:root{--bg: #0d0d18;--panel-bg: #12121f;--panel-border: #1e1e36;--panel-hover: #1a1a2e;--accent: #6366f1;--accent-dim: #4c50c4;--accent-2: #8b5cf6;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--text: #e2e8f0;--text-muted: #64748b;--text-dim: #94a3b8;--sidebar-w: 288px;--radius-sm: 6px;--radius: 10px;--radius-lg: 14px;--font: "Inter", system-ui, sans-serif;--font-mono: "JetBrains Mono", monospace;--transition: .15s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden;font-family:var(--font);background:var(--bg);color:var(--text);font-size:13px;-webkit-font-smoothing:antialiased}#app{position:relative;display:flex;height:100vh;width:100vw;overflow:hidden}.global-loading{position:fixed;inset:0;z-index:10000;display:flex;align-items:center;justify-content:center;background:#0a0a12eb;backdrop-filter:blur(12px);transition:opacity .2s ease}.global-loading.hidden{opacity:0;visibility:hidden;pointer-events:none}.global-loading-inner{text-align:center;max-width:320px;padding:24px}.global-loading-spinner{width:40px;height:40px;margin:0 auto 20px;border:3px solid var(--panel-border);border-top-color:var(--accent);border-radius:50%;animation:global-spin .7s linear infinite}@keyframes global-spin{to{transform:rotate(360deg)}}.global-loading-title{font-size:17px;font-weight:600;color:var(--text);margin-bottom:8px}.global-loading-sub{font-size:12px;color:var(--text-muted);line-height:1.45}#sidebar{width:var(--sidebar-w);flex-shrink:0;background:var(--panel-bg);border-right:1px solid var(--panel-border);display:flex;flex-direction:column;min-height:0;overflow:hidden;scrollbar-width:thin;scrollbar-color:var(--panel-border) transparent}.sidebar-main{position:relative;flex:1;min-height:0;overflow-y:auto;overflow-x:hidden}.panel-section-title{font-size:12px;font-weight:600;color:var(--text-dim);letter-spacing:.02em;margin-bottom:12px;line-height:1.3}.sidebar-main::-webkit-scrollbar{width:4px}.sidebar-main::-webkit-scrollbar-track{background:transparent}.sidebar-main::-webkit-scrollbar-thumb{background:var(--panel-border);border-radius:4px}#sidebar::-webkit-scrollbar{width:4px}#sidebar::-webkit-scrollbar-track{background:transparent}#sidebar::-webkit-scrollbar-thumb{background:var(--panel-border);border-radius:4px}#sidebar-header{padding:20px 16px 16px;border-bottom:1px solid var(--panel-border);flex-shrink:0}.sidebar-app-title{font-size:17px;font-weight:600;color:var(--text);letter-spacing:-.025em;line-height:1.25;margin:0}.panel{padding:14px 16px;border-bottom:1px solid var(--panel-border)}.panel-title{font-size:10px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);margin-bottom:12px}#sidebar-footer{flex-shrink:0;padding:12px 16px;font-size:10px;color:var(--text-muted);border-top:1px solid var(--panel-border)}.field{margin-bottom:10px}.field-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.field-header label{font-size:12px;color:var(--text-dim);font-weight:500}.n-input-row{display:flex;align-items:center;gap:8px}.cut-depth-hint{font-size:10px;color:var(--text-muted)}.n-input-row input[type=number]{width:64px;flex-shrink:0;background:var(--bg);border:1px solid var(--panel-border);border-radius:var(--radius-sm);color:var(--text);font-family:var(--font-mono);font-size:13px;font-weight:500;padding:5px 8px;text-align:center;outline:none;transition:border-color var(--transition)}.n-input-row #cut-depth-input{width:88px;min-width:0}.n-input-row input[type=number]:focus{border-color:var(--accent)}input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none}input[type=number]{-moz-appearance:textfield}.slider{-webkit-appearance:none;appearance:none;width:100%;height:4px;background:var(--panel-border);border-radius:2px;outline:none;cursor:pointer}.slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent);box-shadow:0 0 6px #6366f180;cursor:pointer;transition:background var(--transition),box-shadow var(--transition)}.slider::-webkit-slider-thumb:hover{background:var(--accent-2);box-shadow:0 0 10px #8b5cf6b3}.slider::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--accent);border:none;cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:7px 14px;border-radius:var(--radius-sm);border:none;font-family:var(--font);font-size:12px;font-weight:500;cursor:pointer;transition:all var(--transition);white-space:nowrap;user-select:none}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-2)}.btn-primary:active{background:var(--accent-dim)}.btn-primary.running{background:var(--danger)}.btn-primary.running:hover{background:#dc2626}.btn-secondary{background:var(--panel-hover);color:var(--text-dim);border:1px solid var(--panel-border)}.btn-secondary:hover{background:#222240;color:var(--text)}.btn-secondary:active{background:var(--panel-border)}.btn-export{background:transparent;color:var(--accent);border:1px solid var(--accent);font-size:12px}.btn-export:hover{background:#6366f11f}.btn-export:active{background:#6366f140}.full-width{width:100%}.flex-1{flex:1}.btn-row{display:flex;gap:8px;margin-bottom:10px}.toggles{display:flex;flex-direction:column;gap:8px}.toggle{display:flex;align-items:center;gap:10px;cursor:pointer;user-select:none}.toggle