:root {
  color-scheme: dark;
  --bg: #11120f;
  --bg-raised: #171815;
  --panel: #1c1d19;
  --panel-hover: #22231e;
  --line: #32332d;
  --line-soft: #272822;
  --text: #edeee7;
  --text-soft: #b2b4aa;
  --text-faint: #7f8178;
  --accent: #c7ad73;
  --accent-bright: #e0c98f;
  --accent-dark: #76643f;
  --danger: #d09a8c;
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --radius: 4px;
  --shadow: 0 20px 60px rgb(0 0 0 / 24%);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 12% 0%, rgb(199 173 115 / 5%), transparent 29rem),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
}

button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 2px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  padding: 8px 12px;
  transform: translateY(-150%);
  background: var(--text);
  color: var(--bg);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  padding: 0 clamp(20px, 4vw, 64px);
  border-bottom: 1px solid var(--line-soft);
  background: rgb(17 18 15 / 88%);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}
.brand strong {
  display: block;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: .01em;
}
.brand small {
  display: block;
  margin-top: 1px;
  color: var(--text-faint);
  font-size: 11px;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.brand-mark {
  display: flex;
  align-items: flex-start;
  height: 32px;
  border: 1px solid var(--line);
  border-bottom-color: var(--accent-dark);
}
.brand-mark i {
  display: block;
  width: 7px;
  height: 30px;
  border-right: 1px solid var(--line);
  background: #dad9cf;
}
.brand-mark i:last-child { border: 0; }
.brand-mark i:nth-child(2), .brand-mark i:nth-child(4) {
  position: relative;
}
.brand-mark i:nth-child(2)::before, .brand-mark i:nth-child(4)::before {
  position: absolute;
  z-index: 1;
  top: -1px;
  left: -3px;
  width: 5px;
  height: 18px;
  background: #282923;
  content: "";
}

.primary-nav { display: flex; align-self: stretch; gap: 26px; }
.primary-nav a {
  position: relative;
  display: flex;
  align-items: center;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .05em;
  text-decoration: none;
  text-transform: uppercase;
}
.primary-nav a:hover, .primary-nav a[aria-current="page"] { color: var(--text); }
.primary-nav a[aria-current="page"]::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--accent);
  content: "";
}

main { min-height: calc(100vh - 134px); }
.page { width: min(1480px, 100%); margin: 0 auto; padding: clamp(36px, 6vw, 76px) clamp(20px, 4vw, 64px) 80px; }
.page.narrow { width: min(1050px, 100%); }

.page-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 36px;
}
.page-heading h1, .detail-title {
  max-width: 850px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(38px, 5.5vw, 72px);
  font-weight: 400;
  line-height: .98;
  letter-spacing: -.035em;
}
.page-heading .intro {
  max-width: 550px;
  margin: 14px 0 0;
  color: var(--text-soft);
  font-family: var(--serif);
  font-size: 17px;
}
.page-count { flex: none; color: var(--text-faint); font-variant-numeric: tabular-nums; }
.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .15em;
  text-transform: uppercase;
}

.loading-state {
  display: grid;
  min-height: 60vh;
  place-content: center;
  color: var(--text-faint);
  text-align: center;
}
.loading-rule {
  display: block;
  width: 80px;
  height: 1px;
  margin: 0 auto 20px;
  overflow: hidden;
  background: var(--line);
}
.loading-rule::after {
  display: block;
  width: 40%;
  height: 100%;
  animation: loading 1.2s infinite ease-in-out;
  background: var(--accent);
  content: "";
}
@keyframes loading { from { transform: translateX(-100%); } to { transform: translateX(250%); } }

.archive-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0 0 20px;
  border: 1px solid var(--line-soft);
  background: var(--bg-raised);
}
.archive-summary div { padding: 18px 22px; border-right: 1px solid var(--line-soft); }
.archive-summary div:last-child { border: 0; }
.archive-summary dt { color: var(--text-faint); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.archive-summary dd { margin: 4px 0 0; font-family: var(--serif); font-size: 25px; }

