/* Theme: paper-library. A loved public library: cream card stock, ink, typed labels and rubber stamps.
   Books are catalogue cards, Points are stamped in plum ink, progress is a row of date-due boxes. */

:root {
  color-scheme: light;
  --paper: #f1e7d0;
  --paper-deep: #e3d6b8;
  --card: #fbf5e6;
  --card-edge: #d9c9a3;
  --ink: #2a241c;
  --ink-soft: #6a5f4f;
  --ink-faint: #9b8f7c;
  --rule: rgba(58, 42, 18, 0.22);
  --rule-strong: rgba(58, 42, 18, 0.45);
  --accent: #74306e;
  --accent-deep: #52204f;
  --blue: #23508a;
  --second: #94621a;
  --glow: #f3e0f0;
  --gold: #c99a2e;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
  --type: "American Typewriter", "Courier Prime", "Courier New", Courier, monospace;
  --shadow: 0 1px 0 rgba(255,255,255,.6) inset, 0 1px 2px rgba(60,40,10,.18), 0 6px 14px -6px rgba(60,40,10,.35);
  --grain:
    radial-gradient(circle, rgba(90,70,30,.07) 0 .6px, transparent .9px),
    radial-gradient(circle, rgba(255,255,255,.45) 0 .6px, transparent .9px),
    radial-gradient(circle, rgba(90,70,30,.05) 0 .8px, transparent 1.1px);
  --grain-size: 5px 5px, 7px 7px, 11px 11px;
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.4;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(ellipse at 50% 0%, rgba(255,250,235,.7), transparent 60%),
    radial-gradient(ellipse at 50% 100%, rgba(120,90,40,.16), transparent 60%),
    var(--grain);
  background-size: auto, auto, var(--grain-size);
  background-position: 0 0, 0 0, 1px 2px, 3px 1px, 5px 4px;
  background-attachment: fixed;
  min-height: 100vh;
  padding-inline: 16px;
  padding-block: 0 56px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration-thickness: 1px; text-underline-offset: 3px; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
ul { list-style: none; margin: 0; padding: 0; }

/* ---------- page frame ---------- */

.page { max-width: 720px; margin: 0 auto; }
@media (min-width: 900px) { .page { max-width: 880px; } }

/* ---------- header ---------- */

.masthead {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 0 18px;
  border-bottom: 1.5px solid var(--rule-strong);
  position: relative;
}
.masthead::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -5px;
  border-bottom: 1px solid var(--rule);
}
.masthead .icon { width: 44px; height: 44px; flex: none; filter: drop-shadow(0 1px 0 rgba(255,255,255,.5)); }
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: .01em;
  line-height: 1;
  margin: 0;
  color: inherit;
  text-decoration: none;
}
.brand small {
  display: block;
  font-family: var(--type);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 5px;
}
.masthead .spacer { flex: 1; }
.masthead .logout {
  font-family: var(--type);
  font-size: 13px;
  color: var(--ink-soft);
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  padding: 0 6px;
}

/* summary line: running total */
.summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 12px 20px;
  padding: 18px 0 0;
}

/* ---------- call-out labels (badges): stamp ink over a double rule, no box ---------- */

.badge {
  display: inline-block;
  font-family: var(--serif);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent);
  border-bottom: 4px double currentColor;
  padding: 0 2px 2px;
  line-height: 1.15;
  transform: rotate(-2.5deg);
  mix-blend-mode: multiply;
  -webkit-mask-image:
    radial-gradient(circle at 30% 40%, #000 0 55%, rgba(0,0,0,.5) 100%),
    repeating-radial-gradient(circle at 60% 60%, #000 0 2px, rgba(0,0,0,.7) 2px 4px);
  mask-image:
    radial-gradient(circle at 30% 40%, #000 0 55%, rgba(0,0,0,.5) 100%),
    repeating-radial-gradient(circle at 60% 60%, #000 0 2px, rgba(0,0,0,.7) 2px 4px);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
  white-space: nowrap;
}
.badge.big { font-size: 22px; padding-bottom: 3px; border-bottom-width: 6px; }
.badge.small { font-size: 12px; border-bottom-width: 3px; letter-spacing: .1em; }
.badge.status { color: var(--blue); transform: rotate(2deg); }
.badge.percent { transform: rotate(-1.5deg); }
.badge .num { font-size: 1.35em; letter-spacing: 0; }
.badge .unit { font-size: .8em; }

