/* AI-first QA handouts — tokens from projects/design-system-home/design-system/css/tokens.css */

:root {
  --color-surface: #151414;
  --color-header-surface: #21201f;
  --color-surface-soft: #262523;
  --color-panel-bar: #413f3c;
  --color-text: #f1f5f9;
  --color-text-muted: rgba(255, 255, 255, 0.45);
  --color-primary: #e8e4df;
  --color-primary-on: #1c1917;
  --color-success: #4ade80;
  --color-warning: #f59e0b;
  --color-danger: #f87171;
  --color-info: #61b6fb;
  --color-border: rgba(255, 255, 255, 0.1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --font-sans: "Segoe UI", system-ui, -apple-system, Tahoma, Geneva, Verdana, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --layer-skill: #61b6fb;
  --layer-rule: #ff574f;
  --layer-rag: #ffd833;
  --layer-adr: #a65ac4;
  --layer-ctx: #94a3b8;

  --indicator-close: #ff5f57;
  --indicator-minimize: #febc2e;
  --indicator-maximize: #28c840;
}

*,
*::before,
*::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: #0c0b0b;
  color: var(--color-text);
  font-family: var(--font-sans);
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
}

html { scroll-behavior: smooth; }

body.deck {
  height: auto;
  min-height: 100vh;
  overflow: auto;
}

@page {
  size: A4 landscape;
  margin: 0;
}

.sheet {
  width: 297mm;
  height: 210mm;
  margin: 16px auto;
  padding: 9mm 11mm 8mm;
  background: var(--color-surface);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  gap: 7px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  scroll-margin-top: 12px;
}

.hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex: 0 0 auto;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--color-border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand svg { width: 22px; height: 22px; flex-shrink: 0; }

.brand__name {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-primary);
}

.brand__kicker {
  margin-top: 1px;
  font-size: 10px;
  color: var(--color-text-muted);
}

.hd__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 20px;
  padding: 0 8px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  background: color-mix(in srgb, var(--chip, var(--color-text)) 8%, transparent);
}

.chip--on {
  color: var(--color-text);
  border-color: color-mix(in srgb, var(--chip) 55%, transparent);
}

.chip::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--chip, var(--color-text-muted));
  opacity: 0.45;
}

.chip--on::before { opacity: 1; }

.chip--skill { --chip: var(--layer-skill); }
.chip--rule  { --chip: var(--layer-rule); }
.chip--rag   { --chip: var(--layer-rag); }
.chip--adr   { --chip: var(--layer-adr); }
.chip--ctx   { --chip: var(--layer-ctx); }

.hd__id {
  font-size: 10px;
  color: var(--color-text-muted);
}

.h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.lead {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--color-text-muted);
  max-width: 210mm;
}

.lead strong { color: var(--color-text); font-weight: 600; }

.body {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  gap: 8px;
}

.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: 1.15fr 1.15fr 0.9fr; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-21 { grid-template-columns: 0.92fr 1.08fr; }
.grid-12 { grid-template-columns: 1.15fr 0.85fr; }
.grid-rail { grid-template-columns: 42mm 1fr; }

.card, .panel {
  min-width: 0;
  min-height: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-text) 2.5%, var(--color-surface));
  overflow: hidden;
}

.card {
  display: flex;
  flex-direction: column;
  padding: 10px 11px 11px;
  gap: 6px;
  border-top: 2px solid var(--accent, var(--color-border));
}

.card--skill { --accent: var(--layer-skill); }
.card--rule  { --accent: var(--layer-rule); }
.card--rag   { --accent: var(--layer-rag); }
.card--adr   { --accent: var(--layer-adr); }
.card--ctx   { --accent: var(--layer-ctx); }
.card--muted { --accent: var(--color-border); }

.card__label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.card__name {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent, var(--color-text));
}

.card__q {
  font-size: 11px;
  color: var(--color-text-muted);
}

.card p, .card li, .panel p, .panel li {
  margin: 0;
  font-size: 11.5px;
  line-height: 1.38;
}

