body {
    margin: 0;
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

.container {
    width: 85%;
    margin: auto;
}

header {
    background: #0a192f;
    color: white;
    padding: 20px 0;
}

header h1 {
    display: inline;
}

nav {
    float: right;
}

nav a {
    color: white;
    margin-left: 20px;
    text-decoration: none;
}

.hero {
    background: #112240;
    color: white;
    padding: 100px 0;
    text-align: center;
}

.section {
    padding: 60px 0;
}

.grey {
    background: #f4f4f4;
}

.btn {
    background: #0077ff;
    color: white;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 5px;
}

footer {
    background: #0a192f;
    color: white;
    text-align: center;
    padding: 20px 0;
}