:root {
  --ink: #142b3a;
  --ink-soft: #47606b;
  --blue: #1d4054;
  --blue-deep: #0e2738;
  --stone-0: #f5f3ee;
  --stone-1: #e8e5dd;
  --stone-2: #d6d2c7;
  --paper: #fffdf9;
  --green: #6d927d;
  --green-deep: #426957;
  --coral: #bd775d;
  --line: rgba(20, 43, 58, .16);
  --shadow: 0 16px 40px rgba(20, 43, 58, .08);
  --font-display: "Source Serif 4", Georgia, serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
  --shell: min(88vw, 1240px);
  --radius: 5px;
  --gutter: clamp(1rem, 2.1vw, 2rem);
}

html[data-theme="dark"] {
  --ink: #e8eee9;
  --ink-soft: #aec0bc;
  --blue: #9fbdc6;
  --blue-deep: #071923;
  --stone-0: #0c202a;
  --stone-1: #18323d;
  --stone-2: #2e4952;
  --paper: #122b35;
  --green: #91b59c;
  --green-deep: #b3d3bb;
  --coral: #dc997d;
  --line: rgba(231, 240, 235, .16);
  --shadow: 0 16px 40px rgba(0, 0, 0, .24);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--stone-0);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.55;
  overflow-x: hidden;
}
body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: .28;
  background-image: linear-gradient(rgba(20, 43, 58, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(20, 43, 58, .025) 1px, transparent 1px);
  background-size: 34px 34px;
}
a { color: inherit; }
img { max-width: 100%; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }

.site-shell { width: var(--shell); margin-inline: auto; }
.utility-bar {
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: .77rem;
  letter-spacing: .02em;
}
.utility-inner { min-height: 2.1rem; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.utility-links { display: flex; gap: 1rem; flex-wrap: wrap; }
.utility-bar a, .footer a { text-decoration: none; }
.utility-bar a:hover, .footer a:hover { color: var(--green-deep); text-decoration: underline; text-underline-offset: .2em; }

.site-header { background: color-mix(in srgb, var(--stone-0) 88%, transparent); backdrop-filter: blur(12px); }
.brand-row { display: grid; grid-template-columns: minmax(14rem, 1.2fr) minmax(12rem, .8fr) minmax(15rem, .9fr); align-items: center; gap: 2rem; padding: 1.25rem 0 1rem; }
.brand-lockup { display: flex; align-items: center; gap: .75rem; text-decoration: none; }
.brand-mark { display: grid; place-items: center; flex: 0 0 3rem; width: 3rem; height: 3rem; color: var(--paper); background: var(--blue-deep); border-radius: 50%; box-shadow: inset 0 0 0 5px var(--green); }
.brand-mark svg { width: 1.8rem; height: 1.8rem; }
.wordmark { max-width: 16rem; font-size: 1.26rem; font-weight: 600; line-height: 1.05; letter-spacing: -.02em; }
.brand-value { margin: 0; color: var(--ink-soft); font-family: var(--font-display); font-size: 1.15rem; font-style: italic; }
.header-search { position: relative; }
.header-search input { width: 100%; border: 1px solid var(--line); border-radius: 999px; padding: .72rem 2.8rem .72rem 1rem; background: var(--paper); color: var(--ink); }
.header-search button { position: absolute; right: .35rem; top: .35rem; width: 2rem; height: 2rem; border: 0; border-radius: 50%; background: var(--green); color: #fff; cursor: pointer; }
.header-search button svg { width: 1rem; }

