:root {
  color-scheme: light;
  --fond: #f6f4ef;
  --surface: #ffffff;
  --texte: #292c38;
  --secondaire: #626570;
  --bordure: #dadce2;
  --accent: #a85024;
  --danger: #a52e36;
  --ombre: 0 20px 55px rgba(41, 44, 56, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--fond);
  color: var(--texte);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

button, input { font: inherit; }

.page {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 80px;
}

.entete {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 72px;
}

.marque {
  color: var(--texte);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 32px;
  text-decoration: none;
}

.repere, .surtitre {
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: Georgia, "Times New Roman", serif; font-weight: 400; }
h1 { max-width: 620px; margin-bottom: 18px; font-size: clamp(44px, 9vw, 72px); line-height: 0.98; }
h2 { margin-bottom: 20px; font-size: 30px; line-height: 1.1; }
h3 { margin-bottom: 8px; font-size: 16px; }

.intro { margin-bottom: 52px; }
.chapeau { max-width: 610px; color: var(--secondaire); font-size: 19px; }

.explication { margin-bottom: 28px; }
.colonnes { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.colonnes > div { padding: 20px; border: 1px solid var(--bordure); border-radius: 18px; }
.colonnes p { margin-bottom: 0; color: var(--secondaire); }
.avertissement { margin: 18px 0 0; color: var(--danger); font-weight: 700; }

.carte {
  margin-top: 20px;
  padding: clamp(22px, 5vw, 38px);
  border: 1px solid var(--bordure);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: var(--ombre);
}

form { display: grid; }
label { display: block; margin: 14px 0 7px; font-weight: 650; }
input[type="email"], input[type="password"], input[type="text"] {
  width: 100%;
  padding: 14px 15px;
  border: 1px solid var(--bordure);
  border-radius: 12px;
  background: #fff;
  color: var(--texte);
  outline: none;
}
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(168, 80, 36, 0.12); }

button {
  width: 100%;
  margin-top: 18px;
  padding: 14px 18px;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 750;
}
button:disabled { cursor: not-allowed; opacity: 0.45; }
.primaire { background: var(--texte); color: #fff; }
.secondaire { border: 1px solid var(--bordure); background: #fff; color: var(--texte); }
.danger { background: var(--danger); color: #fff; }
.lien { margin-top: 8px; background: transparent; color: var(--secondaire); }
.lien-inline { width: auto; justify-self: end; margin: 4px 0 0; padding: 6px 0; font-size: 14px; }

.separateur { display: flex; align-items: center; gap: 12px; margin-top: 18px; color: var(--secondaire); }
.separateur::before, .separateur::after { content: ""; height: 1px; flex: 1; background: var(--bordure); }
.message { margin: 18px 0 0; }
.erreur { color: var(--danger); }
.info { color: var(--accent); }
.compte { color: var(--secondaire); }
.case { display: flex; align-items: flex-start; gap: 10px; font-weight: 500; }
.case input { margin-top: 5px; }
.succes { border-color: rgba(168, 80, 36, 0.35); }
.contact { margin-top: 32px; color: var(--secondaire); font-size: 14px; text-align: center; }
.contact p { margin-bottom: 0; }
.contact a { color: var(--accent); font-weight: 700; }
[hidden] { display: none !important; }

@media (max-width: 580px) {
  .page { padding-top: 22px; }
  .entete { margin-bottom: 50px; }
  .repere { font-size: 11px; }
  .colonnes { grid-template-columns: 1fr; }
}

@media (prefers-color-scheme: dark) {
  :root { color-scheme: dark; --fond: #0b1020; --surface: #1b2340; --texte: #e6e8f2; --secondaire: #b9bdcc; --bordure: #343d5d; --accent: #d06624; --danger: #e45b62; --ombre: none; }
  input[type="email"], input[type="password"], input[type="text"], .secondaire { background: #11182d; color: var(--texte); }
}