:root {
  --bg: #ffffff;
  --text: #111827;
  --muted: #4b5563;
  --border: #e5e7eb;
  --link: #0f766e;
  --link-hover: #115e59;

  --maxw: 68ch;
  --pad: 1.25rem;
  --leading: 1.6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f14;
    --text: #e5e7eb;
    --muted: #a1a1aa;
    --border: #1f2937;
    --link: #2dd4bf;
    --link-hover: #5eead4;
  }
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  line-height: var(--leading);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2.25rem var(--pad) 2.5rem;
}

.site-header {
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 2rem;
  padding-top: 1.25rem;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

h1 {
  font-size: clamp(1.9rem, 3.2vw, 2.4rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.35rem 0;
}

h2 {
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  margin: 1.6rem 0 0.75rem 0;
}

p {
  margin: 0.75rem 0;
}

.tagline {
  margin: 0.35rem 0 0.85rem 0;
  color: var(--muted);
  font-size: 1.02rem;
}

a {
  color: var(--link);
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

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

a:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--link) 35%, transparent);
  outline-offset: 2px;
  border-radius: 6px;
}

.items {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
}

.items > li {
  padding: 0.85rem 0;
  border-top: 1px solid var(--border);
}

.items > li:first-child {
  border-top: none;
}

.subitems {
  margin: 0.4rem 0 0;
  padding-left: 1.15rem;
}

.subitems li {
  margin: 0.25rem 0;
}

.row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.muted {
  color: var(--muted);
  font-size: 0.95rem;
  white-space: nowrap;
}

@media (max-width: 520px) {
  .container {
    padding-top: 1.75rem;
  }

  .row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
  }

  .muted {
    white-space: normal;
  }
}