:root {
  --bg: #f7f4ef;
  --surface: #ffffff;
  --text: #221c16;
  --muted: #6b6157;
  --border: #e4ddd3;
  --accent: #a4520f;
  --accent-soft: #f7e9da;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141110;
    --surface: #1c1814;
    --text: #efe8df;
    --muted: #a99d90;
    --border: #332c25;
    --accent: #f0a54a;
    --accent-soft: #3a2a19;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

header {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: baseline;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

h1 {
  margin: 0;
  font-size: 22px;
}

h1 a {
  color: inherit;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 16px;
}

nav a {
  color: var(--muted);
  font-weight: 600;
  text-decoration: none;
}

nav a[aria-current="page"] {
  color: var(--accent);
}

h2 {
  margin: 0;
  font-size: 22px;
}

p {
  margin: 8px 0;
}

.tagline,
.muted {
  color: var(--muted);
}

.small {
  font-size: 13px;
}

main {
  max-width: 820px;
  margin: 0 auto;
  padding: 16px;
}

.panel {
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.eyebrow {
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.summary {
  font-weight: 600;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin: 16px 0 12px;
}

.controls[hidden] {
  display: none;
}

.filters {
  display: flex;
  gap: 6px;
}

.chip {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  cursor: pointer;
}

.chip.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

select,
input[type="search"] {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

input[type="search"] {
  flex: 1 1 200px;
}

.controls select {
  flex: 1 1 140px;
}

.list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.card {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

summary {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  justify-content: space-between;
  cursor: pointer;
}

.name {
  font-weight: 600;
}

summary .name::before {
  content: "▸ ";
  color: var(--muted);
}

details[open] summary .name::before {
  content: "▾ ";
}

.meta {
  color: var(--muted);
}

.card-header {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  justify-content: space-between;
  font-weight: 600;
}

.shelves {
  margin-top: 16px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

.tag {
  padding: 1px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
}

.tag.accent {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.more {
  display: block;
  margin: 12px auto 0;
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  cursor: pointer;
}

.more[hidden] {
  display: none;
}

.sublist {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.sublist li {
  display: grid;
  grid-template-columns: 1fr auto 3ch;
  gap: 12px;
  padding: 4px 0;
  border-top: 1px solid var(--border);
}

.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

footer {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 16px 24px;
  color: var(--muted);
  font-size: 13px;
}