.nav-row { border-block: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; gap: .8rem; min-height: 3.1rem; }
.primary-nav { display: flex; align-items: center; gap: .2rem; }
.primary-nav a { padding: .62rem .75rem; color: var(--ink-soft); font-size: .84rem; font-weight: 600; text-decoration: none; }
.primary-nav a:hover, .primary-nav a[aria-current="page"] { color: var(--blue-deep); background: color-mix(in srgb, var(--green) 13%, transparent); }
.nav-tools { display: flex; align-items: center; gap: .45rem; margin-left: auto; }
[data-theme-toggle], .menu-toggle { display: inline-grid; place-items: center; width: 2.35rem; height: 2.35rem; border: 1px solid var(--line); border-radius: 50%; background: var(--paper); color: var(--ink); cursor: pointer; }
[data-theme-toggle] { color: var(--green-deep); }
[data-theme-toggle] svg, .menu-toggle svg { width: 1.05rem; height: 1.05rem; }
.menu-toggle { display: none; }
.topic-ribbon { border-bottom: 1px solid var(--line); }
.topic-ribbon .site-shell { display: flex; align-items: center; gap: .45rem; min-height: 2.55rem; overflow-x: auto; scrollbar-width: none; }
.topic-ribbon a { white-space: nowrap; padding: .3rem .65rem; border: 1px solid transparent; border-radius: 999px; color: var(--ink-soft); font-size: .73rem; font-weight: 600; text-decoration: none; }
.topic-ribbon a:hover { border-color: var(--green); color: var(--green-deep); }

main { padding: clamp(2rem, 4vw, 4.2rem) 0 5rem; }
.rail-layout { display: grid; grid-template-columns: minmax(0, 1fr) 11.5rem; gap: 1.5rem; align-items: start; }
.rail-layout:has([data-side-links][hidden]) { grid-template-columns: minmax(0, 1fr); }
[data-side-links][hidden] { display: none; }
.side-links { position: sticky; top: 1rem; padding: 1rem; border-top: 3px solid var(--green); background: var(--paper); box-shadow: var(--shadow); }
.side-links h2 { margin: 0 0 .8rem; font-family: var(--font-display); font-size: 1.15rem; }
.side-links ol { margin: 0; padding-left: 1.15rem; color: var(--ink-soft); font-size: .78rem; }
.side-links li + li { margin-top: .55rem; }
.side-links a { text-decoration: none; }
.side-links a:hover { color: var(--green-deep); text-decoration: underline; text-underline-offset: .15em; }

.eyebrow { margin: 0 0 .65rem; color: var(--green-deep); font-size: .7rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { color: var(--blue-deep); font-family: var(--font-display); font-weight: 600; letter-spacing: -.025em; line-height: 1.1; }
h1 { margin-bottom: 1rem; font-size: clamp(2.25rem, 4.7vw, 4.2rem); }
h2 { margin-bottom: .7rem; font-size: clamp(1.65rem, 2.5vw, 2.55rem); }
h3 { margin-bottom: .45rem; font-size: 1.2rem; }
.lede { max-width: 58rem; color: var(--ink-soft); font-size: 1.05rem; }

.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 1.2rem; padding-bottom: .75rem; border-bottom: 1px solid var(--line); }
.section-heading h2 { margin: 0; }
.section-heading a { color: var(--green-deep); font-size: .82rem; font-weight: 700; text-decoration: none; }
.section-heading a:hover { text-decoration: underline; text-underline-offset: .2em; }

.intro-band { display: grid; grid-template-columns: 1.18fr .82fr; gap: var(--gutter); align-items: stretch; }
.intro-panel, .feature-desk { padding: clamp(1.25rem, 2.4vw, 2.35rem); border: 1px solid var(--line); background: var(--paper); box-shadow: var(--shadow); }
.intro-panel { position: relative; overflow: hidden; }
.intro-panel::after { position: absolute; right: -5rem; bottom: -6rem; width: 14rem; height: 14rem; border: 1px solid color-mix(in srgb, var(--green) 40%, transparent); border-radius: 50%; content: ""; box-shadow: 0 0 0 2rem color-mix(in srgb, var(--green) 6%, transparent), 0 0 0 4rem color-mix(in srgb, var(--green) 4%, transparent); }
.intro-panel .lede { max-width: 38rem; }
.search-desk { position: relative; z-index: 1; margin: 1.5rem 0 1rem; padding: 1rem; border: 1px solid var(--line); background: var(--stone-0); }
.search-desk label { display: block; margin-bottom: .4rem; font-size: .76rem; font-weight: 700; }
.search-line { display: flex; gap: .5rem; }
.search-line input, .search-line select, .archive-form input, .archive-form select, .signup-form input, .field input, .field select, .field textarea { min-width: 0; border: 1px solid var(--line); border-radius: 3px; padding: .72rem .78rem; background: var(--paper); color: var(--ink); }
.search-line input { flex: 1; }
.search-line button, .button { display: inline-flex; align-items: center; justify-content: center; gap: .45rem; border: 1px solid var(--green-deep); border-radius: 3px; padding: .72rem 1rem; background: var(--green-deep); color: white; font-size: .82rem; font-weight: 700; text-decoration: none; cursor: pointer; }
.button.secondary { border-color: var(--line); background: transparent; color: var(--ink); }
.button:hover { filter: brightness(1.08); }
.filter-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: .5rem; margin-top: .6rem; }
.actions { display: flex; flex-wrap: wrap; gap: .65rem; position: relative; z-index: 1; }
.feature-desk { display: flex; flex-direction: column; gap: 1rem; background: var(--blue-deep); color: #f5f7f3; }
.feature-desk h2, .feature-desk h3 { color: #f5f7f3; }
.feature-desk .section-heading { border-color: rgba(255,255,255,.18); }
.feature-desk .section-heading a, .feature-desk .eyebrow { color: #b7d0bd; }
.feature-main { min-height: 12rem; padding: 1rem; border: 1px solid rgba(255,255,255,.2); background: linear-gradient(135deg, rgba(109,146,125,.34), rgba(14,39,56,.18)); }
.feature-main .empty-state, .feature-stack .empty-state { color: #c0d2d0; }
.feature-stack { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .65rem; }
.feature-stack [data-feed] { min-height: 9rem; }

