:root {
  --ground: #f3f2eb;
  --ink: #222a23;
  --accent: #42604b;
  --muted: color-mix(in srgb, var(--ink) 83%, var(--ground));
  --rule: color-mix(in srgb, var(--ink) 23%, var(--ground));
  --field: color-mix(in srgb, var(--accent) 12%, var(--ground));
  --field-strong: color-mix(in srgb, var(--accent) 20%, var(--ground));
  --print: color-mix(in srgb, var(--accent) 55%, var(--ink));
  --pad: clamp(18px, 4.4vw, 70px);
  --gap: clamp(18px, 3vw, 44px);
  --small: .8125rem;
  --body: 1rem;
  --medium: 1.25rem;
  --heading: 1.5625rem;
  --display: clamp(2.05rem, 4.5vw, 4.15rem);
  --sans: system-ui, "PingFang SC", "Hiragino Sans", "Malgun Gothic", sans-serif;
  --serif: "Songti SC", "Songti TC", "Hiragino Mincho ProN", "Noto Serif CJK SC", "Batang", Georgia, serif;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.65;
  line-break: strict;
}
*, *::before, *::after { box-sizing: border-box; }
body, h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.24; overflow-wrap: anywhere; }
h1 { font-size: var(--display); font-weight: 650; }
h2 { font-size: var(--heading); font-weight: 650; }
h3 { font-size: var(--medium); font-weight: 650; }
p { max-inline-size: 35em; overflow-wrap: anywhere; }
:lang(zh-Hans) p, :lang(zh-Hant) p, :lang(ja) p, :lang(ko) p { max-inline-size: 36ic; }
button, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, select:focus-visible, [tabindex="0"]:focus-visible { outline: 2px solid var(--print); outline-offset: 3px; }
:focus:not(:focus-visible) { outline: none; }
svg { display: block; max-width: 100%; }
[id] { scroll-margin-top: 24px; }
.wrap { max-width: 1360px; padding-inline: var(--pad); margin-inline: auto; }
.skip { position: absolute; z-index: 4; inset-block-start: 8px; inset-inline-start: var(--pad); padding: 10px; background: var(--ground); transform: translateY(-150%); }
.skip:focus { transform: none; }
.topbar { max-width: 1360px; margin-inline: auto; min-height: 76px; padding: 10px var(--pad); display: grid; grid-template-columns: 1fr auto 1fr; gap: 26px; align-items: center; }
.wordmark { justify-self: start; display: inline-flex; align-items: center; min-height: 44px; gap: 8px; font-size: var(--medium); font-weight: 750; white-space: nowrap; }
.wordmark svg { width: 23px; fill: none; stroke: var(--print); stroke-width: 2; }
.topbar nav { display: flex; gap: 27px; font-size: var(--small); }
.topbar nav a { display: grid; align-items: center; min-height: 44px; }
.topbar nav a:hover, .edition > a:hover, .back-link:hover, .footer a:hover { text-decoration: underline; text-underline-offset: 4px; }
.language { justify-self: end; display: flex; align-items: center; gap: 4px; border: 1px solid var(--rule); padding-inline-start: 8px; }
.language svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 1.35; pointer-events: none; }
select { appearance: none; min-height: 44px; background: transparent; cursor: pointer; border: 0; padding: 0 23px 0 8px; font-size: var(--small); }
.language, .edition-select { position: relative; }
.language::after, .edition-select::after { content: ""; position: absolute; right: 9px; bottom: 20px; width: 6px; height: 6px; border: solid currentColor; border-width: 0 1px 1px 0; transform: rotate(45deg); pointer-events: none; }
.label, .ordinal, .section-head > span, .app-number, .plate-corner, .plate-index, .shelf-caption { font-size: var(--small); font-variant-numeric: tabular-nums; color: var(--muted); }
.label { margin-bottom: 1.4em; }
.lead { margin-top: 20px; color: var(--muted); }
.action { display: inline-flex; align-items: center; justify-content: center; gap: 18px; min-height: 44px; padding: 10px 15px; margin-top: 25px; background: var(--ink); color: var(--ground); border: 1px solid var(--ink); font-size: var(--small); font-weight: 650; }
.action:hover { background: var(--print); border-color: var(--print); }
.footer { max-width: 1360px; margin: 72px auto 0; padding: 24px var(--pad) max(24px,env(safe-area-inset-bottom)); display: flex; align-items: center; flex-wrap: wrap; gap: 14px; border-top: 1px solid var(--rule); font-size: var(--small); }
.footer span { color: var(--muted); }
.footer a { margin-inline-start: auto; min-height: 44px; display: grid; place-items: center; }
.atlas-hero { min-height: min(600px, 71svh); display: grid; grid-template-columns: 1fr .93fr; align-items: center; gap: var(--gap); padding-block: 30px 52px; }
.atlas-hero h1, .detail h1 { font-family: var(--serif); font-weight: 650; }
.atlas-hero h1 { font-size: clamp(2.6rem, 5.5vw, 5.1rem); }
.atlas-art, .detail-art { display: grid; place-items: center; position: relative; aspect-ratio: 1.14; min-width: 0; background: var(--field); color: var(--print); }
.atlas-art .artwork { width: min(96%, 530px); }
.plate-corner, .plate-index { position: absolute; }
.plate-corner { inset: 13px auto auto 16px; }
.plate-index { inset: auto 16px 13px auto; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 8px; padding-block: 14px; border-top: 1px solid var(--rule); margin-bottom: 16px; }
.atlas-collection { padding-top: 12px; }
.layout-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); column-gap: var(--gap); row-gap: 38px; }
.layout-card { min-width: 0; }
.layout-preview { display: block; }
.layout-preview:hover .card-title strong { text-decoration: underline; text-underline-offset: 4px; }
.thumbnail { width: 100%; aspect-ratio: 200 / 126; border: 1px solid var(--rule); }
.card-title { display: flex; align-items: baseline; gap: 10px; padding-top: 13px; }
.card-title strong { font-size: var(--medium); line-height: 1.24; }
.card-title > :last-child { margin-inline-start: auto; color: var(--print); }
.layout-card p { font-size: var(--small); margin-top: 5px; color: var(--muted); }
.preview-swatches { display: flex; margin-left: -5px; }
.preview-swatches a { display: grid; place-items: center; width: clamp(34px, 9vw, 44px); height: 44px; }
.preview-swatches a span { width: 21px; height: 21px; border-radius: 50%; background: var(--sample); border: 1px solid var(--rule); }
.preview-swatches a:hover span { outline: 1px solid var(--ink); outline-offset: 3px; }
.edition { min-height: 58px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 4px 20px; color: var(--muted); font-size: var(--small); }
.edition > a { display: inline-flex; align-items: center; gap: 7px; min-height: 44px; }
.edition-controls { display: flex; flex-wrap: wrap; gap: 8px 14px; min-width: 0; }
.edition-select { min-width: 0; display: flex; align-items: center; gap: 5px; }
.edition-select select { max-width: 100%; border-bottom: 1px solid var(--rule); }
.intro { padding-block: clamp(30px, 7vw, 100px); }
.intro-art { color: var(--print); min-width: 0; }
.intro-art svg { width: 100%; }
.latin { margin-inline-start: .25em; font-size: .8em; color: var(--muted); font-weight: 500; white-space: nowrap; }
.app-list, .app-tile, .app-copy > div { min-width: 0; }
.tile-inner { display: block; height: 100%; }
a.tile-inner:hover h3 { text-decoration: underline; text-underline-offset: 4px; }
.app-visual { display: grid; place-items: center; min-width: 0; background: var(--field); color: var(--print); }
.app-visual svg { width: min(44%, 122px); }
.app-tile:nth-of-type(even) .app-visual { background: var(--field-strong); }
.app-copy { display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: baseline; gap: 10px; padding-block: 13px; }
.app-copy p { color: var(--muted); font-size: var(--small); margin-top: 6px; }
.detail-arrow { color: var(--print); }
.philosophy { padding-block: clamp(28px, 6vw, 68px); margin-top: clamp(34px, 7vw, 80px); border-top: 1px solid var(--rule); display: grid; grid-template-columns: 1fr 1fr; gap: 20px var(--gap); align-items: start; }
.philosophy p:last-child { color: var(--muted); }
.philosophy .label { margin-bottom: .6em; }