.card ul, .panel ul {
  margin: 0;
  padding-left: 1.1em;
  color: var(--color-text);
}

.muted { color: var(--color-text-muted); }
.tiny { font-size: 10.5px; line-height: 1.35; }

code, .path {
  font-family: var(--font-mono);
  font-size: 10.5px;
  background: var(--color-surface-soft);
  padding: 1px 5px;
  border-radius: 4px;
}

.panel {
  display: flex;
  flex-direction: column;
}

.panel__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 26px;
  height: 26px;
  margin: 0;
  padding: 0 8px;
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-text) 4%, transparent);
}
article.panel { margin: 0; }

.dots { display: inline-flex; gap: 5px; }
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.dot--r { background: var(--indicator-close); }
.dot--y { background: var(--indicator-minimize); }
.dot--g { background: var(--indicator-maximize); }

.panel__title {
  margin: 0;
  flex: 1;
  min-width: 0;
  text-align: right;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.panel__body {
  padding: 9px 11px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.45;
  color: #e6edf3;
  white-space: pre-wrap;
}

.flow {
  display: flex;
  align-items: stretch;
  gap: 6px;
}

.flow__node {
  flex: 1;
  min-width: 0;
  padding: 8px 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-soft);
  font-size: 11px;
  line-height: 1.35;
}

.flow__node b {
  display: block;
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent, var(--color-text-muted));
  margin-bottom: 3px;
}

.flow__arrow {
  flex: 0 0 14px;
  align-self: center;
  color: var(--color-text-muted);
  font-size: 14px;
}

.tower {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column-reverse;
  gap: 5px;
}

.tower__item {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  border-left-width: 3px;
  border-left-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 7%, var(--color-surface-soft));
  font-size: 11.5px;
  opacity: 0.28;
}

.tower__item.is-on { opacity: 1; }
.tower__item--skill { --accent: var(--layer-skill); }
.tower__item--rule  { --accent: var(--layer-rule); }
.tower__item--rag   { --accent: var(--layer-rag); }
.tower__item--adr   { --accent: var(--layer-adr); }

.tower__item b { font-size: 12px; }

.kv {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}

.kv th, .kv td {
  text-align: left;
  padding: 4px 6px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.kv th {
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.kv td:first-child { white-space: nowrap; }

.kv--dense th, .kv--dense td {
  padding: 3px 5px;
  font-size: 10.5px;
  line-height: 1.32;
}
.kv--dense td:first-child {
  font-family: var(--font-mono);
  font-size: 10px;
}
.kv td.hall {
  white-space: normal;
  color: var(--color-danger);
  font-family: var(--font-mono);
  font-size: 10px;
}
.kv td.keep {
  white-space: normal;
  font-size: 10.5px;
}

pre.pre--sm {
  font-size: 9.5px;
  line-height: 1.4;
}

.mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 16px;
  height: 16px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
}

.mark--y { background: color-mix(in srgb, var(--color-success) 22%, transparent); color: var(--color-success); }
.mark--n { color: var(--color-text-muted); }

.do, .dont {
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-size: 11.5px;
  line-height: 1.38;
}

.do {
  border-left: 3px solid var(--color-success);
  background: color-mix(in srgb, var(--color-success) 8%, transparent);
}

.dont {
  border-left: 3px solid var(--color-danger);
  background: color-mix(in srgb, var(--color-danger) 8%, transparent);
}

.panel--bad {
  border-color: color-mix(in srgb, var(--color-danger) 45%, var(--color-border));
}
.panel--bad .panel__title { color: var(--color-danger); }
.panel--good {
  border-color: color-mix(in srgb, var(--color-success) 45%, var(--color-border));
}
.panel--good .panel__title { color: var(--color-success); }

.do b, .dont b { display: block; margin-bottom: 2px; font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; }

.ft {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  flex: 0 0 auto;
  padding-top: 5px;
  border-top: 1px solid var(--color-border);
  font-size: 10px;
  color: var(--color-text-muted);
}