.news-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); gap: 1rem; align-items: stretch; }
[data-feed] { min-width: 0; }
.empty-state { margin: 0; color: var(--ink-soft); font-size: .82rem; }
.news-grid:has(.empty-state:only-child) { min-height: 7rem; }
.story-card { min-width: 0; padding: 1rem; border: 1px solid var(--line); background: var(--paper); }
.story-card h3 { font-size: 1.12rem; }
.story-card p { color: var(--ink-soft); font-size: .9rem; }
.story-card .story-meta, .story-meta { display: flex; flex-wrap: wrap; align-items: center; gap: .35rem .7rem; margin-bottom: .55rem; color: var(--ink-soft); font-size: .7rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.category-label { color: var(--green-deep); }
.story-image { display: block; position: relative; aspect-ratio: 16 / 8; margin: -.25rem -.25rem .9rem; overflow: hidden; background: var(--stone-1); }
.story-image img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.story-card a:not(.story-image) { text-decoration: none; }
.story-card a:not(.story-image):hover h3 { color: var(--green-deep); }

.home-section { margin-top: clamp(3rem, 5.5vw, 6rem); }
.topic-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .7rem; }
.topic-cell { min-height: 14rem; padding: 1rem; border-top: 4px solid var(--green); background: var(--paper); box-shadow: var(--shadow); }
.topic-cell:nth-child(2) { border-color: var(--blue); }
.topic-cell:nth-child(3) { border-color: var(--coral); }
.topic-cell:nth-child(4) { border-color: var(--ink); }
.topic-cell h3 { font-size: 1.28rem; }
.topic-cell > p { min-height: 4.2rem; color: var(--ink-soft); font-size: .82rem; }
.topic-cell [data-feed] { padding-top: .65rem; border-top: 1px solid var(--line); }
.topic-cell .story-card { padding: .55rem 0; border: 0; border-bottom: 1px solid var(--line); background: transparent; }
.topic-cell .story-card h3 { margin: 0; font-family: var(--font-body); font-size: .8rem; font-weight: 700; letter-spacing: 0; }
.topic-cell .story-card p, .topic-cell .story-image { display: none; }
.topic-cell .story-meta { margin: 0 0 .2rem; font-size: .61rem; }

.desk-band { display: grid; grid-template-columns: 1.15fr .72fr .9fr; gap: var(--gutter); align-items: stretch; }
.desk-column { min-width: 0; display: flex; flex-direction: column; }
.desk-column > [data-feed] { display: flex; flex-direction: column; gap: .75rem; flex: 1 1 auto; min-height: 0; overflow: hidden; }
.desk-column .story-card { flex: 0 0 auto; }
.desk-column.wide .story-card { min-height: 13.5rem; }
.desk-column.wide .story-card .story-image { aspect-ratio: 2.3 / 1; }
.desk-column.rail .story-card { padding: .75rem; }
.desk-column.rail .story-card h3 { font-family: var(--font-body); font-size: .88rem; letter-spacing: 0; }
.desk-column.rail .story-image { display: none; }
.desk-column.mixed .story-card:first-child { min-height: 12rem; }
.desk-column.mixed .story-card:not(:first-child) { padding: .7rem; }
.desk-column.mixed .story-card:not(:first-child) h3 { font-family: var(--font-body); font-size: .88rem; letter-spacing: 0; }

