:root {
            --primary: #0693e3;
            --secondary: #0063dc;
            --text: #333;
            --bg: #f4f7f6;
            --white: #ffffff;
        }

        body {
            font-family: 'Arial', sans-serif;
            color: var(--text);
            line-height: 1.6;
            margin: 0;
            background-color: var(--bg);
        }

        header {
            background-color: var(--white);
            padding: 1rem 5%;
            border-bottom: 3px solid var(--primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        nav ul {
            list-style: none;
            display: flex;
            gap: 20px;
            margin: 0;
            padding: 0;
        }

        nav a {
            text-decoration: none;
            color: var(--text);
            font-weight: bold;
            font-size: 0.9rem;
        }

        .hero {
            height: 400px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-align: center;
        }

        .container {
            max-width: 1000px;
            margin: 40px auto;
            padding: 20px;
            background: var(--white);
            border-radius: 8px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        @media (max-width: 768px) {
            .container { grid-template-columns: 1fr; }
            header { flex-direction: column; }
        }

        footer {
            text-align: center;
            padding: 40px;
            font-size: 0.8rem;
        }

        .btn {
            display: inline-block;
            background: var(--primary);
            color: white;
            padding: 10px 20px;
            text-decoration: none;
            border-radius: 4px;
            margin-top: 10px;
        }