body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f4f6f9;
    color: #333;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
}

.header {
    background: #003366;
    color: white;
    padding: 15px 0;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header nav a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
    font-size: 15px;
}

.header nav a:hover {
    text-decoration: underline;
}

.hero {
    background: linear-gradient(to right, #004080, #0066cc);
    color: white;
    padding: 80px 20px;
    text-align: center;
}

.btn {
    display: inline-block;
    background: #ff9900;
    color: white;
    padding: 10px 20px;
    margin-top: 20px;
    text-decoration: none;
    border-radius: 5px;
}

.content {
    padding: 50px 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.footer {
    background: #003366;
    color: white;
    text-align: center;
    padding: 15px 0;
    margin-top: 40px;
}