.theme-matrix { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .85rem; }
.theme-tile { min-height: 17rem; padding: 1.1rem; border: 1px solid var(--line); background: var(--paper); }
.theme-tile:nth-child(3n+2) { transform: translateY(1rem); }
.theme-tile .tile-index { display: block; margin-bottom: .45rem; color: var(--coral); font-family: var(--font-mono); font-size: .7rem; }
.theme-tile p { min-height: 3.6rem; color: var(--ink-soft); font-size: .86rem; }
.theme-tile [data-feed] { padding-top: .7rem; border-top: 1px solid var(--line); }
.theme-tile .story-card { padding: .45rem 0; border: 0; border-bottom: 1px solid var(--line); background: transparent; }
.theme-tile .story-card h3 { font-family: var(--font-body); font-size: .84rem; letter-spacing: 0; }
.theme-tile .story-card p, .theme-tile .story-image { display: none; }
.theme-tile .story-meta { margin-bottom: .2rem; }

.learning-band { display: grid; grid-template-columns: 1.1fr .9fr; gap: var(--gutter); align-items: stretch; }
.learning-card { position: relative; min-height: 20rem; padding: clamp(1.3rem, 3vw, 2.4rem); overflow: hidden; background: var(--blue-deep); color: #f5f7f3; }
.learning-card::after { position: absolute; right: -5rem; bottom: -6rem; width: 18rem; height: 18rem; border: 1px solid rgba(183,208,189,.55); border-radius: 50%; content: ""; box-shadow: 0 0 0 2rem rgba(109,146,125,.15), 0 0 0 4rem rgba(109,146,125,.08); }
.learning-card h2 { max-width: 26rem; color: #fff; }
.learning-card p { position: relative; z-index: 1; max-width: 33rem; color: #c9d8d4; }
.learning-card .button { position: relative; z-index: 1; margin-top: 1rem; background: var(--green); border-color: var(--green); }
.learning-side { padding: 1rem; border: 1px solid var(--line); background: var(--paper); }
.learning-side [data-feed] { display: flex; flex-direction: column; gap: 0; }
.learning-side .story-card { padding: .8rem 0; border-width: 0 0 1px; background: transparent; }
.learning-side .story-card h3 { font-family: var(--font-body); font-size: .9rem; letter-spacing: 0; }
.learning-side .story-image { display: none; }

.about-band { display: grid; grid-template-columns: 1.35fr .65fr; gap: var(--gutter); align-items: stretch; }
.about-copy { padding: clamp(1.2rem, 3vw, 2.2rem); background: var(--paper); border: 1px solid var(--line); }
.audience-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: .6rem; margin-top: 1.3rem; padding: 0; list-style: none; }
.audience-list li { display: flex; gap: .55rem; align-items: baseline; padding: .6rem; border-top: 2px solid var(--green); color: var(--ink-soft); font-size: .85rem; }
.audience-list strong { color: var(--ink); }
.service-rail { padding: 1.1rem; border: 1px solid var(--line); background: var(--stone-1); }
.service-rail h3 { font-size: 1.35rem; }
.service-rail ul { margin: 0; padding: 0; list-style: none; }
.service-rail li { border-bottom: 1px solid var(--line); }
.service-rail a { display: block; padding: .62rem 0; color: var(--ink-soft); font-size: .83rem; text-decoration: none; }
.service-rail a:hover { color: var(--green-deep); padding-left: .25rem; }

.publication-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .85rem; align-items: stretch; }
.publication-grid .story-card { display: flex; flex-direction: column; height: 100%; }
.publication-grid .story-image { order: -1; aspect-ratio: 3 / 1.2; }
.publication-grid .story-card h3 { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 3; font-size: 1.02rem; }
.publication-grid .story-card p { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.publication-grid .story-card .story-meta { margin-top: auto; padding-top: .7rem; }

