/* FAS design concept: extends fas.org's language (22 Oct 2026). Free stand-ins for Stabil Grotesk / Fraktion Mono. */
@font-face { font-family: "Inter Tight"; src: url("../files/inter-tight.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: "Plex Mono"; src: url("../files/ibm-plex-mono-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Plex Mono"; src: url("../files/ibm-plex-mono-600.woff2") format("woff2"); font-weight: 600; font-display: swap; }

:root {
  --black: #000; --blue: #255979; --grey: #E7E7E7; --offwhite: #F4F4F4; --white: #fff;
  --science: #36BD96; --science-text: #237C62; --tech: #45A6FF; --regional: #A77AD7; --social: #FFBD12; --national: #E94F37;
  --rule: rgba(0, 0, 0, .18);
  --sans: "Inter Tight", "Helvetica Neue", Arial, sans-serif;
  --mono: "Plex Mono", ui-monospace, Menlo, monospace;
  --wrap: 1200px;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--offwhite); color: var(--black); font: 400 1rem/1.6 var(--sans); }
a { color: var(--blue); text-underline-offset: .2em; }
a:hover { color: var(--black); }
:focus-visible { outline: 3px solid var(--black); outline-offset: 2px; }
img, svg { max-width: 100%; height: auto; display: block; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 0; background: var(--black); color: var(--white); padding: .5rem 1rem; z-index: 10; }
.skip:focus { left: 8px; top: 8px; }

h1, h2, h3 { overflow-wrap: anywhere; hyphens: auto; font-weight: 400; color: var(--blue); letter-spacing: -.03em; line-height: 1.08; margin: 0 0 .5em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h1 b, h2 b { font-weight: 600; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3 { font-size: 1.3rem; letter-spacing: -.02em; text-transform: none; }
.lede { font-size: 1.15rem; max-width: 46rem; }
.small { font-size: .9rem; }
.mono-label, .mono-link { font: 400 .8rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: .06em; display: inline-flex; align-items: center; gap: .5em; color: var(--black); }
.mono-link { text-decoration: none; margin-top: .5rem; }
.mono-link:hover { text-decoration: underline; }
.tri { width: 0; height: 0; border-left: .55em solid currentColor; border-top: .32em solid transparent; border-bottom: .32em solid transparent; }
.tbc { font-family: var(--mono); font-size: .75rem; text-transform: uppercase; color: #5a5a5a; }

/* concept bar + design notes */
.concept-bar { background: var(--black); color: var(--white); font-size: .85rem; }
.concept-bar .wrap { display: flex; flex-wrap: wrap; gap: .5rem 1rem; align-items: center; justify-content: space-between; padding-top: .45rem; padding-bottom: .45rem; }
.concept-bar a { color: var(--white); }
.concept-bar button { font: inherit; background: transparent; color: var(--white); border: 1px solid var(--white); padding: .2rem .7rem; cursor: pointer; }
.note { border-left: 4px solid var(--science); background: var(--white); padding: .8rem 1rem; margin: 1.5rem 0 0; font-size: .92rem; max-width: 52rem; }
.note b:first-child { font: 600 .75rem/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; margin-right: .5em; color: var(--science-text); }
body.notes-off .note { display: none; }

/* network bar (RFP item C) */
.network { background: var(--white); border-bottom: 1px solid var(--rule); font: 400 .78rem/1 var(--mono); text-transform: uppercase; letter-spacing: .05em; }
.network .wrap { display: flex; flex-wrap: wrap; gap: 0 1rem; align-items: center; }
.network__label { color: #5a5a5a; white-space: nowrap; padding: .6rem 0; }
.network ul { display: flex; flex-wrap: wrap; list-style: none; margin: 0; padding: 0; }
.network a { display: block; padding: .6rem .7rem; color: var(--black); text-decoration: none; overflow-wrap: anywhere; }
.network a:hover { box-shadow: inset 0 -3px 0 var(--rule); }
.network a[aria-current], .network a[aria-current]:hover { box-shadow: inset 0 -3px 0 var(--science); font-weight: 600; }

