/* Plinth 2.4.0 — base.css (theme stylesheet, ahdnet.net) */
:root {
  --color-base-background: #f7f7f4;
  --color-base-text: #121212;
  --color-base-muted: #5b5b57;
  --color-base-rule: #121212;
  --color-base-hairline: #d6d6d0;
  --color-base-accent: #1747d9;
  --color-footer-background: #121212;
  --color-footer-text: #ecece6;
  --font-body-family: "Instrument Sans", "Helvetica Neue", Helvetica, sans-serif;
  --font-mono-family: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --page-width: 1320px;
  --page-gutter: 32px;
  --grid-gap: 24px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 40px;
  --space-5: 64px;
  --space-6: 104px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--color-base-background);
  color: var(--color-base-text);
  font-family: var(--font-body-family);
  font-size: 17px;
  line-height: 1.55;
  font-feature-settings: "ss01", "tnum";
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--color-base-accent); }
.mono { font-family: var(--font-mono-family); font-size: 0.78rem; letter-spacing: 0.02em; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-to-content-link:focus { position: fixed !important; top: 8px; left: 8px; width: auto; height: auto; clip: auto; padding: 8px 14px; background: var(--color-base-text); color: var(--color-base-background); z-index: 10; }
.page-width { max-width: var(--page-width); margin: 0 auto; padding: 0 var(--page-gutter); }
.grid-12 { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--grid-gap); }
.shopify-section { display: block; }

/* header — three columns, numbered stacked index, not sticky */
.plinth-header { padding-top: var(--space-4); }
.plinth-header__grid { align-items: start; padding-bottom: var(--space-3); border-bottom: 2px solid var(--color-base-rule); }
.plinth-header__brand { grid-column: 1 / span 3; }
.plinth-header__wordmark { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.45rem; letter-spacing: -0.02em; text-decoration: none; }
.plinth-header__square { width: 14px; height: 14px; background: var(--color-base-accent); display: inline-block; }
.plinth-header__line { grid-column: 4 / span 4; margin: 4px 0 0; color: var(--color-base-muted); font-size: 0.95rem; max-width: 30ch; }
.plinth-header__nav { grid-column: 8 / span 5; }
.list-menu { list-style: none; margin: 0; padding: 0; }
.list-menu--index { display: grid; grid-template-columns: 1fr 1fr; column-gap: var(--grid-gap); }
.list-menu__item a { display: flex; gap: 12px; padding: 5px 0; text-decoration: none; border-top: 1px solid var(--color-base-hairline); font-weight: 500; }
.list-menu__num { color: var(--color-base-muted); min-width: 2ch; padding-top: 3px; }
.list-menu__item--active a { color: var(--color-base-accent); }
.list-menu__item a:hover .list-menu__num, .list-menu__item--active .list-menu__num { color: var(--color-base-accent); }
.menu-drawer-container { display: none; }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: var(--space-2) 0 0; padding: 0; color: var(--color-base-muted); }
.breadcrumbs li + li::before { content: "/"; margin-right: 6px; }
.breadcrumbs a { text-decoration: none; }

/* typography */
h1, h2, h3 { font-weight: 600; letter-spacing: -0.02em; line-height: 1.12; margin: 0; }
.display-1 { font-size: clamp(2.6rem, 6.2vw, 5.6rem); font-weight: 600; letter-spacing: -0.035em; line-height: 0.98; }
.display-2 { font-size: clamp(2rem, 4vw, 3.4rem); letter-spacing: -0.03em; }
.label { display: block; font-family: var(--font-mono-family); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-base-muted); margin-bottom: var(--space-2); }
.lede { font-size: 1.3rem; line-height: 1.45; max-width: 46ch; }