/* state tags: an icon and a word in stamp ink over a double rule, no box */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .1em;
  text-transform: uppercase;
  line-height: 1.1;
  color: var(--accent);
  padding: 0 2px 2px;
  border-bottom: 4px double currentColor;
  transform: rotate(-2.5deg);
  mix-blend-mode: multiply;
  white-space: nowrap;
  -webkit-mask-image:
    radial-gradient(circle at 30% 40%, #000 0 55%, rgba(0,0,0,.55) 100%),
    repeating-radial-gradient(circle at 60% 60%, #000 0 2px, rgba(0,0,0,.72) 2px 4px);
  mask-image:
    radial-gradient(circle at 30% 40%, #000 0 55%, rgba(0,0,0,.55) 100%),
    repeating-radial-gradient(circle at 60% 60%, #000 0 2px, rgba(0,0,0,.72) 2px 4px);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
}
.tag svg { width: 1.35em; height: 1.35em; flex: none; }
.tag.is-requested { color: var(--second); transform: rotate(1.5deg); }

/* the running total is a passport page: one round star stamp per Point */
.passport {
  flex: 1 1 100%;
  position: relative;
  padding: 14px 16px 16px 26px;
  background:
    repeating-radial-gradient(circle at 110% -10%, transparent 0 7px, rgba(116,48,110,.05) 7px 8px),
    linear-gradient(90deg, rgba(60,40,10,.14), transparent 18px),
    var(--card);
  border: 1px solid var(--card-edge);
  border-radius: 3px 10px 10px 3px;
  box-shadow: var(--shadow);
}
.passport::before { content: ""; position: absolute; left: 9px; top: 10px; bottom: 10px; border-left: 1.5px dashed rgba(116,48,110,.35); }
.passport-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 10px;
  margin-bottom: 12px;
}
.passport-head .cap { font-family: var(--type); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-soft); }
.stamps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; justify-items: center; }
.stamp { --s: min(40px, 10vw); width: var(--s); height: var(--s); color: var(--accent); mix-blend-mode: multiply; transform: rotate(-14deg); opacity: .9; }
.stamp:nth-child(2n) { transform: rotate(11deg); opacity: .78; }
.stamp:nth-child(3n) { transform: rotate(-4deg); opacity: 1; }
.stamp:nth-child(5n+2) { transform: rotate(22deg); opacity: .84; }
.stamp:nth-child(7n+1) { transform: rotate(-24deg); opacity: .74; }
.stamp svg { display: block; width: 100%; height: 100%; }
.stamp.is-part { position: relative; }
.stamp.is-part svg { clip-path: inset(0 calc(100% - var(--f) * 100%) 0 0); }
.stamp.is-part::after, .stamp.is-blank { border: 1.2px dashed var(--rule-strong); border-radius: 50%; }
.stamp.is-part::after { content: ""; position: absolute; inset: 1px; opacity: .7; }
.stamp.is-blank { opacity: .5; transform: none; }
/* ---------- search ---------- */

