body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #0f172a;
    color: #e5e7eb;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 16px;
}

.site-header {
    background: #020617;
    padding: 20px 0;
    text-align: center;
}

.site-title {
    margin: 0;
    font-size: 28px;
}

.site-subtitle {
    margin: 4px 0 0;
    font-size: 14px;
    color: #9ca3af;
}

.site-nav {
    background: #020617;
    border-top: 1px solid #1f2937;
    border-bottom: 1px solid #1f2937;
}

.site-nav a {
    color: #38bdf8;
    text-decoration: none;
    font-weight: bold;
    margin: 0 8px;
    display: inline-block;
    padding: 10px 0;
}

.site-nav a:hover {
    color: #fbbf24;
}

main {
    padding: 24px 0 40px;
}

.intro {
    margin-bottom: 24px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}

.card {
    background: #020617;
    border-radius: 10px;
    padding: 16px;
    border: 1px solid #1f2937;
}

.card h3 {
    margin-top: 0;
}

.btn {
    display: inline-block;
    margin-top: 10px;
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid #38bdf8;
    color: #38bdf8;
    text-decoration: none;
    font-size: 14px;
}

.btn:hover {
    border-color: #fbbf24;
    color: #fbbf24;
}

.site-footer {
    background: #020617;
    text-align: center;
    padding: 14px 0;
    font-size: 14px;
    border-top: 1px solid #1f2937;
}