:root{--bg-primary:#121417;--bg-secondary:#1a1d21;--bg-tertiary:#22262b;--bg-card:#1c2025;--bg-card-hover:#252a30;--bg-glass:#1c2025b3;--text-primary:#e8e8f0;--text-secondary:#9898b0;--text-muted:#6868808a;--accent:#2e7b8e;--accent-light:#52a0b4;--accent-glow:#2e7b8e4d;--accent-gradient:linear-gradient(135deg, #2e7b8e, #52a0b4);--success:#00cec9;--success-glow:#00cec933;--warning:#fdcb6e;--danger:#ff6b6b;--border-color:#ffffff0f;--border-subtle:#ffffff08;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--radius-full:999px;--shadow-sm:0 2px 8px #0003;--shadow-md:0 4px 16px #0000004d;--shadow-lg:0 8px 32px #0006;--shadow-glow:0 0 20px var(--accent-glow);--transition-fast:.15s ease;--transition-normal:.25s ease;--transition-slow:.4s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;overflow:hidden}body{background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.app-layout{width:100vw;height:100vh;display:flex}.sidebar{background:var(--bg-secondary);border-right:1px solid var(--border-color);flex-direction:column;width:420px;min-width:420px;height:100vh;display:flex;overflow:hidden}.sidebar-header{padding:var(--space-lg);border-bottom:1px solid var(--border-color);-webkit-user-select:none;user-select:none}.sidebar-header h1{letter-spacing:-.3px;background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:2px;font-size:18px;font-weight:700}.sidebar-header p{color:var(--text-secondary);font-size:12px;font-weight:400}.sidebar-content{min-height:0;padding:var(--space-lg);gap:var(--space-lg);flex-direction:column;flex:1;display:flex;overflow-y:auto}.sidebar-content::-webkit-scrollbar{width:4px}.sidebar-content::-webkit-scrollbar-track{background:0 0}.sidebar-content::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:var(--radius-full)}.panel{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);flex-shrink:0;overflow:hidden}.panel-header{align-items:center;gap:var(--space-sm);padding:var(--space-md) var(--space-md);border-bottom:1px solid var(--border-subtle);-webkit-user-select:none;user-select:none;display:flex}.panel-header-icon{border-radius:var(--radius-md);background:var(--accent-gradient);color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.panel-header-icon svg{width:16px;height:16px}.panel-header h3{color:var(--text-primary);font-size:13px;font-weight:600}.panel-header span{color:var(--text-secondary);font-size:11px;font-weight:400}.panel-body{padding:var(--space-md)}.article-list{gap:var(--space-sm);flex-direction:column;max-height:200px;display:flex;overflow-y:auto}.article-item{align-items:center;gap:var(--space-sm);border-radius:var(--radius-md);border:1px solid var(--border-color);background:var(--bg-tertiary);cursor:pointer;transition:all var(--transition-fast);-webkit-user-select:none;user-select:none;padding:10px 12px;display:flex}.article-item:hover{background:var(--bg-card-hover);border-color:#2e7b8e4d}.article-item.active{border-color:var(--accent);box-shadow:var(--shadow-glow);background:#2e7b8e1f}.article-item-icon{border-radius:var(--radius-sm);background:var(--bg-secondary);width:36px;height:36px;color:var(--accent-light);flex-shrink:0;justify-content:center;align-items:center;display:flex}.article-item-info{flex:1;min-width:0}.article-item-info h4{white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.article-item-info p{color:var(--text-secondary);font-size:11px}.article-empty{text-align:center;padding:var(--space-lg) var(--space-md);color:var(--text-secondary);font-size:12px}.article-empty svg{margin-bottom:var(--space-sm);opacity:.4}.drop-zone{border:2px dashed var(--border-color);border-radius:var(--radius-lg);padding:var(--space-xl) var(--space-md);text-align:center;cursor:pointer;transition:all var(--transition-normal);position:relative;overflow:hidden}.drop-zone:before{content:"";background:var(--accent-gradient);opacity:0;transition:opacity