:root {
  --paper: #eef1ec;
  --paper-2: #e2e8e1;
  --ink: #1c2420;
  --ink-soft: #55625a;
  --green: #2f5d46;
  --green-ink: #ffffff;
  --brass: #a57f35;
  --sticker: #fbfbf7;
  --line: #c9d3ca;
  --focus: #2f5d46;
  --serif: "Literata", Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141a17;
    --paper-2: #1d2521;
    --ink: #e6ece7;
    --ink-soft: #9fb0a6;
    --green: #7fb39a;
    --green-ink: #10201a;
    --brass: #d1ad62;
    --sticker: #f4f2ea;
    --line: #2f3a34;
    --focus: #9fd0b6;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
}
button, input, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
a { color: var(--green); }

/* ---------- top bar ---------- */
.bar {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  padding: 12px 16px 10px;
}
.bar-inner { max-width: 1180px; margin: 0 auto; display: grid; gap: 10px; }
.bar-top { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.brand { font-family: var(--serif); font-size: 1.45rem; font-weight: 600; margin: 0; letter-spacing: -0.01em; }
.count { color: var(--ink-soft); font-size: .875rem; white-space: nowrap; }
.bar-actions { display: flex; gap: 6px; align-items: center; }
.icon-link { font-size: .875rem; text-decoration: none; padding: 4px 8px; border-radius: 6px; color: var(--ink-soft); }
.icon-link:hover { background: var(--paper-2); color: var(--ink); }
.brand, .icon-link, .count { white-space: nowrap; }
@media (max-width: 480px) {
  .bar-top .count, .bar-actions .signout { display: none; }   /* Sign out moves to the Sync page on phones */
  .bar-actions { gap: 0; }
  .icon-link { padding: 4px 6px; }
}
.update-btn { border: 1px solid var(--line); background: transparent; cursor: pointer; font: inherit; font-size: .875rem; color: var(--green); font-weight: 600; }
.update-btn:disabled { cursor: progress; opacity: .7; }

.search {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--sticker);
  color: #1c2420;
  font-size: 1rem;
}
.search-row { display: flex; gap: 8px; align-items: stretch; }
.search-row .search { flex: 1; min-width: 0; }
.layout { display: flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; flex-shrink: 0; }
.layout button { border: 0; background: transparent; padding: 0 12px; font-size: .875rem; color: var(--ink-soft); cursor: pointer; }
.layout button[aria-pressed="true"] { background: var(--ink); color: var(--paper); font-weight: 600; }
@media (max-width: 380px) { .layout button { padding: 0 9px; } }
.tabs { display: flex; gap: 4px; background: var(--paper-2); border-radius: 10px; padding: 3px; }
.tab {
  flex: 1; border: 0; background: transparent; padding: 7px 8px; border-radius: 8px;
  font-size: .9rem; color: var(--ink-soft); cursor: pointer;
}
.tab[aria-selected="true"] { background: var(--green); color: var(--green-ink); font-weight: 600; }

.notice {
  max-width: 1180px; margin: 12px auto 0; padding: 0 16px;
  color: var(--ink-soft); font-size: .875rem;
}

/* ---------- shelves ---------- */
main { max-width: 1180px; margin: 0 auto; padding: 8px 16px 64px; }
.shelf { margin-top: 28px; }
.shelf-head {
  display: grid; grid-template-columns: auto 1fr auto; align-items: baseline; gap: 12px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 6px; margin-bottom: 14px;
}
.shelf-num {
  font-family: var(--serif); font-size: 2.1rem; line-height: 1; font-weight: 700;
  font-variant-numeric: lining-nums tabular-nums; color: var(--green);
}
.shelf-name { font-family: var(--serif); font-size: 1.15rem; font-weight: 500; }
.shelf-count { color: var(--ink-soft); font-size: .8rem; }
.shelf-note { color: var(--ink-soft); font-size: .9rem; margin: -6px 0 12px; max-width: 70ch; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
  gap: 18px 14px;
  align-items: start;
}
@media (min-width: 720px) { .grid { grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); } }

