:root {
    --paper: #f3f0e8;
    --paper-deep: #e7e1d5;
    --ink: #18231f;
    --muted: #68716b;
    --forest: #173d32;
    --forest-soft: #275949;
    --clay: #c76743;
    --gold: #d3a841;
    --line: rgba(24, 35, 31, .16);
    --white: #fffdf8;
    font-family: Inter, "Segoe UI", Arial, sans-serif;
    color: var(--ink);
    background: var(--paper);
    font-synthesis: none;
}

* { box-sizing: border-box; }

html { min-height: 100%; background: var(--forest); }

body {
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 85% 8%, rgba(211, 168, 65, .12), transparent 24rem),
        var(--paper);
}

a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 {
    font-family: Georgia, "Times New Roman", serif;
    font-weight: 500;
    letter-spacing: -.035em;
}

h1:focus { outline: none; }

.site-shell { display: grid; grid-template-columns: 248px minmax(0, 1fr); min-height: 100vh; }

.sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 30px 24px 24px;
    color: #f8f4e9;
    background:
        linear-gradient(180deg, rgba(255,255,255,.025), transparent 30%),
        var(--forest);
    border-right: 1px solid rgba(255,255,255,.09);
}

.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 68px; }
.brand-mark {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border: 1px solid rgba(255,255,255,.42);
    border-radius: 50%;
    font: 600 10px/1 Inter, sans-serif;
    letter-spacing: .05em;
}
.brand strong { display: block; font-family: Georgia, serif; font-size: 19px; font-weight: 500; }
.brand small { display: block; max-width: 142px; margin-top: 2px; color: rgba(255,255,255,.55); font-size: 8px; line-height: 1.35; letter-spacing: .07em; text-transform: uppercase; }

.main-nav { display: grid; gap: 2px; }
.main-nav a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 13px 12px;
    color: rgba(255,255,255,.68);
    border-radius: 7px;
    transition: .18s ease;
}
.main-nav a span { width: 20px; color: rgba(255,255,255,.33); font-size: 10px; letter-spacing: .08em; }
.main-nav a:hover { color: #fff; background: rgba(255,255,255,.06); }
.main-nav a.active { color: #fff; background: rgba(255,255,255,.10); }
.main-nav a.active span { color: var(--gold); }

.language-switch {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    margin-top: 28px;
    padding: 4px;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 7px;
}
.language-switch a {
    padding: 7px 8px;
    color: rgba(255,255,255,.55);
    border-radius: 4px;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .12em;
    text-align: center;
}
.language-switch a:hover { color: #fff; }
.language-switch a.active { color: var(--forest); background: var(--gold); }

.sidebar-note {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: auto;
    padding: 14px 12px;
    border-top: 1px solid rgba(255,255,255,.1);
}
.sidebar-note strong, .sidebar-note small { display: block; }
.sidebar-note strong { font-size: 12px; }
.sidebar-note small { margin-top: 4px; color: rgba(255,255,255,.45); font-size: 10px; }
.status-dot { flex: 0 0 auto; width: 7px; height: 7px; margin-top: 4px; border-radius: 50%; background: #83c794; box-shadow: 0 0 0 4px rgba(131,199,148,.12); }

.content { min-width: 0; overflow: hidden; padding: 0 48px 80px; }
.page-topline {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 72px;
    margin-bottom: 42px;
    color: var(--muted);
    border-bottom: 1px solid var(--line);
    font-size: 11px;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.page-topline a:hover { color: var(--forest); }
.catalog-id { font-family: "Cascadia Code", Consolas, monospace; text-transform: none; letter-spacing: 0; }

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(270px, .6fr);
    gap: 60px;
    align-items: end;
    padding: 52px 0 70px;
}
.eyebrow {
    display: block;
    margin-bottom: 18px;
    color: var(--clay);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .18em;
    text-transform: uppercase;
}
.hero h1, .page-intro h1, .detail-hero h1 {
    margin-bottom: 24px;
    font-size: clamp(46px, 6.1vw, 88px);
    line-height: .98;
}
.hero h1 em { color: var(--forest-soft); font-weight: 400; }
.hero-copy > p, .page-intro > p {
    max-width: 660px;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.65;
}
.hero-actions { display: flex; gap: 12px; margin-top: 34px; }
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 20px;
    border: 1px solid var(--line);
    border-radius: 4px;
    font-size: 13px;
    font-weight: 650;
    transition: .18s ease;
}
.button.primary { color: #fff; background: var(--forest); border-color: var(--forest); }
.button.primary:hover { background: var(--forest-soft); transform: translateY(-1px); }
.button.quiet:hover { background: var(--white); }