.book-filter-bar {
  position: sticky;
  z-index: 10;
  top: 78px;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(220px, 1fr) auto;
  gap: 12px;
  align-items: end;
  margin: 0 calc(clamp(20px, 4vw, 64px) * -1) 32px;
  padding: 14px clamp(20px, 4vw, 64px);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line);
  background: rgb(23 24 21 / 96%);
  box-shadow: 0 10px 30px rgb(0 0 0 / 16%);
}
.book-filter-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  min-height: 52px;
  color: var(--text-faint);
  font-size: 12px;
  white-space: nowrap;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: clamp(16px, 2vw, 28px);
}
.book-card {
  position: relative;
  min-height: 330px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 8px 30px rgb(0 0 0 / 12%);
  transition: border-color .2s, transform .2s, background .2s;
}
.book-card:hover { transform: translateY(-3px); border-color: var(--accent-dark); background: var(--panel-hover); }
.book-card a { display: flex; flex-direction: column; height: 100%; padding: 25px 24px 20px 29px; text-decoration: none; }
.book-card a::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 5px;
  background: var(--book-accent, var(--accent-dark));
  content: "";
}
.book-card.has-cover { min-height: 470px; }
.book-card.has-cover a { padding: 0; }
.book-card.has-cover a::before { display: none; }
.book-cover-frame {
  display: grid;
  aspect-ratio: 3 / 4;
  padding: 14px;
  border-bottom: 1px solid var(--line);
  background: #0d0e0c;
  place-items: center;
}
.book-cover-frame img { width: 100%; height: 100%; object-fit: contain; }
.book-card-copy { display: flex; flex: 1; flex-direction: column; padding: 16px 18px 18px; }
.book-card.has-cover h2 { margin: 9px 0 7px; font-size: 19px; }
.book-card.has-cover .book-card-meta { padding-top: 18px; }
.book-card.compact { min-height: 240px; max-width: 390px; }
.book-card.compact.has-cover { min-height: 260px; max-width: 520px; }
.book-card.compact.has-cover a { display: grid; grid-template-columns: 180px minmax(0, 1fr); }
.book-card.compact .book-cover-frame { height: 100%; aspect-ratio: auto; border-right: 1px solid var(--line); border-bottom: 0; }
.book-number { color: var(--text-faint); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.book-card h2 {
  margin: 42px 0 12px;
  font-family: var(--serif);
  font-size: 23px;
  font-weight: 500;
  line-height: 1.16;
}
.book-creator { margin: 0; color: var(--text-soft); font-size: 13px; }
.book-card-meta { margin-top: auto; padding-top: 32px; }
.book-card-meta p { margin: 5px 0 0; color: var(--text-faint); font-size: 12px; }
.grade-pills { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.grade-pill {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--text-soft);
  font-size: 10px;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.grade-pill strong { color: var(--text); font-size: 11px; font-weight: 500; }

.toolbar {
  position: sticky;
  z-index: 10;
  top: 78px;
  margin: 0 calc(clamp(20px, 4vw, 64px) * -1) 20px;
  padding: 16px clamp(20px, 4vw, 64px);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line);
  background: rgb(23 24 21 / 96%);
  box-shadow: 0 10px 30px rgb(0 0 0 / 16%);
}
.filter-grid {
  display: grid;
  grid-template-columns: minmax(260px, 2fr) repeat(3, minmax(130px, 1fr)) minmax(150px, 1fr);
  gap: 10px;
}
.field { position: relative; display: block; }
.field > span {
  position: absolute;
  z-index: 1;
  top: 7px;
  left: 12px;
  color: var(--text-faint);
  font-size: 9px;
  letter-spacing: .09em;
  pointer-events: none;
  text-transform: uppercase;
}
.field input, .field select {
  width: 100%;
  height: 52px;
  padding: 21px 34px 7px 11px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--bg);
  color: var(--text);
}
.field input::placeholder { color: #66685f; }
.field select { appearance: none; cursor: pointer; }
.field.select::after {
  position: absolute;
  top: 24px;
  right: 13px;
  width: 6px;
  height: 6px;
  transform: rotate(45deg);
  border-right: 1px solid var(--text-faint);
  border-bottom: 1px solid var(--text-faint);
  content: "";
  pointer-events: none;
}
.grade-filter-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.filter-options { display: flex; align-items: center; justify-content: flex-end; gap: 16px; margin-top: 12px; }
.checkbox-label { display: inline-flex; align-items: center; gap: 8px; color: var(--text-soft); font-size: 12px; cursor: pointer; }
.checkbox-label input, .row-check { accent-color: var(--accent); }
.reset-button, .text-button, .close-button, .link-button {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 4px;
}
.reset-button:hover, .text-button:hover, .close-button:hover, .link-button:hover { color: var(--text); text-decoration-color: var(--accent); }

