* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #ffffff 0%, #ffffff 100%);
            color: white;
            overflow: hidden;
        }
        
        .container {
            display: flex;
            height: 100vh;
        }
        
        .sidebar {
            width: 300px;
            background: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(10px);
            padding: 20px;
            overflow-y: auto;
            border-right: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .main-content {
            flex: 1;
            position: relative;
        }
        
        .controls {
            background: rgba(0, 0, 0, 0.7);
            padding: 15px;
            border-radius: 10px;
            margin-bottom: 20px;
            backdrop-filter: blur(5px);
        }
        
        .file-input {
            margin-bottom: 20px;
        }
        
        .file-input input[type="file"] {
            width: 100%;
            padding: 10px;
            border: 2px dashed rgba(255, 255, 255, 0.3);
            border-radius: 8px;
            background: transparent;
            color: white;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .file-input input[type="file"]:hover {
            border-color: #9c0f66;
            background: rgba(76, 175, 80, 0.1);
        }
        
        .stats {
            background: rgba(255, 255, 255, 0.1);
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 20px;
        }
        
        .stats h3 {
            margin-bottom: 10px;
            color: #f52da1;
        }
        
        .stat-item {
            display: flex;
            justify-content: space-between;
            margin-bottom: 5px;
            padding: 5px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .layer-controls {
            margin-bottom: 20px;
        }
        
        .layer-controls h3 {
            margin-bottom: 10px;
            color: #db1cb2;
        }
        
        .slider-container {
            margin-bottom: 15px;
        }
        
        .slider-container label {
            display: block;
            margin-bottom: 5px;
            font-size: 14px;
        }
        
        .slider {
            width: 100%;
            height: 6px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.2);
            outline: none;
            -webkit-appearance: none;
        }
        
        .slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: #a50f55;
            cursor: pointer;
            box-shadow: 0 2px 10px rgba(76, 175, 80, 0.5);
        }
        
        .slider::-moz-range-thumb {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: #4CAF50;
            cursor: pointer;
            border: none;
            box-shadow: 0 2px 10px rgba(76, 175, 80, 0.5);
        }
        
        .view-controls {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }
        
        .btn {
            padding: 8px 16px;
            border: none;
            border-radius: 6px;
            background: linear-gradient(0deg, #7a7a7a, #585858);
            color: white;
            cursor: pointer;
            font-size: 12px;
            transition: all 0.3s ease;
            text-transform: uppercase;
            font-weight: bold;
        }
        
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(76, 175, 80, 0.4);
        }
        
        .btn.secondary {
            background: linear-gradient(45deg, #b30d81, #b41a81);
        }
        
        .btn.secondary:hover {
            box-shadow: 0 4px 15px rgba(255, 152, 0, 0.4);
        }
        
        #viewer {
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at center, #1a1a2e 0%, #16213e 100%);
        }
        
        .loading {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
            z-index: 100;
        }
        
        .loading .spinner {
            width: 50px;
            height: 50px;
            border: 5px solid rgba(255, 255, 255, 0.3);
            border-top: 5px solid #4CAF50;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin: 0 auto 20px;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .legend {
            background: rgba(0, 0, 0, 0.8);
            padding: 15px;
            border-radius: 8px;
            margin-top: 20px;
        }
        
        .legend h3 {
            margin-bottom: 10px;
            color: #2196F3;
        }
        
        .legend-item {
            display: flex;
            align-items: center;
            margin-bottom: 8px;
        }
        
        .legend-color {
            width: 20px;
            height: 4px;
            margin-right: 10px;
            border-radius: 2px;
        }
        
        .progress-bar {
            width: 100%;
            height: 6px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 3px;
            overflow: hidden;
            margin-top: 10px;
        }
        
        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, #4CAF50, #8BC34A);
            width: 0%;
            transition: width 0.3s ease;
        }