.hero-range {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 26px 0 8px;
    border-top: 1px solid var(--line);
}
.hero-range > span, .hero-range small { grid-column: 1 / -1; color: var(--muted); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.hero-range strong { font: 400 26px/1 Georgia, serif; }
.range-line { height: 1px; background: var(--line); }
.range-line i { display: block; width: 74%; height: 1px; background: var(--clay); }
.hero-range small { margin-top: 10px; line-height: 1.5; text-transform: none; letter-spacing: 0; }

.metric-strip {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    margin-bottom: 92px;
    background: var(--white);
    border: 1px solid var(--line);
    box-shadow: 0 12px 35px rgba(31,44,38,.045);
}
.metric-strip div { padding: 25px 20px; border-right: 1px solid var(--line); }
.metric-strip div:last-child { border: 0; }
.metric-strip strong, .metric-strip span { display: block; }
.metric-strip strong { margin-bottom: 5px; font: 500 28px/1 Georgia, serif; }
.metric-strip span { color: var(--muted); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }

.section-block { margin-top: 86px; }
.section-heading { display: flex; justify-content: space-between; gap: 40px; align-items: end; margin-bottom: 28px; }
.section-heading.compact { margin-bottom: 22px; }
.section-heading .eyebrow { margin-bottom: 9px; }
.section-heading h2 { margin: 0; font-size: 36px; }
.section-heading > p { max-width: 340px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.5; }

.topic-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.topic-card {
    position: relative;
    min-height: 220px;
    padding: 26px;
    overflow: hidden;
    background: rgba(255,253,248,.45);
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    transition: .2s ease;
}
.topic-card::after {
    content: "";
    position: absolute;
    right: -42px;
    bottom: -72px;
    width: 160px;
    height: 160px;
    border: 1px solid rgba(23,61,50,.1);
    border-radius: 50%;
}
.topic-card:hover { z-index: 1; background: var(--white); transform: translateY(-3px); box-shadow: 0 14px 36px rgba(24,35,31,.08); }
.topic-index { color: var(--clay); font-size: 10px; letter-spacing: .14em; }
.topic-card h3 { max-width: 260px; margin: 44px 0 8px; font-size: 27px; line-height: 1.03; }
.topic-card p { color: var(--muted); font-size: 12px; }
.topic-card footer { position: absolute; left: 26px; right: 26px; bottom: 22px; display: flex; gap: 16px; color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .06em; }
.topic-macro-history { grid-column: span 2; }

.split-section { display: grid; grid-template-columns: 1fr 1fr; gap: 78px; }
.public-notice {
    max-width: 920px;
    padding: 34px 38px;
    background: var(--white);
    border-top: 3px solid var(--gold);
    box-shadow: 0 12px 35px rgba(31,44,38,.045);
}
.public-notice h2 { margin-bottom: 16px; font-size: 34px; }
.public-notice p { max-width: 800px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.geography-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.geography-cloud a, .tag-list > span, .compact-tags > span {
    padding: 8px 11px;
    color: var(--forest);
    background: rgba(39,89,73,.07);
    border: 1px solid rgba(39,89,73,.14);
    border-radius: 999px;
    font-size: 12px;
}
.geography-cloud a:hover { color: #fff; background: var(--forest); }
.geography-cloud sup { color: var(--clay); }
.subtle-note { margin-top: 16px; color: var(--muted); font-size: 12px; }
.ranked-list { border-top: 1px solid var(--line); }
.ranked-list a { display: grid; gap: 5px; padding: 17px 5px; border-bottom: 1px solid var(--line); }
.ranked-list a:hover strong { color: var(--clay); }
.ranked-list strong { font: 500 17px/1.25 Georgia, serif; transition: .15s; }
.ranked-list > a > span:last-child { color: var(--muted); font-size: 11px; }
.rank-topic { color: var(--clay); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; }

.page-intro { max-width: 850px; padding: 30px 0 54px; }
.page-intro h1 { font-size: clamp(48px, 6vw, 80px); }

