body {
    font-family: Arial, sans-serif;
    margin: 0; padding: 0;
    background: #fafafa;
    color: #222;
}
header {
    background: #000;
    color: #fff;
    padding: 30px;
    text-align: center;
}
.hero {
    background: #1a73e8;
    color: white;
    padding: 50px;
    text-align: center;
}
.section {
    padding: 25px;
}
.btn {
    display: inline-block;
    background: #ff5c5c;
    padding: 10px 18px;
    color: white;
    text-decoration: none;
    border-radius: 6px;
}
footer {
    text-align: center;
    padding: 15px;
    background: #eee;
    margin-top: 30px;
}