hint { font: 500 12px var(--font-mono); color: var(--fg-2); }
.cap-hint.ok { color: var(--theme-green); font-weight: 700; }
.cap-hint b { color: var(--fg-1); }

.btn-danger { background: #E41E3F; color: #fff; border-color: #E41E3F; }
.btn-danger:hover:not(:disabled) { background: #C7172E; }
.btn-lg { padding: 10px 20px; font-size: 14px; }

/* Responsive */
@media (max-width: 1100px) {
  .tm-layout { grid-template-columns: 1fr; }
  .pg-layout { grid-template-columns: 1fr; }
  .cap-panes { grid-template-columns: 1fr; }
  .cap-rail { grid-template-columns: 1fr; }
  .cap-rail-conn { display: none; }
  .readout-grid { grid-template-columns: repeat(2, 1fr); }
}


/* ==========================================================================
   Ch0 Stack sims — LayerCake · ByteTrace · SqlDecoderStage · ConnectorSwitcher
   ========================================================================== */

/* ---------- §1 Layer Cake ------------------------------------------------ */
.lc-wrap { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 24px; align-items: flex-start; margin: 0 0 20px; }
.lc-stack { display: flex; flex-direction: column; gap: 0; perspective: 1400px; transform-style: preserve-3d; }
.lc-slab {
  position: relative;
  padding: 14px 18px 12px;
  display: grid; grid-template-columns: 48px 1fr auto; column-gap: 14px; row-gap: 2px; align-items: center;
  border: 1.5px solid rgba(255,255,255,0.18);
  border-radius: 10px;
  color: #fff;
  cursor: default;
  transform: translateZ(0);
  transition: transform 260ms cubic-bezier(.2,.7,.2,1), box-shadow 260ms ease, filter 200ms ease;
  box-shadow: 0 2px 0 rgba(8,14,28,0.08);
  margin-bottom: -6px;
  clip-path: polygon(0 0, 100% 0, calc(100% - 18px) 100%, 18px 100%);
}
.lc-slab:first-child { clip-path: polygon(18px 0, calc(100% - 18px) 0, calc(100% - 18px) 100%, 18px 100%); margin-top: 0; border-radius: 12px 12px 8px 8px; }
.lc-slab:last-child { clip-path: polygon(18px 0, calc(100% - 18px) 0, 100% 100%, 0 100%); border-radius: 8px 8px 12px 12px; }
.lc-slab.on { transform: translateX(8px) translateZ(24px) scale(1.02); box-shadow: -8px 10px 30px -12px rgba(8,14,28,0.28); z-index: 50 !important; }
.lc-slab.pulse { box-shadow: 0 0 0 2px #fff, 0 0 24px rgba(8,102,255,0.6); }
.lc-slab.pulse.down { transform: translateX(-4px); }
.lc-slab.pulse.up { transform: translateX(4px); }
.lc-slab.broken { animation: lc-shake 420ms cubic-bezier(.36,.07,.19,.97) both; filter: grayscale(0.4) brightness(0.9); }
.lc-slab.impact { filter: grayscale(0.7) brightness(0.85) opacity(0.7); }
.lc-slab.fm { cursor: pointer; }
@keyframes lc-shake { 0%,100% { transform: translateX(0); } 20% { transform: translateX(-6px); } 40% { transform: translateX(6px); } 60% { transform: translateX(-3px); } 80% { transform: translateX(3px); } }

/* layer hues — warm (bottom) → cool (top) */
.lc-L7 { background: linear-gradient(180deg, #0A66FF, #084BD9); }
.lc-L6 { background: linear-gradient(180deg, #2E7DFF, #1A63E0); }
.lc-L5 { background: linear-gradient(180deg, #5B92FF, #3A73E8); }
.lc-L4 { background: linear-gradient(180deg, #7E9BD8, #5E7EBF); }
.lc-L3 { background: linear-gradient(180deg, #C69A6E, #A87D54); }
.lc-L2 { background: linear-gradient(180deg, #D47A4B, #B3603A); }
.lc-L1 { background: linear-gradient(180deg, #C9513B, #A33A2A); }

.lc-slab-num { font-family: var(--font-mono); font-size: 11px; font-weight: 800; letter-spacing: 0.12em; color: rgba(255,255,255,0.85); background: rgba(0,0,0,0.18); border-radius: 5px; padding: 3px 6px; text-align: center; grid-row: span 2; }
.lc-slab-name { font-size: 15.5px; font-weight: 700; letter-spacing: -0.01em; }
.lc-slab-sub { font-family: var(--font-mono); font-size: 11px; color: rgba(255,255,255,0.8); letter-spacing: 0.01em; grid-column: 2; }
.lc-slab-api { font-family: var(--font-mono); font-size: 10.5px; color: rgba(255,255,255,0.7); text-align: right; grid-row: span 2; letter-spacing: 0.01em; max-width: 220px; line-height: 1.4; }

.lc-pulse-dot { position: absolute; right: 22px; top: 50%; transform: translate(0, -50%); width: 10px; height: 10px; border-radius: 50%; background: #fff; box-shadow: 0 0 14px #fff, 0 0 28px rgba(255,255,255,0.6); }
.lc-x { position: absolute; right: 22px; top: 50%; transform: translateY(-50%); font-size: 22px; color: #fff; font-weight: 800; }

.lc-detail { position: sticky; top: 90px; }
.lc-detail-empty, .lc-detail-card { background: #fff; border: 1.5px solid var(--theme-gray-200); border-radius: 12px; padding: 20px 22px; min-height: 280px; }
.lc-detail-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 10px; background: var(--theme-gray-100); }
.lc-de-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--theme-blue); box-shadow: 0 0 16px rgba(8,102,255,0.4); }
.lc-de-lab { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-2); font-weight: 700; }
.lc-de-sub { font-size: 13px; color: var(--fg-strong); line-height: 1.5; max-width: 280px; }
.lc-dc-eyebrow { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--theme-blue); font-weight: 800; }
.lc-dc-title { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; color: var(--fg-1); margin: 4px 0 14px; }
.lc-dc-row { display: grid; grid-template-columns: 82px 1fr; gap: 12px; padding: 10px 0; border-top: 1px solid var(--theme-gray-200); font-size: 12.5px; }
.lc-dc-row:first-of-type { border-top: none; }
.lc-dc-k { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-2); font-weight: 700; padding-top: 1px; }
.lc-dc-v { color: var(--fg-strong); line-height: 1.5; font-family: var(--font-mono); font-size: 12px; }
.lc-dc-fail { margin-top: 14px; padding: 12px 14px; background: #FEF5F7; border: 1px solid rgba(228,30,63,0.25); border-radius: 8px; }
.lc-dc-fail-lab { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--theme-red); font-weight: 800; }
.lc-dc-fail-v { font-size: 13px; color: var(--fg-strong); margin-top: 6px; line-height: 1.5; }

.lc-ctrls { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; padding-top: 18px; border-top: 1px solid var(--theme-gray-200); }
.lc-fm { display: flex; flex-direction: column; gap: 2px; cursor: pointer; user-select: none; flex-direction: row; align-items: center; gap: 10px; }
.lc-fm input { accent-color: var(--theme-red); }
.lc-fm span:nth-child(2) { font-size: 12.5px; font-weight: 700; color: var(--fg-1); }
.lc-fm-sub { font-family: var(--font-mono); font-size: 11px; color: var(--fg-2); letter-spacing: 0.02em; font-weight: 500 !important; }

/* ---------- §2 Byte Trace ----------------------------------------------- */
.bt-rail-wrap { background: var(--theme-gray-100); border: 1px solid var(--theme-gray-200); border-radius: 12px; padding: 22px 14px; overflow-x: auto; }
.bt-rail { position: relative; display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 4px; }
.bt-rail::before {
  content: ''; position: absolute; left: 24px; right: 24px; top: 46px; height: 4px;
  background: var(--theme-gray-300); border-radius: 2px;
}
.bt-track { position: absolute; left: 24px; top: 46px; height: 4px; background: linear-gradient(90deg, var(--theme-blue), var(--theme-green)); border-radius: 2px; transition: width 60ms linear; box-shadow: 0 0 10px rgba(8,102,255,0.35); z-index: 1; }
.bt-particle { position: absolute; top: 40px; width: 16px; height: 16px; border-radius: 50%; background: var(--theme-blue); box-shadow: 0 0 14px var(--theme-blue), 0 0 30px rgba(8,102,255,0.5); z-index: 3; transition: left 60ms linear; }
.bt-particle::after { content: ''; position: absolute; inset: 4px; border-radius: 50%; background: #fff; }

.bt-stop { position: relative; padding-top: 62px; text-align: center; }
.bt-stop-num { position: absolute; top: 0; left: 50%; transform: translateX(-50%); font-family: var(--font-mono); font-size: 10px; font-weight: 800; letter-spacing: 0.08em; color: var(--fg-2); background: #fff; border: 1px solid var(--theme-gray-200); padding: 2px 6px; border-radius: 4px; }
.bt-stop-node { position: absolute; top: 36px; left: 50%; transform: translateX(-50%); width: 22px; height: 22px; border-radius: 50%; background: #fff; border: 2px solid var(--theme-gray-300); z-index: 2; transition: all 200ms ease; }
.bt-stop.done .bt-stop-node { background: var(--theme-green); border-color: var(--theme-green); }
.bt-stop.on .bt-stop-node { border-color: var(--theme-blue); box-shadow: 0 0 0 4px rgba(8,102,255,0.18); }
.bt-stop.skip.done .bt-stop-node { background: #F7B928; border-color: #F7B928; }
.bt-stop-name { font-size: 12px; font-weight: 700; color: var(--fg-1); letter-spacing: -0.01em; margin-top: 4px; }
.bt-stop-d { font-family: var(--font-mono); font-size: 10px; color: var(--fg-2); margin-top: 4px; line-height: 1.4; min-height: 28px; }
.bt-stop-lat { font-family: var(--font-mono); font-size: 11px; color: var(--fg-strong); font-weight: 700; margin-top: 4px; padding: 2px 6px; background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 4px; display: inline-block; }
.bt-stop.done .bt-stop-lat { background: #F4FBF5; border-color: var(--theme-green); color: var(--theme-green); }
.bt-strip-skip { position: absolute; top: -16px; left: 50%; transform: translateX(-50%); font-family: var(--font-mono); font-size: 9.5px; color: var(--fg-2); white-space: nowrap; background: #fff; padding: 2px 6px; border-radius: 3px; border: 1px solid var(--theme-gray-200); }
.bt-strip-skip s { color: #F7B928; font-weight: 700; }

.bt-readouts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 18px 0; }
.bt-ro { background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 10px; padding: 14px 16px; }
.bt-ro.warn { background: #FFFBF2; border-color: #F7B928; }
.bt-ro.good { background: #F4FBF5; border-color: var(--theme-green); }
.bt-ro-k { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2); font-weight: 700; }
.bt-ro-v { font-family: var(--font-mono); font-size: 24px; font-weight: 800; color: var(--fg-1); letter-spacing: -0.02em; margin-top: 8px; line-height: 1; font-variant-numeric: tabular-nums; }
.bt-ro-s { font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-2); margin-top: 6px; line-height: 1.4; }
.bt-ctrls { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; padding-top: 18px; border-top: 1px solid var(--theme-gray-200); }

/* ---------- §3 SQL Decoder + Stage Visualizer --------------------------- */
.sd-top { background: var(--theme-gray-100); border: 1px solid var(--theme-gray-200); border-radius: 12px; padding: 20px; margin-bottom: 18px; }
.sd-presets { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; align-items: center; }
.sd-preset { font: inherit; font-size: 12.5px; font-weight: 600; color: var(--fg-strong); background: #fff; border: 1.5px solid var(--theme-gray-200); padding: 8px 14px; border-radius: 8px; cursor: pointer; transition: var(--ease); }
.sd-preset:hover { border-color: var(--theme-gray-300); color: var(--fg-1); }
.sd-preset.on { background: var(--fg-1); color: #fff; border-color: var(--fg-1); }
.sd-plan { margin-left: auto; }

.sd-sql { background: #0F1729; border-radius: 10px; padding: 16px 20px; margin-bottom: 16px; }
.sd-sql-pre { margin: 0; font-family: var(--font-mono); font-size: 13.5px; color: #E8EAED; line-height: 1.6; white-space: pre-wrap; }

.sd-phases { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 14px; }
.sd-phase { background: #fff; border: 1.5px solid var(--theme-gray-200); border-radius: 8px; padding: 10px 12px; opacity: 0.45; transition: all 240ms ease; }
.sd-phase.on { opacity: 1; border-color: var(--theme-blue); background: #F3F8FF; }
.sd-phase.cur { box-shadow: 0 0 0 3px rgba(8,102,255,0.18); transform: translateY(-2px); }
.sd-phase-n { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--fg-2); font-weight: 800; }
.sd-phase-t { font-size: 13px; font-weight: 700; color: var(--fg-1); margin-top: 2px; letter-spacing: -0.01em; }
.sd-phase-s { font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-2); margin-top: 3px; letter-spacing: 0.02em; line-height: 1.35; }

.sd-plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.sd-plan-col { background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 10px; padding: 12px; opacity: 0.35; transition: opacity 240ms ease; min-height: 200px; }
.sd-plan-col.on { opacity: 1; }
.sd-pc-lab { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2); font-weight: 800; padding-bottom: 8px; border-bottom: 1px solid var(--theme-gray-200); margin-bottom: 10px; }

/* AST tree */
.sd-ast { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.sd-ast-root { font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: var(--theme-blue); background: #F3F8FF; border: 1px solid rgba(8,102,255,0.25); padding: 4px 10px; border-radius: 5px; }
.sd-ast-branch { display: flex; flex-direction: column; gap: 5px; position: relative; padding-top: 12px; }
.sd-ast-branch::before { content: ''; position: absolute; top: 0; left: 50%; width: 1.5px; height: 12px; background: var(--theme-gray-300); }
.sd-ast-leaf { font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-strong); background: var(--theme-gray-100); border: 1px solid var(--theme-gray-200); padding: 3px 8px; border-radius: 4px; text-align: center; }

/* Ops list */
.sd-ops { display: flex; flex-direction: column; gap: 4px; }
.sd-op { font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-1); padding: 5px 8px; background: var(--theme-gray-100); border-radius: 4px; border-left: 2px solid var(--theme-blue); line-height: 1.4; }
.sd-op.exch { border-left-color: #F7B928; background: #FFFBF2; color: #8B5C00; font-weight: 700; }
.sd-op.join { border-left-color: var(--theme-green); background: #F4FBF5; font-weight: 700; }

/* Stage boxes */
.sd-stages { display: flex; flex-direction: column; gap: 8px; }
.sd-stage { border-radius: 8px; padding: 8px 10px; color: #fff; }
.sd-b1 { background: linear-gradient(135deg, #2E7DFF, #0A66FF); }
.sd-b2 { background: linear-gradient(135deg, #31A24C, #1E7A39); }
.sd-b3 { background: linear-gradient(135deg, #8B55FF, #6B3FE0); }
.sd-stage-k { font-family: var(--font-mono); font-size: 10.5px; font-weight: 800; letter-spacing: 0.1em; color: rgba(255,255,255,0.85); }
.sd-stage-ops { display: flex; flex-direction: column; gap: 3px; margin-top: 4px; }
.sd-stage-op { font-family: var(--font-mono); font-size: 10.5px; background: rgba(255,255,255,0.18); padding: 2px 6px; border-radius: 3px; }
.sd-stage-exch { font-family: var(--font-mono); font-size: 9.5px; margin-top: 5px; color: rgba(255,255,255,0.85); letter-spacing: 0.02em; }