.cols-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.stack-note {
  font-size: 10.5px;
  color: var(--color-text-muted);
  line-height: 1.35;
}

h2.sec {
  margin: 0 0 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.prompt {
  margin: 0;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: #1a1917;
  border: 1px solid rgba(255,255,255,0.08);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.45;
  color: #e6edf3;
}

.pack {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.pack code {
  background: var(--color-surface-soft);
  font-size: 10px;
}

@media screen {
  body { padding: 12px 0 32px; }
}

@media print {
  html, body { background: var(--color-surface); width: 297mm; height: 210mm; }
  .sheet {
    margin: 0;
    border: 0;
    border-radius: 0;
    page-break-after: always;
    break-after: page;
  }
  .no-print { display: none !important; }
}

/* index gallery */
.gallery {
  width: min(920px, calc(100% - 48px));
  margin: 32px auto 64px;
  color: var(--color-text);
}
.gallery h1 { font-size: 28px; margin: 0 0 8px; }
.gallery p { color: var(--color-text-muted); }
.gallery a { color: var(--color-info); }
.gallery ol { line-height: 1.7; }
.gallery .sheet-link {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  text-decoration: none;
  color: var(--color-info);
  cursor: pointer;
  margin: 8px 0;
  background: var(--color-surface);
}
.gallery .sheet-link:hover { background: var(--color-surface-soft); }
.gallery .sheet-link b { color: var(--color-info); text-decoration: underline; }
.gallery .sheet-link span { color: var(--color-text-muted); font-size: 14px; }

