/* ============================================================
   THE EXCHANGE DESK — design tokens
   ============================================================ */
:root {
  --ink:          #12203A;   /* deep navy — dark sections, nav */
  --ledger:       #0F3D2E;   /* deep green — secondary dark */
  --paper:        #EDEFEA;   /* pale sage paper — page background */
  --paper-raised: #FFFFFF;   /* card surfaces */
  --brass:        #C9A227;   /* gold accent — primary CTA / highlight */
  --brass-dim:    #A6871F;
  --rate-up:      #3FA796;
  --rate-down:    #C1443C;
  --ink-soft:     #48566E;   /* muted body text on paper */
  --ink-faint:    #8B96A8;   /* captions, timestamps */
  --hairline:     #D6D9CD;

  --font-display: 'Fraunces', Georgia, serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius: 10px;
  --radius-sm: 6px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 8px -2px rgba(18,32,58,0.10);
  --shadow-md: 0 12px 28px -12px rgba(18,32,58,0.22);
  --shadow-lg: 0 28px 64px -20px rgba(10,18,32,0.45);
  --max-width: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Skip link / focus ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--brass);
  color: var(--ink);
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 2px;
}

/* ---------- Top nav ---------- */
.site-header {
  background: rgba(18,32,58,0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--paper);
  border-bottom: 3px solid var(--brass);
  position: sticky;
  top: 0;
  z-index: 50;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  max-width: var(--max-width);
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 12px;
}
.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: var(--paper);
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.brand .mark {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--brass);
  border: 1px solid var(--brass);
  padding: 2px 6px;
  border-radius: var(--radius);
  letter-spacing: 0.08em;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
}
.nav-links a {
  text-decoration: none;
  color: var(--paper);
  opacity: 0.82;
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
  transition: opacity 0.15s ease, border-color 0.15s ease;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  opacity: 1;
  border-color: var(--brass);
}

/* ---------- Hero / converter ---------- */
.hero {
  background:
    radial-gradient(ellipse 640px 420px at 82% -10%, rgba(201,162,39,0.16), transparent 60%),
    radial-gradient(ellipse 500px 400px at -5% 110%, rgba(63,167,150,0.10), transparent 60%),
    var(--ink);
  color: var(--paper);
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 14px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4vw, 3rem);
  line-height: 1.12;
  margin: 0 0 18px;
  font-weight: 600;
}
.hero p.lead {
  color: #C7CEDB;
  font-size: 1.05rem;
  max-width: 46ch;
  margin: 0 0 8px;
}
.hero .updated {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin-top: 18px;
}
.hero .updated .dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--rate-up);
  margin-right: 7px;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ---------- Split-flap converter card ---------- */
.converter {
  background: #0A1626;
  border: 1px solid #24365A;
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  box-shadow: 0 0 0 1px rgba(201,162,39,0.06), var(--shadow-lg);
}
.converter::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: var(--radius);
  padding: 1px;
  background: linear-gradient(135deg, rgba(201,162,39,0.55), transparent 40%, transparent 70%, rgba(63,167,150,0.35));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.converter-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 10px;
  align-items: end;
  margin-bottom: 18px;
}
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 6px;
}
.field input,
.field select {
  width: 100%;
  background: var(--ink);
  border: 1px solid #2E4468;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  padding: 13px 12px;
  border-radius: var(--radius-sm);
  transition: border-color 0.15s ease;
}
.field input:focus, .field select:focus { border-color: var(--brass); }
.field select { cursor: pointer; }
.swap-btn {
  background: transparent;
  border: 1px solid #2E4468;
  color: var(--brass);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.swap-btn:hover { border-color: var(--brass); background: rgba(201,162,39,0.08); transform: rotate(180deg); }

