@import"https://fonts.googleapis.com/css2?family=Didact+Gothic&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap";:root{--color-bg: #020204;--color-surface: #0c0c10;--color-panel: #131318;--color-panel-soft: #1a1a22;--color-border: #21212b;--color-fg: #f5f5ff;--color-muted: #a8a9bb;--color-muted-strong: #d2d3e4;--color-accent: #00ff7f;--color-secondary: #9a1aff;--color-highlight: #6e6eff;--glow-gradient: radial-gradient(circle at 20% 20%, rgba(0, 255, 127, .18), transparent 55%), radial-gradient(circle at 85% 10%, rgba(154, 26, 255, .16), transparent 60%), radial-gradient(circle at 60% 90%, rgba(110, 110, 255, .12), transparent 65%);--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--font-display: "Didact Gothic", "Inter", sans-serif;--font-body: "Inter", system-ui, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, monospace}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html,body{height:100%;width:100%;background:var(--color-bg);color:var(--color-fg);font-family:var(--font-body);overflow:hidden;overscroll-behavior:none;-webkit-font-smoothing:antialiased}body{position:fixed;top:0;right:0;bottom:0;left:0}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.05) 1px,transparent 0);background-size:48px 48px;opacity:.28;pointer-events:none;z-index:0}body:after{content:"";position:fixed;top:0;right:0;bottom:0;left:0;background:var(--glow-gradient);filter:blur(60px);opacity:.55;pointer-events:none;z-index:0}#app{position:relative;height:100%;width:100%;overflow:hidden;z-index:1}.editor-app{position:relative;height:100%;width:100%;overflow:hidden}.stage{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;min-height:0}.stage>.canvas-wrap{min-height:0}.stage>.top-bar,.stage>.formula-display,.stage>.bottom-bar{flex-shrink:0}.top-bar{position:relative;z-index:5;padding:calc(var(--safe-top) + 14px) 16px 8px;display:flex;align-items:center;justify-content:space-between;gap:12px}.brand-link{display:inline-flex;color:var(--color-fg);text-decoration:none;flex-shrink:0}.brand-link svg{width:92px}.top-bar-spacer{flex:1}.header-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--color-border);background:var(--color-panel);color:var(--color-fg);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .15s ease;font-size:16px}.header-btn:active{transform:scale(.93);border-color:var(--color-accent);color:var(--color-accent)}.header-btn.active{background:var(--color-accent);color:var(--color-bg);border-color:var(--color-accent)}.formula-display{padding:8px 16px 4px;text-align:center;position:relative;z-index:4;flex-shrink:0}.formula-text{font-family:var(--font-mono);font-weight:600;font-size:18px;line-height:1.5;word-spacing:.3em;overflow-x:auto;white-space:nowrap;padding:4px 0;-webkit-overflow-scrolling:touch}.formula-text::-webkit-scrollbar{display:none}.formula-text .move{display:inline-block;padding:2px 8px;border-radius:6px;transition:all .3s ease;margin:0 1px;color:var(--color-muted-strong)}.formula-text .move.done{color:var(--color-muted);opacity:.4}.formula-text .move.current{background:var(--color-accent);color:var(--color-bg);box-shadow:0 0 16px #00ff7f73}.formula-text .empty{color:var(--color-muted);font-style:italic;opacity:.5;font-size:14px}.canvas-wrap{flex:1;position:relative;min-height:0;touch-action:none}#cube-canvas,.cube-canvas{width:100%;height:100%;display:block}.bottom-bar{position:relative;z-index:5;padding:12px 16px calc(var(--safe-bottom) + 16px);flex-shrink:0;background:linear-gradient(to top,var(--color-bg) 60%,transparent)}.controls-row{display:flex;align-items:center;justify-content:center;gap:14px}.ctrl-btn{width:48px;height:48px;border-radius:14px;border:1px solid var(--color-border);background:var(--color-panel);color:var(--color-fg);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s ease;font-size:18px;font-family:inherit}.ctrl-btn:active:not(:disabled){transform:scale(.92)}.ctrl-btn:disabled{opacity:.25;cursor:not-allowed}.ctrl-btn.play{width:64px;height:64px;border-radius:18px;background:var(--color-accent);color:var(--color-bg);border-color:var(--color-accent);font-size:22px;box-shadow:0 8px 24px #00ff7f40}.ctrl-btn.play:active{background:var(--color-secondary);border-color:var(--color-secondary);color:var(--color-fg)}.sheet-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;z-index:9;opacity:0;pointer-events:none;transition:opacity .25s ease}.sheet-backdrop.open{opacity:1;pointer-events:auto}.sheet{position:fixed;left:0;right:0;bottom:0;z-index:10;background:var(--color-panel);border-top-left-radius:24px;border-top-right-radius:24px;border-top:1px solid var(--color-border);box-shadow:0 -10px 40px #00000080;transform:translateY(100%);transition:transform .3s cubic-bezier(.32,.72,.3,1);max-height:85vh;display:flex;flex-direction:column;padding-bottom:var(--safe-bottom)}.sheet.open{transform:translateY(0)}.sheet-handle-area{padding:8px 0 4px;display:flex;justify-content:center;cursor:grab;touch-action:none}.sheet-handle{width:40px;height:4px;background:var(--color-border);border-radius:2px}.sheet-tabs{display:flex;gap:4px;padding:4px 16px 0;border-bottom:1px solid var(--color-border)}.sheet-tab{flex:1;padding:12px 0;border:none;background:transparent;color:var(--color-muted);font-family:inherit;font-size:10px;letter-spacing:.2em;text-transform:uppercase;cursor:pointer;font-weight:700;border-bottom:2px solid transparent;transition:all .15s ease}.sheet-tab.active{color:var(--color-accent);border-bottom-color:var(--color-accent)}.sheet-content{flex:1;overflow-y:auto;padding:20px 16px 24px;-webkit-overflow-scrolling:touch}.sheet-content::-webkit-scrollbar{width:4px}.sheet-content::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:2px}.field{margin-bottom:18px}.field-label{font-size:10px;letter-spacing:.2em;color:var(--color-muted);text-transform:uppercase;margin-bottom:8px;display:flex;justify-content:space-between;align-items:center;font-weight:600}.field-label .hint{text-transform:none;letter-spacing:.05em;opacity:.6;font-weight:400}.input,.textarea{width:100%;background:var(--color-panel-soft);border:1px solid var(--color-border);border-radius:12px;padding:14px;color:var(--color-fg);font-family:var(--font-mono);font-size:14px;transition:border-color .15s ease;resize:none;-webkit-appearance:none}.input:focus,.textarea:focus{outline:none;border-color:var(--color-accent)}.textarea{font-size:15px;letter-spacing:.05em;min-height:70px}.section-title{font-family:var(--font-display);font-size:16px;margin-bottom:12px;display:flex;align-items:center;gap:8px}.section-title:before{content:"";width:4px;height:16px;background:var(--color-accent);border-radius:2px}.section-desc{font-size:11px;color:var(--color-muted);margin-bottom:14px;line-height:1.5}.face-tabs{display:grid;grid-template-columns:repeat(6,1fr);gap:4px;margin-bottom:14px}.face-tab-btn{padding:10px 0;background:var(--color-panel-soft);border:1px solid var(--color-border);border-radius:10px;font-family:inherit;font-weight:700;color:var(--color-muted);cursor:pointer;font-size:13px;transition:all .15s ease}.face-tab-btn.active{background:var(--color-accent);color:var(--color-bg);border-color:var(--color-accent)}.face-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;background:var(--color-panel-soft);padding:12px;border-radius:14px;border:1px solid var(--color-border);aspect-ratio:1;max-width:240px;margin:0 auto}.face-cell{aspect-ratio:1;border-radius:10px;cursor:pointer;transition:all .15s ease;position:relative}.face-cell:active{transform:scale(.92)}.face-cell.disabled{opacity:.45}.face-cell.disabled:after{content:"✕";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:var(--color-fg);font-size:22px;font-weight:700;opacity:.7}.face-help{font-size:12px;color:var(--color-muted);margin-top:12px;text-align:center;line-height:1.5}.face-help b{color:var(--color-fg)}.btn{padding:12px 14px;border-radius:10px;border:1px solid var(--color-border);background:var(--color-panel-soft);color:var(--color-fg);font-family:inherit;font-size:11px;letter-spacing:.15em;text-transform:uppercase;font-weight:700;cursor:pointer;transition:all .15s ease}.btn:active{transform:scale(.96);border-color:var(--color-accent);color:var(--color-accent)}.btn-row{display:flex;gap:8px}.btn-row .btn{flex:1}.btn.primary{background:var(--color-accent);color:var(--color-bg);border-color:var(--color-accent)}.divider{height:1px;background:var(--color-border);margin:22px 