*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}:root{--bg: #111318;--panel: #1d2027;--text: #e8eaf0;--sub: #9aa3b2;--accent: #4c8dff;--ok: #35c26e;--warn: #ffb02e;--err: #ff5c5c}html,body{height:100%;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Hiragino Sans,Noto Sans JP,sans-serif;overscroll-behavior:none}#app{min-height:100dvh;display:flex;flex-direction:column}.menu{padding:20px 16px;max-width:560px;margin:0 auto;width:100%}.menu h1{font-size:20px;margin-bottom:4px}.menu .note{color:var(--sub);font-size:12px;margin-bottom:16px;line-height:1.6}.menu-item{display:block;width:100%;text-align:left;background:var(--panel);color:var(--text);border:1px solid #2a2e38;border-radius:12px;padding:14px 16px;margin-bottom:10px;font-size:15px;cursor:pointer}.menu-item small{display:block;color:var(--sub);font-size:12px;margin-top:4px;line-height:1.5}.menu-item:active{background:#262b35}.scene{position:relative;flex:1;display:flex;flex-direction:column;min-height:100dvh}.stage{position:relative;flex:1;overflow:hidden;background:#000;display:flex;align-items:center;justify-content:center}.stage>video,.stage canvas.main-canvas{max-width:100%;max-height:100%}.stage .overlay-canvas{position:absolute;pointer-events:none}.topbar{position:absolute;top:0;left:0;right:0;display:flex;align-items:center;gap:8px;padding:10px 12px;padding-top:calc(10px + env(safe-area-inset-top));z-index:20;background:linear-gradient(rgba(0,0,0,.55),transparent)}.topbar .title{font-size:13px;font-weight:600;text-shadow:0 1px 3px rgba(0,0,0,.8)}.controls{position:absolute;bottom:0;left:0;right:0;z-index:20;padding:10px 12px;padding-bottom:calc(10px + env(safe-area-inset-bottom));display:flex;flex-wrap:wrap;gap:8px;align-items:center;background:linear-gradient(transparent,#000000a6)}button.btn{background:var(--panel);color:var(--text);border:1px solid #333947;border-radius:10px;padding:10px 14px;font-size:14px;min-height:44px;cursor:pointer}button.btn.primary{background:var(--accent);border-color:var(--accent);font-weight:700}button.btn.small{padding:6px 10px;min-height:36px;font-size:12px}button.btn:disabled{opacity:.45}.hud{position:absolute;top:52px;left:8px;right:8px;z-index:15;pointer-events:none;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.hud .stats{display:inline-block;background:#0000008c;border-radius:8px;padding:6px 8px;font-size:11px;line-height:1.6;white-space:pre-wrap}.hud .logs{margin-top:6px;background:#0000008c;border-radius:8px;padding:6px 8px;font-size:10px;line-height:1.5;color:#cdd4e0;max-width:100%;overflow:hidden}.hud .logs .err{color:var(--err)}.hud .logs .ok{color:var(--ok)}.share-bar{display:flex;gap:8px;align-items:center}.share-bar img.thumb{width:44px;height:44px;object-fit:cover;border-radius:8px;border:1px solid #333947;background:#000}.badge{display:inline-block;border-radius:6px;padding:2px 8px;font-size:11px;font-weight:700}.badge.on{background:var(--ok);color:#08110b}.badge.off{background:var(--err);color:#1b0808}.slider-row{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--sub)}.slider-row input[type=range]{width:90px}.center-msg{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;z-index:5;color:var(--sub);font-size:14px;text-align:center;padding:24px;pointer-events:none}.flash{position:absolute;top:0;right:0;bottom:0;left:0;background:#fff;opacity:0;pointer-events:none;z-index:30}.flash.fire{animation:flashAnim .25s ease-out}@keyframes flashAnim{0%{opacity:.85}to{opacity:0}}