/* ------------------------------------------------------------------
   Maitrise de l'IA generative - feuille de style du site statique
   Aucune dependance, aucune police distante : fonctionne hors ligne.
------------------------------------------------------------------- */

:root {
  --bg: #fbfaf8;
  --bg-elev: #ffffff;
  --bg-soft: #f3f1ed;
  --text: #1f2328;
  --text-soft: #5b6470;
  --text-faint: #8a939f;
  --line: #e3e0da;
  --line-soft: #eeebe5;
  --accent: #b4540a;
  --accent-soft: #fbeee2;
  --accent-2: #2f6f6b;
  --code-bg: #f6f4f0;
  --code-text: #22262b;
  --shadow: 0 1px 2px rgba(20, 20, 20, .06), 0 8px 24px rgba(20, 20, 20, .06);
  --radius: 10px;
  --sidebar: 290px;
  --toc: 220px;
  --mono: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

:root[data-theme="dark"],
:root[data-theme="auto"] {
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] {
    color-scheme: dark;
    --bg: #14171a;
    --bg-elev: #1b1f23;
    --bg-soft: #21262b;
    --text: #e6e9ec;
    --text-soft: #a8b1bb;
    --text-faint: #7b848e;
    --line: #2b3137;
    --line-soft: #23282d;
    --accent: #f0955a;
    --accent-soft: #35261b;
    --accent-2: #6fc2ba;
    --code-bg: #1d2226;
    --code-text: #dfe4e8;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #14171a;
  --bg-elev: #1b1f23;
  --bg-soft: #21262b;
  --text: #e6e9ec;
  --text-soft: #a8b1bb;
  --text-faint: #7b848e;
  --line: #2b3137;
  --line-soft: #23282d;
  --accent: #f0955a;
  --accent-soft: #35261b;
  --accent-2: #6fc2ba;
  --code-bg: #1d2226;
  --code-text: #dfe4e8;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 76px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--accent); color: #fff; padding: 10px 16px;
}
.skip:focus { left: 8px; top: 8px; }

/* ---------------------------------------------------------- topbar */

.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 14px;
  height: 60px; padding: 0 18px;
  background: color-mix(in srgb, var(--bg-elev) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 650; }
.brand:hover { text-decoration: none; }
.brand-mark {
  display: grid; place-items: center;
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--accent); color: #fff;
  font-size: 13px; font-weight: 700; letter-spacing: .5px;
}
.brand-text { font-size: 15px; white-space: nowrap; }

.burger, .theme {
  background: transparent; border: 1px solid transparent; color: var(--text-soft);
  font-size: 18px; line-height: 1; padding: 7px 9px; border-radius: 8px; cursor: pointer;
}
.burger:hover, .theme:hover { background: var(--bg-soft); color: var(--text); }
.burger { display: none; }

.searchbox { position: relative; margin-left: auto; width: min(420px, 42vw); }
#q {
  width: 100%; padding: 8px 12px;
  background: var(--bg-soft); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px;
  font-family: inherit; font-size: 14px;
}
#q:focus { outline: 2px solid var(--accent); outline-offset: 1px; background: var(--bg-elev); }

.results {
  position: absolute; top: calc(100% + 8px); right: 0;
  width: min(620px, 88vw); max-height: 70vh; overflow-y: auto;
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 6px;
}
.results a { display: block; padding: 10px 12px; border-radius: 8px; color: var(--text); }
.results a:hover, .results a.sel { background: var(--bg-soft); text-decoration: none; }
.results .r-t { font-weight: 600; font-size: 14.5px; }
.results .r-s { font-size: 12px; color: var(--accent); text-transform: uppercase; letter-spacing: .4px; }
.results .r-x { font-size: 13px; color: var(--text-soft); margin-top: 2px; }
.results mark { background: var(--accent-soft); color: inherit; border-radius: 3px; padding: 0 2px; }
.results .empty { padding: 14px; color: var(--text-soft); font-size: 14px; }

/* --------------------------------------------------------- layout */

.layout {
  display: grid;
  grid-template-columns: var(--sidebar) minmax(0, 1fr) var(--toc);
  gap: 0;
  max-width: 1500px; margin: 0 auto;
}

