* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    color: #333;
    line-height: 1.6;
}

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

header {
    background: #0a1f44;
    color: #fff;
    padding: 20px 0;
}

header h1 {
    display: inline-block;
}

nav {
    float: right;
}

nav a {
    color: #fff;
    margin-left: 20px;
    text-decoration: none;
    font-weight: bold;
}

.hero {
    background: linear-gradient(to right, #0a1f44, #163d7a);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.hero h2 {
    font-size: 36px;
}

.hero p {
    margin: 20px 0;
    font-size: 18px;
}

.btn {
    display: inline-block;
    background: #ff9800;
    color: #fff;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 5px;
}

.section {
    padding: 60px 0;
}

.section.light {
    background: #f4f4f4;
}

.cards {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.card {
    background: #fff;
    padding: 25px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    flex: 1;
}

footer {
    background: #0a1f44;
    color: #fff;
    text-align: center;
    padding: 15px 0;
    margin-top: 40px;
}

@media (max-width: 768px) {
    nav {
        float: none;
        text-align: center;
        margin-top: 10px;
    }

    .cards {
        flex-direction: column;
    }
}