/* BookHub — reading-room foundation. Tokens live in tokens.css; spec in docs/design-system.md */

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  overflow-x: clip;
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: clip;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-optical-sizing: auto;
  line-height: 1.6;
  color: var(--color-ink);
  background:
    radial-gradient(120% 90% at 50% 0%, oklch(34% 0.055 162) 0%, var(--color-leather) 55%, var(--color-leather-deep) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 620;
  line-height: 1.12;
  letter-spacing: -0.02em;
  text-wrap: balance;
  margin: 0 0 var(--space-sm);
}

h1 { font-size: var(--text-xl); }
h2 { font-size: var(--text-lg); }
h3 { font-size: var(--text-md); }
h4 { font-size: var(--text-base); }

p {
  margin: 0 0 var(--space-sm);
}

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
  transition: color var(--dur-quick) var(--ease-out);
}

a:hover {
  color: var(--color-accent-deep);
  text-decoration-thickness: 2px;
}

::selection {
  background: var(--color-selection);
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: var(--space-sm);
  top: -3rem;
  z-index: var(--z-toast);
  padding: var(--space-2xs) var(--space-sm);
  background: var(--color-ink);
  color: var(--color-paper);
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-sm);
}

/* Masthead — gold-stamped on leather */

.masthead {
  position: relative;
  background: transparent;
  border-bottom: 1px solid var(--color-gold-deep);
}

.masthead::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 1px;
  background: oklch(62% 0.1 80 / 0.45);
}

.masthead-inner {
  position: relative;
  max-width: var(--page-width);
  margin: 0 auto;
  padding: var(--space-sm) var(--space-md) var(--space-xs);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  column-gap: var(--space-lg);
  row-gap: var(--space-3xs);
}

.wordmark {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-gold);
  text-decoration: none;
  letter-spacing: 0.01em;
  white-space: nowrap;
  text-shadow: 0 1px 0 oklch(15% 0.03 160 / 0.6);
  transition: color var(--dur-quick) var(--ease-out);
}

.wordmark:hover {
  color: var(--color-gold-bright);
}

.wordmark .wordmark-book {
  font-weight: 400;
}

.wordmark .wordmark-hub {
  font-weight: 680;
}

.mainnav {
  display: flex;
  flex-wrap: wrap;
  column-gap: var(--space-sm);
  row-gap: var(--space-3xs);
  font-size: var(--text-sm);
}

.mainnav a {
  color: var(--color-on-leather-muted);
  text-decoration: none;
  padding-block: 0.15rem;
  border-bottom: 1px solid transparent;
  white-space: nowrap;
  transition: color var(--dur-quick) var(--ease-out), border-color var(--dur-quick) var(--ease-out);
}

.mainnav a:hover {
  color: var(--color-on-leather);
  border-bottom-color: var(--color-gold-deep);
}

.mainnav a[aria-current="page"] {
  color: var(--color-gold);
  border-bottom-color: var(--color-gold);
}

.masthead-user {
  margin-left: auto;
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  font-size: var(--text-sm);
}

.masthead-user a {
  color: var(--color-on-leather);
  text-decoration: none;
  border-bottom: 1px solid var(--color-gold-deep);
  padding-bottom: 0.1rem;
}

.masthead-user a:hover {
  color: var(--color-gold-bright);
  border-bottom-color: var(--color-gold);
}

.masthead-signout {
  background: none;
  border: none;
  padding: 0.15rem 0;
  font: inherit;
  font-size: var(--text-sm);
  color: var(--color-on-leather-muted);
  cursor: pointer;
  border-bottom: 1px solid transparent;
}

.masthead-signout:hover {
  color: var(--color-on-leather);
  border-bottom-color: var(--color-gold-deep);
}

/* Scroll reveals — armed by reveal.js only when motion is allowed */

.reveals-on [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 500ms var(--ease-out), transform 600ms var(--ease-out);
  transition-delay: calc(var(--reveal-i, 0) * 70ms);
}

.reveals-on [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* Member gate */

.member-gate {
  max-width: 30rem;
  margin: var(--space-2xl) auto;
  text-align: center;
}

.member-gate h1 {
  font-size: var(--text-2xl);
}

.member-gate p {
  color: var(--color-ink-2);
  margin-bottom: var(--space-md);
}

/* Home — the gilded cover and the contents page */

.home-cover {
  position: relative;
  margin-top: 84px;
  padding: var(--space-2xl) var(--space-2xl) var(--space-xl);
  background:
    radial-gradient(120% 130% at 30% 0%, oklch(36% 0.055 160) 0%, var(--color-leather) 55%, var(--color-leather-deep) 100%);
  border: 2px solid var(--color-gold-deep);
  outline: 1px solid var(--color-gold-deep);
  outline-offset: -10px;
  border-radius: 8px;
  color: var(--color-on-leather);
  box-shadow: 0 14px 34px oklch(12% 0.03 165 / 0.35);
}

.home-cover-cat {
  position: absolute;
  top: -100px;
  right: 3rem;
  width: 150px;
  height: 102px;
  pointer-events: none;
}

.home-cover-kicker {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.home-cover-title {
  font-size: var(--text-display);
  color: var(--color-gold);
  text-shadow: 0 1px 0 oklch(14% 0.03 160 / 0.65);
  margin-bottom: var(--space-md);
}

.home-cover-sub {
  font-size: var(--text-md);
  color: var(--color-on-leather);
  max-width: 44ch;
  margin-bottom: var(--space-lg);
}

@media (max-width: 640px) {
  .home-cover {
    padding: var(--space-xl) var(--space-md);
  }

  .home-cover-cat {
    right: 1rem;
  }
}

/* Home — the title page and the contents page */

.home-hero {
  padding-top: var(--space-2xl);
  max-width: 46rem;
}

.home-title {
  font-size: var(--text-display);
  margin-bottom: var(--space-md);
}

.home-sub {
  font-size: var(--text-md);
  color: var(--color-ink-2);
  margin-bottom: var(--space-lg);
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.home-toc {
  margin-top: var(--space-xl);
  max-width: 40rem;
}

.home-toc-heading {
  font-size: var(--text-md);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 560;
  color: var(--color-ink-2);
  border-bottom: var(--rule-strong);
  padding-bottom: var(--space-2xs);
  margin-bottom: var(--space-2xs);
}

.toc-line {
  display: flex;
  align-items: baseline;
  gap: 0.8ch;
  padding-block: 0.6rem;
  text-decoration: none;
  color: var(--color-ink);
}

.toc-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-2);
  min-width: 2.2ch;
}

.toc-title {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 560;
  white-space: nowrap;
  transition: color var(--dur-quick) var(--ease-out);
}

.toc-dots {
  flex: 1;
  min-width: 2ch;
  border-bottom: 2px dotted var(--color-rule-strong);
  transform: translateY(-0.3em);
}

.toc-note {
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  white-space: nowrap;
}

.toc-line:hover .toc-title {
  color: var(--color-accent-deep);
}

.toc-line:hover .toc-dots {
  border-bottom-color: var(--color-accent);
}

@media (max-width: 560px) {
  .toc-note {
    display: none;
  }
}

.toc-keeper {
  display: flex;
  justify-content: flex-end;
  padding-right: var(--space-lg);
  margin-top: -4px;
  max-width: 40rem;
}