var(--transition-normal);position:absolute;inset:0}.drop-zone:hover{border-color:var(--accent)}.drop-zone:hover:before{opacity:.04}.drop-zone.dragging{border-color:var(--accent);transform:scale(1.01)}.drop-zone.dragging:before{opacity:.08}.drop-zone.has-file{border-color:var(--success);border-style:solid}.drop-zone-icon{width:48px;height:48px;margin:0 auto var(--space-md);border-radius:var(--radius-lg);background:var(--bg-tertiary);color:var(--accent-light);z-index:1;justify-content:center;align-items:center;display:flex;position:relative}.drop-zone h4{z-index:1;margin-bottom:4px;font-size:13px;font-weight:600;position:relative}.drop-zone p{color:var(--text-secondary);z-index:1;font-size:11px;position:relative}.drop-zone .file-info{align-items:center;gap:var(--space-sm);z-index:1;justify-content:center;display:flex;position:relative}.drop-zone .file-info .file-name{color:var(--success);font-size:12px;font-weight:500}.drop-zone .remove-file{color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-sm);transition:color var(--transition-fast);background:0 0;border:none;align-items:center;padding:2px;display:flex}.drop-zone .remove-file:hover{color:var(--danger)}.btn{justify-content:center;align-items:center;gap:var(--space-sm);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);-webkit-user-select:none;user-select:none;white-space:nowrap;border:none;padding:10px 20px;font-family:inherit;font-size:13px;font-weight:600;display:inline-flex}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--accent-gradient);color:#fff;box-shadow:var(--shadow-glow)}.btn-primary:hover:not(:disabled){box-shadow:0 0 30px var(--accent-glow);transform:translateY(-1px)}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover:not(:disabled){background:var(--bg-card-hover);border-color:#ffffff1a}.btn-ghost{color:var(--text-secondary);background:0 0;padding:6px 10px}.btn-ghost:hover{color:var(--text-primary);background:var(--bg-tertiary)}.btn-danger{color:var(--danger);background:#ff6b6b1a;border:1px solid #ff6b6b33}.btn-danger:hover:not(:disabled){background:#ff6b6b33}.btn-block{width:100%}.btn-lg{border-radius:var(--radius-lg);padding:14px 28px;font-size:14px}.position-controls{gap:var(--space-md);flex-direction:column;display:flex}.control-row{align-items:center;gap:var(--space-sm);display:flex}.control-row label{color:var(--text-secondary);flex-shrink:0;width:78px;font-size:12px;font-weight:500}.control-row input[type=range]{appearance:none;background:var(--bg-tertiary);border-radius:var(--radius-full);outline:none;flex:1;height:4px}.control-row input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);cursor:pointer;width:14px;height:14px;box-shadow:0 0 8px var(--accent-glow);border-radius:50%}.control-row .value-display{color:var(--accent-light);text-align:right;font-variant-numeric:tabular-nums;width:50px;font-size:11px;font-weight:600}.control-row .value-input{color:var(--accent-light);text-align:right;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-xs);font-variant-numeric:tabular-nums;width:50px;transition:border-color var(--transition-fast);outline:none;padding:2px 4px;font-size:11px;font-weight:600}.control-row .value-input:focus{border-color:var(--accent)}.control-row .value-input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.control-row .value-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.control-row .value-input[type=number]{-moz-appearance:textfield}.viewport-container{background:radial-gradient(circle,#3a95aa 0%,#1e5461 100%);flex:1;position:relative;overflow:hidden}.viewport-toolbar{top:var(--space-md);z-index:10;gap:var(--space-xs);padding:var(--space-xs);background:var(--bg-glass);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-color);border-radius:var(--radius-full);display:flex;position:absolute;left:50%;transform:translate(-50%)}.viewport-toolbar button{width:36px;height:36px;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;display:flex}.viewport-toolbar button:hover{color:var(--text-primary);background:var(--bg-tertiary)}.viewport-toolbar