:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --ink: #0a0a0a;
  --mute: #9a9a9a;
  --line: #ececec;
  --soft: #f4f4f4;
  --inverse: #ffffff;
  --font: 'Outfit', ui-sans-serif, system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a;
    --ink: #f4f4f4;
    --mute: #8a8a8a;
    --line: #222222;
    --soft: #141414;
    --inverse: #0a0a0a;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--ink);
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(640px, 100%);
  margin: 0 auto;
  padding: 22px 24px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.site-nav a {
  text-decoration: none;
}

.site-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.site-nav__mark {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--ink);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ink) 16%, transparent);
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--mute);
}

.site-nav__links a {
  color: inherit;
  transition: color 0.15s ease;
}

.site-nav__links a:hover,
.site-nav__links a[aria-current='page'] {
  color: var(--ink);
}

.doc-main {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.doc-main .eyebrow {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 12px;
}

.doc-main h1 {
  font-size: clamp(32px, 8vw, 40px);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin: 0 0 8px;
}

.doc-main .meta {
  color: var(--mute);
  font-size: 14px;
  margin: 0 0 28px;
}

.doc-main .summary {
  font-size: 16px;
  margin: 0 0 40px;
  color: color-mix(in srgb, var(--ink) 80%, transparent);
}

.doc-main h2 {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 36px 0 12px;
}

.doc-main p {
  margin: 0 0 12px;
  font-size: 16px;
}

.doc-main ul {
  margin: 8px 0 0;
  padding-left: 1.25rem;
}

.doc-main li {
  margin: 0 0 10px;
}

.doc-main footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--mute);
}

.doc-main footer a {
  color: var(--ink);
}

@media (max-width: 520px) {
  .site-nav__links {
    gap: 12px;
    font-size: 12px;
  }
}