/* ==========================================================================
   Collège Jean Mermoz (Savigny-sur-Orge)
   Design system : sobre, institutionnel, accessible, zéro dépendance externe.
   ========================================================================== */

:root {
  --navy-900: #0b2f4f;
  --navy-800: #123b61;
  --blue-600: #1b6fb0;
  --blue-100: #e6f0f8;
  --green-600: #2e7d57;
  --orange-600: #c96a1c;
  --grey-50: #f6f8fa;
  --grey-100: #eef1f4;
  --grey-300: #d7dee4;
  --grey-600: #5b6472;
  --ink: #16202b;
  --white: #ffffff;
  --radius: 10px;
  --shadow: 0 2px 10px rgba(11, 47, 79, 0.08);
  --shadow-hover: 0 6px 20px rgba(11, 47, 79, 0.14);
  --max-w: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--blue-600); text-decoration: none; }
a:hover, a:focus { text-decoration: underline; }

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

/* Skip link (accessibilité clavier) */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy-900);
  color: var(--white);
  padding: 10px 16px;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Bandeau "" ---------- */
.disclaimer-bar {
  background: #fff4e5;
  color: #6b4210;
  border-bottom: 1px solid #f0d9ad;
  font-size: 0.85rem;
}
.disclaimer-bar .container {
  padding-top: 8px;
  padding-bottom: 8px;
  display: flex;
  gap: 8px;
  align-items: flex-start;
}
.disclaimer-bar strong { white-space: nowrap; }

/* ---------- Header ---------- */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--grey-300);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--navy-900);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.2;
}
.brand:hover { text-decoration: none; }
.brand-badge {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--navy-900), var(--blue-600));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 800;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.brand-text small {
  display: block;
  font-weight: 500;
  font-size: 0.72rem;
  color: var(--grey-600);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0;
}
.main-nav a {
  display: block;
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.95rem;
}
.main-nav a:hover, .main-nav a:focus, .main-nav a[aria-current="page"] {
  background: var(--blue-100);
  color: var(--navy-900);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--grey-300);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 55%, var(--blue-600) 100%);
  color: var(--white);
  padding: 64px 0 72px;
}
.hero .container { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }
.hero-eyebrow {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.hero h1 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); margin: 0 0 16px; line-height: 1.2; }
.hero p { font-size: 1.05rem; color: #dbe8f5; max-width: 52ch; }
.hero-actions { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--white); color: var(--navy-900); }
.btn-primary:hover { background: var(--blue-100); text-decoration: none; }
.btn-outline { border-color: rgba(255,255,255,0.6); color: var(--white); }
.btn-outline:hover { background: rgba(255,255,255,0.1); text-decoration: none; }

.hero-art {
  aspect-ratio: 4/3;
  border-radius: 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

/* ---------- Sections génériques ---------- */
.section { padding: 56px 0; }
.section-alt { background: var(--grey-50); }
.section-head { max-width: 68ch; margin-bottom: 32px; }
.section-head .eyebrow {
  color: var(--blue-600);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}
.section-head h2 { font-size: clamp(1.4rem, 2.2vw, 1.9rem); color: var(--navy-900); margin: 6px 0 10px; }
.section-head p { color: var(--grey-600); }

/* ---------- Cartes ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.card {
  background: var(--white);
  border: 1px solid var(--grey-300);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.card-media {
  aspect-ratio: 16/10;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
}
.card-body { padding: 18px 20px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-tag {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--navy-900);
  background: var(--blue-100);
  padding: 4px 9px;
  border-radius: 999px;
}
.card h3 { font-size: 1.05rem; margin: 0; line-height: 1.35; }
.card h3 a { color: var(--ink); }
.card h3 a:hover { color: var(--blue-600); }
.card time { font-size: 0.82rem; color: var(--grey-600); }
.card p { color: var(--grey-600); font-size: 0.92rem; margin: 0; }

