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var(--transition)}.editor-title-input:hover{background:var(--panel)}.editor-title-input:focus{background:var(--panel);outline:none;border-color:transparent}.scene-sidebar{background:var(--bg-deep);border-right:1px solid var(--panel-border);display:flex;flex-direction:column;overflow:hidden}.scene-sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--panel-border);flex-shrink:0}.scene-sidebar-header h3{font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em}.scene-list{flex:1;overflow-y:auto;padding:8px}.scene-item{display:flex;align-items:center;gap:8px;padding:10px 10px 10px 12px;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition);position:relative;margin-bottom:2px;border:1px solid transparent}.scene-item:hover{background:var(--panel)}.scene-item.active{background:var(--panel);border-color:var(--teal-muted)}.scene-item-number{width:22px;height:22px;display:flex;align-items:center;justify-content:center;background:var(--bg-deep);border:1px solid var(--panel-border);border-radius:var(--radius-sm);font-size:11px;font-weight:700;color:var(--text-muted);flex-shrink:0}.scene-item.active .scene-item-number{background:var(--teal-dim);border-color:var(--teal-muted);color:var(--teal)}.scene-item-content{flex:1;min-width:0}.scene-item-title{font-size:13px;font-weight:600;color:var(--white);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.scene-item-subtitle{font-size:11px;color:var(--text-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.scene-item-actions{display:none;gap:2px;flex-shrink:0}.scene-item:hover .scene-item-actions{display:flex}.scene-item-btn{padding:3px 5px;font-size:11px;border-radius:4px;color:var(--text-muted);transition:all var(--transition)}.scene-item-btn:hover{color:var(--white);background:var(--panel-light)}.scene-item-btn.danger:hover{color:var(--danger);background:var(--danger-dim)}.editor-canvas{display:flex;flex-direction:column;overflow:hidden;background:var(--bg)}.canvas-area{flex:1;display:flex;align-items:center;justify-content:center;padding:24px;overflow:auto}.scene-preview{position:relative;width:100%;max-width:900px;aspect-ratio:16 / 9;background:var(--bg-deep);border-radius:var(--radius-lg);border:1px solid var(--panel-border);overflow:hidden;box-shadow:var(--shadow-lg);flex-shrink:0}.scene-preview-bg{position:absolute;top:0;right:0;bottom:0;left:0;object-fit:cover;width:100%;height:100%}.scene-preview-bg video{width:100%;height:100%;object-fit:cover}.scene-preview-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(to 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sans-serif}html,body{height:100%;background:linear-gradient(90deg,#0f2027,#203a43,#2c5364);background-attachment:fixed;color:var(--white);font-family:var(--font);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{height:100%;display:flex;flex-direction:column}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}button{font-family:var(--font);cursor:pointer;border:none;background:none;outline:none}input,textarea,select{font-family:var(--font);background:var(--bg-deep);border:1px solid var(--panel-border);color:var(--white);border-radius:var(--radius-sm);padding:8px 12px;font-size:14px;width:100%;outline:none;transition:border-color var(--transition)}input:focus,textarea:focus,select:focus{border-color:var(--teal-muted)}input::placeholder,textarea::placeholder{color:var(--text-dim)}select option{background:var(--panel)}textarea{resize:vertical;min-height:72px}label{display:block;font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}.btn{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;transition:all var(--transition);line-height:1;white-space:nowrap}.btn-primary{background:var(--teal);color:var(--bg)}.btn-primary:hover{background:#21f0dc;box-shadow:0 0 16px #18d5c34d}.btn-secondary{background:var(--panel);color:var(--white);border:1px solid var(--panel-border)}.btn-secondary:hover{background:var(--panel-light);border-color:var(--teal-muted)}.btn-ghost{background:transparent;color:var(--text-muted);border:1px solid transparent}.btn-ghost:hover{color:var(--white);background:var(--panel)}.btn-danger{background:var(--danger-dim);color:var(--danger);border:1px solid rgba(229,62,62,.25)}.btn-danger:hover{background:var(--danger);color:#fff}.btn-icon{padding:7px;border-radius:var(--radius-sm);font-size:16px}.btn-sm{padding:6px 12px;font-size:13px}.btn-lg{padding:12px 28px;font-size:15px;border-radius:var(--radius-md)}.btn:disabled{opacity:.45;cursor:not-allowed}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-deep)}::-webkit-scrollbar-thumb{background:var(--panel-border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--teal-muted)}.badge{display:inline-flex;align-items:center;padding:2px 10px;border-radius:99px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.04em}.badge-teal{background:var(--teal-dim);color:var(--teal)}.badge-orange{background:var(--orange-dim);color:var(--orange)}.badge-dim{background:#ffffff0f;color:var(--text-muted)}.divider{border:none;border-top:1px solid var(--panel-border);margin:16px 0}.spinner{width:20px;height:20px;border:2px solid var(--panel-border);border-top-color:var(--teal);border-radius:50%;animation:spin .6s linear infinite;display:inline-block}.spinner-lg{width:36px;height:36px;border-width:3px}@keyframes spin{to{transform:rotate(360deg)}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.form-group{margin-bottom:16px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.toast{position:fixed;bottom:24px;right:24px;background:var(--panel);border:1px