:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0b0c0f;--panel:#12141ad1;--line:#ffffff1f;--text:#f4f4f1;--muted:#9aa0ab;--accent:#7eb6ff;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;color:var(--text);touch-action:none;-webkit-user-select:none;user-select:none;margin:0;overflow:hidden}#viewport{position:fixed;inset:0}#viewport canvas{width:100%;height:100%;display:block}#hud{left:12px;right:12px;bottom:max(12px, env(safe-area-inset-bottom));z-index:2;border:1px solid var(--line);background:var(--panel);-webkit-backdrop-filter:blur(16px);border-radius:16px;gap:10px;padding:12px;display:grid;position:fixed}header{justify-content:space-between;align-items:baseline;gap:8px;display:flex}header strong{letter-spacing:.02em}#status{color:var(--muted);font-size:12px}.row{flex-wrap:wrap;gap:8px;display:flex}button,.file-btn{appearance:none;border:1px solid var(--line);color:var(--text);font:inherit;cursor:pointer;background:#ffffff0f;border-radius:999px;padding:10px 14px;font-size:14px}button.primary{background:var(--accent);color:#0b0c0f;border-color:#0000;font-weight:600}button:disabled{opacity:.5;cursor:not-allowed}.file-btn:has(input:disabled){opacity:.5;cursor:not-allowed}.slider-row{color:var(--muted);grid-template-columns:auto 1fr auto;align-items:center;gap:10px;font-size:13px;display:grid}input[type=range]{width:100%;accent-color:var(--accent)}.check{color:var(--muted);align-items:center;gap:8px;font-size:13px;display:flex}details summary{cursor:pointer;color:var(--muted);font-size:13px}details[open] summary{margin-bottom:8px}.orient-notice{color:#d7e8ff;background:#7eb6ff1f;border:1px solid #7eb6ff59;border-radius:10px;margin:0;padding:8px 10px;font-size:12.5px;font-weight:500;line-height:1.35}.hint{color:var(--muted);margin:0;font-size:12px;line-height:1.4}@media (width>=720px){#hud{width:min(380px,100vw - 24px);bottom:16px;left:auto;right:16px}}#sensitivity-label{font-variant-numeric:tabular-nums;text-align:right;min-width:2.6em;color:var(--text);font-weight:600}html.is-fullscreen #hud{opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;transform:translateY(12px)}html.is-fullscreen #hud.hud-visible{opacity:1;pointer-events:auto;transform:none}html.is-fullscreen #hud-peek{display:flex}#hud-peek{top:max(10px, env(safe-area-inset-top));right:max(10px, env(safe-area-inset-right));z-index:3;gap:8px;display:none;position:fixed}#hud-peek button{appearance:none;border:1px solid var(--line);background:var(--panel);color:var(--text);font:inherit;-webkit-backdrop-filter:blur(12px);border-radius:999px;padding:8px 12px;font-size:13px}#landing-actions.landing-start{gap:8px;display:grid}#landing-actions[hidden]{display:none!important}.start-btn{letter-spacing:.02em;border-radius:14px;width:100%;padding:16px 18px;font-size:18px;font-weight:700}#landing-actions .file-btn{justify-self:start}