.keeper-ear {
  transform-origin: 82px 26px;
  transform-box: view-box;
  animation: keeper-twitch 280ms var(--ease-in-out) 900ms both;
}

@keyframes keeper-twitch {
  0%, 100% { transform: rotate(0deg); }
  40% { transform: rotate(-10deg); }
}

/* Page frame */

.content {
  flex: 1;
  width: 100%;
  max-width: var(--page-width);
  margin: var(--space-lg) auto 0;
  padding: var(--space-xl) var(--space-xl) var(--space-2xl);
  background: var(--color-paper);
  border-radius: 6px 6px 0 0;
  box-shadow:
    0 -1px 0 oklch(100% 0 0 / 0.25) inset,
    0 18px 45px oklch(12% 0.03 165 / 0.5),
    0 4px 14px oklch(12% 0.03 165 / 0.4);
}

@media (max-width: 760px) {
  .content {
    margin-top: var(--space-sm);
    padding: var(--space-lg) var(--space-md) var(--space-xl);
  }
}

.page-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2xs) var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-xs);
  border-bottom: var(--rule-hairline);
}

.page-head h1 {
  margin: 0;
}

.page-head-note {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-2);
  letter-spacing: 0.02em;
}

.prose {
  max-width: var(--measure);
}

.muted {
  color: var(--color-ink-2);
}

.mono-data {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-sm);
}

/* Colophon */

.colophon {
  width: 100%;
  max-width: var(--page-width);
  margin: 0 auto;
  padding: var(--space-md) var(--space-md) var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2xs) var(--space-md);
  color: var(--color-on-leather-muted);
  font-size: var(--text-sm);
}

/* Buttons */

.btn {
  touch-action: manipulation;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5ch;
  padding: 0.55rem 1.15rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--dur-quick) var(--ease-out), border-color var(--dur-quick) var(--ease-out), color var(--dur-quick) var(--ease-out), transform 80ms var(--ease-out);
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled,
.btn[aria-busy="true"] {
  cursor: not-allowed;
  opacity: 0.55;
}

.btn[aria-busy="true"]::after {
  content: "…";
}

.btn-primary {
  background: linear-gradient(to bottom, var(--color-gold-bright), var(--color-gold));
  color: var(--color-gold-ink);
  border-color: var(--color-gold-deep);
  box-shadow: 0 1px 3px oklch(20% 0.04 90 / 0.35);
}

.btn-primary:hover:not(:disabled):not([aria-busy="true"]) {
  background: linear-gradient(to bottom, oklch(88% 0.13 90), var(--color-gold-bright));
}

.btn-quiet {
  background: transparent;
  border-color: var(--color-rule-strong);
  color: var(--color-ink);
}

.btn-quiet:hover:not(:disabled):not([aria-busy="true"]) {
  border-color: var(--color-accent);
  color: var(--color-accent-deep);
}

.btn-danger {
  background: transparent;
  border-color: var(--color-danger);
  color: var(--color-danger);
}

.btn-danger:hover:not(:disabled) {
  background: var(--color-danger);
  color: var(--color-paper);
}

/* Forms */

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xs);
  font-size: var(--text-sm);
  color: var(--color-ink);
}

.field input,
.field textarea,
.field select {
  font: inherit;
  font-size: var(--text-base);
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--color-border-input);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-ink);
  transition: border-color var(--dur-quick) var(--ease-out);
}

.field input:hover,
.field textarea:hover {
  border-color: var(--color-accent);
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--color-ink-2);
  font-style: italic;
}

.field input:user-invalid {
  border-color: var(--color-danger);
}

.form-message {
  min-height: 1.4rem;
  margin: 0;
  color: var(--color-danger);
  font-size: var(--text-sm);
}

.form-message.is-success {
  color: var(--color-success);
}

/* Sign-in stage */

.auth-stage {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: var(--space-2xl);
  align-items: start;
  padding-top: var(--space-lg);
}

.auth-intro {
  padding-top: var(--space-2xl);
}

.auth-intro h1 {
  font-size: var(--text-2xl);
}

.auth-intro-copy {
  max-width: 36ch;
}

.auth-desk {
  position: relative;
  padding-top: 118px;
  max-width: 30rem;
}

.auth-card {
  position: relative;
  background: var(--color-surface);
  border: var(--rule-hairline);
  border-radius: var(--radius-card);
  padding: var(--space-lg);
}

.auth-tabs {
  display: flex;
  gap: var(--space-md);
  border-bottom: var(--rule-hairline);
  margin-bottom: var(--space-md);
}

.auth-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  padding: 0 0 var(--space-2xs);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 560;
  color: var(--color-ink-2);
  cursor: pointer;
  transition: color var(--dur-quick) var(--ease-out), border-color var(--dur-quick) var(--ease-out);
}

.auth-tab:hover {
  color: var(--color-ink);
}

.auth-tab[aria-pressed="true"] {
  color: var(--color-ink);
  border-bottom-color: var(--color-accent);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.auth-form .btn {
  align-self: flex-start;
  margin-top: var(--space-2xs);
}

.password-wrap {
  position: relative;
  display: block;
}

.password-wrap input {
  width: 100%;
  padding-right: 4.4rem;
}

.pw-toggle {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.45rem;
  font: inherit;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-accent);
  cursor: pointer;
}

.pw-toggle:hover {
  color: var(--color-accent-deep);
}

@media (max-width: 860px) {
  .auth-stage {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .auth-intro {
    padding-top: 0;
  }

  .auth-desk {
    padding-top: 98px;
  }

  .auth-cat {
    width: 140px;
    height: 96px;
    top: -95px;
    right: 1rem;
  }
}

@media (max-width: 640px) {
  .auth-intro-copy {
    display: none;
  }

  .auth-intro h1 {
    font-size: var(--text-xl);
    margin-bottom: 0;
  }
}

/* The reading cat — perched on the sign-in card, state-driven */

.auth-cat {
  position: absolute;
  top: -115px;
  right: 1.5rem;
  width: 170px;
  height: 116px;
  pointer-events: none;
  transition: transform 1050ms cubic-bezier(0.3, 0.75, 0.35, 1), opacity 220ms var(--ease-out);
}

.auth-cat[data-state="offstage"] {
  transform: translateX(210px);
  opacity: 0;
  transition: none;
}

.cat-hop,
.cat-figure {
  transform-origin: 50% 100%;
}

.auth-cat[data-state="arriving"] .cat-hop {
  animation: cat-hop 950ms cubic-bezier(0.45, 0.05, 0.4, 1) both;
}

.auth-cat[data-state="arriving"] .cat-figure {
  animation: cat-land 260ms 800ms var(--ease-out) both;
}

@keyframes cat-hop {
  0% { transform: translateY(-30px); }
  40% { transform: translateY(-54px); }
  75% { transform: translateY(-8px); }
  88% { transform: translateY(3px); }
  100% { transform: translateY(0); }
}

