/*
 * Marketing site (/). Layout and sections only; colours, type and spacing come from
 * tokens.css, shared parts (buttons, labels, wordmark) from base.css.
 *
 * Editorial layout: a 12-column grid used asymmetrically (notes in a narrow left
 * column, exhibits in a wide right one), heavy ink rules to open sections, hairlines
 * inside tables, no cards, no shadows, no gradients.
 */
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + var(--space-4)); }
body { background: var(--background); font-size: var(--text-base); line-height: var(--leading-relaxed); }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--space-8); }
h1, h2, h3 { font-family: var(--font-display); font-weight: var(--weight-medium); color: var(--foreground); margin: 0; }
p { margin: 0; }
.muted { color: var(--muted-foreground); }
.strong { font-weight: var(--weight-semibold); }

.text-link { color: var(--brand); text-decoration: underline; text-decoration-color: var(--brand-border); font-weight: var(--weight-medium); }
.text-link:hover { text-decoration-color: currentColor; }
main a:not(.btn):not(.text-link) { color: var(--brand); }

/* ---------- header: plain, solid, one rule ---------- */
.site-header { position: sticky; top: 0; z-index: 20; background: var(--header); border-bottom: 1px solid var(--border); }
.site-header-inner { display: flex; align-items: center; gap: var(--space-10); height: var(--header-height); }
.site-nav { display: flex; gap: var(--space-6); flex: 1; }
.site-nav a, .header-link { color: var(--muted-foreground); text-decoration: none; font-size: var(--text-sm); }
.site-nav a:hover, .header-link:hover { color: var(--foreground); text-decoration: underline; }
.site-header-actions { display: flex; align-items: center; gap: var(--space-6); margin-left: auto; }
.header-call { color: var(--foreground); font-weight: var(--weight-medium); }

/* ---------- opening ---------- */
.opening { padding: var(--space-20) 0 var(--space-16); }
.opening-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-8); row-gap: var(--space-10); align-items: end; }
.opening-copy { grid-column: 1 / span 8; }
.opening-aside { grid-column: 9 / span 4; }
.dateline { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-xs); font-weight: var(--weight-semibold); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--muted-foreground); margin-bottom: var(--space-6); }
.live-mark { width: 7px; height: 7px; border-radius: 50%; background: var(--brand); }
.opening h1 { font-size: var(--text-6xl); line-height: 1.06; letter-spacing: var(--tracking-tighter); text-wrap: balance; max-width: 15em; }
.lede { font-size: var(--text-base); line-height: var(--leading-relaxed); color: var(--muted-foreground); }
.opening-links { display: flex; align-items: center; gap: var(--space-5); flex-wrap: wrap; margin-top: var(--space-6); font-size: var(--text-sm); }

/* ---------- sections ---------- */
.section { padding: var(--space-16) 0 var(--space-20); }
/* A heavy ink rule opens each section, aligned to the text column (not the padding). */
.section-rule > .container::before, #example > .container::before { content: ""; display: block; grid-column: 1 / -1; border-top: 2px solid var(--rule-strong); margin-bottom: var(--space-6); }
.section-head { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-8); margin-bottom: var(--space-12); }
.section-head .kicker { grid-column: 1 / span 3; }
.section-head h2 { grid-column: 4 / span 9; }
.section-head .section-intro { grid-column: 4 / span 7; }
.kicker { font-size: var(--text-xs); font-weight: var(--weight-semibold); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--muted-foreground); padding-top: 0.55em; }
.section h2 { font-size: var(--text-4xl); line-height: 1.12; letter-spacing: var(--tracking-tight); text-wrap: balance; }
.section-intro { margin-top: var(--space-4); color: var(--muted-foreground); max-width: var(--measure); }

/* ---------- worked example: notes left, exhibit right ---------- */
.exhibit { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-8); row-gap: var(--space-5); padding: var(--space-10) 0; border-top: 1px solid var(--border); }
.exhibit-note { grid-column: 1 / span 4; font-size: var(--text-sm); color: var(--muted-foreground); }
.exhibit-note p + p { margin-top: var(--space-3); }
.exhibit-body { grid-column: 5 / span 8; min-width: 0; }
.exhibit-n { font-family: var(--font-display); font-style: italic; font-size: var(--text-3xl); line-height: 1; color: var(--brand); margin-bottom: var(--space-3); }
.exhibit h3 { font-size: var(--text-2xl); line-height: var(--leading-snug); margin-bottom: var(--space-3); }

.code-label { display: flex; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; font-size: var(--text-xs); color: var(--muted-foreground); padding-bottom: var(--space-2); border-bottom: 1px solid var(--rule-strong); }
.code-label span { font-weight: var(--weight-semibold); letter-spacing: var(--tracking-wide); text-transform: uppercase; }
.code-label code { font-size: var(--text-xs); color: var(--foreground); overflow-wrap: anywhere; }
.code { margin: 0; padding: var(--space-5) var(--space-5); background: var(--code-bg); color: var(--code-fg); font-size: 0.8125rem; line-height: 1.65; overflow-x: auto; border-bottom: 1px solid var(--border); }
.code .cm { color: var(--code-muted); }

