/* ==========================================================================
   aide.css — Page « Guide du Jeu de la vie »
   Même palette que l'application (sombre, vert #4CAF50, bleu #6cf).
   ========================================================================== */
:root {
  --bg: #1a1a1a; --panel: #222; --border: #383838;
  --text: #ececec; --muted: #a9a9a9;
  --accent: #4CAF50; --accent-ink: #10220f; --accent-2: #66ccff;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 70px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.65 var(--font); }
a { color: var(--accent-2); }
code { background: #111; color: var(--accent-2); padding: 1px 6px; border-radius: 4px; font-size: .9em; }
kbd { font: 600 .8em/1 ui-monospace, Menlo, monospace; background: #111; border: 1px solid #555; border-bottom-width: 2px; border-radius: 4px; padding: 2px 6px; color: var(--accent-2); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* En-tête */
.top { position: sticky; top: 0; z-index: 10; background: #202020ee; border-bottom: 1px solid var(--border); backdrop-filter: blur(4px); }
.top-inner { max-width: 1200px; margin: 0 auto; padding: 10px 18px; display: flex; align-items: center; gap: 10px; }
.brand { color: var(--accent); font-weight: 700; text-decoration: none; }
.sep { color: var(--muted); }
.btn { margin-left: auto; display: inline-block; padding: 7px 14px; border-radius: 6px; background: #333; color: var(--text); text-decoration: none; font-size: .92rem; }
.btn.primary { background: var(--accent); color: var(--accent-ink); font-weight: 600; }
.btn:focus-visible, a:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 2px; }

/* Mise en page : sommaire + contenu */
.layout { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 36px; padding: 24px 18px 60px; }
.toc { position: sticky; top: 70px; align-self: start; max-height: calc(100vh - 90px); overflow: auto; font-size: .92rem; }
.toc h2 { font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 8px; }
.toc ol { margin: 0; padding-left: 18px; }
.toc ol ol { padding-left: 16px; }
.toc li { margin: 3px 0; }
.toc a { color: var(--text); text-decoration: none; }
.toc a:hover { color: var(--accent); }

.content { max-width: 780px; }
h1 { font-size: 2.1rem; line-height: 1.2; margin: 0 0 10px; color: var(--accent); }
h2 { font-size: 1.45rem; margin: 46px 0 12px; color: var(--accent); border-bottom: 1px solid var(--border); padding-bottom: 6px; }
h3 { font-size: 1.15rem; margin: 26px 0 8px; color: var(--accent-2); }
.lead { font-size: 1.1rem; color: #d6d6d6; }
.tag { font-size: .72rem; font-weight: 500; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 1px 8px; vertical-align: middle; margin-left: 6px; }
.small, .caption { color: var(--muted); font-size: .88rem; }
.caption { margin-top: 6px; }

/* Schémas des règles */
.rules { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin: 16px 0; }
.rule { margin: 0; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 12px; }
.rule figcaption { font-size: .88rem; margin-top: 10px; }
.mini-grid { display: flex; align-items: center; gap: 8px; justify-content: center; }
.g3 { display: grid; grid-template-columns: repeat(3, 22px); gap: 2px; }
.g3 .c, .g1 { width: 22px; height: 22px; background: #111; border: 1px solid #333; border-radius: 3px; }
.g3 .c.on, .g1.on { background: var(--accent); border-color: var(--accent); }
.g3 .c.center { outline: 2px solid var(--accent-2); outline-offset: -1px; }
.g1 { outline: 2px solid var(--accent-2); outline-offset: -1px; flex-shrink: 0; }
.g3 { flex-shrink: 0; }
.arrow { font-size: .78rem; color: var(--muted); white-space: nowrap; }

/* Démos animées */
.demo { position: relative; background: #000; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; margin: 14px 0 4px; }
.demo canvas { display: block; width: 100%; }
.demo .gen { position: absolute; right: 8px; bottom: 6px; font-size: .75rem; color: var(--muted); background: #000a; padding: 1px 6px; border-radius: 4px; }
.demo-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.demo-row .demo { margin: 14px 0 4px; }
.family { border-left: 3px solid #2d3d2d; padding-left: 16px; margin: 22px 0; }

/* Glossaire */
.glossary { display: grid; grid-template-columns: 210px 1fr; gap: 8px 18px; }
.glossary dt { font-weight: 700; color: var(--accent-2); }
.glossary dd { margin: 0; }

/* Étapes et tableau */
.steps li { margin: 6px 0; }
.keys-table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: .92rem; }
.keys-table caption { text-align: left; font-weight: 700; color: var(--accent-2); padding-bottom: 6px; }
.keys-table th, .keys-table td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--border); }
.keys-table th { color: var(--muted); font-weight: 600; }
.keys-table tbody tr:hover { background: #222; }
.links li { margin: 6px 0; }

/* Responsive */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; gap: 10px; }
  .toc { position: static; max-height: none; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
  h1 { font-size: 1.7rem; }
}
@media (max-width: 600px) {
  .glossary { grid-template-columns: 1fr; gap: 2px; }
  .glossary dd { margin-bottom: 10px; }
  .demo-row { grid-template-columns: 1fr; }
  .keys-table { font-size: .85rem; }
  .keys-table th, .keys-table td { padding: 6px; }
}