@keyframes cat-land {
  0% { transform: scaleY(1); }
  40% { transform: scaleY(0.94) scaleX(1.04); }
  100% { transform: scale(1); }
}

.cat-tail {
  transform-origin: 186px 140px;
}

.auth-cat[data-state="reading"] .cat-tail,
.auth-cat[data-state="hiding"] .cat-tail {
  animation: cat-tail-sway 6s var(--ease-in-out) infinite;
}

.auth-cat[data-state="peeking"] .cat-tail {
  animation: cat-tail-sway 2.6s var(--ease-in-out) infinite;
}

@keyframes cat-tail-sway {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(8deg); }
}

.cat-bod {
  transform-origin: 50% 100%;
}

.auth-cat[data-state="reading"] .cat-bod {
  animation: cat-breathe 3.6s var(--ease-in-out) infinite;
}

@keyframes cat-breathe {
  0%, 100% { transform: scaleY(1); }
  50% { transform: scaleY(1.02); }
}

.cat-book {
  opacity: 0;
  transform: translateY(8px) scale(0.94);
  transform-origin: 50% 100%;
  transition: transform 340ms var(--ease-out), opacity 240ms var(--ease-out);
}

.auth-cat[data-state="reading"] .cat-book {
  opacity: 1;
  transform: translateY(0) scale(1);
  transition-delay: 120ms;
}

.auth-cat[data-state="hiding"] .cat-book {
  opacity: 1;
  transform: translateY(-42px) scale(1);
  transition: transform 340ms cubic-bezier(0.34, 1.25, 0.64, 1), opacity 240ms var(--ease-out);
}

.auth-cat[data-state="peeking"] .cat-book {
  opacity: 1;
  transform: translateY(3px) rotate(3deg);
}

.cat-head {
  transform-origin: 112px 96px;
  transition: transform 320ms var(--ease-out);
}

.auth-cat[data-state="peeking"] .cat-head {
  transform: rotate(-5deg);
}

.cat-eyes-open,
.cat-eyes-reading {
  transition: opacity 120ms var(--ease-out);
}

.cat-eyes-open {
  opacity: 0;
}

.auth-cat[data-state="peeking"] .cat-eyes-open {
  opacity: 1;
}

.auth-cat[data-state="peeking"] .cat-eyes-reading {
  opacity: 0;
}

/* Surfaces */

.panel {
  background: var(--color-surface);
  border: var(--rule-hairline);
  border-radius: var(--radius-card);
  padding: var(--space-md);
}

.empty-state {
  border: 1px dashed var(--color-rule-strong);
  border-radius: var(--radius-card);
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  color: var(--color-ink-2);
  max-width: 34rem;
  margin: var(--space-lg) auto;
}

.empty-state h2 {
  color: var(--color-ink);
  font-size: var(--text-md);
}

.empty-state p {
  margin-bottom: 0;
}

/* The library — card catalog */

.catalog-search {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.catalog-search-field {
  flex: 1 1 18rem;
  max-width: 28rem;
}

.book-list {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding-left: 20px;
}

.catalog-rod {
  position: absolute;
  left: 6px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: 1px;
  background: var(--color-rule-strong);
  transform-origin: top;
  animation: catalog-rod-draw 340ms var(--ease-out) 360ms both;
}

@keyframes catalog-rod-draw {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}

.catalog-card {
  position: relative;
  display: block;
  background: var(--color-surface);
  border: var(--rule-hairline);
  border-radius: var(--radius-card);
  padding: var(--space-sm) var(--space-md);
  text-decoration: none;
  color: var(--color-ink);
  animation: catalog-card-deal 220ms var(--ease-out) both;
  animation-delay: calc(var(--card-i, 0) * 40ms);
  transition: transform var(--dur-quick) var(--ease-out), border-color var(--dur-quick) var(--ease-out);
}

@keyframes catalog-card-deal {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}

.catalog-card:hover {
  border-color: var(--color-accent);
  transform: translateX(3px);
}

.catalog-card::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 50%;
  width: 8px;
  height: 8px;
  transform: translateY(-50%);
  border: 1.5px solid var(--color-rule-strong);
  border-radius: 50%;
  background: var(--color-paper);
}

.catalog-card-title {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 560;
  padding-right: 9rem;
}

.catalog-card-author {
  display: block;
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

.catalog-card-note {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  color: var(--color-ink-2);
}

@media (max-width: 640px) {
  .catalog-card-title {
    padding-right: 0;
  }

  .catalog-card-note {
    position: static;
    display: block;
    margin-top: var(--space-3xs);
  }
}

.catalog-card-skeleton {
  height: 4.4rem;
}

.acquisitions {
  margin-top: var(--space-xl);
  border-top: var(--rule-hairline);
  padding-top: var(--space-md);
}

.acquisitions summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 560;
  color: var(--color-ink-2);
}

.acquisitions summary:hover {
  color: var(--color-ink);
}

.acquisitions-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 30rem;
  margin-top: var(--space-md);
}

.acquisitions-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.acquisitions-row .field {
  flex: 1;
}

.acquisitions-form .btn {
  align-self: flex-start;
}

/* One book — with its ribbon */

.book-body {
  position: relative;
  border-top: var(--rule-strong);
  padding-top: var(--space-md);
  max-width: 44rem;
}

.book-ribbon {
  position: absolute;
  top: -1px;
  right: 2rem;
  transform: scaleY(0.24);
  transform-origin: top center;
  transition: transform 340ms var(--ease-out);
}

.book-ribbon[data-ribbon="reading"] {
  transform: scaleY(1);
}

.book-head {
  margin-bottom: var(--space-md);
  padding-right: 4rem;
}

.book-head h1 {
  margin-bottom: var(--space-3xs);
}

.book-authors {
  font-style: italic;
  font-size: var(--text-md);
  color: var(--color-ink-2);
  margin-bottom: var(--space-3xs);
}

.book-estimate {
  color: var(--color-accent-deep);
  margin: var(--space-md) 0;
}

.book-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.liked-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5ch;
  font-size: var(--text-sm);
}

.liked-label input {
  accent-color: var(--color-accent);
  width: 1rem;
  height: 1rem;
}

.finis-mark {
  animation: finis-press 220ms var(--ease-out) both;
}

.finis-mark text {
  font-family: var(--font-display);
}

@keyframes finis-press {
  from {
    opacity: 0;
    transform: scale(1.15) rotate(-3deg);
  }
  to {
    opacity: 1;
    transform: scale(1) rotate(-1deg);
  }
}

/* The librarian's desk — call slip and recommendation cards */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.rec-intro {
  margin-bottom: var(--space-md);
}

.call-slip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3xs);
  width: 240px;
  margin: var(--space-lg) 0 var(--space-md);
  padding: var(--space-sm) var(--space-md) var(--space-md);
  background: var(--color-surface);
  border: var(--rule-strong);
  border-bottom: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 5px), 96% 100%, 91% calc(100% - 4px), 85% 100%, 79% calc(100% - 5px), 73% 100%, 67% calc(100% - 4px), 61% 100%, 55% calc(100% - 5px), 49% 100%, 43% calc(100% - 4px), 37% 100%, 31% calc(100% - 5px), 25% 100%, 19% calc(100% - 4px), 13% 100%, 7% calc(100% - 5px), 0 100%);
  animation: call-slip-stamp 220ms var(--ease-out) both;
  transition: transform 340ms var(--ease-in-out), opacity 340ms var(--ease-in-out);
}

