:root {
  --fond: #fffaf6;
  --texte: #1d1b19;
  --doux: #6b625b;
  --accent: #e85d2a;
  --accent-fonce: #c94a1c;
  --carte: #ffffff;
  --bord: #efe4da;
  --vert: #1f8a4c;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--fond);
  color: var(--texte);
  line-height: 1.55;
  font-size: 17px;
}
a { color: var(--accent-fonce); }
.conteneur { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
header.haut { padding: 18px 0; }
header.haut .conteneur { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.logo { font-weight: 800; font-size: 20px; color: var(--texte); text-decoration: none; }
.logo span { color: var(--accent); }
.bouton {
  display: inline-block; background: var(--accent); color: #fff; border: 0; cursor: pointer;
  padding: 14px 22px; border-radius: 10px; font-weight: 700; font-size: 17px; text-decoration: none;
}
.bouton:hover { background: var(--accent-fonce); }
.bouton.petit { padding: 9px 14px; font-size: 15px; }
.bouton[disabled] { opacity: .6; cursor: wait; }
.hero { padding: 40px 0 56px; }
.hero h1 { font-size: clamp(30px, 5vw, 48px); line-height: 1.12; margin: 0 0 16px; letter-spacing: -0.5px; }
.hero p.sous { font-size: 19px; color: var(--doux); max-width: 640px; margin: 0 0 26px; }
.hero .grille { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.sms {
  background: var(--carte); border: 1px solid var(--bord); border-radius: 18px; padding: 20px;
  box-shadow: 0 10px 30px rgba(80, 40, 10, .08); font-size: 15px; max-width: 360px; justify-self: center;
}
.sms .bulle { background: #f1ece7; border-radius: 14px; padding: 12px 14px; white-space: pre-line; }
.sms .de { font-size: 12px; color: var(--doux); margin-bottom: 6px; }
.note { font-size: 14px; color: var(--doux); }
section { padding: 48px 0; }
section h2 { font-size: clamp(24px, 3.5vw, 32px); margin: 0 0 24px; }
.etapes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.carte { background: var(--carte); border: 1px solid var(--bord); border-radius: 14px; padding: 22px; }
.carte .num { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 800; margin-bottom: 10px; }
.carte h3 { margin: 0 0 6px; font-size: 19px; }
.carte p { margin: 0; color: var(--doux); }
.prix { text-align: center; }
.prix .montant { font-size: 52px; font-weight: 800; }
.prix ul { list-style: none; padding: 0; margin: 18px auto 26px; max-width: 420px; text-align: left; }
.prix li { padding: 6px 0 6px 28px; position: relative; }
.prix li::before { content: "✓"; position: absolute; left: 0; color: var(--vert); font-weight: 800; }
details { background: var(--carte); border: 1px solid var(--bord); border-radius: 12px; padding: 14px 18px; margin-bottom: 10px; }
summary { cursor: pointer; font-weight: 700; }
footer { padding: 30px 0 40px; color: var(--doux); font-size: 14px; border-top: 1px solid var(--bord); margin-top: 30px; }
footer a { color: var(--doux); margin-right: 14px; }
form .champ { margin-bottom: 16px; }
form label { display: block; font-weight: 700; margin-bottom: 6px; }
form .aide { font-size: 14px; color: var(--doux); margin-top: 4px; }
input[type=text], input[type=email], input[type=tel], select {
  width: 100%; padding: 12px 14px; border: 1px solid #d9cdc2; border-radius: 10px; font-size: 17px; background: #fff;
}
input:focus, select:focus { outline: 2px solid var(--accent); border-color: transparent; }
.case { display: flex; gap: 10px; align-items: flex-start; font-weight: 400 !important; }
.case input { margin-top: 5px; }
.erreurs { background: #fdecea; border: 1px solid #f5c2bc; color: #8a1c10; padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; }
.piege { position: absolute; left: -5000px; }
.code { font-family: ui-monospace, Consolas, monospace; font-size: 26px; font-weight: 800; background: #fff; border: 2px dashed var(--accent); border-radius: 12px; padding: 14px; text-align: center; letter-spacing: 1px; word-break: break-all; }
.etroit { max-width: 640px; }
.ok { color: var(--vert); font-weight: 700; }
@media (max-width: 760px) {
  .hero .grille, .etapes { grid-template-columns: 1fr; }
  .hero { padding-top: 16px; }
  .sms { justify-self: stretch; max-width: none; }
}
.creneau { display: grid; grid-template-columns: 120px auto 1fr auto 1fr; gap: 8px; align-items: center; margin-bottom: 8px; }
.creneau select { padding: 8px 10px; font-size: 16px; }
.creneau .case { margin: 0; }
@media (max-width: 420px) { .creneau { grid-template-columns: 100px auto 1fr auto 1fr; gap: 4px; } }