:root{--bg: #0f172a;--bg-2: #1e293b;--panel: #0b1220;--text: #e2e8f0;--muted: #94a3b8;--accent: #38bdf8;--accent-2: #0ea5e9;--danger: #f87171;--radius: 14px}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;min-height:100dvh;padding-bottom:env(safe-area-inset-bottom)}.app-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:8px;padding:calc(10px + env(safe-area-inset-top)) 14px 10px;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(8px)}.app-header h1{font-size:1.15rem;margin:0}.badge{font-size:.6rem;letter-spacing:.1em;padding:2px 8px;border:1px solid var(--accent);color:var(--accent);border-radius:999px}main{max-width:640px;margin:0 auto;padding:0 12px 24px}.stage{display:none}.stage.active{display:block}.viewport{position:relative;width:100%;aspect-ratio:3 / 4;max-height:68vh;border-radius:var(--radius);overflow:hidden;background:#000}.viewport video,.viewport canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;display:block}.result-viewport{aspect-ratio:auto;height:auto;background:var(--panel);display:flex;align-items:center;justify-content:center;padding:8px}.result-viewport canvas{position:static;width:auto;height:auto;max-width:100%;max-height:60vh;border-radius:6px}.detect-viewport{background:var(--panel)}.detect-stage{position:absolute;inset:0}.detect-stage canvas,.detect-stage .overlay{position:absolute;display:block}.quad{fill:#38bdf82e;stroke:var(--accent);stroke-width:2;stroke-linejoin:round}.handle{fill:#0f172a99;stroke:#fff;stroke-width:2;cursor:grab}.guide{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;pointer-events:none}.guide-frame{width:82%;height:60%;border:2px dashed rgba(255,255,255,.55);border-radius:8px}.hint{margin-top:10px;font-size:.82rem;color:#fff;text-align:center;background:#00000073;padding:6px 12px;border-radius:999px}.viewport .hint{position:absolute;bottom:12px;left:50%;transform:translate(-50%);white-space:nowrap}.detect-hint-wrap{position:absolute;bottom:12px;left:0;right:0;text-align:center}#camera-launch{position:absolute;inset:0;z-index:6;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:16px;background:radial-gradient(circle at 50% 40%,#1e293be6,#020617f5)}#camera-launch .hint{white-space:normal;font-size:.8rem;line-height:1.45;background:#0f172abf;max-width:320px}#camera-launch.hidden{display:none}.hidden-input{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden;pointer-events:none}.launch-btn{width:min(80%,260px);font-size:1.1rem}.launch-alt{font-size:.85rem;padding:10px 14px;min-height:0;width:min(80%,260px)}.error{position:absolute;top:10px;left:10px;right:10px;font-size:.82rem;color:#fecaca;background:#7f1d1dd9;padding:8px 10px;border-radius:8px;text-align:center;z-index:5}.hidden{display:none!important}.controls{display:flex;gap:10px;margin-top:14px}.controls.split{justify-content:space-between}.controls .btn{flex:1}.btn{appearance:none;border:none;border-radius:12px;padding:14px 16px;font-size:1rem;font-weight:600;color:var(--text);background:var(--bg-2);cursor:pointer;min-height:48px;transition:transform .06s ease}.btn:active{transform:scale(.97)}.btn.active{box-shadow:inset 0 0 0 2px var(--accent);color:var(--accent)}.btn.icon.on{color:var(--accent)}.btn.primary{background:var(--accent-2);color:#04222e}.btn.ghost{background:transparent;border:1px solid #334155}.btn.small{padding:8px 12px;min-height:36px;font-size:.9rem;flex:0 0 auto}.btn.icon{flex:0 0 auto;width:52px;font-size:1.3rem;padding:10px}.btn.shutter{flex:1;min-width:0;height:64px;border-radius:999px;border:4px solid #fff;background:radial-gradient(circle at 35% 30%,#7dd3fc,var(--accent-2))}.form{border:1px solid #334155;border-radius:var(--radius);padding:12px;margin:14px 0;background:var(--panel)}.form legend{font-size:.78rem;color:var(--muted);padding:0 6px;letter-spacing:.05em}.row{display:flex;align-items:center;gap:8px;margin-top:8px}.row>*{min-width:0}select,input[type=number],input[type=text]{flex:1;display:block;width:100%;padding:10px;border-radius:10px;border:1px solid #334155;background:var(--bg-2);color:var(--text);font-size:1rem;min-height:44px}input[type=range]{flex:2;accent-color:var(--accent)}.times{color:var(--muted)}.cell{flex:0 0 auto;font-size:.85rem}.gallery-head{display:flex;align-items:center;justify-content:space-between;margin-top:26px}.gallery-head h2{font-size:1.05rem;margin:0}#gallery-list{list-style:none;margin:12px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}#gallery-list li{background:var(--panel);border:1px solid #334155;border-radius:var(--radius);overflow:hidden}#gallery-list .thumb{width:100%;aspect-ratio:3 / 4;object-fit:cover;display:block;background:#000}#gallery-list .meta{padding:8px 10px;font-size:.72rem;color:var(--muted);word-break:break-all}#gallery-list .actions{display:flex;gap:8px;padding:0 8px 10px}#gallery-list .actions .btn{padding:8px;font-size:.8rem;min-height:0}.empty{color:var(--muted);font-size:.9rem}.status{text-align:center;font-size:.9rem;margin-top:12px;color:var(--accent)}.status.error{color:var(--danger)}.app-footer{text-align:center;color:var(--muted);font-size:.75rem;padding:18px 0 26px}.spinner{margin-top:14px;display:flex;align-items:center;justify-content:center;gap:10px;color:var(--muted)}.ring{width:18px;height:18px;border:3px solid #334155;border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(min-width:700px){body{background:radial-gradient(1200px 800px at 50% -200px,#1e293b,var(--bg))}}