:root{--bg: #0c0f14;--panel: #141923;--panel2: #1b2230;--line: #283244;--text: #e7ecf3;--muted: #8a97aa;--accent: #3b82f6;--green: #22c55e;--amber: #f59e0b;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#0c0f14d9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:5}.brand{font-weight:650;font-size:16px}.tag{color:var(--muted);font-weight:400;font-size:12px;margin-left:8px}.switch{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);cursor:pointer;-webkit-user-select:none;user-select:none}.switch input{width:38px;height:22px;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--line);border-radius:999px;position:relative;cursor:pointer;transition:background .2s;flex:none}.switch input:after{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:#fff;transition:transform .2s}.switch input:checked{background:var(--accent)}.switch input:checked:after{transform:translate(16px)}main{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:20px;padding:20px;max-width:1180px;margin:0 auto}@media (max-width: 820px){main{grid-template-columns:1fr}}.stage{display:flex;flex-direction:column;gap:14px}.viewport{position:relative;aspect-ratio:4/3;background:#000;border-radius:16px;overflow:hidden;border:1px solid var(--line)}#video{width:100%;height:100%;object-fit:cover;display:block;background:#000}.guide{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}.guide .frame{position:absolute;left:6%;top:30%;width:88%;height:42%;border:2px solid rgba(255,255,255,.6);border-radius:10px;box-shadow:0 0 0 100vmax #00000059}.guide .band{position:absolute;left:8%;top:55%;width:84%;height:14%;border:2px dashed var(--accent);border-radius:6px}.gate{position:absolute;left:50%;bottom:14px;transform:translate(-50%);background:#0009;color:#fff;padding:6px 14px;border-radius:999px;font-size:13px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:background .2s;white-space:nowrap}.gate.green{background:#22c55ed9}body:not(.scanning) .gate{display:none}.done-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:none;flex-direction:column;gap:10px;align-items:center;justify-content:center;text-align:center;background:#0a0e14eb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:20px}body.done .done-overlay{display:flex}.done-overlay .check{width:72px;height:72px;border-radius:50%;background:var(--green);color:#fff;font-size:40px;display:grid;place-items:center;animation:pop .4s cubic-bezier(.2,1.4,.4,1)}.done-title{font-size:20px;font-weight:650}.done-overlay code{font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:12.5px;letter-spacing:.5px;color:var(--green);word-break:break-all;max-width:92%}@keyframes pop{0%{transform:scale(0)}}.controls{display:flex;flex-wrap:wrap;gap:10px}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);background:var(--panel2);color:var(--text);padding:10px 16px;border-radius:10px;font-size:14px;cursor:pointer;transition:all .15s;font-weight:550}.btn:hover:not(.disabled):not(:disabled){border-color:var(--accent)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn:disabled,.btn.disabled{opacity:.45;cursor:not-allowed}.status{color:var(--muted);font-size:14px;min-height:20px}.status.err{color:#f87171}.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:18px}.panel h2{margin:0 0 14px;font-size:15px;font-weight:650}.panel h2 small{color:var(--muted);font-weight:400;margin-left:8px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:12px 14px;position:relative;overflow:hidden;transition:border-color .25s,background .25s}.field.hidden{display:none}.field .flabel{font-size:12px;color:var(--muted);margin-bottom:6px}.field .fval{font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:17px;font-weight:600;letter-spacing:.5px;color:var(--muted);transition:color .25s;min-height:22px}.field.has .fval{color:var(--text)}.field.locked{border-color:var(--green);background:linear-gradient(180deg,rgba(34,197,94,.1),var(--panel2))}.field.locked .fval{color:var(--green)}.field.locked:after{content:"✓";position:absolute;top:10px;right:12px;color:var(--green);font-weight:700;animation:pop .35s cubic-bezier(.2,1.4,.4,1)}.field .fbar{position:absolute;left:0;bottom:0;height:3px;width:100%;background:transparent}.field .fbar i{display:block;height:100%;width:0;background:var(--accent);transition:width .3s}.field.locked .fbar i{background:var(--green)}.hud{margin:14px 0 0;padding:10px 12px;background:#0a0d12;border:1px solid var(--line);border-radius:8px;color:var(--muted);font-family:ui-monospace,monospace;font-size:11.5px;white-space:pre-wrap;word-break:break-all;min-height:18px}