:root {
    --paper: #f7fafc;
    --canvas: #e8eef2;
    --ink: #07111f;
    --muted: #516174;
    --rule: #c9d4df;
    --teal: #38bec9;
    --teal-deep: #0b3e4a;
    --gold: #f0d343;
    --navy: #07111f;
    --serif: Georgia, 'Times New Roman', serif;
    --sans: 'Public Sans', 'Segoe UI', Arial, sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--canvas); }
body { margin: 0; color: var(--ink); background: var(--canvas); font-family: var(--sans); font-size: 16px; line-height: 1.55; }
body.viewer-open { overflow: hidden; }
button, a { font: inherit; }
button { cursor: pointer; }
a { color: inherit; }
:focus-visible { outline: 3px solid #ad7a25; outline-offset: 3px; }
.skip-link { position: fixed; z-index: 40; top: -5rem; left: 1rem; padding: .6rem .9rem; background: var(--ink); color: white; }
.skip-link:focus { top: 1rem; }

.gallery-shell { max-width: 1440px; margin: 0 auto; padding: 26px clamp(20px, 5vw, 72px) 72px; }
.masthead { padding: clamp(36px, 9vw, 112px) 0 clamp(42px, 7vw, 86px); border-bottom: 1px solid var(--ink); }
.wordmark { display: inline-flex; align-items: baseline; gap: .55rem; color: var(--navy); font-family: var(--serif); font-size: 1.55rem; font-weight: 700; letter-spacing: -.06em; text-decoration: none; }
.wordmark span { color: var(--teal-deep); font-family: var(--sans); font-size: .7rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow { margin: 2rem 0 .6rem; color: var(--teal); font-size: .7rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
.masthead h1, .catalogue h2 { max-width: 840px; margin: 0; font-family: var(--serif); font-size: clamp(2.8rem, 7.3vw, 6.8rem); font-weight: 500; line-height: .94; letter-spacing: -.062em; }
.masthead-copy { max-width: 620px; margin: 2rem 0 0; color: #33465b; font-size: clamp(1rem, 1.7vw, 1.22rem); }
.masthead-meta { display: flex; flex-wrap: wrap; gap: .5rem 1.1rem; margin-top: 2rem; color: var(--muted); font-size: .8rem; }
.masthead-meta span + span::before { content: '•'; margin-right: 1.1rem; color: var(--teal); }

.catalogue { padding-top: clamp(42px, 7vw, 86px); }
.catalogue-heading { display: grid; gap: 1rem; grid-template-columns: minmax(180px, .55fr) minmax(0, 1.45fr); align-items: end; }
.catalogue-heading .eyebrow { margin: 0 0 .2rem; }
.catalogue h2 { font-size: clamp(2rem, 4vw, 4.3rem); }
.filter-row { display: flex; flex-wrap: wrap; gap: .5rem; margin: 3rem 0 1.6rem; }
.filter { min-height: 44px; padding: .5rem .8rem; border: 1px solid var(--rule); border-radius: 2px; color: var(--ink); background: transparent; font-size: .78rem; font-weight: 600; transition: color 160ms ease, background 160ms ease, border-color 160ms ease; }
.filter span { margin-left: .25rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.filter:hover, .filter.is-active { border-color: var(--teal-deep); background: var(--teal-deep); color: #fff; }
.filter.is-active span { color: #d8e4e1; }

.brief-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; }
.brief-card { grid-column: span 4; display: flex; flex-direction: column; min-height: 420px; padding: 17px; border: 1px solid var(--rule); background: var(--paper); transition: transform 180ms ease, box-shadow 180ms ease; }
.brief-card:hover { transform: translateY(-3px); box-shadow: 0 10px 22px rgb(27 38 43 / 9%); }
.brief-card[data-overlay="seam"] { border-top: 4px solid #7d9da1; }
.brief-card[data-overlay="capacity"] { border-top: 4px solid #b48650; }
.brief-card[data-overlay="facility"] { border-top: 4px solid #8a7072; }
