:root {
    color-scheme: light dark;
    --page: #f4f5f8;
    --surface: #ffffff;
    --surface-soft: #edf0f6;
    --ink: #151923;
    --muted: #697181;
    --line: #cfd4dd;
    --accent: #4458e8;
    --accent-ink: #ffffff;
    --feature: #17245b;
    --feature-ink: #f7f8ff;
    --signal: #ff7557;
    --signal-ink: #24130f;
    --focus: #153ee8;
    --radius: .85rem;
}

* { box-sizing: border-box; }
html { min-width: 0; background: var(--page); color: var(--ink); }
body { margin: 0; min-width: 0; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.55; }
h1, h2, h3, .brand { font-family: Georgia, "Times New Roman", serif; line-height: 1.05; }
h1 { font-size: clamp(2.15rem, 8vw, 4.8rem); letter-spacing: -.045em; }
h2 { font-size: clamp(1.55rem, 5vw, 2.2rem); letter-spacing: -.025em; }
a { color: var(--accent); overflow-wrap: anywhere; }
:where(a[href]:not(.skip-link):not(.hub-tile)) { min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; }
img, svg { max-width: 100%; }
input, select, button { width: 100%; min-height: 44px; font: inherit; }
input, select { padding: .75rem; border: 1px solid var(--muted); border-radius: .65rem; background: var(--surface); color: var(--ink); }
button { padding: .75rem 1rem; border: 0; border-radius: .65rem; background: var(--accent); color: var(--accent-ink); cursor: pointer; font-weight: 750; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.visually-hidden, .skip-link { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip-link:focus { left: .5rem; top: .5rem; z-index: 20; width: auto; height: auto; clip-path: none; padding: .65rem; background: var(--surface); }
.preview-banner { padding: .55rem 1rem; text-align: center; background: var(--signal); color: var(--signal-ink); font-weight: 750; }
.site-header, main, .site-footer { width: min(100% - 2rem, 76rem); margin-inline: auto; }
.site-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .75rem; padding-block: 1rem; border-bottom: 1px solid var(--line); }
.brand { color: var(--ink); font-size: 1.15rem; font-weight: 800; letter-spacing: .12em; text-decoration: none; }
.site-nav { display: flex; max-width: 100%; gap: .45rem; overflow-x: auto; }
.site-nav a { min-height: 44px; display: inline-flex; align-items: center; padding-inline: .7rem; color: var(--ink); text-decoration: none; }
main { min-width: 0; padding-block: 1.2rem 3rem; }
.site-footer { padding-block: 1.5rem; border-top: 1px solid var(--line); color: var(--muted); }
.eyebrow { margin: 0; color: var(--accent); font-size: .75rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.catalog-hero { padding-block: 2.5rem 1.25rem; }
.catalog-hero h1 { max-width: 16ch; margin: .5rem 0 1.25rem; }
.page-heading { padding-block: 2rem 1rem; }
.page-heading h1 { margin: .4rem 0; }
.hero-search { display: grid; grid-template-columns: minmax(0, 1fr); gap: .55rem; max-width: 52rem; }
.catalog-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .45rem; margin: 0 0 2.5rem; }
.catalog-stats div { min-width: 0; padding: .75rem .25rem; border-top: 1px solid var(--line); }
.catalog-stats dt { color: var(--muted); font-size: .75rem; }
.catalog-stats dd { margin: .2rem 0 0; font: 500 clamp(1.45rem, 5vw, 2.2rem) Georgia, serif; }
.portal-section { margin-block: 2rem 3rem; }
.section-heading { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: .6rem; margin-bottom: 1rem; }
.section-heading h2 { margin: 0; }
.hub-atlas { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); grid-auto-flow: dense; gap: .6rem; }
.hub-tile { min-width: 0; min-height: 7rem; display: flex; flex-direction: column; justify-content: space-between; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--ink); text-decoration: none; }
.hub-tile strong { font-size: 1rem; }
.hub-tile span { color: var(--muted); font-size: .75rem; }
.hub-tile:nth-child(7n + 1) { grid-row: span 2; color: var(--feature-ink); border-color: var(--feature); background: var(--feature); }
.hub-tile:nth-child(7n + 1) span { color: currentColor; opacity: 1; }
.hub-tile:nth-child(7n + 2) { color: var(--signal-ink); border-color: var(--signal); background: var(--signal); }
.hub-tile:nth-child(7n + 2) span { color: currentColor; opacity: 1; }
.hub-tile[data-empty-hub] { grid-row: auto; color: var(--muted); border-style: dashed; border-color: var(--line); background: transparent; }
.catalog-filters { display: grid; grid-template-columns: minmax(0, 1fr); gap: .75rem; margin-block: 1.25rem; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.catalog-filters label { display: grid; gap: .3rem; min-width: 0; color: var(--muted); font-size: .8rem; }
.result-count, .role-line, .breadcrumbs { color: var(--muted); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: .4rem; font-size: .85rem; }
.neighbor-list { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.25rem; }
.neighbor-list a { min-height: 44px; display: inline-flex; align-items: center; padding: .55rem .7rem; border: 1px solid var(--line); border-radius: .6rem; background: var(--surface); }
.card-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: .8rem; }
.entry-card { min-width: 0; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow-wrap: anywhere; }
.entry-card__top { display: flex; align-items: start; justify-content: space-between; gap: .6rem; }
.entry-mark { width: 2.4rem; height: 2.4rem; display: grid; place-items: center; flex: 0 0 auto; border-radius: .7rem; color: var(--feature-ink); background: var(--feature); font: 500 1.15rem Georgia, serif; }
.role-pill { padding: .35rem .55rem; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .72rem; }
.entry-card h3 { margin: .85rem 0 .65rem; font-size: 1.45rem; }
.entry-card h3 a { color: var(--ink); text-decoration: none; }
.tag-list { display: flex; flex-wrap: wrap; gap: .4rem; margin: .7rem 0; padding: 0; list-style: none; }
.tag-list li, .tag-list a { color: var(--ink); font-size: .75rem; }
.tag-list li { padding: .35rem .5rem; border-radius: .35rem; background: var(--surface-soft); }
.card-facts { margin: .85rem 0; }
.card-facts div, .fact-panel dl div { display: grid; grid-template-columns: minmax(6rem, .8fr) minmax(0, 1fr); gap: .7rem; padding-block: .4rem; border-top: 1px solid var(--line); }
dt { color: var(--muted); }
dd { min-width: 0; margin: 0; }
.official-action { min-height: 44px; display: inline-flex; align-items: center; font-weight: 750; }
.pagination { min-height: 44px; display: flex; justify-content: space-between; gap: 1rem; margin-block: 1.5rem; }
.detail-hero { display: grid; gap: 1rem; padding-block: 1.5rem; border-bottom: 1px solid var(--line); }
.detail-hero h1 { margin: .4rem 0; }
.outbound-form { display: inline-block; margin: 0; }
.outbound-form--official { justify-self: start; }
.outbound-form button { width: auto; }
.outbound-link { padding: 0; border-radius: 0; background: transparent; color: var(--accent); font-weight: inherit; text-align: left; text-decoration: underline; }
.official-action { justify-self: start; padding: .65rem .8rem; border-radius: .6rem; background: var(--accent); color: var(--accent-ink); text-decoration: none; }
.quick-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .55rem; margin: 1rem 0 1.5rem; }
.quick-facts div { min-width: 0; padding: .8rem; border: 1px solid var(--line); border-radius: .7rem; background: var(--surface); }
.quick-facts dt { font-size: .75rem; }
.quick-facts dd { margin-top: .25rem; font-weight: 750; }
.detail-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; }
.detail-sections { display: grid; gap: .8rem; }
.fact-panel { min-width: 0; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow-wrap: anywhere; }
.fact-panel h2 { margin-top: 0; font-size: 1.35rem; }
.fact-panel > .outbound-form { min-height: 44px; display: inline-flex; align-items: center; }
.cooperation-list { padding-left: 1.2rem; }
.citation-rail { display: grid; align-content: start; gap: .6rem; }
.citation-rail h2 { margin: 0; }
.citation-rail article { display: grid; gap: .4rem; padding: .85rem; border: 1px solid var(--line); border-radius: .7rem; background: var(--surface); }
.citation-rail time { color: var(--muted); font-size: .75rem; }
.related-programs { margin-top: 2.5rem; }

