:root{
  --ink:#0F1F33; --cream:#F4F8FB; --paper:#ffffff; --gold:#0a7f99; --gold-light:#48CAE4; --muted:#4D6075; --line:#DCE5EE;
  --serif:"DM Serif Display",Georgia,serif; --sans:"Hanken Grotesk",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{background:#0b1726;color:var(--ink);font:15px/1.45 var(--sans);-webkit-font-smoothing:antialiased}
.app{max-width:520px;margin:0 auto;min-height:100%;display:flex;flex-direction:column;background:var(--cream)}

/* Bandeau de démonstration (toujours visible) */
.demo-flag{background:#08121f;color:#d7e6f2;text-align:center;font-size:12px;font-weight:600;line-height:1.4;padding:6px 12px;padding-top:max(6px,env(safe-area-inset-top))}
.demo-flag a{color:#48CAE4;font-weight:700;text-decoration:underline;text-underline-offset:2px}
.demo-flag span{display:block;font-weight:500;color:#a9bfd3;font-size:11.5px}

/* En-tête */
.bar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--ink);color:var(--cream)}
.wm{font-family:var(--serif);font-size:22px;font-weight:400;letter-spacing:.12em;text-transform:uppercase;line-height:1}
.wm small{display:block;font-family:var(--sans);font-size:9.5px;letter-spacing:.34em;color:var(--gold-light);margin-top:3px}
.badge{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#cfe0ee;border:1px solid rgba(255,255,255,.18);padding:4px 9px;border-radius:999px}

/* Scène caméra */
.stage{position:relative;aspect-ratio:3/4;background:#13263d;overflow:hidden}
.stage video{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.stage canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:22px;
  background:radial-gradient(120% 80% at 50% 20%,rgba(0,180,216,.22),transparent 60%),linear-gradient(180deg,#1E3A5F,#0F1F33);color:var(--cream);text-align:center}
.overlay[hidden]{display:none}
.intro-box{max-width:340px}
.kicker{font-size:11.5px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-light);margin:0 0 8px}
.intro-box h1{font-family:var(--serif);font-weight:400;font-size:34px;line-height:1.08;margin:0 0 10px}
.lead{color:#d5e3ef;margin:0 0 20px}
.privacy{font-size:12.5px;color:#a9bfd3;margin:14px 0 0}
.hint,.status{position:absolute;left:50%;transform:translateX(-50%);margin:0;padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;white-space:nowrap;max-width:92%;overflow:hidden;text-overflow:ellipsis}
.hint{bottom:14px;background:rgba(0,0,0,.55);color:#fff}
.status{top:14px;background:rgba(255,253,249,.92);color:var(--ink)}
.hint[hidden],.status[hidden]{display:none}

/* Boutons */
.btn{display:block;width:100%;border:0;border-radius:4px;padding:14px 16px;font:700 14px var(--sans);letter-spacing:.08em;text-transform:uppercase;cursor:pointer;text-align:center;margin-top:10px}
.btn.primary{background:var(--gold);color:#fff}
.btn.ghost{background:transparent;color:inherit;border:1px solid rgba(255,255,255,.35)}
.btn.small{display:inline-block;width:auto;margin:0;padding:10px 14px;font-size:12px;background:var(--ink);color:var(--cream)}
.btn.small.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
button:focus-visible,label:focus-visible,.thumb:focus-visible{outline:3px solid var(--gold);outline-offset:2px}

/* Panneau du bas */
.panel{padding:14px 16px 20px;padding-bottom:max(20px,env(safe-area-inset-bottom));background:var(--paper);flex:1}
.current{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.current b{display:block;font-family:var(--serif);font-size:24px;font-weight:400;line-height:1.1}
.current span{font-size:13px;color:var(--muted)}
.carousel{display:flex;gap:10px;overflow-x:auto;padding:4px 2px 10px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.thumb{flex:none;width:92px;scroll-snap-align:start;border:1.5px solid var(--line);border-radius:10px;background:#fff;padding:8px 6px 6px;cursor:pointer;text-align:center;font:600 11.5px var(--sans);color:var(--ink)}
.thumb img{display:block;width:100%;height:34px;object-fit:contain;margin-bottom:5px}
.thumb.on{border-color:var(--ink);box-shadow:0 0 0 1.5px var(--ink) inset}
.actions{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:6px}
.act{display:flex;flex-direction:column;align-items:center;gap:4px;border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 4px;font:600 11.5px var(--sans);color:var(--ink);cursor:pointer}
.act svg{width:20px;height:20px;fill:none;stroke:var(--ink);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.act:disabled{opacity:.4;cursor:not-allowed}
.act[aria-expanded="true"]{border-color:var(--ink)}
.tune{display:grid;gap:10px;margin-top:12px;padding:12px;border:1px solid var(--line);border-radius:10px;background:#fff}
.tune[hidden]{display:none}
.tune label{display:grid;grid-template-columns:70px 1fr;align-items:center;font-size:13px;font-weight:600}
.tune input{width:100%;accent-color:var(--ink)}
.foot{font-size:11.5px;color:var(--muted);margin:14px 0 0}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:var(--cream);padding:10px 16px;border-radius:999px;font-size:13.5px;font-weight:600;opacity:0;transition:.25s;pointer-events:none;max-width:90%;text-align:center}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}

@media (min-width:560px){
  body{padding:24px 0}
  .app{border-radius:18px;overflow:hidden;min-height:0;box-shadow:0 20px 60px rgba(0,0,0,.4)}
}

/* Champs fichier : masqués visuellement mais toujours actifs (iOS ignore parfois un champ display:none) */
.file-in{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden;clip:rect(0 0 0 0)}