:root {
  color-scheme: light;
  --ink: #1f292f;
  --muted: #657077;
  --paper: #f2eee4;
  --paper-deep: #dfd6c5;
  --card: #fffdf7;
  --blue: #24394a;
  --blue-mid: #405d70;
  --blue-pale: #dfe7eb;
  --red: #a3483f;
  --red-dark: #79322d;
  --oak: #8a6847;
  --oak-dark: #5d432e;
  --brass: #b89552;
  --line: #c8bca7;
  --shadow: 0 18px 44px rgb(33 39 42 / 13%);
  color: var(--ink);
  background: #dfdbd1;
  font-family: "Yu Gothic UI", "Hiragino Kaku Gothic ProN", "BIZ UDPGothic", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background-color: var(--paper);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18'%3E%3Ccircle cx='2' cy='2' r='.7' fill='%2324394a' fill-opacity='.05'/%3E%3C/svg%3E");
}
a {
  color: inherit;
}
button,
input {
  font: inherit;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 3px solid #d6a735;
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 30;
  top: 0.6rem;
  left: 0.6rem;
  padding: 0.7rem 1rem;
  color: white;
  background: var(--blue);
  transform: translateY(-150%);
}
.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1rem 0;
}
.wordmark {
  display: inline-flex;
  gap: 0.7rem;
  align-items: center;
  color: var(--blue);
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
}
.mini-catalogue {
  display: grid;
  grid-template-columns: repeat(3, 0.52rem);
  gap: 0.12rem;
}
.mini-catalogue i {
  display: block;
  height: 1.35rem;
  border: 1px solid var(--blue);
  background: #f9f4e7;
  box-shadow: inset 0 -0.25rem var(--red);
}
.site-header nav {
  display: flex;
  gap: 0.2rem;
}
.site-header nav a {
  padding: 0.55rem 0.65rem;
  color: #53616a;
  font-size: 0.76rem;
  font-weight: 700;
  text-decoration: none;
}
.site-header nav a:hover {
  color: var(--red);
  text-decoration: underline;
}

.home {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto 4rem;
}
.search-library {
  position: relative;
  display: grid;
  grid-template-columns: minmax(15rem, 0.85fr) minmax(24rem, 1.15fr);
  gap: 1rem 3rem;
  min-height: 32rem;
  padding: clamp(1.5rem, 4vw, 3.2rem);
  overflow: hidden;
  border: 1px solid #1b2e3c;
  border-radius: 0.3rem 0.3rem 1.3rem 0.3rem;
  color: #faf6eb;
  background-color: var(--blue);
  box-shadow: var(--shadow);
}
.search-library::before {
  position: absolute;
  inset: 1rem;
  border: 1px solid rgb(255 255 255 / 10%);
  border-radius: 0.2rem 0.2rem 1rem 0.2rem;
  content: "";
  pointer-events: none;
}
.search-library::after {
  position: absolute;
  right: -4rem;
  bottom: -4rem;
  width: 14rem;
  height: 14rem;
  border: 1.5rem solid rgb(184 149 82 / 11%);
  border-radius: 50%;
  content: "";
}
.product-heading {
  position: relative;
  z-index: 2;
  align-self: center;
  padding-bottom: 11.5rem;
}
.eyebrow,
.section-heading p,
.content-heading p,
.saved-drawer header p {
  margin: 0 0 0.45rem;
  color: #bcae91;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}
.product-heading h1 {
  max-width: 13ch;
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(1.95rem, 4vw, 2.35rem);
  line-height: 1.4;
  letter-spacing: 0.04em;
}
.product-heading > p:last-child {
  max-width: 27rem;
  margin: 1rem 0 0;
  color: #d9dfe2;
  font-size: 0.92rem;
  line-height: 1.9;
}

.catalogue-scene {
  position: absolute;
  z-index: 1;
  bottom: 2.1rem;
  left: clamp(1.4rem, 4vw, 3.2rem);
  width: min(40%, 24rem);
  height: 14rem;
}
.card-cabinet {