.brief-card[data-overlay="mobility"], .brief-card[data-overlay="corridor"] { border-top: 4px solid #477890; }
.brief-card[data-overlay="access"], .brief-card[data-overlay="civic"] { border-top: 4px solid #39705e; }
.card-index { margin: 0 0 .8rem; color: var(--muted); font-size: .68rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.brief-card h3 { margin: 0; font-family: var(--serif); font-size: 1.55rem; font-weight: 500; line-height: 1.02; letter-spacing: -.04em; }
.card-incident { min-height: 4.8em; margin: .9rem 0 1rem; color: #48575d; font-size: .82rem; line-height: 1.48; }
.card-figure { position: relative; display: grid; min-height: 128px; margin: auto 0 1rem; overflow: hidden; border: 1px solid var(--rule); background: #d8dfdf; }
.card-figure img { width: 100%; height: 128px; object-fit: cover; filter: saturate(.78) contrast(.94); }
.card-figure .spark-map-figure { min-height: 0; grid-template-columns: minmax(0, 1fr); }
.card-figure .spark-map-figure__map { border-right: 0; }
.card-figure .spark-map-figure__canvas { height: auto; min-height: 0; aspect-ratio: 16 / 9; }
.card-map-key { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .35rem .65rem; padding: .6rem .65rem; border-top: 1px solid #CBD5E1; color: #0F172A; background: #FFFFFF; font-size: .62rem; line-height: 1.25; }
.card-map-key strong { grid-column: 1 / -1; color: #0B5F63; font: 700 .56rem/1.2 'Fira Code', monospace; letter-spacing: .08em; text-transform: uppercase; }
.card-map-key span { display: grid; grid-template-columns: 19px minmax(0, 1fr); gap: .35rem; align-items: center; }
.card-map-key i { display: grid; width: 18px; height: 18px; place-items: center; border: 2px solid var(--marker); border-radius: 50%; color: #0F172A; background: #FFFFFF; font: 800 .54rem/1 var(--sans); font-style: normal; }
.card-figure.is-pending::after { content: 'Case-specific SparkMap capture queued'; position: absolute; inset: auto 0 0; padding: .42rem .6rem; background: rgb(18 63 67 / 92%); color: white; font-size: .67rem; font-weight: 600; letter-spacing: .03em; }
.card-question { margin: 0 0 1rem; font-size: .82rem; font-weight: 600; line-height: 1.4; }
.card-question span { display: block; margin-bottom: .25rem; color: var(--teal-deep); font: 700 .62rem/1.2 'Fira Code', monospace; letter-spacing: .07em; text-transform: uppercase; }
.card-action { display: flex; justify-content: space-between; align-items: center; width: 100%; min-height: 44px; margin-top: auto; padding: .45rem 0 0; border: 0; border-top: 1px solid var(--rule); color: var(--teal-deep); background: transparent; font-size: .8rem; font-weight: 700; text-align: left; }
.card-action::after { content: 'View brief'; font-weight: 500; }

.brief-viewer { position: fixed; z-index: 30; inset: 0; overflow: auto; padding: clamp(14px, 4vw, 58px); background: rgb(16 24 27 / 72%); }
.brief-viewer--drawer { display: block; padding: 0; overflow: hidden; background: rgb(7 17 31 / 62%); }
.brief-drawer { display: flex; flex-direction: column; width: min(820px, calc(100vw - 32px)); height: 100%; margin: 0 auto; overflow: auto; background: var(--paper); box-shadow: 0 20px 55px rgb(0 0 0 / 22%); }
.viewer-tools { position: sticky; z-index: 2; top: 0; display: flex; justify-content: flex-end; gap: .5rem; max-width: 1120px; margin: 0 auto .8rem; }
.brief-viewer--drawer .viewer-tools { flex: 0 0 auto; position: sticky; top: 0; justify-content: flex-start; max-width: none; margin: 0; padding: 12px 18px; background: #FFFFFF; border-bottom: 1px solid var(--rule); }
