body { font-family: system-ui, Segoe UI, Arial, sans-serif; margin: 0; background: #0f1419; color: #e8ecf1; }
.wrap { max-width: 680px; margin: 48px auto; padding: 0 16px; }
h1 { font-weight: 650; letter-spacing: -0.01em; }
a { color: #6cb6ff; text-decoration: none; }
a:hover { text-decoration: underline; }
label { display: block; margin: 10px 0; }
input { padding: 6px 8px; margin-left: 6px; }
button { padding: 7px 14px; margin-top: 8px; cursor: pointer; }
nav { margin-top: 16px; opacity: 0.92; }
.muted { opacity: 0.65; font-size: 0.9em; }