/* Stage visualizer (bottom) */
.sd-bot { background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 12px; padding: 18px; }
.sd-bot-head { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.sd-bot-lab { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-1); font-weight: 800; }
.sd-bot-meta { font-family: var(--font-mono); font-size: 11px; color: var(--fg-2); letter-spacing: 0.02em; }
.sd-bot-ctrls { margin-left: auto; display: flex; gap: 6px; }
.sv-btn { font: inherit; font-size: 11.5px; font-weight: 700; color: var(--fg-strong); background: #fff; border: 1.5px solid var(--theme-gray-200); padding: 6px 12px; border-radius: 6px; cursor: pointer; transition: var(--ease); }
.sv-btn:hover:not(:disabled) { border-color: var(--theme-gray-300); }
.sv-btn.on { background: var(--theme-red); color: #fff; border-color: var(--theme-red); }
.sv-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.sv-btn.on:last-child, .sd-bot-ctrls .sv-btn.on:last-child { background: var(--theme-green); border-color: var(--theme-green); }

.sd-cluster { display: grid; grid-template-columns: 120px 1fr; gap: 18px; align-items: center; padding: 18px 14px; background: var(--theme-gray-100); border-radius: 10px; margin-bottom: 16px; }
.sd-coord { text-align: center; }
.sd-coord-dot { width: 42px; height: 42px; border-radius: 50%; background: var(--fg-1); margin: 0 auto 6px; display: grid; place-items: center; color: #fff; font-family: var(--font-mono); font-size: 11px; font-weight: 800; }
.sd-coord-dot::before { content: 'C'; }
.sd-coord-lab { font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-2); font-weight: 700; letter-spacing: 0.06em; }
.sd-fan { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.sd-worker { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.sd-w-bar { width: 100%; height: 60px; background: #fff; border: 1.5px solid var(--theme-gray-200); border-radius: 6px; display: flex; align-items: flex-end; overflow: hidden; }
.sd-w-fill { width: 100%; background: linear-gradient(180deg, #5B92FF, var(--theme-blue)); transition: height 240ms ease, background 200ms ease; }
.sd-worker.go .sd-w-fill { background: linear-gradient(180deg, #5CC76F, var(--theme-green)); }
.sd-worker.hot { animation: sd-shake 380ms cubic-bezier(.36,.07,.19,.97) infinite; }
.sd-worker.hot .sd-w-fill { background: linear-gradient(180deg, #FF7A7A, var(--theme-red)); }
.sd-worker.idle .sd-w-fill { background: var(--theme-gray-300); }
.sd-w-lab { font-family: var(--font-mono); font-size: 10px; color: var(--fg-2); font-weight: 700; }
@keyframes sd-shake { 0%,100% { transform: translateX(0); } 25% { transform: translateX(-2px); } 75% { transform: translateX(2px); } }

.sd-gantt { padding-top: 12px; border-top: 1px solid var(--theme-gray-200); }
.sd-gantt-lab { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2); font-weight: 700; margin-bottom: 6px; }
.sd-gantt-track { position: relative; height: 28px; background: var(--theme-gray-100); border-radius: 6px; }
.sd-gantt-bar { position: absolute; top: 3px; bottom: 3px; border-radius: 4px; display: grid; place-items: center; font-family: var(--font-mono); font-size: 10px; font-weight: 800; color: #fff; letter-spacing: 0.08em; }
.sd-gantt-note { font-family: var(--font-mono); font-size: 11px; color: var(--fg-2); margin-top: 8px; line-height: 1.5; letter-spacing: 0.01em; }

/* ---------- §4 Connector Switcher --------------------------------------- */
.cs-wrap { }
.cs-sql { background: #0F1729; border-radius: 10px; padding: 14px 18px; margin-bottom: 16px; }
.cs-sql-q { font-family: var(--font-mono); font-size: 13.5px; color: #E8EAED; }
.cs-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.cs-tab { font: inherit; background: #fff; border: 1.5px solid var(--theme-gray-200); border-radius: 10px; padding: 14px 16px; cursor: pointer; text-align: left; display: flex; flex-direction: column; gap: 4px; transition: var(--ease); position: relative; }
.cs-tab:hover { border-color: var(--theme-gray-300); }
.cs-tab.on { border-color: var(--fg-1); background: var(--theme-gray-100); box-shadow: 0 0 0 3px rgba(8,14,28,0.08); }
.cs-tab-name { font-size: 15px; font-weight: 800; color: var(--fg-1); letter-spacing: -0.01em; }
.cs-tab-sub { font-family: var(--font-mono); font-size: 11px; color: var(--fg-2); }
.cs-tab-lat { font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; padding: 2px 7px; border-radius: 4px; align-self: flex-start; margin-top: 4px; }
.cs-c1 .cs-tab-lat { background: #FEF5F7; color: var(--theme-red); }
.cs-c2 .cs-tab-lat { background: #FFFBF2; color: #8B5C00; }
.cs-c3 .cs-tab-lat { background: #F4FBF5; color: var(--theme-green); }

.cs-panel { background: #fff; border: 1px solid var(--theme-gray-200); border-radius: 12px; padding: 20px; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 20px; }
.cs-diag { background: var(--theme-gray-100); border-radius: 10px; padding: 16px; min-height: 200px; display: flex; flex-direction: column; gap: 12px; }
.cs-diag-head { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2); font-weight: 800; }
.cs-diag-grid { display: grid; gap: 8px; flex: 1; }
.cs-fanout { grid-template-columns: repeat(3, 1fr); grid-template-rows: auto auto 1fr; }
.cs-fanout .coord { grid-column: 1 / -1; }
.cs-fanout .worker { grid-row: 2; }
.cs-fanout .cs-blob { grid-column: 1 / -1; grid-row: 3; align-self: end; }
.cs-local { grid-template-columns: repeat(4, 1fr); grid-template-rows: auto 1fr; }
.cs-local .coord { grid-column: 1 / -1; }
.cs-memo { grid-template-columns: 1fr; grid-template-rows: 1fr; place-items: center; }
.cs-node { background: #fff; border: 1.5px solid var(--theme-gray-200); border-radius: 6px; padding: 8px 10px; font-family: var(--font-mono); font-size: 11px; font-weight: 700; color: var(--fg-1); text-align: center; }
.cs-node.coord { background: var(--fg-1); color: #fff; border-color: var(--fg-1); }
.cs-node.worker { background: #F3F8FF; border-color: rgba(8,102,255,0.3); color: var(--theme-blue); }
.cs-node.worker.local { display: flex; flex-direction: column; gap: 3px; }
.cs-node-ssd { font-size: 9.5px; color: var(--theme-green); font-weight: 700; letter-spacing: 0.04em; }
.cs-node.big { padding: 22px 28px; font-size: 13px; }
.cs-node-lab { font-weight: 800; }
.cs-node-mem { font-family: var(--font-mono); font-size: 10.5px; color: var(--theme-blue); margin-top: 4px; font-weight: 700; }
.cs-blob { background: #fff; border: 1.5px dashed var(--theme-gray-300); border-radius: 6px; padding: 10px; text-align: center; font-family: var(--font-mono); font-size: 11px; color: var(--fg-2); font-weight: 700; letter-spacing: 0.04em; }

.cs-stats { display: flex; flex-direction: column; gap: 10px; }
.cs-stat { background: var(--theme-gray-100); border: 1px solid var(--theme-gray-200); border-radius: 8px; padding: 10px 14px; }
.cs-stat-k { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2); font-weight: 700; }
.cs-stat-v { font-family: var(--font-mono); font-size: 16px; font-weight: 800; color: var(--fg-1); margin-top: 4px; letter-spacing: -0.01em; font-variant-numeric: tabular-nums; }
.cs-note { grid-column: 1 / -1; padding: 14px 16px; background: #F3F8FF; border: 1px solid rgba(8,102,255,0.22); border-radius: 8px; font-size: 13px; color: var(--fg-strong); line-height: 1.55; }

@media (max-width: 1100px) {
  .lc-wrap { grid-template-columns: 1fr; }
  .lc-detail { position: static; }
  .sd-phases, .sd-plans { grid-template-columns: repeat(2, 1fr); }
  .cs-panel { grid-template-columns: 1fr; }
  .cs-tabs { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Ch10 · Capstone v3 — LIVING PIPELINE (animated, sabotage-driven)
   ========================================================================== */

.lp-wrap { margin-top: 28px; display: flex; flex-direction: column; gap: 28px; }

/* === STAGE DIAGRAM === */
.lp-stage {
  position: relative;
  background: #FAFAF6;
  border: 1.5px solid var(--theme-gray-200);
  border-radius: 12px;
  height: 480px;
  overflow: hidden;
}
.lp-bg-svg { position: absolute; inset: 0; width: 100%; height: 100%; }

.lp-dataset {
  position: absolute; bottom: 12px; left: 16px;
  display: flex; flex-direction: column; gap: 2px;
  z-index: 3;
  background: rgba(255,255,255,0.85);
  padding: 8px 12px;
  border: 1px solid var(--theme-gray-200);
  border-radius: 6px;
  backdrop-filter: blur(4px);
}
.lp-dataset .lp-d-eyebrow { font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--fg-2); }
.lp-dataset .lp-d-name code { font-family: var(--font-mono); font-size: 15px; font-weight: 800; color: var(--fg-1); letter-spacing: -0.01em; background: none; padding: 0; }
.lp-dataset .lp-d-sub { font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-2); letter-spacing: 0.01em; }

/* stage labels */
.lp-labels { position: absolute; inset: 0; pointer-events: none; }
.lp-label { position: absolute; transform: translateX(-50%); text-align: center; }
.lp-label-src, .lp-label-analyst {
  top: 4px;
  width: 86px;
}
.lp-label-src { transform: translateX(0); text-align: left; }
.lp-label-analyst { transform: translateX(-100%); text-align: right; }
.lp-label-src .lp-l-eyebrow,
.lp-label-analyst .lp-l-eyebrow {
  font-family: var(--font-mono); font-size: 9px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2); margin-bottom: 3px;
}
.lp-label-src .lp-l-title,
.lp-label-analyst .lp-l-title {
  font-family: var(--font-mono); font-size: 9.5px; font-weight: 700; color: var(--fg-1); line-height: 1.35;
  overflow-wrap: anywhere; word-break: break-word;
}

.lp-label-gate {
  top: 4px;
  width: 100px;
  display: flex; flex-direction: column; align-items: center; gap: 1px;
}
.lp-label-gate .lp-l-n {
  font-family: var(--font-mono); font-size: 9.5px; font-weight: 800;
  letter-spacing: 0.1em; color: var(--c); background: #fff;
  border: 1px solid var(--c); border-radius: 3px; padding: 1px 6px;
  margin-bottom: 2px;
}
.lp-label-gate .lp-l-title {
  font-family: var(--font-display); font-size: 12.5px; font-weight: 700; color: var(--fg-1); letter-spacing: -0.005em; line-height: 1.2;
}
.lp-label-gate .lp-l-ref {
  font-family: var(--font-mono); font-size: 9.5px; font-weight: 600; color: var(--fg-2); letter-spacing: 0.08em; text-transform: uppercase;
}
.lp-label-gate .lp-l-broken {
  font-family: var(--font-mono); font-size: 9.5px; font-weight: 800; color: #E41E3F;
  letter-spacing: 0.14em; margin-top: 4px;
  animation: lp-broken-blink 1.2s ease-in-out infinite;
}
.lp-label-gate.broken .lp-l-n { border-color: #E41E3F; color: #E41E3F; }
.lp-label-gate.broken .lp-l-title { color: #E41E3F; }
@keyframes lp-broken-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.45; } }

/* side label for the late side-table */
.lp-side-label {
  position: absolute; top: calc(78% + 2px);
  transform: translateX(0);
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; color: #B8770A;
  line-height: 1.4;
  pointer-events: none;
}
.lp-side-label .sub { font-size: 9.5px; font-weight: 500; color: var(--fg-2); font-style: italic; }

/* rows (HTML pooled) */
.lp-rows { position: absolute; inset: 0; pointer-events: none; z-index: 2; }
.lp-row {
  position: absolute;
  transform: translate(-50%, -50%);
  font-family: var(--font-mono); font-size: 9.5px; font-weight: 700;
  padding: 3px 7px;
  background: #fff;
  border: 1px solid var(--theme-gray-300);
  border-radius: 12px;
  color: var(--fg-1);
  white-space: nowrap;
  box-shadow: 0 1px 3px rgba(11,18,31,0.08);
  transition: left 120ms linear, top 260ms cubic-bezier(.3,.8,.3,1), background 220ms ease, border-color 220ms ease, opacity 260ms ease, transform 260ms ease;
}
.lp-row.lp-k-active { background: #F2FAF4; border-color: rgba(49,162,76,0.4); color: #0b3d1b; }
.lp-row.lp-k-retired { background: #FFF1F1; border-color: rgba(228,30,63,0.5); color: #7a0b1a; }
.lp-row.lp-k-retired::before { content: '×'; margin-right: 4px; color: #E41E3F; font-weight: 800; }
.lp-row.lp-k-new { background: #EEF3FF; border-color: rgba(45,125,255,0.45); color: #0b2a7a; }
.lp-row.lp-k-new::before { content: '+'; margin-right: 4px; color: #2D7DFF; font-weight: 800; }
.lp-row.lp-k-late { background: #FFF8EA; border-color: rgba(184,119,10,0.5); color: #5a3a05; }
.lp-row.lp-k-late::before { content: '~'; margin-right: 4px; color: #B8770A; font-weight: 800; }
.lp-row.lp-k-dup { background: #FDF2F8; border-color: rgba(228,30,63,0.3); color: #6a0e2c; }
.lp-row.lp-k-dup::before { content: '='; margin-right: 4px; color: #E41E3F; font-weight: 800; }

.lp-row.lp-drop { opacity: 0; transform: translate(-50%, -10%) scale(0.6); }
.lp-row.lp-spill { opacity: 0.8; }
.lp-row.lp-dqhold { animation: lp-shake 0.6s ease-in-out infinite; border-color: #E41E3F; background: #FFF1F1; }
@keyframes lp-shake { 0%,100% { transform: translate(-50%, -50%); } 50% { transform: translate(-48%, -50%); } }
.lp-row.lp-govblock { background: #FFF1F1; border-color: #E41E3F; color: #E41E3F; opacity: 0; transform: translate(-50%, -50%) scale(0.8); }
.lp-row.lp-arrived { background: var(--fg-1); color: #fff; border-color: var(--fg-1); transform: translate(-50%, -50%) scale(1.08); }
.lp-row.lp-halluc { background: #FDF2F8; border-color: #E41E3F; color: #E41E3F; animation: lp-halluc-pulse 0.6s ease-in-out infinite; }
@keyframes lp-halluc-pulse { 0%, 100% { opacity: 0.6; } 50% { opacity: 1; } }
.lp-row.lp-phantom { opacity: 0.42; border-style: dashed; }
.lp-row.lp-silentbad { border-color: #E41E3F; border-style: dashed; }

/* per-gate live numbers */
.lp-gate-stats { position: absolute; top: 66%; left: 0; right: 0; pointer-events: none; height: 56px; }
.lp-gs {
  position: absolute; transform: translateX(-50%); top: 4px;
  display: flex; flex-direction: column; align-items: center; gap: 1px;
  font-family: var(--font-mono);
}
.lp-gs .n { font-size: 17px; font-weight: 800; color: var(--fg-1); letter-spacing: -0.01em; font-variant-numeric: tabular-nums; }
.lp-gs .lab { font-size: 9.5px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-2); }
.lp-gs .sub { font-size: 9.5px; color: var(--fg-2); margin-top: 1px; }
.lp-gs .bad { font-size: 9.5px; color: #E41E3F; font-weight: 700; margin-top: 1px; letter-spacing: 0.04em; }