/* 36 · interactive lab (one viewport, not A4) */
@media screen {
  body.lab { padding: 0; }
}
body.lab {
  height: auto;
  min-height: 100vh;
  overflow: auto;
  background: #0c0b0b;
}
.lab-screen {
  width: 100%;
  max-width: none;
  height: auto;
  min-height: 100vh;
  overflow: visible;
  margin: 0 auto;
  padding: 8px 14px 6px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.lab-back {
  font-size: 11px;
  color: var(--color-info);
  text-decoration: none;
}
.lab-back:hover { text-decoration: underline; }
.lab-block {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 6px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
}
.lab-block--result { flex: 1 1 auto; }
.lab-toolbar {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.lab-toolbar__row {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 8px 12px;
  min-width: 0;
}
.lab-prompt .panel__bar {
  height: 32px;
  flex-basis: 32px;
}
.lab-prompt .lab-ide {
  flex: 0 0 auto;
  height: 24px;
  padding: 1px;
}
.lab-prompt .lab-ide__btn {
  height: 22px;
  padding: 0 9px;
  font-size: 11px;
}
.lab-prompt .panel__body {
  padding: 8px 10px 9px;
  gap: 8px;
}
.lab-prompt .prompt {
  padding: 8px 10px;
  font-size: 13px;
}
.lab-toolbar__row--controls {
  justify-content: space-between;
}
.lab-dock {
  position: sticky;
  top: 0;
  z-index: 7;
  flex: 0 0 auto;
  align-self: stretch;
  width: 100%;
  padding: 6px 0 8px;
  background: #0c0b0b;
  box-shadow: 0 10px 18px #0c0b0b;
}
.lab-sec {
  margin: 0;
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.25;
}
.lab-sec__kicker {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--color-text-muted);
}
.lab-sec__kicker::before {
  content: "· ";
  color: var(--color-text-muted);
}
.lab-ai-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.lab-ide {
  display: inline-flex;
  flex-shrink: 0;
  padding: 2px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  gap: 2px;
  background: color-mix(in srgb, var(--layer-rule) 8%, transparent);
}
.lab-ide__btn {
  appearance: none;
  cursor: pointer;
  height: 26px;
  padding: 0 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--color-text-muted);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
}
.lab-ide__btn.is-on {
  background: color-mix(in srgb, var(--layer-rule) 28%, transparent);
  color: var(--color-text);
}
.lab-screen[data-rule-ide="cursor"] [data-flavor]:not([data-flavor="cursor"]),
.lab-screen[data-rule-ide="cline"] [data-flavor]:not([data-flavor="cline"]),
.lab-screen[data-rule-ide="claude"] [data-flavor]:not([data-flavor="claude"]),
.lab-screen[data-rule-ide="codex"] [data-flavor]:not([data-flavor="codex"]) {
  display: none !important;
}
.lab-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  align-items: stretch;
}
.lab-meta .panel { min-height: 180px; }
.lab-switches {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  flex: 1 1 auto;
  min-width: 0;
}
.lab-sw {
  appearance: none;
  cursor: pointer;
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 5px;
  min-width: 0;
  padding: 4px 10px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--sw, var(--color-text)) 8%, transparent);
  color: var(--color-text-muted);
  font-family: inherit;
  text-align: left;
}
.lab-sw.is-on {
  color: var(--color-text);
  border-color: color-mix(in srgb, var(--sw) 55%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--sw) 22%, transparent);
}
.lab-sw--ctx   { --sw: var(--layer-ctx); }
.lab-sw--skill { --sw: var(--layer-skill); }
.lab-sw--rule  { --sw: var(--layer-rule); }
.lab-sw--rag   { --sw: var(--layer-rag); }
.lab-sw--adr   { --sw: var(--layer-adr); }
.lab-sw__name {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.lab-sw__q {
  font-size: 10px;
  color: var(--color-text-muted);
}
.lab-sw.is-on .lab-sw__q { color: color-mix(in srgb, var(--sw) 80%, var(--color-text)); }
.lab-presets {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  justify-content: flex-end;
}
.lab-presets__lbl {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.lab-preset {
  appearance: none;
  cursor: pointer;
  height: 26px;
  padding: 0 9px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  font-family: inherit;
  font-size: 12px;
}
.lab-preset.is-on,
.lab-preset:hover {
  color: var(--color-text);
  border-color: color-mix(in srgb, var(--color-text) 28%, transparent);
}
.lab-diag {
  margin: 0;
  font-size: 15px;
  line-height: 1.35;
  font-weight: 600;
}
.lab-diag.is-ok { color: var(--color-success); }
.lab-diag.is-bad { color: var(--color-danger); }
.lab-out {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 0;
}
.lab-file { min-height: 0; }
.lab-file--extra {
  margin-top: -2px;
  border-style: dashed;
}
.lab-file[data-slot="cli"] .panel__body {
  background: #121110;
}
.lab-file[data-slot="page"] .lab-code,
.lab-file[data-extra="page"] .lab-code,
.lab-file[data-slot="home"] .lab-code,
.lab-file[data-slot="gradle"] .lab-code,
.lab-file[data-slot="props"] .lab-code,
.lab-file[data-slot="ci"] .lab-code {
  font-size: 11.5px;
}
.lab-side {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.lab-code-wrap {
  flex: 1;
  min-height: 0;
  overflow: auto;
}
/*
 * LOCK lab-wrap: do not wrap Java in 36-login-lab.
 * pre-wrap + break-word in a ~220px column splits
 * shouldShowErrorWhenPasswordIsWrong and fluent chains into fake blank lines.
 * Guard: docs/handouts/check-lab-wrap.py
 */
body.lab pre,
body.lab .lab-code,
body.lab .lab-ln {
  white-space: pre !important;
  overflow-wrap: normal !important;
  word-break: normal !important;
}
.lab-code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.48;
  color: #e6edf3;
  tab-size: 2;
  overflow-x: auto;
}
.lab-ln {
  display: block;
  box-sizing: border-box;
  width: max-content;
  min-width: 100%;
  min-height: 1.5em;
  padding: 0 8px;
  margin: 0 -8px;
  border-radius: 4px;
}
.lab-ln--ok { color: #e6edf3; }
.lab-ln--dim { opacity: 0.55; }
/* Green = new lines in test/page. Existing methods/fields stay dim.
   Same slots in ideal and expected, otherwise untouched props/gradle
   look like a diff when layers are on. */
.lab-cell--ideal [data-slot="test"] .lab-ln--ok,
.lab-cell--ideal [data-slot="page"] .lab-ln--ok,
.lab-cell--expected [data-slot="test"] .lab-ln--ok,
.lab-cell--expected [data-slot="page"] .lab-ln--ok {
  background: color-mix(in srgb, var(--color-success) 12%, transparent);
  box-shadow: inset 3px 0 0 var(--color-success);
}
.lab-ln--bad {
  background: color-mix(in srgb, var(--color-danger) 12%, transparent);
  box-shadow: inset 3px 0 0 var(--color-danger);
}
.lab-cell--ideal [data-slot="test"] .lab-ln--ok .tok--cmt,
.lab-cell--ideal [data-slot="page"] .lab-ln--ok .tok--cmt,
.lab-cell--expected [data-slot="test"] .lab-ln--ok .tok--cmt,
.lab-cell--expected [data-slot="page"] .lab-ln--ok .tok--cmt { color: #86efac; }
.lab-ln--bad .tok--cmt { color: #fca5a5; }
.tok--cmt { color: #6a9955; }
.tok--str { color: #ce9178; }
.tok--kw  { color: #569cd6; }
.tok--ann { color: #dcdcaa; }
.tok--fn  { color: #dcdcaa; }
.tok--type { color: #4ec9b0; }
.tok--num { color: #b5cea8; }
.lab-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.lab-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
  font-size: 12.5px;
  line-height: 1.35;
}
.lab-cell .panel--good,
.lab-out .panel--good { border-color: color-mix(in srgb, var(--color-success) 45%, var(--color-border)); }
.lab-cell .panel--bad,
.lab-out .panel--bad { border-color: color-mix(in srgb, var(--color-danger) 45%, var(--color-border)); }