.book { all: unset; cursor: pointer; display: block; min-width: 0; width: 100%; align-self: start; vertical-align: top; }
.book:focus-visible { outline: 2px solid var(--focus); outline-offset: 4px; border-radius: 4px; }
.cover {
  position: relative; aspect-ratio: 2 / 3; border-radius: 2px 4px 4px 2px; overflow: hidden;
  background: var(--paper-2);
  box-shadow: inset 4px 0 0 rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.18), 0 6px 14px -8px rgba(0,0,0,.35);
}
.cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cover .plain {
  position: absolute; inset: 0; padding: 12px 10px 40px 14px;
  display: flex; flex-direction: column; justify-content: space-between;
  font-family: var(--serif); color: #f3f1e8;
}
.cover .plain b { font-size: .9rem; line-height: 1.25; font-weight: 600; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 5; -webkit-box-orient: vertical; }
.cover .plain span { font-size: .72rem; opacity: .85; }

/* the spine label — the call-number sticker */
.label {
  position: absolute; left: 8px; bottom: 8px;
  background: var(--sticker); color: #1c2420;
  border-radius: 3px; padding: 3px 6px 2px;
  font-family: var(--serif); font-size: .72rem; line-height: 1.15; font-weight: 600;
  font-variant-numeric: lining-nums tabular-nums;
  box-shadow: 0 1px 2px rgba(0,0,0,.35);
  text-align: center; min-width: 38px;
}
.label i { display: block; font-style: normal; font-weight: 500; letter-spacing: .04em; }
.label.pending { background: var(--brass); color: #fff; }

.meta { margin-top: 8px; }
.t { font-family: var(--serif); font-size: .9rem; line-height: 1.25; font-weight: 600;
  overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.a { color: var(--ink-soft); font-size: .8rem; margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.empty { text-align: center; padding: 64px 16px; color: var(--ink-soft); }
.empty h2 { font-family: var(--serif); color: var(--ink); font-weight: 600; }

/* ---------- spine view ---------- */
:root { --shelf-h: 236px; --plank: 14px; --wood: #8b6440; --wood-edge: #6a4a2e; }
@media (max-width: 600px) { :root { --shelf-h: 200px; } }
@media (prefers-color-scheme: dark) { :root { --wood: #5e4630; --wood-edge: #45331f; } }

.bookcase {
  display: flex; flex-wrap: wrap; align-items: flex-start; align-content: flex-start;
  column-gap: 2px; row-gap: 0; padding: 0 8px;
  background:
    repeating-linear-gradient(to bottom,
      transparent 0, transparent var(--shelf-h),
      var(--wood) var(--shelf-h), var(--wood) calc(var(--shelf-h) + var(--plank) - 3px),
      var(--wood-edge) calc(var(--shelf-h) + var(--plank) - 3px), var(--wood-edge) calc(var(--shelf-h) + var(--plank)));
  border-radius: 2px;
}
.spine {
  all: unset; box-sizing: border-box; cursor: pointer;
  width: var(--w);
  height: calc(var(--shelf-h) * var(--hf));
  margin-top: calc(var(--shelf-h) * (1 - var(--hf)));
  margin-bottom: var(--plank);
  background: var(--bg); color: var(--ink);
  border-radius: 2px 2px 1px 1px;
  box-shadow: inset 2px 0 0 rgba(255,255,255,.14), inset -3px 0 0 rgba(0,0,0,.2), inset 0 -1px 0 rgba(0,0,0,.25);
  display: flex; flex-direction: column; align-items: stretch;
  overflow: hidden;
  transition: transform .12s ease-out;
}
.spine:hover { transform: translateY(-4px); }
.spine:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.sp-text {
  flex: 1; min-height: 0;
  writing-mode: vertical-rl;           /* reads top to bottom, like American spines */
  padding: 10px 0 6px;
  overflow: hidden;
  font-family: var(--serif);
  display: block; margin: 0 auto;
}
.sp-title, .sp-author { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-block-size: none; }
.sp-title { font-size: 13px; line-height: 1.2; font-weight: 600; letter-spacing: .01em; }
.sp-author { font-size: 11px; line-height: 1.2; opacity: .88; margin-inline-start: 0; margin-block-start: 1px; }
.sl {
  display: block; margin: 0 3px 7px;
  background: var(--sticker); color: #1c2420;
  font-family: var(--serif); font-size: 11px; line-height: 1.12; font-weight: 600;
  font-variant-numeric: lining-nums tabular-nums;
  text-align: center; padding: 3px 0 2px; border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(0,0,0,.08);
  overflow: hidden;
}
.sl.pending { background: var(--brass); color: #fff; }
@media (prefers-reduced-motion: reduce) { .spine:hover { transform: none; } }