/* header */
.site-head { border-bottom: 1px solid var(--rule); background: var(--offwhite); }
.head-row { display: flex; flex-wrap: wrap; gap: .75rem 2rem; align-items: center; justify-content: space-between; padding-top: 1rem; padding-bottom: 1rem; }
.brand { display: flex; flex-wrap: wrap; align-items: center; gap: .7rem; text-decoration: none; color: var(--blue); }
.brand__fas { font: 300 2.2rem/1 var(--sans); letter-spacing: .08em; }
.brand__name { font: 400 .62rem/1.05 var(--mono); text-transform: uppercase; letter-spacing: .08em; max-width: 7.5rem; }
.brand__name .sm { font-size: .5rem; }
.brand__site { border-left: 1px solid var(--rule); padding-left: .7rem; font: 600 1.05rem/1.1 var(--sans); color: var(--black); }
.site-head nav ul { display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; list-style: none; margin: 0; padding: 0; }
.site-head nav a { font: 400 .8rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--black); text-decoration: none; padding: .3rem 0; display: inline-block; }
.site-head nav a:hover { box-shadow: inset 0 -2px 0 var(--rule); }
.site-head nav a[aria-current], .site-head nav a[aria-current]:hover { box-shadow: inset 0 -2px 0 var(--blue); }

/* sections */
.band { padding: 3rem 0; border-bottom: 1px solid var(--rule); }
.band--alt { background: var(--grey); }
.band__head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 1rem; border-bottom: 1px solid var(--black); margin-bottom: 1.5rem; }
.hero { padding: 2.5rem 0 3rem; border-bottom: 1px solid var(--rule); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 2.5rem; align-items: center; }
.hero__art .instrument { clip-path: polygon(30% 0, 70% 0, 100% 100%, 64% 100%, 50% 58%, 36% 100%, 0 100%); }
.two-col { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 2.5rem; align-items: start; }
.prose { max-width: 48rem; }
.prose li { margin-bottom: .6rem; }

/* chips + cards */
.chip { display: inline-block; font: 600 .72rem/1 var(--mono); text-transform: uppercase; letter-spacing: .05em; padding: .4em .6em; color: var(--black); background: var(--science); }
.chip--tech { background: var(--tech); } .chip--regional { background: var(--regional); } .chip--social { background: var(--social); } .chip--national { background: var(--national); }
.card { border-top: 1px solid var(--black); padding: 1rem 0 1.25rem; }
.card__meta { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; margin-bottom: .6rem; }
.date { font: 400 .78rem/1 var(--mono); }
.card__title { margin: 0 0 .4rem; }
.card__title a { color: var(--black); text-decoration: none; }
.card__title a:hover { text-decoration: underline; }
.card--big .card__title { font-size: clamp(1.5rem, 3vw, 2rem); }
.card p { margin: 0 0 .6rem; }
.grid-lead { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 2rem; }
.terms { list-style: none; margin: .4rem 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem; }
.terms a { display: inline-block; font: 400 .74rem/1 var(--mono); text-transform: uppercase; letter-spacing: .04em; border: 1px solid var(--black); padding: .35em .55em; color: var(--black); text-decoration: none; }
.terms a:hover { background: var(--black); color: var(--white); }

/* carousel */
.carousel__controls { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.carousel__controls button { font: 600 1rem/1 var(--mono); width: 2.75rem; height: 2.75rem; border: 1px solid var(--black); background: var(--offwhite); cursor: pointer; }
.carousel__controls button:hover { background: var(--black); color: var(--white); }
.c-status { font: 400 .85rem/1 var(--mono); }
.slides { list-style: none; margin: 0; padding: 0; }
.slide { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 2rem; align-items: center; background: var(--offwhite); padding: 1.25rem; }
.slide + .slide { margin-top: 1rem; }
.js .slide + .slide { margin-top: 0; }
.slide h3 a { color: var(--black); }
.slide__art { max-width: 260px; }

