body {
    margin: 0;
    font-family: system-ui, sans-serif;
    background: #0e1117;
    color: #e6edf3;
}
.navbar {
    display: flex;
    justify-content: space-between;
    padding: 20px 40px;
    background: #161b22;
}
.container {
    padding: 60px 80px;
    max-width: 1100px;
    margin: auto;
}
.hero h1 {
    font-size: 42px;
}