.explorer-toolbar {
    position: sticky;
    z-index: 5;
    top: 0;
    display: grid;
    grid-template-columns: minmax(240px, 1.5fr) minmax(160px, .6fr) minmax(190px, .8fr) auto;
    gap: 12px;
    align-items: end;
    padding: 18px;
    margin-bottom: 30px;
    background: rgba(243,240,232,.94);
    border: 1px solid var(--line);
    backdrop-filter: blur(12px);
}
.explorer-toolbar label > span { display: block; margin-bottom: 7px; color: var(--muted); font-size: 9px; letter-spacing: .1em; text-transform: uppercase; }
.explorer-toolbar input, .explorer-toolbar select {
    width: 100%;
    height: 42px;
    padding: 0 12px;
    color: var(--ink);
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 3px;
    outline: none;
}
.explorer-toolbar input:focus, .explorer-toolbar select:focus { border-color: var(--forest-soft); box-shadow: 0 0 0 3px rgba(39,89,73,.08); }
.result-count { min-width: 90px; padding: 0 8px 5px; }
.result-count strong, .result-count span { display: block; }
.result-count strong { font: 500 25px/1 Georgia, serif; }
.result-count span { margin-top: 4px; color: var(--muted); font-size: 10px; }

.dataset-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.dataset-card {
    display: flex;
    min-height: 270px;
    flex-direction: column;
    padding: 24px;
    background: var(--white);
    border: 1px solid var(--line);
    transition: .18s ease;
}
.dataset-card:hover { transform: translateY(-3px); box-shadow: 0 14px 34px rgba(24,35,31,.08); border-color: rgba(23,61,50,.3); }
.dataset-card header { display: flex; justify-content: space-between; align-items: center; gap: 12px; color: var(--muted); font-size: 10px; }
.topic-pill { display: inline-flex; width: fit-content; padding: 6px 9px; color: var(--forest); background: rgba(39,89,73,.07); border-radius: 3px; font-size: 9px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.dataset-card h2 { max-width: 520px; margin: 34px 0 12px; font-size: 27px; line-height: 1.08; }
.dataset-geographies { color: var(--muted); font-size: 12px; line-height: 1.55; }
.dataset-card footer { display: flex; align-items: end; gap: 26px; margin-top: auto; padding-top: 22px; border-top: 1px solid var(--line); }
.dataset-card footer div strong, .dataset-card footer div span { display: block; }
.dataset-card footer div strong { font: 500 19px/1 Georgia, serif; }
.dataset-card footer div span { margin-top: 4px; color: var(--muted); font-size: 9px; letter-spacing: .06em; text-transform: uppercase; }
.open-arrow { margin-left: auto; color: var(--clay); font-size: 18px; }

.loading-panel, .error-panel, .empty-panel {
    margin: 60px 0;
    padding: 36px;
    background: var(--white);
    border: 1px solid var(--line);
}
.loading-panel { display: flex; align-items: center; gap: 14px; color: var(--muted); }
.loading-panel p { margin: 0; }
.loading-mark { width: 18px; height: 18px; border: 2px solid var(--line); border-top-color: var(--clay); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.error-panel { border-left: 4px solid var(--clay); }
.error-panel strong { font-family: Georgia, serif; font-size: 23px; }
.error-panel p { margin: 8px 0 0; color: var(--muted); }
.not-found { margin-top: 120px; }
.not-found h1 { font-size: 56px; }

.detail-hero { display: flex; justify-content: space-between; align-items: end; gap: 35px; padding: 35px 0 50px; }
.detail-hero > div { max-width: 900px; }
.detail-hero h1 { margin: 22px 0 14px; font-size: clamp(42px, 5.3vw, 72px); line-height: 1.02; }
.technical-id { color: var(--muted); font: 10px/1.5 "Cascadia Code", Consolas, monospace; word-break: break-all; }
.source-byline { color: var(--muted); font-size: 17px; }

.fact-grid { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--forest); color: #fff; }
.fact-grid div { min-height: 112px; padding: 24px; border-right: 1px solid rgba(255,255,255,.15); }
.fact-grid span, .fact-grid strong { display: block; }
.fact-grid span { margin-bottom: 18px; color: rgba(255,255,255,.53); font-size: 9px; letter-spacing: .1em; text-transform: uppercase; }
.fact-grid strong { font: 500 21px/1.2 Georgia, serif; }

