:root {
  --bg: #0f1419;
  --fg: #e7ecf1;
  --muted: #9aa7b2;
  --accent: #3b82f6;
  --card: #1a222c;
  --error: #f87171;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: #111820;
  border-bottom: 1px solid #243041;
}
.brand a { font-weight: 600; color: var(--fg); }
nav a { margin-left: 14px; color: var(--muted); }
nav a:hover { color: var(--fg); }

.container { max-width: 900px; margin: 32px auto; padding: 0 20px; }

.stack label { display: block; margin-bottom: 12px; }
.stack input {
  display: block; width: 100%; max-width: 420px;
  padding: 8px 10px; border-radius: 6px; border: 1px solid #334155;
  background: #0b1016; color: var(--fg);
}
button {
  padding: 8px 14px; border-radius: 6px; border: 0;
  background: var(--accent); color: white; cursor: pointer;
}
button.link { background: transparent; color: var(--error); padding: 0; }
.inline { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }

.error { color: var(--error); }
.banner {
  padding: 12px 14px; border-radius: 8px; background: var(--card);
  border: 1px solid #334155; margin: 16px 0;
}
.banner.warn { border-color: #f59e0b; }
.table {
  width: 100%; border-collapse: collapse; margin-top: 12px;
  font-size: 14px;
}
.table th, .table td {
  border-bottom: 1px solid #243041; padding: 8px; text-align: left;
}
code { background: #111820; padding: 2px 6px; border-radius: 4px; }
.list { line-height: 1.8; }