:root {
  --vert: #0e7a5c;
  --vert-fonce: #0a5a44;
  --vert-clair: #e5f4ee;
  --texte: #1c2421;
  --gris: #5d6b66;
  --fond: #ffffff;
  --carte: #f6f8f7;
  --bord: #dfe6e3;
}
@media (prefers-color-scheme: dark) {
  :root {
    --vert-clair: #12382d;
    --texte: #eef3f1;
    --gris: #a7b5b0;
    --fond: #101614;
    --carte: #18201d;
    --bord: #26312d;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color: var(--texte);
  background: var(--fond);
  line-height: 1.55;
}
a { color: var(--vert); }
img { max-width: 100%; }
.bar {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1040px; margin: 0 auto; padding: 16px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 1.2rem; color: var(--texte); text-decoration: none;
}
.brand img { border-radius: 8px; }
.langs { display: flex; gap: 4px; }
.langs a {
  padding: 6px 10px; border-radius: 8px; text-decoration: none; font-weight: 600;
  color: var(--gris); border: 1px solid var(--bord);
}
.langs a[aria-current] { background: var(--vert); border-color: var(--vert); color: #fff; }
section, .doc { max-width: 1040px; margin: 0 auto; padding: 40px 16px; }
.doc { max-width: 760px; }
.hero { display: grid; gap: 32px; align-items: center; grid-template-columns: 1.2fr 0.8fr; }
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; margin: 0 0 16px; }
.hero p { font-size: 1.15rem; color: var(--gris); margin: 0 0 24px; }
.hero .logo { justify-self: center; width: min(280px, 70vw); border-radius: 48px; }
.btn {
  display: inline-block; padding: 14px 22px; border-radius: 12px;
  background: var(--vert); color: #fff; font-weight: 600; text-decoration: none;
}
.btn:hover { background: var(--vert-fonce); }
.note { font-size: 0.9rem; color: var(--gris); margin-top: 10px; }
.badge {
  display: inline-block; padding: 4px 10px; border-radius: 999px;
  background: var(--vert-clair); color: var(--vert); font-weight: 600; font-size: 0.85rem;
  margin-bottom: 16px;
}
h2 { font-size: 1.6rem; margin: 0 0 20px; }
.doc h2 { font-size: 1.2rem; margin: 28px 0 8px; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.card { background: var(--carte); border: 1px solid var(--bord); border-radius: 16px; padding: 20px; }
.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--gris); }
.steps { counter-reset: n; list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.steps li { counter-increment: n; display: flex; gap: 14px; align-items: flex-start; }
.steps li::before {
  content: counter(n); flex: none; width: 32px; height: 32px; border-radius: 50%;
  background: var(--vert); color: #fff; display: grid; place-items: center; font-weight: 700;
}
.prix .card strong { display: block; font-size: 1.6rem; color: var(--vert); margin: 6px 0; }
.muted { color: var(--gris); }
footer {
  border-top: 1px solid var(--bord); padding: 24px 16px; text-align: center;
  font-size: 0.9rem; color: var(--gris);
}
footer a { margin: 0 8px; }
@media (max-width: 720px) {
  .hero { grid-template-columns: 1fr; }
  .hero .logo { grid-row: 1; width: 160px; border-radius: 32px; }
}