.results-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 38px; margin-bottom: 8px; color: var(--text-faint); font-size: 12px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); background: var(--bg-raised); }
.catalogue-table { width: 100%; min-width: 1120px; border-collapse: collapse; table-layout: fixed; }
.catalogue-table th {
  position: sticky;
  z-index: 2;
  top: 0;
  height: 42px;
  padding: 0 12px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-faint);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  text-align: left;
  text-transform: uppercase;
}
.catalogue-table th button { width: 100%; padding: 0; border: 0; background: none; color: inherit; cursor: pointer; font: inherit; letter-spacing: inherit; text-align: left; text-transform: inherit; }
.catalogue-table th button:hover, .catalogue-table th button[aria-pressed="true"] { color: var(--accent-bright); }
.catalogue-table td { height: 55px; padding: 8px 12px; border-bottom: 1px solid var(--line-soft); color: var(--text-soft); font-size: 13px; vertical-align: middle; }
.catalogue-table tbody tr:last-child td { border-bottom: 0; }
.catalogue-table tbody tr:hover td { background: var(--panel-hover); }
.catalogue-table .select-col { width: 42px; text-align: center; }
.catalogue-table .title-col { width: 27%; }
.catalogue-table .composer-col { width: 16%; }
.catalogue-table .year-col { width: 6%; }
.catalogue-table .grade-col { width: 6%; text-align: center; }
.catalogue-table .grade-pianoworld { width: 10%; }
.catalogue-table .book-col { width: 23%; }
.piece-link, .book-link { color: var(--text); text-decoration: none; }
.piece-link { font-family: var(--serif); font-size: 15px; }
.piece-link:hover, .book-link:hover { color: var(--accent-bright); text-decoration: underline; text-underline-offset: 3px; }
.filter-link { padding: 0; border: 0; background: none; color: inherit; cursor: pointer; text-align: left; }
.filter-link:hover { color: var(--accent-bright); }
.cell-muted { color: var(--text-faint); }
.grade-cell { color: var(--text); font-variant-numeric: tabular-nums; text-align: center; }
.grade-cell.active { background: rgb(199 173 115 / 7%); color: var(--accent-bright); }

.selection-bar {
  position: fixed;
  z-index: 25;
  right: 24px;
  bottom: 72px;
  left: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(620px, calc(100% - 48px));
  margin: auto;
  padding: 12px 14px 12px 18px;
  border: 1px solid var(--accent-dark);
  border-radius: var(--radius);
  background: #24231d;
  box-shadow: var(--shadow);
}
.selection-actions { display: flex; gap: 8px; }
.action-button {
  min-height: 36px;
  padding: 7px 13px;
  border: 1px solid var(--accent-dark);
  border-radius: 2px;
  background: var(--accent);
  color: #17150f;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
}
.action-button.secondary { border-color: var(--line); background: transparent; color: var(--text-soft); }
.action-button:hover { background: var(--accent-bright); }
.action-button.secondary:hover { background: var(--panel-hover); color: var(--text); }