/* Central axis */
[data-layout="axis"] .intro { display: grid; justify-items: center; text-align: center; padding-block: 55px 46px; }
[data-layout="axis"] .intro h1 { font-family: var(--serif); }
[data-layout="axis"] .intro .lead { margin-inline: auto; }
[data-layout="axis"] .intro-art { width: min(100%, 340px); grid-row: 1; }
[data-layout="axis"] .intro-art svg { aspect-ratio: 400 / 245; }
.axis-list, [data-layout="axis"] .philosophy { max-width: 690px; margin-inline: auto; }
.axis-list .section-head { justify-content: center; }
.axis-list .tile-inner { display: grid; grid-template-columns: 64px 1fr; gap: 20px; align-items: center; border-bottom: 1px solid var(--rule); padding: 6px 0; }
.axis-list .app-visual { aspect-ratio: 1; border-radius: 50%; }
.axis-list .app-visual svg { width: 65%; }
[data-layout="axis"] .philosophy { display: block; text-align: center; }
[data-layout="axis"] .philosophy p { margin-inline: auto; }
[data-layout="axis"] .philosophy div + p { margin-top: 18px; }

/* Offset composition */
[data-layout="offset"] .intro { display: grid; grid-template-columns: .75fr 1.25fr; gap: var(--gap); align-items: end; }
[data-layout="offset"] .intro-text { padding-bottom: clamp(0px, 5vw, 68px); }
[data-layout="offset"] .intro-art { background: var(--field-strong); aspect-ratio: 1.23; display: grid; place-items: center; }
[data-layout="offset"] .intro-art svg { width: 96%; }
.index-list .app-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 var(--gap); }
.index-list .tile-inner { display: grid; grid-template-columns: 62px 1fr; gap: 12px; align-items: center; border-bottom: 1px solid var(--rule); }
.index-list .app-visual { aspect-ratio: 1.15; }

/* Continuous flow */
[data-layout="stream"] .intro { padding-inline: min(10%, 105px); }
[data-layout="stream"] .intro h1 { font-family: var(--serif); }
.stream-list .app-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 25px var(--gap); align-items: start; }
.stream-list .app-visual { aspect-ratio: 2.1; }
.stream-list :is(.item-1,.item-4,.item-8,.philosophy) { grid-column: 1 / -1; }
.stream-list :is(.item-1,.item-4,.item-8) .app-visual { aspect-ratio: 3.5; }
.stream-list .item-1 .app-visual { background: var(--field-strong); }
.stream-list .philosophy { margin-block: 20px; padding-inline: min(10%, 105px); }

/* Pinned desktop index */
.rail-frame { display: grid; grid-template-columns: minmax(225px,.55fr) minmax(0,1.45fr); gap: var(--gap); padding-top: 36px; }
.rail-aside { align-self: start; position: sticky; top: 20px; max-height: calc(100svh - 40px); overflow: auto; padding-inline-end: 12px; }
.rail-aside .intro { padding-block: 0 18px; }
.rail-aside h1 { font-size: var(--heading); }
.rail-aside .label { margin-bottom: .5em; }
.rail-aside .action { display: none; }
.rail-nav { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 3px 12px; border-top: 1px solid var(--rule); padding-top: 8px; }
.rail-nav a { min-height: 44px; display: flex; align-items: center; gap: .25em; font-size: var(--small); color: var(--muted); }
.rail-nav a:hover { text-decoration: underline; }
.rail-list .tile-inner { display: grid; grid-template-columns: minmax(78px,.37fr) minmax(0,1fr); gap: 16px; align-items: center; padding-block: 12px; border-bottom: 1px solid var(--rule); }
.rail-list .app-visual { aspect-ratio: 1.75; }

/* Modular grid */
[data-layout="grid"] .intro { display: grid; grid-template-columns: 1fr; }
.matrix-list .app-list { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); border: 1px solid var(--rule); background: var(--rule); gap: 1px; }
.matrix-list .app-tile { background: var(--ground); }
.matrix-list .tile-inner { padding: 12px; }
.matrix-list .app-visual { aspect-ratio: 1.33; background: transparent !important; }
.matrix-list .app-copy { display: flex; flex-wrap: wrap; }
.matrix-list .app-copy > div { flex: 1 1 65%; }

/* Card collage */
[data-layout="cards"] .intro { padding-block: 36px 18px; }
.collage .app-list { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 12px; }
.collage .app-tile { background: var(--field); border-radius: 18px; }
.collage .app-tile:nth-child(3n) { background: var(--field-strong); }
.collage .tile-inner { display: grid; grid-template-rows: 1fr auto; border-radius: inherit; }
.collage .app-visual { min-height: 105px; background: transparent !important; }
.collage .app-visual svg { max-height: 114px; }
.collage .app-copy { padding: 12px; }
.collage .item-1 { grid-column: 1 / 3; grid-row: 1 / 3; background: var(--field-strong); }
.collage .item-1 .app-visual svg { width: 53%; max-width: 250px; max-height: none; }
.collage :is(.item-5,.item-10) { grid-column: span 2; }

/* Broadsheet */
[data-layout="paper"] .intro { border-block: 3px double var(--ink); text-align: center; padding-block: 26px; margin-top: 22px; }
[data-layout="paper"] h1, [data-layout="paper"] h2, [data-layout="paper"] h3 { font-family: var(--serif); }
[data-layout="paper"] .intro :is(.label,.lead) { margin-inline: auto; }
[data-layout="paper"] .intro .action { background: transparent; border: 0; color: var(--ink); padding-block: 0; margin-top: 12px; text-decoration: underline; text-underline-offset: 4px; }
.paper-columns { display: grid; grid-template-columns: .7fr 1.35fr .95fr; margin-top: 25px; }
.paper-columns > div { min-width: 0; padding-inline: clamp(12px, 2vw, 28px); }
.paper-columns > div + div { border-inline-start: 1px solid var(--rule); }
.paper-columns > :first-child { padding-inline-start: 0; }
.paper-columns > :last-child { padding-inline-end: 0; }
.paper-note .philosophy { display: block; margin: 0; border: 0; padding: 0; }
.paper-note .philosophy h2 { margin-block: 15px; }
.paper-cover .item-1 .app-visual { aspect-ratio: 1.6; }
.paper-cover .item-1 .app-copy { border-bottom: 1px solid var(--rule); }
.paper-index .section-head { border: 0; margin: 0; padding-top: 0; }
.paper-columns .app-tile:not(.item-1) .tile-inner { border-bottom: 1px solid var(--rule); }
.paper-columns .app-tile:not(.item-1) .app-visual { display: none; }

/* Night gallery */
[data-layout="hall"] .intro { text-align: center; padding-block: 50px 42px; }
[data-layout="hall"] .intro :is(.label,.lead) { margin-inline: auto; }
.gallery-list .app-list { display: grid; gap: clamp(24px, 7vw, 96px); }
.gallery-list .app-tile { max-width: 930px; width: 100%; margin-inline: auto; }
.gallery-list .app-visual { aspect-ratio: 2.35; background: radial-gradient(ellipse at 42% 25%, var(--field-strong), var(--field)) !important; }
.gallery-list .app-visual svg { width: min(36%, 178px); }
.gallery-list .app-copy { max-width: 450px; margin-inline: auto; }
[data-layout="hall"] .philosophy { max-width: 930px; margin-inline: auto; }

