/* ==========================================================================
   Blueprint Code — global site chrome (header + footer)
   SINGLE SOURCE OF TRUTH for the shared header and footer styling.
   Edit here; every page picks it up (it is linked, not copied).

   Fully self-contained and isolated:
   - all selectors are scoped under .bpc-chrome and use bpc- class names
   - CSS variables are declared on .bpc-chrome (not :root)
   - the markup uses role="banner"/"navigation"/"contentinfo" divs instead of
     bare <header>/<nav>/<footer>, so nothing here collides with a page's own
     CSS (site.css or any standalone demo), in either direction.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=DM+Mono:wght@400;500&family=IBM+Plex+Sans:wght@400;450;600&display=swap');

.bpc-chrome {
  --bpc-ground: #0B1A2E;
  --bpc-ground-2: #0E2136;
  --bpc-line: #2C4A6E;
  --bpc-line-soft: #1D3552;
  --bpc-ink: #EAF1F8;
  --bpc-ink-2: #8FA9C6;
  --bpc-ink-3: #5F7C9E;
  --bpc-max: 1240px;
  --bpc-gut: 32px;
  --bpc-display: 'Bebas Neue', Impact, sans-serif;
  --bpc-data: 'DM Mono', ui-monospace, Menlo, Consolas, monospace;
  --bpc-prose: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  box-sizing: border-box;
}
.bpc-chrome *,
.bpc-chrome *::before,
.bpc-chrome *::after { box-sizing: border-box; }

.bpc-sheet {
  width: min(var(--bpc-max), calc(100% - var(--bpc-gut) * 2));
  margin: auto;
  position: relative;
  z-index: 1;
}

/* ---------- header ---------- */
.bpc-head {
  height: 72px;
  position: sticky;
  top: 0;
  z-index: 2000;
  background: var(--bpc-ground);
  border-bottom: 1px solid var(--bpc-line);
  font-family: var(--bpc-prose);
}
.bpc-head .bpc-sheet {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.bpc-mark {
  display: flex;
  align-items: baseline;
  gap: 9px;
  text-decoration: none;
}
.bpc-mark b {
  font-family: var(--bpc-display);
  font-size: 25px;
  font-weight: 400;
  color: var(--bpc-ink);
  letter-spacing: .02em;
}
.bpc-mark span {
  font-family: var(--bpc-data);
  font-size: 10px;
  letter-spacing: .14em;
  color: var(--bpc-ink-3);
}
.bpc-nav {
  display: flex;
  align-items: center;
  gap: 25px;
}
.bpc-nav a {
  font-family: var(--bpc-data);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--bpc-ink-3);
  text-decoration: none;
}
.bpc-nav a:hover { color: var(--bpc-ink); }
.bpc-nav a[aria-current] { color: var(--bpc-ink); }
.bpc-button {
  display: inline-block;
  border: 1px solid var(--bpc-ink);
  padding: 12px 20px;
  color: var(--bpc-ink);
  font-family: var(--bpc-data);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .11em;
  text-transform: uppercase;
  text-decoration: none;
}
.bpc-button:hover { background: var(--bpc-ink); color: var(--bpc-ground); }
.bpc-burger {
  display: none;
  background: 0;
  border: 1px solid var(--bpc-line);
  color: var(--bpc-ink);
  font-family: var(--bpc-data);
  font-size: 11px;
  letter-spacing: .11em;
  padding: 11px 16px;
  cursor: pointer;
  text-transform: uppercase;
}
.bpc-burger:hover { border-color: var(--bpc-ink); }

/* ---------- footer ---------- */
.bpc-footer {
  border-top: 2px solid var(--bpc-ink);
  padding: 24px 0 44px;
  background: var(--bpc-ground);
  font-family: var(--bpc-prose);
}
.bpc-tb {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  font-family: var(--bpc-data);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--bpc-ink-3);
}
.bpc-tb > div {
  padding: 14px 18px 14px 0;
  border-right: 1px solid var(--bpc-line-soft);
}
.bpc-tb > div:last-child { border-right: 0; }
.bpc-tb b {
  display: block;
  color: var(--bpc-ink);
  font-weight: 400;
  margin-top: 5px;
  letter-spacing: .08em;
}
.bpc-tb a {
  color: var(--bpc-ink-3);
  border-bottom: 1px solid var(--bpc-line);
  text-decoration: none;
}
.bpc-tb a:hover { border-bottom-color: var(--bpc-ink); color: var(--bpc-ink); }

/* trust / company links row, below the drafting strip */
.bpc-foot-links {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px 18px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--bpc-line-soft);
  font-family: var(--bpc-data);
  font-size: 11px;
  letter-spacing: .12em;
}
.bpc-foot-links-key { color: var(--bpc-ink-3); }
.bpc-foot-links a { color: var(--bpc-ink); border-bottom: 1px solid var(--bpc-line); text-decoration: none; }
.bpc-foot-links a:hover { border-bottom-color: var(--bpc-ink); }

/* ---------- responsive / mobile menu ---------- */
@media (max-width: 850px) {
  .bpc-nav a:not(.bpc-button) { display: none; }
  .bpc-burger { display: block; }
  .bpc-tb { grid-template-columns: repeat(2, 1fr); }

  .bpc-head.bpc-open { height: auto; }
  .bpc-head.bpc-open .bpc-sheet {
    flex-wrap: wrap;
    padding-top: 14px;
    padding-bottom: 14px;
  }
  .bpc-head.bpc-open .bpc-nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 0;
  }
  .bpc-head.bpc-open .bpc-nav a:not(.bpc-button) {
    display: block;
    font-size: 14px;
    letter-spacing: .12em;
    padding: 18px 0;
    border-bottom: 1px solid var(--bpc-line-soft);
  }
  .bpc-head.bpc-open .bpc-nav a.bpc-button {
    margin-top: 20px;
    text-align: center;
  }
}