/*
 * HOCUS Opus Lab — surcouche minimale au-dessus de styles.css + ux.css.
 * Le hero est celui de la home ; seule la figure (.hero-plate) change.
 */
:root {
  --opus-ink: #0b0f14;
  --opus-night: #10151c;
  --opus-paper: #f5f1ea;
  --opus-sand: #eae4da;
  --opus-terra: #e46444;
  --opus-bordeaux: #6d2230;
  --opus-brass: #c6a568;
  --opus-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --opus-serif: Georgia, "Times New Roman", serif;
  --opus-grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .55 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── Scène : la figure du hero devient un canvas ───────────────────────── */

.opus-exp { padding-bottom: 0; }
.opus-exp .hero-plate {
  background:
    radial-gradient(ellipse 34% 42% at 70% 48%, rgba(132, 38, 56, .7), transparent 70%),
    radial-gradient(ellipse 18% 24% at 74% 42%, rgba(228, 100, 68, .45), transparent 70%),
    var(--opus-night);
}
.opus-exp .hero-plate canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.opus-exp .hero-plate::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image: var(--opus-grain);
  opacity: .16;
  mix-blend-mode: overlay;
}
.opus-exp .hero-plate::after { z-index: 1; pointer-events: none; }
.opus-exp .hero-plate figcaption { z-index: 2; max-width: min(420px, 40vw); text-align: right; }
.opus-exp .hero-plate figcaption strong { font-weight: 400; }
.opus-exp .hero { cursor: default; touch-action: pan-y; }
/* Le dégradé réel se termine à .12 d’opacité : invisible sur une image fixe, mais il crée une couture sur une scène animée. */
.opus-exp .hero-copy { background: linear-gradient(90deg, #0b0f14 0 53%, rgba(11, 15, 20, .84) 75%, rgba(11, 15, 20, 0) 100%); }
.opus-exp .hero-copy { pointer-events: none; }
.opus-exp .hero-copy a, .opus-exp .hero-copy p, .opus-exp .hero-copy h1 { pointer-events: auto; }

/* Infobulle décorative (le portefeuille réel reste dans le HTML de la home). */
.opus-tip {
  position: absolute;
  z-index: 3;
  top: 0;
  left: 0;
  width: 232px;
  padding: 13px 14px 14px;
  border: 1px solid rgba(245, 241, 234, .22);
  border-left: 2px solid var(--opus-terra);
  background: rgba(11, 15, 20, .82);
  color: var(--opus-paper);
  backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
}
.opus-tip.is-on { opacity: 1; }
.opus-tip b { display: block; font-size: 19px; letter-spacing: -.03em; }
.opus-tip small { display: block; margin: 3px 0 8px; color: var(--opus-brass); font: 9px/1.4 var(--opus-mono); letter-spacing: .08em; text-transform: uppercase; }
.opus-tip span { display: block; color: rgba(245, 241, 234, .74); font-size: 12.5px; line-height: 1.45; }

/* 18 : la légende se pose sur l’illustration, quel que soit le fond. */
.opus-exp[data-exp="18"] .hero-plate figcaption { padding: 8px 12px; background: rgba(11, 15, 20, .78); color: var(--opus-paper); }
.opus-exp[data-exp="18"] .hero-plate figcaption span { color: rgba(245, 241, 234, .72) !important; }
/* Le canvas fond déjà l’illustration vers le texte : le dégradé de la colonne créerait une couture. */
.opus-exp[data-exp="18"] .hero-copy, [data-ground="paper"] .opus-exp[data-exp="18"] .hero-copy { background: none; }

/* Liens d’offres (07B) : vrais liens HTML, visibles au focus clavier. */
.opus-offers { position: absolute; z-index: 4; top: 18px; right: var(--pad); margin: 0; padding: 0; list-style: none; }
.opus-offers a { position: absolute; right: 0; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.opus-offers a:focus { width: auto; height: auto; overflow: visible; clip-path: none; padding: 9px 12px; border: 1px solid var(--opus-terra); background: rgba(11, 15, 20, .9); color: var(--opus-paper); font: 10px var(--opus-mono); letter-spacing: .07em; text-transform: uppercase; }
[data-ground="paper"] .opus-offers a:focus { background: rgba(245, 241, 234, .95); color: var(--opus-ink); }

/* ── Fond crème (contrainte du brief) ──────────────────────────────────── */

[data-ground="paper"] .opus-exp .hero { background: var(--opus-paper); color: var(--opus-ink); }
[data-ground="paper"] .opus-exp .hero-plate { background: radial-gradient(ellipse 34% 42% at 70% 48%, rgba(109, 34, 48, .22), transparent 70%), var(--opus-paper); }
[data-ground="paper"] .opus-exp .hero-plate::before { opacity: .22; mix-blend-mode: multiply; }
[data-ground="paper"] .opus-exp .hero-plate::after {
  background: linear-gradient(90deg, rgba(245, 241, 234, .98), rgba(245, 241, 234, .66) 29%, rgba(245, 241, 234, .06) 64%);
}
[data-ground="paper"] .opus-exp .hero-copy { background: linear-gradient(90deg, #f5f1ea 0 53%, rgba(245, 241, 234, .84) 75%, rgba(245, 241, 234, .1) 100%); }
[data-ground="paper"] .opus-exp .hero-intro { color: #3f3a35; }
[data-ground="paper"] .opus-exp .button.quiet { border-color: rgba(11, 15, 20, .5); }
[data-ground="paper"] .opus-exp .button.quiet:hover { background: var(--opus-ink); color: var(--opus-paper); }
[data-ground="paper"] .opus-exp .scroll-cue { border-top-color: rgba(11, 15, 20, .16); }
[data-ground="paper"] .opus-exp .scroll-cue i { border-top-color: rgba(11, 15, 20, .16); }
[data-ground="paper"] .opus-exp .hero-plate figcaption span { color: rgba(11, 15, 20, .6); }
[data-ground="paper"] .opus-exp .hero-plate figcaption strong { color: #8a6a2e; }
[data-ground="paper"] .opus-tip { background: rgba(245, 241, 234, .9); color: var(--opus-ink); border-color: rgba(11, 15, 20, .2); border-left-color: var(--opus-terra); }
[data-ground="paper"] .opus-tip small { color: #8a6a2e; }
[data-ground="paper"] .opus-tip span { color: #4a443d; }

/* ── Note de piste sous le hero ────────────────────────────────────────── */

.opus-note {
  padding: clamp(80px, 11vw, 150px) var(--pad) clamp(120px, 12vw, 170px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(40px, 8vw, 120px);
  background: var(--opus-paper);
}
.opus-note h2 { margin: 30px 0 0; font-size: clamp(42px, 5vw, 78px); }
.opus-note-body > p { max-width: 540px; margin: 0 0 28px; color: #3f3a35; font-size: 17px; }
.opus-spec { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(11, 15, 20, .16); }
.opus-spec li { display: grid; grid-template-columns: 150px 1fr; gap: 18px; padding: 14px 0; border-bottom: 1px solid rgba(11, 15, 20, .16); font-size: 14px; }
.opus-spec li > span:first-child { color: var(--opus-terra); font: 10px/1.9 var(--opus-mono); letter-spacing: .08em; text-transform: uppercase; }

/* ── Dock discret : précédent / galerie / fond / suivant ───────────────── */

.opus-dock {
  position: fixed;
  z-index: 40;
  left: 50%;
  bottom: max(14px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  display: flex;
  align-items: stretch;
  border: 1px solid rgba(245, 241, 234, .18);
  background: rgba(11, 15, 20, .86);
  color: var(--opus-paper);
  backdrop-filter: blur(10px);
  font: 10px var(--opus-mono);
  letter-spacing: .07em;
  text-transform: uppercase;
  box-shadow: 0 10px 30px rgba(11, 15, 20, .22);
}
.opus-dock > * { display: flex; align-items: center; gap: 8px; padding: 11px 14px; white-space: nowrap; }
.opus-dock > * + * { border-left: 1px solid rgba(245, 241, 234, .14); }
.opus-dock a:hover { color: var(--opus-terra); }
.opus-dock b { color: var(--opus-terra); font-weight: 400; font-size: 13px; }
.opus-dock .opus-dock-index { color: var(--opus-brass); }
.opus-ground { gap: 0; padding: 5px; }
.opus-ground button {
  min-height: 30px;
  padding: 0 10px;
  border: 0;
  background: none;
  color: rgba(245, 241, 234, .6);
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  cursor: pointer;
}
.opus-ground button[aria-pressed="true"] { background: var(--opus-paper); color: var(--opus-ink); }
.opus-ground button:focus-visible { outline: 2px solid var(--opus-terra); outline-offset: 1px; }

/* ── Galerie /exp_opus ─────────────────────────────────────────────────── */

.opus-gallery { background: var(--opus-paper); }
.opus-intro { max-width: 1440px; margin: 0 auto; padding: clamp(70px, 10vw, 140px) var(--pad) clamp(50px, 7vw, 90px); display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(260px, .65fr); gap: 50px; align-items: end; }
.opus-intro h1 { margin-top: 30px; font-size: clamp(56px, 8vw, 128px); }
.opus-intro-copy p { margin: 0; max-width: 400px; font-size: 17px; color: #3f3a35; }
.opus-intro-copy .opus-small { margin-top: 26px; padding-top: 16px; border-top: 1px solid rgba(11, 15, 20, .22); color: #6d665f; font: 10px/1.7 var(--opus-mono); letter-spacing: .06em; text-transform: uppercase; }
.opus-intro-copy .opus-small a { border-bottom: 1px solid currentColor; }

.opus-grid { max-width: 1440px; margin: 0 auto; padding: 0 var(--pad) clamp(70px, 9vw, 120px); display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.opus-card { position: relative; min-width: 0; display: flex; flex-direction: column; background: var(--opus-ink); color: var(--opus-paper); transition: transform .45s cubic-bezier(.2, .7, .3, 1), box-shadow .45s ease; }
.opus-card:hover { transform: translateY(-6px); box-shadow: 0 18px 36px rgba(11, 15, 20, .2); }
.opus-card:focus-within { box-shadow: 0 0 0 3px var(--opus-terra); }
.opus-mini { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: radial-gradient(ellipse 40% 45% at 55% 50%, rgba(132, 38, 56, .65), transparent 70%), var(--opus-night); }
.opus-mini canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.opus-mini-still img { position: absolute; inset: 0; width: 100%; height: 100%; display: block; object-fit: cover; transition: transform .6s ease; }
.opus-card:hover .opus-mini-still img { transform: scale(1.04); }
.opus-mini::after { content: ""; position: absolute; inset: 0; background-image: var(--opus-grain); opacity: .14; mix-blend-mode: overlay; pointer-events: none; }
.opus-card-meta { position: absolute; z-index: 2; top: 14px; left: 16px; right: 16px; display: flex; justify-content: space-between; color: rgba(245, 241, 234, .72); font: 9px var(--opus-mono); letter-spacing: .08em; text-transform: uppercase; pointer-events: none; }
.opus-card-meta b { color: var(--opus-paper); font-size: 30px; font-weight: 400; letter-spacing: -.04em; font-family: var(--opus-serif); line-height: 1; }
.opus-card-copy { flex: 1; display: flex; flex-direction: column; align-items: flex-start; padding: 22px 22px 22px; border-top: 1px solid rgba(245, 241, 234, .14); }
.opus-card-copy .eyebrow { color: var(--opus-brass); }
.opus-card-copy h2 { margin-top: 12px; font-size: clamp(30px, 2.6vw, 44px); }
.opus-card-copy h2 a::after { content: ""; position: absolute; inset: 0; z-index: 3; }
.opus-card-copy > p:not(.eyebrow) { margin: 14px 0 20px; color: rgba(245, 241, 234, .72); font-size: 14.5px; }
.opus-card-copy .opus-judge { margin-top: auto; width: 100%; padding-top: 14px; border-top: 1px solid rgba(245, 241, 234, .14); color: rgba(245, 241, 234, .6); font: 10px/1.6 var(--opus-mono); letter-spacing: .05em; text-transform: uppercase; }
.opus-variant { position: relative; z-index: 4; margin-top: 12px; padding: 10px 12px; width: 100%; border: 1px solid rgba(198, 165, 104, .45); color: var(--opus-brass); font: 10px/1.5 var(--opus-mono); letter-spacing: .05em; text-transform: uppercase; }
.opus-variant:hover { background: var(--opus-brass); color: var(--opus-ink); }
.opus-card-copy .opus-judge b { color: var(--opus-terra); font-weight: 400; }

.opus-matrix { max-width: 1440px; margin: 0 auto; padding: 0 var(--pad) clamp(90px, 10vw, 150px); }
.opus-matrix h2 { margin: 26px 0 36px; font-size: clamp(38px, 4.4vw, 68px); }
.opus-table-wrap { overflow-x: auto; border-top: 1px solid rgba(11, 15, 20, .2); }
.opus-table { width: 100%; min-width: 760px; border-collapse: collapse; font-size: 14px; }
.opus-table th, .opus-table td { padding: 14px 12px 14px 0; border-bottom: 1px solid rgba(11, 15, 20, .14); text-align: left; vertical-align: top; }
.opus-table th { color: #6d665f; font: 10px var(--opus-mono); letter-spacing: .08em; text-transform: uppercase; font-weight: 400; }
.opus-table td:first-child { font-weight: 700; white-space: nowrap; }
.opus-table .dots { color: var(--opus-terra); letter-spacing: .15em; white-space: nowrap; }

.opus-foot { padding: 24px var(--pad); display: flex; flex-wrap: wrap; gap: 14px 25px; justify-content: space-between; border-top: 1px solid rgba(11, 15, 20, .14); background: var(--opus-paper); font: 10px var(--opus-mono); letter-spacing: .06em; text-transform: uppercase; }
.opus-foot a { border-bottom: 1px solid currentColor; }

/* ── Responsive ────────────────────────────────────────────────────────── */

@media (max-width: 1100px) {
  .opus-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 800px) {
  .opus-exp .hero-plate { height: 400px; }
  .opus-exp .hero-plate figcaption { max-width: none; left: 22px; }
  [data-ground="paper"] .opus-exp .hero-copy { background: var(--opus-paper); }
  [data-ground="paper"] .opus-exp .hero-plate::after { background: linear-gradient(0deg, rgba(245, 241, 234, .3), transparent 46%); }
  .opus-note { grid-template-columns: 1fr; padding-bottom: 130px; }
  .opus-spec li { grid-template-columns: 1fr; gap: 4px; }
  .opus-intro { grid-template-columns: 1fr; gap: 30px; }
  .opus-grid { grid-template-columns: 1fr; }
  .opus-dock { left: 12px; right: 12px; transform: none; justify-content: space-between; }
  .opus-dock > * { padding: 11px 10px; }
  .opus-dock .opus-dock-label { display: none; }
  .opus-tip { width: 200px; }
}
@media (max-width: 380px) {
  .opus-dock .opus-dock-index { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .opus-card, .opus-tip { transition: none; }
  .opus-card:hover { transform: none; }
}