.search { margin: 16px 0 28px; position: relative; }
.search input {
  width: 100%;
  min-height: 56px;
  font: inherit;
  font-size: 20px;
  color: var(--ink);
  background: linear-gradient(var(--card), var(--card)) padding-box;
  border: 1.5px solid var(--card-edge);
  border-top-color: var(--accent);
  border-top-width: 4px;
  border-radius: 3px;
  padding: 10px 16px 8px 48px;
  box-shadow: var(--shadow);
  outline: none;
  -webkit-appearance: none;
}
.search input::placeholder { color: var(--ink-faint); font-style: italic; }
.search input:focus { border-color: var(--ink-soft); border-top-color: var(--accent); }
.search svg {
  position: absolute;
  left: 16px; top: 50%;
  width: 20px; height: 20px;
  transform: translateY(-50%);
  color: var(--ink-soft);
}
.search::after {
  content: "";
  position: absolute;
  top: -2px; left: 0; right: 0;
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent) 38%, var(--glow) 50%, var(--accent) 62%, var(--accent) 100%);
  background-size: 300% 100%;
  background-position: 75% 0;
  box-shadow: 0 1px 3px rgba(116,48,110,.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}
.search.is-searching::after,
.search.htmx-request::after,
.search:has(~ #results .is-loading)::after { opacity: 1; animation: sweep var(--sweep, 1.4s) cubic-bezier(.35,.1,.65,.9) infinite alternate; }
.search.is-searching svg,
.search.htmx-request svg { animation: seeking .9s ease-in-out infinite; }
.search.is-searching ~ #results,
.search.htmx-request ~ #results { opacity: .35; transition: opacity .25s; }
@keyframes seeking {
  0%, 100% { transform: translateY(-50%) rotate(0); }
  50% { transform: translateY(-50%) rotate(-30deg); }
}
@keyframes sweep {
  from { background-position: 75% 0; }
  to { background-position: 25% 0; }
}
.shelf-group.is-loading .nothing { margin: 12px 0 28px; animation: musing 1.4s ease-in-out infinite; }
@keyframes musing {
  0%, 100% { opacity: .45; }
  50% { opacity: 1; }
}

.empty, .nothing {
  text-align: center;
  font-style: italic;
  color: var(--ink-soft);
  margin: 40px 0;
}

/* ---------- group labels (section headings) ---------- */

/* checkout slips torn from one strip: the first is perforated along the bottom, later ones along both edges */
.group-label {
  margin: 30px 0 14px;
  filter: drop-shadow(0 1px 1px rgba(60,40,10,.3)) drop-shadow(0 4px 5px rgba(60,40,10,.18));
}
.group-label h2 {
  position: relative;
  margin: 0;
  font-family: var(--type);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  text-align: center;
  color: var(--ink);
  background: linear-gradient(#ecd9a8, #e2cb92);
  padding: 14px 14px 13px;
  white-space: nowrap;
  -webkit-mask:
    linear-gradient(#000, #000) 0 0 / 100% 51% no-repeat,
    radial-gradient(circle at 7px 100%, transparent 4.5px, #000 5px) 0 100% / 14px 51% repeat-x;
  mask:
    linear-gradient(#000, #000) 0 0 / 100% 51% no-repeat,
    radial-gradient(circle at 7px 100%, transparent 4.5px, #000 5px) 0 100% / 14px 51% repeat-x;
}
.shelf-group ~ .shelf-group .group-label h2 {
  -webkit-mask:
    radial-gradient(circle at 7px 0, transparent 4.5px, #000 5px) 0 0 / 14px 51% repeat-x,
    radial-gradient(circle at 7px 100%, transparent 4.5px, #000 5px) 0 100% / 14px 51% repeat-x;
  mask:
    radial-gradient(circle at 7px 0, transparent 4.5px, #000 5px) 0 0 / 14px 51% repeat-x,
    radial-gradient(circle at 7px 100%, transparent 4.5px, #000 5px) 0 100% / 14px 51% repeat-x;
}
.group-label h2::before {
  content: "";
  position: absolute;
  left: 16px; top: 9px; bottom: 9px;
  border-left: 2px solid var(--accent);
  opacity: .7;
}
.group-label h2 span { color: var(--ink-soft); margin-left: 6px; }