.detail-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; margin-top: 45px; padding-bottom: 45px; border-bottom: 1px solid var(--line); }
.tag-list { display: flex; flex-wrap: wrap; gap: 7px; }
.source-links { display: grid; gap: 5px; }
.source-links a { color: var(--forest-soft); font-size: 12px; word-break: break-all; }
.source-links a:hover { color: var(--clay); }

.column-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 9px; }
.column-card { display: flex; min-height: 150px; flex-direction: column; padding: 17px; background: rgba(255,253,248,.56); border: 1px solid var(--line); }
.column-card.measure { background: var(--white); border-top: 3px solid var(--clay); }
.column-card > span { color: var(--muted); font-size: 8px; letter-spacing: .09em; text-transform: uppercase; }
.column-card strong { margin: 17px 0 7px; font: 500 17px/1.15 Georgia, serif; }
.column-card code, .parameter-list code { color: var(--muted); font-size: 9px; word-break: break-all; }
.column-card small { margin-top: auto; padding-top: 12px; color: var(--muted); font-size: 9px; }

.data-table-wrap { max-height: 610px; overflow: auto; background: var(--white); border: 1px solid var(--line); }
.data-table { width: max-content; min-width: 100%; border-collapse: collapse; font-size: 11px; }
.data-table th { position: sticky; z-index: 2; top: 0; max-width: 240px; padding: 13px 12px; color: #fff; background: var(--forest); border-right: 1px solid rgba(255,255,255,.12); text-align: left; white-space: nowrap; }
.data-table td { max-width: 330px; padding: 10px 12px; overflow: hidden; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-overflow: ellipsis; white-space: nowrap; }
.data-table tbody tr:nth-child(even) { background: rgba(23,61,50,.025); }
.data-table tbody tr:hover { background: rgba(211,168,65,.10); }

.technical-panel { margin-top: 65px; padding: 24px; color: rgba(255,255,255,.78); background: #202824; }
.technical-panel > span { display: block; margin-bottom: 20px; color: var(--gold); font-size: 9px; letter-spacing: .12em; text-transform: uppercase; }
.technical-panel dl { display: grid; grid-template-columns: 130px minmax(0,1fr); gap: 9px 15px; margin: 0; font-size: 10px; }
.technical-panel dt { color: rgba(255,255,255,.42); }
.technical-panel dd { margin: 0; font-family: "Cascadia Code", Consolas, monospace; word-break: break-all; }

.source-toolbar { grid-template-columns: minmax(260px, 1.6fr) minmax(190px, .7fr) auto; }
.source-list { border-top: 1px solid var(--line); }
.source-card { display: grid; grid-template-columns: 100px 1fr 30px; gap: 25px; padding: 27px 10px; border-bottom: 1px solid var(--line); transition: .18s; }
.source-card:hover { padding-left: 18px; background: rgba(255,253,248,.65); }
.source-year { color: var(--clay); font: 500 18px/1 Georgia, serif; }
.compact-tags { margin-bottom: 12px; }
.compact-tags > span { padding: 5px 8px; font-size: 9px; }
.source-card h2 { margin: 0 0 8px; font-size: 25px; line-height: 1.14; }
.source-card p { color: var(--muted); font-size: 12px; }
.source-card footer { display: flex; flex-wrap: wrap; gap: 14px; color: var(--muted); font-size: 9px; letter-spacing: .05em; text-transform: uppercase; }
.source-detail-hero .tag-list { margin-bottom: 18px; }

.citation-block { margin-top: 48px; padding: 28px 34px; background: var(--white); border-left: 4px solid var(--gold); }
.citation-block .eyebrow { margin-bottom: 12px; }
.citation-block blockquote { max-width: 900px; margin: 0; font: 500 20px/1.45 Georgia, serif; }
.artifact-list { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.artifact-list a { display: grid; grid-template-columns: 48px minmax(0,1fr) 20px; gap: 14px; align-items: center; min-height: 78px; padding: 13px; background: var(--white); border: 1px solid var(--line); }
.artifact-list a:hover { border-color: var(--forest-soft); }
.file-icon { display: grid; place-items: center; width: 44px; height: 44px; color: #fff; background: var(--forest-soft); font-size: 9px; font-weight: 700; letter-spacing: .06em; }
.artifact-list strong, .artifact-list div span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.artifact-list strong { font-size: 11px; }
.artifact-list div span { margin-top: 5px; color: var(--muted); font-size: 9px; }
.compact-datasets .dataset-card { min-height: 230px; }