/* ---------- Searchable currency picker ---------- */
.ccy-picker { position: relative; }
.ccy-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--ink);
  border: 1px solid #2E4468;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  padding: 13px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s ease;
}
.ccy-trigger:hover, .ccy-trigger[aria-expanded="true"] { border-color: var(--brass); }
.ccy-trigger .ccy-flag { font-size: 1.1rem; line-height: 1; }
.ccy-trigger .ccy-code { flex: 1; }
.ccy-trigger .ccy-caret { width: 14px; height: 14px; opacity: 0.6; flex-shrink: 0; }
.ccy-panel {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  width: min(300px, 92vw);
  background: #0A1626;
  border: 1px solid #2E4468;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  z-index: 20;
  overflow: hidden;
}
.ccy-search {
  width: 100%;
  background: #0F1D33;
  border: none;
  border-bottom: 1px solid #24365A;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 0.92rem;
  padding: 12px 14px;
}
.ccy-search:focus { outline: none; background: #12203A; }
.ccy-list {
  list-style: none;
  margin: 0;
  padding: 6px;
  max-height: 260px;
  overflow-y: auto;
}
.ccy-list li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.88rem;
}
.ccy-list li:hover { background: rgba(201,162,39,0.12); }
.ccy-opt-flag { font-size: 1rem; }
.ccy-opt-code { font-family: var(--font-mono); color: var(--brass); font-weight: 700; flex-shrink: 0; }
.ccy-opt-name { color: #9FAAC0; font-size: 0.8rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ccy-empty { color: var(--ink-faint); font-family: var(--font-mono); font-size: 0.82rem; padding: 14px 10px; cursor: default; }
.ccy-empty:hover { background: none; }

/* Light variant — for pickers placed on the pale paper background instead of the dark converter */
.ccy-picker-light .ccy-trigger {
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
  color: var(--ink);
  padding: 11px 14px;
  font-size: 0.9rem;
  border-radius: var(--radius-pill);
  width: auto;
  min-width: 130px;
  min-height: 44px;
}
.ccy-picker-light .ccy-trigger:hover,
.ccy-picker-light .ccy-trigger[aria-expanded="true"] { border-color: var(--brass); }
.ccy-picker-light .ccy-panel {
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
  min-width: 220px;
}
.ccy-picker-light .ccy-search {
  background: var(--paper);
  color: var(--ink);
  border-bottom: 1px solid var(--hairline);
}
.ccy-picker-light .ccy-search:focus { background: #fff; }
.ccy-picker-light .ccy-list li:hover { background: rgba(201,162,39,0.14); }
.ccy-picker-light .ccy-opt-code { color: var(--brass-dim); }
.ccy-picker-light .ccy-opt-name { color: var(--ink-faint); }

.result-board {
  border-top: 1px dashed #2E4468;
  padding-top: 18px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.result-figure {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  color: var(--brass);
  letter-spacing: 0.01em;
  display: inline-block;
  transform-origin: left center;
}
.result-figure.flip {
  animation: flipIn 0.42s cubic-bezier(0.2, 0.8, 0.2, 1);
}
@keyframes flipIn {
  0%   { transform: rotateX(90deg) translateY(-6px); opacity: 0.2; }
  60%  { transform: rotateX(0deg) translateY(0); opacity: 1; }
  100% { transform: rotateX(0deg); }
}
.result-sub {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-faint);
}
.result-sub.err { color: var(--rate-down); }

/* ---------- Rate grid section ---------- */
.section { padding: 60px 0; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 14px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  margin: 0;
  font-weight: 600;
}
.section-head .sub {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin-top: 4px;
}
.base-picker {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.base-picker select {
  font-family: var(--font-mono);
  border: 1px solid var(--ink);
  background: var(--paper-raised);
  padding: 7px 8px;
  border-radius: var(--radius);
}

.rate-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 12px;
}
.rate-tile {
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 16px 18px 14px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}
.rate-tile:hover {
  border-color: var(--brass);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.tile-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.rate-tile .pair {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 6px;
}
.rate-tile .flag {
  font-size: 1rem;
  line-height: 1;
}
.rate-tile .delta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 20px;
  white-space: nowrap;
}
.rate-tile .delta.up { color: var(--rate-up); background: rgba(63,167,150,0.12); }
.rate-tile .delta.down { color: var(--rate-down); background: rgba(193,68,60,0.12); }
.tile-mid { margin-bottom: 8px; }
.rate-tile .val {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
}
.rate-tile .val small {
  font-size: 0.62rem;
  color: var(--ink-faint);
  font-weight: 400;
  display: block;
  margin-top: 2px;
  letter-spacing: 0.02em;
}
.tile-bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 6px;
  border-top: 1px dashed var(--hairline);
  padding-top: 8px;
}
.spark { width: 100%; max-width: 108px; height: 30px; }
.spark-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