/* === SABOTAGE CONSOLE === */
.lp-console {
  background: #fff;
  border: 1.5px solid var(--theme-gray-200);
  border-radius: 12px;
  padding: 20px 22px;
}
.lp-console-head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 16px; gap: 16px; }
.lp-console-eyebrow { font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; color: var(--fg-2); letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: 4px; }
.lp-console-title { font-family: var(--font-display); font-size: 20px; font-weight: 700; color: var(--fg-1); letter-spacing: -0.02em; }
.lp-console-actions { display: flex; gap: 8px; }

.lp-break-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }

.lp-break {
  font: inherit; text-align: left; cursor: pointer;
  background: #FAFAF6; border: 1.5px solid var(--theme-gray-200); border-radius: 10px;
  padding: 14px 14px 12px; position: relative;
  transition: var(--ease);
  border-left: 4px solid var(--c);
  display: flex; flex-direction: column; gap: 8px;
}
.lp-break:hover:not(.on) { border-color: var(--c); background: #fff; }
.lp-break.on { background: #FFF1F1; border-color: #E41E3F; border-left-color: #E41E3F; }
.lp-break.on .lp-break-good { opacity: 0.4; text-decoration: line-through; }

.lp-break-head { display: flex; align-items: center; gap: 8px; }
.lp-break-head .n { font-family: var(--font-mono); font-size: 10.5px; font-weight: 800; color: var(--c); letter-spacing: 0.1em; background: #fff; border: 1px solid var(--c); border-radius: 3px; padding: 1px 6px; }
.lp-break.on .lp-break-head .n { color: #E41E3F; border-color: #E41E3F; }
.lp-break-head .title { font-family: var(--font-display); font-size: 13.5px; font-weight: 700; color: var(--fg-1); letter-spacing: -0.01em; flex: 1; }
.lp-break-head .pill { font-family: var(--font-mono); font-size: 9.5px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; padding: 2px 7px; border-radius: 3px; background: #F2FAF4; color: var(--theme-green); border: 1px solid rgba(49,162,76,0.3); }
.lp-break-head .pill.on { background: #E41E3F; color: #fff; border-color: #E41E3F; }

.lp-break-good, .lp-break-bad { font-family: var(--font-mono); font-size: 11px; line-height: 1.55; color: var(--fg-strong); }
.lp-break-good b, .lp-break-bad b { font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; font-size: 10px; }
.lp-break-good b { color: var(--theme-green); }
.lp-break-bad b { color: #E41E3F; }

.lp-break-code { margin-top: 2px; font-family: var(--font-mono); font-size: 11px; background: var(--theme-gray-100); padding: 5px 8px; border-radius: 4px; color: var(--fg-1); font-weight: 600; }
.lp-break.on .lp-break-code { background: #fff; border: 1px dashed #E41E3F; color: #E41E3F; }

/* === SIGNAL + AGENT === */
.lp-downstream { display: grid; grid-template-columns: 1fr 1.2fr; gap: 20px; }

.lp-signal {
  background: #fff;
  border: 1.5px solid var(--theme-gray-200);
  border-radius: 12px;
  overflow: hidden;
}
.lp-signal-head {
  padding: 12px 16px;
  display: flex; justify-content: space-between; align-items: center;
  border-bottom: 1px solid var(--theme-gray-200); background: var(--theme-gray-100);
}
.lp-signal-head .l-k { font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2); }
.lp-signal-head .l-v code { font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: var(--fg-1); background: none; }
.lp-signal-body {
  padding: 22px 18px;
  display: flex; gap: 16px; align-items: center; min-height: 120px;
}
.lp-signal-body.off { background: #FFF1F1; }
.lp-signal-body.on { background: #F2FAF4; }
.lp-pulse {
  position: relative; width: 48px; height: 48px; flex-shrink: 0;
}
.lp-pulse span {
  position: absolute; inset: 0; margin: auto;
  width: 16px; height: 16px; border-radius: 50%; background: var(--theme-green);
  animation: lp-pulse-ring 1.6s ease-out infinite;
}
.lp-pulse .d1 { animation-delay: 0s; }
.lp-pulse .d2 { animation-delay: 0.4s; }
.lp-pulse .d3 { animation-delay: 0.8s; }
@keyframes lp-pulse-ring {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(2.6); opacity: 0; }
}
.lp-pulse::after {
  content: ''; position: absolute; inset: 0; margin: auto;
  width: 16px; height: 16px; border-radius: 50%; background: var(--theme-green);
  box-shadow: 0 0 14px rgba(49,162,76,0.45);
}
.lp-pulse-off { width: 48px; height: 48px; flex-shrink: 0; border: 2px dashed #E41E3F; border-radius: 50%; display: grid; place-items: center; font-family: var(--font-mono); font-size: 22px; color: #E41E3F; font-weight: 800; }

.lp-sig-lab { font-family: var(--font-mono); font-size: 13px; font-weight: 800; color: var(--theme-green); letter-spacing: 0.01em; }
.lp-sig-lab.lp-sig-off { color: #E41E3F; }
.lp-sig-sub { font-family: var(--font-mono); font-size: 11.5px; color: var(--fg-2); margin-top: 3px; line-height: 1.5; }

/* agent panel */
/* === Consumer dashboard panel (replaces .lp-agent — agent removed v13) === */
.lp-consumer {
  background: #fff;
  border: 1.5px solid var(--theme-gray-200);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.lp-consumer-head {
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  border-bottom: 1px solid var(--theme-gray-200);
  background: var(--theme-gray-50);
  min-width: 0;
}
.lp-consumer-eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-2);
  margin-bottom: 4px;
}
.lp-consumer-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.012em;
  color: var(--fg-1);
  line-height: 1.2;
}
.lp-consumer-src {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-2);
  background: rgba(0,0,0,0.04);
  padding: 3px 7px;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 50%;
}
.lp-consumer-body {
  padding: 22px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  min-height: 140px;
  justify-content: center;
  transition: background 320ms var(--ease-pro);
  animation: lp-fade-up 500ms cubic-bezier(0.32, 0.72, 0, 1);
}
@keyframes lp-fade-up { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.lp-consumer-v {
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1;
  color: var(--fg-1);
  font-variant-numeric: tabular-nums;
}
.lp-consumer-cap {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-strong);
  line-height: 1.5;
  word-break: normal;
  overflow-wrap: anywhere;
}
.lp-consumer-warn { font-weight: 700; }
.lp-consumer-good { background: #F2FAF4; border-top: 2px solid var(--theme-green); }
.lp-consumer-good .lp-consumer-v { color: #0b3d1b; }
.lp-consumer-bad { background: #FFF8EA; border-top: 2px solid #B8770A; }
.lp-consumer-bad .lp-consumer-v { color: #B8770A; }
.lp-consumer-bad .lp-consumer-warn { color: #B8770A; }
.lp-consumer-wait { background: #FFFBF2; border-top: 2px solid #F7B928; }
.lp-consumer-wait .lp-consumer-v { color: #8B5C00; font-size: 32px; }
.lp-consumer-wait .lp-consumer-warn { color: #8B5C00; }
.lp-consumer-err { background: #FFF1F1; border-top: 2px solid #E41E3F; }
.lp-consumer-err .lp-consumer-v { color: #E41E3F; font-family: var(--font-mono); font-size: 24px; font-weight: 800; letter-spacing: 0.04em; }
.lp-consumer-err .lp-consumer-warn { color: #E41E3F; }

@media (max-width: 1000px) {
  .lp-stage { height: 420px; }
  .lp-break-grid { grid-template-columns: repeat(2, 1fr); }
  .lp-downstream { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .lp-break-grid { grid-template-columns: 1fr; }
  .lp-label-gate { width: 90px; }
  .lp-stage { height: 380px; }
}

/* ==========================================================================
   Ch10 · Capstone v2 — annotated artifacts + run trace  (LEGACY — unused)
   ========================================================================== */

.cap2-moments { display: flex; flex-direction: column; gap: 40px; margin-top: 32px; }

.cap2-moment { display: grid; grid-template-columns: 170px 1fr; gap: 28px; align-items: start; }
.cap2-moment.right { grid-template-columns: 1fr 170px; }
.cap2-moment.right .cap2-m-meta { order: 2; text-align: right; }
.cap2-moment.right .cap2-m-card { order: 1; }
.cap2-moment.right .cap2-m-oneline { grid-column: 1 / -1; order: 3; text-align: right; }
.cap2-moment.left .cap2-m-oneline { grid-column: 2 / 3; }

.cap2-m-meta { position: sticky; top: 20px; align-self: start; }
.cap2-m-num { font-family: var(--font-mono); font-size: 48px; font-weight: 800; color: var(--fg-1); letter-spacing: -0.03em; line-height: 0.9; font-variant-numeric: tabular-nums; }
.cap2-m-ref { font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; color: var(--fg-2); letter-spacing: 0.14em; text-transform: uppercase; margin-top: 6px; }
.cap2-m-lens { display: inline-block; margin-top: 10px; padding: 3px 10px; background: var(--theme-gray-100); border: 1px solid var(--theme-gray-200); border-radius: 3px; font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; color: var(--fg-1); letter-spacing: 0.06em; text-transform: uppercase; }

.cap2-m-card { background: #FAFAF6; border: 1.5px solid var(--theme-gray-200); border-radius: 10px; overflow: hidden; }
.cap2-m-card-head { background: #F3F3EE; border-bottom: 1px solid var(--theme-gray-200); padding: 9px 16px; display: flex; justify-content: space-between; align-items: center; }
.cap2-m-file { font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: var(--fg-1); }
.cap2-m-kind { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-2); font-weight: 700; }
.cap2-m-code { padding: 14px 0; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.7; }

.cap2-line { display: grid; grid-template-columns: 38px 1fr; padding: 0 16px 0 0; transition: background 120ms ease; }
.cap2-line.hi { background: rgba(255,180,84,0.14); }
.cap2-ln-n { text-align: right; padding-right: 14px; color: var(--ink-faint); font-size: 11px; user-select: none; font-variant-numeric: tabular-nums; border-right: 1px solid var(--theme-gray-200); margin-right: 10px; }
.cap2-ln-v { color: var(--fg-1); white-space: pre; }

.cap2-m-code .tok-k { color: #7C3AED; font-weight: 700; }
.cap2-m-code .tok-s { color: #B8530E; }
.cap2-m-code .tok-f { color: #0F5FCB; font-weight: 700; }
.cap2-m-code .tok-c { color: #7A8A75; font-style: italic; }
.cap2-m-code .cap-hot { color: var(--fg-1); font-weight: 800; background: rgba(255,180,84,0.22); padding: 1px 4px; border-radius: 3px; }

.cap2-m-anno { padding: 10px 16px 14px; background: #FFF8EA; border-top: 1px solid rgba(204,145,27,0.2); display: flex; gap: 14px; align-items: baseline; }
.cap2-m-anno-ln { font-family: var(--font-mono); font-size: 11px; font-weight: 700; color: #B8770A; white-space: nowrap; letter-spacing: 0.04em; }
.cap2-m-anno-tx { font-size: 13.5px; color: var(--fg-1); line-height: 1.5; }

.cap2-m-oneline { font-family: var(--font-display); font-size: 16px; font-weight: 500; color: var(--fg-2); line-height: 1.45; font-style: italic; margin-top: -6px; }

/* --- run trace --- */

.cap2-run { margin-top: 36px; background: #FAFAF6; border: 1.5px solid var(--theme-gray-200); border-radius: 12px; padding: 28px; }
.cap2-run-head { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 24px; }
.cap2-run-eyebrow { font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; color: var(--fg-2); letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 5px; }
.cap2-run-title { font-family: var(--font-display); font-size: 22px; font-weight: 500; color: var(--fg-1); letter-spacing: -0.01em; }
.cap2-run-title b { font-weight: 700; color: var(--fg-1); font-family: var(--font-mono); font-size: 18px; background: var(--theme-gray-100); padding: 1px 7px; border-radius: 4px; letter-spacing: 0; }
.cap2-run-actions { display: flex; gap: 10px; }

.cap2-trace { display: flex; flex-direction: column; border: 1px solid var(--theme-gray-200); border-radius: 8px; background: #fff; overflow: hidden; }
.cap2-trace-row { display: grid; grid-template-columns: 48px 1fr 72px 48px; gap: 14px; padding: 14px 16px; border-bottom: 1px solid var(--theme-gray-100); align-items: center; opacity: 0.45; transition: opacity 220ms ease, background 220ms ease; }
.cap2-trace-row:last-child { border-bottom: none; }
.cap2-trace-row.past { opacity: 1; }
.cap2-trace-row.active { background: #FFF8EA; }
.cap2-trace-row.done { background: #F2FAF4; }
.cap2-trace-n { font-family: var(--font-mono); font-size: 14px; font-weight: 800; color: var(--fg-1); letter-spacing: -0.01em; font-variant-numeric: tabular-nums; }
.cap2-trace-k-title { font-family: var(--font-mono); font-size: 12px; font-weight: 800; color: var(--fg-1); letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 2px; }
.cap2-trace-k-detail { font-family: var(--font-mono); font-size: 12px; color: var(--fg-2); line-height: 1.5; }
.cap2-trace-k-detail.pending { color: var(--ink-faint); font-style: italic; }
.cap2-trace-t { font-family: var(--font-mono); font-size: 12px; color: var(--fg-2); text-align: right; font-variant-numeric: tabular-nums; }
.cap2-trace-mark { text-align: center; font-family: var(--font-mono); font-size: 15px; }
.cap2-trace-check { color: var(--theme-green); font-weight: 800; }
.cap2-trace-spin { color: #B8770A; animation: capspin 900ms linear infinite; display: inline-block; }
.cap2-trace-dot { color: var(--theme-gray-300); }
@keyframes capspin { 0% { transform: rotate(0); } 100% { transform: rotate(360deg); } }

.cap2-signal { margin-top: 18px; padding: 14px 18px; background: #F2FAF4; border: 1px solid rgba(49,162,76,0.25); border-radius: 8px; display: flex; align-items: center; gap: 14px; position: relative; }
.cap2-signal-pulse { width: 12px; height: 12px; border-radius: 50%; background: var(--theme-green); box-shadow: 0 0 0 0 rgba(49,162,76,0.7); animation: capsignalpulse 1.6s ease-out infinite; }
@keyframes capsignalpulse { 0% { box-shadow: 0 0 0 0 rgba(49,162,76,0.5); } 100% { box-shadow: 0 0 0 16px rgba(49,162,76,0); } }
.cap2-signal-lab { font-family: var(--font-mono); font-size: 13px; color: var(--fg-1); font-weight: 700; }
.cap2-signal-lab b { font-weight: 800; }
.cap2-signal-sub { font-family: var(--font-mono); font-size: 11.5px; color: var(--fg-2); margin-left: auto; }

.cap2-answer { margin-top: 22px; background: #fff; border: 1.5px solid var(--fg-1); border-radius: 10px; overflow: hidden; animation: capfade 600ms ease both; }
@keyframes capfade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.cap2-answer-head { background: var(--fg-1); color: #fff; padding: 10px 16px; font-family: var(--font-mono); font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }
.cap2-answer-q { padding: 20px 22px 14px; border-bottom: 1px dashed var(--theme-gray-200); }
.cap2-answer-q .lab { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2); font-weight: 700; margin-bottom: 6px; }
.cap2-answer-q .q { font-family: var(--font-display); font-size: 22px; font-weight: 500; color: var(--fg-1); letter-spacing: -0.01em; font-style: italic; }
.cap2-answer-resolve { padding: 14px 22px; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.9; color: var(--fg-2); background: var(--theme-gray-100); border-bottom: 1px solid var(--theme-gray-200); }
.cap2-answer-resolve code { font-family: var(--font-mono); font-size: 12.5px; background: rgba(255,180,84,0.18); padding: 1px 5px; border-radius: 3px; color: var(--fg-1); font-weight: 700; }
.cap2-answer-a { display: grid; grid-template-columns: auto 1fr; gap: 24px; padding: 22px; align-items: center; border-bottom: 1px dashed var(--theme-gray-200); }
.cap2-answer-a .val { font-family: var(--font-display); font-size: 72px; font-weight: 700; color: var(--fg-1); letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.cap2-answer-a .val .pct { font-size: 36px; color: var(--fg-2); margin-left: 4px; font-weight: 500; }
.cap2-answer-a .src { font-family: var(--font-mono); font-size: 12px; color: var(--fg-2); line-height: 1.7; }
.cap2-answer-a .src code { background: var(--theme-gray-100); padding: 1px 5px; border-radius: 3px; }
.cap2-answer-foot { padding: 14px 22px; background: #FFF8EA; font-family: var(--font-display); font-size: 15px; color: var(--fg-1); font-style: italic; text-align: center; }

