:root {
            --primary: #007bff;
            --secondary: #00a5d4;
            --dark: #000;
            --light: #f8f9fa;
        }
        * { box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; line-height: 1.6; margin: 0; color: #333; }
        .container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
        
        /* Header */
        header { background: #fff; padding: 20px 0; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
        .header-content { display: flex; align-items: center; justify-content: space-between; }
        .nav-menu { list-style: none; display: flex; gap: 20px; margin: 0; padding: 0; }
        .nav-menu a { text-decoration: none; color: var(--primary); font-weight: bold; }
        
        /* Hero */
        .hero { height: 300px; background: linear-gradient(135deg, var(--secondary), var(--primary)); display: flex; align-items: center; justify-content: center; color: white; text-align: center; margin-bottom: 40px; }
        
        /* Grid Layout */
        .post-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 30px; margin-bottom: 50px; }
        .post-card { border: 1px solid #ddd; border-radius: 8px; overflow: hidden; transition: transform 0.2s; background: #fff; }
        .post-card:hover { transform: translateY(-5px); }
        .card-thumb { width: 100%; height: 180px; background: #eee; display: flex; align-items: center; justify-content: center; color: #999; font-size: 0.8em; }
        .card-body { padding: 15px; }
        .card-title { font-size: 1.25em; margin: 10px 0; }
        
        /* Footer */
        footer { background: var(--dark); color: #fff; padding: 30px 0; text-align: center; }
        
        @media (max-width: 768px) {
            .nav-menu { display: none; }
        }