.tool-button { min-height: 44px; padding: .45rem .8rem; border: 1px solid #e9eeee; background: #fff; color: var(--teal-deep); font-size: .78rem; font-weight: 700; }
.tool-button.primary { border-color: var(--teal-deep); background: var(--teal-deep); color: #fff; }
.handout { max-width: 1120px; margin: 0 auto; box-shadow: 0 20px 55px rgb(0 0 0 / 22%); }
.brief-viewer--drawer .handout { width: 100%; max-width: none; min-height: 0; margin: 0; box-shadow: none; }
.handout-page { min-height: 680px; padding: clamp(26px, 5vw, 72px); background: var(--paper); }
.handout-page + .handout-page { border-top: 10px solid var(--canvas); }
.handout-topline { display: flex; justify-content: space-between; gap: 1rem; padding-bottom: 1rem; border-bottom: 1px solid var(--rule); color: var(--muted); font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.handout h2 { max-width: 800px; margin: 2.2rem 0 1rem; font-family: var(--serif); font-size: clamp(2.3rem, 5vw, 4.8rem); font-weight: 500; line-height: .98; letter-spacing: -.06em; }
.handout-summary { max-width: 780px; margin: 0 0 2rem; color: #425157; font-size: 1.05rem; }
.brief-context { max-width: 780px; margin: -1rem 0 1.5rem; padding: .75rem 0 .75rem 1rem; border-left: 3px solid var(--gold); color: var(--muted); font-size: .8rem; }
.brief-context .claim-label { margin-right: .55rem; color: var(--teal-deep); }
.evidence-figure { margin: 0; border: 1px solid var(--rule); background: #d8dfdf; }
.evidence-figure img, .evidence-figure canvas { display: block; width: 100%; max-height: 440px; object-fit: cover; }
.evidence-figure img.spark-map-figure__python-map { max-height: none; object-fit: contain; }
.spark-map-figure { position: relative; display: grid; grid-template-columns: minmax(0, 1fr); overflow: hidden; background: #F8FAFC; }
.spark-map-figure__map { position: relative; min-width: 0; overflow: hidden; }
.map-figure-legend { position: static; z-index: auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .3rem .8rem; width: auto; max-height: none; overflow: visible; padding: .65rem .75rem; border-top: 1px solid #CBD5E1; color: #0F172A; background: #F8FAFC; box-shadow: none; font-size: .63rem; line-height: 1.25; }
.map-figure-legend strong { grid-column: 1 / -1; color: #0F172A; font: 700 .58rem/1.2 'Fira Code', monospace; letter-spacing: .08em; text-transform: uppercase; }
.map-figure-legend__item, .map-figure-legend__scale { display: flex; align-items: flex-start; gap: .45rem; }
.map-figure-legend__swatch { display: inline-block; flex: 0 0 auto; width: 19px; height: 3px; margin-top: .34em; background: var(--swatch); }
.map-figure-legend__swatch--point { width: 9px; height: 9px; margin-top: .18em; border-radius: 50%; }
.map-figure-legend__swatch--polygon { height: 10px; margin-top: .1em; border: 1px solid var(--swatch); opacity: .72; }
.map-figure-legend__scale span { display: inline-block; width: 34px; height: 5px; margin-top: .25em; border-right: 1px solid #0F172A; border-left: 1px solid #0F172A; border-bottom: 2px solid #0F172A; }
.card-figure .map-figure-legend { display: none; }
.spark-map-figure img { display: block; width: 100%; height: auto; min-height: 180px; object-fit: cover; }
.spark-map-figure__canvas { display: block; width: 100%; height: auto; min-height: 180px; background: #F8FAFC; }
.spark-map-figure__number { fill: #0F172A; stroke: #FFFFFF; stroke-width: 2.5px; font: 800 8px/1 var(--sans); paint-order: stroke fill; }
.spark-map-figure__measure text, .spark-map-figure__north text { fill: #0F172A; stroke: #FFFFFF; stroke-width: 2.5px; paint-order: stroke fill; font: 700 8px/1 var(--sans); }
