body {
    background: #0d1117;
    color: white;
    font-family: Arial;
}

.hero {
    padding: 120px 0;
    background: linear-gradient(135deg, #0d1117, #161b22);
}

.section {
    padding: 80px 0;
}

.dark {
    background: #161b22;
}

.tagline {
    color: #00aaff;
}

.btn-primary {
    background: #00aaff;
    border: none;
}