@keyframes call-slip-stamp {
  from {
    opacity: 0;
    transform: scale(1.06) rotate(-1.5deg);
  }
  to {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
}

.call-slip-away {
  transform: translateY(-16px);
  opacity: 0;
}

.call-slip-head {
  font-family: var(--font-display);
  font-weight: 620;
  font-size: var(--text-sm);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ink);
  border-bottom: var(--rule-hairline);
  padding-bottom: var(--space-3xs);
  width: 100%;
  text-align: center;
}

.call-slip-line {
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

.call-slip-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 2.6rem;
  font-weight: 500;
  line-height: 1.1;
  color: var(--color-accent-deep);
}

.call-slip-roll {
  animation: call-slip-num-roll 220ms var(--ease-out);
}

@keyframes call-slip-num-roll {
  from {
    opacity: 0;
    transform: translateY(0.45em);
  }
}

.call-slip-foot {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-2);
}

.recommendations-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  max-width: 44rem;
}

.rec-card {
  background: var(--color-surface);
  border: var(--rule-hairline);
  border-radius: var(--radius-card);
  padding: var(--space-sm) var(--space-md);
  animation: catalog-card-deal 220ms var(--ease-out) both;
  animation-delay: calc(var(--card-i, 0) * 40ms);
}

.rec-card-title {
  margin-bottom: var(--space-3xs);
}

.rec-card-authors {
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  margin-bottom: var(--space-2xs);
}

.rec-card-reason {
  font-size: var(--text-sm);
  border-left: 2px solid var(--color-rule);
  padding-left: var(--space-xs);
  margin-bottom: var(--space-2xs);
}

.rec-card a {
  font-size: var(--text-sm);
}

/* The forum — letters to the room */

.compose {
  max-width: 36rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.compose-heading {
  font-size: var(--text-md);
  margin: 0;
}

.compose-row {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.compose-link {
  flex: 1 1 14rem;
}

.compose .btn {
  align-self: flex-start;
}

.anonymous-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5ch;
  font-size: var(--text-sm);
  padding-bottom: 0.55rem;
}

.anonymous-label input {
  accent-color: var(--color-accent);
  width: 1rem;
  height: 1rem;
}

.post-list {
  display: flex;
  flex-direction: column;
  max-width: 44rem;
}

.post-item {
  padding: var(--space-md) 0;
  border-top: var(--rule-hairline);
}

.post-title {
  font-size: var(--text-md);
  margin-bottom: var(--space-3xs);
}

.post-meta {
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  margin-bottom: var(--space-2xs);
}

.author-link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-quick) var(--ease-out), border-bottom-color var(--dur-quick) var(--ease-out);
}

.author-link:hover {
  color: var(--color-accent-deep);
  border-bottom-color: var(--color-accent);
}

.post-body {
  margin-bottom: var(--space-2xs);
}

.post-video-link {
  font-size: var(--text-sm);
}

.post-footer {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-2xs);
}

.vote-controls {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.manicule-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5ch;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.35rem;
  font: inherit;
  cursor: pointer;
}

.manicule {
  fill: none;
  stroke: var(--color-ink-2);
  stroke-width: 1.25;
  stroke-linejoin: round;
  transition: stroke var(--dur-quick) var(--ease-out), fill var(--dur-quick) var(--ease-out);
}

.manicule-down {
  transform: rotate(90deg);
}

.manicule-btn:hover .manicule {
  stroke: var(--color-accent-deep);
}

.manicule-stamped .manicule {
  fill: var(--color-accent-wash);
  stroke: var(--color-accent-deep);
}

.manicule-stamped {
  animation: manicule-stamp 220ms var(--ease-out);
}

@keyframes manicule-stamp {
  0% {
    transform: scale(1.3) rotate(-8deg);
    opacity: 0.4;
  }
  100% {
    transform: scale(1) rotate(0deg);
    opacity: 1;
  }
}

.manicule-count {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

.manicule-count-roll {
  animation: call-slip-num-roll 140ms var(--ease-out);
}

.comments-toggle {
  background: none;
  border: none;
  padding: 0.25rem 0;
  font: inherit;
  font-size: var(--text-sm);
  color: var(--color-accent);
  cursor: pointer;
  border-bottom: 1px solid transparent;
}

.comments-toggle:hover {
  color: var(--color-accent-deep);
  border-bottom-color: var(--color-accent);
}

.comments-pane {
  margin: var(--space-sm) 0 0 var(--space-md);
  padding-left: var(--space-md);
  border-left: 2px solid var(--color-rule);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.comment-item {
  font-size: var(--text-sm);
}

.comment-author {
  font-weight: 700;
  margin-bottom: 0;
}

.comment-body {
  margin-bottom: var(--space-3xs);
}

.comment-form {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2xs);
}

.comment-form input {
  flex: 1 1 14rem;
  font: inherit;
  font-size: var(--text-sm);
  padding: 0.45rem 0.6rem;
  border: var(--rule-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.comment-form input::placeholder {
  font-style: italic;
  color: var(--color-ink-2);
  opacity: 0.75;
}

.comment-form .form-message {
  flex-basis: 100%;
  min-height: 0;
}

.load-more {
  margin-top: var(--space-md);
}

/* Letters — direct messages */

.messages-layout {
  display: grid;
  grid-template-columns: 16rem minmax(0, 1fr);
  gap: var(--space-lg);
  align-items: start;
}

@media (max-width: 760px) {
  .messages-layout {
    grid-template-columns: 1fr;
  }
}

.conversation-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.conversation-empty {
  margin: 0;
  padding: var(--space-md);
}

.conversation-item {
  position: relative;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2xs);
  padding: 0.6rem 0.9rem;
  background: var(--color-surface);
  border: var(--rule-hairline);
  border-radius: var(--radius-card);
  font: inherit;
  text-align: left;
  color: var(--color-ink);
  cursor: pointer;
  transition: border-color var(--dur-quick) var(--ease-out);
}

.conversation-item:hover {
  border-color: var(--color-accent);
}

.conversation-item[aria-current="true"] {
  border-color: var(--color-accent-deep);
}

.conversation-name {
  font-weight: 600;
}

.unread-count {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  color: var(--color-accent-deep);
}

.dog-ear {
  position: absolute;
  top: -1px;
  right: -1px;
  width: 18px;
  height: 18px;
  background: var(--color-paper-3);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  border-radius: 0 var(--radius-card) 0 0;
  transform-origin: top right;
  transition: transform 220ms var(--ease-in-out), opacity 160ms var(--ease-out);
}

.dog-ear-unfold {
  transform: scale(0);
  opacity: 0;
}

.conversation-peer {
  font-size: var(--text-md);
  margin-bottom: var(--space-2xs);
}

