:root { --fond: #F4F1EA; --encre: #1E1E1E; --doux: #5C574E; --accent: #E85D2A; --carte: #FFFFFF; --trait: #E3DDD1; }
@media (prefers-color-scheme: dark) { :root { --fond: #161513; --encre: #F4F1EA; --doux: #B9B2A5; --carte: #22201D; --trait: #3A3631; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--fond); color: var(--encre); font: 17px/1.6 "Segoe UI", system-ui, -apple-system, sans-serif; }
main, header, footer { max-width: 860px; margin: 0 auto; padding: 0 20px; }
header { display: flex; justify-content: space-between; align-items: center; padding-top: 24px; padding-bottom: 24px; }
header a { color: var(--encre); text-decoration: none; font-weight: 700; font-size: 20px; }
h1 { font-size: clamp(32px, 6vw, 52px); line-height: 1.1; letter-spacing: -1px; margin: 32px 0 16px; }
h2 { font-size: 24px; margin-top: 40px; }
p.chapeau { font-size: 20px; color: var(--doux); max-width: 640px; }
.cartes { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin: 32px 0; }
.carte { background: var(--carte); border: 1px solid var(--trait); border-radius: 14px; padding: 20px; }
.carte strong { display: block; margin-bottom: 6px; }
a { color: var(--accent); }
.bouton { display: inline-block; background: var(--accent); color: #fff; text-decoration: none; padding: 12px 22px; border-radius: 999px; font-weight: 600; }
footer { border-top: 1px solid var(--trait); margin-top: 64px; padding-top: 20px; padding-bottom: 40px; color: var(--doux); font-size: 14px; }
footer a { color: var(--doux); margin-right: 16px; }
.legal h2 { font-size: 20px; }
.legal li { margin-bottom: 6px; }