/* index hero (text-first, one visual) */
.index-hero { padding-top: var(--space-5); padding-bottom: var(--space-5); }
.index-hero__grid { row-gap: var(--space-4); }
.index-hero__text { grid-column: 1 / span 7; }
.index-hero__text .lede { margin: var(--space-3) 0 var(--space-4); }
.index-hero__figure { grid-column: 9 / span 4; margin: 0; }
.index-hero__figure img { filter: grayscale(1) contrast(1.05); aspect-ratio: 3 / 4; object-fit: cover; width: 100%; transition: filter .6s ease; }
.index-hero__figure:hover img { filter: none; }
.index-hero__figure figcaption { margin-top: var(--space-1); color: var(--color-base-muted); }
.button-link { display: inline-flex; align-items: center; gap: 14px; font-weight: 600; text-decoration: none; padding: 12px 0; border-bottom: 2px solid currentColor; }
.button-link::after { content: "\2192"; transition: transform .25s ease; }
.button-link:hover::after { transform: translateX(6px); }

/* generic section frame with rule + number */
.rule-section { padding-bottom: var(--space-5); }
.rule-section::before { content: ""; display: block; height: 2px; background: var(--color-base-rule); margin-bottom: var(--space-3); }
.rule-section__head { margin-bottom: var(--space-4); align-items: baseline; }
.rule-section__num { grid-column: 1 / span 1; color: var(--color-base-accent); }
.rule-section__title { grid-column: 2 / span 6; font-size: 1.9rem; }
.rule-section__aside { grid-column: 9 / span 4; color: var(--color-base-muted); margin: 0; font-size: 0.95rem; }

/* need index (collection-list) */
.need-index { list-style: none; margin: 0; padding: 0; }
.need-index__row { border-top: 1px solid var(--color-base-hairline); padding: var(--space-2) 0; align-items: baseline; }
.need-index__row:last-child { border-bottom: 1px solid var(--color-base-hairline); }
.need-index__dept { grid-column: 2 / span 3; font-weight: 600; font-size: 1.15rem; }
.need-index__links { grid-column: 5 / span 8; display: flex; flex-wrap: wrap; gap: 4px 28px; margin: 0; padding: 0; list-style: none; }
.need-index__links a { text-decoration: none; }
.need-index__links a:hover { text-decoration: underline; }

/* principles (multicolumn) */
.multicolumn-list { list-style: none; margin: 0; padding: 0; row-gap: var(--space-4); }
.multicolumn-card { grid-column: span 3; border-left: 1px solid var(--color-base-rule); padding-left: var(--space-2); }
.multicolumn-card h3 { font-size: 1.05rem; margin-bottom: var(--space-1); }
.multicolumn-card p { margin: 0; color: var(--color-base-muted); font-size: 0.95rem; }

/* venues table (home) */
.venue-table { width: 100%; border-collapse: collapse; }
.venue-table th { text-align: left; font-family: var(--font-mono-family); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-base-muted); font-weight: 500; padding: 0 12px 10px 0; border-bottom: 1px solid var(--color-base-rule); }
.venue-table td { padding: 14px 12px 14px 0; border-bottom: 1px solid var(--color-base-hairline); vertical-align: top; }
.venue-table td:first-child { font-weight: 600; }
.venue-table a { text-decoration: none; }
.venue-table tr:hover td { background: #efefea; }

/* glossary strip */
.term-row { row-gap: var(--space-3); }
.term { grid-column: span 4; margin: 0; }
.term dt { font-weight: 600; margin-bottom: 4px; }
.term dd { margin: 0; color: var(--color-base-muted); }

