:root {
  --bg: #0b1220;
  --card: #141e30;
  --text: #e8eef7;
  --muted: #8b9cb3;
  --accent: #3b9eff;
  --border: #243044;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
.top {
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
  background: rgba(11, 18, 32, 0.9);
}
.brand { font-weight: 700; font-size: 1.1rem; }
.wrap { max-width: 560px; margin: 0 auto; padding: 1.5rem; }
.hero h1 { margin: 0 0 0.5rem; font-size: 1.75rem; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  margin: 1rem 0;
}
.card h2 { margin: 0 0 0.75rem; font-size: 1rem; }
.url-box {
  background: #0a1018;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  word-break: break-all;
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}
.btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.65rem 1.2rem;
  font-size: 1rem;
  cursor: pointer;
  width: 100%;
}
.btn:hover { filter: brightness(1.08); }
.nodes { list-style: none; padding: 0; margin: 0; }
.nodes li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}
.nodes li:last-child { border-bottom: none; }
code { color: var(--accent); font-size: 0.85rem; }
.hint.ok { color: #5dd39e; font-size: 0.9rem; }
.tag {
  display: inline-block;
  background: var(--border);
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  font-size: 0.85rem;
}