:root {
  color-scheme: light dark;
  --bg: #faf6ee;
  --surface: #fffdf8;
  --surface-2: #f3ede1;
  --ink: #2d2a26;
  --mute: #6b6459;
  --line: #e3dccd;
  --accent: #1f6a66;
  --accent-ink: #ffffff;
  --focus: #2f6fd0;
  --ok: #2e7d43;
  --warn: #9a5b12;
  --lvl-primary: #c43c3c;
  --lvl-lower-elementary: #2f8a43;
  --lvl-upper-elementary: #2f66c0;
  --lvl-middle-school: #7d52b8;
  --lvl-unsorted: #8a7f6c;
  --lvl-guides: #1f6a66;
  --lvl-materials: #a87439;
  --radius: 12px;
  --shadow: 0 1px 2px rgb(60 45 20 / 0.06), 0 2px 8px rgb(60 45 20 / 0.05);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1916;
    --surface: #24211d;
    --surface-2: #2c2924;
    --ink: #ece6da;
    --mute: #b0a796;
    --line: #3a362f;
    --accent: #6cc3bb;
    --accent-ink: #10201f;
    --focus: #8ab4ff;
    --ok: #7fd08f;
    --warn: #e5b06a;
    --lvl-primary: #ef7d7d;
    --lvl-lower-elementary: #74c985;
    --lvl-upper-elementary: #85aef2;
    --lvl-middle-school: #b99ae6;
    --lvl-unsorted: #bdb39f;
    --lvl-guides: #6cc3bb;
    --lvl-materials: #dcae78;
    --shadow: none;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 var(--sans);
}

a { color: var(--accent); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 28px 0 20px;
}
.eyebrow {
  margin: 0 0 4px;
  color: var(--mute);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
h1 {
  margin: 0;
  font: 600 clamp(1.8rem, 4vw, 2.5rem)/1.15 var(--serif);
}
.lede { margin: 8px 0 0; color: var(--mute); max-width: 60ch; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 20px;
}
.search {
  flex: 1 1 260px;
  min-width: 0;
  padding: 10px 14px;
  font: inherit;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 999px;
}
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font: inherit;
  font-size: 0.9rem;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}
.chip[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

main { padding: 24px 0 48px; }

.status { color: var(--mute); padding: 24px 0; }
.status.error { color: var(--warn); }

.shelf {
  margin: 0 0 36px;
  padding-left: 14px;
  border-left: 4px solid var(--shelf-color, var(--line));
}
.shelf > h2 {
  margin: 0 0 4px;
  font: 600 1.5rem/1.2 var(--serif);
}
.shelf > .count { margin: 0 0 12px; color: var(--mute); font-size: 0.9rem; }
.group > h3 {
  margin: 18px 0 10px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--mute);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr));
  gap: 10px;
}
.card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  height: 100%;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: var(--ink);
  text-decoration: none;
}
.card:hover { border-color: var(--shelf-color, var(--accent)); }
.card .title { font-weight: 600; line-height: 1.3; }
.card .meta { color: var(--mute); font-size: 0.85rem; }
.badge {
  display: inline-block;
  padding: 0 6px;
  border-radius: 4px;
  background: var(--surface-2);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 20px 0 32px;
  color: var(--mute);
  font-size: 0.9rem;
}

/* Editor guide */
.prose { max-width: 72ch; }
.prose h2 { font: 600 1.4rem/1.2 var(--serif); margin: 32px 0 8px; }
.prose ol, .prose ul { padding-left: 1.3em; }
.prose li { margin: 4px 0; }
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--surface-2);
  padding: 1px 5px;
  border-radius: 4px;
  overflow-wrap: anywhere;
}
.button {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  text-decoration: none;
}
.note {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 16px;
}
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--surface-2); font-weight: 600; position: sticky; top: 0; }
tr:last-child td { border-bottom: 0; }
.done { color: var(--ok); font-weight: 600; white-space: nowrap; }
.missing { color: var(--warn); white-space: nowrap; }
.checklist-bar { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; margin: 12px 0; }
.checklist-bar label { display: inline-flex; gap: 6px; align-items: center; }