body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: #0f172a;
    color: #e2e8f0;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1000px;
    margin: auto;
    padding: 80px 0;
}

header {
    background: #0f172a;
    border-bottom: 1px solid #1e293b;
    position: sticky;
    top: 0;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

nav a {
    margin-left: 20px;
    text-decoration: none;
    color: #cbd5e1;
    font-size: 14px;
}

nav a:hover {
    color: #ffffff;
}

h1, h2 {
    color: #ffffff;
}

.section {
    border-bottom: 1px solid #1e293b;
}

.footer {
    background: #0b1220;
    text-align: center;
    padding: 30px 0;
    font-size: 14px;
    color: #94a3b8;
}