@media (max-width: 900px) {
  .cap2-moment, .cap2-moment.right { grid-template-columns: 1fr; gap: 14px; }
  .cap2-moment.right .cap2-m-meta { text-align: left; order: 1; }
  .cap2-moment.right .cap2-m-card { order: 2; }
  .cap2-m-meta { position: static; }
  .cap2-m-num { font-size: 36px; }
  .cap2-run-head { flex-direction: column; align-items: flex-start; }
  .cap2-answer-a { grid-template-columns: 1fr; text-align: center; }
}


/* ===== Overview chapter =================================================== */
.ov-map {
  background: #fff;
  border: 1px solid var(--theme-gray-200);
  border-radius: 14px;
  padding: 18px 10px 12px;
  margin-top: 14px;
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(15,23,42,0.02), 0 8px 32px -16px rgba(15,23,42,0.06);
}
.ov-svg { width: 100%; height: auto; display: block; }
.ov-endpoint {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  fill: var(--fg-2);
}
.ov-node-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
  fill: var(--fg-1);
}
.ov-node-tag {
  font-size: 10.5px;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  fill: var(--fg-2);
}
.ov-node { transition: transform 0.2s ease; }
.ov-node:hover { transform: scale(1.04); transform-origin: center; transform-box: fill-box; }

.ov-detail {
  margin-top: 14px;
  background: #fff;
  border: 1px solid var(--theme-gray-200);
  border-radius: 12px;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ov-detail-head { display: flex; align-items: center; gap: 14px; }
.ov-detail-n {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #fff;
  padding: 5px 10px;
  border-radius: 6px;
}
.ov-detail-title { font-size: 22px; font-weight: 700; letter-spacing: -0.015em; color: var(--fg-1); line-height: 1.1; }
.ov-detail-tag { font-family: var(--font-mono); font-size: 11.5px; color: var(--fg-2); letter-spacing: 0.02em; margin-top: 2px; }
.ov-detail-body { font-size: 15px; line-height: 1.62; color: var(--fg-strong); max-width: 760px; }
.ov-detail-body code { background: var(--theme-gray-100); padding: 1px 5px; border-radius: 3px; font-size: 13px; font-family: var(--font-mono); }

.ov-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  margin-top: 14px;
}
@media (max-width: 1200px) { .ov-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px) { .ov-grid { grid-template-columns: repeat(2, 1fr); } }
.ov-card {
  background: #fff;
  border: 1px solid var(--theme-gray-200);
  border-radius: 10px;
  padding: 14px 14px 14px;
  cursor: pointer;
  position: relative;
  transition: all 0.18s ease;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 120px;
}
.ov-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 10px;
  border: 2px solid var(--card-hex, var(--theme-blue));
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
}
.ov-card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px -12px rgba(15,23,42,0.12); }
.ov-card:hover::before { opacity: 1; }
.ov-card-n {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--card-hex);
  margin-bottom: 2px;
}
.ov-card-icon { margin: 2px 0 6px; }
.ov-card-title { font-size: 15px; font-weight: 700; letter-spacing: -0.01em; color: var(--fg-1); }
.ov-card-tag { font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-2); letter-spacing: 0.02em; margin-top: 2px; }
.ov-card-arrow {
  position: absolute;
  top: 12px;
  right: 14px;
  font-size: 14px;
  color: var(--fg-2);
  opacity: 0;
  transition: all 0.18s ease;
}
.ov-card:hover .ov-card-arrow { opacity: 1; color: var(--card-hex); transform: translateX(2px); }

.ov-howto {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 14px;
}
@media (max-width: 900px) { .ov-howto { grid-template-columns: 1fr; } }
.ov-howto-item {
  background: #fff;
  border: 1px solid var(--theme-gray-200);
  border-radius: 10px;
  padding: 18px 20px;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 14px;
  align-items: start;
}
.ov-howto-n {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--theme-blue-50);
  color: var(--theme-blue);
  font-family: var(--font-mono);
  font-weight: 800;
  display: grid; place-items: center;
  font-size: 14px;
}
.ov-howto-h { font-size: 15px; font-weight: 700; color: var(--fg-1); letter-spacing: -0.005em; }
.ov-howto-b { font-size: 13.5px; line-height: 1.6; color: var(--fg-strong); margin-top: 4px; }
.ov-howto-b code { background: var(--theme-gray-100); padding: 1px 5px; border-radius: 3px; font-size: 12px; font-family: var(--font-mono); }
.ov-howto-b .kbd {
  display: inline-block;
  background: var(--theme-gray-100);
  border: 1px solid var(--theme-gray-300);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--fg-1);
}


/* ===== Promotional Overview (v6) ======================================= */
.ov-hero {
  margin-top: 10px;
  margin-bottom: 36px;
  padding: 56px 0 48px;
  border-bottom: 1px solid var(--theme-gray-200);
}
.ov-hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-2);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}
.ov-hero-tag {
  background: var(--theme-blue);
  color: #fff;
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: 0.1em;
}
.ov-hero-dot { color: var(--theme-gray-300); font-weight: 400; }
.ov-hero-title {
  font-family: var(--font-display);
  font-size: clamp(52px, 6.6vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.03em;
  font-weight: 800;
  color: var(--fg-1);
  margin: 0 0 22px;
  max-width: 12ch;
}
.ov-hero-title em {
  font-style: normal;
  color: var(--theme-blue);
  background: linear-gradient(180deg, transparent 62%, var(--theme-blue-50) 62%);
  padding: 0 4px;
}
.ov-hero-sub {
  font-size: 19px;
  line-height: 1.55;
  color: var(--fg-strong);
  max-width: 66ch;
  margin: 0 0 28px;
}
.ov-hero-sub b { color: var(--fg-1); font-weight: 700; }
.ov-hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 48px; }
.ov-hero-btn { font-size: 15px; padding: 13px 22px; font-weight: 700; letter-spacing: -0.01em; }
.ov-hero-btn-ghost {
  font-size: 15px; padding: 13px 20px;
  background: transparent; color: var(--fg-1);
  border: 1.5px solid var(--theme-gray-300);
  border-radius: 8px; cursor: pointer; font-weight: 600;
  font-family: var(--font-body);
  transition: var(--ease);
}
.ov-hero-btn-ghost:hover { border-color: var(--fg-1); background: var(--bg-hover); }

.ov-stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
  background: var(--theme-gray-200);
  border: 1px solid var(--theme-gray-200);
  border-radius: 12px;
  overflow: hidden;
}
@media (max-width: 900px) { .ov-stats { grid-template-columns: repeat(2, 1fr); } }
.ov-stat {
  background: #fff;
  padding: 20px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.ov-stat-n {
  font-family: var(--font-display);
  font-size: 44px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--fg-1);
}
.ov-stat-n span {
  font-size: 16px;
  font-weight: 600;
  color: var(--fg-2);
  margin-left: 2px;
  letter-spacing: 0;
}
.ov-stat-l {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
}

/* Section heads */
.ov-section-head {
  margin: 64px 0 20px;
}
.ov-section-head.ov-sh-tight { margin-top: 56px; }
.ov-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--theme-blue);
  margin-bottom: 10px;
}
.ov-h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.2vw, 44px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--fg-1);
  margin: 0 0 10px;
  max-width: 24ch;
}
.ov-h2 em {
  font-style: normal; color: var(--theme-blue);
}
.ov-lede {
  font-size: 16px;
  line-height: 1.55;
  color: var(--fg-2);
  max-width: 60ch;
  margin: 0;
}

/* Outcomes */
.ov-outcomes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 18px;
}
@media (max-width: 900px) { .ov-outcomes { grid-template-columns: 1fr; } }
.ov-out {
  background: #fff;
  border: 1px solid var(--theme-gray-200);
  border-radius: 12px;
  padding: 24px 26px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
  transition: var(--ease);
}
.ov-out:hover { border-color: var(--theme-blue); box-shadow: 0 12px 32px -20px rgba(29,113,235,0.28); }
.ov-out-n {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--theme-blue);
}
.ov-out-h {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--fg-1);
  line-height: 1.2;
  margin: 2px 0 6px;
}
.ov-out-h em { font-style: italic; color: var(--theme-blue); font-weight: 700; }
.ov-out-b {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--fg-strong);
}
.ov-out-b code { background: var(--theme-gray-100); padding: 1px 5px; border-radius: 3px; font-size: 12.5px; font-family: var(--font-mono); }

/* Curriculum cards */
.ov-curriculum {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 18px;
}
@media (max-width: 1100px) { .ov-curriculum { grid-template-columns: 1fr; } }
.ov-course {
  all: unset;
  cursor: pointer;
  background: #fff;
  border: 1px solid var(--theme-gray-200);
  border-radius: 12px;
  display: grid;
  grid-template-columns: 6px 1fr;
  overflow: hidden;
  transition: var(--ease);
  font-family: var(--font-body);
}
.ov-course:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 44px -24px rgba(15,23,42,0.18);
  border-color: var(--card-hex);
}
.ov-course:focus-visible { outline: 2px solid var(--card-hex); outline-offset: 2px; }
.ov-course-rail { width: 6px; }
.ov-course-body { padding: 20px 22px 18px; display: flex; flex-direction: column; gap: 4px; }
.ov-course-n {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--card-hex);
  text-transform: uppercase;
}
.ov-course-title {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--fg-1);
  margin-top: 2px;
}
.ov-course-tag {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--fg-2);
  letter-spacing: 0.02em;
  margin-bottom: 8px;
}
.ov-course-body-text {
  font-size: 14px;
  line-height: 1.55;
  color: var(--fg-strong);
  margin-top: 4px;
}
.ov-course-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--theme-gray-200);
}
.ov-course-icon { opacity: 0.8; }
.ov-course-cta {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--card-hex);
}
.ov-course:hover .ov-course-cta { letter-spacing: 0.06em; }

/* Tools strip */
.ov-tools {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--theme-gray-200);
  border: 1px solid var(--theme-gray-200);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 18px;
}
@media (max-width: 900px) { .ov-tools { grid-template-columns: repeat(2, 1fr); } }
.ov-tool {
  background: #fff;
  padding: 18px 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: var(--ease);
}
.ov-tool:hover { background: var(--theme-blue-50); }
.ov-tool-n {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--fg-1);
}
.ov-tool-r {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-2);
  letter-spacing: 0.02em;
}

/* Closing CTA band */
.ov-cta-band {
  margin: 56px 0 40px;
  padding: 48px 48px 44px;
  background: #0A1220;
  border-radius: 16px;
  color: #E8EAED;
  position: relative;
  overflow: hidden;
}
.ov-cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(80% 120% at 85% 10%, rgba(29,113,235,0.32), transparent 55%),
              radial-gradient(60% 100% at 15% 100%, rgba(124,92,255,0.20), transparent 60%);
  pointer-events: none;
}
.ov-cta-band > * { position: relative; }
.ov-cta-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 700;
  color: #7FB5FF;
  margin-bottom: 10px;
}
.ov-cta-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.6vw, 46px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: #fff;
  max-width: 22ch;
  margin-bottom: 14px;
}
.ov-cta-sub {
  font-size: 16px;
  line-height: 1.55;
  color: rgba(232,234,237,0.78);
  max-width: 60ch;
  margin-bottom: 28px;
}
.ov-cta-sub code {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  color: #B8D4FF;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 13px;
  font-family: var(--font-mono);
}
.ov-cta-btn {
  font-size: 16px;
  padding: 14px 24px;
  font-weight: 700;
}
.ov-cta-row { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.ov-cta-ghost {
  background: transparent;
  border: none;
  color: #B8D4FF;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  font-weight: 600;
  cursor: pointer;
  padding: 10px 4px;
  transition: color 0.15s ease;
}
.ov-cta-ghost:hover { color: #fff; }

/* ===== Overview v7 — tight hero + horizontal pipeline =================== */
.ov2-hero {
  padding: 28px 0 26px;
  border-bottom: 1px solid var(--theme-gray-200);
  margin-bottom: 26px;
}
.ov2-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--fg-2);
  margin-bottom: 14px;
}
.ov2-pill {
  background: var(--fg-1); color: #fff;
  padding: 3px 9px; border-radius: 999px;
  letter-spacing: 0.1em; font-size: 10.5px;
}
.ov2-dot { color: var(--theme-gray-300); font-weight: 400; }
.ov2-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  line-height: 0.98;
  letter-spacing: -0.03em;
  font-weight: 800;
  color: var(--fg-1);
  margin: 0 0 14px;
  max-width: 16ch;
}
.ov2-title em {
  font-style: normal;
  background: linear-gradient(120deg, #2D7DFF, #7C5CFF 60%, #22D3EE);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.ov2-sub {
  font-size: 16px; line-height: 1.55;
  color: var(--fg-strong); max-width: 66ch;
  margin: 0 0 20px;
}
.ov2-sub b { color: var(--fg-1); font-weight: 700; }
.ov2-cta { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.ov2-btn-primary { font-size: 14.5px; padding: 11px 18px; font-weight: 700; letter-spacing: -0.005em; }
.ov2-btn-ghost {
  font-family: var(--font-body);
  font-size: 14px; padding: 11px 16px;
  background: transparent; color: var(--fg-1);
  border: 1.5px solid var(--theme-gray-300);
  border-radius: 8px; cursor: pointer; font-weight: 600;
  transition: var(--ease);
}
.ov2-btn-ghost:hover { border-color: var(--fg-1); background: var(--bg-hover); }
.ov2-meta {
  font-family: var(--font-mono); font-size: 11.5px; color: var(--fg-2);
  letter-spacing: 0.02em; display: inline-flex; align-items: center; gap: 8px;
  margin-left: 6px;
}
.ov2-meta-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #31A24C; box-shadow: 0 0 0 3px rgba(49,162,76,0.18);
  animation: ov2-pulse 2s ease-in-out infinite;
}
@keyframes ov2-pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(49,162,76,0.18); }
  50%      { box-shadow: 0 0 0 6px rgba(49,162,76,0.08); }
}

/* --- flow section (pipeline + curriculum) --- */
.ov2-flow { margin-bottom: 32px; }
.ov2-flow-head { margin-bottom: 18px; max-width: 720px; }
.ov2-kicker {
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--theme-blue);
  margin-bottom: 8px;
}
.ov2-h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.15; letter-spacing: -0.018em;
  font-weight: 700; color: var(--fg-1);
  margin: 0 0 6px; max-width: 30ch;
}
.ov2-lede {
  font-size: 14px; line-height: 1.55; color: var(--fg-2);
  max-width: 60ch; margin: 0;
}