/* Palette de dégradés pour les vignettes (pas de photos réelles) */
.tint-1 { background: linear-gradient(135deg, var(--navy-900), var(--blue-600)); }
.tint-2 { background: linear-gradient(135deg, var(--green-600), #1f5b3f); }
.tint-3 { background: linear-gradient(135deg, var(--orange-600), #8f4a12); }
.tint-4 { background: linear-gradient(135deg, var(--blue-600), #3ea0e0); }

/* ---------- Bandes de repères / chiffres ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; }
.stat { background: var(--white); border: 1px solid var(--grey-300); border-radius: var(--radius); padding: 20px; text-align: center; }
.stat strong { display: block; font-size: 1.7rem; color: var(--navy-900); }
.stat span { font-size: 0.85rem; color: var(--grey-600); }

/* ---------- Article ---------- */
.article-header { padding: 40px 0 8px; }
.breadcrumb { font-size: 0.85rem; color: var(--grey-600); margin-bottom: 14px; }
.breadcrumb a { color: var(--grey-600); }
.article-header h1 { color: var(--navy-900); font-size: clamp(1.5rem, 2.6vw, 2.1rem); margin: 0 0 12px; }
.article-meta { display: flex; gap: 14px; flex-wrap: wrap; color: var(--grey-600); font-size: 0.88rem; margin-bottom: 24px; }
.article-cover {
  aspect-ratio: 21/9;
  border-radius: var(--radius);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.9);
  font-weight: 700;
}
.article-body { max-width: 74ch; }
.article-body h2 { color: var(--navy-900); margin-top: 32px; }
.article-body p { margin: 0 0 18px; }
.article-body ul { margin: 0 0 18px 20px; }
.callout {
  background: var(--blue-100);
  border-left: 4px solid var(--blue-600);
  padding: 16px 18px;
  border-radius: 8px;
  margin: 24px 0;
  font-size: 0.95rem;
}
.article-body figure {
  margin: 28px 0;
}
.article-body figure img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
}
.article-body figcaption {
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--grey-600);
  text-align: center;
}
.article-body h3 {
  color: var(--navy-900);
  margin: 24px 0 10px;
  font-size: 1.05rem;
}
.resource-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.resource-list li {
  background: var(--grey-50);
  border: 1px solid var(--grey-300);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.92rem;
}
.resource-list strong { color: var(--navy-900); }

/* ---------- Bloc info pratique ---------- */
.info-card {
  background: var(--white);
  border: 1px solid var(--grey-300);
  border-radius: var(--radius);
  padding: 24px;
}
.info-card h3 { margin-top: 0; color: var(--navy-900); }
.info-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.info-list li { display: flex; gap: 10px; font-size: 0.95rem; }
.info-list .ico { flex-shrink: 0; }
.map-wrap { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--grey-300); }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-900); color: #cfe0f0; margin-top: 40px; }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  padding: 48px 0 24px;
}
.footer-grid h4 { color: var(--white); font-size: 0.95rem; margin: 0 0 14px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.footer-grid a { color: #cfe0f0; font-size: 0.92rem; }
.footer-grid a:hover { color: var(--white); }
.footer-note {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding: 18px 0 28px;
  font-size: 0.82rem;
  color: #9fb7cc;
}
.footer-note p { margin: 0 0 8px; }

/* ---------- Utilitaires ---------- */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}
.pagination { display: flex; gap: 8px; margin-top: 32px; }
.pagination a, .pagination span {
  padding: 8px 14px;
  border: 1px solid var(--grey-300);
  border-radius: 8px;
  font-size: 0.9rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-art { order: -1; max-height: 220px; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .main-nav {
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--grey-300);
    box-shadow: var(--shadow);
    display: none;
  }
  .main-nav.is-open { display: block; }
  .main-nav ul { flex-direction: column; padding: 12px 20px; gap: 2px; }
  .main-nav a { padding: 12px 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card { transition: none; }
}