/* Vertical track */
[data-layout="track"] .intro { display: grid; grid-template-columns: 1fr .65fr; align-items: center; gap: var(--gap); padding-block: 32px; }
[data-layout="track"] .intro-art svg { max-height: 340px; }
.track-list .app-list { position: relative; display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); column-gap: max(var(--gap), 42px); row-gap: 12px; }
.track-list .app-list::before { content: ""; position: absolute; inset-block: 0; left: 50%; width: 1px; background: var(--rule); }
.track-list .app-tile { position: relative; grid-row: var(--stop); grid-column: 1; }
.track-list .app-tile:nth-child(even) { grid-column: 2; }
.track-list .app-tile:nth-child(1) { --stop: 1; }
.track-list .app-tile:nth-child(2) { --stop: 2; }
.track-list .app-tile:nth-child(3) { --stop: 3; }
.track-list .app-tile:nth-child(4) { --stop: 4; }
.track-list .app-tile:nth-child(5) { --stop: 5; }
.track-list .app-tile:nth-child(6) { --stop: 6; }
.track-list .app-tile:nth-child(7) { --stop: 7; }
.track-list .app-tile:nth-child(8) { --stop: 8; }
.track-list .app-tile:nth-child(9) { --stop: 9; }
.track-list .app-tile:nth-child(10) { --stop: 10; }
.track-list .tile-inner { display: grid; grid-template-columns: 74px minmax(0,1fr); gap: 12px; align-items: center; }
.track-list .app-visual { aspect-ratio: 1; }
.track-list .app-tile::after { content: ""; position: absolute; top: 32px; right: calc(max(var(--gap), 42px) / -2 - 4px); width: 9px; height: 9px; border-radius: 50%; background: var(--print); }
.track-list .app-tile:nth-child(even)::after { right: auto; left: calc(max(var(--gap), 42px) / -2 - 4px); }

/* Horizontal shelves */
[data-layout="shelf"] .intro { padding-block: 36px 30px; }
.shelf-row + .shelf-row { margin-top: 24px; }
.shelf-caption { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.shelf-buttons { display: flex; gap: 6px; }
.shelf-buttons button, .duration button, .secondary { min-width: 44px; min-height: 44px; padding: 6px 9px; border: 1px solid var(--rule); background: var(--ground); }
.shelf-buttons button:hover, .duration button:hover, .secondary:hover { background: var(--field); }
.shelf-scroll { display: grid; grid-auto-flow: column; grid-auto-columns: clamp(174px, 26vw, 295px); gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; scrollbar-color: var(--rule) var(--ground); }
.shelf-scroll .app-tile { scroll-snap-align: start; }
.shelf-scroll .app-visual { aspect-ratio: 1.46; }

/* App detail */
.detail { padding-top: 12px; }
.back-link { min-height: 44px; display: inline-flex; align-items: center; font-size: var(--small); }
.detail-hero { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: var(--gap); padding-block: 18px 42px; }
.detail h1 { margin-bottom: 12px; }
.detail h1 .latin { font-family: var(--sans); font-size: .44em; }
.detail-art { aspect-ratio: 1.38; }
.detail-art svg { width: min(55%, 252px); }
.detail-body { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap); border-top: 1px solid var(--rule); padding-top: var(--gap); }
.timer { padding: clamp(16px, 4vw, 40px); background: var(--field); }
.duration, .timer-controls { display: flex; gap: 8px; flex-wrap: wrap; }
.duration { margin-top: 14px; }
.duration button[aria-pressed="true"] { background: var(--ink); color: var(--ground); border-color: var(--ink); }
.clock { font-size: var(--display); font-variant-numeric: tabular-nums; line-height: 1.24; margin-block: 15px; }
.timer-controls .action { margin-top: 0; }
.timer-status:not(:empty) { margin-top: 13px; }
.instructions { padding: 12px 0; }
.instructions ol { list-style: none; padding: 0; }
.instructions li { border-bottom: 1px solid var(--rule); padding-block: 12px; display: flex; gap: 12px; }
.instructions li span { color: var(--muted); font-size: var(--small); }

@media (min-width: 641px) {
  .collage .item-4 { grid-column: span 2; }
}
@media (max-width: 900px) {
  .matrix-list .app-list { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .paper-columns { grid-template-columns: .73fr 1fr; }
  .paper-columns > .paper-index { grid-column: 1 / -1; border-inline-start: 0; padding: 20px 0 0; }
}
@media (max-width: 640px) {
  .topbar { min-height: 62px; grid-template-columns: minmax(0,1fr) auto; gap: 5px 12px; }
  .topbar nav { grid-row: 2; grid-column: 1 / -1; display: flex; justify-content: space-between; border-top: 1px solid var(--rule); }
  .topbar .language { grid-column: 2; grid-row: 1; }
  .atlas-hero, .detail-hero { grid-template-columns: minmax(0,1fr); min-height: 0; padding-top: 25px; gap: 22px; }
  .atlas-art { aspect-ratio: 1.55; }
  .atlas-art .artwork { max-height: 100%; width: min(82%, 420px); }
  .layout-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px 13px; }
  .card-title { gap: 5px; }
  .card-title strong { font-size: var(--body); overflow-wrap: anywhere; }
  .preview-swatches { margin-left: -2px; }
  .preview-swatches a { width: 20%; min-width: 0; }
  .preview-swatches a span { width: 17px; height: 17px; }
  .edition { padding-block: 0 12px; }
  .edition-controls { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); width: 100%; }
  .edition-select { display: grid; gap: 0; }
  .edition-select select { padding-inline: 2px 18px; }
  .intro { padding-block: 27px; }
  .philosophy { grid-template-columns: 1fr; }
  [data-layout="axis"] .intro { padding-block: 18px 38px; }
  [data-layout="axis"] .intro-art { max-width: 258px; }
  [data-layout="offset"] .intro { grid-template-columns: minmax(0,1fr); align-items: start; }
  [data-layout="offset"] .intro-text { padding-inline-end: 10%; }
  [data-layout="offset"] .intro-art { width: 88%; justify-self: end; aspect-ratio: 1.7; }
  .index-list .app-list { grid-template-columns: 1fr; }
  .stream-list .app-visual { aspect-ratio: 1.5; }
  .stream-list :is(.item-1,.item-4,.item-8) .app-visual { aspect-ratio: 2.4; }
  .stream-list .app-copy, .matrix-list .app-copy, .collage .app-copy { display: flex; flex-wrap: wrap; }
  .stream-list .app-copy > div, .collage .app-copy > div { flex: 1 1 62%; }
  .rail-frame { display: block; padding-top: 16px; }
  .rail-aside { position: static; max-height: none; overflow: visible; padding-inline-end: 0; margin-bottom: 26px; }
  .rail-nav { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .matrix-list .app-list, .collage .app-list { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .matrix-list .tile-inner { padding: 8px; }
  .collage .item-1 { grid-row: auto; }
  .collage .item-1 .app-visual { min-height: 160px; }
  .collage .item-1 .app-visual svg { max-width: 145px; }
  .paper-columns { display: flex; flex-direction: column; }
  .paper-columns > div, .paper-columns > :last-child { border: 0 !important; padding-inline: 0; }
  .paper-note { order: 1; margin-top: 25px; padding-block: 18px; }
  .paper-cover { padding-bottom: 16px; }
  .paper-index { border-top: 1px solid var(--rule) !important; }
  .gallery-list .app-visual { aspect-ratio: 1.65; }
  [data-layout="track"] .intro { grid-template-columns: minmax(0,1fr) minmax(80px,.46fr); gap: 4px; }
  [data-layout="track"] .intro-art svg { aspect-ratio: .8; }
  .track-list .app-list { display: block; padding-inline-start: 22px; }
  .track-list .app-list::before { left: 5px; }
  .track-list .app-tile::after, .track-list .app-tile:nth-child(even)::after { right: auto; left: -21px; }
  .track-list .tile-inner { padding-block: 5px; grid-template-columns: 57px minmax(0,1fr); }
  .shelf-scroll { grid-auto-columns: 70%; }
  .detail-body { grid-template-columns: 1fr; }
  .footer { margin-top: 45px; }
}
@media (max-width: 365px) {
  :root { --pad: 15px; }
  .layout-grid { grid-template-columns: 1fr; }
  .preview-swatches a { width: 44px; }
  .card-title strong { font-size: var(--medium); }
  .atlas-hero h1 { font-size: 2.35rem; }
  .rail-nav { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

/* Layout volumes */
.atlas-actions { display: flex; align-items: end; flex-wrap: wrap; gap: 0 18px; }
.atlas-all { display: inline-flex; align-items: center; min-height: 44px; font-size: var(--small); text-decoration: underline; text-underline-offset: 4px; }
.atlas-volume + .atlas-volume { margin-top: clamp(45px, 8vw, 92px); }
.atlas-volume .section-head { border-top: 0; border-bottom: 1px solid var(--rule); padding-top: 2px; margin-bottom: 22px; }
.atlas-volume .section-head h3 { color: var(--muted); font-size: var(--body); }
.edition-select select { min-width: 0; text-overflow: ellipsis; }

