/* Académie Lumina : feuille de style des pages statiques (accueil sans JavaScript,
   /programme/…, 404). Partagée, légère, sans police ni ressource externe.
   Tout est préfixé .seo pour ne jamais toucher à l'application Svelte. */

.seo-body { margin: 0; background: #f6f4ff; }

.seo {
  --bg: #f6f4ff;
  --surface: #ffffff;
  --line: #d9d3f2;
  --text: #1e1b3a;
  --text-2: #4d4784;
  --link: #3f33c4;
  --night: #12102a;
  --gold: #ffc857;
  --pink: #ff5ca8;
  --pink-ink: #2a0718;
  box-sizing: border-box;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 1.0625rem/1.65 system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  overflow-wrap: break-word;
}
.seo *, .seo *::before, .seo *::after { box-sizing: inherit; }

.seo .skip { position: absolute; left: -999px; top: 0; background: var(--gold); color: var(--night); padding: 0.5rem 1rem; z-index: 10; }
.seo .skip:focus { left: 0; }

.seo a { color: var(--link); text-underline-offset: 0.15em; }
.seo a:hover { text-decoration-thickness: 2px; }
.seo a:focus-visible, .seo summary:focus-visible { outline: 3px solid var(--pink); outline-offset: 2px; border-radius: 4px; }

.seo .s-head {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem 1.5rem;
  background: var(--night); color: #f4f1ff; padding: 0.75rem max(1rem, calc((100% - 62rem) / 2));
}
.seo .s-head a { color: #f4f1ff; text-decoration: none; }
.seo .s-head a:hover { text-decoration: underline; }
.seo .s-brand { font-weight: 700; font-size: 1.2rem; color: var(--gold) !important; }
.seo .s-brand span { color: #f4f1ff; font-weight: 400; font-size: 0.95rem; }
.seo .s-head nav { display: flex; gap: 1.25rem; }

.seo main { max-width: 62rem; margin: 0 auto; padding: 1.5rem 1rem 2.5rem; }

.seo h1 { font-size: clamp(1.6rem, 4.5vw, 2.4rem); line-height: 1.2; margin: 0.5rem 0 1rem; color: var(--night); }
.seo h2 { font-size: clamp(1.25rem, 3vw, 1.6rem); line-height: 1.3; margin: 2.25rem 0 0.75rem; color: var(--night); }
.seo h3 { font-size: 1.1rem; margin: 1.5rem 0 0.4rem; color: var(--text); }
.seo p, .seo ul, .seo ol, .seo dl { margin: 0 0 1rem; }
.seo ul, .seo ol { padding-left: 1.4rem; }
.seo li { margin: 0.25rem 0; }
.seo .lead { font-size: 1.2rem; color: var(--text); max-width: 46rem; }
.seo .muted { color: var(--text-2); font-size: 0.95rem; }

.seo .crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.25rem; padding: 0; margin: 0 0 0.5rem; font-size: 0.95rem; color: var(--text-2); }
.seo .crumbs li { margin: 0; }
.seo .crumbs li + li::before { content: '›'; margin-right: 0.25rem; color: var(--text-2); }

.seo .tags { display: flex; flex-wrap: wrap; gap: 0.5rem; padding: 0; }
.seo .tags span { background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 0.1rem 0.75rem; font-size: 0.9rem; color: var(--text-2); }

.seo .btn {
  display: inline-block; background: var(--pink); color: var(--pink-ink); font-weight: 700; text-decoration: none;
  padding: 0.8rem 1.5rem; border-radius: 999px; min-height: 48px; box-shadow: 0 6px 18px rgba(255, 92, 168, 0.35);
}
.seo .btn:hover { filter: brightness(1.05); text-decoration: none; }
.seo .cta { margin: 1.5rem 0; }

.seo .hero { padding: 1rem 0 0.5rem; }

.seo .cards, .seo .blocks, .seo .plain { list-style: none; padding: 0; display: grid; gap: 0.75rem; grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr)); }
.seo .cards a { display: flex; flex-direction: column; gap: 0.15rem; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 1rem 1.25rem; text-decoration: none; color: var(--text); }
.seo .cards a:hover { border-color: var(--link); }
.seo .cards strong { font-size: 1.5rem; color: var(--link); }
.seo .cards span { color: var(--text-2); font-size: 0.95rem; }
.seo .blocks li, .seo .plain li { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 0.75rem 1.25rem; margin: 0; }
.seo .blocks h2, .seo .blocks h3 { margin: 0.25rem 0; font-size: 1.15rem; }
.seo .plain span { display: block; color: var(--text-2); font-size: 0.95rem; }

.seo ul.notions { list-style: none; padding: 0; }
.seo ul.notions li { padding: 0.35rem 0; border-bottom: 1px solid var(--line); margin: 0; }

.seo section > p, .seo section > ul, .seo section > ol, .seo section > dl { max-width: 46rem; }

.seo blockquote { margin: 0 0 1rem; padding: 0.75rem 1.25rem; background: var(--surface); border-left: 5px solid var(--pink); border-radius: 0 12px 12px 0; max-width: 46rem; }
.seo blockquote p { margin: 0 0 0.5rem; }
.seo .choices { margin-bottom: 0; }

.seo details { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 0.5rem 1rem; margin: 0 0 1rem; max-width: 46rem; }
.seo summary { cursor: pointer; font-weight: 700; color: var(--link); padding: 0.25rem 0; }

.seo dt { font-weight: 700; margin-top: 0.5rem; }
.seo dd { margin: 0 0 0.25rem 1rem; }

.seo .s-foot { background: var(--night); color: #d9d3f2; padding: 1.5rem max(1rem, calc((100% - 62rem) / 2)); font-size: 0.95rem; }
.seo .s-foot p { margin: 0 0 0.5rem; }
.seo .s-foot a { color: var(--gold); }

@media (prefers-reduced-motion: reduce) { .seo * { transition: none !important; animation: none !important; } }
@media print { .seo .s-head nav, .seo .btn, .seo .skip { display: none; } .seo .s-head, .seo .s-foot { background: none; color: #000; } }