:root {
  color-scheme: light dark;
  --bg: #f7f7f4;
  --ink: #18181b;
  --muted: #6d6d74;
  --line: #d8d8d2;
  --panel: #ffffff;
  --accent: #7c6bd9;
  --link: #6d5acb;
  --focus-ring: #5946bd;
  --focus-width: 3px;
  --focus-offset: 3px;
  --accent-soft: #ece8ff;
  --mark: #eeebff;
  --code: #eeeeea;
  --measure: 70ch;
  --motion-fast: 0.16s;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0f11;
    --ink: #f2f2f0;
    --muted: #a0a0a8;
    --line: #303034;
    --panel: #17171a;
    --accent: #c0b4ff;
    --link: #c0b4ff;
    --focus-ring: #c0b4ff;
    --accent-soft: #242033;
    --mark: #262238;
    --code: #1c1c20;
  }
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
}

a {
  color: inherit;
  text-decoration-color: var(--link);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--link);
}

:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: var(--focus-width) solid var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.skip-link {
  position: fixed;
  z-index: 1000;
  inset: 0.5rem auto auto 0.5rem;
  padding: 0.65rem 0.85rem;
  background: var(--ink);
  color: var(--bg);
  text-decoration: none;
  transform: translateY(-160%);
}

.skip-link:focus-visible {
  color: var(--bg);
  transform: translateY(0);
}

.site-header,
.site-width {
  width: min(100% - 2rem, 58rem);
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.15rem 2.25rem;
  font-size: 0.92rem;
}

.wordmark {
  font-size: 1.12rem;
  font-weight: 780;
  letter-spacing: 0;
  text-decoration: none;
}

.wordmark::after {
  content: none;
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.7rem 1rem;
}

.site-header nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--motion-fast) ease, text-decoration-color var(--motion-fast) ease;
}

.site-header nav a:hover,
.site-header nav a:focus-visible {
  color: var(--link);
  text-decoration: underline;
  text-decoration-color: var(--link);
}

@media (max-width: 42rem) {
  .site-header {
    align-items: flex-start;
    padding-bottom: 1.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}