/* main page template: meta column + measure */
.main-page { padding-top: var(--space-5); padding-bottom: var(--space-6); }
.main-page__head { margin-bottom: var(--space-5); row-gap: var(--space-3); }
.main-page__head .label { grid-column: 1 / span 3; }
.main-page__title { grid-column: 4 / span 9; font-size: clamp(2.2rem, 4.6vw, 4rem); letter-spacing: -0.035em; }
.main-page__dek { grid-column: 4 / span 7; font-size: 1.25rem; line-height: 1.45; color: var(--color-base-muted); margin: 0; }
.main-page__body { row-gap: var(--space-4); }
.main-page__meta { grid-column: 1 / span 3; font-size: 0.92rem; }
.main-page__meta-inner { position: sticky; top: 24px; border-top: 1px solid var(--color-base-rule); padding-top: var(--space-2); }
.main-page__meta h2 { font-family: var(--font-mono-family); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; font-weight: 500; color: var(--color-base-muted); margin: 0 0 var(--space-1); }
.toc-list { list-style: none; margin: 0 0 var(--space-3); padding: 0; }
.toc-list li { padding: 3px 0; }
.toc-list a { text-decoration: none; }
.facts { margin: 0 0 var(--space-3); }
.facts div { border-bottom: 1px solid var(--color-base-hairline); padding: 6px 0; }
.facts dt { font-family: var(--font-mono-family); font-size: 0.72rem; text-transform: uppercase; color: var(--color-base-muted); }
.facts dd { margin: 0; }
.main-page__content { grid-column: 4 / span 7; }
.main-page__figure { grid-column: 4 / span 9; margin: 0; }
.main-page__figure img { width: 100%; max-height: 640px; object-fit: cover; }
.main-page__figure figcaption, .rte figure figcaption { margin-top: var(--space-1); color: var(--color-base-muted); font-family: var(--font-mono-family); font-size: 0.75rem; }
.rte { font-size: 1.07rem; }
.rte > *:first-child { margin-top: 0; }
.rte h2 { font-size: 1.55rem; margin: var(--space-5) 0 var(--space-2); padding-top: var(--space-2); border-top: 1px solid var(--color-base-hairline); scroll-margin-top: 24px; }
.rte h3 { font-size: 1.15rem; margin: var(--space-4) 0 var(--space-1); }
.rte p, .rte ul, .rte ol { margin: 0 0 1.1em; max-width: 66ch; }
.rte li { margin-bottom: 0.4em; }
.rte figure { margin: var(--space-4) 0; }
.rte figure img { max-height: 600px; width: auto; max-width: 100%; }
.rte blockquote { margin: var(--space-4) 0; padding-left: var(--space-3); border-left: 3px solid var(--color-base-accent); }
.rte .note-box { border: 1px solid var(--color-base-rule); padding: var(--space-2) var(--space-3); margin: var(--space-4) 0; max-width: 66ch; }
.rte .note-box p:last-child { margin-bottom: 0; }
.rte dl dt { font-weight: 600; margin-top: var(--space-2); }
.rte dl dd { margin: 2px 0 0; max-width: 66ch; }
.main-page__body--split .main-page__meta { grid-row: 1 / span 3; }
.main-page__body--split .main-page__figure { grid-row: 1; }
.main-page__body--split .main-page__content { grid-row: 2; }
.main-page__body--split .page-related { grid-row: 3; }
.main-page__body--split.main-page__body--no-figure .main-page__content { grid-row: 1; }
.main-page__body--split.main-page__body--no-figure .page-related { grid-row: 2; }
.page-related { grid-column: 4 / span 9; border-top: 2px solid var(--color-base-rule); padding-top: var(--space-2); margin-top: var(--space-4); }
.page-related ul { list-style: none; padding: 0; margin: var(--space-2) 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-2) var(--grid-gap); }
.page-related a { text-decoration: none; font-weight: 500; }

/* collection (extras hub): text index */
.collection-index__group { padding: var(--space-3) 0 var(--space-4); border-top: 2px solid var(--color-base-rule); align-items: start; scroll-margin-top: 16px; }
.collection-index__label { grid-column: 1 / span 3; }
.collection-index__label h2 { font-size: 1.4rem; }
.collection-index__label p { color: var(--color-base-muted); font-size: 0.92rem; margin: var(--space-1) 0 0; }
.collection-index__items { grid-column: 4 / span 9; list-style: none; padding: 0; margin: 0; }
.collection-index__items li { border-bottom: 1px solid var(--color-base-hairline); }
.collection-index__items a { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr) 2ch; gap: var(--grid-gap); padding: 14px 0; text-decoration: none; }
.collection-index__items a span:first-child { font-weight: 600; }
.collection-index__items a span:nth-child(2) { color: var(--color-base-muted); font-size: 0.95rem; }
.collection-index__items a::after { content: "\2192"; }