.lab-src-lead {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--color-text-muted);
}
.lab-sources,
.lab-ctx {
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: visible;
}
.lab-src {
  cursor: pointer;
  position: relative;
  z-index: 0;
  min-width: 0;
  overflow: visible;
}
.lab-src:focus-within { z-index: 8; }
.lab-src--ctx   { --sw: var(--layer-ctx); }
.lab-src--skill { --sw: var(--layer-skill); }
.lab-src--rule  { --sw: var(--layer-rule); }
.lab-src--rag   { --sw: var(--layer-rag); }
.lab-src--adr   { --sw: var(--layer-adr); }
.lab-src .panel__bar {
  position: relative;
  overflow: visible;
}
.panel.lab-src { overflow: visible; }
.lab-src.is-off {
  opacity: 0.4;
}
.lab-src.is-off .panel__title { color: var(--color-danger); }
.lab-src__hd { position: relative; cursor: zoom-in; }
.lab-src:not(.is-off) .lab-src__state { display: none; }
.lab-src__state {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-danger);
}
.lab-src__pop {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  z-index: 8;
  width: auto;
  max-height: min(380px, 55vh);
  overflow: auto;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #1c1b1a;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55);
}
.lab-src.is-pinned { z-index: 10; }
.lab-src__hd:focus-within .lab-src__pop,
.lab-src.is-pinned .lab-src__pop {
  display: block;
}
.lab-screen:has(.lab-src.is-pinned) .lab-src:not(.is-pinned) .lab-src__pop {
  display: none !important;
}
.lab-stack {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}
.lab-stack .panel { min-height: 0; }
.lab-stack pre {
  font-size: 11px;
  line-height: 1.4;
}

