/* INTERACTIONS — bibliothèque filtrable, header flottant, curseur doré, apparitions.
   Couleurs écrites en dur : la palette aubergine / pierre / eucalyptus / or. */

/* ---------- Header flottant en verre ---------- */
.rh {
  top: 14px; left: 50%; right: auto; transform: translateX(-50%);
  width: min(1200px, calc(100% - 32px));
  border-radius: 999px;
  border: 1px solid rgba(236, 228, 213, 0.14);
  background: rgba(30, 26, 28, 0.55);
  backdrop-filter: blur(18px) saturate(140%); -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow: 0 18px 40px -22px rgba(0, 0, 0, 0.6);
  padding: 10px 12px 10px 28px;
}
@media (max-width: 900px) {
  .rh { top: 10px; width: calc(100% - 20px); border-radius: 26px; padding: 10px 12px 10px 18px; flex-wrap: wrap; }
}
@media (max-width: 440px) {
  .rh { padding: 8px 8px 8px 14px; gap: 8px; }
  .rh-logo { font-size: 20px; }
  .rh-cta { padding: 8px 12px; }
  .rh-cta b { font-size: 10.5px; letter-spacing: 0.05em; }
}

/* ---------- Bibliothèque ---------- */
.lib { padding: clamp(80px, 12vh, 140px) 0; }
.lib-wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.lib-head { text-align: center; max-width: 620px; margin: 0 auto 32px; }
.lib-head p { color: #C8BDAE; font-size: 16px; line-height: 1.7; margin-top: 14px; }
.lib-filters { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 44px; }
.lib-chip {
  font: inherit; font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  color: #ECE4D5; background: transparent; cursor: pointer;
  border: 1px solid rgba(236, 228, 213, 0.28); border-radius: 999px; padding: 11px 20px;
  transition: background .3s, color .3s, border-color .3s;
}
.lib-chip:hover { border-color: #C9A76E; }
.lib-chip.is-on { background: #ECE4D5; color: #2a1c27; border-color: #ECE4D5; }

.lib-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.lib-card {
  display: flex; flex-direction: column; text-decoration: none; color: inherit;
  border-radius: 18px; overflow: hidden; background: #211620;
  border: 1px solid rgba(236, 228, 213, 0.1);
  transition: transform .5s cubic-bezier(.2,.7,.2,1), box-shadow .5s, opacity .4s;
}
.lib-card:hover { transform: translateY(-8px); box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.8); }
.lib-card.is-hidden { display: none; }
.lib-img {
  position: relative; aspect-ratio: 4 / 5; overflow: hidden;
  background: #160f14;
}
.lib-img::before {
  content: ""; position: absolute; inset: 0;
  background: var(--img) center / cover no-repeat;
  transition: transform 1.2s cubic-bezier(.2,.7,.2,1);
}
.lib-card:hover .lib-img::before { transform: scale(1.06); }
.lib-img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(14, 9, 12, 0.15) 30%, rgba(14, 9, 12, 0.85) 100%);
}
.lib-badge, .lib-price {
  position: absolute; top: 14px; z-index: 2;
  font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 6px 11px; border-radius: 999px;
}
.lib-badge { left: 14px; background: rgba(14, 9, 12, 0.6); color: #ECE4D5; backdrop-filter: blur(6px); }
.lib-price { right: 14px; background: #ECE4D5; color: #2a1c27; font-weight: 600; }
.lib-over { position: absolute; left: 22px; right: 22px; bottom: 22px; z-index: 2; }
.lib-kicker { font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase; color: #C9A76E; }
.lib-over h3 {
  font-family: 'Cormorant Garamond', Georgia, serif; font-weight: 400;
  font-size: 30px; line-height: 1.08; color: #ECE4D5; margin-top: 8px;
}
.lib-body { padding: 22px; display: flex; flex-direction: column; gap: 18px; flex: 1; }
.lib-body p { font-size: 14.5px; line-height: 1.65; color: #C8BDAE; flex: 1; }
.lib-btn {
  align-self: stretch; text-align: center;
  font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  border: 1px solid rgba(236, 228, 213, 0.3); border-radius: 999px; padding: 13px 18px;
  color: #ECE4D5; transition: background .35s, color .35s, border-color .35s;
}
.lib-card:hover .lib-btn { background: #ECE4D5; color: #2a1c27; border-color: #ECE4D5; }