.spark-map-figure__step { fill: #0F172A; stroke: none; font: 600 8px/1 var(--sans); }
.spark-map-figure__badge { position: absolute; top: .7rem; left: .7rem; padding: .26rem .42rem; color: #F8FAFC; background: rgb(7 17 31 / 86%); font: 700 .58rem/1.2 'Fira Code', monospace; letter-spacing: .06em; text-transform: uppercase; }
.figure-legend { display: grid; gap: .32rem; margin-top: auto; padding: .65rem .8rem; color: #0F172A; background: #F8FAFC; border-top: 1px solid #CBD5E1; font-size: .59rem; line-height: 1.25; }
.figure-legend strong { color: #0F172A; font: 700 .58rem/1.2 'Fira Code', monospace; letter-spacing: .08em; text-transform: uppercase; }
.figure-legend__item, .figure-legend__scale { display: flex; align-items: center; gap: .45rem; }
.figure-legend__swatch { display: inline-block; flex: 0 0 auto; width: 18px; height: 3px; background: var(--swatch); }
.figure-legend__swatch--point { width: 9px; height: 9px; border-radius: 50%; }
.figure-legend__scale span { display: inline-block; width: 34px; height: 5px; border-right: 1px solid #0F172A; border-left: 1px solid #0F172A; border-bottom: 2px solid #0F172A; }
.figure-legend__scale em { font-style: normal; }
.spark-map-figure--dark .figure-legend { color: #F8FAFC; background: rgb(11 18 32 / 92%); border-color: rgb(255 255 255 / 18%); }
.spark-map-figure--dark .figure-legend strong { color: #F8FAFC; }
.evidence-figure.is-pending { min-height: 270px; position: relative; }
.evidence-figure.is-pending::after { content: 'This case-specific SparkMap evidence capture will appear here after the guided route is published.'; position: absolute; inset: auto 0 0; padding: .8rem 1rem; background: var(--teal-deep); color: #fff; font-size: .8rem; }
.evidence-figure figcaption { padding: .8rem 1rem; border-top: 1px solid var(--rule); color: #4d5b60; font-size: .78rem; }
.claim-label { display: inline-block; margin-bottom: .35rem; color: var(--teal); font-size: .67rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
.claim-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2rem; }
.claim { padding-top: .85rem; border-top: 2px solid var(--teal); font-size: .86rem; }
.handout .spark-evidence-chart { width: 100%; max-width: none; margin: 2rem 0 0; padding: 1rem; border: 1px solid #CBD5E1; background: #F8FAFC; }
.handout .spark-evidence-chart__topline { display: flex; justify-content: space-between; gap: .8rem; margin-bottom: .25rem; }
.handout .spark-evidence-chart__type, .handout .spark-evidence-chart__source { color: #0F172A; font: 700 .62rem/1.25 'Fira Code', monospace; letter-spacing: .08em; text-transform: uppercase; }
.handout .spark-evidence-chart__source { max-width: 60%; overflow: hidden; color: #0F172A; font-weight: 400; text-align: right; text-overflow: ellipsis; white-space: nowrap; }
.spark-evidence-chart__issue { margin: .55rem 0 .75rem; padding: .7rem .8rem; border-left: 3px solid #B66B14; color: #0F172A; background: #FFFFFF; }
.spark-evidence-chart__issue > strong { display: block; color: #0B5F63; font: 800 .58rem/1.2 'Fira Code', monospace; letter-spacing: .08em; text-transform: uppercase; }
.spark-evidence-chart__issue p { margin: .3rem 0; font-size: .72rem; line-height: 1.35; }
.spark-evidence-chart__issue small { display: block; color: #475569; font-size: .58rem; line-height: 1.3; }
.spark-evidence-chart__issue-metrics { display: flex; flex-wrap: wrap; gap: .45rem; margin: .55rem 0; }
.spark-evidence-chart__issue-metrics span { display: grid; min-width: 118px; padding: .45rem .55rem; border: 1px solid #CBD5E1; background: #F8FAFC; color: #334155; font-size: .61rem; line-height: 1.2; }