  position: absolute;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: repeat(2, 5.1rem);
  gap: 0.42rem;
  padding: 0.65rem;
  border: 0.35rem solid var(--oak-dark);
  border-radius: 0.15rem;
  background: var(--oak);
  box-shadow: 0.65rem 0.75rem 0 rgb(10 19 25 / 25%);
}
.drawer {
  position: relative;
  display: block;
  height: 3.25rem;
  border: 2px solid #66472d;
  background: #a77d51;
  box-shadow: inset 0 0.22rem rgb(255 255 255 / 10%);
}
.drawer::before {
  position: absolute;
  top: 0.55rem;
  left: 50%;
  width: 2.6rem;
  height: 0.85rem;
  border: 2px solid #765c34;
  background: var(--brass);
  content: "";
  transform: translateX(-50%);
}
.drawer i {
  position: absolute;
  bottom: 0.42rem;
  left: 50%;
  width: 1.3rem;
  height: 0.25rem;
  border-radius: 1rem;
  background: #483221;
  transform: translateX(-50%);
}
.book-stack {
  position: absolute;
  bottom: 0.2rem;
  left: 0;
  display: flex;
  gap: 0.24rem;
  align-items: end;
}
.spine {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 9.2rem;
  border: 1px solid #142630;
  color: #f3e8cf;
  background: #99493f;
  box-shadow: inset 0.28rem 0 rgb(255 255 255 / 8%);
  font-size: 0.6rem;
  font-style: normal;
  writing-mode: vertical-rl;
}
.spine-b {
  height: 10.6rem;
  background: #577183;
}
.spine-c {
  height: 8rem;
  background: #967439;
}
.catalogue-card {
  position: absolute;
  z-index: 3;
  top: 0.4rem;
  right: 2rem;
  width: 10rem;
  height: 6.2rem;
  border: 1px solid #b9aa8d;
  border-radius: 0.12rem;
  background: #fff9e9;
  box-shadow: 0.4rem 0.5rem 0 rgb(15 27 35 / 20%);
  transform: rotate(-5deg);
}
.card-rule {
  position: absolute;
  top: 1.35rem;
  right: 0;
  left: 0;
  height: 1px;
  background: #bd685d;
}
.card-title {
  position: absolute;
  top: 0.62rem;
  left: 0.65rem;
  width: 4.9rem;
  height: 0.18rem;
  background: #4f6571;
}
.card-line {
  position: absolute;
  left: 0.65rem;
  width: 7rem;
  height: 0.12rem;
  background: #aaa08f;
}
.card-line.line-a {
  top: 2.05rem;
}
.card-line.line-b {
  top: 2.75rem;
  width: 6.2rem;
}
.card-line.line-c {
  top: 3.45rem;
  width: 7.8rem;
}
.barcode {
  position: absolute;
  right: 0.7rem;
  bottom: 0.55rem;
  display: flex;
  gap: 0.14rem;
  height: 1.15rem;
}
.barcode i {
  display: block;
  width: 0.12rem;
  background: #2c3539;
}
.barcode i:nth-child(2n) {
  width: 0.22rem;
}
.barcode i:nth-child(3n) {
  height: 0.8rem;
}

.search-form {
  position: relative;
  z-index: 3;
  align-self: center;
  padding: clamp(1.1rem, 3vw, 2rem);
  border: 1px solid #d4c7ae;
  border-radius: 0.25rem 0.25rem 0.9rem 0.25rem;
  color: var(--ink);
  background: #faf5e9;
  box-shadow: 0.65rem 0.7rem 0 #182b38;
}
.mode-tabs {
  display: flex;
  gap: 0.4rem;
  margin: 0 0 1.2rem;
  padding: 0;
  border: 0;
}
.mode-tabs legend {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}
.mode-tabs label {
  flex: 1;
  cursor: pointer;
}
.mode-tabs input {
  position: absolute;
  opacity: 0;
}
.mode-tabs span {
  display: block;
  padding: 0.68rem 0.45rem;
  border: 1px solid #bcb19f;
  border-radius: 0.25rem;
  color: #5e676c;
  background: #ece5d7;
  font-size: 0.78rem;
  font-weight: 800;
  text-align: center;
}
.mode-tabs input:checked + span {
  border-color: var(--blue);
  color: white;
  background: var(--blue);
}
.mode-tabs input:focus-visible + span {
  outline: 3px solid #d6a735;
  outline-offset: 3px;
}
.query-line > label {
  display: block;
  margin-bottom: 0.45rem;