/* Accordion folio */
[data-layout="fold"] .home { max-width: 1070px; }
[data-layout="fold"] .intro { padding-block: clamp(26px, 5vw, 66px); border-inline-start: 4px solid var(--print); padding-inline-start: var(--gap); margin-block: 22px 35px; }
[data-layout="fold"] h1 { font-family: var(--serif); }
.fold-list details { border-top: 1px solid var(--rule); }
.fold-list details:last-child { border-bottom: 1px solid var(--rule); }
.fold-list summary { min-height: 54px; cursor: pointer; list-style: none; display: grid; grid-template-columns: 2rem 1fr 16px; gap: 12px; align-items: center; padding-inline: 10px 15px; }
.fold-list summary::-webkit-details-marker { display: none; }
.fold-list summary:focus-visible { outline: 2px solid var(--print); outline-offset: -2px; }
.fold-list details[open] summary { background: var(--field-strong); }
.fold-icon { position: relative; display: block; width: 12px; height: 12px; color: var(--print); }
.fold-icon::before, .fold-icon::after { content: ""; position: absolute; top: 5px; left: 0; width: 12px; height: 1px; background: currentColor; }
.fold-icon::after { transform: rotate(90deg); }
.fold-list details[open] .fold-icon::after { display: none; }
.fold-list .tile-inner { display: grid; grid-template-columns: minmax(78px,.4fr) minmax(0,1fr); min-height: 126px; align-items: stretch; background: var(--field); }
.fold-list .app-visual { background: transparent !important; }
.fold-list .app-visual svg { width: min(60%, 86px); }
.fold-list .app-copy { align-self: center; padding-inline: 12px; }
.fold-list .app-copy .app-number { display: none; }

/* Orbital atlas */
.orbit-list { padding-top: 24px; }
.orbit-map { position: relative; min-height: 590px; }
.orbit-map::before { content: ""; position: absolute; inset: 10% 11%; border: 1px solid var(--rule); border-radius: 50%; pointer-events: none; }
.orbit-center { position: absolute; display: grid; place-items: center; inset: 20% 24%; text-align: center; }
.orbit-center .intro { padding: 0; }
.orbit-center .action { display: none; }
.orbit-center :is(.label,.lead) { margin-inline: auto; }
.orbit-center h1 { font-family: var(--serif); }
.orbit-map .app-tile { width: min(16%, 185px); position: absolute; inset-inline-start: var(--x); inset-block-start: var(--y); transform: translate(-50%,-50%); text-align: center; }
.orbit-map .app-visual { width: 58px; aspect-ratio: 1; border: 1px solid var(--rule); border-radius: 50%; margin-inline: auto; background: var(--ground) !important; }
.orbit-map .item-1 .app-visual { background: var(--field-strong) !important; border-color: var(--print); }
.orbit-map .app-visual svg { width: 61%; }
.orbit-map .app-copy { display: block; padding: 6px 0; background: var(--ground); }
.orbit-map .app-copy h3 { font-size: var(--body); }
.orbit-map .app-copy p { font-size: var(--small); }
.orbit-map .app-number, .orbit-map .latin { display: none; }
.orbit-map .detail-arrow { display: block; }
.orbit-map .item-1 { --x: 50%; --y: 11%; }
.orbit-map .item-2 { --x: 72%; --y: 16%; }
.orbit-map .item-3 { --x: 87%; --y: 32%; }
.orbit-map .item-4 { --x: 88%; --y: 66%; }
.orbit-map .item-5 { --x: 72%; --y: 84%; }
.orbit-map .item-6 { --x: 50%; --y: 89%; }
.orbit-map .item-7 { --x: 28%; --y: 84%; }
.orbit-map .item-8 { --x: 12%; --y: 66%; }
.orbit-map .item-9 { --x: 13%; --y: 32%; }
.orbit-map .item-10 { --x: 28%; --y: 16%; }

/* Three workrooms */
[data-layout="rooms"] .intro { padding-block: 42px; }
.rooms-grid { display: grid; grid-template-columns: 1.15fr 1fr .95fr; gap: clamp(12px, 2vw, 26px); align-items: start; }
.workroom { min-width: 0; background: var(--field); padding: clamp(12px, 2vw, 24px); }
.workroom:nth-child(2) { margin-top: 40px; background: var(--field-strong); }
.workroom:nth-child(3) { margin-top: 80px; }
.room-sign { display: flex; flex-wrap: wrap; align-items: baseline; gap: 12px; margin-bottom: 20px; }
.room-sign > span { font: 650 var(--display)/1 var(--serif); color: var(--print); }
.rooms-grid .app-tile { border-top: 1px solid var(--rule); }
.rooms-grid .tile-inner { display: grid; grid-template-columns: minmax(38px,.3fr) minmax(0,1fr); align-items: center; gap: 7px; }
.rooms-grid .app-visual { background: transparent !important; }
.rooms-grid .app-visual svg { width: min(84%, 70px); }
.rooms-grid .app-copy { display: flex; flex-wrap: wrap; gap: 4px; }
.rooms-grid .app-copy > div { flex: 1 1 100%; }

/* Tool register */
[data-layout="ledger"] .intro { display: flex; justify-content: space-between; padding: 30px 0 35px; }
[data-layout="ledger"] .intro h1 { font-size: var(--heading); }
[data-layout="ledger"] .intro .label { margin-bottom: .6em; }
.register-list table { width: 100%; border-collapse: collapse; font-size: var(--body); table-layout: fixed; }
.register-list thead { background: var(--ink); color: var(--ground); }
.register-list :is(th,td) { text-align: start; padding: 12px clamp(7px, 2vw, 22px); overflow-wrap: anywhere; }
.register-list th:first-child { width: 14%; }
.register-list thead th:nth-child(2) { width: 35%; }
.register-list tbody tr { border-bottom: 1px solid var(--rule); }
.register-list tbody tr:nth-child(even) { background: var(--field); }
.register-list tbody td:first-child { font-variant-numeric: tabular-nums; }
.register-category { display: block; font-weight: 400; color: var(--muted); font-size: var(--small); }
.register-link { display: inline-flex; flex-wrap: wrap; align-items: center; min-height: 44px; column-gap: .25em; }
.register-link:hover { text-decoration: underline; text-underline-offset: 4px; }

/* Alternating diptych */
[data-layout="diptych"] .intro { padding: 43px 0; }
[data-layout="diptych"] .intro h1 { font-family: var(--serif); }
.diptych-list .app-list { display: grid; gap: clamp(18px, 4vw, 58px); }
.diptych-list .tile-inner { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); align-items: stretch; }
.diptych-list .app-visual { aspect-ratio: 2.2; }
.diptych-list .app-tile:nth-child(even) .app-visual { grid-column: 2; grid-row: 1; }
.diptych-list .app-tile:nth-child(even) .app-copy { grid-column: 1; grid-row: 1; }
.diptych-list .app-copy { align-self: center; padding: 14px clamp(10px, 4vw, 60px); display: flex; flex-wrap: wrap; gap: 8px; }
.diptych-list .app-copy > div { flex: 1 1 100%; }
.diptych-list .app-copy h3 { font-family: var(--serif); font-size: var(--heading); }

/* Type posters */
[data-layout="type"] .intro { padding: 42px clamp(14px, 4vw, 58px); margin: 23px 0 28px; background: var(--ink); color: var(--ground); }
[data-layout="type"] .intro :is(.lead,.label) { color: inherit; }
[data-layout="type"] .intro h1 { font-family: var(--serif); }
[data-layout="type"] .intro .action { background: var(--ground); color: var(--ink); }
.type-list .app-list { display: grid; grid-template-columns: 1.23fr .77fr; gap: 22px 15px; }
.type-list .app-tile:nth-child(4n + 2) { margin-top: 36px; }
.type-list .app-tile:nth-child(4n + 3) { margin-inline-start: 12%; }
.type-list .app-visual { display: flex; align-items: end; min-height: clamp(96px, 17vw, 205px); padding: 10px 4%; background: var(--field-strong); }
.type-list .app-visual span { font-family: var(--serif); font-size: clamp(1.4rem, 6vw, 5.75rem); font-weight: 700; line-height: 1.05; letter-spacing: -.04em; overflow-wrap: anywhere; }
.type-list .app-tile:nth-child(3n) .app-visual { background: var(--ink); color: var(--ground); }
.type-list .app-copy { padding-inline: 4px; }