.lab-stage {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.lab-ai {
  padding: 6px 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  border-top: 2px solid var(--layer-skill);
  background: color-mix(in srgb, var(--color-text) 2.5%, var(--color-surface));
}
/* File pop drops over compare headers; lift the ancestor above sticky .lab-legend */
.lab-ai:has(.lab-src:focus-within),
.lab-ai:has(.lab-src.is-pinned),
.lab-row:has(.lab-src:focus-within),
.lab-row:has(.lab-src.is-pinned) {
  position: relative;
  z-index: 8;
}
.lab-ai__hd { margin-bottom: 6px; }
.lab-ai .lab-sec { font-size: 15px; }
.lab-ai .lab-src-lead { margin: 0; font-size: 11.5px; }
.lab-ai .panel__body { padding: 6px 8px 8px; }
.lab-ai .lab-code { font-size: 10.5px; line-height: 1.35; }
.lab-ai .lab-src__load { font-size: 10px; }
.lab-ai__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}
.lab-why-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  align-items: start;
}
.lab-why-bar {
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  border-top: 2px solid var(--color-danger);
  background: color-mix(in srgb, var(--color-text) 2.5%, var(--color-surface));
}
.lab-why-bar--ctx { border-top-color: var(--layer-ctx); }
.lab-why-bar--ctx.is-off { border-top-color: var(--color-danger); }
.lab-why-bar--ideal,
.lab-why-bar.is-match { border-top-color: var(--color-success); }
.lab-why-bar .lab-sec { font-size: 15px; }
.lab-why-bar .lab-src-lead { margin: 0; font-size: 11.5px; }
.lab-why-bar .lab-diag { margin-top: 4px; font-size: 13px; }
.lab-compare {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.lab-legend,
.lab-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  align-items: start;
}
.lab-legend {
  position: sticky;
  top: var(--lab-dock-h, 52px);
  z-index: 6;
  padding: 6px 0 2px;
  background: #0c0b0b;
}
.lab-legend__col {
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-text) 2.5%, var(--color-surface));
}
.lab-legend .lab-sec { font-size: 15px; }
.lab-legend--ctx { border-top: 2px solid var(--layer-ctx); }
.lab-legend--ideal { border-top: 2px solid var(--color-success); }
.lab-legend--expected { border-top: 2px solid var(--color-warning); }
.lab-legend--expected.is-match { border-top-color: var(--color-success); }
.lab-cell {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.lab-row > .lab-src,
.lab-row > .lab-cell {
  margin: 0;
  align-self: start;
}
.lab-row .lab-src,
.lab-row .lab-file {
  min-width: 0;
}
.lab-row .lab-src .panel__body { overflow-x: auto; }
.lab-row .lab-code { font-size: 11px; }

.lab-why {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1 1 auto;
  margin-top: 8px;
}
.lab-why-row .lab-why { margin-top: 6px; }
.lab-why-row .lab-why__gaps {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
}
.lab-why-row .lab-gap { padding: 6px 8px 8px; }
.lab-why-row .lab-gap__got,
.lab-why-row .lab-gap__why { font-size: 11.5px; }
.lab-why-row .lab-list li { font-size: 12px; gap: 4px; }
.lab-why__ok,
.lab-why__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.35;
}
.lab-why__ok { color: var(--color-success); }
.lab-why__note { color: var(--color-warning); }
.lab-why__gaps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 8px;
  align-items: stretch;
}
.lab-why__holds {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}
.lab-why__sub {
  margin: 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.lab-gap {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  box-sizing: border-box;
  padding: 8px 10px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--sw, var(--color-danger));
  background: color-mix(in srgb, var(--sw, var(--color-danger)) 7%, transparent);
}
.lab-gap--ctx { --sw: var(--layer-ctx); }
.lab-gap--skill { --sw: var(--layer-skill); }
.lab-gap--rule { --sw: var(--layer-rule); }
.lab-gap--rag { --sw: var(--layer-rag); }
.lab-gap--adr { --sw: var(--layer-adr); }
.lab-gap__hd {
  display: flex;
  align-items: center;
  gap: 8px;
}
.lab-gap__title {
  margin: 0;
  font-size: 13px;
  font-weight: 650;
  line-height: 1.3;
}
.lab-gap__ideal,
.lab-gap__got {
  margin: 0;
  font-size: 12px;
  line-height: 1.35;
}
.lab-gap__ideal span,
.lab-gap__got span {
  display: inline-block;
  min-width: 6.2em;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.lab-gap__got { color: var(--color-danger); }
.lab-gap__why {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.35;
}
.lab-src__pop-file {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-info);
}
.lab-src__pop pre {
  margin: 0;
  font-size: 12px;
  line-height: 1.4;
  white-space: pre;
  overflow-x: auto;
}
.lab-src__file {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.35;
  color: var(--color-text-muted);
  word-break: break-word;
}
.panel .lab-src__load,
.lab-src__load {
  flex: 0 0 auto;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.48;
  min-height: 1.5em;
  color: #6a9955;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lab-src__load::before { content: "// "; }
.lab-file .lab-src__load {
  white-space: normal;
  overflow: visible;
  text-overflow: unset;
}
.lab-src[data-slot="props"] .lab-src__load::before,
.lab-file[data-slot="props"] .lab-src__load::before,
.lab-src[data-slot="cli"] .lab-src__load::before,
.lab-file[data-slot="cli"] .lab-src__load::before,
.lab-src[data-slot="ci"] .lab-src__load::before,
.lab-file[data-slot="ci"] .lab-src__load::before { content: "# "; }
.lab-src .lab-code,
.lab-src pre {
  font-size: 11px;
  line-height: 1.48;
}