.sidebar {
  position: sticky; top: 60px; align-self: start;
  height: calc(100vh - 60px); overflow-y: auto;
  padding: 22px 14px 60px 22px;
  border-right: 1px solid var(--line-soft);
}
.sidebar::-webkit-scrollbar, .results::-webkit-scrollbar { width: 9px; }
.sidebar::-webkit-scrollbar-thumb, .results::-webkit-scrollbar-thumb {
  background: var(--line); border-radius: 9px;
}

.nav-top { display: flex; flex-direction: column; margin-bottom: 14px; }
.nav-top a {
  padding: 6px 10px; border-radius: 7px;
  color: var(--text); font-size: 14.5px; font-weight: 550;
}
.nav-top a:hover { background: var(--bg-soft); text-decoration: none; }

.nav-section { border-top: 1px solid var(--line-soft); }
.nav-section summary {
  display: flex; align-items: center; gap: 9px;
  padding: 9px 10px; cursor: pointer; list-style: none;
  font-size: 14px; font-weight: 600; color: var(--text);
  border-radius: 7px;
}
.nav-section summary::-webkit-details-marker { display: none; }
.nav-section summary:hover { background: var(--bg-soft); }
.nav-section .num {
  display: grid; place-items: center; flex: none;
  width: 22px; height: 22px; border-radius: 6px;
  background: var(--bg-soft); color: var(--text-faint);
  font-size: 11px; font-weight: 700; font-family: var(--mono);
}
.nav-section[open] > summary { color: var(--accent); }
.nav-section[open] > summary .num { background: var(--accent-soft); color: var(--accent); }
.nav-links { display: flex; flex-direction: column; padding: 0 0 8px 20px; }
.nav-links a {
  padding: 5px 10px; border-left: 2px solid var(--line-soft);
  color: var(--text-soft); font-size: 13.6px;
}
.nav-links a:hover { color: var(--text); border-left-color: var(--text-faint); text-decoration: none; }
.nav-links a.current, .nav-top a.current {
  color: var(--accent); font-weight: 650;
  border-left-color: var(--accent); background: var(--accent-soft);
}

main { padding: 30px 46px 90px; min-width: 0; }

.crumbs { font-size: 13px; color: var(--text-soft); margin-bottom: 18px; }
.crumbs a { color: var(--text-soft); }
.crumbs a:hover { color: var(--accent); }
.crumbs .sep { margin: 0 7px; color: var(--text-faint); }

.toc {
  position: sticky; top: 60px; align-self: start;
  height: calc(100vh - 60px); overflow-y: auto;
  padding: 34px 20px 60px 6px;
}
.toc-title {
  margin: 0 0 8px; font-size: 11.5px; letter-spacing: .8px;
  text-transform: uppercase; color: var(--text-faint); font-weight: 700;
}
.toc a {
  display: block; padding: 3px 0 3px 12px;
  border-left: 2px solid var(--line-soft);
  color: var(--text-soft); font-size: 13px; line-height: 1.45;
}
.toc a:hover { color: var(--accent); text-decoration: none; }
.toc a.lvl3 { padding-left: 24px; font-size: 12.5px; }
.toc a.active { color: var(--accent); border-left-color: var(--accent); font-weight: 600; }

/* ---------------------------------------------------------- prose */

.prose { max-width: 820px; }
.prose > *:first-child { margin-top: 0; }

.prose h1 {
  font-size: 2.05rem; line-height: 1.22; letter-spacing: -.02em;
  margin: 0 0 14px; font-weight: 700;
}
.prose h2 {
  font-size: 1.42rem; margin: 46px 0 14px; padding-top: 16px;
  border-top: 1px solid var(--line-soft); font-weight: 680; letter-spacing: -.01em;
}
.prose h3 { font-size: 1.12rem; margin: 30px 0 10px; font-weight: 660; }
.prose h4 { font-size: 1rem; margin: 22px 0 8px; color: var(--text-soft); text-transform: uppercase; letter-spacing: .5px; font-size: .82rem; }

.anchor {
  margin-left: 8px; color: var(--text-faint); opacity: 0;
  font-weight: 400; text-decoration: none;
}
h2:hover .anchor, h3:hover .anchor { opacity: 1; }