/* Facing pages and specimen cabinet */
.indexed-pane[hidden] { display: none; }
[data-layout="book"] .home { max-width: 1100px; }
[data-layout="book"] .intro { padding: 30px 0; text-align: center; }
[data-layout="book"] .intro :is(.lead,.label) { margin-inline: auto; }
[data-layout="book"] .intro h1 { font-family: var(--serif); }
.book-list .indexed-pane:not([hidden]) { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); border: 1px solid var(--rule); }
.book-list .app-tile { background: var(--field); padding: clamp(9px, 2.5vw, 32px); }
.book-list .app-tile + .app-tile { border-inline-start: 1px solid var(--rule); background: var(--ground); }
.book-list .app-visual { aspect-ratio: 1.65; background: transparent !important; }
.book-list .app-visual svg { width: min(54%, 125px); }
.view-buttons { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.view-buttons button { display: grid; align-content: center; min-height: 48px; min-width: 0; flex: 1 1 145px; padding: 7px 9px; text-align: start; background: var(--ground); border: 1px solid var(--rule); color: var(--ink); font-size: var(--small); cursor: pointer; overflow-wrap: anywhere; }
.book-list .view-buttons { margin: 0 0 12px; }
.view-buttons button span { font-variant-numeric: tabular-nums; }
.view-buttons button[aria-pressed="true"] { background: var(--ink); color: var(--ground); }
.view-buttons button:not([aria-pressed="true"]):hover { background: var(--field); }
[data-layout="cabinet"] .intro { padding: 24px 0 28px; }
[data-layout="cabinet"] .intro h1 { font-size: var(--heading); }
[data-layout="cabinet"] .intro .label { margin-bottom: .5em; }
.cabinet-list .indexed-panes { border: 1px solid var(--rule); padding: clamp(12px, 2vw, 30px); background: var(--field); }
.cabinet-list .tile-inner { display: grid; grid-template-columns: minmax(0,1.23fr) minmax(0,.77fr); align-items: center; gap: 15px; }
.cabinet-list .app-visual { aspect-ratio: 2.1; background: var(--field-strong) !important; }
.cabinet-list .app-visual svg { width: min(38%, 155px); }
.cabinet-list .app-copy h3 { font-size: var(--heading); }
.cabinet-list .view-buttons { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); }

/* Stepped sheets */
[data-layout="stack"] .intro { padding: 38px 0; }
[data-layout="stack"] .intro h1 { font-family: var(--serif); }
.stack-list .app-list { padding-bottom: 15px; }
.stack-list .app-tile { --shift: 0%; position: relative; width: 77%; margin-inline-start: var(--shift); margin-top: -14px; background: var(--ground); border: 1px solid var(--rule); }
.stack-list .app-tile:first-child { margin-top: 0; }
.stack-list .app-tile:nth-child(6n + 2), .stack-list .app-tile:nth-child(6n) { --shift: 8%; }
.stack-list .app-tile:nth-child(6n + 3), .stack-list .app-tile:nth-child(6n + 5) { --shift: 15%; }
.stack-list .app-tile:nth-child(6n + 4) { --shift: 22%; }
.stack-list .app-tile:focus-within { z-index: 1; }
.stack-list .tile-inner { display: grid; grid-template-columns: minmax(65px,.22fr) minmax(0,.78fr); align-items: center; gap: 10px; padding: 16px 16px 29px; }
.stack-list .app-visual { aspect-ratio: 1.2; }
.stack-list .app-visual svg { width: min(67%, 84px); }
.stack-list .app-tile:nth-child(even) { background: var(--field); }

/* Upright spines */
[data-layout="spines"] .intro { padding: 36px 0; }
.spines-list .app-list { display: grid; grid-template-columns: repeat(10,minmax(0,1fr)); gap: 22px 5px; }
.spines-list .tile-inner { display: grid; grid-template-columns: minmax(0,1fr); grid-template-rows: 220px 1fr; }
.spines-list .app-visual { grid-row: 1; grid-column: 1; align-items: end; padding-bottom: 12px; }
.spines-list .app-visual svg { width: min(66%, 55px); }
.spines-list .app-copy { display: block; grid-row: 1 / 3; grid-column: 1; padding: 8px 7px; }
.spines-list .app-number { display: block; text-align: center; }
.spines-list .app-copy h3 { display: grid; place-items: center; margin: 4px auto 0; height: 120px; writing-mode: vertical-rl; font-family: var(--serif); font-size: var(--medium); }
.spines-list .app-copy .latin { display: none; }
.spines-list .app-copy p { margin-top: 83px; }
.spines-list .detail-arrow { display: block; margin-top: 6px; }

@media (max-width: 950px) {
  .spines-list .app-list { grid-template-columns: repeat(5,minmax(0,1fr)); }
}
@media (max-width: 760px) {
  .orbit-map { min-height: 0; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px 18px; padding-bottom: 16px; }
  .orbit-map::before { inset: 24% 17% 0; }
  .orbit-center { position: relative; inset: auto; grid-column: 1 / -1; grid-row: 1; padding: 12px 0 23px; }
  .orbit-map .app-tile { position: relative; inset: auto; width: auto; transform: none; }
  .orbit-map .app-copy { width: fit-content; margin-inline: auto; }
  .rooms-grid { grid-template-columns: 1fr; }
  .workroom:nth-child(n) { margin: 0; }
}
@media (max-width: 640px) {
  .atlas-actions { column-gap: 10px; }
  .book-list .app-copy, .cabinet-list .app-copy { display: block; }
  .book-list .view-buttons { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); }
  .cabinet-list .view-buttons { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .diptych-list .app-visual { aspect-ratio: auto; min-height: 115px; }
  .type-list .app-list { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
  .type-list .app-tile:nth-child(4n + 3) { margin-inline-start: 0; }
  .type-list .app-tile:nth-child(4n + 2) { margin-top: 19px; }
  .type-list .app-copy { display: block; }
  .stack-list .app-tile { width: 84%; margin-inline-start: calc(var(--shift) * .68); }
  .stack-list .tile-inner { padding: 10px 9px 24px; }
  .stack-list .app-copy { display: block; }
  .spines-list .app-list { grid-template-columns: repeat(3,minmax(0,1fr)); }
}
@media (max-width: 365px) {
  .cabinet-list .tile-inner { grid-template-columns: minmax(0,1fr); }
  .cabinet-list .app-visual { aspect-ratio: 2.6; }
}

/* Search desk */
.app-tile[hidden] { display: none; }
[data-layout="finder"] .home { max-width: 1000px; }
[data-layout="finder"] .intro { padding-block: 30px; }
[data-layout="finder"] .intro h1 { font-size: var(--heading); }
[data-layout="finder"] .intro .label { margin-bottom: .5em; }
.finder-desk { border: 1px solid var(--rule); background: var(--field); padding: clamp(12px,3vw,30px); }
.finder-desk label { display: block; font-weight: 650; margin-bottom: 6px; }
.finder-desk input { width: 100%; min-height: 52px; padding: 10px 12px; color: var(--ink); background: var(--ground); border: 1px solid var(--rule); border-radius: 0; font: inherit; }
.finder-desk input::placeholder { color: var(--muted); }
.finder-desk input:focus-visible { outline: 2px solid var(--print); outline-offset: 2px; }
.finder-desk .app-list { margin-top: 12px; }
.finder-desk .app-tile + .app-tile { border-top: 1px solid var(--rule); }
.finder-desk .tile-inner { display: grid; grid-template-columns: 46px minmax(0,1fr); gap: 8px; align-items: center; padding-inline: 8px; }
.finder-desk .app-visual { background: transparent !important; }
.finder-desk .app-visual svg { width: 76%; }
.finder-status { padding: 13px 0; color: var(--muted); }