/* ---------- library card ---------- */

.book-card {
  position: relative;
  background:
    repeating-linear-gradient(to bottom, transparent 0 27px, rgba(58,42,18,.13) 27px 28px),
    linear-gradient(var(--card), var(--card));
  background-origin: content-box, border-box;
  background-clip: content-box, border-box;
  border: 1px solid var(--card-edge);
  border-radius: 3px;
  box-shadow: var(--shadow);
  padding: 14px 16px 14px 16px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 16px;
  align-items: start;
  margin-bottom: 14px;
  color: var(--ink);
  text-decoration: none;
}
.book-card::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 3px;
  background: var(--accent);
  opacity: .85;
  border-radius: 3px 3px 0 0;
}
/* a finished card carries one Points stamp in its top right corner */
.book-card .stamp { position: absolute; top: 10px; right: 12px; transform: rotate(-14deg); opacity: .9; }
.book-card.is-finished .title { padding-right: 44px; }
.book-card .cover { grid-row: 1 / span 3; }
.book-card .title { margin: 0; font-size: 22px; font-weight: 600; line-height: 1.2; }
.book-card .author {
  margin: 0;
  font-family: var(--type);
  font-size: 13px;
  color: var(--ink-soft);
  letter-spacing: .02em;
}
.book-card .meta, .book-card .badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: 4px;
}
.book-card .note { font-size: 16px; color: var(--ink-soft); font-style: italic; }
.book-card .actions { grid-column: 1 / -1; margin-top: 4px; }
@media (min-width: 720px) { .book-card .actions { grid-column: 2; } }
.book-card .actions .btn, .commit .btn { display: flex; width: 100%; }

/* answered-boxes progress (date-due grid) */
.progress { display: inline-flex; gap: 4px; vertical-align: middle; }
.progress i {
  display: block;
  width: 14px; height: 18px;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  background: var(--card);
  position: relative;
}
.progress i.done::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 30%;
  background: var(--accent);
  opacity: .8;
  transform: rotate(-6deg);
}
.progress i.now { border-color: var(--ink); border-width: 2px; }

/* ---------- covers (CSS placeholders) ---------- */

.cover {
  --c: #6f4a2c;
  --c2: #4e3018;
  width: 64px;
  aspect-ratio: 2 / 3;
  border-radius: 2px 5px 5px 2px;
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,.06) 0 1px, transparent 1px 3px),
    linear-gradient(90deg, var(--c2) 0 7px, rgba(255,255,255,.18) 7px 8px, var(--c) 8px);
  box-shadow: 1px 2px 4px rgba(40,25,5,.4), inset -3px 0 6px -3px rgba(0,0,0,.4);
  color: #f6ecd6;
  display: grid;
  align-content: end;
  padding: 6px 6px 8px 14px;
  font-size: 9px;
  line-height: 1.15;
  font-family: var(--serif);
  text-shadow: 0 1px 0 rgba(0,0,0,.35);
  position: relative;
  flex: none;
  overflow: hidden;
}
.cover b { display: block; font-weight: 600; font-size: 10px; }
.cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}
.cover::before {
  content: "";
  position: absolute;
  top: 8px; left: 14px; right: 6px;
  height: 20%;
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 2px;
}

/* ---------- buttons ---------- */

/* every button is a rubber stamp: ink outline with the same worn texture as the badges */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 10px 24px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  background: radial-gradient(ellipse at 30% 40%, color-mix(in srgb, currentColor 16%, transparent), color-mix(in srgb, currentColor 6%, transparent) 75%);
  border: 3px double currentColor;
  border-radius: 6px;
  text-decoration: none;
  cursor: pointer;
  transform: rotate(-.6deg);
  mix-blend-mode: multiply;
  -webkit-mask-image:
    radial-gradient(circle at 30% 40%, #000 0 60%, rgba(0,0,0,.6) 100%),
    repeating-radial-gradient(circle at 60% 60%, #000 0 2px, rgba(0,0,0,.8) 2px 4px);
  mask-image:
    radial-gradient(circle at 30% 40%, #000 0 60%, rgba(0,0,0,.6) 100%),
    repeating-radial-gradient(circle at 60% 60%, #000 0 2px, rgba(0,0,0,.8) 2px 4px);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
}
.btn:active {
  background: radial-gradient(ellipse at 30% 40%, color-mix(in srgb, currentColor 28%, transparent), color-mix(in srgb, currentColor 14%, transparent) 75%);
  transform: rotate(-.6deg) scale(.98);
}
.btn.block { display: flex; width: 100%; min-height: 64px; font-size: 24px; }
/* a secondary stamp in plain ink, for ways out such as Back to the shelf */
.btn.quiet { color: var(--ink-soft); transform: rotate(.4deg); }
.btn.quiet:active { transform: rotate(.4deg) scale(.98); }
.btn svg { width: 18px; height: 18px; }

