:root{--bg: #16171a;--panel: rgba(28, 29, 34, .92);--line: rgba(255, 255, 255, .08);--line-strong: rgba(255, 255, 255, .14);--text: #f2f2f3;--mute: #8a8b92;--active: #f2f2f3;--accent: #3b82f6;--accent-text: #f5f8ff;--warn: #e85d6a;--ok: #6fbf8f}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#app{width:100%;height:100%;overflow:hidden;color:var(--text);font-family:Avenir Next,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);-webkit-user-select:none;user-select:none;touch-action:none}#cube-stage{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;cursor:grab}#cube-stage:active{cursor:grabbing}#cube-stage canvas{display:block;width:100%;height:100%;touch-action:none}#webgl-error{position:absolute;top:0;right:0;bottom:0;left:0;z-index:20;display:flex;align-items:center;justify-content:center;padding:24px;text-align:center;color:var(--mute);background:var(--bg);font-size:15px;line-height:1.6}.hidden{display:none!important}.hud{position:absolute;inset-inline:0;z-index:10;pointer-events:none;padding:calc(14px + env(safe-area-inset-top,0px)) 14px 0}@media (min-width: 640px){.hud{padding:calc(22px + env(safe-area-inset-top,0px)) 28px 0}}.hud-bottom{top:auto;bottom:0;padding:0 14px calc(22px + env(safe-area-inset-bottom,0px))}@media (min-width: 640px){.hud-bottom{padding:0 28px calc(32px + env(safe-area-inset-bottom,0px))}}.hud-bottom-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;min-height:44px}.hud-row{display:flex;align-items:stretch;justify-content:space-between;gap:8px;min-height:44px}.hud-right{pointer-events:auto;display:flex;align-items:stretch;gap:8px;flex-shrink:0}.toggle-group{pointer-events:auto;display:flex;align-items:stretch;gap:8px;background:transparent;border:0;padding:0}.toggle{--tile: #5b8def;-webkit-appearance:none;-moz-appearance:none;appearance:none;display:inline-flex;align-items:center;justify-content:center;min-width:40px;padding:0 12px;border:0;border-radius:14px;background:var(--tile);color:#ffffffb8;font-family:Avenir Next,Segoe UI Rounded,PingFang SC,sans-serif;font-size:16px;font-weight:800;letter-spacing:0;white-space:nowrap;cursor:pointer;transition:color .12s ease,filter .12s ease}.toggle[data-size="3"]{--tile: #3ecf7a}.toggle[data-size="4"]{--tile: #5b8def}.toggle[data-size="5"]{--tile: #f0b429}.toggle:hover:not(:disabled){color:#fff;filter:brightness(1.08)}.toggle.active{color:#fff;filter:none;outline:2px solid #fff;outline-offset:2px}.toggle:disabled{opacity:.4;cursor:not-allowed;filter:none}.stat-block{pointer-events:none;min-width:72px}.moves-block{text-align:right}.stat-value{font-family:SF Mono,Menlo,Consolas,Cascadia Mono,monospace;font-size:28px;font-weight:500;letter-spacing:.02em;font-variant-numeric:tabular-nums;color:var(--text);line-height:1.05}@media (min-width: 640px){.stat-value{font-size:34px}}.stat-value.dim{color:#f2f2f347}.stat-label{margin-top:3px;font-size:11px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--mute);font-variant-numeric:tabular-nums;white-space:nowrap}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line-strong);border-radius:8px;background:transparent;color:var(--text);padding:0 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.bulb-body{fill:#f5d76e59}.btn-hint.is-on .bulb-rays{opacity:1}.modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;display:flex;align-items:center;justify-content:center;padding:24px;pointer-events:auto}.modal.hidden{display:none}.modal-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#0000008c}.modal-card{position:relative;z-index:1;width:min(300px,100%);padding:26px 22px 22px;border-radius:16px;background:#1e1f24;border:1px solid var(--line-strong);box-shadow:0 16px 40px #0006;text-align:center}.modal-title{margin:0;padding:0 4px 18px;font-size:18px;font-weight:700;letter-spacing:.02em;line-height:1.4;color:var(--text);border-bottom:1px solid var(--line-strong)}.modal-actions{display:flex;justify-content:space-between;align-items:center;margin-top:18px;padding:0 4px}.modal-icon-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:52px;height:52px;border-radius:50%;border:1.5px solid var(--line-strong);background:#ffffff0a;color:var(--text);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease,transform .12s ease}.modal-icon-btn svg{width:22px;height:22px;display:block}.modal-icon-btn:hover{transform:scale(1.04)}.modal-icon-btn:active{transform:scale(.97)}.modal-icon-btn--cancel{color:var(--warn);border-color:#e85d6a73;background:#e85d6a14}.modal-icon-btn--cancel:hover{background:#e85d6a29;border-color:#e85d6ab3}.modal-icon-btn--ok{color:var(--ok);border-color:#6fbf8f73;background:#6fbf8f1a}.modal-icon-btn--ok:hover{background:#6fbf8f2e;border-color:#6fbf8fb3}