/* --- horizontal pipeline --- */
.ov2-flow .ov-pipe {
  position: relative;
  background: linear-gradient(180deg, #FAFBFC 0%, #F3F5F8 100%);
  border: 1px solid var(--theme-gray-200);
  border-radius: 14px;
  padding: 22px 14px 14px;
  overflow: hidden;
}
.ov-pipe-svg {
  position: absolute;
  left: 0; right: 0; top: 64px; height: 36px;
  width: 100%;
  pointer-events: none;
}
.ov-pipe-stops {
  position: relative;
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 4px;
}
.ov-stop {
  all: unset;
  cursor: pointer;
  display: flex; flex-direction: column; align-items: center;
  padding: 6px 4px 10px;
  border-radius: 10px;
  transition: background 180ms ease, transform 180ms ease;
  text-align: center;
}
.ov-stop:hover, .ov-stop.on {
  background: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px -18px rgba(15,23,42,0.2);
}
.ov-stop:focus-visible { outline: 2px solid var(--hex); outline-offset: 2px; }
.ov-stop-n {
  font-family: var(--font-mono); font-size: 9.5px; font-weight: 800;
  letter-spacing: 0.12em; color: var(--fg-2);
  margin-bottom: 6px;
}
.ov-stop.on .ov-stop-n, .ov-stop:hover .ov-stop-n { color: var(--hex); }
.ov-stop-dot {
  width: 38px; height: 38px; border-radius: 50%;
  background: #fff;
  border: 1.5px solid var(--theme-gray-300);
  display: grid; place-items: center;
  transition: border-color 180ms ease, box-shadow 240ms ease, transform 180ms ease;
  position: relative; z-index: 2;
}
.ov-stop.on .ov-stop-dot, .ov-stop:hover .ov-stop-dot {
  border-color: var(--hex);
  transform: scale(1.06);
}
.ov-stop-title {
  font-size: 12.5px; font-weight: 700; color: var(--fg-1);
  letter-spacing: -0.005em;
  margin-top: 8px;
}
.ov-stop-tag {
  font-family: var(--font-mono); font-size: 9.5px;
  color: var(--fg-2); letter-spacing: 0.01em;
  line-height: 1.25; margin-top: 2px;
}

/* --- detail drawer --- */
.ov2-detail {
  margin-top: 14px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  background: #fff;
  border: 1px solid var(--theme-gray-200);
  border-left: 4px solid var(--hex);
  border-radius: 12px;
  padding: 14px 18px 14px 16px;
  transition: border-color 200ms ease;
}
.ov2-detail-n {
  font-family: var(--font-mono); font-size: 13px; font-weight: 800;
  letter-spacing: 0.1em;
  background: var(--hex); color: #fff;
  padding: 6px 10px; border-radius: 6px;
}
.ov2-detail-main { min-width: 0; }
.ov2-detail-title {
  font-size: 16px; font-weight: 700; color: var(--fg-1);
  letter-spacing: -0.01em; line-height: 1.2;
}
.ov2-detail-tag {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--fg-2); font-weight: 500; letter-spacing: 0.01em;
}
.ov2-detail-body {
  font-size: 13.5px; color: var(--fg-strong);
  line-height: 1.5; margin-top: 2px;
}
.ov2-detail-btn { font-size: 13px; padding: 9px 14px; white-space: nowrap; }

/* --- tools one-liner --- */
.ov2-tools {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  padding: 14px 18px;
  background: var(--theme-gray-100);
  border: 1px solid var(--theme-gray-200);
  border-radius: 12px;
}
.ov2-tools-lab {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--fg-2); font-weight: 700;
  margin-right: 6px;
}
.ov2-chip {
  font-family: var(--font-mono); font-size: 11.5px; font-weight: 600;
  color: var(--fg-strong);
  background: #fff;
  border: 1px solid var(--theme-gray-200);
  border-radius: 6px;
  padding: 4px 8px;
  letter-spacing: 0.01em;
}

/* ==========================================================================
   v7 polish & stability — fixes hover jitter, reserves consistent vertical
   space in cards, contains overflow, adds responsive breakpoints.
   This block intentionally OVERRIDES the corresponding rules above.
   ========================================================================== */

/* --- Overview pipeline: stop cards (the explicit complaint) -------------- */
/* Every card is locked to a FIXED pixel height with FIXED inner row heights.
   Title + tag are clamped to exactly 2 lines (extra line of empty space when
   content is shorter) — guarantees identical sizing regardless of content. */
.ov-pipe-stops {
  align-items: stretch;
  grid-auto-rows: 148px;
}
.ov-stop {
  all: unset;
  box-sizing: border-box;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 6px 12px;
  border-radius: 10px;
  text-align: center;
  height: 148px;
  min-width: 0;
  border: 1px solid transparent;
  background: transparent;
  transition: background 180ms ease, box-shadow 220ms ease, border-color 180ms ease;
  transform: none;
  overflow: hidden;
}
.ov-stop:hover, .ov-stop.on {
  background: #fff;
  border-color: color-mix(in oklab, var(--hex) 22%, var(--theme-gray-200));
  box-shadow: 0 10px 28px -18px rgba(15,23,42,0.22);
  transform: none;
}
.ov-stop-n {
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 0;
  height: 14px;
  line-height: 14px;
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--fg-2);
}
.ov-stop-dot {
  width: 40px; height: 40px;
  margin-top: 4px;
  flex-shrink: 0;
  transition: border-color 180ms ease, box-shadow 240ms ease;
  transform: none;
}
.ov-stop.on .ov-stop-dot, .ov-stop:hover .ov-stop-dot {
  transform: none;
}
.ov-stop-title {
  margin-top: 8px;
  height: 30px;
  line-height: 1.2;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--fg-1);
  letter-spacing: -0.005em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  width: 100%;
  word-break: break-word;
  flex-shrink: 0;
}
.ov-stop-tag {
  margin-top: 4px;
  height: 26px;
  line-height: 1.35;
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--fg-2);
  letter-spacing: 0.01em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  width: 100%;
  word-break: break-word;
  flex-shrink: 0;
}

/* Pipeline track: keep behind cards, prevent overflow on resize */
.ov2-flow .ov-pipe { overflow: hidden; }
.ov-pipe-svg { z-index: 0; }
.ov-pipe-stops > .ov-stop { position: relative; z-index: 1; }

/* Detail drawer: graceful collapse on narrow viewports */
@media (max-width: 720px) {
  .ov2-detail {
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "n   main"
      "btn btn";
    row-gap: 12px;
  }
  .ov2-detail-n   { grid-area: n; }
  .ov2-detail-main{ grid-area: main; }
  .ov2-detail-btn { grid-area: btn; justify-self: stretch; text-align: center; }
}

/* --- Generic card hovers: stop layout-shifting translateY ---------------- */
/* The translateY(-2px) created sibling jitter in tight grids (cards-2/3,
   fmt-strip, eng-cards, bf-parts). Replace with shadow + border lift only. */
.ccard:hover,
.fmt-card:hover,
.eng-card:hover {
  transform: none;
  box-shadow: 0 14px 36px -18px rgba(8,14,28,0.22);
  border-color: var(--theme-blue);
}
.cards-3, .cards-2, .fmt-strip, .eng-cards { align-items: stretch; }
.ccard, .fmt-card, .eng-card { min-width: 0; }

/* --- Code blocks: never overflow horizontally on narrow screens --------- */
.code-body {
  word-break: break-word;
  overflow-wrap: anywhere;
}

/* --- Bf parts (Ch4) responsive: 7 cols squeezes below 900px ------------- */
@media (max-width: 900px) {
  .bf-parts { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 560px) {
  .bf-parts { grid-template-columns: repeat(2, 1fr); }
}

/* --- Cumulative table (Ch2) responsive --------------------------------- */
@media (max-width: 900px) {
  .cm-stage {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .cm-join { transform: rotate(90deg); padding: 2px 0; }
  .cm-days { grid-template-columns: repeat(3, 1fr); }
}

/* --- Compute SVG: don't escape its container --------------------------- */
.qp-stage { overflow: hidden; }

/* --- Lakehouse diagram responsive -------------------------------------- */
@media (max-width: 820px) {
  .lh-diagram { grid-template-columns: 1fr; }
  .lh-arrow { writing-mode: horizontal-tb; transform: none; padding: 8px 0; }
}

/* --- Quality (Ch5): bar needle never collapses, days grid scales ------ */
.tm-bar-needle { min-width: 4px; }
@media (max-width: 720px) {
  .tm-days { grid-template-columns: repeat(15, 1fr); gap: 2px; }
}
@media (max-width: 480px) {
  .tm-days { grid-template-columns: repeat(10, 1fr); }
}

/* --- Discover (Ch6): result rows stack on mobile ----------------------- */
@media (max-width: 600px) {
  .ds-result-rows { grid-template-columns: 1fr; }
}

/* --- Serve / Agent (Ch7): two-pane stacks on tablet, yaml never bleeds */
@media (max-width: 900px) {
  .aa-stages { grid-template-columns: 1fr; }
}
.aa-yaml {
  word-break: break-word;
  overflow-wrap: anywhere;
  max-width: 100%;
}

/* --- Govern (Ch8): permission gate stacks on narrow viewports ---------- */
@media (max-width: 720px) {
  .pg-layout { grid-template-columns: 1fr; }
}

/* --- Capstone (Ch9): break-grid scales down ---------------------------- */
@media (max-width: 820px) {
  .lp-break-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .lp-break-grid { grid-template-columns: 1fr; }
  .lp-downstream { grid-template-columns: 1fr; }
}

/* --- Readout grid responsive (used everywhere) ------------------------- */
@media (max-width: 720px) {
  .readout-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 380px) {
  .readout-grid { grid-template-columns: 1fr; }
}
.readout .r-v { min-height: 28px; }

/* --- Defensive min-width: 0 on common grid children -------------------- */
.cm-table, .aa-stage-col, .pg-ide, .lp-signal, .ds-result {
  min-width: 0;
}

/* --- Watermark stage (Ch1): keep dragged elements inside --------------- */
.wm-stage { overflow: hidden; }

/* --- Streaming field (Ch1.5): contain particles ------------------------ */
.cv-field { overflow: hidden; }

/* --- Pill/actor labels in Govern: never wrap mid-name ------------------ */
.pill-actor {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

/* --- Top topbar: prevent breadcrumb overflow on narrow screens --------- */
.tb { padding: 0 20px; }
.crumb {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

/* --- Content wrapper: tighter horizontal padding on narrow viewports --- */
@media (max-width: 720px) {
  .content { padding: 28px 20px 64px; }
  [data-density="compact"] .content { padding: 22px 16px 56px; }
}

/* --- App shell: collapse sidebar to a horizontal nav on narrow ---------
   The sidebar is a 256px sticky column. Below 900px it crowds the main
   content. Hide it cleanly so the course remains readable on tablets. */
@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sb {
    position: relative; height: auto;
    border-right: none;
    border-bottom: 1px solid var(--theme-gray-200);
  }
  .sb-nav {
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 4px;
    padding-bottom: 4px;
  }
  .sb-item {
    flex: 0 0 auto;
    grid-template-columns: 28px auto auto;
    padding: 6px 10px;
  }
  .sb-item::before { display: none; }
  .sb-text { white-space: nowrap; }
}

/* ==========================================================================
   v8 polish & elevation — locks remaining surfaces, applies pro motion,
   strengthens accessibility. Append-only; overrides earlier rules where
   needed.  Reference plan: ~/.claude/plans/unfortunately-still-not-some-
   synthetic-avalanche.md
   ========================================================================== */

:root {
  /* Linear's signature easing — decisive, not bouncy.
     Distinct from --ease-spring (which is playful and reserved for tweaks). */
  --ease-pro: cubic-bezier(0.32, 0.72, 0, 1);
}

/* --- Step 1: Lock the detail drawer height ----------------------------- */
.ov2-detail {
  min-height: 96px;
  align-items: start;
}
.ov2-detail-main {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.ov2-detail-title {
  min-height: 19px;
  line-height: 1.2;
  letter-spacing: -0.012em;
}
.ov2-detail-body {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 42px;
  line-height: 1.5;
  margin-top: 0;
}

/* --- Step 2: Lock the sidebar (no shift on active) --------------------- */
.sb-item {
  grid-template-columns: 28px 1fr 44px;
  font-weight: 600;
}
.sb-time {
  text-align: right;
  width: 44px;
}
.sb-item.active {
  font-weight: 600;
}
.sb-item.active .sb-title {
  text-shadow: 0 0 0.55px currentColor;
}
.sb-item:hover .sb-title {
  text-shadow: 0 0 0.4px currentColor;
}

/* --- Step 3: Harden pipeline cards against hyphenation drift ----------- */
.ov-stop-title,
.ov-stop-tag {
  word-break: normal;
  overflow-wrap: anywhere;
  hyphens: none;
  -webkit-hyphens: none;
}

/* --- Step 4: Spring easing on every interactive surface ---------------- */
.ov-stop,
.sb-item,
.ov2-detail,
.ccard,
.fmt-card,
.eng-card,
.btn,
.ov2-btn-ghost,
.ov2-btn-primary {
  transition:
    background     220ms var(--ease-pro),
    border-color   220ms var(--ease-pro),
    box-shadow     320ms var(--ease-pro),
    color          200ms var(--ease-pro),
    text-shadow    200ms var(--ease-pro);
}
.ov-stop-dot {
  transition:
    border-color   220ms var(--ease-pro),
    box-shadow     320ms var(--ease-pro);
}
.ov2-detail {
  transition:
    border-color   220ms var(--ease-pro),
    box-shadow     320ms var(--ease-pro);
}

/* --- Step 5: Stronger focus-visible rings (WCAG AA) -------------------- */
.ov-stop:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 2px #fff,
    0 0 0 4px var(--hex);
}
.sb-item {
  outline: none;
}
.sb-item:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--ch-hex);
}
.btn:focus-visible,
.ov2-btn-ghost:focus-visible,
.ov2-btn-primary:focus-visible,
.ov2-detail-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--theme-blue) 35%, transparent);
}

/* --- Step 7: Hero typography rhythm (8px grid, tighter caps) ----------- */
.ov2-flow-head {
  margin-bottom: 24px;
}
.ov2-h2 {
  line-height: 1.12;
  letter-spacing: -0.022em;
}
.ov2-lede {
  max-width: 56ch;
}

/* ==========================================================================
   v9 animation polish — sim-by-sim improvements across all chapters.
   Goals: smoother motion, no overflow, no jitter on live counters,
   bigger tap targets, larger SVG labels, mobile-safe.
   ========================================================================== */

/* --- Universal: tabular-nums on every live counter ---------------------- */
/* Prevents glyph-width changes during number updates that cause
   sibling labels to shift one or two pixels per frame. */
.sc-stat-v, .sc-prog-val,
.bt-stop-lat, .bt-readout .v,
.cm-val, .cm-row .cm-val, .bf-part .rows, .bf-part .sub,
.tm-score-big, .tm-bd-w, .tm-impact-cell .big,
.aa-step .time, .aa-readout .v,
.lp-gs .n, .lp-stat-v, .lp-row-id,
.cv-ledger-row code, .cv-readout-v,
.qp-lab-big, .qp-stat .v, .sd-stat .v,
.cs-tab-lat, .cs-stat .v,
.ds-q-time, .ds-leader-row .v,
.pg-console-body, .pg-row-stats .v,
.readout .r-v {
  font-variant-numeric: tabular-nums;
}

/* --- Universal: btn vertical sizing + minimum tap target --------------- */
.btn { padding: 8px 14px; font-size: 12px; }
.btn .kbd { padding: 0 6px; }
.btn-sm, .lp-agent-head .btn {
  padding: 6px 12px;
  font-size: 12px;
}

/* --- Ch0 Fundamentals: Scanner row vs columnar ------------------------- */
/* Linear transitions on cell highlights felt mechanical. Spring them. */
.sc-c {
  transition:
    background 90ms var(--ease-pro),
    box-shadow 140ms var(--ease-pro),
    transform 180ms var(--ease-pro);
}
.sc-prog-fill {
  transition: width 90ms var(--ease-pro);
  will-change: width;
}
.sc-stat-k {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sc-check.dis { cursor: not-allowed; }

/* --- Ch0 StackSims: LayerCake (7-layer hover stack) -------------------- */
.lc-slab {
  transition:
    transform 240ms var(--ease-pro),
    box-shadow 240ms var(--ease-pro),
    filter 200ms var(--ease-pro);
  user-select: none;
}
.lc-slab.pulse {
  transition:
    box-shadow 140ms var(--ease-pro),
    transform 240ms var(--ease-pro);
}
@media (max-width: 600px) {
  .lc-slab-api { font-size: 10px; max-width: 160px; }
  .lc-detail { top: 14px; }
}