.spark-evidence-chart__issue-metrics b { color: #0F172A; font: 800 1.05rem/1 var(--serif); }
.handout .spark-evidence-chart[data-chart-theme="print"] svg text { fill: #0F172A !important; }
.handout .spark-evidence-chart__svg { display: block; width: 100%; height: auto; }
.spark-evidence-chart__asset { display: block; width: 100%; height: auto; margin: .85rem 0 .35rem; border: 1px solid #D9E2E8; background: #FFFFFF; }
.spark-evidence-instrument { margin: .85rem 0 .35rem; }
.spark-evidence-instrument ol { display: grid; gap: .55rem; margin: 0; padding: 0; list-style: none; }
.spark-evidence-instrument li { display: grid; grid-template-columns: 42px minmax(0, 1fr) auto; gap: .75rem; align-items: start; padding: .8rem; border: 1px solid #CBD5E1; background: #FFFFFF; }
.spark-evidence-instrument__marker { display: grid; width: 34px; height: 34px; place-items: center; border: 2px solid #0B6E75; border-radius: 50%; color: #0F2742; font-weight: 800; }
.spark-evidence-instrument strong { display: block; color: #0F2742; font-size: .82rem; }
.spark-evidence-instrument p { max-width: 68ch; margin: .2rem 0 0; color: #425466; font-size: .72rem; line-height: 1.45; }
.spark-evidence-instrument__state { align-self: center; padding: .28rem .45rem; border: 1px solid #A85D00; color: #7C4500; background: #FFF8E8; font-size: .62rem; font-weight: 750; white-space: nowrap; }
.spark-evidence-instrument--audit-matrix ol, .spark-evidence-instrument--verification-matrix ol { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.spark-evidence-instrument--audit-matrix li, .spark-evidence-instrument--verification-matrix li { grid-template-columns: 34px minmax(0, 1fr); }
.spark-evidence-instrument--audit-matrix .spark-evidence-instrument__state, .spark-evidence-instrument--verification-matrix .spark-evidence-instrument__state { grid-column: 1 / -1; justify-self: start; }
.handout .spark-evidence-chart__method { margin: .35rem 0 0; padding-top: .45rem; border-top: 1px solid #E2E8F0; color: #334155; font-size: .62rem; line-height: 1.35; }
.spark-evidence-chart__scope { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .55rem; margin-top: .65rem; }
.spark-evidence-chart__scope > div { padding: .55rem .65rem; border: 1px solid #CBD5E1; background: #FFFFFF; }
.spark-evidence-chart__scope strong { display: block; color: #0B5F63; font: 800 .57rem/1.2 'Fira Code', monospace; letter-spacing: .06em; text-transform: uppercase; }
.spark-evidence-chart__scope p { margin: .25rem 0 0; color: #334155; font-size: .64rem; line-height: 1.35; }
.spark-evidence-chart__key { display: grid; gap: .38rem; margin-top: .65rem; padding-top: .65rem; border-top: 1px solid #E2E8F0; }
.spark-evidence-chart__key-row { display: grid; grid-template-columns: 30px minmax(0, 1fr) auto; gap: .55rem; align-items: center; min-height: 28px; color: #0F172A; font-size: .68rem; line-height: 1.25; }
.spark-evidence-chart__key-row[role="button"] { cursor: pointer; }
.spark-evidence-chart__key-marker { display: grid; width: 26px; height: 22px; place-items: center; border: 2px solid var(--datum-color, #4966A1); border-radius: 12px; background: #FFFFFF; color: #0F172A; font: 800 .58rem/1 var(--sans); }
.spark-evidence-chart__key-label { min-width: 0; font-weight: 650; }
.spark-evidence-chart__key-label small { display: block; margin-top: .08rem; color: #64748B; font-weight: 400; }
.spark-evidence-chart__key-value { color: #0F172A; font-variant-numeric: tabular-nums; font-weight: 800; text-align: right; white-space: nowrap; }