/* Showcase window */
.showcase-list { padding-top: 25px; }
.showcase-feature { display: grid; grid-template-columns: minmax(0,.68fr) minmax(0,1.32fr); align-items: end; gap: var(--gap); padding: clamp(15px, 3.3vw, 48px); background: var(--field); margin-bottom: 34px; }
.showcase-intro .intro { padding: 0 0 12px; }
.showcase-intro h1 { font-family: var(--serif); }
.showcase-intro .action { display: none; }
.showcase-feature .app-visual { aspect-ratio: 1.72; border: 1px solid var(--rule); background: radial-gradient(ellipse at 40% 28%, var(--field-strong), var(--ground)); }
.showcase-feature .app-visual svg { width: min(44%, 175px); }
.showcase-feature .app-copy { padding-bottom: 0; }
.showcase-catalog { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 0 20px; }
.showcase-catalog .app-tile { border-bottom: 1px solid var(--rule); }
.showcase-catalog .app-visual { display: none; }

/* Side-by-side comparison */
[data-layout="compare"] .home { max-width: 1180px; }
[data-layout="compare"] .intro { padding-block: 30px; }
.compare-choices, .compare-panes { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.compare-choices label { display: grid; min-width: 0; font-size: var(--small); color: var(--muted); }
.compare-choices select { border: 1px solid var(--rule); margin: 3px 0 10px; font-size: var(--body); padding: 0 8px; appearance: auto; }
.compare-panes .app-tile { grid-row: 1; grid-column: 1; background: var(--field); padding: clamp(8px, 2vw, 23px); }
.compare-panes .app-tile[data-slot="1"] { grid-column: 2; }
.compare-panes .app-visual { background: transparent !important; aspect-ratio: 1.8; }
.compare-panes .app-copy { border-top: 1px solid var(--rule); }

/* Receipt roll */
.receipt-roll { position: relative; max-width: 555px; margin: 24px auto 0; padding: 22px clamp(14px,5vw,37px) 28px; background: var(--field); }
.receipt-roll::after { content: ""; position: absolute; inset: auto 0 -9px; height: 10px; background: linear-gradient(135deg,var(--field) 35%,transparent 36%) 0 0 / 14px 14px repeat-x, linear-gradient(225deg,var(--field) 35%,transparent 36%) 0 0 / 14px 14px repeat-x; pointer-events: none; }
.receipt-roll .intro { text-align: center; padding: 16px 0 25px; }
.receipt-roll .intro :is(.label,.lead) { margin-inline: auto; }
.receipt-roll .intro h1 { font-family: var(--serif); font-size: var(--heading); }
.receipt-roll .intro .action { display: none; }
.receipt-roll .section-head { border-block: 1px dashed var(--rule); margin-bottom: 4px; padding-block: 8px; }
.receipt-roll .section-head h2 { font-size: var(--body); }
.receipt-list .app-visual { display: none; }
.receipt-list .app-tile { border-bottom: 1px dotted var(--rule); }
.receipt-list .app-copy { padding-block: 8px; }
.receipt-list .app-copy h3 { font-size: var(--body); }
.receipt-roll .philosophy { border-top-style: dashed; margin-top: 24px; padding: 18px 0 0; display: block; }
.receipt-roll .philosophy h2 { font-size: var(--medium); }
.receipt-roll .philosophy > p { margin-top: 10px; }

/* Contour map */
[data-layout="map"] .intro { padding-block: 26px 30px; }
[data-layout="map"] .intro h1 { font-family: var(--serif); }
.map-field { position: relative; isolation: isolate; display: grid; grid-template-columns: repeat(12,minmax(0,1fr)); align-items: start; gap: 12px; padding: clamp(12px,3vw,42px); background: var(--field); }
.map-lines { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; color: var(--print); opacity: .22; }
.map-region { min-width: 0; grid-column: 1 / 6; grid-row: 1; }
.map-region:nth-of-type(2) { grid-column: 8 / -1; grid-row: 1; padding-top: 70px; }
.map-region:nth-of-type(3) { grid-column: 4 / 10; grid-row: 2; }
.map-region h3 { display: inline-block; padding: 6px 10px; background: var(--ink); color: var(--ground); font-size: var(--small); }
.map-region h3 span { margin-inline-end: .25em; }
.map-region > div { display: flex; flex-wrap: wrap; margin-top: 8px; gap: 8px; }
.map-region .app-tile { flex: 0 1 136px; }
.map-region .tile-inner { padding: 5px 8px; background: var(--ground); }
.map-region .app-visual { background: transparent !important; height: 35px; justify-items: start; }
.map-region .app-visual svg { width: 33px; }
.map-region .app-copy { display: block; padding: 2px 0 6px; }
.map-region .app-copy :is(.app-number,.latin) { display: none; }
.map-region .app-copy h3 { background: none; color: var(--ink); padding: 0; font-size: var(--body); }
.map-region .app-copy p { margin-top: 3px; }

/* Lightbox proof */
[data-layout="proof"] .intro { padding-block: 29px; }
.proof-sheet { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 12px; padding: clamp(12px,2.2vw,25px); background: var(--field); border-block: 6px solid var(--field-strong); }
.proof-tile { min-width: 0; }
.proof-tile > button { min-height: 110px; width: 100%; display: grid; align-content: space-between; gap: 6px; padding: 7px 9px; text-align: start; border: 1px solid var(--rule); background: var(--ground); color: var(--ink); overflow-wrap: anywhere; }
.proof-tile > button:hover { background: var(--field-strong); }
.proof-tile > button span, .proof-tile > p { color: var(--muted); font-size: var(--small); }
.proof-tile > button svg { width: min(48%,64px); margin-inline: auto; color: var(--print); }
.proof-tile > p { margin-top: 5px; }
.proof-detail { display: inline-flex; align-items: center; min-height: 44px; font-size: var(--small); text-decoration: underline; text-underline-offset: 3px; }
.proof-dialog { width: min(90%, 580px); max-height: 85vh; margin: auto; padding: clamp(12px,3vw,32px); background: var(--ground); color: var(--ink); border: 1px solid var(--rule); }
.proof-dialog::backdrop { background: rgba(20,23,26,.73); }
.proof-top { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 12px; }
.proof-top .label { margin: 0; }
.proof-dialog .app-visual { aspect-ratio: 1.55; margin-bottom: 13px; }
.proof-dialog p { margin-top: 8px; color: var(--muted); }

/* Expanding louvers */
[data-layout="louvers"] .intro { padding-block: 30px; }
.louver-units { display: flex; gap: 5px; min-width: 0; }
.louver-unit { min-width: 0; min-height: 260px; display: flex; flex-direction: column; flex: 0 0 clamp(37px,4.4vw,62px); background: var(--field); }
.louver-unit:nth-child(even) { background: var(--field-strong); }
.louver-unit[data-expanded="true"] { flex: 1 1 240px; }
.louver-unit > button { display: flex; align-items: center; gap: 11px; padding: 9px 5px; min-height: 44px; width: 100%; flex: 1 1 auto; border: 0; background: transparent; color: var(--ink); text-align: start; }
.louver-unit > button:hover { background: var(--field-strong); }
.louver-unit > button span { color: var(--muted); font-size: var(--small); }
.louver-unit:not([data-expanded="true"]) > button { flex-direction: column; }
.louver-unit:not([data-expanded="true"]) > button strong { writing-mode: vertical-rl; }
.louver-unit[data-expanded="true"] > button { flex: 0 0 auto; padding-inline: 10px; border-bottom: 1px solid var(--rule); }
.louver-unit[data-expanded="true"] .app-tile { flex: 1 1 auto; padding: 10px; }
.louver-unit .app-visual { background: transparent !important; min-height: 127px; }
.louver-unit .app-visual svg { width: min(56%,110px); }
.louver-unit .app-copy { display: block; }
.louver-unit .app-copy .app-number { display: none; }

