:root {
  --fond: #fbfaf7;
  --texte: #1d2430;
  --discret: #5b6372;
  --accent: #1f3a5f;
  --accent-clair: #e7edf5;
  --bordure: #d9dde5;
  --focus: #2b6cb0;
  --max: 920px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fond: #0f1b2d;
    --texte: #e8edf5;
    --discret: #9aa6b8;
    --accent: #8fb3e0;
    --accent-clair: #17263d;
    --bordure: #2a3a52;
    --focus: #8fb3e0;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--texte);
  background: var(--fond);
}
.conteneur { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }
a { color: var(--accent); }
a:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 2px; }
.lien-evitement {
  position: absolute; left: -9999px; top: 0;
}
.lien-evitement:focus { left: 1rem; top: 1rem; background: var(--fond); padding: .5rem; z-index: 10; }

.entete { border-bottom: 1px solid var(--bordure); padding: 1rem 0; }
.entete-ligne { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .75rem 1.5rem; }
.marque { font-weight: 700; font-size: 1.25rem; color: var(--texte); text-decoration: none; }
.menu { display: flex; flex-wrap: wrap; gap: .25rem 1rem; }
.menu a { text-decoration: none; padding: .25rem 0; color: var(--discret); }
.menu a:hover { color: var(--texte); }
.menu a[aria-current="page"] { color: var(--texte); font-weight: 600; border-bottom: 2px solid var(--accent); }

main { padding: 2.5rem 0 3.5rem; min-height: 60vh; }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.6rem); line-height: 1.2; margin: 0 0 1rem; }
h2 { font-size: 1.35rem; margin: 2rem 0 .5rem; }
.chapo { font-size: 1.15rem; color: var(--discret); max-width: 60ch; }
.bouton {
  display: inline-block; padding: .6rem 1.1rem; border-radius: 6px;
  background: var(--accent); color: var(--fond); text-decoration: none; font-weight: 600;
  margin: .25rem .5rem .25rem 0;
}
.bouton.secondaire { background: transparent; color: var(--accent); border: 1px solid var(--accent); }

.liste { padding-left: 1.2rem; }
.liste li { margin-bottom: .5rem; }

.grille { display: grid; gap: 1rem; grid-template-columns: 1fr; margin-top: 2rem; }
@media (min-width: 640px) { .grille { grid-template-columns: 1fr 1fr; } }
.carte {
  border: 1px solid var(--bordure); border-radius: 8px; padding: 1.1rem 1.2rem;
  background: var(--accent-clair);
}
.carte h2 { margin: 0 0 .4rem; font-size: 1.1rem; }
.carte h2 a { color: var(--accent); }
.carte p { margin: .3rem 0; }
.meta { color: var(--discret); font-size: .92rem; }

.texte p { max-width: 70ch; }
.texte h2 { font-size: 1.15rem; }

.pied { border-top: 1px solid var(--bordure); padding: 1.5rem 0; color: var(--discret); font-size: .92rem; }
.pied p { margin: .25rem 0; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}