  color: #566269;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}
.query-slot {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: stretch;
  overflow: hidden;
  border: 2px solid var(--blue);
  border-radius: 0.25rem;
  background: white;
}
.search-mark {
  display: grid;
  place-items: center;
  width: 3rem;
  margin: 0.34rem;
  border: 1px solid var(--red);
  color: var(--red);
  background: #fff9ed;
  font-family: "Yu Mincho", serif;
  font-weight: 800;
}
.query-slot input {
  min-width: 0;
  padding: 1rem 0.55rem;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font-size: 1rem;
}
.query-slot button {
  min-width: 7.3rem;
  border: 0;
  color: white;
  background: var(--red);
  font-weight: 800;
  cursor: pointer;
}
.query-slot button:hover {
  background: var(--red-dark);
}
.query-slot button:disabled {
  cursor: wait;
  opacity: 0.65;
}
.refine-line {
  display: grid;
  grid-template-columns: 7.2rem minmax(0, 1fr);
  gap: 0.7rem;
  align-items: center;
  margin-top: 0.85rem;
}
.refine-line[hidden] {
  display: none;
}
.refine-line label {
  color: #566269;
  font-size: 0.72rem;
  font-weight: 800;
}
.refine-line label span {
  margin-left: 0.25rem;
  color: #88867f;
  font-size: 0.62rem;
  font-weight: 600;
}
.refine-line input {
  min-width: 0;
  padding: 0.62rem 0.7rem;
  border: 1px solid #bcb19f;
  border-radius: 0.22rem;
  color: var(--ink);
  background: white;
  font-size: 0.82rem;
}
.examples {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 1rem;
}
.examples > span {
  color: #7a7f7e;
  font-size: 0.7rem;
  font-weight: 800;
}
.examples button {
  padding: 0.48rem 0.62rem;
  border: 1px solid #c4b8a3;
  border-radius: 2rem;
  color: #566269;
  background: transparent;
  font-size: 0.7rem;
  cursor: pointer;
}
.examples button:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: var(--blue-pale);
}
.search-status {
  min-height: 1.35rem;
  margin: 0.9rem 0 0;
  color: #6b7478;
  font-size: 0.76rem;
}
.search-form.is-loading .search-mark {
  animation: card-pull 0.8s ease-in-out infinite alternate;
}
@keyframes card-pull {
  from {
    transform: translateY(-2px);
  }
  to {
    transform: translateY(2px);
  }
}

.source-ribbon {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin: 1rem 0 2rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.28rem;
  background: rgb(255 253 247 / 72%);
}
.source-ribbon span {
  padding: 0.28rem 0.6rem;
  border-left: 3px solid var(--blue-mid);
  color: #566269;
  font-size: 0.7rem;
  font-weight: 800;
}
.source-ribbon a {
  margin-left: auto;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 800;
}

.work-area {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 19rem;
  gap: 1.5rem;
  align-items: start;
}
.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 0.8rem;
  padding: 0 0.35rem;
}
.section-heading p,
.saved-drawer header p,
.content-heading p {
  color: var(--red);
}
.section-heading h2,
.saved-drawer h2 {
  margin: 0;
  font-family: "Yu Mincho", serif;
  font-size: 1.2rem;
}
.section-heading > span {
  color: var(--muted);
  font-size: 0.76rem;
}
.result-list {
  display: grid;
  gap: 0.85rem;
}
.empty-result,
.no-result {
  display: flex;
  gap: 1rem;
  align-items: center;
  min-height: 9rem;
  padding: 1.5rem;
  border: 1px dashed #aa9d86;
  border-radius: 0.25rem 0.25rem 0.85rem 0.25rem;
  color: #606a6f;
  background: rgb(255 253 247 / 58%);
}
.empty-seal,
