:root{--bg: #050608;--fg: #f4f6f8;--muted: #94a0b0;--accent: #6ad6ff;--accent-dim: rgba(106, 214, 255, .4);--warn: #ffb84a;--err: #ff6b6b}*{box-sizing:border-box}[hidden]{display:none!important}html,body{margin:0;padding:0;width:100%;height:100%;background:var(--bg);color:var(--fg);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow:hidden;user-select:none;-webkit-tap-highlight-color:transparent}#stage{position:fixed;inset:0;display:grid;place-items:center;background:var(--bg)}#ar-canvas{width:100%;height:100%;max-width:100vw;max-height:100vh;object-fit:contain;background:#000;display:block}#ui-container{position:absolute;inset:0;pointer-events:none}.ui-overlay{position:relative;width:100%;height:100%;display:flex;flex-direction:column;justify-content:space-between}.ui-overlay>*{pointer-events:auto}.ui-header{padding:18px 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ui-processing-spin{to{transform:rotate(360deg)}}.ui-processing-text{font-size:15px;font-weight:600;color:var(--fg);letter-spacing:.3px}.ui-processing-pct{font-size:28px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}.ui-record-btn:disabled{opacity:.4;pointer-events:none}.ui-format-modal{position:absolute;inset:0;z-index:60;display:grid;place-items:center;background:#050608d1;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}.ui-format-card{display:flex;flex-direction:column;align-items:stretch;gap:12px;padding:28px 32px;border-radius:18px;background:#0000008c;border:1px solid rgba(255,255,255,.1);min-width:240px}.ui-format-title{font-size:15px;font-weight:700;color:var(--fg);letter-spacing:.3px;text-align:center;margin-bottom:4px}.ui-format-btn{display:flex;flex-direction:column;align-items:center;gap:2px;padding:12px 18px;border-radius:12px;border:1px solid rgba(255,255,255,.12);background:#ffffff0f;cursor:pointer;transition:background .15s 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