/* ==========================================================================
   SDD Mode — Site officiel — Design System
   Framework AIAD — aiad.ovh — Open Source
   Conçu pour RGAA 4.1 (contrastes AA, focus visibles) et RGESN
   (zéro framework, zéro webfont, zéro image bitmap).
   ========================================================================== */

:root {
  /* Palette */
  --navy-900: #0a1f3d;
  --navy-800: #10294f;
  --navy-700: #173a6b;
  --navy-600: #1e4a87;
  --blue-500: #2d6cdf;
  --blue-100: #e3edfb;
  --gold-500: #e8a020;
  --gold-600: #7e5300; /* @spec SPEC-025-1-gold-contrast-fix — ratio 6.0:1 (blanc) 5.3:1 (#fbeecd) */
  --teal-500: #0e8a7d;
  --red-600: #c0392b;
  --green-600: #1e7e34;
  --ink: #1c2430;
  --ink-soft: #46546a;
  --paper: #ffffff;
  --paper-soft: #f4f7fb;
  --line: #d7dfeb;

  /* Typo */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;

  /* Rythme */
  --radius: 8px;
  --maxw: 72rem;
  --shadow: 0 1px 3px rgba(10, 31, 61, 0.12), 0 8px 24px rgba(10, 31, 61, 0.08);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
}

/* ---------- Liens & focus (RGAA) ---------- */

a { color: var(--blue-500); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--navy-600); }

:focus-visible {
  outline: 3px solid var(--gold-500);
  outline-offset: 2px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--navy-900);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus {
  left: 0;
}

/* ---------- Header / Navigation ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--navy-900);
  color: #fff;
  border-bottom: 3px solid var(--gold-500);
}

.site-header .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 3.75rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  padding: 0.5rem 0;
}
.brand:hover { color: var(--gold-500); }
.brand .logo {
  display: inline-flex;
  width: 2rem;
  height: 2rem;
}
.brand .tag {
  font-weight: 400;
  font-size: 0.78rem;
  color: #b9c8e0;
  display: block;
  line-height: 1.1;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  background: none;
  border: 2px solid #b9c8e0;
  color: #fff;
  border-radius: var(--radius);
  padding: 0.4rem 0.7rem;
  font-size: 1rem;
  cursor: pointer;
}

.site-nav { margin-left: auto; }

.site-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.site-nav a,
.site-nav button.menu-btn {
  display: inline-block;
  color: #e8eef8;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius);
  background: none;
  border: none;
  font-family: inherit;
  cursor: pointer;
}

.site-nav a:hover,
.site-nav button.menu-btn:hover,
.site-nav a[aria-current="page"] {
  background: var(--navy-700);
  color: #fff;
}

.site-nav li.has-menu { position: relative; }

.site-nav button.menu-btn::after {
  content: " ▾";
  font-size: 0.75em;
}

.site-nav .submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 16rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.4rem;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
}

.site-nav li.has-menu.open .submenu { display: flex; }

.site-nav .submenu a {
  color: var(--ink);
  padding: 0.5rem 0.75rem;
  font-weight: 400;
  width: 100%;
}
.site-nav .submenu a:hover { background: var(--blue-100); color: var(--navy-800); }

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  margin-left: 0.5rem;
  border-left: 1px solid var(--navy-600);
  padding-left: 0.75rem;
}
.lang-switch a {
  color: #b9c8e0;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.3rem 0.45rem;
  border-radius: 4px;
}
.lang-switch a[aria-current="true"] {
  background: var(--gold-500);
  color: var(--navy-900);
}
.lang-switch a:hover { color: #fff; }

@media (max-width: 56rem) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none;
    width: 100%;
    margin: 0;
    padding-bottom: 0.75rem;
  }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; align-items: stretch; }
  .site-nav .submenu {
    position: static;
    box-shadow: none;
    border: none;
    background: var(--navy-800);
  }
  .site-nav .submenu a { color: #e8eef8; }
  .site-nav .submenu a:hover { background: var(--navy-700); color: #fff; }
  .lang-switch { border: none; padding-left: 0.75rem; }
}

/* ---------- Hero (landing) ---------- */

.hero {
  background: linear-gradient(160deg, var(--navy-900) 0%, var(--navy-700) 70%, var(--navy-600) 100%);
  color: #fff;
  padding: 4.5rem 1.25rem 4rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.15;
  margin: 0 auto 1rem;
  max-width: 56rem;
}
.hero h1 .accent { color: var(--gold-500); }

.hero p.lede {
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: #d7e1f2;
  max-width: 46rem;
  margin: 0 auto 2rem;
}

.hero .version-pill {
  display: inline-block;
  background: rgba(232, 160, 32, 0.18);
  border: 1px solid var(--gold-500);
  color: var(--gold-500);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.25rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
}

