:root{color-scheme:dark}.perf-hud{position:fixed;top:12px;right:12px;background:#0f0f12c7;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.08);border-radius:10px;padding:10px 12px;font-size:12px;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;min-width:140px;z-index:10;user-select:none}.perf-hud .row{display:flex;justify-content:space-between;gap:12px;line-height:1.6}.perf-hud .label{opacity:.55}.perf-hud .value{font-weight:600}.hud-toggle{position:fixed;top:12px;right:12px;width:32px;height:32px;border-radius:8px;background:#0f0f12c7;border:1px solid rgba(255,255,255,.08);color:#fff;cursor:pointer;z-index:10}.hud-toggle-inline{position:absolute;top:4px;right:4px;width:20px;height:20px;font-size:14px;background:transparent;border:none;opacity:.5}.hud-toggle-inline:hover{opacity:1}.loading-overlay{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:#0b0b0cdb;backdrop-filter:blur(6px);z-index:20}.loading-overlay .title{font-size:15px;font-weight:600;letter-spacing:.02em}.loading-overlay .msg{font-size:12px;opacity:.65;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace}.loading-overlay .bar{width:min(280px,60vw);height:4px;background:#ffffff14;border-radius:999px;overflow:hidden}.loading-overlay .bar .fill{height:100%;background:linear-gradient(90deg,#7c9cff,#c084fc);transition:width .12s ease-out}.loading-overlay.error .title{color:#f47373}.spinner{width:28px;height:28px;border:2.5px solid rgba(255,255,255,.1);border-top-color:#7c9cff;border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.scene-picker{position:fixed;top:12px;left:12px;z-index:11;font-family:inherit}.scene-picker-btn{display:flex;align-items:center;gap:8px;padding:8px 12px;background:#0f0f12c7;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.08);border-radius:10px;color:#fff;font-size:13px;cursor:pointer;min-width:200px}.scene-picker-btn:hover{background:#19191ed9}.scene-picker-btn .label{flex:1;text-align:left;font-weight:600}.scene-picker-btn .caret{opacity:.6;font-size:11px}.dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.dot[data-cat=venue]{background:#c084fc}.dot[data-cat=indoor]{background:#7ee787}.dot[data-cat=outdoor]{background:#ffd166}.dot[data-cat=sample]{background:#7c9cff}.scene-picker-menu{margin-top:6px;background:#0f0f12ed;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.08);border-radius:10px;width:280px;max-height:70vh;overflow-y:auto;padding:6px}.scene-picker-menu .group{margin-bottom:6px}.scene-picker-menu .group:last-child{margin-bottom:0}.scene-picker-menu .group-label{font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:#fff6;padding:6px 10px 2px}.scene-picker-menu .item{display:flex;align-items:flex-start;gap:10px;width:100%;padding:8px 10px;background:transparent;border:none;border-radius:6px;color:#fff;cursor:pointer;text-align:left}.scene-picker-menu .item:hover{background:#ffffff0f}.scene-picker-menu .item.active{background:#7c9cff2e}.scene-picker-menu .item .dot{margin-top:6px}.scene-picker-menu .item-text{flex:1;min-width:0}.scene-picker-menu .item-label{font-size:13px;font-weight:600}.scene-picker-menu .item-desc{font-size:11px;opacity:.55;margin-top:2px;line-height:1.35}.scene-controls{position:fixed;left:50%;bottom:max(14px,env(safe-area-inset-bottom,14px));transform:translate(-50%);z-index:10}.quality-switcher{display:flex;gap:4px;padding:4px;background:#0f0f12c7;backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.08);border-radius:999px}.quality-switcher button{appearance:none;background:transparent;border:none;color:#ffffffb8;font-size:12px;font-family:inherit;padding:6px 12px;border-radius:999px;cursor:pointer;text-transform:capitalize}.quality-switcher button.active{background:#ffffff1f;color:#fff}.quality-switcher button:hover:not(.active){background:#ffffff0f}