:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #555555;
  --accent: #0b57d0;
  --border: #e5e5e5;
  --max: 42rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111111;
    --fg: #ededed;
    --muted: #b0b0b0;
    --accent: #8ab4f8;
    --border: #2a2a2a;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

a {
  color: var(--accent);
  text-underline-offset: 0.15em;
}

a:hover {
  text-decoration-thickness: 2px;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

.site-header {
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.brand {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--fg);
  text-decoration: none;
}

main {
  flex: 1;
  padding: 3rem 0;
}

h1 {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  line-height: 1.2;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.25rem;
  line-height: 1.3;
  margin: 2.25rem 0 0.75rem;
}

p,
ul {
  margin: 0 0 1rem;
}

ul {
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.35rem;
}

.lead {
  font-size: 1.1875rem;
  color: var(--muted);
}

.meta {
  color: var(--muted);
  font-size: 0.9375rem;
}

.links {
  list-style: none;
  padding: 0;
}

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9375rem;
}

.site-footer .container {
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  justify-content: space-between;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}