.rate-tile.skeleton { position: relative; overflow: hidden; }
.rate-tile.skeleton .val { color: var(--ink-faint); }
.rate-tile.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(201,162,39,0.10), transparent);
  transform: translateX(-100%);
  animation: shimmer 1.3s infinite;
}
@keyframes shimmer {
  100% { transform: translateX(100%); }
}

.grid-note {
  font-size: 0.82rem;
  color: var(--ink-faint);
  margin-top: 16px;
  font-family: var(--font-mono);
}

/* ---------- Article cards ---------- */
.card-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}
.card {
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 22px;
  text-decoration: none;
  color: var(--ink);
  display: block;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}
.card:hover { border-color: var(--brass); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card .tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brass-dim);
}
.card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin: 10px 0 8px;
  line-height: 1.3;
}
.card p {
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin: 0;
}

/* ---------- Trust strip ---------- */
.trust {
  background: var(--ledger);
  color: var(--paper);
  padding: 44px 0;
}
.trust .wrap {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
}
@media (max-width: 760px) { .trust .wrap { grid-template-columns: 1fr; } }
.trust h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin: 0 0 12px;
}
.trust p { color: #CBD8CF; margin: 0; }
.trust-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.trust-facts div { font-family: var(--font-mono); }
.trust-facts .num { font-size: 1.6rem; color: var(--brass); display: block; }
.trust-facts .lbl { font-size: 0.72rem; color: #9FB3A6; letter-spacing: 0.04em; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: #9FAAC0;
  padding: 44px 0 28px;
  font-size: 0.88rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 28px;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 14px;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 8px; }
.footer-grid a { text-decoration: none; opacity: 0.85; }
.footer-grid a:hover { opacity: 1; color: var(--brass); }
.footer-bottom {
  border-top: 1px solid #24365A;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.78rem;
  color: var(--ink-faint);
}
.footer-bottom .disclaimer { max-width: 60ch; }

/* ---------- Generic article / static page layout ---------- */
.page-hero {
  background: var(--ink);
  color: var(--paper);
  padding: 44px 0;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  margin: 0 0 10px;
}
.page-hero .meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--brass);
  letter-spacing: 0.06em;
}
.prose {
  max-width: 72ch;
  margin: 0 auto;
  padding: 48px 28px 70px;
}
.prose h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin: 2em 0 0.6em;
}
.prose h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin: 1.8em 0 0.5em;
}
.prose p { color: #2C3A52; margin: 0 0 1.1em; }
.prose ul, .prose ol { color: #2C3A52; margin: 0 0 1.1em; padding-left: 1.3em; }
.prose li { margin-bottom: 0.4em; }
.prose blockquote {
  border-left: 3px solid var(--brass);
  margin: 1.6em 0;
  padding: 4px 0 4px 18px;
  color: var(--ink-soft);
  font-style: italic;
}
.callout {
  background: #E4E9DC;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 1.8em 0;
  font-size: 0.94rem;
}
.callout strong { color: var(--ledger); }

.static-page .prose h1 {
  font-family: var(--font-display);
  font-size: 1.8rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: var(--brass);
  color: var(--ink);
  text-decoration: none;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.92rem;
  border: none;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}
.btn:hover { background: var(--brass-dim); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--paper);
  color: var(--paper);
}

/* ---------- Ad slots ---------- */
.ad-slot {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}
.ad-slot .ad-inner {
  border: 1px dashed var(--hairline);
  background: #E2E5DA;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-align: center;
  padding: 18px;
  border-radius: var(--radius);
  letter-spacing: 0.05em;
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  .reveal { opacity: 1; transform: none; }
}