body { background-color: #0f0f0f; color: #f1f1f1; font-family: sans-serif; line-height: 1.6; padding: 40px; max-width: 800px; margin: auto; }
h1 { color: #ffffff; }
.back-link { color: #3ea6ff; text-decoration: none; display: block; margin-bottom: 20px; }