/* Four-step workflow */
[data-layout="workflow"] .intro { padding-block: 32px; }
.workflow-steps { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); list-style: none; padding: 0; margin: 0; gap: 12px; }
.workflow-step { min-width: 0; }
.step-marker { position: relative; display: grid; align-content: center; gap: 2px; min-height: 66px; padding: 7px 17px 7px 11px; margin-bottom: 8px; background: var(--ink); color: var(--ground); }
.workflow-step:not(:last-child) .step-marker { clip-path: polygon(0 0,calc(100% - 12px) 0,100% 50%,calc(100% - 12px) 100%,0 100%); }
.step-marker span { font-size: var(--small); }
.workflow-step .app-tile { border-bottom: 1px solid var(--rule); }
.workflow-step .tile-inner { display: grid; grid-template-columns: minmax(31px, .27fr) minmax(0,1fr); align-items: center; gap: 8px; }
.workflow-step .app-visual { background: transparent !important; }
.workflow-step .app-visual svg { width: min(88%,50px); }
.workflow-step .app-copy { display: block; }
.workflow-step .app-copy .app-number { display: none; }

/* Nested frames */
[data-layout="frames"] .home { max-width: 1080px; }
[data-layout="frames"] .intro { padding-block: 32px; }
[data-layout="frames"] .intro h1 { font-family: var(--serif); }
.nested-frame { padding: 4px clamp(5px,2vw,24px); border: 1px solid var(--rule); background: var(--field); }
.nested-frame.nested-inset { background: var(--ground); }
.nested-frame .tile-inner { display: grid; grid-template-columns: minmax(32px,.18fr) minmax(0,.82fr); align-items: center; gap: 8px; max-width: 520px; margin-inline: auto; }
.nested-frame .app-visual { background: transparent !important; }
.nested-frame .app-visual svg { width: min(100%,51px); }
.nested-frame .app-copy { padding-block: 7px; }

/* Annotated essay */
.notes-essay { max-width: 710px; margin-inline: auto; padding: clamp(24px, 5vw, 67px) 0 32px; }
.notes-essay h1 { font-family: var(--serif); }
.essay-body { display: grid; gap: 15px; margin-top: 24px; }
.essay-body p { font-size: var(--medium); }
.note-marks { display: inline-flex; flex-wrap: wrap; vertical-align: middle; margin-inline-start: .25em; gap: 2px; }
.note-marks a { display: grid; place-items: center; min-width: 33px; min-height: 35px; color: var(--print); font: 650 var(--small)/1 var(--sans); text-decoration: underline; text-underline-offset: 3px; }
.notes-index { border-top: 3px double var(--rule); }
.notes-index .section-head { border-top: 0; }
.notes-index .app-list { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0 var(--gap); }
.notes-index .app-tile { border-top: 1px solid var(--rule); }
.notes-index .app-visual { display: none; }
.notes-index .app-tile:target, .notes-index .app-tile:focus { background: var(--field); }

@media (max-width: 900px) {
  .louver-units { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); }
  .louver-unit { min-height: 0; }
  .louver-unit[data-expanded="true"] { grid-column: 1 / -1; }
  .louver-unit:not([data-expanded="true"]) > button { flex-direction: row; flex-wrap: wrap; padding-inline: 7px; gap: 5px; }
  .louver-unit:not([data-expanded="true"]) > button strong { writing-mode: horizontal-tb; overflow-wrap: anywhere; }
}
@media (max-width: 640px) {
  .showcase-feature { grid-template-columns: minmax(0,1fr); }
  .showcase-catalog { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0 8px; }
  .showcase-catalog .app-copy, .compare-panes .app-copy { display: block; }
  .map-field { grid-template-columns: minmax(0,1fr); gap: 14px; }
  .map-region:nth-of-type(n) { grid-column: 1; grid-row: auto; padding: 0; }
  .map-region:nth-of-type(2) { margin-inline-start: 8%; }
  .map-region:nth-of-type(3) { margin-inline-start: 4%; }
  .map-region .app-tile { flex: 1 1 100px; max-width: 155px; }
  .proof-sheet { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .workflow-steps { grid-template-columns: 1fr; }
  .workflow-step { display: grid; grid-template-columns: minmax(84px,.30fr) minmax(0,1fr); gap: 9px; }
  .step-marker { align-content: start; min-height: 48px; }
  .workflow-step:not(:last-child) .step-marker { clip-path: none; }
  .step-marker h3 { font-size: var(--body); }
  .notes-index .app-list { grid-template-columns: 1fr; }
  .note-marks a { min-height: 40px; }
}

/* Volume navigation */
.volume-index { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 1px; margin-block: 0 34px; background: var(--rule); border: 1px solid var(--rule); }
.volume-index a { min-width: 0; display: flex; flex-wrap: wrap; align-items: center; align-content: center; gap: 1px 8px; padding: 8px 10px; min-height: 48px; background: var(--ground); overflow-wrap: anywhere; font-size: var(--small); }
.volume-index a:hover { background: var(--field); }
.volume-index a span { color: var(--muted); font-variant-numeric: tabular-nums; }

/* Page partitions */
.plan-home { --plan-gap: clamp(6px, 1.4vw, 18px); --plan-pad: clamp(9px, 2vw, 28px); }
.plan-heading { display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: baseline; gap: 7px 15px; margin-block: 16px var(--plan-gap); padding: 11px 0; border-block: 1px solid var(--rule); overflow-wrap: anywhere; }
.plan-heading > span { color: var(--muted); font-size: var(--small); font-variant-numeric: tabular-nums; }
.plan-heading strong { font-size: var(--medium); line-height: 1.24; }
.plan-page :is(.plan-branch,.plan-slot,.plan-void) { min-width: 0; min-height: 0; }
.plan-page :is(.plan-branch,.plan-slot) { container-type: inline-size; }
.plan-page :is(.plan-row,.plan-column) { display: grid; min-width: 0; min-height: 100%; gap: var(--plan-gap); }
.plan-page .plan-row { grid-template-columns: var(--tracks); }
.plan-page .plan-column { grid-template-columns: minmax(0,1fr); }
.plan-page .plan-void { min-height: 24px; }
.plan-slot .intro { padding: var(--plan-pad); }
.plan-slot .intro .label { margin-bottom: .65em; }
.plan-slot h1 { font-family: var(--serif); font-size: clamp(1.8rem, 7.5cqi, 4.2rem); }
.plan-slot .intro .lead { margin-top: 13px; }
.plan-slot .intro .action { margin-top: 14px; }
.plan-slot .philosophy { display: block; margin: 0; min-height: 100%; padding: var(--plan-pad); border: 0; background: var(--field); }
.plan-slot .philosophy h2 { font-family: var(--serif); font-size: var(--medium); }
.plan-slot .philosophy > p { margin-top: 10px; }
.plan-slot .app-tile { height: 100%; }
.plan-slot .tile-inner { display: grid; grid-template-rows: minmax(54px,1fr) auto; }
.plan-slot .app-visual { min-height: clamp(64px, 38cqi, 210px); }
.plan-slot .app-visual svg { width: min(55%, 130px); }
.plan-slot .app-copy { gap: 7px; padding: 8px var(--plan-pad) 10px; }
.plan-slot .app-copy h3 { font-size: var(--body); }
.plan-slot .app-copy p { margin-top: 3px; }
.plan-slot .app-copy .latin { white-space: normal; }
.plan-neighbors { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; border-top: 1px solid var(--rule); margin-top: clamp(23px,5vw,60px); }
.plan-neighbors a { min-width: 0; padding: 12px 0; min-height: 44px; font-size: var(--small); overflow-wrap: anywhere; }
.plan-neighbors a + a { text-align: end; }
.plan-neighbors a span { margin-inline: .25em; }
.plan-neighbors a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* Architectural forms */
.plan-home[data-family="structure"] { --plan-gap: 1px; }
[data-family="structure"] .plan-page { border: 1px solid var(--rule); background: var(--rule); }
[data-family="structure"] .plan-slot { background: var(--ground); }
[data-family="structure"] .plan-intro { background: var(--field-strong); }
[data-family="structure"] .plan-void { background: var(--field); }
[data-family="structure"] .app-visual { background: transparent !important; }
[data-family="structure"] .app-copy { border-top: 1px solid var(--rule); }