/* ---------- hover card ---------- */
.hc-cover { float: right; width: 64px; aspect-ratio: 2 / 3; object-fit: cover; margin: 0 0 6px 12px; border-radius: 2px; box-shadow: 0 1px 3px rgba(0,0,0,.3); }
.hovercard {
  position: fixed; z-index: 50; width: 340px; max-height: min(420px, calc(100vh - 24px));
  overflow: hidden;
  background: var(--sticker); color: #1c2420;
  border-radius: 10px; padding: 14px 16px 12px;
  box-shadow: 0 2px 4px rgba(0,0,0,.12), 0 18px 40px -12px rgba(0,0,0,.45);
  border-left: 4px solid var(--green);
  pointer-events: none;
}
.hc-title { font-family: var(--serif); font-weight: 600; font-size: 1.02rem; line-height: 1.25; }
.hc-by { color: #55625a; font-size: .82rem; margin: 2px 0 8px; }
.hc-desc {
  font-family: var(--serif); font-size: .86rem; line-height: 1.55;
  display: -webkit-box; -webkit-line-clamp: 11; -webkit-box-orient: vertical; overflow: hidden;
}
.hc-desc p { margin: 0 0 .5em; }
.hc-none { font-size: .85rem; color: #55625a; margin: 0; }
.hc-genre { margin-top: 8px; font-size: .78rem; color: #2f5d46; font-weight: 600; }

.desc { font-family: var(--serif); line-height: 1.6; max-height: 40vh; overflow-y: auto; padding-right: 4px; }
.desc p { margin: 0 0 .7em; }
.desc-src { color: var(--ink-soft); font-size: .78rem; margin-top: -6px !important; }

/* ---------- AI panel ---------- */
.ask { display: flex; gap: 8px; margin-top: 20px; }
.ask input { flex: 1; min-width: 0; padding: 11px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--sticker); color: #1c2420; }
.btn {
  border: 0; border-radius: 10px; padding: 10px 16px; cursor: pointer;
  background: var(--green); color: var(--green-ink); font-weight: 600; white-space: nowrap;
}
.btn.quiet { background: var(--paper-2); color: var(--ink); font-weight: 500; }
.btn.danger { background: transparent; color: #b4412f; padding-left: 0; justify-self: start; }
.btn:disabled { opacity: .6; cursor: progress; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.chip { border: 1px solid var(--line); background: transparent; border-radius: 999px; padding: 5px 12px; font-size: .85rem; cursor: pointer; color: var(--ink-soft); }
.chip:hover { color: var(--ink); border-color: var(--ink-soft); }
.ai-title { font-family: var(--serif); font-size: 1.5rem; font-weight: 600; margin: 28px 0 0; }

/* ---------- detail sheet ---------- */
dialog {
  border: 0; padding: 0; border-radius: 16px; width: min(560px, calc(100vw - 24px));
  background: var(--paper); color: var(--ink);
  box-shadow: 0 24px 60px rgba(0,0,0,.35);
}
dialog::backdrop { background: rgba(10, 18, 14, .55); }
.sheet { padding: 20px; display: grid; gap: 14px; }
.sheet-top { display: grid; grid-template-columns: 96px 1fr; gap: 16px; align-items: start; }
.sheet h2 { font-family: var(--serif); font-size: 1.3rem; line-height: 1.25; margin: 0 0 4px; font-weight: 600; }
.sheet .by { color: var(--ink-soft); margin: 0; }
.sheet p { margin: 0; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 4px 14px; font-size: .9rem; }
.facts dt { color: var(--ink-soft); }
.facts dd { margin: 0; }
.links { display: flex; gap: 8px; flex-wrap: wrap; }
.links a { text-decoration: none; }
.edit { border-top: 1px solid var(--line); padding-top: 14px; display: grid; gap: 10px; }
.edit-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.edit select, .edit input { padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--sticker); color: #1c2420; }
.edit input { width: 110px; }
.close { position: absolute; top: 10px; right: 12px; border: 0; background: transparent; font-size: 1.5rem; line-height: 1; cursor: pointer; color: var(--ink-soft); }

