:root { font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', 'Apple Color Emoji', 'Segoe UI Emoji'; }
body { margin: 0; background: #0b0c10; color: #e5e7eb; }
main { max-width: 840px; margin: 40px auto; padding: 24px; background: #111827; border-radius: 16px; box-shadow: 0 10px 30px rgba(0,0,0,.35); }
h1, h2 { margin-top: 0; }
form div { margin-bottom: 12px; }
input, textarea, button { width: 100%; padding: 10px; border-radius: 10px; border: 1px solid #374151; background: #0f172a; color: #e5e7eb; }
button { cursor: pointer; background: #2563eb; border: none; font-weight: 600; }
button:hover { filter: brightness(1.1); }
.card { padding: 12px; border: 1px solid #374151; border-radius: 10px; margin-bottom: 8px; background: #0f172a; }
small { color: #9ca3af; }