:root{color-scheme:dark;font-family:ui-monospace,SFMono-Regular,Consolas,Liberation Mono,monospace;--surface: #101318;--surface-soft: #151922;--line: #29303a;--line-strong: #76808d;--text: #d9dee7;--muted: #7d8794;--accent: #f0c15d}*{box-sizing:border-box}html,body{width:100%;height:100%;min-height:100vh;margin:0;overflow:hidden;background:#0b0d10;color:var(--text);-webkit-user-select:none;user-select:none;touch-action:none}main{position:fixed;top:0;right:0;bottom:0;left:0;width:100vw;height:100vh}canvas{display:block;width:100vw!important;height:100vh!important}.toolbar{position:fixed;top:14px;left:14px;z-index:10;display:flex;width:188px;flex-direction:column;gap:14px;padding:14px;border:1px solid var(--line);border-radius:6px;background:#101318eb;box-shadow:0 12px 28px #00000047;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.brand{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:1px solid var(--line);cursor:move;touch-action:none}.brand-title{color:var(--text);font-size:13px;font-weight:700;letter-spacing:0;text-transform:uppercase}.brand-mark{color:var(--muted);font-size:11px}.toolbar-group{display:flex;flex-direction:column;gap:7px}.section-label{color:var(--muted);font-size:10px;font-weight:700;text-transform:uppercase}.button-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}button{height:32px;border:1px solid var(--line);border-radius:4px;background:var(--surface-soft);color:var(--text);font:inherit;font-size:11px;font-weight:700;cursor:pointer}button:hover{border-color:var(--line-strong)}button.active{border-color:var(--accent);color:var(--accent)}.wide{width:100%}.button-grid .wide{grid-column:1 / -1}label{display:flex;align-items:center;justify-content:space-between;gap:8px;color:var(--muted);font-size:11px;font-weight:700;white-space:nowrap}input[type=range]{width:100%;accent-color:var(--accent)}.stat{padding-top:10px;border-top:1px solid var(--line);color:var(--muted);font-size:11px;line-height:1.7}@media(max-width:620px){.toolbar{top:auto;right:10px;bottom:10px;left:10px;width:auto;max-height:45vh;overflow:auto}}.toolbar{width:224px;max-height:calc(100dvh - 28px);overflow:hidden;gap:10px}.brand{align-items:center;padding-bottom:8px}.brand-title{font-size:12px}#toolbar-toggle{padding:0 10px;flex-shrink:0}#toolbar-content{display:flex;flex-direction:column;gap:14px;overflow-y:auto;min-height:0;padding-right:4px;overscroll-behavior:contain;touch-action:pan-y}#toolbar-content[hidden]{display:none}.quick-controls{display:none;grid-template-columns:1fr 1fr 1fr;align-items:center;gap:6px;font-size:11px}.collapsed .quick-controls{display:grid}#scene-status{margin:0;color:var(--muted);font-size:11px;line-height:1.5;flex-shrink:0}.collapsed #scene-status{display:none}#fps{color:var(--muted);font-size:10px}select{width:100%;min-height:36px;background:var(--surface-soft);color:var(--text);border:1px solid var(--line);border-radius:4px;padding:5px;font:inherit;font-size:12px}button:disabled{opacity:.4;cursor:default}button:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}#canvas-host canvas{touch-action:none}@media(max-width:620px){.toolbar{width:auto;max-height:55dvh;bottom:max(8px,env(safe-area-inset-bottom));left:8px;right:8px;top:auto;padding:10px 12px}.brand{cursor:default}.quick-controls{display:grid}.toolbar button,.toolbar select{min-height:44px}.button-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.toolbar input[type=range]{min-height:36px;touch-action:pan-x}#toolbar-content{gap:12px}#scene-status{max-height:4.5em;overflow-y:auto;touch-action:pan-y}}