/* --- Ch0 StackSims: ByteTrace (latency particle walk) ------------------ */
.bt-track {
  transition: width 80ms var(--ease-pro);
  will-change: width;
}
.bt-particle {
  transition: left 80ms var(--ease-pro);
  will-change: left;
}
.bt-stop-d {
  word-wrap: break-word;
  overflow-wrap: anywhere;
  hyphens: none;
}
@media (max-width: 480px) {
  .bt-stop { padding-top: 48px; }
  .bt-stop-num { font-size: 9.5px; }
}

/* --- Ch0 StackSims: SqlDecoderStage ------------------------------------ */
.sd-phase { transition: opacity 200ms var(--ease-pro); }
.sd-op {
  word-break: normal;
  overflow-wrap: anywhere;
  max-width: 100%;
}
.sd-w-fill {
  transition: height 220ms var(--ease-pro);
  will-change: height;
}
@media (max-width: 480px) {
  .sd-sql-pre { font-size: 11px; }
}

/* --- Ch0 StackSims: ConnectorSwitcher ---------------------------------- */
.cs-panel { transition: background 240ms var(--ease-pro); }
.cs-tab {
  transition:
    background 120ms var(--ease-pro),
    border-color 120ms var(--ease-pro),
    color 120ms var(--ease-pro);
}
.cs-stat-v, .cs-tab-lat { word-break: normal; overflow-wrap: anywhere; }

/* --- Ch1 Ingest: Watermark (drag) -------------------------------------- */
.wm-dot-ontime, .wm-dot-late {
  transition: opacity 200ms var(--ease-pro), fill 200ms var(--ease-pro);
}
.wm-axis-label { font-size: 12px; }

/* --- Ch1.5 Streaming: Conveyor sim ------------------------------------- */
.cv-ev {
  transition:
    left 200ms var(--ease-pro),
    top 200ms var(--ease-pro),
    opacity 200ms var(--ease-pro);
  will-change: left, top, opacity;
}
.cv-ledger-row code {
  word-break: normal;
  overflow-wrap: anywhere;
  font-size: 10.5px;
}
@media (max-width: 480px) {
  .cv-ledger-row code { font-size: 9.5px; }
  .cv-late-row { grid-template-columns: auto 1fr; }
  .cv-slider { min-width: 120px; }
}

/* --- Ch2 Store: Cumulative table --------------------------------------- */
.cm-row.new { animation: cm-new 0.5s var(--ease-pro); }

/* --- Ch3 Compute: Shuffle/Join planner --------------------------------- */
@keyframes qp-shake-pro {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-1.4px); }
  40% { transform: translateX(1.6px); }
  60% { transform: translateX(-1.2px); }
  80% { transform: translateX(1.4px); }
}
.qp-overload rect:first-child {
  animation: qp-shake-pro 0.5s cubic-bezier(0.32, 0.72, 0, 1) infinite;
}

/* --- Ch4 Orchestrate: Backfill ----------------------------------------- */
@keyframes bf-shake-pro {
  0%, 100% { transform: translateX(0); }
  16% { transform: translateX(-3px); }
  32% { transform: translateX(3px); }
  48% { transform: translateX(-2px); }
  64% { transform: translateX(2px); }
  80% { transform: translateX(-1px); }
}
.bf-part.failed {
  animation: bf-shake-pro 0.5s cubic-bezier(0.32, 0.72, 0, 1) 2;
}
.bf-part.doubled {
  animation: bf-pulse-err 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}
.bf-part {
  transition:
    background 240ms var(--ease-pro),
    border-color 240ms var(--ease-pro),
    box-shadow 320ms var(--ease-pro);
}
.bf-part .rows { font-variant-numeric: tabular-nums; }
.sched-log { max-height: 280px; }

/* --- Ch5 Quality: Trust meter ------------------------------------------ */
.tm-bar-needle {
  transition:
    left 380ms cubic-bezier(0.32, 0.72, 0, 1),
    background 240ms var(--ease-pro);
}
.tm-score-big {
  transition: color 280ms var(--ease-pro);
  font-variant-numeric: tabular-nums;
}
.tm-check, .tm-corr {
  transition: all 160ms var(--ease-pro);
}
.tm-day {
  transition: background 200ms var(--ease-pro), border-color 200ms var(--ease-pro);
}
.tm-day.running {
  animation: tm-pulse 0.7s cubic-bezier(0.32, 0.72, 0, 1) infinite alternate;
}
@keyframes tm-pulse {
  from { opacity: 1; box-shadow: 0 0 0 0 rgba(8,102,255,0.0); }
  to   { opacity: 0.85; box-shadow: 0 0 0 4px rgba(8,102,255,0.18); }
}

/* --- Ch6 Discover: Speedrun + Lineage --------------------------------- */
.ds-terminal {
  will-change: transform;
}
.ds-terminal.flash-err {
  animation: ds-shake 0.4s cubic-bezier(0.32, 0.72, 0, 1);
}
.ds-result { transition: opacity 280ms var(--ease-pro), transform 280ms var(--ease-pro); }
@media (max-width: 360px) {
  .ds-toast { right: 8px; top: 8px; max-width: calc(100% - 16px); }
}

/* --- Ch7 Serve: AgentSim ---------------------------------------------- */
.aa-step {
  transition:
    background 200ms var(--ease-pro),
    border-color 200ms var(--ease-pro),
    color 180ms var(--ease-pro);
}
@keyframes aa-pulse-pro {
  0%, 100% { box-shadow: 0 0 0 0 rgba(8,102,255,0.0); }
  50%      { box-shadow: 0 0 0 4px rgba(8,102,255,0.18); }
}
.aa-step.active .ico {
  animation: aa-pulse-pro 1.4s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
.aa-answer {
  animation: aa-fade-up 320ms var(--ease-pro);
}
@keyframes aa-fade-up {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* --- Ch8 Govern: Permission gate -------------------------------------- */
.pg-chip {
  transition:
    background 140ms var(--ease-pro),
    border-color 140ms var(--ease-pro),
    box-shadow 200ms var(--ease-pro),
    transform 160ms var(--ease-pro);
}
.pg-chip.dragging {
  will-change: transform;
  cursor: grabbing;
}
.pg-col-row {
  transition: background 180ms var(--ease-pro);
}
.pg-ide-ln { padding: 5px 12px; }
.pg-console-body { scroll-behavior: smooth; }

/* --- Ch9 Capstone: LivingPipeline ------------------------------------- */
.lp-row {
  will-change: transform, opacity;
}
.lp-pulse span {
  animation: lp-pulse-ring 1.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) infinite;
}
.lp-agent-ans {
  animation: lp-fade-up 500ms var(--ease-pro);
}
.lp-signal-body {
  transition: background 320ms var(--ease-pro);
}
.lp-break {
  transition:
    background 200ms var(--ease-pro),
    border-color 200ms var(--ease-pro),
    box-shadow 320ms var(--ease-pro);
}
.lp-gs .n { font-variant-numeric: tabular-nums; }

/* Stage labels positioned absolutely from JS — translate so they
   anchor centered on each gate marker. */
.lp-label-gate {
  transform: translateX(-50%);
}

/* --- Topbar / kbd: tighter rendering ---------------------------------- */
.kbd { font-size: 10.5px; }
.tb { padding: 0 24px; }
@media (max-width: 720px) {
  .tb { padding: 0 16px; }
}

/* --- Reduced motion: disable looping / heavy animations -------------- */
@media (prefers-reduced-motion: reduce) {
  .qp-overload rect:first-child,
  .bf-part.failed,
  .bf-part.doubled,
  .tm-day.running,
  .ds-terminal.flash-err,
  .aa-step.active .ico,
  .lp-pulse span,
  .ov2-meta-dot {
    animation: none !important;
  }
  .lp-row,
  .cv-ev,
  .bt-particle,
  .sc-prog-fill {
    transition: none !important;
  }
}

/* ==========================================================================
   v10 polish — fixes the remaining interaction shifts and overflows the
   user reported, gives the headline sims more breathing room. Targets:
   - Capstone (lp-*) — code overflow, .on border shift, button width shift,
     stage height bumped 480 → 560px.
   - Conveyor (cv-*) — desktop height 420 → 520px, ledger readable.
   - Scanner (sc-*), Watermark (wm-*), ByteTrace (bt-*), DAG, Lineage:
     bigger labels, breathing.
   - Universal: any state-toggled border now uses transparent default to
     prevent 1px box-model shift.
   ========================================================================== */

/* ===== Capstone (Ch9) ================================================== */

/* Stage taller — flagship sim deserves more space.
   Default 480px → 560px gives the conveyor breathing room and lets the
   gate stats sit cleanly under the rows without overlap. */
.lp-stage { height: 560px; }
@media (max-width: 1000px) { .lp-stage { height: 480px; } }
@media (max-width: 720px)  { .lp-stage { height: 420px; } }

/* Reposition gate stats below center because we have more room now */
.lp-gate-stats { top: 64%; }

/* Break-code overflow — the user-reported function-name overflow.
   `INSERT OVERWRITE → INSERT INTO` (33 chars) now wraps inside its
   container. Mono font shrinks slightly on narrow viewports. */
.lp-break-code {
  word-break: break-word;
  overflow-wrap: anywhere;
  hyphens: none;
  line-height: 1.4;
  /* Reserve the 1px border space at all times so toggling .on doesn't
     shift content inward by 1px (was a layout shift). */
  border: 1px dashed transparent;
}
.lp-break.on .lp-break-code {
  background: #fff;
  border: 1px dashed #E41E3F;
  color: #E41E3F;
}
@media (max-width: 520px) {
  .lp-break-code { font-size: 10px; }
}

/* Break header: title shouldn't push the pill off-screen */
.lp-break-head { gap: 10px; align-items: center; }
.lp-break-head .title {
  flex: 1 1 auto;
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: normal;
}
.lp-break-head .pill {
  flex-shrink: 0;
  white-space: nowrap;
  /* Reserve width so "healthy" / "broken" don't change sibling layout */
  min-width: 60px;
  text-align: center;
}

/* Break good/bad labels: smoother wrapping */
.lp-break-good, .lp-break-bad {
  word-break: normal;
  overflow-wrap: anywhere;
}
@media (max-width: 520px) {
  .lp-break-good, .lp-break-bad { font-size: 10.5px; line-height: 1.5; }
}

/* Signal head: long table names shouldn't bust the row */
.lp-signal-head { gap: 12px; min-width: 0; }
.lp-signal-head .l-v {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lp-signal-head .l-v code {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: inline-block;
  max-width: 100%;
}

/* Agent head: lock geometry so the button text changing
   ("ask the question" → "ask again") doesn't reflow the title. */
.lp-agent-head {
  gap: 12px;
  min-width: 0;
}
.lp-agent-head > span:first-child {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1 1 auto;
}
.lp-agent-head code {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lp-agent-head .btn.btn-sm {
  flex-shrink: 0;
  min-width: 148px;          /* fits the longer label so it never reflows */
  text-align: center;
  padding: 7px 14px;
  font-size: 11.5px;
  letter-spacing: 0.02em;
  text-transform: none;
  font-weight: 700;
}

/* Console head: stack actions on narrow viewports */
.lp-console-head { gap: 16px; flex-wrap: wrap; }
@media (max-width: 600px) {
  .lp-console-head { flex-direction: column; align-items: stretch; }
  .lp-console-actions { flex-direction: row; flex-wrap: wrap; gap: 8px; }
  .lp-console-actions .btn { flex: 1 1 auto; }
}

/* Stage labels: keep title from breaking line on narrow viewports */
.lp-label-gate {
  width: 110px;          /* +10px breathing for "Watermark + dedup", "Cumulative merge" */
}
.lp-label-gate .lp-l-title {
  font-size: 13px;       /* +0.5px legibility */
  line-height: 1.18;
  word-break: normal;
  overflow-wrap: anywhere;
}
.lp-label-gate .lp-l-ref {
  font-size: 10px;       /* +0.5px legibility for "Ch09 · Govern" */
}
@media (max-width: 720px) {
  .lp-label-gate { width: 96px; }
  .lp-label-gate .lp-l-title { font-size: 11.5px; }
  .lp-label-gate .lp-l-ref { font-size: 9px; }
}

/* Row pills (the dim_users tokens flowing through the conveyor):
   bump font and padding so they read at a glance. */
.lp-row {
  font-size: 10.5px;          /* was 9.5 */
  padding: 4px 9px;           /* was 3 7 */
  border-radius: 14px;
  /* Spring transition (overrides the inline ease in earlier rule) */
  transition:
    left 160ms cubic-bezier(0.32, 0.72, 0, 1),
    top 240ms cubic-bezier(0.32, 0.72, 0, 1),
    background 220ms var(--ease-pro),
    border-color 220ms var(--ease-pro),
    opacity 240ms var(--ease-pro),
    transform 240ms var(--ease-pro);
}

/* Per-gate stat numbers: bigger so they're scannable */
.lp-gs .n   { font-size: 19px; }
.lp-gs .lab { font-size: 10px; }
.lp-gs .sub, .lp-gs .bad { font-size: 10px; }

/* Dataset overlay: a touch more readable */
.lp-dataset .lp-d-name code { font-size: 16px; }
.lp-dataset .lp-d-sub { font-size: 11px; }

/* Side label for late table */
.lp-side-label { font-size: 11px; }
.lp-side-label .sub { font-size: 10px; }

/* Console title responsive */
@media (max-width: 520px) {
  .lp-console-title { font-size: 17px; line-height: 1.2; }
}

/* Sabotage break button: prevent the click-active ring from shifting
   the box. Use box-shadow instead of border-width changes. */
.lp-break {
  border: 1.5px solid var(--theme-gray-200);
  border-left: 4px solid var(--c);
}
.lp-break:hover:not(.on) {
  border-color: var(--c);
  background: #fff;
  box-shadow: 0 8px 20px -14px rgba(15,23,42,0.18);
}
.lp-break.on {
  border-color: #E41E3F;
  border-left-color: #E41E3F;
}

/* ===== Conveyor (Ch1.5) ================================================ */
/* Bigger desktop stage so events have room to fall and dedup links read. */
.cv-stage { min-height: 460px; }
@media (max-width: 900px)  { .cv-stage { min-height: 380px; } }
@media (max-width: 600px)  { .cv-stage { min-height: 320px; } }

/* Ledger: more legible IDs */
.cv-ledger-row code { font-size: 11px; }

/* ===== Watermark (Ch1) ================================================= */
/* Stage taller, axis labels bigger so the drag concept reads instantly. */
.wm-stage { height: 420px; }
@media (max-width: 720px) { .wm-stage { height: 340px; } }
.wm-tick { font-size: 11px; }
.wm-axis-label { font-size: 13px; }

/* ===== Scanner (Ch0.4) ================================================ */
/* Bigger header labels so col[47] is readable. */
.sc-grid-head { font-size: 12px; }
.sc-stat-k { font-size: 11px; }
.sc-stat-v { font-size: 22px; }

/* ===== ByteTrace (Ch0.3) ============================================== */
/* Stop labels bigger; rail more padding for scannability. */
.bt-rail-wrap { padding: 28px 18px; }
.bt-stop-num { font-size: 10.5px; }
.bt-stop-label { font-size: 12.5px; }
.bt-stop-d { font-size: 11px; line-height: 1.45; }
.bt-stop-lat { font-size: 12px; font-weight: 800; }

/* ===== DAG diagram (Ch4) — ensure SVG is tall enough ================= */
/* The DAG is now 132×50 nodes — increase container height accordingly. */

