:root{--bg:#f8fafc;--fg:#0f172a;--muted:#64748b;--card:#fff;--line:#e2e8f0;--brand:#0f766e;--ok:#15803d;--warn:#b45309;--err:#b91c1c}@media (prefers-color-scheme:dark){:root{--bg:#0b1220;--fg:#e2e8f0;--muted:#94a3b8;--card:#111a2e;--line:#22304a;--brand:#2dd4bf}}*{box-sizing:border-box}body{background:var(--bg);color:var(--fg);padding-bottom:env(safe-area-inset-bottom);margin:0;font:16px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}header{border-bottom:1px solid var(--line);background:var(--card);align-items:center;gap:8px;padding:12px 16px;display:flex;position:sticky;top:0}h1{flex:1;margin:0;font-size:18px}h1 small{color:var(--muted);margin-left:6px;font-weight:400}.badge{border:1px solid;border-radius:99px;padding:3px 8px;font-size:12px}.badge.ok{color:var(--ok)}.badge.warn{color:var(--warn)}.badge.err{color:var(--err)}main{gap:16px;max-width:720px;margin:0 auto;padding:16px;display:grid}.scan{grid-template-columns:1fr auto;gap:8px;display:grid}.scan video{object-fit:cover;background:#000;border-radius:12px;grid-column:1/-1;width:100%;max-height:240px}input{border:2px solid var(--brand);background:var(--card);color:var(--fg);border-radius:12px;min-width:0;padding:14px;font-size:20px}button{font:inherit;border:1px solid var(--line);background:var(--card);color:var(--fg);cursor:pointer;border-radius:12px;min-height:44px;padding:12px 16px}button.primary{background:var(--brand);color:#fff;border-color:var(--brand)}button.ghost{color:var(--muted)}button:disabled{opacity:.5;cursor:not-allowed}.cart{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:8px 16px 16px}ul{margin:0;padding:0;list-style:none}li{border-bottom:1px solid var(--line);grid-template-columns:1fr auto auto;align-items:center;gap:12px;padding:12px 0;display:grid}li small{color:var(--muted);display:block}li.empty{color:var(--muted);text-align:center;border:0;padding:32px 0;display:block}.qty{align-items:center;gap:8px;display:flex}.qty button{min-height:36px;padding:4px 12px}.qty span{text-align:center;min-width:24px}.total{justify-content:space-between;padding:16px 0;font-size:20px;display:flex}.actions{grid-template-columns:auto 1fr 1fr;gap:8px;display:grid}#toast{background:var(--fg);color:var(--bg);opacity:0;pointer-events:none;border-radius:99px;max-width:90vw;padding:10px 16px;transition:all .2s;position:fixed;bottom:24px;left:50%;transform:translate(-50%,20px)}#toast.show{opacity:1;transform:translate(-50%)}#toast.bad{background:var(--err);color:#fff}button.badge{cursor:pointer;background:0 0;min-height:0}dialog{border:1px solid var(--line);background:var(--card);width:min(560px,94vw);color:var(--fg);border-radius:16px;padding:0 16px 16px}dialog::backdrop{background:#0f172a80}.dlg-head{justify-content:space-between;align-items:center;display:flex}.dlg-head h2{margin:16px 0 8px;font-size:18px}.dlg-head button{min-height:36px;padding:4px 12px}.hint{color:var(--muted);margin:0 0 8px;font-size:14px}#queue-list li{grid-template-columns:1fr auto}#queue-list .err{color:var(--err);font-size:14px}#queue-list .warn{color:var(--warn);font-size:14px}#queue-list .row-actions{gap:8px;display:flex}#queue-list .row-actions button{min-height:36px;padding:6px 12px}.activate{gap:10px;padding:4px 0 8px;display:grid}.activate h2{margin:16px 0 0;font-size:18px}.activate .err{color:var(--err);min-height:1em}