.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; color: var(--text-faint); font-size: 12px; }
.breadcrumbs a { color: var(--text-soft); text-decoration: none; }
.breadcrumbs a:hover { color: var(--accent-bright); }
.detail-header { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: clamp(30px, 7vw, 90px); align-items: start; padding-bottom: 50px; border-bottom: 1px solid var(--line); }
.detail-subtitle { max-width: 680px; margin: 18px 0 0; color: var(--text-soft); font-family: var(--serif); font-size: 20px; }
.metadata-filter-link { text-decoration: underline; text-decoration-color: var(--line); text-underline-offset: 4px; }
.metadata-filter-link:hover { color: var(--accent-bright); text-decoration-color: var(--accent); }
.book-spine {
  position: relative;
  display: flex;
  min-height: 340px;
  padding: 28px 25px 24px 31px;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 12px 15px 0 #0b0c0a, 13px 16px 0 var(--line);
  flex-direction: column;
}
.book-spine::before { position: absolute; inset: 0 auto 0 0; width: 5px; background: var(--book-accent, var(--accent-dark)); content: ""; }
.book-cover-detail {
  display: grid;
  width: 260px;
  min-height: 330px;
  margin: 0;
  padding: 12px;
  border: 1px solid var(--line);
  background: #0d0e0c;
  box-shadow: 12px 15px 0 #0b0c0a, 13px 16px 0 var(--line);
  place-items: center;
}
.book-cover-detail img { display: block; width: 100%; max-height: 390px; object-fit: contain; }
.book-spine .spine-title { margin: 50px 0 10px; font-family: var(--serif); font-size: 23px; line-height: 1.15; }
.book-spine .spine-meta { margin-top: auto; color: var(--text-faint); font-size: 12px; }
.metadata-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 38px 0; border-top: 1px solid var(--line-soft); border-left: 1px solid var(--line-soft); }
.metadata-grid div { min-height: 88px; padding: 15px 18px; border-right: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.metadata-grid dt { margin-bottom: 5px; color: var(--text-faint); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.metadata-grid dd { margin: 0; color: var(--text); }
.metadata-grid a { text-decoration-color: var(--line); text-underline-offset: 3px; }
.metadata-grid a:hover { color: var(--accent-bright); }
.detail-section { margin-top: 46px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.section-heading h2 { margin: 0; font-family: var(--serif); font-size: 28px; font-weight: 400; }
.section-heading p { margin: 0; color: var(--text-faint); font-size: 12px; }
.prose-note { padding: 20px 22px; border-left: 2px solid var(--accent-dark); background: var(--bg-raised); color: var(--text-soft); }
.source-list { margin: 0; padding-left: 20px; color: var(--text-soft); }
.source-list li { margin: 8px 0; overflow-wrap: anywhere; }
.source-list a:hover { color: var(--accent-bright); }
.contents-list { border-top: 1px solid var(--line); }
.content-row { display: grid; grid-template-columns: 46px minmax(200px, 1fr) minmax(140px, .45fr) 70px 180px; gap: 12px; align-items: center; min-height: 58px; padding: 8px 10px; border-bottom: 1px solid var(--line-soft); }
.content-row:hover { background: var(--panel-hover); }
.content-number { color: var(--text-faint); font-size: 11px; font-variant-numeric: tabular-nums; }
.content-title { color: var(--text); font-family: var(--serif); text-decoration: none; }
.content-title:hover { color: var(--accent-bright); }
.content-meta { color: var(--text-faint); font-size: 12px; }
.status-notice { margin-bottom: 22px; padding: 12px 15px; border: 1px solid var(--accent-dark); color: var(--text-soft); font-size: 13px; }
.empty-state { padding: 55px 25px; border: 1px solid var(--line); background: var(--bg-raised); color: var(--text-soft); text-align: center; }

.piece-header { padding: 10px 0 45px; border-bottom: 1px solid var(--line); }
.piece-header .detail-title { max-width: 970px; }
.piece-header .detail-subtitle { font-size: 18px; }
.piece-layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(260px, .6fr); gap: clamp(40px, 7vw, 90px); margin-top: 40px; }
.piece-layout.single { grid-template-columns: 1fr; }
.grade-card { padding: 18px; border: 1px solid var(--line); background: var(--bg-raised); }
.grade-card + .grade-card { margin-top: 10px; }
.grade-card-header { display: flex; align-items: baseline; justify-content: space-between; gap: 15px; }
.grade-filter-link { border-radius: 2px; text-decoration: none; }
.grade-filter-link:hover h3 { color: var(--text); }
.grade-filter-link:hover .grade-number { color: var(--text); }
.grade-card h3 { margin: 0; color: var(--text-soft); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.grade-number { color: var(--accent-bright); font-family: var(--serif); font-size: 32px; }
.grade-details { margin: 8px 0 0; color: var(--text-faint); font-size: 12px; }
.grade-source { display: inline-block; margin-top: 12px; color: var(--text-soft); font-size: 11px; overflow-wrap: anywhere; }
.related-list { margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.related-list li { padding: 15px 0; border-bottom: 1px solid var(--line-soft); }
.related-list a { color: var(--text); text-decoration: none; }
.related-list a:hover { color: var(--accent-bright); }
.related-list small { display: block; margin-top: 3px; color: var(--text-faint); }

.site-footer { display: flex; align-items: center; justify-content: space-between; min-height: 56px; padding: 0 clamp(20px, 4vw, 64px) 58px; border-top: 1px solid var(--line-soft); color: var(--text-faint); font-size: 11px; }
.site-footer p { margin: 0; }
.shortcut-dock {
  position: fixed;
  z-index: 30;
  right: 16px;
  bottom: 14px;
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgb(28 29 25 / 96%);
  box-shadow: 0 8px 28px rgb(0 0 0 / 30%);
  color: var(--text-faint);
  font-size: 10px;
  backdrop-filter: blur(12px);
}
.shortcut-dock span { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
kbd { display: inline-block; min-width: 24px; padding: 1px 6px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 3px; background: var(--bg); color: var(--text-soft); font-family: var(--sans); font-size: 10px; text-align: center; }
.toast { position: fixed; z-index: 50; right: 22px; bottom: 66px; max-width: 320px; padding: 11px 15px; transform: translateY(20px); border: 1px solid var(--accent-dark); background: #28261e; color: var(--text); font-size: 12px; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; }
.toast.visible { transform: translateY(0); opacity: 1; }
.error-state { max-width: 700px; margin: 80px auto; padding: 30px; border: 1px solid var(--danger); background: var(--bg-raised); }
.error-state h1 { margin-top: 0; font-family: var(--serif); font-weight: 400; }
.noscript { padding: 20px; background: var(--danger); color: var(--bg); text-align: center; }

