:root {
  --bg: #0b1020;
  --card: #121a33;
  --text: #e8eefc;
  --muted: rgba(232, 238, 252, 0.75);
  --border: rgba(232, 238, 252, 0.12);
  --accent: #4aa3ff;
  --good: #27d17f;
  --warn: #ffcc66;
  --bad: #ff5c75;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--sans);
  background:
    radial-gradient(1200px 700px at 20% -10%, rgba(74, 163, 255, 0.35), transparent 60%),
    radial-gradient(900px 600px at 95% 5%, rgba(39, 209, 127, 0.22), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 16px 80px;
}

header {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
  margin-bottom: 18px;
}

h1 {
  margin: 0;
  font-size: 22px;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.pill {
  display: inline-block;
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: flex-end;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(74, 163, 255, 0.28);
  background: rgba(74, 163, 255, 0.12);
  color: var(--text);
  padding: 7px 12px;
  border-radius: 10px;
  font-weight: 650;
  font-size: 13px;
  text-decoration: none;
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.btn:hover {
  background: rgba(74, 163, 255, 0.18);
  border-color: rgba(74, 163, 255, 0.42);
  text-decoration: none;
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 900px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

.card {
  background: rgba(18, 26, 51, 0.85);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 14px;
}

h2 {
  margin: 0 0 10px;
  font-size: 16px;
}

h3 {
  margin: 14px 0 6px;
  font-size: 14px;
}

ul {
  margin: 8px 0 0 18px;
  padding: 0;
}

li {
  margin: 6px 0;
}

code,
pre {
  font-family: var(--mono);
}

code {
  background: rgba(232, 238, 252, 0.08);
  border: 1px solid rgba(232, 238, 252, 0.1);
  padding: 1px 6px;
  border-radius: 7px;
}

pre {
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid rgba(232, 238, 252, 0.1);
  border-radius: 12px;
  padding: 10px 12px;
  overflow: auto;
  color: rgba(232, 238, 252, 0.92);
}

.callout {
  border-left: 4px solid var(--accent);
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(74, 163, 255, 0.1);
  border: 1px solid rgba(74, 163, 255, 0.2);
  margin: 10px 0;
}

.ok {
  border-left-color: var(--good);
  background: rgba(39, 209, 127, 0.1);
  border-color: rgba(39, 209, 127, 0.22);
}

.warn {
  border-left-color: var(--warn);
  background: rgba(255, 204, 102, 0.1);
  border-color: rgba(255, 204, 102, 0.22);
}

.bad {
  border-left-color: var(--bad);
  background: rgba(255, 92, 117, 0.1);
  border-color: rgba(255, 92, 117, 0.22);
}

.k {
  color: rgba(232, 238, 252, 0.85);
  font-weight: 600;
}

footer {
  margin-top: 18px;
  color: var(--muted);
  font-size: 12px;
}

.toc a {
  display: inline-block;
  margin: 2px 10px 2px 0;
}