.nav-link:hover, .nav-link.active {
            color: var(--primary-color);
            background-color: rgba(44, 125, 160, 0.1);
        }
        
       
        
        /* Color Preview */
        .color-preview {
            height: 200px;
            border-radius: 8px;
            margin-bottom: 1.5rem;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            transition: all 0.3s ease;
        }
        
        .color-details {
            background-color: var(--light-gray);
            border-radius: 8px;
            padding: 1.5rem;
            margin-top: 1.5rem;
            border: 1px solid var(--border-color);
        }
        
        .color-value {
            font-family: 'Courier New', monospace;
            background-color: white;
            padding: 0.5rem;
            border-radius: 4px;
            border: 1px solid #eee;
        }
        
        .copy-btn {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            padding: 0.4rem 0.75rem;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .copy-btn:hover {
            background-color: var(--light-gray);
        }
        
        /* Slider Styles */
        .slider-container {
            margin-bottom: 1.5rem;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.5rem;
        }
        
        .slider-value {
            font-weight: 600;
            color: var(--primary-color);
        }
        
        .slider {
            -webkit-appearance: none;
            width: 100%;
            height: 8px;
            border-radius: 4px;
            background: #ddd;
            outline: none;
        }
        
        .slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary-color);
            cursor: pointer;
            border: 2px solid white;
            box-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        
        .slider::-moz-range-thumb {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary-color);
            cursor: pointer;
            border: 2px solid white;
            box-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        
        /* Related Tools */
        .related-tools {
            background-color: white;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
        }
        
        .related-title {
            font-weight: 600;
            margin-bottom: 1.25rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid var(--border-color);
            color: var(--primary-color);
        }
        
        .related-tool {
            display: flex;
            align-items: center;
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--border-color);
            transition: background-color 0.3s;
        }
        
        .related-tool:hover {
            background-color: var(--light-gray);
        }
        
        .related-tool:last-child {
            border-bottom: none;
        }
        
        .related-icon {
            width: 36px;
            height: 36px;
            border-radius: 6px;
            background-color: rgba(44, 125, 160, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            color: var(--primary-color);
        }
        
        .related-name {
            font-weight: 500;
            margin-bottom: 0.25rem;
        }
        
        .related-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        /* Ad Container */
        .ad-container {
            background-color: var(--light-gray);
            border-radius: 8px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            text-align: center;
            border: 1px solid var(--border-color);
        }
        
        .ad-label {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 0.5rem;
        }
        
        .ad-placeholder {
            width: 100%;
            height: 250px;
            background-color: #f0f4f8;
            border: 1px dashed #dee2e6;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-weight: 500;
        }
        
        /* Footer */
        .footer {
            background-color: var(--light-gray);
            padding: 3rem 0;
            margin-top: 3rem;
            border-top: 1px solid var(--border-color);
        }
        
        /* Security Warning */
        .security-warning {
            background-color: rgba(255, 193, 7, 0.1);
            border-left: 4px solid var(--warning-color);
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
            margin: 2rem 0;
        }
   
        
        /* Hash Comparison */
        .hash-comparison {
            display: flex;
            justify-content: space-between;
            margin: 2rem 0;
            flex-wrap: wrap;
        }
        
        .hash-type {
            flex: 1;
            min-width: 250px;
            padding: 1rem;
            margin: 0.5rem;
            border-radius: 8px;
            background-color: white;
            border: 1px solid var(--border-color);
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        
        .hash-type h4 {
            color: var(--primary-color);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        
        .hash-type ul {
            padding-left: 1.2rem;
        }
        
        .hash-type li {
            margin-bottom: 0.5rem;
        }
        
        .sha1-badge {
            background-color: var(--warning-color);
            color: black;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-left: 0.5rem;
        }
        
        .sha256-badge {
            background-color: #28a745;
            color: white;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-left: 0.5rem;
        }
        
        .crypto-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        
        .crypto-table th, .crypto-table td {
            padding: 0.75rem;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        
        .crypto-table th {
            background-color: var(--light-gray);
            font-weight: 600;
        }
        
        .crypto-table tr:hover {
            background-color: rgba(44, 125, 160, 0.05);
        }
        
        /* Toast notifications */
        .toast-container {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 1050;
        }
        
        .toast {
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15);
            padding: 1rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            max-width: 350px;
            transform: translateY(100px);
            opacity: 0;
            transition: all 0.3s ease;
        }
        
        .toast.show {
            transform: translateY(0);
            opacity: 1;
        }
        
        .toast-success {
            border-left: 4px solid #2ecc71;
        }
        
        .toast-error {
            border-left: 4px solid #e74c3c;
        }
        
        .toast-info {
            border-left: 4px solid #3498db;
        }
        
        .toast-icon {
            font-size: 1.5rem;
        }
        
        .toast-success .toast-icon {
            color: #2ecc71;
        }
        
        .toast-error .toast-icon {
            color: #e74c3c;
        }
        
        .toast-info .toast-icon {
            color: #3498db;
        }
        
        /* Responsive Adjustments */
        @media (max-width: 768px) {
            .color-preview {
                height: 150px;
            }
            
            .tool-card {
                padding: 1.5rem;
            }
        }