:root{--bg: #0a0a0f;--bg-panel: rgba(16, 16, 24, .85);--bg-card: rgba(24, 24, 36, .7);--bg-hover: rgba(36, 36, 52, .8);--border: rgba(255, 255, 255, .06);--border-hover: rgba(255, 255, 255, .12);--text: #e8e8f0;--text-dim: #8888a0;--text-muted: #55556a;--accent: #6c63ff;--accent-glow: rgba(108, 99, 255, .3);--accent-hover: #7b73ff;--success: #4ade80;--warning: #fbbf24;--danger: #f87171;--radius: 12px;--radius-sm: 8px;--panel-width: 320px;--transition: .3s cubic-bezier(.4, 0, .2, 1);font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}body{background:var(--bg);color:var(--text);overflow:hidden;width:100vw;height:100vh}#viewport{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0}.upload-overlay{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at center,rgba(108,99,255,.08) 0%,var(--bg) 70%);opacity:0;pointer-events:none;transition:opacity .5s ease}.upload-overlay.visible{opacity:1;pointer-events:all}.upload-zone{display:flex;flex-direction:column;align-items:center;gap:16px;padding:60px 80px;border:2px dashed rgba(108,99,255,.3);border-radius:24px;background:#10101899;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);transition:var(--transition);cursor:pointer;max-width:520px}.upload-zone:hover,.upload-zone.drag-over{border-color:var(--accent);background:#6c63ff14;box-shadow:0 0 60px #6c63ff26;transform:scale(1.01)}.upload-zone.drag-over{border-style:solid}.upload-icon{color:var(--accent);animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.upload-zone h1{font-size:1.5rem;font-weight:700;letter-spacing:-.02em;background:linear-gradient(135deg,#e8e8f0,#6c63ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.upload-zone p{color:var(--text-dim);font-size:.9rem}.upload-divider{color:var(--text-muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.1em}.upload-btn{padding:10px 28px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);font-size:.85rem;font-weight:600;cursor:pointer;transition:var(--transition);letter-spacing:.02em}.upload-btn:hover{background:var(--accent-hover);box-shadow:0 4px 20px var(--accent-glow);transform:translateY(-1px)}.upload-hint{font-size:.75rem!important;color:var(--text-muted)!important}.loading-overlay{position:fixed;inset:0;z-index:200;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;background:#0a0a0fe6;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);opacity:0;pointer-events:none;transition:opacity .3s ease}.loading-overlay.visible{opacity:1;pointer-events:all}.loader-ring{width:48px;height:48px;border:3px solid rgba(108,99,255,.15);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-overlay p{color:var(--text-dim);font-size:.9rem}.side-panel{position:fixed;top:0;right:0;width:var(--panel-width);height:100vh;z-index:99;background:var(--bg-panel);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-left:1px solid var(--border);display:flex;flex-direction:column;gap:2px;padding:16px;overflow-y:auto;transform:translate(100%);transition:transform var(--transition)}.side-panel.open{transform:translate(0)}.side-panel::-webkit-scrollbar{width:4px}.side-panel::-webkit-scrollbar-thumb{background:#ffffff14;border-radius:4px}.panel-section{padding:14px 0;border-bottom:1px solid var(--border)}.panel-section:last-child{border-bottom:none}.panel-title{display:flex;align-items:center;gap:8px;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:12px}.panel-title svg{opacity:.6}.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px 12px}.mesh-list{display:flex;flex-direction:column;gap:3px;max-height:180px;overflow-y:auto}.mesh-list::-webkit-scrollbar{width:3px}.mesh-list::-webkit-scrollbar-thumb{background:#ffffff14;border-radius:3px}.mesh-item{display:flex;flex-direction:column;gap:4px;padding:6px 8px;border-radius:6px;transition:var(--transition);cursor:pointer}.mesh-item:hover{background:var(--bg-hover)}.mesh-item.hidden{opacity:.4}.mesh-item.mesh-selected{background:#6c63ff1a;border:1px solid var(--accent);border-radius:6px}.transform-toolbar{display:flex;gap:4px;margin-bottom:6px}.transform-btn{display:flex;align-items:center;gap:4px;padding:4px 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var(--border);border-radius:var(--radius);color:var(--text);font-size:.85rem;font-weight:500;opacity:0;transition:all .4s cubic-bezier(.4,0,.2,1);pointer-events:none;white-space:nowrap}.toast.visible{opacity:1;transform:translate(-50%) translateY(0)}.toast.success{border-color:#4ade804d}.toast.error{border-color:#f871714d}@media(max-width:768px){:root{--panel-width: 100vw}.upload-zone{padding:40px 32px;margin:16px}.side-panel{border-left:none;border-top:1px solid var(--border)}}@keyframes pulse-glow{0%,to{box-shadow:0 0 20px #6c63ff1a}50%{box-shadow:0 0 40px #6c63ff40}}.panel-section{animation:fadeSlideIn .4s ease backwards}.panel-section:nth-child(1){animation-delay:.05s}.panel-section:nth-child(2){animation-delay:.1s}.panel-section:nth-child(3){animation-delay:.15s}.panel-section:nth-child(4){animation-delay:.2s}@keyframes fadeSlideIn{0%{opacity:0;transform:translate(12px)}to{opacity:1;transform:translate(0)}}.file-pool{margin-top:20px;background:#101018cc;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--radius);padding:16px;min-width:340px;max-width:480px;max-height:320px;overflow-y:auto}.file-pool-title{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:10px}.file-pool-list{display:flex;flex-direction:column;gap:4px}.file-pool-item{display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:6px;background:var(--bg-card);border:1px solid var(--border);font-size:.8rem}.pool-item-icon{font-size:.9rem;flex-shrink:0}.pool-item-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}.pool-item-badge{font-size:.65rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;padding:2px 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