.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2.5rem);
}

section { padding-block: var(--space-2xl); position: relative; }

.section-head { margin-bottom: var(--space-lg); max-width: 640px; }
.section-head--center { text-align: center; margin-inline: auto; }
.section-head--center p { margin-inline: auto; }
.section-head p { color: var(--ink-400); margin-top: var(--space-xs); font-size: 1.02rem; }

/* ══════════════════════════════════════
   SITE HEADER
   ══════════════════════════════════════ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(6, 9, 18, 0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--hairline);
}
.site-header__bar {
  display: flex; align-items: center; gap: 1.5rem;
  height: 68px;
}
.brand {
  display: inline-flex; align-items: center; gap: .65rem;
  font-family: var(--font-display);
  font-weight: 600; font-size: 1.02rem;
  color: var(--ink-100);
  white-space: nowrap; flex-shrink: 0;
}
.brand__mark { flex-shrink: 0; display: block; }

.site-nav { display: flex; gap: 1.7rem; margin-left: auto; }
.site-nav a {
  font-size: .88rem; color: var(--ink-400);
  transition: color .15s;
}
.site-nav a:hover { color: var(--cyan); }

/* ══════════════════════════════════════
   GRIDS — shared two-column section patterns
   ══════════════════════════════════════ */
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.split-grid--reverse > *:first-child { order: 2; }
.split-grid--reverse > *:last-child { order: 1; }

/* ══════════════════════════════════════
   FOOTER
   ══════════════════════════════════════ */
.site-footer {
  background: var(--void-deep);
  border-top: 1px solid var(--hairline);
  padding-block: var(--space-xl) var(--space-md);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}
.footer-brand p { color: var(--ink-600); font-size: .85rem; margin-top: .75rem; max-width: 32ch; }
.footer-col h4 {
  font-family: var(--font-mono); font-size: .72rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .12em; color: var(--brass);
  margin-bottom: .85rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: .55rem; }
.footer-col li a { font-size: .87rem; color: var(--ink-600); transition: color .15s; }
.footer-col li a:hover { color: var(--ink-100); }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--hairline);
  font-size: .8rem; color: var(--ink-600);
}