solid var(--panel-border);border-left:3px solid var(--teal);color:var(--white);padding:12px 20px;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);font-size:14px;z-index:9999;animation:slideIn .2s ease}.toast-error{border-left-color:var(--danger)}@keyframes slideIn{0%{transform:translateY(16px);opacity:0}to{transform:translateY(0);opacity:1}}.app-shell{display:flex;flex-direction:column;min-height:100vh}.app-nav{display:flex;align-items:center;justify-content:space-between;padding:0 28px;height:58px;background:var(--bg-deep);border-bottom:1px solid var(--panel-border);flex-shrink:0}.app-nav-logo{display:flex;align-items:center;gap:10px;text-decoration:none}.app-nav-links{display:flex;gap:4px}.app-nav-link{padding:6px 14px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;color:var(--text-muted);text-decoration:none;transition:all var(--transition)}.app-nav-link:hover{color:var(--white);background:var(--panel);text-decoration:none}.app-nav-link.active{color:var(--teal);background:var(--teal-dim)}.app-nav-user{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted)}.app-nav-avatar{width:28px;height:28px;border-radius:50%;background:var(--teal-dim);border:1px solid var(--teal-muted);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:var(--teal)}.app-main{flex:1;display:flex;flex-direction:column}.asset-library{padding:32px;max-width:1400px;margin:0 auto;width:100%}.asset-library-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}.asset-library-header h1{font-size:22px;font-weight:700}.asset-library-filters{display:flex;gap:10px;margin-bottom:24px;flex-wrap:wrap;align-items:center}.asset-library-search{flex:1;min-width:200px;max-width:320px}.asset-type-filters{display:flex;gap:6px}.asset-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}.asset-card{background:var(--panel);border:1px solid var(--panel-border);border-radius:var(--radius-md);overflow:hidden;cursor:default;transition:all var(--transition)}.asset-card:hover{border-color:var(--teal-muted);transform:translateY(-1px)}.asset-card-thumb{height:120px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--bg-deep);position:relative}.asset-card-thumb img{width:100%;height:100%;object-fit:cover}.asset-card-thumb video{width:100%;height:100%;object-fit:cover}.asset-card-file-icon{font-size:40px;opacity:.5}.asset-card-type-badge{position:absolute;top:8px;left:8px}.asset-card-info{padding:10px 12px}.asset-card-name{font-size:12px;font-weight:600;color:var(--white);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}.asset-card-meta{display:flex;justify-content:space-between;align-items:center}.asset-card-size{font-size:11px;color:var(--text-dim)}.asset-card-delete{color:var(--text-dim);font-size:13px;padding:2px 4px;border-radius:3px}.asset-card-delete:hover{color:var(--danger);background:var(--danger-dim)}.upload-zone{border:2px dashed var(--panel-border);border-radius:var(--radius-xl);padding:40px;text-align:center;cursor:pointer;transition:all var(--transition);margin-bottom:28px}.upload-zone:hover,.upload-zone.drag-over{border-color:var(--teal-muted);background:var(--teal-dim)}.upload-zone.uploading{border-color:var(--teal-muted);background:var(--teal-dim);pointer-events:none}.upload-zone-progress-bar{width:60%;height:4px;background:#ffffff1a;border-radius:2px;overflow:hidden;margin-top:12px}.upload-zone-progress-fill{height:100%;background:var(--teal);transition:width .3s ease;border-radius:2px}.upload-zone-icon{font-size:40px;margin-bottom:12px;opacity:.5}.upload-zone h3{font-size:15px;font-weight:700;margin-bottom:4px}.upload-zone p{font-size:13px;color:var(--text-muted)}.upload-progress{margin-top:16px;display:flex;flex-direction:column;gap:8px}.upload-progress-item{background:var(--panel);border:1px solid var(--panel-border);border-radius:var(--radius-sm);padding:10px 14px;display:flex;align-items:center;gap:10px}.upload-progress-bar{flex:1;height:4px;background:var(--panel-border);border-radius:2px;overflow:hidden}.upload-progress-fill{height:100%;background:var(--teal);transition:width .3s ease}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 40px;text-align:center;color:var(--text-dim)}.empty-state-icon{font-size:56px;margin-bottom:16px;opacity:.25}.empty-state h3{font-size:16px;font-weight:700;color:var(--text-muted);margin-bottom:6px}.empty-state p{font-size:13px;color:var(--text-dim);margin-bottom:20px;max-width:300px;line-height:1.5}.loading-screen{display:flex;align-items:center;justify-content:center;flex:1;padding:80px}.media-renderer{display:flex;align-items:center;justify-content:center;width:100%;height:100%}.media-renderer img{max-width:100%;max-height:100%;object-fit:contain;border-radius:var(--radius-sm)}.media-renderer video{max-width:100%;max-height:100%;border-radius:var(--radius-sm)}.media-renderer audio{width:100%}.media-renderer-pdf{width:100%;height:100%;min-height:400px;border-radius:var(--radius-sm);border:none}.media-renderer-file{display:flex;flex-direction:column;align-items:center;gap:8px;padding:20px;background:var(--panel);border:1px solid var(--panel-border);border-radius:var(--radius-md);text-decoration:none;color:var(--text-muted);transition:all var(--transition)}.media-renderer-file:hover{border-color:var(--teal-muted);color:var(--teal);text-decoration:none}.media-renderer-file-icon{font-size:36px}.media-renderer-file-name{font-size:12px;font-weight:600;max-width:140px;text-align:center;word-break:break-all}