:root {
  --bg: #0f1419;
  --card: #1a2332;
  --text: #e8eef4;
  --accent: #3d9eff;
  --error: #ff6b6b;
  --ok: #5cdb95;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--card);
}
.brand { color: var(--accent); font-weight: 700; text-decoration: none; }
.top a { color: var(--text); margin-left: 1rem; }
.wrap { max-width: 720px; margin: 0 auto; padding: 2rem 1rem; }
.hero h1 { font-size: 1.75rem; }
.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  text-decoration: none;
  background: var(--card);
  color: var(--text);
  border: 1px solid #334;
}
.btn.primary { background: var(--accent); color: #000; border: none; }
.form label { display: block; margin-bottom: 1rem; }
.form input { width: 100%; padding: 0.5rem; margin-top: 0.25rem; }
.error { color: var(--error); }
.ok { color: var(--ok); }
.list { padding-left: 1.2rem; }
.hint { opacity: 0.75; font-size: 0.9rem; }
.lead { font-size: 1.15rem; }