* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    color: white;
    margin-bottom: 3rem;
    padding: 2rem 0;
}

header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

.sites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.site-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
    color: inherit;
    display: block;
}

.site-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.3);
}

.site-card .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.site-card h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #667eea;
}

.site-card p {
    color: #666;
    line-height: 1.6;
}

.site-card .tag {
    display: inline-block;
    background: #f0f0f0;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-top: 1rem;
    color: #555;
}

footer {
    text-align: center;
    color: white;
    padding: 2rem 0;
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .sites-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .container {
        padding: 1rem;
    }
}