:root {
  --paper: #f6f1e7;
  --surface: #fffdf8;
  --ink: #2b2620;
  --ink-2: #6b6358;
  --hairline: #e3dbcb;
  --accent: #8a5a2b;
  --accent-ink: #fff;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
a { color: inherit; text-decoration: none; }
h1, h2 { font-family: Georgia, "Times New Roman", serif; font-weight: 600; }
.muted { color: var(--ink-2); }
.note { color: var(--ink-2); font-style: italic; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 12px 20px; background: var(--surface);
  border-bottom: 1px solid var(--hairline); position: sticky; top: 0; z-index: 5;
}
.brand { font-family: Georgia, serif; font-size: 22px; font-weight: 700; color: var(--accent); }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.link { background: none; border: none; color: var(--accent); cursor: pointer; font-size: 15px; padding: 0; }
.inline { display: inline; margin: 0; }
.switcher {
  font-size: 15px; padding: 6px 10px; border: 1px solid var(--hairline);
  border-radius: 8px; background: var(--surface); color: var(--ink); max-width: 240px;
}

.content { max-width: 1040px; margin: 0 auto; padding: 24px 20px 60px; }

.catalog-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.catalog-head h1 { margin: 0; font-size: 28px; }
.search {
  flex: 1 1 280px; max-width: 380px; padding: 10px 14px; font-size: 15px;
  border: 1px solid var(--hairline); border-radius: 10px; background: var(--surface); color: var(--ink);
}

.catalog-controls { display: flex; align-items: flex-end; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.catalog-controls .search { flex: 1 1 280px; }
.ctl { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--ink-2); }
.ctl .switcher { max-width: none; }
.count-label { color: var(--ink-2); font-size: 13px; margin: 0 0 14px; }
.group-head { font-size: 18px; margin: 22px 0 12px; display: flex; align-items: baseline; gap: 8px; }
.group-head:first-of-type { margin-top: 6px; }
.group-count { color: var(--ink-2); font-size: 13px; font-family: -apple-system, BlinkMacSystemFont, sans-serif; font-weight: 400; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 22px; }
.grid + .group-head { margin-top: 30px; }
.card { display: flex; flex-direction: column; gap: 6px; }
.cover {
  aspect-ratio: 2/3; border-radius: 8px; overflow: hidden; background: var(--surface);
  border: 1px solid var(--hairline); box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cover-fallback {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  padding: 10px; text-align: center; background: linear-gradient(160deg, #efe6d4, #e3d6bd);
}
.cover-fallback span { font-family: Georgia, serif; font-size: 14px; color: var(--ink-2); }
.card-title { font-family: Georgia, serif; font-size: 14px; line-height: 1.25; max-height: 2.5em; overflow: hidden; }
.card-author { font-size: 12px; color: var(--ink-2); }
.empty { padding: 40px 0; text-align: center; }

.detail-head { display: flex; gap: 24px; align-items: flex-start; flex-wrap: wrap; }
.cover.lg { width: 180px; flex: 0 0 180px; }
.detail-meta { flex: 1 1 280px; }
.detail-meta h1 { margin: 0 0 4px; font-size: 28px; }
.subtitle { font-style: italic; color: var(--ink-2); margin: 0 0 8px; }
.authors { font-size: 17px; margin: 0 0 6px; }
.loc { color: var(--ink-2); }
.tbr { display: inline-block; margin-top: 8px; padding: 4px 12px; border-radius: 999px; font-size: 13px; border: 1px solid var(--hairline); }
.tbr.on { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.detail section { margin-top: 28px; }
.detail h2 { font-size: 18px; margin: 0 0 8px; }
.prose { max-width: 60ch; }
.facts div { padding: 6px 0; border-top: 1px solid var(--hairline); font-size: 15px; }
.facts span { display: inline-block; width: 90px; color: var(--ink-2); }
.toc { list-style: none; margin: 0; padding: 0; max-width: 60ch; }
.toc li { display: flex; align-items: baseline; gap: 8px; padding: 6px 0; border-top: 1px solid var(--hairline); font-size: 15px; }
.toc-num { color: var(--ink-2); min-width: 2ch; }
.toc-title { flex: 1; }
.toc-page { color: var(--ink-2); font-variant-numeric: tabular-nums; }

.auth-card {
  max-width: 380px; margin: 8vh auto; padding: 32px; background: var(--surface);
  border: 1px solid var(--hairline); border-radius: 16px; text-align: center;
}
.auth-card h1 { font-size: 30px; color: var(--accent); margin: 0 0 8px; }
.apple-btn { height: 44px; margin: 18px 0; cursor: pointer; }
.dev-login { margin-top: 22px; padding-top: 18px; border-top: 1px dashed var(--hairline); text-align: left; }
.dev-login label { display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 6px; }
.dev-login input { width: 100%; padding: 9px 12px; border: 1px solid var(--hairline); border-radius: 8px; margin-bottom: 10px; }
button { font-size: 15px; padding: 9px 16px; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); cursor: pointer; }
.dev-login button { width: 100%; }

/* to-read button */
.tbr-btn { margin-top: 10px; background: var(--surface); color: var(--ink-2); border: 1px solid var(--hairline); border-radius: 999px; padding: 7px 16px; cursor: pointer; }
.tbr-btn.on { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* edit form */
.editform { max-width: 620px; }
.editform h1 { margin: 0 0 18px; }
.editform label { display: block; margin-bottom: 14px; font-size: 14px; color: var(--ink-2); }
.editform input, .editform select, .editform textarea { display: block; width: 100%; margin-top: 5px; padding: 9px 12px; font-size: 15px; color: var(--ink); border: 1px solid var(--hairline); border-radius: 8px; background: var(--surface); font-family: inherit; }
.editform .row { display: flex; gap: 14px; }
.editform .row label { flex: 1; }
.editform .hint { font-style: italic; }
.editform .actions { display: flex; align-items: center; gap: 16px; margin-top: 8px; }
.editform .actions button { width: auto; }

/* members */
.members { list-style: none; padding: 0; max-width: 520px; }
.members li { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--hairline); }
.m-name { font-family: Georgia, serif; }
.m-role { color: var(--ink-2); font-size: 13px; text-transform: capitalize; margin-left: auto; }
.link.danger { color: #a4341f; }

/* site footer */
.sitefoot { text-align: center; padding: 28px 20px; color: var(--ink-2); font-size: 13px; }
.sitefoot a { color: var(--ink-2); }