:root {
  color-scheme: light dark;
  --bg: #f0f5f1;
  --fg: #212121;
  --muted: #424242;
  --accent: #2e7d32;
  --accent-text: #1b5e20;
  --border: #bdbdbd;
  --card: #fafafa;
  --focus: #1565c0;
  --font-body: "Figtree", "Segoe UI", system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1611;
    --fg: #e8f0eb;
    --muted: #bdbdbd;
    --accent: #81c784;
    --accent-text: #a5d6a7;
    --border: #6e6e6e;
    --card: #1a2420;
    --focus: #64b5f6;
  }
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  line-height: 1.65;
  color: var(--fg);
  background: var(--bg);
}

a {
  color: var(--accent-text);
}

a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 100;
  padding: 0.65rem 1rem;
  background: var(--card);
  color: var(--fg);
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  border: 2px solid var(--focus);
}

.skip-link:focus {
  top: 1rem;
}

header,
main,
footer {
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

header {
  padding-top: 1.75rem;
  padding-bottom: 0.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--fg);
}

.brand span {
  color: var(--accent);
}

nav {
  margin-top: 0.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-size: 0.95rem;
}

nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-decoration: none;
  font-weight: 500;
}

nav a:hover,
nav a[aria-current="page"] {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

nav a[aria-current="page"] {
  color: var(--fg);
  font-weight: 700;
}

h1 {
  font-size: 1.75rem;
  line-height: 1.25;
  margin: 1rem 0 0.5rem;
}

h2 {
  font-size: 1.2rem;
  margin-top: 1.75rem;
}

h3 {
  font-size: 1.05rem;
  margin-top: 1.25rem;
}

.meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  margin: 1.25rem 0;
}

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

.links li {
  margin: 0.75rem 0;
}

.links a {
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.links a:hover {
  text-decoration: underline;
}

.links p {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0;
  font-size: 0.95rem;
}

caption {
  text-align: left;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--fg);
}

th,
td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.65rem;
  text-align: left;
  vertical-align: top;
}

th {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--fg);
}

ul {
  padding-left: 1.25rem;
}

code {
  font-size: 0.9em;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

footer {
  margin-top: 2.5rem;
  padding-bottom: 2.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}