/* ===== Universal: state-toggled border-width prevention ============== */
/* Any element where the .on/.active state previously added a border now
   reserves it via transparent default. (Belt + suspenders for sims.) */
.cap-file { border: 1px solid transparent; }
.cap-file.focus { font-weight: 500; }   /* was 600 — kill width shift */

/* ===== Code blocks in tight cells: universal overflow safety ======== */
.lp-l-ref code,
.lp-agent-q code,
.lp-agent-think code,
.lp-agent-ans .src code,
.aa-step code,
.cv-label-watermark span,
.cv-label-gate .gsub,
.bt-stop-d code {
  word-break: normal;
  overflow-wrap: anywhere;
}

/* ===== Pills, chips, badges — never let text reflow buttons ========= */
.pill, .chip, .ccard-t, .lp-break-head .pill {
  white-space: nowrap;
}

/* ===== Buttons that toggle text — reserve min-width =================== */
/* Pause/Resume buttons in sims often shift width when text changes
   ("⏸ Pause stream" vs "▶ Resume"). Reserve enough width for both. */
.lp-console-actions .btn { min-width: 124px; }
.ctl-row .btn { min-width: 132px; }

/* ===== Wider stage rule (let signature sims breathe past 1080px) ===== */
/* Capstone stage gets to use the full content frame; visually a "showcase". */
.lp-wrap { max-width: none; }

/* ===== Capstone overlay collision fix ================================
   The "fct_vuln_scans__late" side-label is anchored under the watermark
   gate (left: 42%, top: 78%), and the "dim_users" dataset card was at
   bottom-left — at narrow widths the two collided horizontally.
   Move the dataset card to bottom-RIGHT (empty corner — analyst label
   is at top-right) and cap the side-label width so its description never
   extends past the next gate. */
.lp-dataset {
  left: auto;
  right: 16px;
  bottom: 14px;
  max-width: 320px;
}
.lp-side-label {
  /* Cap the side-label so its 'late arrivals spill here…' text wraps
     within the late-bin's column rather than running across the stage. */
  max-width: 180px;
  font-size: 10.5px;
}
.lp-side-label > div:first-child { font-weight: 700; }
.lp-side-label .sub { font-size: 9.5px; line-height: 1.4; }
@media (max-width: 720px) {
  .lp-dataset { max-width: 240px; right: 12px; bottom: 10px; }
  .lp-side-label { max-width: 140px; font-size: 9.5px; }
  .lp-side-label .sub { font-size: 8.5px; }
}

/* ===== Small typographic harmonies =================================== */
/* Many panels use 10.5px mono labels — bump to 11px for legibility. */
.panel-head .panel-title .lab,
.panel-meta { font-size: 11px; }
.panel-caption { font-size: 11.5px; line-height: 1.55; }

/* ==========================================================================
   v11 — Ch2 cumulative table redesign (cm2-*)
   3 horizontal panels with a clear data-flow narrative:
     [Yesterday's snapshot]  +  [Today's events]  =  [Today's snapshot]
   Plus a "what just happened" summary strip below.
   ========================================================================== */

.cm2-flow {
  display: grid;
  grid-template-columns: 1fr 64px 1fr 64px 1fr;
  gap: 12px;
  align-items: stretch;
  margin-top: 18px;
}

.cm2-panel {
  background: #fff;
  border: 1.5px solid var(--theme-gray-200);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  transition: border-color 220ms var(--ease-pro);
}
.cm2-panel.is-bug {
  border-color: #F7B928;
  background: linear-gradient(180deg, #FFFBF2 0%, #fff 60%);
}
.cm2-panel-result {
  border-color: var(--theme-blue);
  background: linear-gradient(180deg, #F3F8FF 0%, #fff 60%);
}

.cm2-panel-head {
  padding: 12px 14px;
  border-bottom: 1px solid var(--theme-gray-200);
  background: var(--theme-gray-50);
}
.cm2-panel.is-bug .cm2-panel-head { background: #FFF7E0; border-bottom-color: #F7B928; }
.cm2-panel-result .cm2-panel-head { background: #E7F3FF; border-bottom-color: var(--theme-blue); }

.cm2-panel-eyebrow {
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-2);
  margin-bottom: 4px;
}
.cm2-panel-title {
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: -0.012em;
  color: var(--fg-1);
  line-height: 1.2;
}
.cm2-panel-sub {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--fg-2);
  margin-top: 4px;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cm2-panel-sub code {
  background: rgba(0,0,0,0.04);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--fg-1);
  font-weight: 600;
}
.cm2-panel-alert {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 800;
  color: #8B5C00;
  background: rgba(247,185,40,0.18);
  padding: 4px 8px;
  border-radius: 4px;
  letter-spacing: 0.02em;
  border: 1px solid rgba(247,185,40,0.4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cm2-table {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}
.cm2-thead {
  display: grid;
  grid-template-columns: 1fr auto;
  padding: 8px 14px 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--fg-2);
  text-transform: uppercase;
  border-bottom: 1px dashed var(--theme-gray-200);
}
.cm2-thead-3 {
  grid-template-columns: 1fr auto 60px;
  gap: 8px;
}
.cm2-thead .r { text-align: right; }
.cm2-thead .s { text-align: center; }

.cm2-tbody {
  flex: 1;
  padding: 4px 8px;
  max-height: 260px;
  overflow-y: auto;
  font-variant-numeric: tabular-nums;
}
.cm2-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 5px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  transition: background 200ms var(--ease-pro);
}
.cm2-row-3 {
  grid-template-columns: 1fr auto 60px;
  gap: 8px;
}
.cm2-row.is-new   { background: rgba(49,162,76,0.08); }
.cm2-row.is-upd   { background: rgba(8,102,255,0.06); }
.cm2-row.is-skipped { opacity: 0.45; }
.cm2-key { color: var(--fg-2); font-weight: 600; }
.cm2-val { color: var(--fg-1); font-weight: 700; text-align: right; }
.cm2-delta { color: var(--theme-green); font-weight: 800; }
.cm2-panel.is-bug .cm2-delta { color: #B8770A; }

.cm2-status {
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 800;
  letter-spacing: 0.06em;
  padding: 2px 6px;
  border-radius: 4px;
  text-align: center;
  min-width: 44px;
}
.cm2-st-new  { background: var(--theme-green); color: #fff; }
.cm2-st-upd  { background: var(--theme-blue); color: #fff; }
.cm2-st-same { background: var(--theme-gray-200); color: var(--fg-2); }

.cm2-empty {
  padding: 22px 12px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-3);
  font-style: italic;
}

.cm2-tfoot {
  display: grid;
  grid-template-columns: 1fr auto;
  padding: 8px 14px;
  border-top: 1px solid var(--theme-gray-200);
  background: var(--theme-gray-50);
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  color: var(--fg-strong);
  letter-spacing: 0.02em;
}
.cm2-tfoot .r { text-align: right; color: var(--fg-1); }
.cm2-panel.is-bug .cm2-tfoot { background: #FFF7E0; }
.cm2-panel-result .cm2-tfoot { background: #E7F3FF; }
.cm2-panel-result .cm2-tfoot .r { color: var(--theme-blue); }

/* Merge step (the + and = arrows between panels) */
.cm2-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 6px 0;
}
.cm2-step-arrow {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--fg-1);
  color: #fff;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 4px 12px -4px rgba(11,18,31,0.25);
}
.cm2-step-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-strong);
  text-align: center;
  line-height: 1.4;
}
.cm2-step-label span {
  display: block;
  font-size: 8.5px;
  font-weight: 600;
  color: var(--fg-2);
  letter-spacing: 0.06em;
  margin-top: 4px;
  line-height: 1.3;
}

/* Summary strip — 'what just happened' */
.cm2-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 18px;
  padding: 14px 18px;
  background: var(--theme-gray-50);
  border: 1px solid var(--theme-gray-200);
  border-radius: 10px;
}
.cm2-summary-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.cm2-summary-k {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-2);
}
.cm2-summary-v {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--fg-1);
  font-variant-numeric: tabular-nums;
}
.cm2-summary-v code {
  font-size: 14px;
  background: none;
  padding: 0;
  color: var(--fg-1);
  font-weight: 700;
}
.cm2-summary-item.is-ok .cm2-summary-v { color: var(--theme-green); }
.cm2-summary-item.is-warn .cm2-summary-v { color: #B8770A; }

/* Responsive: stack panels on tablet, full stack on mobile */
@media (max-width: 1100px) {
  .cm2-flow {
    grid-template-columns: 1fr 56px 1fr;
    grid-template-rows: auto 56px auto;
  }
  .cm2-flow > .cm2-panel:nth-child(1) { grid-column: 1; grid-row: 1; }
  .cm2-flow > .cm2-step:nth-child(2)  { grid-column: 2; grid-row: 1; }
  .cm2-flow > .cm2-panel:nth-child(3) { grid-column: 3; grid-row: 1; }
  .cm2-flow > .cm2-step:nth-child(4)  {
    grid-column: 1 / -1; grid-row: 2;
    flex-direction: row;
  }
  .cm2-flow > .cm2-step:nth-child(4) .cm2-step-label { writing-mode: horizontal-tb; }
  .cm2-flow > .cm2-panel:nth-child(5) { grid-column: 1 / -1; grid-row: 3; }
}
@media (max-width: 720px) {
  .cm2-flow {
    grid-template-columns: 1fr;
    grid-template-rows: auto 36px auto 36px auto;
    gap: 8px;
  }
  .cm2-flow > .cm2-panel:nth-child(1) { grid-column: 1; grid-row: 1; }
  .cm2-flow > .cm2-step:nth-child(2)  { grid-column: 1; grid-row: 2; flex-direction: row; gap: 12px; }
  .cm2-flow > .cm2-panel:nth-child(3) { grid-column: 1; grid-row: 3; }
  .cm2-flow > .cm2-step:nth-child(4)  { grid-column: 1; grid-row: 4; flex-direction: row; gap: 12px; }
  .cm2-flow > .cm2-panel:nth-child(5) { grid-column: 1; grid-row: 5; }
  .cm2-step-arrow { width: 28px; height: 28px; font-size: 14px; }
  .cm2-summary { grid-template-columns: repeat(2, 1fr); }
}

/* ==========================================================================
   v12 — Sim redesigns: Capstone tutorial banner, Conveyor beginner toggle,
   TrustMeter impact panel, ByteTrace headline + skip-stripe animation.
   ========================================================================== */

/* ===== Ch9 Capstone — guided tutorial banner ========================= */
.lp-tutorial-banner {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 5;
  background: linear-gradient(180deg, rgba(15,23,41,0.96), rgba(15,23,41,0.86));
  color: #fff;
  padding: 14px 22px 16px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  animation: lp-tutorial-in 320ms cubic-bezier(0.32, 0.72, 0, 1);
}
@keyframes lp-tutorial-in {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.lp-tutorial-step {
  display: flex; align-items: baseline; gap: 4px;
  font-family: var(--font-mono);
  color: rgba(255,255,255,0.6);
}
.lp-tutorial-step-n {
  font-size: 22px; font-weight: 800; color: #fff;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.lp-tutorial-step-of {
  font-size: 12px; font-weight: 600; letter-spacing: 0.06em;
}
.lp-tutorial-text {
  min-width: 0;
}
.lp-tutorial-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.012em;
  line-height: 1.2;
}
.lp-tutorial-caption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255,255,255,0.78);
  margin-top: 4px;
  line-height: 1.5;
}
.lp-tutorial-exit {
  font: inherit;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.92);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 6px;
  padding: 7px 12px;
  cursor: pointer;
  transition: background 180ms var(--ease-pro), border-color 180ms var(--ease-pro);
}
.lp-tutorial-exit:hover {
  background: rgba(255,255,255,0.22);
  border-color: rgba(255,255,255,0.36);
}
.lp-tutorial-progress {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
}
.lp-tutorial-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--theme-blue), var(--theme-cyan));
  transform-origin: left;
  animation: lp-tutorial-progress 6500ms linear forwards;
}
@keyframes lp-tutorial-progress {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

/* Lock the break buttons during tutorial — purely visual cue.
   The disabled attribute does the real work. */
.lp-break.is-locked {
  cursor: not-allowed;
  opacity: 0.55;
}
.lp-break.is-locked:hover { background: inherit; }

/* ===== Ch1.5 Conveyor — beginner mode toggle ========================= */
.cv-mode {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 14px 0 0;
  padding: 8px 14px;
  background: var(--theme-gray-50);
  border: 1px solid var(--theme-gray-200);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--fg-strong);
  cursor: pointer;
  transition: background 180ms var(--ease-pro), border-color 180ms var(--ease-pro);
  user-select: none;
}
.cv-mode:hover { border-color: var(--theme-gray-300); background: #fff; }
.cv-mode input { accent-color: var(--theme-blue); width: 16px; height: 16px; cursor: pointer; }
.cv-mode-name { color: var(--fg-1); }
.cv-mode-sub {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--fg-2);
  letter-spacing: 0.02em;
  font-weight: 500;
}

/* When beginner-mode hides the late readout, drop counters from 4 to 3 cols */
.cv-readouts-beginner { grid-template-columns: repeat(3, 1fr); }

/* ===== Ch5 TrustMeter — downstream impact (replaces .tm-dash) ======== */
.tm-impact {
  background: #fff;
  border: 1.5px solid var(--theme-gray-200);
  border-radius: 12px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}
.tm-impact-head .tm-impact-eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-2);
}
.tm-impact-head .tm-impact-title {
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: -0.012em;
  color: var(--fg-1);
  margin-top: 4px;
  line-height: 1.2;
}
.tm-impact-grid {
  display: grid;
  grid-template-columns: 1fr 36px 1fr;
  gap: 12px;
  align-items: stretch;
}
.tm-impact-cell {
  background: var(--theme-gray-50);
  border: 1px solid var(--theme-gray-200);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  transition: border-color 220ms var(--ease-pro), background 220ms var(--ease-pro);
}
.tm-impact-cell .lab {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-2);
}
.tm-impact-cell .big {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1;
  color: var(--fg-1);
  font-variant-numeric: tabular-nums;
  margin-top: 2px;
}
.tm-impact-cell .big span {
  font-size: 16px;
  color: var(--fg-2);
  margin-left: 4px;
  font-weight: 600;
  letter-spacing: 0;
}
.tm-impact-cell .sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-strong);
  margin-top: 4px;
  line-height: 1.45;
  word-break: normal;
  overflow-wrap: anywhere;
}
.tm-impact-expected {
  background: #F4FBF5;
  border-color: rgba(49,162,76,0.3);
}
.tm-impact-expected .big { color: var(--theme-green); }
.tm-impact-actual.is-ok {
  background: #F4FBF5;
  border-color: rgba(49,162,76,0.3);
}
.tm-impact-actual.is-ok .big { color: var(--theme-green); }
.tm-impact-actual.is-stale {
  background: #FFFBF2;
  border-color: rgba(247,185,40,0.4);
}
.tm-impact-actual.is-stale .big { color: #8B5C00; }
.tm-impact-actual.is-wrong {
  background: #FEF5F7;
  border-color: rgba(228,30,63,0.4);
}
.tm-impact-actual.is-wrong .big { color: var(--theme-red); }

.tm-impact-arrow {
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  color: var(--fg-2);
}
.tm-impact-arrow.is-ok    { color: var(--theme-green); }
.tm-impact-arrow.is-stale { color: #B8770A; }
.tm-impact-arrow.is-wrong { color: var(--theme-red); }

.tm-impact-banner {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  padding: 8px 12px;
  border-radius: 6px;
  letter-spacing: 0.02em;
  line-height: 1.4;
}
.tm-impact-banner.err  { background: #FFF0F2; color: var(--theme-red); border: 1px solid rgba(228,30,63,0.3); }
.tm-impact-banner.warn { background: #FFFBF2; color: #8B5C00; border: 1px solid rgba(247,185,40,0.4); }
.tm-impact-banner.ok   { background: #F4FBF5; color: #08421E; border: 1px solid rgba(49,162,76,0.35); }