/* ---------- tables: precise, hairline, numbers right-aligned in tabular figures ---------- */
.table-scroll { overflow-x: auto; }
.table-scroll:focus-visible { border-radius: 0; }
.data-table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); line-height: var(--leading-snug); }
.data-table caption { caption-side: top; text-align: left; font-size: var(--text-xs); color: var(--muted-foreground); padding-bottom: var(--space-2); }
.data-table thead th { text-align: left; font-size: var(--text-2xs); font-weight: var(--weight-semibold); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--muted-foreground); padding: var(--space-2) var(--space-3); border-top: 1px solid var(--rule-strong); border-bottom: 1px solid var(--rule-strong); white-space: nowrap; }
.data-table td, .data-table tbody th { padding: var(--space-3); border-bottom: 1px solid var(--border); vertical-align: top; text-align: left; font-weight: var(--weight-normal); }
.data-table tbody th { font-weight: var(--weight-medium); color: var(--foreground); }
.data-table :is(th, td):first-child { padding-left: 0; }
.data-table :is(th, td):last-child { padding-right: 0; }
.data-table .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.data-table tfoot td { font-size: var(--text-xs); color: var(--muted-foreground); border-bottom: 0; padding-top: var(--space-3); }
.offers-table td:nth-child(2) { min-width: 15rem; }
.offers-table td:last-child { color: var(--muted-foreground); font-size: var(--text-xs); min-width: 12rem; }
.offers-table .pub { display: block; font-size: var(--text-xs); color: var(--muted-foreground); margin-bottom: 2px; }
.offers-table tr.chosen td { background: var(--brand-soft); }
.offers-table tr.chosen td:first-child { box-shadow: inset 2px 0 0 var(--brand); padding-left: var(--space-3); }
.ledger-table { margin-bottom: var(--space-6); }

.events { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr)); border-top: 1px solid var(--border); }
.events li { display: flex; flex-direction: column; gap: 2px; padding: var(--space-3) var(--space-3) var(--space-3) 0; border-bottom: 1px solid var(--border); font-size: var(--text-xs); color: var(--muted-foreground); }
.events code { font-size: var(--text-xs); color: var(--foreground); }

/* ---------- audiences: heading column, then a definition list ---------- */
.audience { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-8); row-gap: var(--space-6); scroll-margin-top: calc(var(--header-height) + var(--space-4)); }
.audience + .audience { margin-top: var(--space-16); padding-top: var(--space-6); border-top: 1px solid var(--border); }
.audience-head { grid-column: 1 / span 5; }
.audience-head h2 { font-size: var(--text-3xl); margin-top: var(--space-3); }
.points { grid-column: 6 / span 7; margin: 0; display: grid; grid-template-columns: 1fr 1fr; column-gap: var(--space-8); row-gap: var(--space-6); }
.points dt { font-weight: var(--weight-semibold); font-size: var(--text-sm); margin-bottom: var(--space-1); }
.points dd { margin: 0; font-size: var(--text-sm); color: var(--muted-foreground); }
.audience-link { grid-column: 6 / span 7; font-size: var(--text-sm); }

/* ---------- status ---------- */
.status-grid .section-head { margin-bottom: var(--space-8); }
.status-table th[scope="row"] { width: 30%; }
.status-table td:nth-child(2) { width: 7rem; }
.status-table td:last-child { color: var(--muted-foreground); }

/* ---------- close ---------- */
.close-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-8); row-gap: var(--space-6); }
.close-grid h2 { grid-column: 1 / span 7; }
.close-grid > div { grid-column: 8 / span 5; color: var(--muted-foreground); }
.close-sign { margin-top: var(--space-4); font-family: var(--font-display); font-style: italic; font-size: var(--text-lg); color: var(--foreground); }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: var(--space-8) 0 var(--space-10); }
.site-footer-inner { display: flex; align-items: baseline; gap: var(--space-8); flex-wrap: wrap; }
.site-footer .wordmark-name { font-size: var(--text-base); }
.footer-nav { display: flex; gap: var(--space-6); flex-wrap: wrap; flex: 1; }
.footer-nav a { color: var(--muted-foreground); text-decoration: none; font-size: var(--text-sm); }
.footer-nav a:hover { color: var(--foreground); text-decoration: underline; }
.footer-note { width: 100%; font-size: var(--text-xs); color: var(--muted-foreground); }
.footer-note a { color: inherit; }

