/* intentionally minimal. this is a choice. */

:root {
  --text: #111;
  --dim:  #666;
  --bg:   #fff;
  --max:  640px;
  --accent: #444;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #ddd;
    --dim:  #888;
    --bg:   #111;
    --accent: #aaa;
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Georgia, serif;
  font-size: 18px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

details {
  margin-left: 1.25rem;
  font-size: 0.9em;
}

/* top-level details shouldn't be indented */
main > details {
  margin-left: 0;
  font-size: 1em;
}

nav {
  display: flex;
  gap: 1.5rem;
  font-size: 0.9rem;
}

nav a.active {
  text-decoration: none;
  color: var(--dim);
  pointer-events: none;
}

h1 {
  font-size: 2rem;
  font-weight: normal;
  margin-bottom: 0.4rem;
}

h2 {
  font-size: 1rem;
  font-weight: normal;
  text-transform: lowercase;
  letter-spacing: 0.05em;
  color: var(--dim);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1rem;
  font-weight: bold;
  margin-bottom: 0.3rem;
}

hr {
  border: none;
  border-top: 1px solid var(--text);
  margin: 2rem 0;
}

p {
  margin-bottom: 0.75rem;
}

article {
  margin-bottom: 1.5rem;
}

ul {
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
}

li {
  margin-bottom: 0.2rem;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin-top: 1rem;
  font-size: 0.9rem;
}

th, td {
  text-align: left;
  padding: 0.35rem 0.75rem 0.35rem 0;
  vertical-align: top;
  border-bottom: 1px solid currentColor;
  opacity: 0.85;
}

th {
  width: 110px;
  color: var(--dim);
  font-weight: normal;
  white-space: nowrap;
}

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

a:hover {
  opacity: 0.6;
}

.meta {
  font-weight: normal;
  color: var(--dim);
  font-size: 0.85rem;
}

.copy-btn {
  background: none;
  border: 1px solid var(--dim);
  color: var(--dim);
  font-family: inherit;
  font-size: 0.75rem;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  cursor: pointer;
  vertical-align: middle;
}

.copy-btn:hover {
  color: var(--text);
  border-color: var(--text);
}

footer {
  color: var(--dim);
  font-size: 0.85rem;
}

details summary {
  cursor: pointer;
  padding: 0.25rem 0;
}

details > *:not(summary) {
  animation: collapse 0.2s ease-in forwards;
}

details[open] > *:not(summary) {
  animation: expand 0.2s ease-out forwards;
}

@keyframes expand {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes collapse {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-4px); }
}