:root {
  --papier: #f4f4ed;
  --papier-2: #ebeae1;
  --encre: #23262e;
  --encre-2: #555a66;
  --trait: #d9d7cb;
  --t1: #5d6eb8; --t1-clair: #c3cce8;
  --t2: #599170; --t2-clair: #b6dbc3;
  --t3: #b8527c; --t3-clair: #efc1d3;
  --accent: var(--t1);
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  --largeur: 1120px;
  --rayon: 4px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--papier); color: var(--encre);
  font: 18px/1.65 var(--serif); -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
.wrap { max-width: var(--largeur); margin: 0 auto; padding: 0 24px; }
.label {
  font: 500 12px/1.4 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--encre-2);
}
h1, h2, h3 { font-weight: 700; line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(36px, 6vw, 64px); }
h2 { font-size: clamp(28px, 3.6vw, 40px); }
h3 { font-size: 22px; }
p { margin: 0 0 1em; }
.muted { color: var(--encre-2); }

/* En-tête */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--papier) 92%, transparent);
  backdrop-filter: blur(6px); border-bottom: 1px solid var(--trait);
}
.site-header .wrap { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; }
.brand svg { width: 28px; height: 25px; }
.brand small { display: block; font: 400 11px/1.2 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--encre-2); }
.nav { margin-left: auto; display: flex; gap: 22px; align-items: center; font: 500 13px var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.nav a { text-decoration: none; color: var(--encre-2); }
.nav a:hover { color: var(--encre); }
.cart-link { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border: 1px solid var(--encre); border-radius: 999px; color: var(--encre) !important; }
.cart-count { min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px; background: var(--encre); color: var(--papier); font-size: 11px; display: inline-grid; place-items: center; }
@media (max-width: 720px) { .nav .hide-sm { display: none; } }
@media (max-width: 520px) {
  .site-header .wrap { height: 56px; gap: 12px; padding: 0 16px; }
  .brand { font-size: 16px; line-height: 1.2; }
  .brand small { display: none; }
  .wrap { padding: 0 16px; }
  body { font-size: 17px; }
  .hero p.lead { font-size: 19px; }
}

/* Boutons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 22px; border-radius: var(--rayon); border: 1px solid var(--encre);
  background: var(--encre); color: var(--papier); cursor: pointer; text-decoration: none;
  font: 500 14px var(--mono); letter-spacing: .04em;
  transition: transform .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:disabled { opacity: .5; cursor: wait; transform: none; }
.btn-ghost { background: transparent; color: var(--encre); }
.btn-accent { background: var(--accent); border-color: var(--accent); }
.btn.added { background: var(--t2); border-color: var(--t2); }

/* Accueil */
.hero { padding: 72px 0 56px; border-bottom: 1px solid var(--trait); overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero p.lead { font-size: 22px; color: var(--encre-2); max-width: 32ch; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-covers { position: relative; height: 440px; }
.hero-covers img {
  position: absolute; width: 46%; border-radius: 2px;
  box-shadow: 0 18px 40px -18px rgba(20, 22, 30, .45), 0 2px 6px rgba(20, 22, 30, .12);
}
.hero-covers img:nth-child(1) { left: 0; top: 60px; transform: rotate(-6deg); }
.hero-covers img:nth-child(2) { left: 27%; top: 0; z-index: 2; }
.hero-covers img:nth-child(3) { right: 0; top: 70px; transform: rotate(6deg); }
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-covers { height: 320px; max-width: 420px; }
}

section { padding: 72px 0; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 36px; flex-wrap: wrap; }
.section-head p { max-width: 52ch; margin: 0; }

.trilogie { margin-bottom: 56px; }
.trilogie-head { display: flex; align-items: baseline; gap: 16px; padding-bottom: 12px; margin-bottom: 24px; border-bottom: 2px solid var(--c); }
.trilogie-head h3 { margin: 0; }
.trilogie-head .muted { margin: 0; font-size: 16px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
@media (max-width: 860px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .grid { grid-template-columns: 1fr; } }

.card { display: flex; flex-direction: column; }
.card a.cover { display: block; background: var(--papier-2); border-radius: 2px; overflow: hidden; }
.card a.cover img { transition: transform .35s ease; box-shadow: 0 10px 28px -16px rgba(20,22,30,.5); }
.card a.cover:hover img { transform: scale(1.025); }
.card .meta { padding-top: 14px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.card h4 { font-size: 21px; margin: 0; line-height: 1.2; }
.card h4 a { text-decoration: none; }
.card .sub { font-size: 15px; color: var(--encre-2); margin: 0; flex: 1; }
.card .buy { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; }
.price { font: 600 18px var(--mono); }

.band { background: var(--encre); color: var(--papier); }
.band .muted, .band .label { color: #b9bcc6; }
.integrale { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.integrale .stack { display: grid; grid-template-columns: repeat(9, 1fr); gap: 4px; }
.integrale .stack img { border-radius: 1px; }
.integrale .price { font-size: 28px; }
.integrale .old { text-decoration: line-through; color: #8d91a0; font: 400 16px var(--mono); margin-left: 10px; }
@media (max-width: 860px) { .integrale { grid-template-columns: 1fr; } }

.offer-rotator { position: relative; min-height: 190px; }
.offer { display: none; }
.offer.active { display: block; animation: offer-fade .4s ease; }
@keyframes offer-fade { from { opacity: 0; } to { opacity: 1; } }
.offer-rotator .dots { display: flex; gap: 8px; margin-top: 20px; }
.offer-rotator .dot { width: 8px; height: 8px; padding: 0; border: none; border-radius: 50%; background: #565a68; cursor: pointer; }
.offer-rotator .dot.active { background: var(--papier); }