/* ---------- book page ---------- */

.back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  font-family: var(--type);
  font-size: 14px;
  color: var(--ink-soft);
  text-decoration: none;
  margin-top: 14px;
}
.back svg { width: 16px; height: 16px; }
.back:hover { color: var(--ink); text-decoration: underline; }

.book-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  justify-items: center;
  text-align: center;
  padding: 20px 0 8px;
}
@media (min-width: 720px) {
  .book-hero {
    grid-template-columns: auto 1fr;
    justify-items: start;
    text-align: left;
    gap: 36px;
    align-items: start;
    padding-top: 32px;
  }
}
.book-hero > div { width: 100%; }
.book-hero .cover {
  width: 168px;
  font-size: 16px;
  padding: 12px 12px 16px 26px;
  border-radius: 3px 10px 10px 3px;
  box-shadow: 2px 6px 14px rgba(40,25,5,.45), inset -6px 0 10px -6px rgba(0,0,0,.45);
}
.book-hero .cover b { font-size: 20px; }
.book-hero .cover::before { top: 16px; left: 26px; right: 12px; height: 26%; }
.book-hero .title { font-size: 40px; font-weight: 600; line-height: 1.05; margin: 0 0 6px; }
.book-hero .author { font-size: 20px; font-style: italic; color: var(--ink-soft); margin: 0; }
.book-hero .level {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--type);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  border: 1px solid var(--rule);
  padding: 4px 8px 3px;
  border-radius: 2px;
}
.book-hero > div > .note { font-style: italic; color: var(--ink-soft); margin-top: 24px; }
.book-facts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  margin-top: 22px;
  justify-content: center;
}
@media (min-width: 720px) { .book-facts { justify-content: flex-start; } }
.fact { font-family: var(--type); font-size: 14px; color: var(--ink-soft); }
.fact strong { font-family: var(--serif); font-size: 22px; color: var(--ink); font-weight: 600; margin-right: 4px; }

.commit, .result, .sign-in {
  margin: 30px auto 0;
  max-width: 520px;
  background: var(--card);
  border: 1px solid var(--card-edge);
  border-radius: 3px;
  box-shadow: var(--shadow);
  padding: 22px 20px 18px;
  text-align: center;
  position: relative;
}
.commit::before, .result::before, .sign-in::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 3px;
  background: var(--accent);
  opacity: .85;
  border-radius: 3px 3px 0 0;
}
@media (min-width: 720px) { .commit, .result { margin-left: 0; } }
.sign-in { margin-top: 48px; }
.sign-in p { margin: 0 0 20px; font-size: 20px; font-weight: 600; }
.sign-in .btn { display: flex; width: 100%; min-height: 64px; letter-spacing: .1em; }
.commit .reminder { margin: 14px 0 0; font-size: 17px; font-style: italic; color: var(--ink-soft); }
.commit .reminder b { font-style: normal; font-weight: 600; color: var(--ink); }

.result .result-line { margin: 0 0 18px; font-size: 22px; font-weight: 600; }
.result .badges { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 14px 22px; }
.result .note { margin: 18px 0 0; font-size: 16px; font-style: italic; color: var(--ink-soft); }

.bottom-nav { max-width: 520px; margin: 36px auto 0; }
@media (min-width: 720px) { .bottom-nav { margin-left: 0; } }
.bottom-nav .btn { display: flex; width: 100%; }

/* ---------- question page ---------- */

.quiz-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
  padding: 20px 0 6px;
}
.quiz-head .which {
  font-family: var(--type);
  font-size: 13px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.quiz-head .which b { color: var(--ink); font-weight: 400; }
.quiz-head .book { display: flex; align-items: center; gap: 10px; font-style: italic; color: var(--ink-soft); }
.quiz-head .book .cover { width: 28px; font-size: 0; padding: 0; }
.quiz-head .book .cover::before { display: none; }

.progress-row { display: flex; align-items: center; gap: 12px; margin: 10px 0 24px; }
.progress-row .progress { display: grid; grid-template-columns: repeat(var(--n, 8), 1fr); gap: 6px; flex: 1; max-width: 360px; }
.progress-row .progress i { width: 100%; height: 22px; }
.progress-row .count { font-family: var(--type); font-size: 13px; color: var(--ink-soft); white-space: nowrap; }

