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

:root {
  color-scheme: dark;
  --bg: #121212;
  --surface: #1a1a1a;
  --text: #e8e8e8;
  --muted: #a0a0a0;
  --border: #2a2a2a;
  --link: #8ab4f8;
  --link-hover: #aecbfa;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

h1 {
  margin: 0 0 0.25rem;
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

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

nav {
  margin-top: 1rem;
  font-size: 0.9rem;
}

nav a {
  margin-right: 1rem;
}

h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.15rem;
  font-weight: 600;
}

h2:first-of-type {
  margin-top: 0;
}

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

ul,
ol {
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.35rem;
}

a {
  color: var(--link);
  text-decoration: none;
}

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

.meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.page-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

.page-list li {
  margin-bottom: 0.75rem;
}

.page-list a {
  display: block;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.page-list a:hover {
  text-decoration: none;
  border-color: #3a3a3a;
}

footer {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 480px) {
  main {
    padding: 1.5rem 1rem 2.5rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  nav a {
    display: inline-block;
    margin: 0 0.75rem 0.5rem 0;
  }
}