.handout .spark-evidence-chart [data-chart-node] { cursor: pointer; outline: none; transition: filter 160ms ease; }
.handout .spark-evidence-chart [data-chart-node]:hover, .handout .spark-evidence-chart [data-chart-node]:focus-visible, .handout .spark-evidence-chart [data-chart-node].is-chart-active { filter: brightness(1.18) drop-shadow(0 0 4px rgb(31 94 99 / 35%)); }
.page-two-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(1.8rem, 6vw, 5rem); margin-top: 2rem; }
.handout h3 { margin: 0 0 .7rem; font-family: var(--serif); font-size: 1.55rem; font-weight: 500; letter-spacing: -.035em; }
.recommendation { margin: 0 0 .8rem; padding: 1rem; border-left: 3px solid var(--teal); background: #edf2f0; font-size: .9rem; }
.source-list { margin: 0; padding: 0; list-style: none; }
.source-list li + li { margin-top: .8rem; }
.source-list a { color: var(--teal-deep); font-size: .84rem; font-weight: 700; text-decoration-thickness: 1px; text-underline-offset: .18em; }
.source-list small { display: block; color: var(--muted); font-size: .74rem; }
.method-note { margin: 2rem 0 0; padding-top: 1rem; border-top: 1px solid var(--rule); color: var(--muted); font-size: .76rem; }

@media (max-width: 980px) { .brief-card { grid-column: span 6; } .catalogue-heading { grid-template-columns: 1fr; } .claim-grid, .page-two-grid { grid-template-columns: 1fr; } }
@media (max-width: 620px) { .gallery-shell { padding-inline: 16px; } .masthead h1 { font-size: clamp(2.7rem, 14vw, 4.5rem); } .brief-grid { gap: 12px; } .brief-card { grid-column: span 12; min-height: 360px; } .handout-page { min-height: 0; padding-inline: 18px; } .handout h2 { font-size: 2.5rem; } .viewer-tools { justify-content: stretch; } .tool-button { flex: 1; } .brief-drawer { width: 100%; margin: 0; } .brief-viewer--drawer .handout { width: 100%; max-width: none; } .spark-map-figure { grid-template-columns: 1fr; } .spark-map-figure__map { border-right: 0; border-bottom: 1px solid #CBD5E1; } .map-figure-legend { grid-template-columns: 1fr; } .spark-evidence-instrument--audit-matrix ol, .spark-evidence-instrument--verification-matrix ol { grid-template-columns: 1fr; } .spark-evidence-instrument li { grid-template-columns: 38px minmax(0, 1fr); } .spark-evidence-instrument__state { grid-column: 1 / -1; justify-self: start; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; } }
@media print { @page { size: letter; margin: .35in; } body { color: #0F172A; background: white; } .gallery-shell, .viewer-tools { display: none !important; } .brief-viewer, .brief-viewer--drawer { position: static; display: block !important; overflow: visible; padding: 0; background: white; } .brief-drawer { display: block; width: auto; height: auto; margin: 0; overflow: visible; box-shadow: none; } .handout, .brief-viewer--drawer .handout { width: auto; max-width: none; min-height: 0; box-shadow: none; } .handout-page { min-height: 0; padding: .18in; break-after: page; background: #FFFFFF; color: #0F172A; } .handout-page + .handout-page { border-top: 0; } .handout .spark-evidence-chart, .recommendation { background: #F8FAFC; } .handout .spark-evidence-chart__svg text, .handout .spark-evidence-chart__topline, .handout .spark-evidence-chart__type, .handout .spark-evidence-chart__source, .handout .handout-topline, .handout .brief-context, .handout .evidence-figure figcaption, .handout .method-note { color: #0F172A; } .spark-map-figure--print .spark-map-figure__badge, .map-figure-legend, .figure-legend { color: #0F172A; background: #FFFFFF; } }