/* locations hub: photo grid */
.location-grid { list-style: none; margin: 0; padding: 0; row-gap: var(--space-5); }
.location-grid__item { grid-column: span 6; }
.location-grid__item a { text-decoration: none; display: block; }
.location-grid__item img { aspect-ratio: 16 / 10; object-fit: cover; width: 100%; filter: grayscale(1); transition: filter .5s ease; }
.location-grid__item a:hover img { filter: none; }
.location-grid__meta { display: flex; gap: var(--space-2); align-items: baseline; border-top: 1px solid var(--color-base-rule); margin-top: var(--space-2); padding-top: var(--space-1); }
.location-grid__meta h2 { font-size: 1.35rem; }
.location-grid__item p { margin: 6px 0 0; color: var(--color-base-muted); max-width: 52ch; }

/* contact form */
.contact-form { max-width: 620px; }
.field { margin-bottom: var(--space-3); }
.field label { display: block; font-family: var(--font-mono-family); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 6px; }
.field input, .field textarea, .field select, .search-form input { width: 100%; font: inherit; padding: 12px 0; border: 0; border-bottom: 1px solid var(--color-base-rule); background: transparent; color: inherit; border-radius: 0; }
.field input:focus, .field textarea:focus, .search-form input:focus { outline: none; border-bottom: 2px solid var(--color-base-accent); }
.button { font: inherit; font-weight: 600; background: var(--color-base-text); color: var(--color-base-background); border: 0; padding: 14px 26px; cursor: pointer; border-radius: 0; }
.button:hover { background: var(--color-base-accent); }
.form-status { margin-top: var(--space-2); font-weight: 500; }

/* search */
.search-form { display: flex; gap: var(--space-2); align-items: end; max-width: 720px; margin-bottom: var(--space-4); }
.search-results { list-style: none; padding: 0; margin: 0; }
.search-results li { border-top: 1px solid var(--color-base-hairline); padding: var(--space-2) 0; }
.search-results a { font-weight: 600; font-size: 1.15rem; text-decoration: none; }
.search-results p { margin: 4px 0 0; color: var(--color-base-muted); max-width: 70ch; }
.search-results mark { background: #dfe6fb; color: inherit; }
.search-empty { border: 1px solid var(--color-base-rule); padding: var(--space-3); max-width: 720px; }

/* archive + sitemap tables */
.ledger { width: 100%; border-collapse: collapse; }
.ledger th { text-align: left; font-family: var(--font-mono-family); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-base-muted); font-weight: 500; padding: 0 16px 10px 0; border-bottom: 1px solid var(--color-base-rule); }
.ledger td { padding: 12px 16px 12px 0; border-bottom: 1px solid var(--color-base-hairline); vertical-align: top; }
.ledger td.mono { white-space: nowrap; }
.ledger a { text-decoration: none; font-weight: 600; }
.sitemap-cols { row-gap: var(--space-4); }
.sitemap-col { grid-column: span 4; }
.sitemap-col h2 { font-size: 1.1rem; border-top: 2px solid var(--color-base-rule); padding-top: var(--space-1); margin-bottom: var(--space-1); }
.sitemap-col ul { list-style: none; margin: 0; padding: 0; }
.sitemap-col li { padding: 4px 0; border-bottom: 1px solid var(--color-base-hairline); }
.sitemap-col a { text-decoration: none; }
.credits-list td:nth-child(2) { max-width: 260px; }

