/* Second Cerveau — papier, encre et ocre, comme les aquarelles de Lucas */
:root {
  --papier: #fbf8f2;
  --creme: #f3ece0;
  --encre: #23304a;
  --encre-douce: #4a5670;
  --ocre: #c98a2e;
  --ocre-doux: #f4e3c6;
  --bord: #e6dccb;
  --carte: #ffffff;
  --ombre: 0 2px 18px rgba(35, 48, 74, .07);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --papier: #1b1d24; --creme: #23262f; --encre: #ece6da; --encre-douce: #b9b2a4;
    --ocre: #e2a955; --ocre-doux: #3a3123; --bord: #343846; --carte: #22252d;
    --ombre: 0 2px 18px rgba(0, 0, 0, .3);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--papier); color: var(--encre);
  font-family: Georgia, "Times New Roman", serif; font-size: 19px; line-height: 1.65;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ocre); }
.enveloppe { max-width: 760px; margin: 0 auto; padding: 0 16px; }
.large { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

/* En-tête */
header.haut { padding: 18px 0; }
header.haut .large { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.marque { font-size: 1.15rem; color: var(--encre); text-decoration: none; letter-spacing: .02em; }
nav.menu a { color: var(--encre-douce); text-decoration: none; margin-left: 18px; font-size: 1rem; white-space: nowrap; display: inline-block; }
nav.menu a:hover { color: var(--ocre); }

/* Ouverture */
.ouverture { text-align: center; padding: 20px 0 30px; }
.ouverture img { width: min(420px, 82vw); margin: 0 auto 8px; border-radius: 6px; }
h1 { font-size: clamp(2rem, 6vw, 3rem); line-height: 1.2; font-weight: normal; margin: .3em 0; }
.chapeau { font-size: 1.22rem; color: var(--encre-douce); max-width: 620px; margin: 0 auto 1.2em; }
h2 { font-size: clamp(1.5rem, 4.5vw, 2rem); font-weight: normal; line-height: 1.3; margin: 0 0 .6em; }
h3 { font-size: 1.2rem; margin: 0 0 .3em; }
section { padding: 46px 0; }
section.teinte { background: var(--creme); }
.petit { font-size: 1rem; color: var(--encre-douce); }

/* Boutons */
.bouton {
  display: inline-block; background: var(--encre); color: var(--papier); text-decoration: none;
  padding: 15px 34px; border-radius: 99px; font-size: 1.1rem; box-shadow: var(--ombre);
}
.bouton:hover { filter: brightness(1.15); }
.bouton.clair { background: transparent; color: var(--encre); border: 2px solid var(--bord); box-shadow: none; }

/* Les cinq dossiers */
.dossiers { display: grid; gap: 14px; margin-top: 18px; }
.dossier { background: var(--carte); border: 1px solid var(--bord); border-radius: 12px; padding: 18px 20px; box-shadow: var(--ombre); }
.dossier strong { color: var(--ocre); }

/* Étapes */
.etapes { counter-reset: e; display: grid; gap: 18px; margin-top: 18px; }
.etape { display: grid; grid-template-columns: 52px 1fr; gap: 14px; align-items: start; }
.etape::before {
  counter-increment: e; content: counter(e); width: 46px; height: 46px; border-radius: 50%;
  background: var(--ocre-doux); color: var(--encre); display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem;
}

/* Cartes illustrées */
.cartes { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; margin-top: 20px; }
.carte { background: var(--carte); border: 1px solid var(--bord); border-radius: 14px; overflow: hidden; box-shadow: var(--ombre); }
.carte img { aspect-ratio: 1 / 1; object-fit: cover; }
.carte .texte { padding: 14px 18px 18px; }
.carte p { margin: .2em 0 0; font-size: 1rem; color: var(--encre-douce); }

/* Prix */
.prix { background: var(--carte); border: 2px solid var(--ocre); border-radius: 18px; padding: 28px 24px; text-align: center; box-shadow: var(--ombre); }
.prix .montant { font-size: 2.6rem; margin: .1em 0; }
.prix ul { text-align: left; max-width: 520px; margin: 18px auto; padding-left: 1.2em; }
.prix li { margin: .35em 0; }

/* Questions */
details { background: var(--carte); border: 1px solid var(--bord); border-radius: 12px; padding: 14px 18px; margin: 10px 0; }
summary { cursor: pointer; font-size: 1.08rem; }
details p { margin: .7em 0 .2em; }

/* Liste des commandes */
table.cmd { width: 100%; border-collapse: collapse; margin: 10px 0 28px; }
table.cmd td { padding: 10px 8px; border-bottom: 1px solid var(--bord); vertical-align: top; }
table.cmd td:first-child { white-space: nowrap; color: var(--ocre); width: 1%; padding-right: 16px; }
@media (max-width: 520px) {
  table.cmd td { display: block; border: 0; padding: 2px 0; }
  table.cmd tr { display: block; padding: 10px 0; border-bottom: 1px solid var(--bord); }
  nav.menu a { margin: 0 14px 0 0; }
}

footer { padding: 34px 0 50px; font-size: 1rem; color: var(--encre-douce); text-align: center; }
footer a { color: var(--encre-douce); }