button.active{background:var(--accent);color:#fff}.viewport-info{bottom:var(--space-md);left:var(--space-md);z-index:10;gap:var(--space-sm);display:flex;position:absolute}.viewport-badge{background:var(--bg-glass);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:var(--radius-full);color:var(--text-secondary);-webkit-user-select:none;user-select:none;align-items:center;gap:4px;padding:4px 10px;font-size:11px;display:flex}.viewport-badge .dot{background:var(--success);border-radius:50%;width:6px;height:6px;animation:2s infinite pulse-dot}@keyframes pulse-dot{0%,to{opacity:1}50%{opacity:.4}}.viewport-empty{color:var(--text-secondary);-webkit-user-select:none;user-select:none;flex-direction:column;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.viewport-empty-icon{border-radius:var(--radius-xl);background:var(--bg-secondary);width:80px;height:80px;margin-bottom:var(--space-lg);color:var(--text-muted);justify-content:center;align-items:center;display:flex}.viewport-empty h2{color:var(--text-primary);margin-bottom:var(--space-sm);font-size:18px;font-weight:600}.viewport-empty p{text-align:center;max-width:400px;font-size:13px;line-height:1.6}.export-actions{gap:var(--space-sm);flex-direction:column;display:flex}.export-preview{gap:var(--space-sm);margin-bottom:var(--space-md);grid-template-columns:repeat(2,1fr);display:grid}.export-preview-thumb{aspect-ratio:4/3;border-radius:var(--radius-sm);background:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-muted);justify-content:center;align-items:center;font-size:10px;display:flex}.modal-overlay{-webkit-backdrop-filter:blur(8px);z-index:100;background:#0009;justify-content:center;align-items:center;animation:.2s modal-fade-in;display:flex;position:fixed;inset:0}@keyframes modal-fade-in{0%{opacity:0}to{opacity:1}}.modal{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:var(--space-xl);width:100%;max-width:480px;box-shadow:var(--shadow-lg);animation:.3s modal-slide-up}@keyframes modal-slide-up{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.modal h2{margin-bottom:var(--space-lg);font-size:18px;font-weight:700}.modal-actions{gap:var(--space-sm);margin-top:var(--space-lg);justify-content:flex-end;display:flex}.form-group{gap:var(--space-xs);margin-bottom:var(--space-md);flex-direction:column;display:flex}.form-group label{color:var(--text-secondary);font-size:12px;font-weight:500}.form-input{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);transition:border-color var(--transition-fast);outline:none;padding:10px 14px;font-family:inherit;font-size:13px}.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.form-input::placeholder{color:var(--text-muted)}.toast-container{top:var(--space-lg);right:var(--space-lg);z-index:200;gap:var(--space-sm);flex-direction:column;display:flex;position:fixed}.toast{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);align-items:center;gap:var(--space-sm);min-width:280px;padding:12px 18px;font-size:13px;animation:.3s toast-in;display:flex}.toast.success{border-color:#00cec94d}.toast.error{border-color:#ff6b6b4d}@keyframes toast-in{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}.spinner{border:2px solid var(--border-color);border-top-color:var(--accent);border-radius:50%;width:20px;height:20px;animation:.6s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--accent)}.category-header{cursor:pointer;border-radius:var(--radius-sm);transition:background var(--transition-fast), color var(--transition-fast);-webkit-user-select:none;user-select:none;background:0 0;justify-content:space-between;align-items:center;margin:16px 0 8px;padding:6px 8px;display:flex}.category-header:hover{background:var(--bg-tertiary);color:var(--text-primary)}.category-header h4{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;transition:color var(--transition-fast);margin:0;font-size:11px}.category-header:hover h4{color:var(--text-primary)}.category-header-icon{color:var(--text-secondary);transition:color var(--transition-fast);align-items:center;display:flex}.category-header:hover .category-header-icon{color:var(--text-primary)}