@media (prefers-color-scheme: dark) {
    :root {
        --page: #151918;
        --surface: #202624;
        --surface-soft: #29312e;
        --ink: #f1f5ef;
        --muted: #a0aaa5;
        --line: #3c4642;
        --accent: #c7ef58;
        --accent-ink: #172017;
        --feature: #c7ef58;
        --feature-ink: #172017;
        --signal: #45a5ff;
        --signal-ink: #0d2133;
        --focus: #a9dd2f;
    }
}

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

@media (min-width: 48rem) {
    .hero-search { grid-template-columns: minmax(0, 1fr) auto; }
    .hero-search button { width: auto; min-width: 7rem; }
    .hub-atlas { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .catalog-filters { grid-template-columns: 2fr repeat(3, minmax(0, 1fr)) auto; align-items: end; }
    .catalog-filters--hub { grid-template-columns: 2fr repeat(2, minmax(0, 1fr)) auto; }
    .catalog-filters button { width: auto; }
    .detail-hero { grid-template-columns: minmax(0, 1fr) auto; align-items: start; }
    .detail-hero .tag-list { grid-column: 1 / -1; }
    .quick-facts { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .detail-layout { grid-template-columns: minmax(0, 1fr) minmax(13rem, .32fr); }
}

@media (min-width: 68rem) {
    .card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}