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

.page {
    padding: 32px;
}

.card {
    margin-top: 24px;
    padding: 24px;
    max-width: 700px;
    background: #111827;
    border: 1px solid #273449;
    border-radius: 16px;
}

pre {
    padding: 16px;
    background: #020617;
    border-radius: 12px;
    overflow: auto;
}