.no-result > span {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 3.2rem;
  height: 3.2rem;
  border: 2px solid var(--red);
  border-radius: 50%;
  color: var(--red);
  font-family: "Yu Mincho", serif;
  font-weight: 800;
}
.empty-result h3,
.no-result h3 {
  margin: 0 0 0.35rem;
  color: var(--ink);
  font-family: "Yu Mincho", serif;
  font-size: 1rem;
}
.empty-result p,
.no-result p {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.75;
}

.book-card {
  position: relative;
  padding: 1.25rem 1.25rem 1.15rem 4.3rem;
  overflow: hidden;
  border: 1px solid #bdb19d;
  border-radius: 0.22rem 0.22rem 0.85rem 0.22rem;
  background-color: var(--card);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10'%3E%3Cpath d='M0 9.5H10' stroke='%23a3483f' stroke-opacity='.045'/%3E%3C/svg%3E");
  box-shadow: 0 0.45rem 1.2rem rgb(45 51 54 / 8%);
}
.book-card::after {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 1.1rem;
  height: 1.1rem;
  border-top: 1px solid #d3c7b4;
  border-left: 1px solid #d3c7b4;
  background: var(--paper);
  content: "";
}
.book-index {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  display: grid;
  place-items: center;
  width: 3.1rem;
  padding: 0.4rem;
  color: white;
  background: var(--blue);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  writing-mode: vertical-rl;
}
.book-index::after {
  position: absolute;
  top: 1rem;
  right: -0.5rem;
  width: 0.5rem;
  height: 2rem;
  background: var(--red);
  content: "";
}
.book-head {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  color: var(--muted);
  font-size: 0.68rem;
}
.book-barcode {
  display: flex;
  gap: 2px;
  align-items: end;
  height: 1rem;
  padding: 0.1rem 0.3rem;
  background: #f4f0e7;
}
.book-barcode i {
  display: block;
  width: var(--bar);
  height: 0.8rem;
  background: #374146;
}
.book-barcode i:nth-child(3n) {
  height: 0.6rem;
}
.book-card h3 {
  margin: 0;
  font-family: "Yu Mincho", serif;
  font-size: clamp(1.05rem, 2.2vw, 1.34rem);
  line-height: 1.55;
}
.book-reading {
  margin: 0.3rem 0 0;
  color: #7c8180;
  font-size: 0.68rem;
  line-height: 1.6;
}
.book-creators {
  margin: 0.65rem 0;
  color: #3f4d54;
  font-size: 0.83rem;
  font-weight: 700;
  line-height: 1.7;
}
.book-meta {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: 0.34rem 0.7rem;
  margin: 0;
  padding: 0.75rem 0.85rem;
  border-top: 1px solid #ddd3c1;
  border-bottom: 1px solid #ddd3c1;
  background: rgb(241 235 222 / 55%);
  font-size: 0.72rem;
}
.book-meta dt {
  color: #7a7e7d;
}
.book-meta dd {
  margin: 0;
  color: #3e494f;
  overflow-wrap: anywhere;
}
.book-actions {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
  margin-top: 0.9rem;
}
.book-actions a,
.book-actions button {
  padding: 0.58rem 0.75rem;
  border: 1px solid #9d9587;
  border-radius: 0.22rem;
  color: #39474e;
  background: transparent;
  font-size: 0.72rem;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}
.book-actions a {
  border-color: var(--blue);
  color: white;
  background: var(--blue);
}
.book-actions button:hover,
.book-actions button.is-saved {
  border-color: var(--red);
  color: var(--red);
  background: #f6e6e1;
}
.book-actions button.is-done {
  border-color: var(--blue-mid);
  color: var(--blue-mid);
  background: var(--blue-pale);
}

.saved-drawer {
  position: sticky;
  top: 1rem;
  padding: 1.1rem;
  border: 0.35rem solid var(--oak-dark);