.prose p { margin: 14px 0; }
.prose ul, .prose ol { margin: 14px 0; padding-left: 24px; }
.prose li { margin: 6px 0; }
.prose li > ul, .prose li > ol { margin: 6px 0; }

.prose blockquote {
  margin: 20px 0; padding: 2px 18px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 8px 8px 0;
  color: var(--text);
}
.prose blockquote p { margin: 12px 0; }

.prose hr { border: 0; border-top: 1px solid var(--line); margin: 34px 0; }

.prose code {
  font-family: var(--mono); font-size: .88em;
  background: var(--code-bg); color: var(--accent-2);
  padding: 2px 5px; border-radius: 5px;
  border: 1px solid var(--line-soft);
}

.codeblock { position: relative; margin: 18px 0; }
.codeblock::before {
  content: attr(data-lang);
  position: absolute; top: 0; left: 0;
  padding: 3px 10px; border-radius: var(--radius) 0 8px 0;
  background: var(--bg-soft); color: var(--text-faint);
  font-family: var(--mono); font-size: 11px; letter-spacing: .5px;
  text-transform: uppercase; pointer-events: none;
}
.codeblock pre {
  margin: 0; padding: 34px 16px 16px;
  background: var(--code-bg); color: var(--code-text);
  border: 1px solid var(--line); border-radius: var(--radius);
  overflow-x: auto;
}
.codeblock pre code {
  background: none; border: 0; padding: 0; color: inherit;
  font-size: 13.4px; line-height: 1.6;
}
.copy {
  position: absolute; top: 6px; right: 8px; z-index: 2;
  padding: 4px 10px; border-radius: 6px;
  background: var(--bg-elev); color: var(--text-soft);
  border: 1px solid var(--line);
  font-family: inherit; font-size: 11.5px; cursor: pointer; opacity: 0;
  transition: opacity .15s;
}
.codeblock:hover .copy, .copy:focus { opacity: 1; }
.copy:hover { color: var(--accent); border-color: var(--accent); }
.copy.done { color: var(--accent-2); border-color: var(--accent-2); }

.tablewrap { overflow-x: auto; margin: 20px 0; }
.prose table {
  border-collapse: collapse; width: 100%; font-size: 14.2px;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.prose th {
  background: var(--bg-soft); font-weight: 650; text-align: left;
  padding: 10px 13px; border-bottom: 1px solid var(--line);
}
.prose td { padding: 9px 13px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.prose tbody tr:last-child td { border-bottom: 0; }
.prose tbody tr:hover { background: var(--bg-soft); }

.prose a.ext::after {
  content: "\2197"; font-size: .78em; margin-left: 2px;
  color: var(--text-faint); vertical-align: super;
}

/* ---------------------------------------------------------- pager */

.pager { display: flex; gap: 14px; margin: 56px 0 0; max-width: 820px; }
.pager a {
  flex: 1; padding: 14px 16px; border: 1px solid var(--line);
  border-radius: var(--radius); background: var(--bg-elev);
  color: var(--text); font-weight: 600; font-size: 14.5px; line-height: 1.35;
}
.pager a:hover { border-color: var(--accent); text-decoration: none; }
.pager a span {
  display: block; font-size: 11.5px; font-weight: 600; letter-spacing: .6px;
  text-transform: uppercase; color: var(--text-faint); margin-bottom: 4px;
}
.pager .next { text-align: right; }

.foot {
  margin-top: 46px; padding-top: 18px; border-top: 1px solid var(--line-soft);
  color: var(--text-faint); font-size: 12.5px; max-width: 820px;
}

.overlay {
  display: none; position: fixed; inset: 60px 0 0; z-index: 30;
  background: rgba(0, 0, 0, .35);
}
.overlay.on { display: block; }

/* ------------------------------------------------------ responsive */

@media (max-width: 1180px) {
  .layout { grid-template-columns: var(--sidebar) minmax(0, 1fr); }
  .toc { display: none; }
  main { padding: 28px 34px 80px; }
}

