* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Helvetica Neue', Arial, sans-serif;
        }
        
        body {
            background-color: #f5f5f7;
            color: #333;
            line-height: 1.6;
            padding: 0;
            margin: 0;
        }
        
        .container {
            max-width: 100%;
            padding: 20px 15px;
        }
        
        header {
            text-align: center;
            padding: 25px 0;
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            color: white;
            border-radius: 0 0 20px 20px;
            margin-bottom: 25px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        
        h1 {
            font-size: 1.8rem;
            margin-bottom: 10px;
        }
        
        .subtitle {
            font-size: 1rem;
            opacity: 0.9;
            max-width: 500px;
            margin: 0 auto;
        }
        
        .category-tabs {
            display: flex;
            overflow-x: auto;
            padding: 10px 0;
            margin-bottom: 20px;
            scrollbar-width: none;
        }
        
        .category-tabs::-webkit-scrollbar {
            display: none;
        }
        
        .tab {
            padding: 10px 20px;
            background: white;
            border-radius: 30px;
            margin-right: 10px;
            white-space: nowrap;
            font-weight: 500;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .tab.active {
            background: #2575fc;
            color: white;
        }
        
        .websites-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        
        .website-card {
            background: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .website-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        
        .card-image {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        
        .card-tag {
            position: absolute;
            top: 15px;
            right: 15px;
            background: rgba(255,255,255,0.9);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        
        .card-content {
            padding: 20px;
        }
        
        .card-title {
            font-size: 1.2rem;
            margin-bottom: 8px;
            color: #222;
        }
        
        .card-description {
            font-size: 0.9rem;
            color: #666;
            margin-bottom: 15px;
        }
        
        .card-link {
            display: inline-block;
            background: #2575fc;
            color: white;
            padding: 8px 20px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.9rem;
            transition: background 0.3s ease;
        }
        
        .card-link:hover {
            background: #1a68e3;
        }
        
        .random-button {
            display: block;
            width: 100%;
            padding: 15px;
            background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
            color: white;
            border: none;
            border-radius: 16px;
            font-size: 1.1rem;
            font-weight: 600;
            margin: 30px 0;
            cursor: pointer;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        
        .random-button:active {
            transform: scale(0.98);
        }
        
        footer {
            text-align: center;
            padding: 30px 0 20px;
            color: #888;
            font-size: 0.9rem;
        }
        
        @media (min-width: 768px) {
            .websites-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .container {
                max-width: 700px;
                margin: 0 auto;
            }
        }
        
        @media (min-width: 1024px) {
            .websites-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            
            .container {
                max-width: 1000px;
            }
        }