  border-radius: 0.18rem 0.18rem 0.7rem 0.18rem;
  background: #a77d51;
  box-shadow:
    inset 0 0 0 0.25rem #bd9365,
    0 0.6rem 1.3rem rgb(45 51 54 / 12%);
}
.drawer-handle {
  position: relative;
  width: 4.6rem;
  height: 1rem;
  margin: 0 auto 0.85rem;
  border: 2px solid #775b33;
  background: var(--brass);
}
.drawer-handle i {
  position: absolute;
  right: 0.8rem;
  bottom: -0.45rem;
  left: 0.8rem;
  height: 0.35rem;
  border-radius: 0 0 1rem 1rem;
  background: #5b412a;
}
.saved-drawer header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.25rem 0.75rem;
  border-bottom: 1px solid #7a5c3f;
}
.saved-drawer header p {
  color: #f0dfbd;
}
.saved-drawer h2 {
  color: #fff8ea;
}
.saved-drawer header strong {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  border: 2px solid #f2d68f;
  border-radius: 50%;
  color: #fff3d2;
  font-family: "Yu Mincho", serif;
}
.saved-stack {
  display: grid;
  gap: 0.55rem;
  max-height: 35rem;
  margin-top: 0.8rem;
  overflow: auto;
}
.empty-saved {
  margin: 0;
  padding: 1.2rem 0.55rem;
  color: #f6ead5;
  font-size: 0.74rem;
  line-height: 1.7;
}
.saved-slip {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.25rem 0.55rem;
  align-items: start;
  padding: 0.72rem;
  border: 1px solid #c7baa4;
  border-radius: 0.16rem;
  background: #fffaf0;
  box-shadow: 0.2rem 0.25rem 0 rgb(75 50 29 / 20%);
}
.saved-slip > span {
  grid-row: 1 / span 2;
  max-width: 1.6rem;
  padding: 0.2rem 0.25rem;
  overflow: hidden;
  color: white;
  background: var(--blue-mid);
  font-size: 0.56rem;
  text-overflow: ellipsis;
  writing-mode: vertical-rl;
}
.saved-slip a {
  overflow: hidden;
  font-family: "Yu Mincho", serif;
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.5;
}
.saved-slip small {
  grid-column: 2;
  overflow: hidden;
  color: #74716b;
  font-size: 0.62rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.remove-saved {
  grid-column: 3;
  grid-row: 1 / span 2;
  padding: 0.25rem;
  border: 0;
  color: #80504a;
  background: transparent;
  font-size: 0.64rem;
  cursor: pointer;
}
.clear-button {
  width: 100%;
  margin-top: 0.75rem;
  padding: 0.55rem;
  border: 1px solid #e1c89b;
  color: #fff2d8;
  background: #75543a;
  font-size: 0.68rem;
  cursor: pointer;
}

.content-page,
.not-found {
  width: min(980px, calc(100% - 2rem));
  min-height: 67vh;
  margin: 1rem auto 4rem;
}
.content-heading {
  display: flex;
  gap: 1.2rem;
  align-items: center;
  padding: 1.5rem;
  border: 1px solid #1b2e3c;
  border-radius: 0.25rem 0.25rem 0.9rem 0.25rem;
  color: white;
  background: var(--blue);
}
.page-index {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 3.5rem;
  height: 3.5rem;
  border: 2px solid #d8bd7a;
  color: #f3dda6;
  font-family: "Yu Mincho", serif;
  font-size: 1.2rem;
}
.content-heading h1 {
  margin: 0;
  font-family: "Yu Mincho", serif;
  font-size: clamp(1.35rem, 4vw, 1.95rem);
}
.instruction-grid,
.source-grid,
.privacy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}
.instruction-grid section,
.source-ledger,
.privacy-grid section {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 0.25rem 0.25rem 0.7rem 0.25rem;
  background: var(--card);
}
.instruction-grid b {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border: 1px solid var(--red);
  border-radius: 50%;
  color: var(--red);
  font-family: "Yu Mincho", serif;
}
.instruction-grid h2,
.source-ledger h2,
.privacy-grid h2 {