.conversation-messages {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  min-height: 12rem;
  max-height: 55vh;
  overflow-y: auto;
  padding: var(--space-md);
  background: var(--color-surface);
  border: var(--rule-hairline);
  border-radius: var(--radius-card);
  margin-bottom: var(--space-sm);
}

.conversation-hint {
  font-style: italic;
  margin: auto;
}

.message-block {
  max-width: 85%;
}

.message-mine {
  align-self: flex-end;
  text-align: right;
}

.message-from {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-2);
  margin-bottom: 0;
}

.message-mine .message-from {
  color: var(--color-accent-deep);
}

.message-body {
  margin-bottom: 0;
}

.send-form {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: var(--space-2xs);
}

.new-convo-form {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: var(--space-2xs);
  margin-bottom: var(--space-md);
}

.new-convo-field {
  flex: 1 1 18rem;
}

.send-body {
  flex: 1 1 16rem;
}

.send-link {
  flex: 0 1 11rem;
}

/* Reading circles */

.groups-forms {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 24rem));
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.groups-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.groups-form .btn {
  align-self: flex-start;
}

.group-list-heading {
  font-size: var(--text-md);
  border-bottom: var(--rule-hairline);
  padding-bottom: var(--space-2xs);
  max-width: 34rem;
}

.group-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  max-width: 34rem;
}

.group-item {
  display: block;
  padding: 0.6rem 0.9rem;
  background: var(--color-surface);
  border: var(--rule-hairline);
  border-radius: var(--radius-card);
  text-decoration: none;
  color: var(--color-ink);
  font-weight: 600;
  transition: border-color var(--dur-quick) var(--ease-out);
}

.group-item:hover {
  border-color: var(--color-accent);
}

.group-members {
  font-style: italic;
  margin-bottom: var(--space-sm);
}

.group-messages {
  max-width: 44rem;
}

.group-panel .send-form {
  max-width: 44rem;
}

.consensus-panel {
  margin-top: var(--space-xl);
  border-top: var(--rule-strong);
  padding-top: var(--space-md);
  max-width: 44rem;
}

.consensus-note {
  max-width: 40ch;
}

.consensus-results {
  list-style: none;
  padding: 0;
  margin: var(--space-md) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.consensus-results li {
  background: var(--color-surface);
  border: var(--rule-hairline);
  border-radius: var(--radius-card);
  padding: var(--space-sm) var(--space-md);
}

.consensus-results li a {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 560;
  text-decoration: none;
  color: var(--color-ink);
}

.consensus-results li a:hover {
  color: var(--color-accent-deep);
}

.consensus-results li p {
  font-size: var(--text-sm);
  border-left: 2px solid var(--color-rule);
  padding-left: var(--space-xs);
  margin: var(--space-2xs) 0 0;
}

/* Your ledger */

.ledger-top {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
  align-items: flex-start;
  margin-bottom: var(--space-sm);
}

.datedue-card {
  display: flex;
  flex-direction: column;
  width: 240px;
  background: var(--color-surface);
  border: var(--rule-strong);
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
}

.datedue-head {
  font-family: var(--font-display);
  font-weight: 620;
  font-size: var(--text-sm);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-align: center;
  border-bottom: var(--rule-strong);
  padding-bottom: var(--space-3xs);
}

.datedue-rows {
  list-style: none;
  margin: 0;
  padding: 0;
}

.datedue-stamp {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-sm);
  color: var(--color-accent-deep);
  opacity: 0.85;
  border-bottom: var(--rule-hairline);
  padding: 0.35rem 0 0.25rem;
  transform: rotate(var(--tilt, 0deg));
}

.datedue-stamp:last-child {
  animation: datedue-press 220ms 340ms var(--ease-out) backwards;
}

@keyframes datedue-press {
  from {
    opacity: 0;
    transform: scale(1.2) rotate(var(--tilt, 0deg));
  }
}

.datedue-foot {
  font-style: italic;
  font-size: var(--text-xs);
  color: var(--color-ink-2);
  padding-top: var(--space-2xs);
}

.ledger-figures {
  display: flex;
  gap: var(--space-lg);
  margin: 0;
  padding-top: var(--space-sm);
}

.ledger-figure dt {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-2);
}

.ledger-figure dd {
  margin: 0;
  font-size: var(--text-xl);
  color: var(--color-ink);
}

.ledger-heading {
  font-size: var(--text-md);
  border-bottom: var(--rule-hairline);
  padding-bottom: var(--space-3xs);
  margin-top: var(--space-lg);
  max-width: 40rem;
}

.badges-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  max-width: 40rem;
}

.badge-medal {
  position: relative;
  width: 68px;
  height: 68px;
  cursor: default;
  outline: none;
}

.badge-coin {
  width: 100%;
  height: 100%;
  display: block;
  transition: transform 220ms var(--ease-out), filter 220ms var(--ease-out);
}

/* earned: a struck gold seal */
.badge-medal[data-earned="true"] .badge-coin {
  color: var(--color-gold-ink);
  filter: drop-shadow(0 2px 3px oklch(24% 0.04 85 / 0.28));
}
.badge-medal[data-earned="true"] .coin-ring {
  fill: var(--color-gold);
  stroke: var(--color-gold-deep);
  stroke-width: 1.5;
}
.badge-medal[data-earned="true"] .coin-ring-inner {
  fill: none;
  stroke: var(--color-gold-bright);
  stroke-width: 1;
  opacity: 0.8;
}

/* locked: a greyed, pressed-out blank */
.badge-medal[data-earned="false"] .badge-coin {
  color: var(--color-ink-2);
  filter: grayscale(1);
  opacity: 0.42;
}
.badge-medal[data-earned="false"] .coin-ring {
  fill: var(--color-paper-3);
  stroke: var(--color-rule-strong);
  stroke-width: 1.5;
}
.badge-medal[data-earned="false"] .coin-ring-inner {
  fill: none;
  stroke: var(--color-rule-strong);
  stroke-width: 1;
  opacity: 0.6;
}

.glyph {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.glyph-fill {
  fill: currentColor;
  stroke: none;
}

.coin-lock {
  fill: none;
  stroke: var(--color-ink-2);
  stroke-width: 1.6;
  stroke-linejoin: round;
  opacity: 0.75;
}

/* hover / focus lifts the coin and reveals the tooltip */
.badge-medal:hover .badge-coin,
.badge-medal:focus-visible .badge-coin {
  transform: translateY(-3px) scale(1.05);
}
.badge-medal[data-earned="true"]:hover .badge-coin,
.badge-medal[data-earned="true"]:focus-visible .badge-coin {
  filter: drop-shadow(0 5px 7px oklch(24% 0.04 85 / 0.32));
}
.badge-medal[data-earned="false"]:hover .badge-coin,
.badge-medal[data-earned="false"]:focus-visible .badge-coin {
  opacity: 0.62;
}
.badge-medal:focus-visible {
  border-radius: 999px;
  box-shadow: 0 0 0 3px var(--color-focus);
}

.badge-tip {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  min-width: 12rem;
  max-width: 16rem;
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: var(--space-2xs) var(--space-xs);
  background: var(--color-leather);
  color: var(--color-on-leather);
  border: 1px solid var(--color-leather-edge);
  border-radius: var(--radius-card);
  box-shadow: 0 6px 20px oklch(24% 0.046 168 / 0.35);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 160ms var(--ease-out), transform 160ms var(--ease-out);
}