0}.size-toggle{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:6px}.size-btn{padding:12px 0;background:var(--color-panel-soft);border:1px solid var(--color-border);border-radius:10px;font-family:var(--font-mono);font-weight:700;color:var(--color-muted);cursor:pointer;font-size:13px;letter-spacing:.05em;transition:all .15s ease}.size-btn:active{transform:scale(.96)}.size-btn.active{background:var(--color-accent);color:var(--color-bg);border-color:var(--color-accent)}.preset-list{display:flex;flex-direction:column;gap:8px}.preset-empty{padding:24px 12px;text-align:center;font-size:12px;color:var(--color-muted);font-style:italic}.preset-item{padding:14px;background:var(--color-panel-soft);border:1px solid var(--color-border);border-radius:12px;cursor:pointer;transition:all .15s ease}.preset-item:active{transform:scale(.98)}.preset-item.active{border-color:var(--color-accent);background:#00ff7f14}.preset-name{font-size:14px;font-weight:700;margin-bottom:4px;font-family:var(--font-display)}.preset-moves{font-size:11px;color:var(--color-muted);letter-spacing:.05em;word-break:break-all;font-family:var(--font-mono)}.share-dialog{position:fixed;top:0;right:0;bottom:0;left:0;z-index:20;display:flex;align-items:center;justify-content:center;background:#000000b3;padding:24px}.share-card{background:var(--color-panel);border:1px solid var(--color-border);border-radius:16px;padding:24px;max-width:480px;width:100%;display:flex;flex-direction:column;gap:16px;box-shadow:0 20px 60px #00000080,0 0 60px #00ff7f14}.share-card h3{font-family:var(--font-display);font-size:18px;font-weight:400}.share-row{display:flex;gap:8px;align-items:flex-start}.share-row .input{flex:1;font-size:12px;padding:10px 12px}.share-row .share-snippet{flex:1}.copy-btn{padding:10px 16px;border-radius:10px;border:1px solid var(--color-accent);background:var(--color-accent);color:var(--color-bg);font-family:inherit;font-size:11px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;cursor:pointer;flex-shrink:0;transition:all .15s ease;min-width:84px}.copy-btn.done{background:transparent;color:var(--color-accent)}.share-snippet{width:100%;min-height:80px;padding:12px;border-radius:10px;background:var(--color-panel-soft);border:1px solid var(--color-border);color:var(--color-fg);font-family:var(--font-mono);font-size:11px;resize:none}@media (min-width: 900px){.editor-app{display:grid;grid-template-columns:1fr 400px}.editor-app .stage{position:relative;inset:auto;border-right:1px solid var(--color-border)}.top-bar{padding:24px 28px 12px}.formula-display{padding:12px 28px}.formula-text{font-size:22px;white-space:normal}.bottom-bar{padding:16px 28px 28px;background:transparent}.header-btn.menu-btn{display:none}.editor-app .sheet{position:relative;transform:none!important;max-height:none;border-radius:0;border-top:none;border-left:1px solid var(--color-border);box-shadow:none;padding-bottom:0}.editor-app .sheet-backdrop,.editor-app .sheet-handle-area{display:none}}body.embed{background:transparent}body.embed:before,body.embed:after{display:none}.embed-stage{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column}.embed-formula{position:relative;z-index:4;padding:6px 12px;text-align:center;flex-shrink:0}.embed-formula .formula-text{font-size:13px;line-height:1.3}.embed-formula .formula-text .move{padding:1px 5px}.embed-canvas-wrap{flex:1;position:relative;min-height:0;touch-action:none}.embed-bottom{flex-shrink:0;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:8px 12px;gap:8px}.embed-controls{grid-column:2;display:flex;align-items:center;gap:6px}.embed-controls .ctrl-btn{width:36px;height:36px;border-radius:10px;font-size:14px}.embed-controls .ctrl-btn.play{width:44px;height:44px;border-radius:12px;font-size:16px;box-shadow:0 4px 12px #00ff7f40}.embed-edit-btn{grid-column:3;justify-self:end;display:inline-flex;align-items:center;gap:4px;padding:6px 10px;border-radius:8px;background:transparent;border:1px solid var(--color-border);color:var(--color-muted);font-family:var(--font-mono);font-size:10px;letter-spacing:.15em;text-transform:uppercase;text-decoration:none;cursor:pointer;transition:all .15s ease}.embed-edit-btn:hover{border-color:var(--color-accent);color:var(--color-accent)}