  margin: 0.8rem 0 0.5rem;
  font-family: "Yu Mincho", serif;
  font-size: 1rem;
}
.instruction-grid p,
.source-ledger p,
.privacy-grid p {
  margin: 0.55rem 0 0;
  color: #5e686d;
  font-size: 0.79rem;
  line-height: 1.85;
}
.source-ledger a {
  color: var(--blue-mid);
  font-weight: 800;
}
.page-cta,
.not-found a {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.7rem 1rem;
  border-radius: 0.23rem;
  color: white;
  background: var(--red);
  font-size: 0.8rem;
  font-weight: 800;
  text-decoration: none;
}
.not-found {
  display: grid;
  place-content: center;
  text-align: center;
}
.not-found > span {
  color: #a99d88;
  font-family: "Yu Mincho", serif;
  font-size: 2rem;
}
.not-found h1 {
  margin: 0.45rem 0;
  font-family: "Yu Mincho", serif;
  font-size: 1.5rem;
}
.not-found p {
  color: var(--muted);
  font-size: 0.8rem;
}
.not-found a {
  justify-self: center;
}
.site-footer {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem max(1rem, calc((100% - 1180px) / 2));
  color: #d5dde1;
  background: #1c2e3b;
  font-size: 0.68rem;
}
.site-footer > span:last-child {
  display: flex;
  gap: 1rem;
}
.site-footer a {
  color: #f0dcaa;
}

@media (max-width: 840px) {
  .search-library {
    grid-template-columns: 1fr;
    padding-bottom: 2rem;
  }
  .product-heading {
    padding: 0;
  }
  .catalogue-scene {
    position: relative;
    bottom: auto;
    left: auto;
    width: min(100%, 29rem);
    height: 11.5rem;
  }
  .book-stack {
    transform: scale(0.85);
    transform-origin: left bottom;
  }
  .card-cabinet {
    transform: scale(0.9);
    transform-origin: right bottom;
  }
  .work-area {
    grid-template-columns: 1fr;
  }
  .saved-drawer {
    position: static;
  }
  .instruction-grid,
  .source-grid,
  .privacy-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 580px) {
  .site-header,
  .home,
  .content-page,
  .not-found {
    width: min(100% - 1rem, 1180px);
  }
  .site-header {
    align-items: flex-start;
  }
  .site-header nav {
    gap: 0;
  }
  .site-header nav a {
    padding: 0.5rem 0.38rem;
    font-size: 0.68rem;
  }
  .search-library {
    gap: 1rem;
    padding: 1rem;
  }
  .product-heading h1 {
    font-size: 1.78rem;
  }
  .catalogue-scene {
    height: 9.5rem;
    transform: scale(0.82);
    transform-origin: left bottom;
  }
  .search-form {
    padding: 0.85rem;
    box-shadow: 0.35rem 0.4rem 0 #182b38;
  }
  .mode-tabs span {
    padding: 0.58rem 0.25rem;
    font-size: 0.68rem;
  }
  .query-slot {
    grid-template-columns: auto minmax(0, 1fr);
  }
  .search-mark {
    width: 2.35rem;
  }
  .query-slot button {
    grid-column: 1 / -1;
    min-height: 2.8rem;
  }
  .refine-line {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
  .source-ribbon {
    gap: 0.35rem;
    flex-wrap: wrap;
  }
  .source-ribbon a {
    width: 100%;
    margin: 0.35rem 0 0;
  }
  .book-card {
    padding: 1rem 0.82rem 1rem 3.4rem;
  }
  .book-index {
    width: 2.5rem;
  }
  .book-head {
    align-items: flex-start;
    flex-direction: column;
  }
  .book-actions {
    display: grid;
  }
  .book-actions a,
  .book-actions button {
    text-align: center;
  }
  .book-meta {
    grid-template-columns: 4.3rem minmax(0, 1fr);
  }
  .content-heading {
    padding: 1rem;
  }
  .page-index {
    width: 2.8rem;
    height: 2.8rem;
  }
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

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