@media (max-width: 1400px) {
  .lab-ai__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 900px) {
  .lab-legend,
  .lab-row,
  .lab-ai__grid,
  .lab-why-row {
    grid-template-columns: 1fr;
  }
  .lab-toolbar__row,
  .lab-switches,
  .lab-presets {
    flex-wrap: wrap;
  }
}

@media print {
  body.lab { display: none; }
}

/* 50 · glossary (scrollable doc, not A4) */
body.gloss {
  height: auto;
  min-height: 100vh;
  overflow: auto;
  background: #0c0b0b;
}
.gloss-screen {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 12px 0 72px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.gloss-screen > .hd {
  padding-top: 8px;
}
.gloss-lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.45;
  color: var(--color-text);
}
.gloss-lead strong { font-weight: 650; }
.gloss-canon {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  overflow: hidden;
}
.gloss-search {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.gloss-search input {
  flex: 1 1 240px;
  min-width: 0;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
  font-size: 15px;
}
.gloss-search input:focus {
  outline: 2px solid color-mix(in srgb, var(--color-info) 55%, transparent);
  outline-offset: 1px;
}
.gloss-search__hint {
  margin: 0;
  font-size: 13px;
  color: var(--color-text-muted);
}
.gloss-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.gloss-toc a {
  display: inline-block;
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  color: var(--color-info);
  font-size: 13px;
  text-decoration: none;
}
.gloss-toc a:hover { background: var(--color-surface-soft); }
.gloss-sec {
  margin: 10px 0 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  scroll-margin-top: 12px;
}
.gloss-terms {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.term {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  overflow: hidden;
  scroll-margin-top: 12px;
}
.term__bar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 14px 8px;
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-text) 4%, transparent);
}
.term__name {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.term__aka {
  margin: 0;
  font-size: 12px;
  color: var(--color-text-muted);
  text-align: right;
}
.term__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.term__col {
  padding: 12px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.term__col--gen {
  border-right: 1px solid var(--color-border);
}
.term__col h4 {
  margin: 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.term__col--ex h4 { color: var(--color-info); }
.term__col p, .term__col li {
  margin: 0;
  font-size: 14px;
  line-height: 1.45;
}
.term__col ul {
  margin: 0;
  padding-left: 1.15em;
}
.term__col code {
  font-size: 12px;
}
.gloss-empty {
  display: none;
  margin: 8px 0 0;
  color: var(--color-text-muted);
}
body.gloss.is-empty .gloss-empty { display: block; }
@media (max-width: 800px) {
  .term__grid { grid-template-columns: 1fr; }
  .term__col--gen {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }
  .term__aka { text-align: left; }
}
.tiny { font-size: 12.5px; line-height: 1.4; }
.muted { color: var(--color-text-muted); }
.tiny a { color: var(--color-info); }

@media print {
  .gloss-search, .gloss-toc, .lab-back { display: none !important; }
  .term { break-inside: avoid; }
}