@media (max-width: 860px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .burger { display: block; }
  .brand-text { display: none; }
  .searchbox { width: 100%; }
  .sidebar {
    position: fixed; top: 60px; left: 0; z-index: 35;
    width: 84vw; max-width: 330px; height: calc(100vh - 60px);
    background: var(--bg-elev); border-right: 1px solid var(--line);
    transform: translateX(-102%); transition: transform .22s ease;
  }
  .sidebar.on { transform: none; box-shadow: var(--shadow); }
  main { padding: 22px 18px 70px; }
  .prose h1 { font-size: 1.7rem; }
  .pager { flex-direction: column; }
}

/* ------------------------------------------------- plan du corpus */

.plan-link {
  padding: 6px 12px; border-radius: 7px;
  color: var(--text-soft); font-size: 13.5px; font-weight: 600;
  border: 1px solid var(--line); white-space: nowrap;
}
.plan-link:hover { color: var(--accent); border-color: var(--accent); text-decoration: none; }

/* La page plan n'a pas de sommaire lateral : on lui rend la largeur. */
.layout:has(.toc:empty) { grid-template-columns: var(--sidebar) minmax(0, 1fr); }
.prose:has(.plan-grid) { max-width: 1100px; }

.prose .lead { font-size: 1.06rem; color: var(--text-soft); margin: 0 0 22px; }

.plan-stats { display: flex; gap: 12px; margin: 0 0 24px; flex-wrap: wrap; }
.plan-stats div {
  flex: 1; min-width: 110px; padding: 14px 16px;
  background: var(--bg-soft); border: 1px solid var(--line-soft); border-radius: var(--radius);
}
.plan-stats strong { display: block; font-size: 1.5rem; line-height: 1.1; color: var(--accent); }
.plan-stats span { font-size: 12px; color: var(--text-faint); text-transform: uppercase; letter-spacing: .6px; }

.plan-filter { display: flex; align-items: center; gap: 12px; margin: 0 0 26px; }
.plan-filter input {
  flex: 1; padding: 11px 15px; font-size: 15px; font-family: inherit;
  background: var(--bg-elev); color: var(--text);
  border: 1px solid var(--line); border-radius: var(--radius);
}
.plan-filter input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
#plan-count { font-size: 13px; color: var(--text-faint); white-space: nowrap; }

.plan-grid {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  align-items: start;
}
.plan-card {
  padding: 18px 20px 14px;
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: var(--radius);
}
.plan-card[hidden] { display: none; }
.plan-card h2 {
  display: flex; align-items: center; gap: 10px;
  margin: 0 0 6px; padding: 0; border: 0;
  font-size: 1.05rem; font-weight: 680;
}
.plan-num {
  display: grid; place-items: center; flex: none;
  width: 26px; height: 26px; border-radius: 7px;
  background: var(--accent-soft); color: var(--accent);
  font-family: var(--mono); font-size: 12px; font-weight: 700;
}
.plan-sub { margin: 0 0 12px; font-size: 13.2px; color: var(--text-soft); line-height: 1.5; }
.plan-card ul { list-style: none; margin: 0; padding: 0; }
.plan-card li { margin: 0; padding: 7px 0; border-top: 1px solid var(--line-soft); }
.plan-card li[hidden] { display: none; }
.plan-card li a { font-size: 14px; font-weight: 550; }
.plan-desc {
  display: block; margin-top: 2px;
  font-size: 12.4px; color: var(--text-faint); line-height: 1.45;
}
.plan-meta {
  margin: 12px 0 0; padding-top: 10px; border-top: 1px solid var(--line-soft);
  font-size: 11.5px; color: var(--text-faint); text-transform: uppercase; letter-spacing: .5px;
}

@media (max-width: 860px) {
  .plan-link { display: none; }
  .plan-grid { grid-template-columns: 1fr; }
}

@media print {
  .topbar, .sidebar, .toc, .pager, .copy, .overlay, .crumbs { display: none !important; }
  .layout { display: block; }
  main { padding: 0; }
  .prose { max-width: none; }
  .codeblock pre { white-space: pre-wrap; }
  a { color: inherit; }
  .prose a.ext::after { content: " (" attr(href) ")"; font-size: .7em; }
}