:root {
            --primary: #0072ef;
            --dark: #00112e;
            --text: #333;
            --light: #f7f7f7;
        }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; margin: 0; line-height: 1.6; color: var(--text); }
        #top-bar { background: #000; color: #fff; padding: 10px 0; text-align: center; }
        #top-bar a { color: #fff; text-decoration: underline; font-weight: bold; }
        header { padding: 20px 0; border-bottom: 1px solid #eee; }
        .container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
        .header-row { display: flex; justify-content: space-between; align-items: center; }
        nav ul { list-style: none; display: flex; gap: 20px; padding: 0; }
        nav a { text-decoration: none; color: #000; font-weight: 500; }
        .hero { height: 600px; display: flex; align-items: center; justify-content: center; background: #00112e; color: #fff; text-align: center; }
        .hero h2 { font-size: 3rem; margin-bottom: 20px; }
        .grid-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; margin-top: -50px; padding: 0 20px; }
        .feature-item { background: var(--primary); padding: 30px; color: #fff; border-radius: 8px; }
        img { max-width: 100%; height: auto; }
        .section { padding: 80px 0; }
        .button { display: inline-block; padding: 12px 30px; background: var(--primary); color: #fff; text-decoration: none; border-radius: 50px; font-weight: bold; }
        footer { background: var(--light); padding: 40px 0; margin-top: 50px; text-align: center; font-size: 0.9rem; }
        @media (max-width: 768px) { nav { display: none; } .hero h2 { font-size: 2rem; } }