/* ---------- simple pages (login / sync / import) ---------- */
.page { max-width: 620px; margin: 0 auto; padding: 48px 20px; }
.page h1 { font-family: var(--serif); font-weight: 600; font-size: 1.9rem; margin: 0 0 8px; }
.page .lede { color: var(--ink-soft); margin: 0 0 24px; }
.page ol { padding-left: 1.2em; }
.page li { margin-bottom: 12px; }
.card { background: var(--paper-2); border-radius: 12px; padding: 18px; margin: 18px 0; }
.bookmarklet {
  display: inline-block; background: var(--green); color: var(--green-ink); text-decoration: none;
  padding: 10px 16px; border-radius: 10px; font-weight: 600;
}
textarea.code { width: 100%; height: 90px; font-size: .75rem; border-radius: 8px; border: 1px solid var(--line); padding: 8px; background: var(--sticker); color: #1c2420; }
.field { display: grid; gap: 6px; margin-bottom: 14px; }
.field input { padding: 11px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--sticker); color: #1c2420; }
.error { color: #b4412f; }
.progress { font-family: var(--serif); font-size: 1.15rem; }

/* ---------- add a book ---------- */
.add-tabs { margin-bottom: 18px; }
.photo-drop { display: grid; gap: 8px; justify-items: start; padding: 22px 18px; border: 2px dashed var(--line); border-radius: 12px; cursor: pointer; }
.photo-drop input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.photo-drop:focus-within { outline: 2px solid var(--focus); outline-offset: 2px; }
.photo-btn { background: var(--green); color: var(--green-ink); font-weight: 600; padding: 10px 16px; border-radius: 10px; }
.hint { color: var(--ink-soft); font-size: .9rem; }
.inline-form { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; }
.inline-form .field { flex: 1; min-width: 180px; margin: 0; }
.add-card { display: grid; gap: 12px; }
.card-h { font-family: var(--serif); font-size: 1.1rem; margin: 0; font-weight: 600; }
.unclear { color: var(--brass); margin: 0; font-size: .9rem; }
.matches { display: grid; gap: 6px; }
.m-label { margin: 0; font-size: .85rem; color: var(--ink-soft); }
.match { display: grid; grid-template-columns: 40px 1fr; gap: 10px; align-items: center; text-align: left; border: 1px solid var(--line); background: var(--paper); border-radius: 8px; padding: 6px 8px; cursor: pointer; font-size: .85rem; line-height: 1.3; }
.match img, .match .noimg { width: 40px; aspect-ratio: 2 / 3; object-fit: cover; border-radius: 2px; background: var(--paper-2); display: block; }
.match.picked { border-color: var(--green); box-shadow: 0 0 0 1px var(--green); }
.add-card .field { margin: 0; }
.field.flagged input { border-color: var(--brass); background: #fff8e8; box-shadow: 0 0 0 2px color-mix(in srgb, var(--brass) 30%, transparent); }
.flag-note { color: var(--brass); font-size: .82rem; }
.ok-btn { justify-self: start; border: 1px solid var(--line); background: transparent; border-radius: 8px; padding: 3px 10px; font-size: .82rem; cursor: pointer; color: var(--ink); }
.cover-pick { border: 0; padding: 0; margin: 0; display: flex; gap: 14px; flex-wrap: wrap; font-size: .9rem; }
.cover-pick legend { color: var(--ink-soft); font-size: .85rem; margin-bottom: 4px; padding: 0; }
.check { display: flex; gap: 8px; align-items: center; font-size: .9rem; }
.card-msg { color: #b4412f; margin: 0; min-height: 0; font-size: .9rem; }
.card-msg:empty { display: none; }
.card-actions { display: flex; gap: 8px; }
.card.added { background: color-mix(in srgb, var(--green) 12%, var(--paper)); }

/* format tag on covers */
.fmt { position: absolute; bottom: 9px; right: 7px; background: rgba(20, 28, 24, .78); color: #fff; font-size: .66rem; font-weight: 600; padding: 2px 6px; border-radius: 4px; letter-spacing: .02em; }

/* hidden shelf */
.shelf.hidden-shelf .shelf-num { color: var(--brass); }
.shelf.hidden-shelf .shelf-head { border-bottom-color: var(--brass); border-bottom-style: dashed; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* fixes: cover art must sit above the placeholder; [hidden] must always hide */
.cover img { position: absolute; inset: 0; z-index: 1; }
.cover .label, .cover .fmt { z-index: 2; }
[hidden] { display: none !important; }
.linkish { border: 0; background: none; padding: 0; color: var(--green); text-decoration: underline; cursor: pointer; font: inherit; }
.move-row { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.move-row .check { font-weight: 600; }
.move-msg { color: var(--green); font-size: .88rem; }
.comic-row input[name=series] { flex: 1; min-width: 140px; width: auto; }
.comic-row input[name=series_order] { width: 70px; }
.edit input[type=checkbox] { width: auto; padding: 0; }