.badge-tip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--color-leather);
}

.badge-medal:hover .badge-tip,
.badge-medal:focus-visible .badge-tip,
.badge-medal:focus-within .badge-tip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.badge-tip-name {
  font-family: var(--font-display);
  font-weight: 620;
  font-size: var(--text-sm);
  color: var(--color-gold-bright);
}

.badge-tip-desc {
  font-size: var(--text-xs);
  color: var(--color-on-leather);
}

.badge-tip-status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--color-on-leather-muted);
  padding-top: 0.15rem;
}

.badges-foot {
  font-size: var(--text-xs);
  margin-top: var(--space-2xs);
}

.liked-authors {
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 30rem;
}

.liked-author {
  display: flex;
  align-items: baseline;
  gap: 0.8ch;
  padding-block: 0.35rem;
}

.liked-author-name {
  font-weight: 600;
}

.journey-timeline {
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 40rem;
}

.journey-item {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: 0.5rem 0;
  border-bottom: var(--rule-hairline);
}

.journey-date {
  color: var(--color-ink-2);
  min-width: 6.5rem;
}

.journey-title {
  font-family: var(--font-display);
  font-weight: 560;
}

.journey-genres {
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

/* The reading exam */

.exam-intro {
  margin-bottom: var(--space-md);
}

.exam-text {
  background: var(--color-surface);
  border: var(--rule-hairline);
  border-radius: var(--radius-card);
  padding: var(--space-lg) var(--space-xl);
  margin: var(--space-md) 0;
  font-size: var(--text-md);
  line-height: 1.7;
}

.message-line {
  margin: 0;
  font-size: var(--text-sm);
}

@media (max-width: 480px) {
  .exam-text {
    padding: var(--space-md);
  }
}

.exam-text::first-letter {
  font-family: var(--font-display);
  font-size: 3.2em;
  font-weight: 620;
  float: left;
  line-height: 0.85;
  padding-right: 0.12em;
  color: var(--color-accent-deep);
}

.exam-close {
  display: flex;
  align-items: flex-end;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.exam-result {
  font-size: var(--text-md);
  margin: 0 0 var(--space-2xs);
  max-width: 30rem;
}

.exam-cat {
  width: 132px;
  height: 90px;
  transition: transform 700ms cubic-bezier(0.3, 0.75, 0.35, 1), opacity 200ms var(--ease-out);
}

.exam-cat[data-state="absent"] {
  transform: translateX(60px) translateY(10px);
  opacity: 0;
  transition: none;
  pointer-events: none;
}

.exam-cat[data-state="arrived"] {
  transform: translateX(0) translateY(0);
  opacity: 1;
}

.exam-cat-figure {
  transform-origin: 50% 100%;
}

.exam-cat[data-state="arrived"] .exam-cat-figure {
  animation: exam-cat-settle 320ms 600ms var(--ease-out) both;
}

@keyframes exam-cat-settle {
  0% { transform: scaleY(1); }
  40% { transform: scaleY(0.95) scaleX(1.03); }
  100% { transform: scale(1); }
}

.exam-cat-lids ellipse {
  transform: scaleY(0);
  transform-origin: center 68px;
  transform-box: view-box;
}

.exam-cat[data-state="arrived"] .exam-cat-lids ellipse {
  animation: exam-blink 1.3s 1200ms var(--ease-in-out) both;
}

@keyframes exam-blink {
  0%, 100% { transform: scaleY(0); }
  30%, 70% { transform: scaleY(1); }
}

/* A reader's bookplate */

.bookplate {
  max-width: 30rem;
  margin: var(--space-lg) 0;
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-surface);
  border: var(--rule-strong);
  border-radius: var(--radius-sm);
  box-shadow: inset 0 0 0 4px var(--color-surface), inset 0 0 0 5px var(--color-rule);
}

.bookplate-label {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 620;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent-deep);
  margin-bottom: var(--space-2xs);
}

.bookplate h1 {
  margin-bottom: var(--space-3xs);
}

.bookplate-username {
  color: var(--color-ink-2);
  margin-bottom: var(--space-sm);
}

.bookplate-counts {
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  margin-bottom: var(--space-2xs);
}

.bookplate-prefs {
  font-style: italic;
  margin-bottom: var(--space-md);
}

.bookplate-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* Loading — the book-flip loader is the single hero loader of a page */

.book-loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xl) var(--space-md);
}

.book-loader-book {
  position: relative;
  width: 92px;
  height: 60px;
  perspective: 520px;
  transform-style: preserve-3d;
}

.book-loader-board {
  position: absolute;
  inset: 0;
}

.book-loader-board::before,
.book-loader-board::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50%;
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0 9px,
      var(--color-rule) 9px 10px
    ) 50% 55% / 70% 60% no-repeat,
    var(--color-surface);
  border: 1px solid var(--color-rule-strong);
}

.book-loader-board::before {
  left: 0;
  border-radius: 6px 2px 2px 6px;
  border-right: none;
  box-shadow: inset -8px 0 8px -8px oklch(60% 0.03 80 / 0.55);
}

.book-loader-board::after {
  right: 0;
  border-radius: 2px 6px 6px 2px;
  border-left: none;
  box-shadow: inset 8px 0 8px -8px oklch(60% 0.03 80 / 0.55);
}

.book-loader-page {
  position: absolute;
  left: 50%;
  top: 3%;
  width: 46%;
  height: 94%;
  transform-origin: left center;
  border-radius: 2px 5px 5px 2px;
  background: linear-gradient(to right, var(--color-paper-2), var(--color-surface) 55%);
  border: 1px solid var(--color-rule);
  border-left: none;
  opacity: 0;
  animation: book-loader-flip 1.7s var(--ease-in-out) infinite;
  animation-delay: calc(var(--page) * 150ms);
}

@keyframes book-loader-flip {
  0% { transform: rotateY(0deg); opacity: 0; }
  8% { transform: rotateY(-4deg); opacity: 1; }
  50% { transform: rotateY(-176deg); opacity: 1; }
  58% { transform: rotateY(-180deg); opacity: 0; }
  100% { transform: rotateY(-180deg); opacity: 0; }
}

.book-loader-label {
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

/* Plain loading */

.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--color-paper-3);
  border-radius: var(--radius-sm);
  min-height: 1rem;
}

.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, oklch(99% 0.006 95 / 0.7), transparent);
  animation: skeleton-sweep 1.6s var(--ease-in-out) infinite;
}

@keyframes skeleton-sweep {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

.queue-state {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-sm);
  color: var(--color-accent-deep);
}

/* Book covers — a tidy paper frame, with a green-leather spine as fallback */

.book-cover {
  flex: none;
  width: 46px;
  height: 68px;
  object-fit: cover;
  border-radius: 2px;
  background: var(--color-paper-3);
  border: 1px solid var(--color-rule-strong);
  box-shadow: 0 1px 3px oklch(20% 0.04 90 / 0.28);
}