/* footer — dark end-band with giant wordmark */
.plinth-footer { background: var(--color-footer-background); color: var(--color-footer-text); margin-top: var(--space-6); padding-top: var(--space-5); overflow: hidden; }
.plinth-footer a { color: inherit; text-decoration: none; }
.plinth-footer a:hover { color: #9fb5ff; }
.plinth-footer__top { row-gap: var(--space-4); }
.footer-block { grid-column: span 2; }
.footer-block--notice { grid-column: 1 / span 5; padding-right: var(--space-4); }
.footer-block--notice p { margin: 0; font-size: 0.95rem; line-height: 1.6; color: #c9c9c2; }
.footer-block__heading { font-weight: 500; text-transform: uppercase; letter-spacing: 0.08em; color: #8e8e88; margin-bottom: var(--space-2); }
.footer-block__list { list-style: none; margin: 0; padding: 0; font-size: 0.95rem; }
.footer-block__list li { padding: 3px 0; }
.footer-block:nth-child(3) { grid-column: span 3; }
.plinth-footer__wordmark { font-size: clamp(5rem, 19vw, 17rem); font-weight: 700; letter-spacing: -0.06em; line-height: 0.8; margin: var(--space-5) 0 0; color: #2a2a28; user-select: none; }
.plinth-footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-1) var(--space-3); border-top: 1px solid #3a3a37; padding: var(--space-2) 0 var(--space-3); color: #8e8e88; }

/* responsive */
@media (max-width: 989px) {
  :root { --page-gutter: 20px; --grid-gap: 16px; }
  .plinth-header__line { display: none; }
  .plinth-header__brand { grid-column: 1 / span 8; }
  .plinth-header__nav { display: none; }
  .menu-drawer-container { display: block; grid-column: 9 / span 4; justify-self: end; position: relative; }
  .menu-drawer-container summary { list-style: none; cursor: pointer; border: 1px solid var(--color-base-rule); padding: 6px 12px; }
  .menu-drawer-container summary::-webkit-details-marker { display: none; }
  .menu-drawer { position: absolute; right: 0; top: calc(100% + 8px); width: min(300px, 86vw); background: var(--color-base-background); border: 1px solid var(--color-base-rule); padding: var(--space-1) var(--space-2); z-index: 5; }
  .menu-drawer__menu-item { display: flex; gap: 12px; padding: 9px 0; text-decoration: none; border-bottom: 1px solid var(--color-base-hairline); }
  .index-hero__text, .index-hero__figure, .rule-section__title, .rule-section__aside, .main-page__head .label, .main-page__title, .main-page__dek, .main-page__meta, .main-page__content, .main-page__figure, .page-related, .collection-index__label, .collection-index__items, .need-index__dept, .need-index__links { grid-column: 1 / -1; }
  .index-hero__figure { max-width: 420px; }
  .rule-section__num { grid-column: 1 / -1; }
  .multicolumn-card { grid-column: span 6; }
  .term { grid-column: 1 / -1; }
  .location-grid__item { grid-column: 1 / -1; }
  .sitemap-col { grid-column: span 6; }
  .footer-block, .footer-block:nth-child(3) { grid-column: span 6; }
  .footer-block--notice { grid-column: 1 / -1; padding-right: 0; }
  .main-page__meta-inner { position: static; }
  .main-page__body--split > * { grid-row: auto !important; }
  .page-related ul { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .multicolumn-card, .sitemap-col, .footer-block, .footer-block:nth-child(3) { grid-column: 1 / -1; }
  .venue-table .venue-table__type { display: none; }
  .collection-index__items a { grid-template-columns: minmax(0, 1fr) 2ch; }
  .collection-index__items a span:nth-child(2) { display: none; }
  .search-form { flex-direction: column; align-items: stretch; }
  .ledger .ledger__kicker { display: none; }
}
@media print {
  .plinth-header__nav, .menu-drawer-container, .plinth-footer__wordmark, .breadcrumbs { display: none; }
  .plinth-footer { background: none; color: #000; }
}