.btn-row { display: flex; gap: 0.9rem; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  font-size: 1.02rem;
  border: 2px solid transparent;
}
.btn-primary { background: var(--gold-500); color: var(--navy-900); }
.btn-primary:hover { background: #f2b13d; color: var(--navy-900); }
.btn-ghost { border-color: #b9c8e0; color: #fff; }
.btn-ghost:hover { background: var(--navy-600); color: #fff; }

.hero .install {
  margin: 2.2rem auto 0;
  display: inline-block;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--navy-600);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 1rem;
  padding: 0.7rem 1.4rem;
  color: #9fe3b5;
}

/* ---------- Sections génériques ---------- */

main { display: block; }

.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 3.5rem 1.25rem;
}

.section.alt {
  max-width: none;
  background: var(--paper-soft);
}
.section.alt > .inner {
  max-width: var(--maxw);
  margin: 0 auto;
}

.section h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: var(--navy-900);
  margin: 0 0 0.5rem;
}
.section .section-lede {
  color: var(--ink-soft);
  max-width: 50rem;
  margin-top: 0;
}

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--gold-600);
  margin: 0 0 0.4rem;
}

/* Grilles de cartes */

.cards {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  margin-top: 2rem;
  padding: 0;
  list-style: none;
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: 0 1px 2px rgba(10, 31, 61, 0.06);
  display: flex;
  flex-direction: column;
}

.card h3 { margin: 0 0 0.5rem; font-size: 1.12rem; color: var(--navy-800); }
.card p { margin: 0 0 0.75rem; color: var(--ink-soft); font-size: 0.97rem; flex: 1; }
.card .card-link { font-weight: 600; font-size: 0.95rem; text-decoration: none; }
.card .card-link:hover { text-decoration: underline; }
.card .icon {
  width: 2.4rem;
  height: 2.4rem;
  margin-bottom: 0.8rem;
  color: var(--blue-500);
}

.card.accent-top { border-top: 4px solid var(--gold-500); }

/* Bandeau chiffres */

.stats {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  margin-top: 2rem;
}
.stat {
  text-align: center;
  padding: 1.4rem 1rem;
  background: var(--navy-800);
  color: #fff;
  border-radius: var(--radius);
}
.stat .num { font-size: 2rem; font-weight: 800; color: var(--gold-500); display: block; }
.stat .label { font-size: 0.9rem; color: #c9d6ea; }

/* ---------- Pages article ---------- */

.page-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
  display: grid;
  grid-template-columns: 17rem minmax(0, 1fr);
  gap: 2.5rem;
}

@media (max-width: 56rem) {
  .page-grid { grid-template-columns: 1fr; }
}

.sidebar {
  font-size: 0.93rem;
}
.sidebar nav {
  position: sticky;
  top: 5rem;
  border-right: 1px solid var(--line);
  padding-right: 1.25rem;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
}
@media (max-width: 56rem) {
  .sidebar nav { position: static; border-right: none; border-bottom: 1px solid var(--line); padding: 0 0 1rem; }
}

.sidebar h2 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  margin: 1.4rem 0 0.5rem;
}
.sidebar h2:first-child { margin-top: 0; }
.sidebar ul { list-style: none; margin: 0; padding: 0; }
.sidebar li { margin: 0; }
.sidebar a {
  display: block;
  padding: 0.32rem 0.5rem;
  color: var(--ink-soft);
  text-decoration: none;
  border-radius: 4px;
  border-left: 3px solid transparent;
}
.sidebar a:hover { background: var(--blue-100); color: var(--navy-800); }
.sidebar a[aria-current="page"] {
  border-left-color: var(--gold-500);
  background: var(--paper-soft);
  color: var(--navy-900);
  font-weight: 600;
}

.breadcrumb {
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin: 0 0 1.2rem;
}
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0; padding: 0; }
.breadcrumb li + li::before { content: "›"; margin-right: 0.35rem; color: var(--line); }
.breadcrumb a { color: var(--ink-soft); }

article.doc { max-width: 46rem; }

article.doc h1 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  color: var(--navy-900);
  line-height: 1.2;
  margin: 0 0 0.6rem;
}

article.doc .doc-lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  margin: 0 0 2rem;
}

article.doc h2 {
  font-size: 1.45rem;
  color: var(--navy-800);
  margin: 2.4rem 0 0.8rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
article.doc h3 { font-size: 1.15rem; color: var(--navy-800); margin: 1.8rem 0 0.6rem; }

article.doc table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.93rem;
  margin: 1.2rem 0;
}
article.doc th, article.doc td {
  border: 1px solid var(--line);
  padding: 0.55rem 0.7rem;
  text-align: left;
  vertical-align: top;
}
article.doc th { background: var(--paper-soft); color: var(--navy-900); }
article.doc tbody tr:nth-child(even) { background: #fafcfe; }

article.doc code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.08em 0.35em;
}

article.doc pre {
  background: var(--navy-900);
  color: #dbe7f8;
  border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.55;
}
article.doc pre code { background: none; border: none; padding: 0; color: inherit; }

article.doc blockquote {
  margin: 1.4rem 0;
  padding: 0.9rem 1.2rem;
  border-left: 4px solid var(--gold-500);
  background: var(--paper-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ink-soft);
}
article.doc blockquote p { margin: 0.3rem 0; }