.qcard {
  background: var(--card);
  border: 1px solid var(--card-edge);
  border-radius: 3px;
  box-shadow: var(--shadow);
  padding: 26px 20px 22px;
  position: relative;
}
.qcard::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 3px;
  background: var(--accent);
  opacity: .85;
  border-radius: 3px 3px 0 0;
}
@media (min-width: 720px) { .qcard { padding: 36px 40px 30px; } }
.qcard h1 { font-size: 26px; font-weight: 600; line-height: 1.25; margin: 0 0 24px; }
@media (min-width: 720px) { .qcard h1 { font-size: 32px; } }

.choices { display: grid; gap: 10px; }
.choice {
  display: grid;
  grid-template-columns: 30px 1fr;
  align-items: center;
  gap: 14px;
  min-height: 56px;
  padding: 10px 14px;
  border: 1.5px solid var(--rule);
  border-radius: 3px;
  background: linear-gradient(rgba(255,255,255,.35), rgba(255,255,255,0));
  font-size: 21px;
  cursor: pointer;
  position: relative;
}
.choice input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.choice .box {
  width: 26px; height: 26px;
  border: 1.5px solid var(--rule-strong);
  border-radius: 2px;
  background: var(--card);
  display: grid;
  place-items: center;
  color: var(--accent);
}
.choice .box svg { width: 22px; height: 22px; opacity: 0; transform: rotate(-4deg) scale(.7); transition: opacity .12s, transform .12s; }
.choice .letter { font-family: var(--type); font-size: 12px; color: var(--ink-faint); margin-right: 8px; }
.choice:has(input:checked) {
  border-color: var(--ink);
  border-width: 2px;
  padding: 9.5px 13.5px;
  background: linear-gradient(rgba(116,48,110,.06), rgba(116,48,110,.03));
}
.choice:has(input:checked) .box svg { opacity: 1; transform: rotate(-4deg) scale(1); }
.choice:has(input:focus-visible) { outline: 2px solid var(--blue); outline-offset: 2px; }

.qfoot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  margin-top: 26px;
}
@media (min-width: 481px) { .qfoot .btn { width: auto; min-width: 200px; } }
.qfoot .leave {
  font-family: var(--type);
  font-size: 13px;
  color: var(--ink-soft);
  text-decoration: none;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.qfoot .leave svg { width: 16px; height: 16px; flex: none; }
.qfoot .leave small { display: block; color: var(--ink-faint); font-size: 11px; }
@media (max-width: 480px) {
  .qfoot { flex-direction: column-reverse; align-items: stretch; }
  .qfoot .btn { width: 100%; }
  .qfoot .leave { justify-content: center; }
}

/* ---------- finished stack ---------- */

.shelf-group.is-finished .book-list { display: grid; gap: 14px; }
.shelf-group.is-finished .book-card { margin-bottom: 0; }
.shelf-group.is-finished li:nth-child(3n+1) .book-card { transform: rotate(-.6deg); }
.shelf-group.is-finished li:nth-child(3n+2) .book-card { transform: rotate(.5deg); }
.shelf-group.is-finished li:nth-child(3n+3) .book-card { transform: rotate(-.3deg); }
.shelf-group.is-finished .book-card:hover { transform: none; }

/* requested card: ghost cover */
.book-card.is-requested .cover {
  --c: #d8c9a6;
  --c2: #b9a578;
  color: var(--ink-soft);
  text-shadow: none;
  box-shadow: 1px 2px 4px rgba(40,25,5,.25);
}

/* footer */
.foot {
  margin-top: 44px;
  text-align: center;
  font-family: var(--type);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

@media (prefers-reduced-motion: reduce) {
  .search::after, .search svg, .shelf-group.is-loading .nothing { animation: none !important; }
  .choice .box svg { transition: none; }
  .search.is-searching::after,
  .search.htmx-request::after,
  .search:has(~ #results .is-loading)::after { background: var(--glow); background-size: auto; }
}