.claim-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.claim-list article { display: flex; min-height: 190px; flex-direction: column; padding: 20px; background: var(--white); border: 1px solid var(--line); }
.claim-list article > p { font: 400 16px/1.45 Georgia, serif; }
.claim-list footer { display: grid; gap: 7px; margin-top: auto; padding-top: 16px; color: var(--muted); border-top: 1px solid var(--line); font-size: 9px; }
.claim-list code { color: var(--muted); font-size: 8px; }

.parameter-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.parameter-list article { padding: 20px; background: var(--white); border: 1px solid var(--line); }
.parameter-list article > div:first-child { display: flex; gap: 12px; align-items: flex-start; }
.measure-dot { flex: 0 0 auto; width: 9px; height: 9px; margin-top: 6px; background: var(--clay); border-radius: 50%; }
.parameter-list h2 { margin: 0 0 4px; font-size: 21px; }
.parameter-list .tag-list { margin: 20px 0 12px; }
.parameter-datasets { display: grid; gap: 6px; padding-top: 13px; border-top: 1px solid var(--line); }
.parameter-datasets a { color: var(--forest-soft); font-size: 10px; }
.parameter-datasets a:hover { color: var(--clay); }

#blazor-error-ui {
    position: fixed;
    z-index: 1000;
    right: 18px;
    bottom: 18px;
    display: none;
    padding: 14px 18px;
    color: #fff;
    background: #872f24;
    box-shadow: 0 8px 30px rgba(0,0,0,.2);
    font-size: 12px;
}
#blazor-error-ui .dismiss { margin-left: 12px; cursor: pointer; }

.valid.modified:not([type=checkbox]) { outline: 1px solid #26b050; }
.invalid { outline: 1px solid #e50000; }
.validation-message { color: #e50000; }

@media (max-width: 1100px) {
    .site-shell { grid-template-columns: 205px minmax(0,1fr); }
    .content { padding-inline: 30px; }
    .hero { gap: 30px; }
    .metric-strip { grid-template-columns: repeat(3, 1fr); }
    .metric-strip div:nth-child(3) { border-right: 0; }
    .topic-grid { grid-template-columns: 1fr 1fr; }
    .topic-macro-history { grid-column: auto; }
    .column-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 780px) {
    .site-shell { display: block; }
    .sidebar { position: static; width: 100%; height: auto; padding: 15px 18px; }
    .brand { margin-bottom: 14px; }
    .brand-mark { width: 35px; height: 35px; }
    .main-nav { display: flex; overflow-x: auto; }
    .main-nav a { flex: 0 0 auto; padding: 9px 10px; font-size: 12px; }
    .main-nav a span, .sidebar-note { display: none; }
    .language-switch { position: absolute; top: 15px; right: 18px; width: 84px; margin: 0; }
    .content { padding: 0 18px 55px; }
    .page-topline { min-height: 56px; margin-bottom: 25px; }
    .catalog-id { display: none; }
    .hero { grid-template-columns: 1fr; padding: 28px 0 48px; }
    .hero h1, .page-intro h1 { font-size: clamp(37px, 11vw, 45px); overflow-wrap: anywhere; }
    .metric-strip { grid-template-columns: 1fr 1fr; margin-bottom: 65px; }
    .metric-strip div { border-bottom: 1px solid var(--line); }
    .topic-grid, .dataset-grid, .split-section, .artifact-list, .claim-list, .parameter-list { grid-template-columns: 1fr; }
    .section-heading { display: block; }
    .section-heading > p { margin-top: 12px; }
    .explorer-toolbar, .source-toolbar { position: static; grid-template-columns: 1fr; }
    .detail-hero { display: block; }
    .detail-hero .button { margin-top: 20px; }
    .fact-grid { grid-template-columns: 1fr 1fr; }
    .fact-grid div:nth-child(2) { border-right: 0; }
    .detail-columns, .column-grid { grid-template-columns: 1fr; }
    .source-card { grid-template-columns: 60px 1fr 20px; gap: 12px; }
    .technical-panel dl { grid-template-columns: 1fr; }
    .public-notice { padding: 26px 24px; }
}