.book-cover--lg {
  width: 120px;
  height: 178px;
}

.book-cover--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0.25rem;
  overflow: hidden;
  background: linear-gradient(105deg, var(--color-leather-edge), var(--color-leather) 55%, var(--color-leather-deep));
  border-color: var(--color-gold-deep);
  box-shadow: inset 0 0 0 1px oklch(62% 0.1 80 / 0.32), 0 1px 3px oklch(20% 0.04 90 / 0.28);
}

.book-cover-spine-title {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 560;
  line-height: 1.12;
  text-align: center;
  color: var(--color-gold);
  text-shadow: 0 1px 0 oklch(15% 0.03 160 / 0.55);
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.book-cover--lg.book-cover--placeholder {
  padding: 0.65rem 0.45rem;
}

.book-cover--lg .book-cover-spine-title {
  font-size: var(--text-sm);
  -webkit-line-clamp: 7;
}

/* Cover slots on catalog cards and the book-detail head */

.catalog-card {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.catalog-card-text {
  flex: 1;
  min-width: 0;
}

.book-head {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.book-head-text {
  flex: 1;
  min-width: 0;
}

@media (max-width: 480px) {
  .book-head {
    flex-direction: column;
  }
}

/* The Explain component — removable teaching notes for the demo */

.explain-toggle {
  background: none;
  border: 1px solid var(--color-gold-deep);
  border-radius: 999px;
  padding: 0.15rem 0.75rem;
  font: inherit;
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-on-leather-muted);
  cursor: pointer;
  transition: color var(--dur-quick) var(--ease-out), border-color var(--dur-quick) var(--ease-out);
}

.explain-toggle::before {
  content: "";
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  margin-right: 0.5ch;
  background: var(--color-on-leather-muted);
  vertical-align: baseline;
}

.explain-toggle:hover {
  color: var(--color-on-leather);
}

.explain-toggle[aria-pressed="true"] {
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.explain-toggle[aria-pressed="true"]::before {
  background: var(--color-gold-bright);
  box-shadow: 0 0 4px var(--color-gold);
}

.explain {
  display: none;
}

body[data-explain="on"] .explain {
  display: block;
  font-style: italic;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-2);
  max-width: var(--measure);
  margin: var(--space-2xs) 0 var(--space-sm);
  padding: var(--space-2xs) var(--space-sm);
  border-left: 2px solid var(--color-gold-deep);
  background: oklch(78% 0.115 85 / 0.08);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

body[data-explain="on"] .explain::before {
  content: "?";
  font-family: var(--font-mono);
  font-style: normal;
  font-weight: 600;
  font-size: 0.8em;
  color: var(--color-gold-ink);
  background: var(--color-gold);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35em;
  height: 1.35em;
  margin-right: 0.6ch;
  vertical-align: baseline;
}

/* Motion discipline */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Notification bell — a gold-stamped alert in the masthead */

.notif-bell {
  position: relative;
  align-self: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem;
  background: none;
  border: none;
  border-radius: 999px;
  color: var(--color-on-leather-muted);
  cursor: pointer;
  transition: color var(--dur-quick) var(--ease-out);
}

.notif-bell:hover,
.notif-bell[aria-expanded="true"] {
  color: var(--color-gold);
}

.notif-bell-icon {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.notif-badge {
  position: absolute;
  top: -3px;
  right: -4px;
  min-width: 1.05rem;
  height: 1.05rem;
  padding: 0 0.28rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: linear-gradient(to bottom, var(--color-gold-bright), var(--color-gold));
  color: var(--color-gold-ink);
  border: 1px solid var(--color-gold-deep);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.62rem;
  font-weight: 600;
  line-height: 1;
  box-shadow: 0 1px 2px oklch(20% 0.04 90 / 0.4);
}

.notif-panel {
  position: absolute;
  top: calc(100% + 6px);
  right: var(--space-md);
  z-index: var(--z-overlay);
  width: min(21rem, calc(100vw - 2 * var(--space-md)));
  max-height: 22rem;
  overflow-y: auto;
  background: var(--color-surface);
  border: var(--rule-hairline);
  border-radius: var(--radius-card);
  box-shadow: 0 14px 34px oklch(12% 0.03 165 / 0.45);
}

.notif-panel-head {
  position: sticky;
  top: 0;
  background: var(--color-surface);
  padding: var(--space-2xs) var(--space-sm);
  border-bottom: var(--rule-hairline);
  font-family: var(--font-display);
  font-weight: 560;
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-ink);
}

.notif-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.notif-item {
  padding: var(--space-2xs) var(--space-sm);
  border-bottom: var(--rule-hairline);
}

.notif-item:last-child {
  border-bottom: none;
}

.notif-item--unseen {
  background: oklch(78% 0.115 85 / 0.09);
  border-left: 2px solid var(--color-gold);
}

.notif-text {
  margin: 0 0 var(--space-3xs);
  font-size: var(--text-sm);
  line-height: 1.4;
  color: var(--color-ink);
}

.notif-time {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-2);
}

.notif-empty {
  padding: var(--space-md) var(--space-sm);
  text-align: center;
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

/* Your shelf: currently reading and finished, on the library page */
.shelf { margin: 0 0 var(--space-6, 2rem); }
.shelf-heading { font-family: var(--font-display, serif); margin: 0 0 var(--space-2, 0.5rem); }
.shelf-subhead { font-size: 0.95rem; letter-spacing: 0.02em; text-transform: uppercase; opacity: 0.7; margin: var(--space-3, 1rem) 0 var(--space-2, 0.5rem); }
.shelf-row { margin-bottom: var(--space-3, 1rem); }

/* ─── The BookHub cats ───────────────────────────────────────────────────────
   A little family of animated cats that share the sign-in cat's palette.
   All idle loops sit still under prefers-reduced-motion (global guard above). */

/* A sleeping cat loaf that breathes, twitches an ear, and dreams z's. */
.cat-loaf {
  display: inline-block;
  line-height: 0;
  filter: drop-shadow(0 3px 4px oklch(24% 0.02 60 / 0.18));
}
.cat-loaf-body {
  transform-box: fill-box;
  transform-origin: 50% 100%;
  animation: cat-loaf-breathe 3.8s var(--ease-in-out) infinite;
}
@keyframes cat-loaf-breathe {
  0%, 100% { transform: scaleY(1); }
  50% { transform: scaleY(1.035) translateY(-0.5px); }
}
.cat-loaf-ear-r {
  transform-box: fill-box;
  transform-origin: 90% 100%;
  animation: cat-ear-twitch 5.5s var(--ease-in-out) infinite;
}
@keyframes cat-ear-twitch {
  0%, 82%, 100% { transform: rotate(0deg); }
  86% { transform: rotate(-9deg); }
  90% { transform: rotate(3deg); }
  94% { transform: rotate(0deg); }
}
.cat-loaf-z {
  font-family: var(--font-display, serif);
  font-weight: 600;
  fill: var(--color-ink-2);
  opacity: 0;
  transform-box: fill-box;
  transform-origin: 50% 100%;
}
.cat-loaf-z1 { font-size: 12px; animation: cat-z 3.6s ease-in-out infinite; }
.cat-loaf-z2 { font-size: 15px; animation: cat-z 3.6s ease-in-out infinite 0.5s; }
.cat-loaf-z3 { font-size: 19px; animation: cat-z 3.6s ease-in-out infinite 1s; }
@keyframes cat-z {
  0% { opacity: 0; transform: translateY(6px) scale(0.8); }
  30% { opacity: 0.85; }
  70% { opacity: 0.55; }
  100% { opacity: 0; transform: translateY(-8px) scale(1.1); }
}