/* Editorial spreads */
[data-family="editorial"] .plan-intro { border-block: 3px double var(--rule); }
[data-family="editorial"] .plan-slot .intro { padding-inline: 0; }
[data-family="editorial"] .plan-work { border-bottom: 1px solid var(--rule); }
[data-family="editorial"] .app-copy { padding-inline: 0; }
[data-family="editorial"] .app-copy h3 { font-family: var(--serif); font-size: var(--medium); }
[data-family="editorial"] .plan-essay .philosophy { border-inline-start: 3px solid var(--print); }

/* Object displays */
[data-family="objects"] .plan-page { padding-block: 12px; }
[data-family="objects"] .plan-intro .intro { padding-inline: 0; }
[data-family="objects"] .app-visual { background: radial-gradient(ellipse at 42% 25%, var(--field-strong), var(--field)) !important; }
[data-family="objects"] .app-visual svg { width: min(51%, 156px); }
[data-family="objects"] .app-copy { padding-inline: 0; }
[data-family="objects"] .plan-feature .app-visual { min-height: clamp(100px, 52cqi, 340px); }
[data-family="objects"] .plan-essay .philosophy { background: transparent; border-top: 1px solid var(--rule); padding-inline: 0; }

/* Exhibit labels */
[data-family="labels"] .plan-page { padding-block: 13px; }
[data-family="labels"] .plan-intro .intro { background: var(--ink); color: var(--ground); }
[data-family="labels"] .plan-intro :is(.label,.lead) { color: inherit; }
[data-family="labels"] .plan-intro .action { background: var(--ground); color: var(--ink); }
[data-family="labels"] .plan-work { border-top: 1px solid var(--rule); }
[data-family="labels"] .tile-inner { grid-template-rows: auto; grid-template-columns: minmax(28px, .25fr) minmax(0,.75fr); align-items: start; }
[data-family="labels"] .app-visual { min-height: 48px; background: transparent !important; }
[data-family="labels"] .app-visual svg { width: min(90%, 58px); }
[data-family="labels"] .app-copy { padding-inline: 3px; }

/* Signal paths */
[data-family="signal"] .plan-page { padding: var(--plan-gap); background: radial-gradient(circle, var(--rule) 1px, transparent 1.3px) 0 0 / 14px 14px; }
[data-family="signal"] .plan-slot { background: var(--ground); }
[data-family="signal"] .plan-intro { border-inline-start: 2px solid var(--print); }
[data-family="signal"] .plan-work { border: 1px solid var(--rule); }
[data-family="signal"] .app-visual { background: transparent !important; }
[data-family="signal"] .plan-feature { border-color: var(--print); }
[data-family="signal"] .app-copy { border-top: 1px dotted var(--rule); }
[data-family="signal"] .app-number { font-weight: 700; color: var(--print); }

/* Desktop panes */
[data-family="panes"] .plan-page { padding: var(--plan-gap); background: var(--field); }
[data-family="panes"] .plan-slot { border: 1px solid var(--rule); background: var(--ground); }
[data-family="panes"] .plan-work::before { content: ""; display: block; height: 8px; margin: 7px 9px 0; background: radial-gradient(circle, var(--muted) 1.25px, transparent 1.6px) 0 0 / 8px 8px repeat-x; width: 24px; }
[data-family="panes"] .plan-work .app-tile { height: calc(100% - 15px); }
[data-family="panes"] .app-visual { margin: 6px; background: var(--field) !important; }

/* Cut-paper posters */
[data-family="cutout"] .plan-intro { background: var(--ink); color: var(--ground); }
[data-family="cutout"] .plan-intro :is(.label,.lead) { color: inherit; }
[data-family="cutout"] .plan-intro .action { background: var(--ground); color: var(--ink); }
[data-family="cutout"] .plan-essay .philosophy { border-block: 1px solid var(--rule); }
[data-family="cutout"] .app-visual { position: relative; isolation: isolate; display: flex; align-items: end; padding: var(--plan-pad); background: var(--field) !important; }
[data-family="cutout"] .app-visual::before { content: ""; position: absolute; inset: 0; clip-path: polygon(100% 0, 100% 100%, 25% 100%); background: var(--field-strong); z-index: -1; }
[data-family="cutout"] .plan-work[data-side="alternate"] .app-visual::before { transform: scaleX(-1); }
[data-family="cutout"] .app-visual span { font: 650 clamp(1.15rem, 12cqi, 4.9rem)/1 var(--serif); overflow-wrap: anywhere; }
[data-family="cutout"] .app-copy { padding-inline: 0; }

/* Folded archives */
[data-family="archive"] .plan-page { border-block: 3px double var(--rule); padding-block: var(--plan-gap); }
[data-family="archive"] .plan-work { background: var(--field); }
[data-family="archive"] .plan-intro .intro { padding-inline: 0; }
.plan-file summary { min-height: 48px; padding: 8px 12px; cursor: pointer; font-size: var(--small); overflow-wrap: anywhere; }
.plan-file summary span { margin-inline: .25em .5em; color: var(--muted); }
.plan-file[open] summary { background: var(--field-strong); }
.plan-file .app-visual { background: transparent !important; min-height: 66px; }
.plan-file .app-copy h3 { display: none; }

/* Cinema storyboards */
[data-family="cinema"] .plan-intro .intro { padding-inline: 0; }
[data-family="cinema"] .plan-work .app-visual { aspect-ratio: 2.35; border: 1px solid var(--rule); min-height: 56px; background: radial-gradient(ellipse at 42% 25%, var(--field-strong), var(--field)) !important; }
[data-family="cinema"] .plan-work .tile-inner { display: block; }
[data-family="cinema"] .app-visual svg { width: min(38%, 105px); }
[data-family="cinema"] .plan-feature .app-visual svg { width: min(38%, 152px); }
[data-family="cinema"] .app-copy { padding-inline: 0; }

/* Marginalia */
[data-family="marginal"] .plan-intro .intro { padding-inline: 0; }
[data-family="marginal"] .plan-essay .philosophy { border-inline-start: 1px solid var(--print); background: transparent; }
[data-family="marginal"] .plan-work { border-top: 1px solid var(--rule); }
[data-family="marginal"] .plan-work:not(.plan-feature) .app-visual { display: none; }
[data-family="marginal"] .plan-work:not(.plan-feature) .tile-inner { display: block; }
[data-family="marginal"] .app-copy { padding-inline: 0; }
[data-family="marginal"] .app-copy h3 { font-family: var(--serif); }

@container (max-width: 700px) {
  .plan-page .plan-row[data-density="deep"] { grid-template-columns: minmax(0,1fr); }
}
@container (max-width: 520px) {
  .plan-page .plan-row[data-density="many"] { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .plan-page .plan-row:is([data-density="few"],[data-density="pocket"]) { grid-template-columns: repeat(var(--track-count),minmax(0,1fr)); }
  .plan-page .plan-row[data-density="prose"] { grid-template-columns: minmax(0,1fr); }
  .plan-page .plan-row .plan-void { min-height: 0; }
  .plan-page .plan-row:not([data-density="few"]) > .plan-void { display: none; }
}
@container (max-width: 210px) {
  .plan-slot .app-copy { display: block; padding: 7px 5px; }
  .plan-slot .app-number { display: block; }
  .plan-slot .app-visual { min-height: 45px; }
  .plan-slot .intro { padding-inline: 8px; }
  .plan-slot .intro .action { gap: 6px; padding-inline: 6px; overflow-wrap: anywhere; }
  [data-family="labels"] .tile-inner { grid-template-columns: minmax(0,1fr); }
  [data-family="labels"] .app-visual { justify-items: start; min-height: 32px; }
  [data-family="labels"] .app-visual svg { width: min(62%,40px); }
}
@media (max-width: 640px) {
  .volume-index { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .plan-heading { grid-template-columns: minmax(0,1fr) auto; }
  .plan-heading strong { grid-row: 2; grid-column: 1 / -1; }
  .plan-heading .plan-count { grid-row: 1; grid-column: 2; }
  .plan-home { --plan-pad: 10px; }
}
@media (max-width: 365px) {
  .plan-heading { grid-template-columns: minmax(0,1fr); }
  .plan-heading strong, .plan-heading .plan-count { grid-row: auto; grid-column: auto; }
}