/* charts */
.chart { margin: 0; background: var(--white); padding: 1.25rem; border-top: 3px solid var(--blue); }
.chart figcaption { display: grid; gap: .3rem; margin-bottom: .75rem; }
.chart figcaption b { font-weight: 600; font-size: 1.1rem; }
.chart .ax { font: 400 12px var(--mono); fill: #333; }
.chart .val { font: 600 12px var(--mono); fill: var(--black); }
.chart-note { font-size: .88rem; margin: .5rem 0; }
.chart details { font-size: .9rem; }
.chart summary { cursor: pointer; color: var(--blue); text-decoration: underline; }
table { border-collapse: collapse; width: 100%; font-size: .92rem; }
th, td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid var(--rule); vertical-align: middle; }
thead th { font: 600 .75rem/1.2 var(--mono); text-transform: uppercase; letter-spacing: .05em; border-bottom: 1px solid var(--black); }
.table-wrap { overflow-x: auto; background: var(--white); }
.swatch-img { display: inline-block; vertical-align: middle; margin-right: .4rem; }
.swatch { display: inline-block; font: 600 .72rem/1 var(--mono); text-transform: uppercase; padding: .45em .6em; margin-right: .4rem; }
th, td { overflow-wrap: anywhere; }
.contrast td .swatch, .contrast td .swatch-img { margin-bottom: .2rem; }
.fail, .pass { font: 600 .72rem/1 var(--mono); text-transform: uppercase; padding: .25em .45em; margin-left: .3rem; }
.fail { border: 1px solid #A3260F; color: #A3260F; }
.pass { border: 1px solid var(--science-text); color: var(--science-text); }

/* social + bio */
.social-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.social-card { background: var(--offwhite); border: 1px dashed #6b6b6b; padding: 1rem; display: grid; gap: .6rem; min-height: 9rem; }
.social-card__net { font: 600 .78rem/1 var(--mono); text-transform: uppercase; }
.social-card__ph { color: #4a4a4a; }
.social-card__meta { font: 400 .72rem/1.3 var(--mono); text-transform: uppercase; color: #4a4a4a; }
.bio { background: var(--white); padding: 1.25rem; border-top: 3px solid var(--science); }
.bio__head { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.bio__head > div { min-width: 0; }
.bio__avatar { width: 64px; height: 64px; background: var(--grey); display: grid; place-items: center; font: 600 1rem var(--mono); }
.bio__name { font-size: 1.3rem; margin: 0; color: var(--blue); }
.bio__role { margin: 0; }
.bio__links { list-style: none; display: flex; gap: .5rem; padding: 0; margin: 1rem 0; flex-wrap: wrap; }
.bio__links li { border: 1px solid var(--black); padding: .35rem .6rem; }
.bio__pinned { border: 1px dashed #6b6b6b; padding: .9rem; }

/* filters + list */
.filters ul { list-style: none; margin: 1.5rem 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem; }
.tf { font: 400 .74rem/1 var(--mono); text-transform: uppercase; letter-spacing: .04em; border: 1px solid var(--black); background: var(--offwhite); padding: .55em .6em; cursor: pointer; }
.tf[aria-pressed="true"] { background: var(--black); color: var(--white); }
.tf .n { opacity: .75; }
.result-count { font: 400 .8rem/1 var(--mono); text-transform: uppercase; margin: 1.25rem 0 .5rem; }
.pub-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 2rem; }

