*, *::before, *::after {
  box-sizing: border-box;
}

:root {
  color-scheme: dark;
  --bg: #0f1117;
  --bg-alt: #1a1d27;
  --surface: #242836;
  --text: #e7e9ef;
  --muted: #a4a9b7;
  --accent: #f97316;
  --accent-hover: #fb923c;
  --border: #34394d;
  --code-bg: #0b0d13;
  --max-width: 840px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "SF Mono", "Fira Code", Menlo, Consolas, monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font: 1rem/1.68 var(--font);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-hover);
  text-underline-offset: 0.18em;
}

a:hover {
  color: #fdba74;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.55rem 1rem;
  color: #0b0d13;
  background: var(--accent);
  font-weight: 700;
}

.skip-link:focus {
  left: 0;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: rgba(15, 17, 23, 0.96);
  backdrop-filter: blur(10px);
}

.nav-inner,
.page,
.footer-inner {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.nav-inner {
  min-height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  color: var(--text);
  font-weight: 750;
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.9rem;
}

.nav-links a {
  color: var(--muted);
}

.page {
  padding-block: 4rem 5rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font: 700 0.78rem/1.4 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.18;
  letter-spacing: -0.02em;
}

h1 {
  max-width: 760px;
  margin: 0 0 1rem;
  font-size: clamp(2.25rem, 7vw, 4rem);
}

h2 {
  margin: 3rem 0 0.8rem;
  font-size: clamp(1.55rem, 4vw, 2.1rem);
}

h3 {
  margin: 2rem 0 0.6rem;
  font-size: 1.2rem;
}

p,
ul,
ol,
table,
pre,
.note,
.diagram {
  margin: 0 0 1.25rem;
}

.lede {
  max-width: 730px;
  color: #cdd1db;
  font-size: 1.2rem;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  margin: 1.5rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.88rem;
}

code {
  padding: 0.1em 0.35em;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-alt);
  font-family: var(--mono);
  font-size: 0.9em;
}

pre {
  overflow-x: auto;
  padding: 1.1rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--code-bg);
  color: var(--text);
  font: 0.88rem/1.6 var(--mono);
}

pre code {
  padding: 0;
  border: 0;
  background: transparent;
  font-size: inherit;
}

.note {
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  background: var(--bg-alt);
}

.diagram {
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-alt);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  padding: 0.7rem 0.75rem;
  border: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface);
}

tbody tr:nth-child(even) {
  background: var(--bg-alt);
}

.related {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 3rem;
}

.related a {
  display: block;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-alt);
  text-decoration: none;
}

.related strong,
.related span {
  display: block;
}

.related span {
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
}

.footer-inner {
  padding-block: 2rem;
}

@media (max-width: 640px) {
  .nav-inner {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 0.75rem;
  }

  .page {
    padding-top: 2.5rem;
  }

  .related {
    grid-template-columns: 1fr;
  }

  table {
    display: block;
    overflow-x: auto;
  }
}