@font-face {
  font-family: 'Die Grotesk';
  src: url('/fonts/die-grotesk-vf-roman.woff2') format('woff2-variations');
  font-weight: 100 900;
  font-display: block;
}

@font-face {
  font-family: 'GT America Mono';
  src: url('/fonts/GT-America-Mono-Regular.woff2') format('woff2');
  font-weight: 400;
  font-display: block;
}

@font-face {
  font-family: 'GT America Mono';
  src: url('/fonts/GT-America-Mono-Medium.woff2') format('woff2');
  font-weight: 500;
  font-display: block;
}

@font-face {
  font-family: 'GT America Mono';
  src: url('/fonts/GT-America-Mono-Bold.woff2') format('woff2');
  font-weight: 700;
  font-display: block;
}

/* Legacy fallbacks */
@font-face {
  font-family: 'Switzer';
  src: url('/fonts/Switzer-Regular.otf') format('opentype');
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: 'Switzer';
  src: url('/fonts/Switzer-Medium.otf') format('opentype');
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: 'Switzer';
  src: url('/fonts/Switzer-Bold.otf') format('opentype');
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: 'Office Code Pro';
  src: url('/fonts/OfficeCodePro-Regular.otf') format('opentype');
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: 'Office Code Pro';
  src: url('/fonts/OfficeCodePro-Medium.otf') format('opentype');
  font-weight: 500;
  font-display: swap;
}

:root {
  --bg: #0a0a0b;
  --bg-card: #141415;
  --text: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.55);
  --text-tertiary: rgba(255, 255, 255, 0.35);
  --accent: #FF8566;
  --accent-dim: rgba(255, 133, 102, 0.15);
  --rule: rgba(255, 255, 255, 0.12);
  --rule-strong: rgba(255, 255, 255, 0.25);
  --positive: #5ddb6d;
  --negative: #ff6b6b;
  --warning: #eab308;
  --input-bg: rgba(255, 255, 255, 0.08);
  --input-border: rgba(255, 255, 255, 0.2);
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Die Grotesk', 'Switzer', 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.page-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 2rem 3rem;
}

/* ── Navigation ── */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
}

.site-nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
}

.nav-logo {
  display: flex;
  align-items: center;
  opacity: 0.85;
  transition: opacity 0.15s;
}

.nav-logo:hover {
  opacity: 1;
}

.nav-links {
  display: flex;
  gap: 1.75rem;
}

.nav-link {
  text-decoration: none;
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.nav-link:hover {
  color: var(--text);
}

.nav-link.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Section headings ── */

h2 {
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* ── Cards ── */

.card {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
}

/* ── Data tables ── */

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.data-table th {
  text-align: left;
  text-transform: uppercase;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--rule-strong);
}

.data-table td {
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--rule);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table .num {
  text-align: right;
  font-family: 'GT America Mono', 'Office Code Pro', 'SF Mono', monospace;
  font-variant-numeric: tabular-nums;
}

.data-table th.num {
  text-align: right;
}

.data-table .total td {
  border-top: 1px solid var(--rule-strong);
  border-bottom: none;
  font-weight: 700;
}

/* ── Footer ── */

.site-footer {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-footer img {
  height: 16px;
  opacity: 0.35;
}

/* ── Utility: price impact ── */

.impact-low { color: var(--positive); }
.impact-mid { color: var(--warning); }
.impact-high { color: var(--negative); }

/* ── Utility: flow direction ── */

.f-in { color: var(--positive); }
.f-out { color: var(--negative); }
.f-net.pos { color: var(--positive); }
.f-net.neg { color: var(--negative); }

/* ── Responsive ── */

@media (max-width: 768px) {
  .page-wrap {
    padding: 0 1.25rem 2rem;
  }

  .site-nav-inner {
    padding: 0 1.25rem;
  }

  .nav-links {
    gap: 1.25rem;
  }

  .card {
    padding: 1rem 1.25rem;
  }
}

@media (max-width: 480px) {
  .page-wrap {
    padding: 0 1rem 1.5rem;
  }

  .site-nav-inner {
    padding: 0 1rem;
    height: 46px;
  }

  .nav-links {
    gap: 1rem;
  }

  .nav-link {
    font-size: 10px;
  }

  body {
    font-size: 14px;
  }

  .data-table {
    font-size: 0.8rem;
  }

  .card {
    padding: 0.875rem 1rem;
  }
}