/* A curious cat peeking over an edge: pops up, blinks, twitches. */
.cat-peek {
  display: inline-block;
  line-height: 0;
  overflow: hidden;
}
.cat-peek-rise {
  transform-box: fill-box;
  transform-origin: 50% 100%;
  animation: cat-peek-rise 6s var(--ease-in-out) infinite;
}
@keyframes cat-peek-rise {
  0%, 100% { transform: translateY(10%); }
  12%, 78% { transform: translateY(0); }
  40% { transform: translateY(-6%); }
}
.cat-peek-blink {
  opacity: 0;
  animation: cat-peek-lids 6s step-end infinite;
}
.cat-peek-eyes {
  animation: cat-peek-eyes 6s step-end infinite;
}
@keyframes cat-peek-lids {
  0%, 45%, 49%, 100% { opacity: 0; }
  46%, 48% { opacity: 1; }
}
@keyframes cat-peek-eyes {
  0%, 45%, 49%, 100% { opacity: 1; }
  46%, 48% { opacity: 0; }
}
.cat-peek-ear {
  transform-box: fill-box;
  transform-origin: 50% 100%;
  animation: cat-ear-twitch 4.5s var(--ease-in-out) infinite 1.5s;
}

/* A playful kitten that wiggles, then pounces at a ball of yarn. */
.cat-pounce {
  display: inline-block;
  line-height: 0;
}
.cat-pounce-body {
  transform-box: fill-box;
  transform-origin: 60% 100%;
  animation: cat-pounce 4.2s var(--ease-in-out) infinite;
}
@keyframes cat-pounce {
  0%, 40% { transform: translateX(0) rotate(0deg); }
  20% { transform: translateX(0) rotate(0deg) scaleY(0.96); }
  10%, 30% { transform: translateX(1px) rotate(-1.5deg); }
  15%, 25% { transform: translateX(-1px) rotate(1.5deg); }
  55% { transform: translateX(-34px) rotate(-3deg); }
  70% { transform: translateX(-34px) rotate(-3deg); }
  85%, 100% { transform: translateX(0) rotate(0deg); }
}
.cat-pounce-tail {
  transform-box: fill-box;
  transform-origin: 0% 100%;
  animation: cat-tail-flick 2.1s var(--ease-in-out) infinite;
}
@keyframes cat-tail-flick {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(-12deg); }
}
.cat-pounce-yarn {
  transform-box: view-box;
  transform-origin: 26px 80px;
  animation: cat-yarn-nudge 4.2s var(--ease-in-out) infinite;
}
@keyframes cat-yarn-nudge {
  0%, 52%, 100% { transform: translateX(0) rotate(0deg); }
  62% { transform: translateX(-7px) rotate(-40deg); }
  80% { transform: translateX(-4px) rotate(-24deg); }
}

/* Placement of the cats in their homes */
.ledger-cat {
  margin-left: auto;
  align-self: flex-end;
}
.catalog-cat {
  display: block;
  margin: 0 auto var(--space-2xs);
}
.conversation-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2xs);
  padding: var(--space-lg) 0;
  text-align: center;
}
.letters-cat {
  opacity: 0.95;
}
@media (max-width: 720px) {
  .ledger-cat { display: none; }
}

/* ─── Reading journey trendline ─────────────────────────────────────────── */
.journey-figure { margin: 0 0 var(--space-md); max-width: 42rem; }
.journey-chart { width: 100%; }
.journey-svg { width: 100%; height: auto; display: block; }
.journey-grid { stroke: var(--color-rule); stroke-width: 1; }
.journey-axis {
  fill: var(--color-ink-2);
  font-family: var(--font-mono);
  font-size: 11px;
}
.journey-area { fill: var(--color-gold); opacity: 0.16; }
.journey-line {
  fill: none;
  stroke: var(--color-gold-deep);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.journey-dot {
  stroke: var(--color-surface);
  stroke-width: 2;
  transition: r 140ms var(--ease-out);
  cursor: pointer;
}
.journey-dot:hover, .journey-dot:focus-visible { r: 7; outline: none; }
.journey-legend {
  list-style: none;
  margin: var(--space-2xs) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs) var(--space-sm);
}
.journey-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: var(--text-xs);
  color: var(--color-ink-2);
}
.journey-swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  display: inline-block;
}
.journey-cap { font-size: var(--text-xs); margin-top: var(--space-2xs); }
.journey-details { margin-top: var(--space-2xs); }
.journey-details summary {
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--color-accent);
}

/* ─── Forum personal area ("Your desk") ─────────────────────────────────── */
.mine-panel { margin-bottom: var(--space-md); }
.mine-toggle {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
  width: 100%;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  text-align: left;
}
.mine-heading {
  font-family: var(--font-display);
  font-weight: 620;
  font-size: var(--text-md);
  color: var(--color-ink);
}
.mine-tally { color: var(--color-accent-deep); font-size: var(--text-sm); }
.mine-list {
  list-style: none;
  margin: var(--space-2xs) 0 0;
  padding: 0;
}
.mine-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: 0.35rem 0;
  border-bottom: var(--rule-hairline);
}
.mine-item-title { color: var(--color-ink); }
.mine-item-score { color: var(--color-ink-2); font-size: var(--text-sm); white-space: nowrap; }

/* ─── ISBN on the book detail ───────────────────────────────────────────── */
.book-isbn {
  color: var(--color-ink-2);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
}

/* ─── Google sign-in ────────────────────────────────────────────────────── */
.auth-alt { margin-top: var(--space-sm); }
.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  color: var(--color-ink-2);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: var(--space-2xs);
}
.auth-divider::before, .auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-rule);
}
.btn-google {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  background: var(--color-surface);
  color: var(--color-ink);
  border: 1px solid var(--color-border-input);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  font-family: var(--font-body);
  font-size: var(--text-md);
  cursor: pointer;
  transition: background 160ms var(--ease-out), border-color 160ms var(--ease-out);
}
.btn-google:hover { background: var(--color-paper-2); border-color: var(--color-rule-strong); }
.btn-google:disabled { opacity: 0.6; cursor: default; }
.google-g { flex: none; }

/* ─── Image attachments (posts, comments, DMs) ──────────────────────────── */
.attachment-image {
  display: block;
  max-width: 100%;
  /* Cap the rendered box so an over-large image can never blow up the layout,
     even in the brief window before the worker re-encodes it to <=1280px. */
  max-height: 360px;
  object-fit: contain;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-sm);
  margin: var(--space-2xs) 0;
  background: var(--color-paper-2);
}
.comment-image { max-width: 14rem; }
.compose-image input[type="file"],
.send-image input[type="file"] {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}