:root {
  --paper: #f6f5f1;
  --card: #fffefb;
  --ink: #16181d;
  --ink-soft: #5c6069;
  --ink-faint: #8e929b;
  --rule: #dedbd2;
  --rule-strong: #c3bfb2;
  --accent: #1f3ad6;
  --accent-soft: #eaecfb;
  --debit: #b4441f;
  --credit: #1b6b3a;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: ui-sans-serif, -apple-system, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.wrap { width: min(1180px, 100% - 3rem); margin-inline: auto; }

/* ---------- masthead ---------- */

.masthead {
  border-bottom: 1px solid var(--rule);
  background: var(--card);
  position: sticky;
  top: 0;
  z-index: 20;
}
.masthead__inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: .85rem 0; }
.brand { display: inline-flex; align-items: center; gap: .55rem; text-decoration: none; font-weight: 800; letter-spacing: -.02em; font-size: 1.18rem; }
.brand__mark { width: 22px; height: 22px; }
.brand__host { font: 500 .7rem/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); padding-left: .55rem; border-left: 1px solid var(--rule); margin-left: .1rem; }
.nav { display: flex; gap: 1.6rem; font: 500 .82rem/1 var(--sans); }
.nav a { text-decoration: none; color: var(--ink-soft); }
.nav a:hover { color: var(--accent); }

/* ---------- hero ---------- */

.hero { padding: 4.5rem 0 3rem; border-bottom: 1px solid var(--rule); }
.hero__grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 4rem; align-items: start; }
.eyebrow { font: 500 .72rem/1 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--accent); margin: 0 0 1.1rem; }
h1 { font-size: clamp(2.6rem, 6vw, 4.1rem); line-height: 1.02; letter-spacing: -.035em; margin: 0 0 1.2rem; font-weight: 800; }
h1 em { font-style: normal; color: var(--accent); }
.lede { font-size: 1.06rem; color: var(--ink-soft); margin: 0 0 1.6rem; max-width: 46ch; }
.lede strong { color: var(--ink); font-weight: 600; }
.cta { display: inline-flex; align-items: center; gap: .5rem; background: var(--ink); color: var(--paper); text-decoration: none; padding: .7rem 1.25rem; font-weight: 600; font-size: .9rem; border-radius: 2px; }
.cta:hover { background: var(--accent); }

/* ---------- exchange diagram ---------- */

.diagram { background: var(--card); border: 1px solid var(--rule); padding: 1.5rem; }
.diagram svg { width: 100%; height: auto; display: block; }
.diagram__note { font: 400 .78rem/1.5 var(--sans); color: var(--ink-soft); margin: 1rem 0 0; padding-top: 1rem; border-top: 1px solid var(--rule); }

/* ---------- numbers ---------- */

.figures { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); border-top: 1px solid var(--rule); }
.figure { padding: 1.6rem 1.5rem 1.7rem; border-right: 1px solid var(--rule); }
.figure:last-child { border-right: 0; }
.figure__value { font: 700 2.3rem/1 var(--mono); letter-spacing: -.04em; display: block; }
.figure__label { font: 500 .7rem/1.4 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); margin-top: .55rem; display: block; }

/* ---------- sections ---------- */

section { padding: 3.5rem 0; border-bottom: 1px solid var(--rule); }
.section__head { display: flex; align-items: baseline; justify-content: space-between; gap: 1.5rem; margin-bottom: 1.6rem; }
h2 { font-size: 1.05rem; margin: 0; letter-spacing: -.01em; font-weight: 700; }
.section__note { font: 400 .8rem/1.5 var(--sans); color: var(--ink-faint); margin: 0; max-width: 52ch; }

/* ---------- ticker ---------- */

.ticker { background: var(--card); border: 1px solid var(--rule); max-height: 340px; overflow: hidden; }
.ticker__row { display: grid; grid-template-columns: 72px minmax(0, 1fr) auto; gap: 1rem; align-items: baseline; padding: .6rem 1.1rem; border-bottom: 1px solid var(--rule); font-size: .84rem; }
.ticker__row:last-child { border-bottom: 0; }
.ticker__time { font: 400 .74rem/1 var(--mono); color: var(--ink-faint); }
.ticker__flow { font: 500 .8rem/1.3 var(--mono); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ticker__flow span { color: var(--accent); padding: 0 .3rem; }
.ticker__title { color: var(--ink-soft); font-size: .8rem; max-width: 42ch; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ticker__empty { padding: 2.2rem 1.2rem; color: var(--ink-faint); font-size: .88rem; text-align: center; }