.auteur { display: grid; grid-template-columns: 260px 1fr; gap: 48px; align-items: start; }
.auteur svg { width: 100%; height: auto; }
@media (max-width: 720px) { .auteur { grid-template-columns: 1fr; } .auteur svg { max-width: 200px; } }

.lexique { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: center; padding: 36px; border: 1px solid var(--trait); border-radius: var(--rayon); background: #fbfbf6; }
@media (max-width: 720px) { .lexique { grid-template-columns: 1fr; } }

/* Page livre */
.livre { padding: 56px 0 72px; }
.livre .wrap { display: grid; grid-template-columns: 380px 1fr; gap: 64px; align-items: start; }
.livre .cover img { box-shadow: 0 30px 60px -30px rgba(20,22,30,.55), 0 2px 8px rgba(20,22,30,.12); border-radius: 2px; }
.livre .accroche { font-size: 22px; font-style: italic; border-left: 3px solid var(--accent); padding-left: 20px; margin: 28px 0; }
.livre .panel { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; padding: 20px 0; margin: 28px 0; border-top: 1px solid var(--trait); border-bottom: 1px solid var(--trait); }
.livre .panel .price { font-size: 26px; }
.qty { display: inline-flex; border: 1px solid var(--encre); border-radius: var(--rayon); }
.qty button { width: 40px; border: 0; background: transparent; cursor: pointer; font: 500 18px var(--mono); color: var(--encre); }
.qty input { width: 44px; border: 0; text-align: center; font: 500 16px var(--mono); background: transparent; color: var(--encre); -moz-appearance: textfield; }
.qty input::-webkit-inner-spin-button { -webkit-appearance: none; }
.notions { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; list-style: none; }
.notions li { font: 500 13px var(--mono); padding: 6px 12px; border-radius: 999px; background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--encre); }
dl.fiche { display: grid; grid-template-columns: max-content 1fr; gap: 6px 24px; font-size: 15px; }
dl.fiche dt { font: 500 12px/2 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--encre-2); }
dl.fiche dd { margin: 0; }
.nav-tomes { display: flex; justify-content: space-between; gap: 16px; margin-top: 40px; font: 500 13px var(--mono); }
.nav-tomes a { text-decoration: none; color: var(--encre-2); }
@media (max-width: 860px) { .livre .wrap { grid-template-columns: 1fr; gap: 32px; } .livre .cover { max-width: 320px; } }

/* Panier */
.panier { padding: 56px 0 88px; min-height: 60vh; }
.panier-grid { display: grid; grid-template-columns: 1fr 340px; gap: 48px; align-items: start; }
.ligne { display: grid; grid-template-columns: 72px 1fr auto auto; gap: 20px; align-items: center; padding: 18px 0; border-bottom: 1px solid var(--trait); }
.ligne img { width: 72px; border-radius: 2px; }
.ligne h4 { margin: 0; font-size: 18px; }
.ligne .remove { border: 0; background: none; color: var(--encre-2); cursor: pointer; font: 400 12px var(--mono); text-decoration: underline; padding: 0; }
.recap { position: sticky; top: 88px; padding: 28px; background: #fbfbf6; border: 1px solid var(--trait); border-radius: var(--rayon); }
.recap .row { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 16px; }
.recap .total { font-weight: 700; font-size: 20px; border-top: 1px solid var(--trait); padding-top: 12px; margin-top: 12px; }
.recap .btn { width: 100%; margin-top: 20px; }
.recap small { display: block; margin-top: 12px; color: var(--encre-2); font-size: 13px; line-height: 1.5; }
.erreur { color: #a3303a; font-size: 14px; margin-top: 12px; }
.vide { text-align: center; padding: 64px 0; }
@media (max-width: 860px) {
  .panier-grid { grid-template-columns: 1fr; }
  .ligne { grid-template-columns: 56px 1fr auto; row-gap: 12px; }
  .ligne img { width: 56px; grid-row: span 2; }
  .ligne > div:nth-child(2) { grid-column: 2 / 4; }
  .ligne .qty { grid-column: 2; justify-self: start; }
}

/* Pages de texte */
.texte { padding: 56px 0 88px; }
.texte .wrap { max-width: 760px; }
.texte h2 { font-size: 24px; margin-top: 40px; }
.todo { background: #fff2c4; padding: 0 4px; border-radius: 2px; }

/* Pied de page */
.site-footer { border-top: 1px solid var(--trait); padding: 40px 0; font-size: 14px; color: var(--encre-2); }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 20px; flex-wrap: wrap; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 140%);
  background: var(--encre); color: var(--papier); padding: 12px 18px; border-radius: var(--rayon);
  font: 500 14px var(--mono); transition: transform .25s ease; z-index: 50;
}
.toast.show { transform: translate(-50%, 0); }
.toast a { color: var(--t1-clair); margin-left: 10px; }

/* Podcast (extraits par tome) */
.episodes { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 16px; }
.episode { padding: 14px 16px; border: 1px solid var(--trait); border-radius: var(--rayon); background: color-mix(in srgb, var(--accent) 5%, transparent); }
.episode-titre { font-weight: 600; margin: 0 0 8px; }
.episode audio { width: 100%; display: block; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }