/* app.css — interface de l'exposition virtuelle : blanc / gris éthéré, glassmorphisme, charte 100% IDT */
:root {
  --bg: #f3f4f6;
  --ink: #1b2430;
  --muted: #5b6672;
  --navy: #00345f;
  --violet: #af2676;
  --cyan: #14b2de;
  --pink: #df81ad;
  --glass: rgba(255, 255, 255, 0.52);
  --glass-strong: rgba(255, 255, 255, 0.74);
  --stroke: rgba(255, 255, 255, 0.85);
  --stroke-soft: rgba(27, 36, 48, 0.08);
  --shadow: 0 18px 50px rgba(20, 40, 70, 0.14), 0 2px 6px rgba(20, 40, 70, 0.06);
  --blur: 22px;
  --radius: 22px;
  --font-title: 'Montserrat', Arial, sans-serif;
  --font-body: 'Calibri', 'Carlito', 'Montserrat', system-ui, sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 420ms;
  --text-scale: 1;
}
:root[data-theme="dark"], :root:not([data-theme="light"]) .never { color: inherit; }
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--ink); font-family: var(--font-body); font-size: calc(15px * var(--text-scale)); overflow: hidden; }
body { -webkit-font-smoothing: antialiased; }
canvas { display: block; }
#stage { position: fixed; inset: 0; }
#stage canvas { position: absolute; inset: 0; }
#labels { position: fixed; inset: 0; pointer-events: none; z-index: 2; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; padding: 0; -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, input:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--violet); outline-offset: 3px; border-radius: 12px; }
h1, h2, h3, h4 { font-family: var(--font-title); letter-spacing: -0.01em; margin: 0; color: var(--navy); }
p { margin: 0.4em 0; line-height: 1.55; }
a { color: var(--violet); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- verre ---------- */
.glass { background: var(--glass); backdrop-filter: blur(var(--blur)) saturate(140%); -webkit-backdrop-filter: blur(var(--blur)) saturate(140%); border: 1px solid var(--stroke); box-shadow: var(--shadow); border-radius: var(--radius); position: relative; }
.glass::before { content: ''; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; background: linear-gradient(135deg, rgba(255,255,255,0.55), rgba(255,255,255,0) 45%, rgba(255,255,255,0.18)); }
.glass > * { position: relative; }
.glass-strong { background: var(--glass-strong); }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; border-radius: 999px; font-family: var(--font-title); font-weight: 600; font-size: 0.72rem; letter-spacing: 0.04em; text-transform: uppercase; background: rgba(255,255,255,0.6); border: 1px solid var(--stroke); color: var(--navy); }
.chip .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); }
.chip[data-p="engagement"] .dot { background: var(--cyan); }
.chip[data-p="representation"] .dot { background: var(--violet); }
.chip[data-p="action"] .dot { background: var(--pink); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 16px; border-radius: 999px; font-family: var(--font-title); font-weight: 600; font-size: 0.82rem; background: rgba(255,255,255,0.65); border: 1px solid var(--stroke); box-shadow: 0 4px 14px rgba(20,40,70,0.08); transition: transform 180ms var(--ease-out), background 180ms, box-shadow 180ms; white-space: nowrap; }
.btn:hover { background: #fff; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(20,40,70,0.12); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn.primary { background: var(--navy); color: #fff; border-color: var(--navy); }
.btn.primary:hover { background: #0a4a80; }
.btn.accent { background: var(--violet); color: #fff; border-color: var(--violet); }
.btn.ghost { background: transparent; box-shadow: none; }
.btn.icon { width: 40px; height: 40px; padding: 0; border-radius: 50%; }
.btn[aria-pressed="true"] { background: var(--navy); color: #fff; border-color: var(--navy); }
.btn svg { width: 18px; height: 18px; }

/* ---------- barre haute ---------- */
#topbar { position: fixed; top: 16px; left: 16px; right: 16px; z-index: 5; display: flex; align-items: center; gap: 12px; padding: 8px 14px; border-radius: 999px; }
#topbar .brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; }
#topbar .brand img { height: 34px; width: auto; display: block; }
#topbar .brand .t { display: flex; flex-direction: column; line-height: 1.05; }
#topbar .brand .t b { font-family: var(--font-title); font-size: 0.86rem; color: var(--navy); }
#topbar .brand .t small { font-size: 0.7rem; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; }
#topbar .sep { width: 1px; height: 28px; background: var(--stroke-soft); }
#topbar .expo-now { display: flex; align-items: center; gap: 8px; min-width: 0; }
#topbar .expo-now .chip { max-width: 34vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: block; }
#topbar .spacer { flex: 1; }
#topbar .actions { display: flex; gap: 6px; }
#topbar .actions .btn { padding: 8px 13px; font-size: 0.78rem; }

/* ---------- navigation sur rails ---------- */
#rails { position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 5; display: flex; gap: 4px; padding: 6px; border-radius: 999px; max-width: calc(100vw - 32px); overflow-x: auto; scrollbar-width: none; }
#rails button { padding: 10px 14px; border-radius: 999px; font-family: var(--font-title); font-weight: 600; font-size: 0.78rem; color: var(--navy); white-space: nowrap; transition: background 160ms, color 160ms; }
#rails button:hover { background: rgba(255,255,255,0.8); }
#rails button[aria-current="true"] { background: var(--navy); color: #fff; }
#rails .num { opacity: 0.55; font-weight: 500; margin-right: 6px; }

/* ---------- intro ---------- */
#intro { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center; background: radial-gradient(120% 90% at 50% 10%, rgba(255,255,255,0.9), rgba(243,244,246,0.75) 60%, rgba(233,236,240,0.9)); transition: opacity 700ms var(--ease-out), visibility 700ms; }
#intro[hidden] { display: grid; opacity: 0; visibility: hidden; pointer-events: none; }
#intro .card { width: min(680px, calc(100vw - 32px)); padding: 40px 44px; text-align: center; }
#intro .logos { display: flex; align-items: center; justify-content: center; gap: 28px; margin-bottom: 26px; }
#intro .logos img { height: 64px; width: auto; }
#intro .logos img.upjv { height: 74px; }
#intro .eyebrow { font-family: var(--font-title); font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--violet); font-weight: 700; }
#intro h1 { font-size: clamp(1.7rem, 4vw, 2.6rem); margin: 12px 0 6px; line-height: 1.1; }
#intro h1 span { color: var(--cyan); }
#intro .sub { font-family: var(--font-title); font-weight: 500; color: var(--muted); font-size: 1rem; }
#intro .lead { max-width: 520px; margin: 18px auto 24px; color: var(--ink); }
#intro .cta { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
#intro .tips { margin-top: 22px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; font-size: 0.8rem; color: var(--muted); }
#intro .tips span { display: inline-flex; align-items: center; gap: 6px; }
#intro .loading { margin-top: 14px; font-size: 0.78rem; color: var(--muted); font-family: var(--font-title); min-height: 1.2em; }
#intro .bar { height: 3px; border-radius: 3px; background: rgba(0,52,95,0.12); overflow: hidden; margin: 8px auto 0; width: 220px; }
#intro .bar i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--cyan), var(--violet)); transition: width 300ms; }

/* ---------- étiquette de survol (CSS2D) ---------- */
.hover-label { pointer-events: none; transform: translate(-50%, -130%); padding: 8px 12px; border-radius: 14px; background: rgba(255,255,255,0.72); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border: 1px solid var(--stroke); box-shadow: var(--shadow); font-family: var(--font-title); font-size: 0.78rem; font-weight: 600; color: var(--navy); white-space: nowrap; opacity: 0; transition: opacity 160ms; }
.hover-label.on { opacity: 1; }
.hover-label small { display: block; font-weight: 500; color: var(--muted); font-size: 0.68rem; letter-spacing: 0.06em; text-transform: uppercase; }
.hover-label.cat-isolement small { color: #0d8bb0; }

/* ---------- fiche objet (panneau droit) ---------- */
#sheet { position: fixed; top: 0; right: 0; bottom: 0; width: min(440px, calc(100vw - 32px)); border-radius: 0; border-top: 0; border-bottom: 0; border-right: 0; z-index: 6; display: flex; flex-direction: column; padding: 0; overflow: hidden; transform: translateX(24px); opacity: 0; visibility: hidden; transition: transform var(--dur) var(--ease-out), opacity var(--dur) var(--ease-out), visibility var(--dur); }
#sheet.open { transform: none; opacity: 1; visibility: visible; }
#sheet .head { display: flex; align-items: flex-start; gap: 10px; padding: 18px 18px 8px; }
#sheet .head h2 { font-size: 1.15rem; line-height: 1.2; flex: 1; }
#sheet .head .chips { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 6px; }
#sheet .close { flex: none; }
#sheet .media { position: relative; margin: 0 14px; border-radius: 16px; overflow: hidden; background: rgba(255,255,255,0.55); border: 1px solid var(--stroke); aspect-ratio: 4 / 3; }
#sheet .media img, #sheet .media canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
#sheet .media img { padding: 10px; }
#sheet .media .tabs { position: absolute; left: 10px; top: 10px; display: flex; gap: 4px; padding: 4px; border-radius: 999px; background: rgba(255,255,255,0.7); backdrop-filter: blur(10px); z-index: 2; }
#sheet .media .tabs button { padding: 6px 11px; border-radius: 999px; font-family: var(--font-title); font-size: 0.72rem; font-weight: 600; color: var(--navy); }
#sheet .media .tabs button[aria-selected="true"] { background: var(--navy); color: #fff; }
#sheet .media .hint { position: absolute; right: 10px; bottom: 8px; font-size: 0.68rem; color: var(--muted); background: rgba(255,255,255,0.7); padding: 3px 8px; border-radius: 999px; z-index: 2; }
#sheet .media[data-mode="photo"] canvas { visibility: hidden; }
#sheet .media[data-mode="3d"] img { visibility: hidden; }
#sheet .body { flex: 1; overflow: auto; padding: 12px 18px 18px; scrollbar-width: thin; }
#sheet .body h3 { font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--violet); margin: 14px 0 4px; }
#sheet .body h3:first-child { margin-top: 4px; }
#sheet .body p { font-size: 0.93rem; }
#sheet .meta { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 12px; font-size: 0.82rem; color: var(--muted); margin-top: 10px; }
#sheet .meta b { color: var(--ink); font-weight: 600; }
#sheet .needs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
#sheet .needs span { font-size: 0.74rem; padding: 4px 9px; border-radius: 999px; background: rgba(0,52,95,0.06); border: 1px solid var(--stroke-soft); }
#sheet .cua-box { margin-top: 12px; padding: 12px 14px; border-radius: 14px; background: rgba(255,255,255,0.55); border-left: 4px solid var(--cyan); }
#sheet .cua-box[data-p="representation"] { border-left-color: var(--violet); }
#sheet .cua-box[data-p="action"] { border-left-color: var(--pink); }
#sheet .cua-box b { font-family: var(--font-title); color: var(--navy); }
#sheet .controls { margin-top: 12px; padding: 12px 14px; border-radius: 14px; background: rgba(255,255,255,0.5); border: 1px solid var(--stroke); }
#sheet .controls label { display: flex; justify-content: space-between; font-size: 0.8rem; font-family: var(--font-title); font-weight: 600; color: var(--navy); }
#sheet .controls input[type="range"] { width: 100%; accent-color: var(--violet); margin: 8px 0; }
#sheet .controls .row { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 6px; }
#sheet .controls .row .btn { padding: 7px 12px; font-size: 0.74rem; }
#sheet .controls .bubbles { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-top: 8px; }
#sheet .controls .bubbles button { aspect-ratio: 1; border-radius: 50%; background: var(--c, #ccc); border: 2px solid #fff; box-shadow: 0 2px 0 rgba(0,0,0,0.15); }
#sheet .controls .bubbles button[aria-pressed="true"] { box-shadow: inset 0 3px 6px rgba(0,0,0,0.45); transform: scale(0.88); }
#sheet .foot { display: flex; gap: 8px; padding: 10px 18px 16px; flex-wrap: wrap; }
#sheet .sources { font-size: 0.72rem; color: var(--muted); margin-top: 10px; word-break: break-all; }
#sheet .ecriteau { font-size: 0.86rem; font-style: italic; color: var(--muted); }

/* ---------- modales (programme, livret, CUA, parcours, accessibilité) ---------- */
dialog.modal { border: 0; padding: 0; background: transparent; max-width: none; max-height: none; width: 100vw; height: 100dvh; margin: 0; }
dialog.modal::backdrop { background: rgba(236, 239, 243, 0.55); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
dialog.modal .panel { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: min(980px, calc(100vw - 32px)); max-height: calc(100dvh - 48px); display: flex; flex-direction: column; overflow: hidden; }
dialog.modal[open] .panel { animation: pop-in 480ms var(--ease-out); }
@keyframes pop-in { from { opacity: 0; transform: translate(-50%, -46%) scale(0.96); filter: blur(6px); } to { opacity: 1; transform: translate(-50%, -50%) scale(1); filter: blur(0); } }
.panel .ph { display: flex; align-items: center; gap: 12px; padding: 18px 22px 10px; }
.panel .ph h2 { font-size: 1.25rem; flex: 1; }
.panel .ph .eyebrow { font-family: var(--font-title); font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--violet); font-weight: 700; display: block; margin-bottom: 4px; }
.panel .pb { flex: 1; overflow: auto; padding: 8px 22px 22px; scrollbar-width: thin; }

/* programme des expositions */

/* CUA */
.cua-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.cua-card { padding: 16px; border-radius: 18px; background: rgba(255,255,255,0.55); border: 1px solid var(--stroke); border-top: 5px solid var(--c); }
.cua-card .num { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--c); color: #fff; font-family: var(--font-title); font-weight: 700; }
.cua-card h3 { font-size: 1.05rem; margin: 10px 0 2px; }
.cua-card .sub { font-family: var(--font-title); font-weight: 600; font-size: 0.78rem; color: var(--c); text-transform: uppercase; letter-spacing: 0.06em; }
.cua-card ul { padding-left: 18px; font-size: 0.86rem; margin: 8px 0; }
.cua-card .tag { font-style: italic; color: var(--navy); font-family: var(--font-title); font-weight: 600; font-size: 0.86rem; }
.cua-card .btn { margin-top: 10px; }
.quote { margin: 14px 0; padding: 12px 16px; border-left: 3px solid var(--violet); background: rgba(255,255,255,0.4); border-radius: 0 12px 12px 0; font-size: 0.92rem; }
.quote small { display: block; color: var(--muted); margin-top: 4px; font-size: 0.75rem; }
.filter-row { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0 14px; align-items: center; }

/* livret */
.book { display: grid; grid-template-columns: 1fr 1fr; gap: 0; background: #fffdf9; border-radius: 12px; box-shadow: 0 10px 30px rgba(20,40,70,0.12); min-height: 480px; overflow: hidden; position: relative; }
.book .page { padding: 28px 30px 40px; position: relative; min-height: 480px; background: linear-gradient(90deg, #fffdf9 92%, #efece5); }
.book .page + .page { background: linear-gradient(90deg, #eae7e0, #fffdf9 6%); border-left: 1px solid #e3dfd6; }
.book .page .kicker { font-family: var(--font-title); font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--violet); font-weight: 700; }
.book .page h3 { font-size: 1.35rem; margin: 10px 0 10px; line-height: 1.15; }
.book .page p { font-size: 0.88rem; }
.book .page ul, .book .page ol { padding-left: 18px; font-size: 0.84rem; }
.book .page .folio { position: absolute; bottom: 12px; font-size: 0.7rem; color: var(--muted); font-family: var(--font-title); }
.book .page:first-child .folio { left: 30px; }
.book .page + .page .folio { right: 30px; }
.book .cover { background: var(--navy); color: #fff; display: flex; flex-direction: column; justify-content: center; }
.book .cover h3 { color: #fff; font-size: 2rem; }
.book .cover .kicker { color: #9fdcf0; }
.book .cover .sub { font-family: var(--font-title); font-weight: 500; color: #cfe6f2; }
.book .cover .expo { margin-top: 18px; padding: 10px 14px; border-radius: 12px; background: rgba(255,255,255,0.12); font-family: var(--font-title); font-weight: 600; }
.book .cover img { height: 46px; width: auto; margin-top: 22px; background: #fff; padding: 6px 10px; border-radius: 8px; align-self: flex-start; }
.book .cover .folio { color: #9fb9cc; }
.book .obj-list { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 10px; margin: 6px 0 10px; }
.book .obj-list button { display: flex; align-items: center; gap: 8px; text-align: left; padding: 4px 6px; border-radius: 10px; font-size: 0.8rem; }
.book .obj-list button:hover { background: rgba(0,52,95,0.06); }
.book .obj-list img { width: 30px; height: 30px; object-fit: contain; border-radius: 6px; background: #fff; }
.book .cat-title { font-family: var(--font-title); font-weight: 700; font-size: 0.74rem; color: var(--c, var(--navy)); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 8px; }
.book .principles { display: grid; gap: 8px; margin-top: 8px; }
.book .principles div { padding: 8px 10px; border-radius: 10px; background: rgba(0,52,95,0.04); border-left: 4px solid var(--c); font-size: 0.82rem; }
.book .principles b { font-family: var(--font-title); color: var(--navy); }
.book .situation { padding: 8px 10px; border-radius: 10px; background: rgba(20,178,222,0.08); font-size: 0.82rem; margin: 6px 0; }
.book .situation b { color: var(--navy); }
.book .team div { font-size: 0.8rem; margin: 4px 0; }
.book .team b { font-family: var(--font-title); color: var(--navy); }
.book .partners { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 10px; }
.book .partners img { height: 28px; width: auto; background: #fff; padding: 3px 5px; border-radius: 6px; border: 1px solid #eee; }
.book .contact { font-size: 0.8rem; margin-top: 10px; }
.book-nav { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 12px; }
.book-nav .dots { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; }
.book-nav .dots button { width: 26px; height: 26px; border-radius: 50%; font-size: 0.7rem; font-family: var(--font-title); color: var(--muted); }
.book-nav .dots button[aria-current="true"] { background: var(--navy); color: #fff; }
.book.flip .page { animation: page-flip 520ms var(--ease-out); }
@keyframes page-flip { from { opacity: 0; transform: perspective(1200px) rotateY(-12deg); } to { opacity: 1; transform: none; } }

/* parcours (chasse aux trésors) */
#quest { position: fixed; left: 16px; bottom: 84px; z-index: 6; width: min(380px, calc(100vw - 32px)); padding: 16px 18px; transform: translateY(16px); opacity: 0; visibility: hidden; transition: transform var(--dur) var(--ease-out), opacity var(--dur), visibility var(--dur); }
#quest.open { transform: none; opacity: 1; visibility: visible; }
#quest .qh { display: flex; align-items: center; gap: 8px; }
#quest .qh h2 { font-size: 0.95rem; flex: 1; }
#quest .progress { display: flex; gap: 4px; margin: 8px 0; }
#quest .progress i { flex: 1; height: 5px; border-radius: 5px; background: rgba(0,52,95,0.12); }
#quest .progress i.done { background: var(--cyan); }
#quest .progress i.cur { background: var(--violet); }
#quest .prenom { font-family: var(--font-title); font-weight: 700; color: var(--violet); font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; }
#quest .text { font-size: 0.92rem; margin: 6px 0 8px; }
#quest .hint { font-size: 0.8rem; color: var(--muted); font-style: italic; min-height: 1.2em; }
#quest .feedback { font-family: var(--font-title); font-weight: 600; font-size: 0.86rem; margin-top: 6px; min-height: 1.3em; }
#quest .feedback.ok { color: #0d8a5f; }
#quest .feedback.ko { color: var(--violet); }
#quest .row { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
#quest .row .btn { padding: 7px 12px; font-size: 0.74rem; }
#quest.win .text { font-family: var(--font-title); font-weight: 600; color: var(--navy); }

/* accessibilité */
.a11y-list { display: grid; gap: 8px; }
.a11y-list label { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 14px; border-radius: 14px; background: rgba(255,255,255,0.55); border: 1px solid var(--stroke); font-size: 0.9rem; }
.a11y-list label small { display: block; color: var(--muted); font-size: 0.78rem; }
.a11y-list input { width: 22px; height: 22px; accent-color: var(--violet); }
.switch { position: relative; width: 44px; height: 26px; border-radius: 999px; background: rgba(0,52,95,0.18); transition: background 200ms; flex: none; }
.switch::after { content: ''; position: absolute; left: 3px; top: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,0.25); transition: transform 200ms var(--ease-out); }
input:checked + .switch { background: var(--violet); }
input:checked + .switch::after { transform: translateX(18px); }
.a11y-list input[type="checkbox"] { position: absolute; opacity: 0; width: 1px; height: 1px; }
.a11y-list label:has(input:focus-visible) { outline: 3px solid var(--violet); }

/* liste des objets (alternative accessible) */
.obj-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.obj-tile { text-align: left; padding: 10px; border-radius: 14px; background: rgba(255,255,255,0.55); border: 1px solid var(--stroke); transition: transform 180ms var(--ease-out), box-shadow 180ms; }
.obj-tile:hover { transform: translateY(-2px); box-shadow: var(--shadow); background: #fff; }
.obj-tile img { width: 100%; aspect-ratio: 1; object-fit: contain; border-radius: 10px; background: #fff; }
.obj-tile b { display: block; font-family: var(--font-title); font-size: 0.78rem; margin-top: 6px; color: var(--navy); line-height: 1.2; }
.obj-tile small { color: var(--muted); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em; }
.obj-tile .p { position: absolute; }

/* toast */
#toast { position: fixed; left: 50%; top: 84px; transform: translate(-50%, -12px); z-index: 30; padding: 10px 16px; border-radius: 999px; font-family: var(--font-title); font-weight: 600; font-size: 0.82rem; color: var(--navy); opacity: 0; visibility: hidden; transition: opacity 260ms, transform 260ms var(--ease-out), visibility 260ms; pointer-events: none; }
#toast.on { opacity: 1; transform: translate(-50%, 0); visibility: visible; }

/* coin : aide clavier */
#help { position: fixed; right: 16px; bottom: 18px; z-index: 5; font-size: 0.72rem; color: var(--muted); padding: 8px 12px; border-radius: 999px; }

/* ---------- accessibilité / préférences ---------- */
html.reduce-motion *, html.reduce-motion *::before, html.reduce-motion *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
@media (prefers-reduced-motion: reduce) { html:not(.allow-motion) *, html:not(.allow-motion) *::before, html:not(.allow-motion) *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; } }
html.high-contrast { --glass: rgba(255,255,255,0.94); --glass-strong: #fff; --muted: #2c3540; --stroke: #1b2430; --blur: 0px; }
html.high-contrast .glass::before { display: none; }
html.high-contrast .btn { border-color: #1b2430; }
html.large-text { --text-scale: 1.22; }
html.dyslexia body { font-family: 'Trebuchet MS', 'Verdana', var(--font-body); letter-spacing: 0.02em; word-spacing: 0.08em; line-height: 1.7; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  #topbar { flex-wrap: wrap; border-radius: 22px; }
  #topbar .expo-now .chip { max-width: 50vw; }
  #sheet { top: auto; bottom: 76px; right: 8px; left: 8px; width: auto; max-height: 62dvh; }
  #sheet .media { flex: none; height: 200px; aspect-ratio: auto; }
  #topbar .actions { flex-wrap: wrap; }
  #quest { left: 8px; bottom: 76px; width: calc(100vw - 16px); }
  .book { grid-template-columns: 1fr; }
  .book .page { min-height: 0; }
  #help { display: none; }
}
@media (max-width: 600px) {
  #topbar .brand .t small { display: none; }
  #topbar .actions .btn span { display: none; }
  #intro .card { padding: 26px 20px; }
  #intro .logos img { height: 44px; }
}

/* consigne d'interaction directe dans la salle */
#sheet .inscene { margin: 10px 0 4px; padding: 10px 12px; border-radius: 12px; background: linear-gradient(135deg, rgba(20,178,222,.14), rgba(175,38,118,.10)); border: 1px solid rgba(20,178,222,.35); }
#sheet .inscene b { display: block; font-size: .82rem; color: var(--navy, #00345f); margin-bottom: 2px; }
#sheet .inscene p { margin: 0; font-size: .86rem; }

/* textes de médiation (structure de la maquette scene-test) */
#sheet .guide-head { font-size: 1.05rem; margin: 4px 0 8px; color: var(--navy, #00345f); }
.object-guide { margin: 8px 0 12px; padding: 12px 14px; border-radius: 14px; background: rgba(255,255,255,0.55); border-left: 4px solid var(--cyan, #14b2de); }
.object-guide h4 { font-family: var(--font-title); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--violet, #af2676); margin: 12px 0 4px; }
.object-guide h4:first-child { margin-top: 0; }
.object-guide p { margin: 4px 0; font-size: 0.88rem; line-height: 1.55; }
.object-guide .guide-benefit { color: var(--navy, #00345f); font-weight: 600; }
.object-guide .guide-use { margin-top: 10px; padding-top: 8px; border-top: 1px solid var(--stroke-soft, rgba(0,0,0,0.08)); color: var(--muted); font-style: italic; }
.need-tags { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; padding: 0; margin: 0; }
.need-tags li { font-size: 0.74rem; padding: 4px 9px; border-radius: 999px; background: rgba(0,52,95,0.06); border: 1px solid var(--stroke-soft, rgba(0,0,0,0.08)); }
.book .page .object-guide { padding: 10px 12px; margin: 8px 0; }
.book .page .object-guide p { font-size: 0.8rem; line-height: 1.5; }
.book .page .need-tags li { font-size: 0.68rem; padding: 3px 7px; }
.book .page .book-photo { display: block; width: 100%; max-height: 150px; object-fit: contain; margin: 8px 0; background: #fff; border-radius: 10px; }
.book .page .book-activity { margin: 10px 0; padding: 10px 12px; border-radius: 12px; background: rgba(20,178,222,0.10); font-size: 0.84rem; }
.book .page .book-activity strong { font-family: var(--font-title); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--navy, #00345f); }
.book .page .book-activity p { margin: 4px 0 0; font-size: 0.84rem; }
.book .page .book-extra { color: var(--muted); font-size: 0.8rem; }
.book-nav .dots select { font: inherit; font-size: 0.78rem; padding: 4px 8px; border-radius: 8px; border: 1px solid var(--stroke-soft, rgba(0,0,0,0.12)); background: rgba(255,255,255,0.7); max-width: 260px; }
.book-nav .dots .progress { font-size: 0.74rem; color: var(--muted); margin-left: 8px; }

#sheet .meta.compact { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 0.78rem; color: var(--muted); margin-top: 14px; padding-top: 10px; border-top: 1px solid var(--stroke-soft, rgba(0,0,0,0.08)); }

/* accordéon de la fiche */
.object-guide .accordion { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.object-guide details.acc { border-radius: 10px; background: rgba(255,255,255,0.6); border: 1px solid var(--stroke-soft, rgba(0,0,0,0.08)); }
.object-guide details.acc summary { cursor: pointer; list-style: none; padding: 8px 12px; font-family: var(--font-title); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--violet, #af2676); display: flex; align-items: center; justify-content: space-between; }
.object-guide details.acc summary::-webkit-details-marker { display: none; }
.object-guide details.acc summary::after { content: '+'; font-size: 1rem; color: var(--muted); transition: transform .2s; }
.object-guide details.acc[open] summary::after { transform: rotate(45deg); }
.object-guide details.acc[open] summary { color: var(--navy, #00345f); }
.object-guide details.acc p { margin: 0; padding: 0 12px 10px; }

/* fiche ouverte : elle occupe toute la colonne droite, les barres se décalent */
:root { --sheet-w: min(440px, calc(100vw - 32px)); }
#topbar, #rails, #toast { transition: right var(--dur) var(--ease-out), left var(--dur) var(--ease-out), transform var(--dur) var(--ease-out), opacity 260ms, visibility 260ms; }
body.sheet-open #topbar { right: calc(var(--sheet-w) + 16px); }
body.sheet-open #rails { left: calc((100vw - var(--sheet-w)) / 2); max-width: calc(100vw - var(--sheet-w) - 32px); }
body.sheet-open #toast { left: calc((100vw - var(--sheet-w)) / 2); }
#sheet .head { padding-top: 22px; }
#sheet .head .chips:empty { display: none; }
@media (max-width: 720px) { body.sheet-open #topbar { right: 16px; } body.sheet-open #rails { left: 50%; max-width: calc(100vw - 32px); } body.sheet-open #toast { left: 50%; } #sheet { border-radius: 18px 18px 0 0; } }
#topbar .brand .t b, #topbar .brand .t small { white-space: nowrap; }
body.sheet-open #topbar .brand .t small { display: none; }
body.sheet-open #topbar .expo-now { min-width: 0; }

/* ---- programme : cartes des expositions + calendrier ---- */
#programme-body .lead { font-size: 0.95rem; max-width: 60ch; margin: 4px 0 16px; }
.expo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.expo-card { position: relative; text-align: left; padding: 0 0 14px; border-radius: 20px; overflow: hidden; background: rgba(255,255,255,0.7); border: 1px solid var(--stroke); display: flex; flex-direction: column; gap: 8px; transition: transform 220ms var(--ease-out), box-shadow 220ms; cursor: pointer; }
.expo-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); background: #fff; }
.expo-card[aria-pressed="true"] { box-shadow: 0 0 0 2px var(--accent), var(--shadow); }
.expo-card .band { display: flex; align-items: center; gap: 8px; padding: 12px 16px; color: #fff; background: linear-gradient(120deg, var(--accent), color-mix(in srgb, var(--accent) 55%, #fff)); }
.expo-card .short { font-family: var(--font-title); font-weight: 800; font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; flex: 1; }
.expo-card .now, .expo-card .cur { font-family: var(--font-title); font-size: 0.64rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 3px 8px; border-radius: 999px; background: rgba(255,255,255,0.9); color: var(--navy); }
.expo-card .cur { background: var(--navy); color: #fff; }
.expo-card h3 { font-size: 1.02rem; line-height: 1.2; padding: 4px 16px 0; }
.expo-card .periods { list-style: none; margin: 0; padding: 0 16px; display: grid; gap: 3px; font-size: 0.8rem; color: var(--muted); }
.expo-card .periods b { display: inline-block; width: 44px; color: var(--accent); font-family: var(--font-title); }
.expo-card .thumbs { display: flex; align-items: center; gap: 4px; padding: 6px 16px 0; }
.expo-card .thumbs img { width: 34px; height: 34px; object-fit: contain; border-radius: 9px; background: #fff; border: 1px solid var(--stroke-soft); }
.expo-card .thumbs .more { margin-left: auto; font-size: 0.74rem; font-family: var(--font-title); font-weight: 700; color: var(--navy); }
.gantt { margin-top: 22px; display: grid; gap: 6px; }
.gantt .row { display: grid; grid-template-columns: 74px 1fr; align-items: center; gap: 10px; }
.gantt .y { font-family: var(--font-title); font-weight: 700; font-size: 0.78rem; color: var(--navy); }
.gantt .track { position: relative; height: 34px; border-radius: 10px; background: rgba(255,255,255,0.55); border: 1px solid var(--stroke-soft); display: grid; grid-template-columns: repeat(12, 1fr); overflow: hidden; }
.gantt .track i { font-style: normal; font-size: 0.62rem; color: var(--muted); text-align: center; line-height: 34px; border-left: 1px dashed var(--stroke-soft); user-select: none; }
.gantt .track i:first-child { border-left: 0; }
.gantt .row.head .track { height: 20px; background: transparent; border: 0; }
.gantt .row.head .track i { line-height: 20px; font-weight: 700; }
.gantt .row:not(.head) .track i { color: transparent; }
.gantt .bar { position: absolute; top: 5px; bottom: 5px; border-radius: 8px; background: var(--accent); color: #fff; font-family: var(--font-title); font-size: 0.66rem; font-weight: 800; letter-spacing: 0.08em; display: flex; align-items: center; padding: 0 8px; white-space: nowrap; overflow: hidden; box-shadow: 0 2px 6px rgba(0,0,0,0.12); }
.gantt .track::after { content: ''; position: absolute; top: 0; bottom: 0; width: 2px; background: var(--violet); left: -10px; }
#programme-body .foot { margin-top: 12px; font-size: 0.8rem; color: var(--muted); }

/* proposition du mode performance */
#perf-offer { position: fixed; left: 50%; bottom: 84px; transform: translate(-50%, 16px); width: min(440px, calc(100vw - 32px)); padding: 14px 18px; border-radius: 18px; z-index: 31; opacity: 0; visibility: hidden; transition: opacity 300ms, transform 300ms var(--ease-out), visibility 300ms; }
#perf-offer.on { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
#perf-offer b { font-family: var(--font-title); color: var(--navy); }
#perf-offer .fps { margin-left: 8px; font-size: 0.74rem; color: var(--muted); }
#perf-offer p { margin: 6px 0 10px; font-size: 0.86rem; }
#perf-offer .row { display: flex; gap: 8px; }
body.sheet-open #perf-offer { left: calc((100vw - var(--sheet-w)) / 2); }

/* écran d'accueil : boutons en attente et message d'échec */
#intro .cta .btn[disabled] { opacity: 0.45; cursor: progress; pointer-events: none; }
#intro .loading { min-height: 1.3em; }
#intro .intro-error[hidden] { display: none; }
#intro .intro-error { margin-top: 14px; padding: 12px 14px; border-radius: 14px; background: rgba(208,74,74,0.10); border: 1px solid rgba(208,74,74,0.35); text-align: left; display: flex; flex-direction: column; gap: 4px; }
#intro .intro-error b { font-family: var(--font-title); color: #a3342f; font-size: 0.9rem; }
#intro .intro-error .why { font-size: 0.86rem; }
#intro .intro-error .detail { font-size: 0.78rem; color: var(--muted); }