/* ---------- ledger ---------- */

.ledger { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--rule); font-size: .86rem; }
.ledger th { text-align: right; font: 500 .68rem/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-faint); padding: .85rem 1rem; border-bottom: 1px solid var(--rule-strong); white-space: nowrap; }
.ledger th:first-child, .ledger td:first-child { text-align: left; }
.ledger td { padding: .7rem 1rem; border-bottom: 1px solid var(--rule); text-align: right; font-family: var(--mono); font-size: .82rem; white-space: nowrap; }
.ledger tr:last-child td { border-bottom: 0; }
.ledger td:first-child { font-family: var(--sans); font-size: .88rem; }
.ledger a { text-decoration: none; font-weight: 600; }
.ledger a:hover { color: var(--accent); text-decoration: underline; }
.ledger .lang { display: inline-block; font: 500 .66rem/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); background: var(--accent-soft); padding: .25rem .4rem; border-radius: 2px; margin-left: .5rem; }
.pos { color: var(--credit); }
.neg { color: var(--debit); }
.zero { color: var(--ink-faint); }
.scroller { overflow-x: auto; }

/* ---------- rules & snippet ---------- */

.rules { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.rule { background: var(--card); padding: 1.4rem 1.3rem; }
.rule h3 { margin: 0 0 .5rem; font-size: .9rem; font-weight: 700; }
.rule p { margin: 0; font-size: .84rem; color: var(--ink-soft); line-height: 1.5; }
.rule__index { font: 500 .7rem/1 var(--mono); color: var(--accent); display: block; margin-bottom: .8rem; letter-spacing: .1em; }

pre.snippet { background: var(--ink); color: #eceadf; padding: 1.2rem 1.3rem; overflow-x: auto; font: 400 .82rem/1.65 var(--mono); border-radius: 2px; margin: 0; }
pre.snippet .attr { color: #9fb4ff; }
pre.snippet .val { color: #ffd8a8; }

/* ---------- footer ---------- */

footer { padding: 2.5rem 0 3.5rem; font-size: .82rem; color: var(--ink-soft); }
.footer__grid { display: flex; flex-wrap: wrap; gap: 1.5rem 2.5rem; justify-content: space-between; align-items: baseline; }
footer a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--rule-strong); }
footer a:hover { color: var(--accent); }

/* ---------- publisher page ---------- */

.p-head { padding: 3rem 0 2rem; border-bottom: 1px solid var(--rule); }
.p-title { font-size: clamp(1.9rem, 4vw, 2.7rem); letter-spacing: -.03em; margin: .3rem 0 .6rem; font-weight: 800; }
.key { font: 500 .82rem/1 var(--mono); background: var(--accent-soft); color: var(--accent); padding: .5rem .7rem; border-radius: 2px; display: inline-block; user-select: all; }
.columns { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2.5rem; }
.list { list-style: none; margin: 0; padding: 0; }
.list li { display: flex; justify-content: space-between; gap: 1rem; padding: .5rem 0; border-bottom: 1px solid var(--rule); font-size: .86rem; }
.list li span:last-child { font-family: var(--mono); color: var(--ink-soft); }

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .rules { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 3rem 0 2.5rem; }
  .figure { border-right: 0; border-bottom: 1px solid var(--rule); }
  .ticker__row { grid-template-columns: 60px minmax(0, 1fr); }
  .rules { grid-template-columns: 1fr; }
  .ticker__title { display: none; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #101216;
    --card: #171a20;
    --ink: #eceef2;
    --ink-soft: #a4a9b4;
    --ink-faint: #767c88;
    --rule: #262a33;
    --rule-strong: #363c48;
    --accent: #8ea2ff;
    --accent-soft: #1c2233;
    --debit: #e8825c;
    --credit: #6cc38d;
  }
  .cta { background: var(--accent); color: #0d1017; }
  .cta:hover { background: #b3c1ff; }
  pre.snippet { background: #090b0f; }
}

/* The language tag is a code, not a headline — uppercasing it next to a country
   turns "uk" into the United Kingdom. */
.eyebrow .code { text-transform: none; }