@media (max-width: 980px) { .lib-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) {
  .lib-grid { grid-template-columns: 1fr; gap: 20px; }
  .lib-chip { padding: 10px 14px; font-size: 11px; }
}

/* ---------- Apparitions au défilement ---------- */
.js-anim .ph-band, .js-anim .lib-card, .js-anim .ph-strip div {
  opacity: 0; transform: translateY(28px);
  transition: opacity 1s ease, transform 1s cubic-bezier(.2,.7,.2,1);
}
.js-anim .is-in { opacity: 1 !important; transform: none !important; }
.js-anim .lib-card.is-in:hover { transform: translateY(-8px) !important; }

/* ---------- Curseur doré (ordinateur uniquement) ---------- */
.cur-ring, .cur-dot {
  position: fixed; top: 0; left: 0; pointer-events: none; z-index: 9999;
  border-radius: 50%; opacity: 0; transition: opacity .3s;
}
.cur-ring {
  width: 38px; height: 38px; margin: -19px 0 0 -19px;
  border: 1px solid #C9A76E;
  transition: opacity .3s, width .3s, height .3s, margin .3s, background .3s;
}
.cur-dot { width: 5px; height: 5px; margin: -2.5px 0 0 -2.5px; background: #ECE4D5; }
.has-cursor .cur-ring, .has-cursor .cur-dot { opacity: 1; }
.cur-ring.is-big { width: 64px; height: 64px; margin: -32px 0 0 -32px; background: rgba(201, 167, 110, 0.12); }

@media (prefers-reduced-motion: reduce) {
  .js-anim .ph-band, .js-anim .lib-card, .js-anim .ph-strip div { opacity: 1; transform: none; transition: none; }
  .lib-card, .lib-img::before { transition: none; }
}

/* ---------- Alternance vert / prune ---------- */
/* Sections vertes (eucalyptus foncé) : les italiques passent en mauve, pour répondre au vert des sections prune */
.s-vert { background-color: #2F352A !important; background-image: none !important; }
.s-vert em { color: #D9AFCB !important; }
.s-vert .lib-card, .s-vert .bento-cell:not(.bento-price) { background: #31232e; }
footer { background-color: #23281F !important; background-image: none !important; }

/* Cartes des livres : la vraie couverture, pas une photo d'ambiance */
.lib-img--livre { background: radial-gradient(circle at 50% 40%, #3a2a37 0%, #211620 80%); display: flex; align-items: center; justify-content: center; }
.lib-img--livre::before, .lib-img--livre::after { display: none; }
.lib-img--livre img {
  width: 58%; aspect-ratio: 1000 / 1414; object-fit: cover; border-radius: 3px;
  box-shadow: 0 28px 40px -18px rgba(0, 0, 0, 0.75), 0 0 0 1px rgba(236, 228, 213, 0.12);
  transition: transform .8s cubic-bezier(.2,.7,.2,1);
}
.lib-card:hover .lib-img--livre img { transform: translateY(-6px) scale(1.03); }
.lib-img--livre .lib-duo-a, .lib-img--livre .lib-duo-b { position: absolute; width: 46%; }
.lib-img--livre .lib-duo-a { left: 7%; top: 22%; transform: rotate(-5deg); }
.lib-img--livre .lib-duo-b { right: 7%; top: 28%; transform: rotate(4deg); }
.lib-card:hover .lib-img--livre .lib-duo-a { transform: rotate(-6deg) translateY(-6px); }
.lib-card:hover .lib-img--livre .lib-duo-b { transform: rotate(5deg) translateY(-6px); }
.lib-titre h3 { font-family: 'Cormorant Garamond', Georgia, serif; font-weight: 400; font-size: 28px; line-height: 1.1; color: #ECE4D5; margin-top: 8px; }