/* Encadrés sémantiques */

.callout {
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 1.4rem 0;
  border: 1px solid;
}
.callout > :first-child { margin-top: 0; }
.callout > :last-child { margin-bottom: 0; }
.callout .callout-title { font-weight: 700; display: block; margin-bottom: 0.3rem; }
.callout.info { background: var(--blue-100); border-color: #b3cdf3; color: var(--navy-800); }
.callout.warn { background: #fdf3e0; border-color: #ecc97f; color: #6b4d09; }
.callout.danger { background: #fcebe8; border-color: #eebbb3; color: #7c2d22; }
.callout.success { background: #e9f6ec; border-color: #b4dfc0; color: #1d5c2e; }
/* WCAG 1.4.3 — liens dans callouts : héritent du texte callout (déjà ≥4.5:1)
   plutôt que --blue-500 qui ne passe pas sur ces fonds colorés. */
.callout a { color: inherit; text-decoration: underline; }

/* Badge / pills */

.pill {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.12rem 0.65rem;
  border-radius: 999px;
  background: var(--blue-100);
  color: var(--navy-800);
  vertical-align: middle;
}
.pill.gold { background: #fbeecd; color: var(--gold-600); }
.pill.red { background: #fcebe8; color: var(--red-600); }
.pill.green { background: #e9f6ec; color: var(--green-600); }

/* Pagination prev/next */

.doc-pagination {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.95rem;
}
.doc-pagination a {
  text-decoration: none;
  font-weight: 600;
  max-width: 48%;
}
.doc-pagination .dir { display: block; font-size: 0.8rem; color: var(--ink-soft); font-weight: 400; }
.doc-pagination .next { margin-left: auto; text-align: right; }

/* ---------- Big Picture ---------- */

.bigpicture-wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.bigpicture-svg {
  width: 100%;
  height: auto;
  display: block;
  margin: 1.5rem 0;
}

.bp-node { cursor: pointer; }
.bp-node rect, .bp-node circle, .bp-node path.shape {
  transition: filter 0.15s ease, transform 0.15s ease;
}
.bp-node:hover rect, .bp-node:focus rect,
.bp-node:hover circle, .bp-node:focus circle {
  filter: brightness(1.18);
}
.bp-node:focus { outline: none; }
.bp-node:focus > rect, .bp-node:focus > circle {
  stroke: var(--gold-500);
  stroke-width: 3;
}

.bp-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin-top: 0.5rem;
}
.bp-legend .swatch {
  display: inline-block;
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 3px;
  margin-right: 0.4rem;
  vertical-align: -0.1em;
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--navy-900);
  color: #b9c8e0;
  margin-top: 3rem;
  border-top: 3px solid var(--gold-500);
  font-size: 0.92rem;
}
.site-footer .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 1.5rem;
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
}
.site-footer h2 {
  color: #fff;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 0.7rem;
}
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 0.3rem 0; }
.site-footer a { color: #b9c8e0; text-decoration: none; }
.site-footer a:hover { color: var(--gold-500); text-decoration: underline; }
.site-footer .legal {
  border-top: 1px solid var(--navy-700);
  text-align: center;
  padding: 1.2rem;
  font-size: 0.85rem;
  color: #8fa3c2;
}

/* ---------- Recherche ---------- */

.search-box {
  display: flex;
  gap: 0.6rem;
  margin: 1.2rem 0 0.6rem;
}
.search-box input[type="search"] {
  flex: 1;
  font: inherit;
  padding: 0.65rem 0.9rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
}
.search-box input[type="search"]:focus { border-color: var(--blue-500); outline: none; }

#search-status { color: var(--ink-soft); font-size: 0.92rem; min-height: 1.4em; }

#search-results { list-style: none; margin: 1rem 0 0; padding: 0; }
.search-hit {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  margin-bottom: 0.8rem;
  background: #fff;
}
.search-hit > a { font-weight: 700; font-size: 1.05rem; text-decoration: none; }
.search-hit > a:hover { text-decoration: underline; }
.search-hit p { margin: 0.3rem 0 0.2rem; color: var(--ink-soft); font-size: 0.93rem; }
.search-hit ul { list-style: none; margin: 0.3rem 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem 1rem; }
.search-hit ul a { font-size: 0.85rem; }

/* ---------- Utilitaires ---------- */

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

.center { text-align: center; }
.mt-0 { margin-top: 0; }