/* ---------- responsive ---------- */
@media (max-width: 1040px) {
  .site-nav { display: none; }
  .opening-copy, .opening-aside { grid-column: 1 / -1; }
  .opening-aside { max-width: var(--measure); }
  .exhibit-note { grid-column: 1 / span 5; }
  .exhibit-body { grid-column: 6 / span 7; }
  .points { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .container { padding: 0 var(--space-5); }
  .opening { padding: var(--space-12) 0 var(--space-10); }
  .opening h1 { font-size: 2.375rem; line-height: 1.1; }
  .section { padding: var(--space-10) 0 var(--space-12); }
  .section h2 { font-size: var(--text-3xl); }
  .section-head, .exhibit, .audience, .close-grid { display: block; }
  .section-head .kicker, .audience-head .kicker { margin-bottom: var(--space-3); padding-top: 0; }
  .section-head { margin-bottom: var(--space-8); }
  .exhibit { padding: var(--space-8) 0; }
  .exhibit-note { margin-bottom: var(--space-5); }
  .exhibit-n { display: inline; margin-right: var(--space-2); font-size: var(--text-2xl); }
  .exhibit h3 { display: inline; font-size: var(--text-xl); }
  .exhibit-note p:not(.exhibit-n) { margin-top: var(--space-3); }
  .audience-head { margin-bottom: var(--space-6); }
  .audience-head h2 { font-size: var(--text-2xl); }
  .points { display: grid; }
  .audience-link { margin-top: var(--space-6); }
  .close-grid > div { margin-top: var(--space-5); }
  .code { padding: var(--space-4); font-size: var(--text-xs); }
  .site-header-actions { gap: var(--space-4); }
  .status-table th[scope="row"] { width: auto; }
  /* The status table stacks: one capability per block. */
  .status-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .status-table, .status-table tbody, .status-table tr, .status-table th, .status-table td { display: block; width: auto !important; }
  .status-table tr { padding: var(--space-3) 0; border-bottom: 1px solid var(--border); }
  .status-table tbody :is(th, td) { border: 0; padding: 2px 0; }
  /* Offers: rank | article | price on one line, relevance and terms beneath. */
  .offers-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .offers-table, .offers-table tbody, .offers-table tfoot, .offers-table caption { display: block; }
  .offers-table tr { display: grid; grid-template-columns: 2.25rem minmax(0, 1fr) auto; column-gap: var(--space-3); row-gap: var(--space-1); padding: var(--space-3) 0; border-bottom: 1px solid var(--border); }
  .offers-table tr.chosen { background: var(--brand-soft); box-shadow: inset 2px 0 0 var(--brand); margin: 0 calc(-1 * var(--space-3)); padding-left: var(--space-3); padding-right: var(--space-3); }
  .offers-table tr.chosen td { background: none; }
  .offers-table tr.chosen td:first-child { box-shadow: none; padding-left: 0; }
  .offers-table td { border: 0; padding: 0 !important; min-width: 0 !important; }
  .offers-table td:nth-child(1) { grid-row: 1 / span 3; text-align: left; }
  .offers-table td:nth-child(2) { grid-column: 2; grid-row: 1; }
  .offers-table td:nth-child(4) { grid-column: 3; grid-row: 1; }
  .offers-table td:nth-child(3) { grid-column: 2 / span 2; grid-row: 2; text-align: left; font-size: var(--text-xs); color: var(--muted-foreground); }
  .offers-table td:nth-child(3)::before { content: "Relevance "; }
  .offers-table td:nth-child(5) { grid-column: 2 / span 2; grid-row: 3; }
  .offers-table tfoot tr { display: block; border: 0; }
  .offers-table tfoot td { display: block; }
  /* Ledger: one label/value line per column. */
  .ledger-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .ledger-table, .ledger-table tbody, .ledger-table tr { display: block; }
  .ledger-table tr { border-top: 1px solid var(--rule-strong); }
  .ledger-table td { display: flex; justify-content: space-between; gap: var(--space-4); padding: var(--space-2) 0 !important; }
  .ledger-table td::before { content: attr(data-label); color: var(--muted-foreground); font-size: var(--text-xs); }
}
@media (max-width: 480px) {
  .wordmark-name { font-size: var(--text-lg); }
  .header-link:not(.header-call) { display: none; }
}

/* The offer the exchange selected (cheapest in the relevance band). */
.offers-table .selected-mark { display: inline-block; margin-left: var(--space-2); font-size: var(--text-2xs); letter-spacing: var(--tracking-wide); text-transform: uppercase; font-weight: var(--weight-semibold); color: var(--brand-ink); }

/* Coverage page (/coverage, rendered by src/http/coverage-page.ts) */
.coverage-table th[scope="row"] { min-width: 16rem; }
.coverage-table .badge { margin-left: var(--space-1); vertical-align: middle; }
.cov-desc { display: block; font-size: var(--text-xs); color: var(--muted-foreground); font-weight: var(--weight-normal); margin-top: 2px; }
.cov-notice { font-size: var(--text-sm); color: var(--muted-foreground); max-width: 48rem; }
.section-head h1 { grid-column: 4 / span 9; }
.section-head .cov-notice, .section-head .cov-json { grid-column: 4 / span 7; }
.coverage-vertical { padding-top: 0; }