input[type=checkbox]{display:none}.toggle-track{flex-shrink:0;width:32px;height:18px;background:var(--panel-border);border-radius:9px;position:relative;transition:background var(--transition)}.toggle-track:after{content:"";position:absolute;top:3px;left:3px;width:12px;height:12px;border-radius:50%;background:var(--text-muted);transition:transform var(--transition),background var(--transition)}.toggle input:checked+.toggle-track{background:var(--accent)}.toggle input:checked+.toggle-track:after{transform:translate(14px);background:#fff}.toggle-label{font-size:12px;color:var(--text-dim)}.badge{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-family:var(--font-mono);font-size:11px;font-weight:600;padding:2px 8px;border-radius:20px;letter-spacing:.02em}.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:10px}.stat{background:var(--bg);border:1px solid var(--panel-border);border-radius:var(--radius-sm);padding:8px 10px}.stat-label{display:block;font-size:10px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:3px}.stat-value{font-size:14px;font-weight:600;color:var(--text)}.mono{font-family:var(--font-mono)}.fairness-section{margin-top:4px}.fairness-bar{height:6px;background:var(--panel-border);border-radius:3px;overflow:hidden;margin-top:6px;margin-bottom:6px}#fairness-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--danger),var(--warning),var(--success));background-size:100% 100%;border-radius:3px;transition:width .4s ease}.hint{font-size:10px;color:var(--text-muted);line-height:1.5;margin-top:4px}.color-row{display:flex;align-items:center;gap:10px}input[type=color]{-webkit-appearance:none;appearance:none;width:32px;height:32px;border:2px solid var(--panel-border);border-radius:var(--radius-sm);background:none;cursor:pointer;padding:2px;flex-shrink:0}input[type=color]::-webkit-color-swatch-wrapper{padding:0}input[type=color]::-webkit-color-swatch{border:none;border-radius:4px}.color-presets{display:flex;flex-wrap:wrap;gap:5px}.color-chip{width:20px;height:20px;border-radius:4px;border:2px solid transparent;cursor:pointer;transition:border-color var(--transition),transform var(--transition);padding:0}.color-chip:hover{border-color:#ffffff80;transform:scale(1.15)}#viewport{flex:1;position:relative;overflow:hidden;background:#0d0d18}#three-canvas{display:block;width:100%;height:100%;touch-action:none}.preview-btn{position:absolute;top:20px;right:20px;padding:10px 18px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border:none;border-radius:var(--radius-sm);font-family:var(--font);font-size:13px;font-weight:600;cursor:pointer;transition:all var(--transition);box-shadow:0 4px 12px #6366f14d;z-index:10}.preview-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 16px #6366f180}.preview-btn:active:not(:disabled){transform:translateY(0)}.preview-btn:disabled{opacity:.55;cursor:not-allowed}.preview-btn.hidden{display:none}.return-edit-corner{position:absolute;top:20px;right:20px;padding:10px 18px;background:var(--panel-hover);color:var(--text-dim);border:1px solid var(--panel-border);border-radius:var(--radius-sm);font-family:var(--font);font-size:13px;font-weight:600;cursor:pointer;transition:all var(--transition);z-index:10}.return-edit-corner:hover{background:#222240;color:var(--text);border-color:var(--accent)}.return-edit-corner.hidden{display:none}.reset-camera-btn{position:absolute;bottom:20px;left:20px;padding:8px 14px;background:var(--panel-hover);color:var(--text-dim);border:1px solid var(--panel-border);border-radius:var(--radius-sm);font-family:var(--font);font-size:12px;font-weight:500;cursor:pointer;transition:all var(--transition);z-index:10}.reset-camera-btn:hover{background:#222240;color:var(--text);border-color:var(--accent)}.reset-camera-btn.hidden{display:none}.render-overlay .btn-row+.btn{margin-top:0}.render-overlay{position:absolute;inset:0;z-index:20;display:flex;align-items:flex-start;justify-content:center;padding:20px 16px 24px;background:#0a0a12eb;backdrop-filter:blur(10px);overflow-y:auto;transition:opacity .25s ease}.render-overlay.hidden{opacity:0;visibility:hidden;pointer-events:none}.render-overlay:not(.hidden){visibility:visible}.render-overlay-content{width:100%;max-width:240px;text-align:left;margin-top:8px}.render-overlay-text{font-size:14px;color:var(--text);margin-bottom:12px;font-weight:600}#hud{position:absolute;top:0;left:0;right:0;padding:18px 22px;pointer-events:none;z-index:1}.hud-left{display:flex;flex-direction:column;align-items:flex-start;gap:6px}#hud-n{font-family:var(--font-mono);font-size:36px;font-weight:600;background:linear-gradient(135deg,#fff 40%,var(--accent-2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.04em;line-height:1}#hud-hint{font-size:10px;color:#ffffff59;line-height:1.35;max-width:220px}*{scrollbar-width:thin;scrollbar-color:var(--panel-border) transparent}@media(max-width:640px){#app{flex-direction:column}#sidebar{width:100%;height:40vh;border-right:none;border-bottom:1px solid var(--panel-border)}.sidebar-main{min-height:0}#viewport{flex:1;min-height:0}}