.reference-band { display: grid; grid-template-columns: 1.1fr .9fr; gap: var(--gutter); align-items: stretch; }
.reference-list { padding: 1.2rem; border: 1px solid var(--line); background: var(--paper); }
.reference-list ol { margin: 0; padding-left: 1.8rem; }
.reference-list li { padding: .48rem 0 .48rem .25rem; border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: .86rem; }
.reference-list li::marker { color: var(--green-deep); font-family: var(--font-mono); font-size: .72rem; }
.reference-side { display: flex; flex-direction: column; gap: .75rem; }
.reference-side [data-feed] { display: flex; flex-direction: column; gap: .75rem; min-height: 0; overflow: hidden; }
.reference-side .story-card { flex: 0 0 auto; }
.reference-side .story-card:not(:first-child) { padding: .72rem; }
.reference-side .story-card:not(:first-child) h3 { font-family: var(--font-body); font-size: .87rem; letter-spacing: 0; }
.reference-side .story-card:not(:first-child) .story-image { display: none; }

.signup-band { display: grid; grid-template-columns: .9fr 1.1fr; gap: var(--gutter); padding: clamp(1.3rem, 3vw, 2rem); border: 1px solid var(--line); background: var(--stone-1); }
.signup-band h2 { font-size: clamp(1.5rem, 2.4vw, 2.1rem); }
.update-list { display: flex; flex-wrap: wrap; gap: .45rem; padding: 0; list-style: none; }
.update-list li { padding: .38rem .6rem; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-soft); font-size: .74rem; }
.signup-form { display: flex; gap: .5rem; align-items: start; }
.signup-form input { flex: 1; }
.form-note { margin: .55rem 0 0; color: var(--ink-soft); font-size: .72rem; }

.footer { padding: 3rem 0 1rem; background: var(--blue-deep); color: #d8e2dd; }
.footer-grid { display: grid; grid-template-columns: 1.25fr 1fr 1fr 1fr; gap: 2rem; }
.footer h2, .footer h3 { color: #fff; }
.footer h2 { font-size: 1.55rem; }
.footer h3 { margin-bottom: .55rem; font-family: var(--font-body); font-size: .77rem; letter-spacing: .08em; text-transform: uppercase; }
.footer p, .footer li { color: #b4c7c2; font-size: .8rem; }
.footer ul { margin: 0; padding: 0; list-style: none; }
.footer li + li { margin-top: .35rem; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; margin-top: 2.2rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,.18); color: #9bb0ab; font-size: .72rem; }

.page-intro { margin-bottom: 2rem; padding-bottom: 1.3rem; border-bottom: 1px solid var(--line); }
.archive-toolbar { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1rem; align-items: end; margin-bottom: 1.1rem; padding: 1rem; border: 1px solid var(--line); background: var(--paper); }
.archive-form { display: flex; gap: .5rem; }
.archive-form input { flex: 1; }
.filter-list { display: flex; flex-wrap: wrap; gap: .4rem; }
.filter-list a { padding: .45rem .6rem; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-soft); font-size: .72rem; text-decoration: none; }
.filter-list a:hover { border-color: var(--green); color: var(--green-deep); }
.archive-results { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)); gap: 1rem; align-items: stretch; }
.archive-results .story-card { display: flex; flex-direction: column; height: 100%; }
.archive-results .story-image { aspect-ratio: 3 / 1.45; }
.archive-results .story-card h3 { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }
.archive-results .story-card p { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }

.content-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(18rem, .85fr); gap: var(--gutter); align-items: stretch; }
.content-panel { padding: clamp(1.25rem, 3vw, 2.3rem); border: 1px solid var(--line); background: var(--paper); }
.content-panel p, .content-panel li { color: var(--ink-soft); }
.content-panel > p:first-child img { display: block; width: 100%; aspect-ratio: 2 / 1; object-fit: cover; }
.content-panel h2 { margin-top: 2rem; font-size: 1.8rem; }
.content-panel h2:first-child { margin-top: 0; }
.content-panel ul { padding-left: 1.2rem; }
.notice { padding: 1rem; border-left: 4px solid var(--green); background: color-mix(in srgb, var(--green) 12%, var(--paper)); }
.tool-card { padding: 1.2rem; border: 1px solid var(--line); background: var(--stone-1); }
.tool-card + .tool-card { margin-top: .8rem; }
.tool-card h3 { font-size: 1.25rem; }
.tool-card p { color: var(--ink-soft); font-size: .88rem; }
.step-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; padding: 0; list-style: none; counter-reset: steps; }
.step-list li { counter-increment: steps; padding: 1rem; border-top: 3px solid var(--green); background: var(--stone-0); }
.step-list li::before { display: block; margin-bottom: .5rem; color: var(--coral); content: "0" counter(steps); font-family: var(--font-mono); font-size: .72rem; }
.form-card { padding: 1.2rem; border: 1px solid var(--line); background: var(--paper); }
.field { display: grid; gap: .3rem; margin-bottom: .8rem; }
.field label { font-size: .78rem; font-weight: 700; }
.field textarea { min-height: 7rem; resize: vertical; }
.form-status { min-height: 1.4rem; margin: .75rem 0 0; color: var(--green-deep); font-size: .82rem; font-weight: 600; }

.byline { display: flex; align-items: center; gap: .75rem; margin: 0 0 1.5rem; padding: .75rem; border: 1px solid var(--line); background: var(--paper); }
.byline img { width: 2.6rem; height: 2.6rem; border-radius: 50%; object-fit: cover; }
.byline p { margin: .15rem 0 0; color: var(--ink-soft); font-size: .8rem; }
#article-content { max-width: 52rem; }
.article-header h1 { max-width: 48rem; }
.article-deck { color: var(--ink-soft); font-size: 1.1rem; }
.article-cover { display: block; width: 100%; aspect-ratio: 2 / 1; object-fit: cover; margin: 1.5rem 0; }
.prose { font-family: var(--font-body); font-size: 1.05rem; line-height: 1.75; }
.prose h2, .prose h3 { margin-top: 2.2rem; }
.prose a { color: var(--green-deep); text-decoration: underline; text-decoration-thickness: .09em; text-underline-offset: .18em; }
.prose li + li { margin-top: .5rem; }
#category-description { max-width: 52rem; color: var(--ink-soft); }

.not-found { min-height: 50vh; display: grid; place-items: center; text-align: center; }
.not-found-inner { max-width: 36rem; }
.not-found .mark-404 { margin-bottom: 1rem; color: var(--green-deep); font-family: var(--font-mono); font-size: .8rem; letter-spacing: .15em; }

@media (max-width: 1050px) {
  .brand-row { grid-template-columns: 1fr 1fr; }
  .brand-value { display: none; }
  .header-search { grid-column: 1 / -1; }
  .primary-nav a { padding-inline: .52rem; font-size: .78rem; }
  .publication-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 820px) {
  .site-shell { width: min(92vw, 680px); }
  .utility-inner { align-items: start; padding-block: .5rem; }
  .utility-links { justify-content: end; }
  .nav-inner { position: relative; min-height: 3.5rem; }
  .primary-nav { position: absolute; left: 0; right: 0; top: 3.5rem; z-index: 5; display: none; padding: .55rem; border: 1px solid var(--line); background: var(--paper); box-shadow: var(--shadow); }
  .primary-nav.is-open { display: grid; }
  .primary-nav a { padding: .7rem; }
  .menu-toggle { display: inline-grid; }
  .intro-band, .desk-band, .learning-band, .about-band, .reference-band, .content-layout { grid-template-columns: 1fr; }
  .topic-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .theme-matrix { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .theme-tile:nth-child(3n+2) { transform: none; }
  .publication-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .archive-toolbar, .signup-band { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .side-links { position: static; }
  .rail-layout { grid-template-columns: 1fr; }
}
@media (max-width: 540px) {
  :root { --gutter: 1rem; }
  .site-shell { width: min(94vw, 430px); }
  .brand-row { grid-template-columns: 1fr; gap: .8rem; }
  .header-search { grid-column: auto; }
  h1 { font-size: 2.35rem; }
  .search-line, .archive-form, .signup-form { flex-direction: column; }
  .filter-row, .topic-strip, .theme-matrix, .publication-grid, .audience-list, .step-list { grid-template-columns: 1fr; }
  .topic-cell { min-height: auto; }
  .topic-cell > p { min-height: auto; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}