@media (max-width: 600px) {
  .tm-impact-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto 36px auto;
  }
  .tm-impact-arrow { transform: rotate(90deg); }
}

/* ===== Ch0 ByteTrace — wall-clock headline + skip stripe ============= */
.bt-headline {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  background: linear-gradient(180deg, #FAFBFC, #F3F5F8);
  border: 1px solid var(--theme-gray-200);
  border-radius: 12px;
  margin-bottom: 14px;
}
.bt-headline-cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 14px;
  border-radius: 10px;
  background: #fff;
  border: 1.5px solid var(--theme-gray-200);
  min-width: 0;
  transition:
    border-color 220ms var(--ease-pro),
    box-shadow 320ms var(--ease-pro);
}
.bt-headline-cell.is-active {
  border-color: var(--theme-blue);
  box-shadow: 0 8px 22px -16px rgba(8,102,255,0.45);
}
.bt-headline-cell.is-cold.is-active {
  border-color: #B8770A;
  box-shadow: 0 8px 22px -16px rgba(184,119,10,0.5);
}
.bt-headline-cell .lab {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-2);
}
.bt-headline-cell .big {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--fg-1);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.bt-headline-cell.is-cold .big { color: #B8770A; }
.bt-headline-cell.is-active .big { color: var(--theme-blue); }
.bt-headline-cell.is-cold.is-active .big { color: #B8770A; }
.bt-headline-cell .sub {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--fg-2);
  letter-spacing: 0.01em;
}
.bt-headline-vs {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--fg-3);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.bt-headline-speedup {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding-left: 14px;
  border-left: 1px dashed var(--theme-gray-300);
}
.bt-headline-speedup .big {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(120deg, #2D7DFF, #7C5CFF);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.bt-headline-speedup .lab {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-2);
}

@media (max-width: 720px) {
  .bt-headline {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto auto;
    gap: 10px;
  }
  .bt-headline-vs { text-align: center; }
  .bt-headline-speedup {
    border-left: none;
    border-top: 1px dashed var(--theme-gray-300);
    padding-left: 0;
    padding-top: 12px;
  }
}

/* Predicate-pushdown: animate the skipped stripe being struck through.
   The base markup has an existing <s> — we draw a red bar across when
   .is-active toggles on (when the trace particle reaches stop 5). */
.bt-strip-skip s { text-decoration: none; position: relative; color: var(--fg-3); }
.bt-strip-skip.is-active s {
  color: var(--theme-red);
  font-weight: 700;
}
.bt-strip-skip.is-active s::after {
  content: '';
  position: absolute;
  top: 50%; left: -2px; right: -2px;
  height: 1.6px;
  background: var(--theme-red);
  transform-origin: left center;
  transform: scaleX(0);
  animation: bt-strike 600ms cubic-bezier(0.32, 0.72, 0, 1) forwards;
}
@keyframes bt-strike { to { transform: scaleX(1); } }

/* ==========================================================================
   v13 — Animation drama + design elevation. Three big bets:
   1. Focus lighting: dim 99% of Scanner to near-invisible, glow the 1%.
   2. ShuffleSim overload: overflow animation + OVERLOADED label.
   3. Capstone drop: rows BURST outward instead of fading.
   Plus: chapter color theming, hero improvements, watermark affordance.
   ========================================================================== */

/* ===== (1) Scanner — DRAMATIC focus lighting ========================== */
/* The aha moment: "It only reads THIS column." 99 others → invisible.  */
.sc-disk.col .sc-c.dark {
  opacity: 0.06;
  transition: opacity 260ms ease-out, background 260ms ease-out;
}
.sc-disk.row .sc-c.dark { opacity: 1; } /* ensure reset on mode switch */

/* Target column (col[47] revenue) glows blue and pulses when being read */
.sc-disk.col .sc-c.target {
  background: #BFDBFE;
  opacity: 1;
  transition: opacity 180ms ease;
}
.sc-disk.col .sc-c.target.read {
  background: #2563EB;
  box-shadow: 0 0 18px rgba(37,99,235,0.85), inset 0 0 0 1px rgba(255,255,255,0.4);
  opacity: 1;
}
.sc-disk.col .sc-c.target.head {
  background: #60A5FA;
  box-shadow: 0 0 26px rgba(37,99,235,1.0), 0 0 52px rgba(37,99,235,0.55);
  animation: sc-col-pulse 0.55s ease-in-out infinite;
  opacity: 1;
}
@keyframes sc-col-pulse {
  0%, 100% { box-shadow: 0 0 26px rgba(37,99,235,1.0), 0 0 52px rgba(37,99,235,0.55); }
  50%       { box-shadow: 0 0 36px rgba(37,99,235,1.0), 0 0 70px rgba(37,99,235,0.70); }
}

/* Snappy: compressed cells still glow */
.sc-disk.col .sc-c.target.snappy.read {
  background: #1D4ED8;
  box-shadow: 0 0 22px rgba(29,78,216,1.0);
}

/* Highlight the "target: col[47] revenue" label when in col mode */
.sc-disk.col .sc-col47 {
  background: rgba(37,99,235,0.18);
  color: #60A5FA;
  border-color: rgba(37,99,235,0.5);
  box-shadow: 0 0 0 2px rgba(37,99,235,0.2);
  transition: all 280ms var(--ease-pro);
}

/* ===== (2) ShuffleSim — overloaded worker drama ====================== */
/* The aha moment: "Worker 0 drowns while everyone else idles."         */

/* Replace the qp-shake-pro (defined in v9) with more dramatic overflow */
.qp-overload rect:first-child {
  /* Anchor scaling to the bar's bottom edge so it grows UPWARD only and
     never lifts off the gray base socket below it. */
  transform-box: fill-box;
  transform-origin: 50% 100%;
  animation: qp-overflow-burst 1.1s ease-in-out infinite;
  filter: drop-shadow(0 0 12px rgba(228,30,63,0.8));
}
@keyframes qp-overflow-burst {
  0%, 100% {
    transform: none;
    filter: drop-shadow(0 0 12px rgba(228,30,63,0.8));
  }
  40% {
    transform: scaleY(1.14);
    filter: drop-shadow(0 0 20px rgba(228,30,63,1.0));
  }
  55% {
    transform: scaleX(1.04) scaleY(1.1);
    filter: drop-shadow(0 0 16px rgba(228,30,63,0.9));
  }
}

/* "OVERLOADED" label pulsing above the worker bar */
.qp-overload-label {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 800;
  fill: #E41E3F;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  animation: qp-label-blink 0.65s ease-in-out infinite;
}
@keyframes qp-label-blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ===== (3) Capstone — rows BURST at broken gates ==================== */
/* The aha moment: rows don't fade — they scatter and explode.          */
.lp-row.lp-drop {
  animation: lp-burst 0.65s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
@keyframes lp-burst {
  0%   {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.15);
  }
  35%  {
    opacity: 0.85;
    transform: translate(
      calc(-50% + var(--sx, 6%) * 0.5),
      calc(-50% + var(--sy, -8%) * 0.5)
    ) scale(1.3);
  }
  100% {
    opacity: 0;
    transform: translate(
      calc(-50% + var(--sx, 6%)),
      calc(-50% + var(--sy, -8%))
    ) scale(0.25);
  }
}

/* Gate flash on break toggle */
.lp-stage { overflow: hidden; position: relative; }

/* govblocked rows: spin out sideways */
.lp-row.lp-govblock {
  animation: lp-govblock-reject 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
@keyframes lp-govblock-reject {
  0%   { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  40%  { opacity: 0.9; transform: translate(-30%, calc(-50% - 12%)) scale(1.2) rotate(-8deg); }
  100% { opacity: 0; transform: translate(20%, calc(-50% - 20%)) scale(0.2) rotate(20deg); }
}

/* ===== Chapter color theming in hero ================================ */
/* The hero eyebrow + underline bar adopt the chapter's --chapter-accent.
   Each chapter passes chapter.hex as --chapter-accent via inline style. */
.hero { --chapter-accent: var(--theme-blue); }
.hero-eyebrow { color: var(--chapter-accent); }
.hero-eyebrow::before { background: var(--chapter-accent); }
.hero::after { background: var(--chapter-accent); }
.hero-meta .m .v .chip {
  background: color-mix(in oklab, var(--chapter-accent) 12%, #fff);
  color: var(--chapter-accent);
  border: 1px solid color-mix(in oklab, var(--chapter-accent) 28%, transparent);
}

/* ===== Watermark drag affordance — pulsing blue handle ============== */
/* First-time visitor has no idea the watermark line is draggable.
   A subtle glow+scale pulse on the handle calls attention to it.      */
.wm-stage svg rect[fill="var(--theme-blue)"] {
  /* The handle rect: animate to indicate drag affordance */
  animation: wm-beckon 2.4s ease-in-out infinite;
}
@keyframes wm-beckon {
  0%, 100% { filter: drop-shadow(0 2px 6px rgba(8,102,255,0.45)); }
  50%       { filter: drop-shadow(0 4px 16px rgba(8,102,255,0.85)); }
}

/* ===== ByteTrace — warm vs cold color drama ========================= */
/* Cold cache numbers should read DANGER, warm should read CALM.        */
.bt-headline-cell.is-cold .big { color: #DC2626; }
.bt-headline-cell.is-cold.is-active .big { color: #B91C1C; }
.bt-headline-cell.is-cold { border-color: rgba(220,38,38,0.35); }
.bt-headline-cell.is-cold.is-active {
  border-color: #B91C1C;
  box-shadow: 0 8px 22px -16px rgba(220,38,38,0.55);
}
.bt-headline-speedup .big {
  background: linear-gradient(120deg, #2563EB, #7C3AED);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ===== Scanner efficiency readout — make the ratio dramatic ========= */
.sc-stat.good .sc-stat-v { color: var(--theme-green); }
.sc-stat.warn .sc-stat-v { color: #B91C1C; }

/* ===== Trust meter: downstream impact panel — bigger number ========= */
.tm-impact-cell .big { font-size: 36px; }
.tm-impact-actual.is-wrong .big { font-size: 42px; }

/* ===== Panel eyebrow: consistent label sizing ======================= */
.panel-head { border-bottom: 2px solid var(--theme-gray-200); }
.panel-head .panel-title .dot {
  width: 8px; height: 8px;
  background: var(--theme-blue);
  border-radius: 50%;
}

/* ===== Reduced motion guards for new animations ==================== */
@media (prefers-reduced-motion: reduce) {
  .sc-disk.col .sc-c.target.head { animation: none; }
  .qp-overload rect:first-child { animation: none; }
  .qp-overload-label { animation: none; }
  .lp-row.lp-drop { animation: none; opacity: 0; }
  .lp-row.lp-govblock { animation: none; opacity: 0; }
  .wm-stage svg rect[fill="var(--theme-blue)"] { animation: none; }
}

/* ==========================================================================
   v22 — Collapsible sidebar
   The sidebar collapses to a 64px rail with chapter numbers only.
   Toggled via [ key, persisted in localStorage as 'de-course-sb'.
   ========================================================================== */

.sb-brand-meta { min-width: 0; flex: 1; }

.sb-collapse-btn {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  background: #fff;
  border: 1px solid var(--theme-gray-200);
  border-radius: 6px;
  cursor: pointer;
  color: var(--fg-2);
  font-size: 14px;
  line-height: 1;
  padding: 0;
  font-family: inherit;
  transition: background 160ms var(--ease-pro), border-color 160ms var(--ease-pro), color 160ms var(--ease-pro);
}
.sb-collapse-btn:hover {
  background: var(--theme-gray-100);
  border-color: var(--theme-gray-300);
  color: var(--fg-1);
}
.sb-collapse-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px color-mix(in oklab, var(--theme-blue) 35%, transparent);
}
.sb-collapse-icon { font-weight: 700; transform: translateY(-1px); }

/* Collapsed sidebar layout */
.app.sb-collapsed { grid-template-columns: 64px 1fr; }
.sb.collapsed { padding: 14px 8px; }
.sb.collapsed .sb-brand {
  flex-direction: column;
  gap: 8px;
  padding: 0 0 12px;
  margin-bottom: 10px;
  justify-content: center;
}
.sb.collapsed .sb-eyebrow { display: none; }
.sb.collapsed .sb-nav { gap: 4px; }
.sb.collapsed .sb-item {
  grid-template-columns: 1fr;
  justify-items: center;
  padding: 6px 4px;
  gap: 0;
}
.sb.collapsed .sb-item::before {
  left: -4px;
}
.sb.collapsed .sb-num {
  width: 36px;
  height: 32px;
  font-size: 11.5px;
}
.sb.collapsed .sb-text,
.sb.collapsed .sb-time { display: none; }

/* Mobile override: collapsed state still uses the horizontal row nav */
@media (max-width: 900px) {
  .app.sb-collapsed { grid-template-columns: 1fr; }
  .sb.collapsed { padding: 14px; }
  .sb.collapsed .sb-brand {
    flex-direction: row;
    padding: 0 6px 12px;
    margin-bottom: 10px;
    gap: 10px;
  }
  .sb-collapse-btn { display: none; }
  .sb.collapsed .sb-nav { flex-direction: row; gap: 4px; }
  .sb.collapsed .sb-item { grid-template-columns: 28px auto auto; padding: 6px 10px; }
  .sb.collapsed .sb-num { width: 28px; height: 24px; font-size: 10.5px; }
  .sb.collapsed .sb-text { display: block; }
  .sb.collapsed .sb-time { display: block; }
}

/* ==========================================================================
   v22 — Discovery Speedrun: Tip & Show Solution affordances
   Always-available escape hatches so the quiz is friendly, not punishing.
   ========================================================================== */

.ds-help-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}
.ds-help-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 7px;
  color: #C8D2E0;
  font: 600 11.5px var(--font-mono);
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 160ms var(--ease-pro), border-color 160ms var(--ease-pro), color 160ms var(--ease-pro);
}
.ds-help-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
}
.ds-help-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(125, 211, 252, 0.55);
}
.ds-help-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  background: rgba(255, 255, 255, 0.04);
}
.ds-help-btn:disabled:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.14);
  color: #C8D2E0;
}
.ds-help-btn .cost {
  color: #FFB454;
  font-weight: 700;
}
.ds-help-btn.is-tip { border-color: rgba(125, 211, 252, 0.35); color: #BAE6FD; }
.ds-help-btn.is-tip:hover { background: rgba(125, 211, 252, 0.12); }
.ds-help-btn.is-solution { border-color: rgba(255, 180, 84, 0.35); color: #FFD18B; }
.ds-help-btn.is-solution:hover { background: rgba(255, 180, 84, 0.12); }

.ds-tip-banner {
  margin-top: 10px;
  padding: 10px 12px;
  background: rgba(125, 211, 252, 0.08);
  border: 1px solid rgba(125, 211, 252, 0.25);
  border-radius: 8px;
  font: 500 12px var(--font-sans);
  color: #BAE6FD;
  line-height: 1.5;
}
.ds-tip-banner code {
  font: 700 12px var(--font-mono);
  color: #7DD3FC;
  background: rgba(0, 0, 0, 0.25);
  padding: 1px 6px;
  border-radius: 4px;
}
.ds-solution-banner {
  margin-top: 8px;
  padding: 10px 12px;
  background: rgba(255, 180, 84, 0.08);
  border: 1px solid rgba(255, 180, 84, 0.3);
  border-radius: 8px;
  font: 500 12px var(--font-sans);
  color: #FFD18B;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ds-solution-banner .lab {
  font: 700 10px var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #F7B928;
}
.ds-solution-banner code {
  font: 700 13px var(--font-mono);
  color: #FFE4B5;
}
.ds-solution-banner .why {
  color: #C8D2E0;
  font-size: 11.5px;
  font-weight: 400;
}
.ds-solution-banner .ds-solution-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}