body {
    font-family: 'Montserrat', sans-serif;
    background-color: #0B1F3A;
    color: #ffffff;
    margin: 0;
    padding: 0;
}
header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 40px; background: #071730;
}
header img { height: 50px; }
nav a { color: #fff; margin-left: 20px; text-decoration: none; }
.hero { text-align: center; padding: 100px 20px; }
.hero h2 { font-size: 36px; }
.hero p { font-size: 18px; }
section { padding: 60px 40px; max-width: 1000px; margin: 0 auto; }
section h3 { font-size: 28px; margin-bottom: 20px; }
footer { text-align: center; padding: 30px; background: #071730; font-size: 14px; }
.btn { background: #ffffff; color: #071730; padding: 10px 25px; border: none; border-radius: 4px; margin: 5px; cursor: pointer; }
form { display: flex; flex-direction: column; max-width: 400px; margin: 0 auto; }
form input, form textarea { padding: 10px; margin: 5px 0; border: none; border-radius: 4px; }
form button { align-self: flex-start; }