/* publication template with sidenotes */
.pub-head { padding-top: 2.5rem; padding-bottom: 1.5rem; max-width: 52rem; margin-left: max(16px, calc((100vw - var(--wrap)) / 2 + 16px)); }
.share { display: flex; gap: 1rem; align-items: center; margin-top: 1rem; flex-wrap: wrap; }
.pub-body { max-width: 40rem; margin-left: max(16px, calc((100vw - var(--wrap)) / 2 + 16px)); padding-bottom: 3rem; }
.pub-body > p { font-size: 1.08rem; }
.ref a { text-decoration: none; font: 600 .75rem var(--mono); padding: 0 .15em; }
.sidenote { font-size: .88rem; line-height: 1.45; background: var(--white); border-left: 3px solid var(--science); padding: .6rem .8rem; margin: -.4rem 0 1rem; }
.sn-num { font: 600 .75rem var(--mono); margin-right: .4em; color: var(--science-text); }
@media (min-width: 1100px) {
  .sidenote { float: right; clear: right; width: 15rem; margin: -4.5rem -18rem 1rem 0; background: transparent; border-left: 1px solid var(--science); }
}
.pub-body .chart { margin: 1.5rem 0; }
@media (min-width: 1100px) { .pub-body .chart { margin-right: -8rem; } }
.img-grid { list-style: none; margin: 1rem 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .75rem; }
.img-grid figure { margin: 0; }
.img-grid figcaption { font-size: .82rem; margin-top: .35rem; }
.video-facade { margin: 1.5rem 0; }
.vf-play { width: 100%; aspect-ratio: 16 / 9; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: .75rem; background: var(--blue); color: var(--white); border: 0; cursor: pointer; font: 400 1.05rem/1.3 var(--sans); padding: 1rem; }
.vf-icon { width: 4rem; height: 4rem; border: 2px solid var(--white); border-radius: 50%; display: grid; place-items: center; font-size: 1.4rem; }
.vf-play:hover .vf-icon { background: var(--white); color: var(--blue); }
.vf-note { background: var(--white); padding: .8rem 1rem; font-size: .92rem; }

/* network page */
.diagram { margin: 2rem 0 0; background: var(--white); padding: 1rem; }
.diagram .dn { font: 600 12px var(--sans); fill: var(--black); }
.diagram .dk { font: 400 10px var(--mono); fill: #333; text-transform: uppercase; }
.diagram .dw { font: 600 17px var(--sans); fill: var(--white); }
.diagram .dw2 { font: 400 11px var(--mono); fill: var(--white); }
.code { background: var(--black); color: var(--white); padding: 1rem; overflow-x: auto; font: 400 .82rem/1.5 var(--mono); }
.ticks { padding-left: 1.1rem; }
.ticks li { margin-bottom: .4rem; }
.redir code, .contrast code { font: 400 .8rem var(--mono); }

/* footer */
.site-foot { background: var(--black); color: var(--offwhite); padding-top: 2.5rem; }
.site-foot a { color: var(--offwhite); }
.site-foot .mono-label { color: var(--offwhite); }
.site-foot .note { color: var(--black); }
.site-foot .note a { color: var(--blue); }
.site-foot .tbc { color: #c9c9c9; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; }
.foot-title { font-size: 1.5rem; margin: 0 0 .5rem; }
.foot-links { list-style: none; padding: 0; margin: .5rem 0 0; display: grid; gap: .35rem; }
.foot-links a[aria-current] { font-weight: 600; }
.foot-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; border-top: 1px solid rgba(255, 255, 255, .25); margin-top: 2rem; padding-top: 1rem; padding-bottom: 4.5rem; font: 400 .75rem/1.4 var(--mono); text-transform: uppercase; }

@media (max-width: 860px) {
  .hero-grid, .two-col, .grid-lead, .pub-list, .foot-grid { grid-template-columns: minmax(0, 1fr); }
  .hero__art { max-width: 320px; }
  .slide { grid-template-columns: minmax(0, 1fr); }
  .social-grid, .img-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }

/* polish, 28 Oct */
.site-head nav a, .network a { transition: box-shadow .15s ease; }
.mono-link:hover { text-decoration: none; box-shadow: inset 0 -1px 0 currentColor; }
.card--big .card__art { margin: 0 0 1rem; background: var(--grey); }
.card--big .card__art svg { max-height: 300px; margin: 0 auto; }
.filters details { margin-top: .4rem; }
.filters summary { cursor: pointer; font: 400 .74rem/1 var(--mono); text-transform: uppercase; letter-spacing: .04em; color: var(--blue); padding: .5rem 0; display: inline-block; text-decoration: underline; text-underline-offset: .25em; }
.pub-list > li { break-inside: avoid; }
@media (prefers-reduced-motion: reduce) { .site-head nav a, .network a { transition: none; } }