:root {
  --bg: #0F1A2B;
  --surface: #16233A;
  --surface-alt: #1E2E4A;
  --text: #F5F2EA;
  --text-muted: #93A5C2;
  --accent-green: #35916A;
  --accent-green-bright: #4CB98A;
  --accent-amber: #E8A33D;
  --border: rgba(245,242,234,0.09);
  --radius: 10px;

  --font-display: 'Fraunces', serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--accent-green-bright); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent-amber);
  outline-offset: 2px;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; margin: 0 0 0.5em; }
h1 { font-size: clamp(1.9rem, 4.5vw, 3rem); line-height: 1.15; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: 1.1rem; font-weight: 600; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  position: sticky;
  top: 0;
  background: rgba(15,26,43,0.9);
  backdrop-filter: blur(8px);
  z-index: 10;
}
.site-header .wrap { display: flex; justify-content: space-between; align-items: center; }
.logo { font-family: var(--font-display); font-size: 1.15rem; font-weight: 700; color: var(--text); }
.logo .dot { color: var(--accent-amber); }
.nav { display: flex; gap: 28px; }
.nav a { color: var(--text-muted); font-size: 0.92rem; font-weight: 500; }
.nav a:hover { color: var(--text); text-decoration: none; }

/* Hero / Board */
.board-hero { padding: 64px 0 48px; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-green-bright);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}
#last-updated { color: var(--text-muted); text-transform: none; }

.board {
  margin-top: 36px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.board-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 16px;
  align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
}
.board-row:last-child { border-bottom: none; }
.pair-label { font-weight: 500; color: var(--text); font-size: 0.98rem; }
.pair-label .sub { color: var(--text-muted); font-size: 0.82rem; display: block; }
.pair-rate {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--accent-green-bright);
  font-variant-numeric: tabular-nums;
  text-align: right;
}
.pair-change {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-align: right;
  min-width: 60px;
}
.pair-change.up { color: var(--accent-green-bright); }
.pair-change.down { color: var(--accent-amber); }

.board-note { margin-top: 18px; color: var(--text-muted); font-size: 0.88rem; }

/* Converter */
.converter { padding: 56px 0; border-top: 1px solid var(--border); }
.converter-box {
  display: grid;
  grid-template-columns: 1fr 1.3fr auto 1.3fr;
  gap: 16px;
  align-items: end;
  margin-top: 24px;
}
.field label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 500;
}
.field input, .field select {
  width: 100%;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 1rem;
}
.swap { color: var(--accent-amber); font-size: 1.3rem; padding-bottom: 12px; text-align: center; }
.result {
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 1.7rem;
  color: var(--accent-green-bright);
  font-variant-numeric: tabular-nums;
}

/* Send comparison */
.send { padding: 56px 0; border-top: 1px solid var(--border); background: var(--surface); }
.section-sub { color: var(--text-muted); max-width: 60ch; margin-top: -6px; }
.table-wrap { overflow-x: auto; margin-top: 24px; }
.compare-table { width: 100%; border-collapse: collapse; min-width: 560px; }
.compare-table th {
  text-align: left;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}
.compare-table td {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.compare-table td.provider-name { font-weight: 600; font-family: var(--font-display); }
.compare-table td.mono { font-family: var(--font-mono); }
.cta-btn {
  display: inline-block;
  padding: 8px 16px;
  background: var(--accent-green);
  color: #fff;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 500;
}
.cta-btn:hover { background: var(--accent-green-bright); text-decoration: none; }
.disclosure { margin-top: 20px; color: var(--text-muted); font-size: 0.8rem; }

/* Corridor content */
.corridor-content { padding: 56px 0; border-top: 1px solid var(--border); }
.corridor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 28px; }
.corridor-grid p { color: var(--text-muted); font-size: 0.92rem; }

/* Alerts */
.alerts { padding: 56px 0; border-top: 1px solid var(--border); background: var(--surface-alt); }
.alerts-wrap { display: flex; justify-content: space-between; align-items: center; gap: 32px; flex-wrap: wrap; }
.alerts h2 { margin-bottom: 6px; }
.alerts p { color: var(--text-muted); margin: 0; }
.alert-form { display: flex; gap: 10px; }
.alert-form input {
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  min-width: 220px;
}
.alert-form button {
  padding: 12px 20px;
  background: var(--accent-amber);
  color: #1a1204;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}
.alert-form button:hover { background: #f0b45c; }

.nav-business {
  color: var(--accent-amber) !important;
  font-weight: 600;
}
.hero-sub {
  color: var(--text-muted);
  max-width: 56ch;
  font-size: 1.02rem;
  margin-top: -8px;
}

.watchlist-btn {
  margin-top: 14px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  cursor: pointer;
}
.watchlist-btn:hover { border-color: var(--accent-amber); color: var(--accent-amber); }

/* Chart section */
.chart-section, .rate-table-section, .watchlist-section, .business-section {
  padding: 56px 0;
  border-top: 1px solid var(--border);
}
.chart-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.range-toggle { display: flex; gap: 6px; }
.range-toggle button {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  cursor: pointer;
}
.range-toggle button.active { background: var(--accent-green); color: #fff; border-color: var(--accent-green); }
.chart-wrap {
  margin-top: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.chart-note { margin-top: 14px; color: var(--text-muted); font-size: 0.85rem; }
.link-btn {
  background: none;
  border: none;
  color: var(--accent-green-bright);
  cursor: pointer;
  font-size: inherit;
  font-family: inherit;
  padding: 0;
  text-decoration: underline;
}

/* Corridor pills */
.corridor-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.pill {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  cursor: pointer;
}
.pill.active { background: var(--accent-green); border-color: var(--accent-green); color: #fff; }

/* Full rate table */
.table-base-field select { width: auto; min-width: 200px; }
.rate-full-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.rate-full-table th {
  text-align: left;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.rate-full-table td { padding: 12px; border-bottom: 1px solid var(--border); font-size: 0.92rem; }

/* Business section */
.business-section { background: var(--surface); }
.business-wrap { display: flex; justify-content: space-between; align-items: center; gap: 32px; flex-wrap: wrap; }
.business-wrap p { color: var(--text-muted); max-width: 50ch; margin: 6px 0 0; }
.cta-btn-lg { padding: 12px 22px; font-size: 0.95rem; white-space: nowrap; }

/* Footer */
.site-footer { padding: 32px 0; border-top: 1px solid var(--border); }
.site-footer p { color: var(--text-muted); font-size: 0.82rem; margin: 0; }

@media (max-width: 720px) {
  .converter-box { grid-template-columns: 1fr; }
  .swap { text-align: left; padding: 0; }
  .corridor-grid { grid-template-columns: 1fr; }
  .board-row { grid-template-columns: 1fr auto; }
  .pair-change { display: none; }
  .alerts-wrap { flex-direction: column; align-items: flex-start; }
}