@media (max-width: 1000px) {
  .filter-grid { grid-template-columns: 2fr 1fr 1fr; }
  .filter-grid > :nth-child(4), .filter-grid > :nth-child(5) { grid-column: span 1; }
  .detail-header { grid-template-columns: minmax(0, 1fr) 220px; }
  .book-spine { min-height: 300px; }
  .content-row { grid-template-columns: 38px minmax(200px, 1fr) minmax(130px, .5fr) 70px; }
  .content-row .row-grades { display: none; }
}

@media (max-width: 720px) {
  .site-header { min-height: 68px; padding-inline: 18px; }
  .brand small { display: none; }
  .brand-mark { display: none; }
  .primary-nav { gap: 18px; }
  .primary-nav a { font-size: 11px; }
  .page { padding: 36px 16px 65px; }
  .page-heading { display: block; }
  .page-heading h1, .detail-title { font-size: clamp(36px, 12vw, 54px); }
  .page-count { display: block; margin-top: 16px; }
  .archive-summary { grid-template-columns: 1fr 1fr; }
  .archive-summary div:nth-child(2) { border-right: 0; }
  .archive-summary div:last-child { grid-column: 1 / -1; border-top: 1px solid var(--line-soft); }
  .book-filter-bar { grid-template-columns: 1fr 1fr; }
  .book-filter-actions { grid-column: 1 / -1; justify-content: space-between; min-height: auto; }
  .book-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .book-card { min-height: 270px; }
  .book-card a { padding: 18px 15px 16px 20px; }
  .book-card h2 { margin-top: 28px; font-size: 18px; }
  .grade-pills { display: none; }
  .toolbar, .book-filter-bar { top: 68px; margin-inline: -16px; padding: 12px 16px; }
  .filter-grid { grid-template-columns: 1fr 1fr; }
  .filter-grid .search-field { grid-column: 1 / -1; }
  .filter-grid > :last-child { grid-column: 1 / -1; }
  .filter-options { align-items: start; }
  .table-wrap { margin-inline: -16px; border-right: 0; border-left: 0; }
  .catalogue-table { min-width: 720px; }
  .catalogue-table .composer-col { width: 20%; }
  .catalogue-table .book-col { width: 24%; }
  .catalogue-table .grade-pianoworld { width: 14%; }
  .catalogue-table .grade-col.system-secondary, .catalogue-table td.system-secondary { display: none; }
  .detail-header { display: flex; flex-direction: column-reverse; }
  .book-spine, .book-cover-detail { width: min(230px, 75vw); min-height: 290px; }
  .metadata-grid { grid-template-columns: 1fr 1fr; }
  .piece-layout { grid-template-columns: 1fr; }
  .content-row { grid-template-columns: 34px minmax(170px, 1fr) 65px; }
  .content-row .row-composer, .content-row .row-grades { display: none; }
  .site-footer { padding: 0 16px 58px; }
  .site-footer p { max-width: 100%; }
  .shortcut-dock { right: 10px; bottom: 10px; left: 10px; justify-content: center; gap: 12px; }
}

@media (max-width: 440px) {
  .book-grid { grid-template-columns: 1fr; }
  .book-card { min-height: 240px; }
  .archive-summary { grid-template-columns: 1fr; }
  .archive-summary div, .archive-summary div:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--line-soft); }
  .archive-summary div:last-child { grid-column: auto; border-top: 0; border-bottom: 0; }
  .book-filter-bar { grid-template-columns: 1fr; }
  .book-filter-actions { grid-column: auto; }
  .filter-grid { grid-template-columns: 1fr; }
  .filter-grid > * { grid-column: 1 / -1; }
  .metadata-grid { grid-template-columns: 1fr; }
  .book-card.compact.has-cover a { display: flex; }
  .book-card.compact .book-cover-frame { height: auto; aspect-ratio: 3 / 4; border-right: 0; border-bottom: 1px solid var(--line); }
  .selection-bar { right: 10px; bottom: 64px; left: 10px; width: auto; }
  .selection-bar > span { max-width: 90px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}