body { font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; margin: 0; padding: 0; }
.container { max-width: 900px; margin: 32px auto; padding: 0 16px; }
h1, h2 { margin: 16px 0; }
.field { margin-bottom: 12px; }
button { padding: 8px 14px; border: 1px solid #ddd; border-radius: 8px; cursor: pointer; }
.list { list-style: none; padding: 0; }
.card { background: #111; color: #f3f3f3; border-radius: 12px; padding: 12px 16px; margin-bottom: 12px; }
.hint { color: #666; font-size: 0.9em; }