.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}
.container-narrow { max-width: 860px; }
.container-wide { max-width: 1320px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--color-line);
}
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-3) var(--space-5);
  min-height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-ink);
  font-weight: 600;
}
.brand:hover { color: var(--color-ink); }
.brand-mark { display: inline-flex; align-items: center; }
.brand-text { display: inline-flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 16px; letter-spacing: -.01em; color: var(--color-brand-strong); }
.brand-text strong .brand-sub {
  font-weight: 500;
  color: var(--color-accent-strong);
  letter-spacing: .01em;
  margin-left: 2px;
}
.brand-text em { font-style: normal; font-size: 12px; color: var(--color-ink-muted); letter-spacing: .03em; }
.brand.small .brand-text strong { font-size: 14px; }

.primary-nav {
  display: flex;
  gap: var(--space-5);
  margin-left: var(--space-4);
  flex: 1 1 auto;
}
.primary-nav a {
  color: var(--color-ink-2);
  font-size: 14.5px;
  font-weight: 500;
  padding: 8px 2px;
  border-bottom: 2px solid transparent;
}
.primary-nav a:hover { color: var(--color-brand-strong); }
.primary-nav a.is-active {
  color: var(--color-brand-strong);
  border-bottom-color: var(--color-accent);
}

.nav-actions { display: flex; gap: var(--space-3); align-items: center; }

@media (max-width: 820px) {
  .primary-nav { display: none; }
  .nav-actions .btn-ghost { display: none; }
}

.site-footer {
  margin-top: var(--space-9);
  padding: var(--space-7) 0 var(--space-6);
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-line);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-6);
}
.footer-grid h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-3);
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: var(--space-2); font-size: var(--fs-sm); }
.footer-grid a { color: var(--color-ink-2); }
.footer-grid a:hover { color: var(--color-brand-strong); }

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

section { padding: var(--space-8) 0; }
section.tight { padding: var(--space-6) 0; }
section.hero { padding: var(--space-9) 0 var(--space-8); }
section.section-soft { background: var(--color-bg-soft); }

.section-head { max-width: 720px; margin: 0 0 var(--space-6); }
.section-head.center { margin: 0 auto var(--space-6); text-align: center; }
.section-head .eyebrow {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}
.section-head p.lead {
  font-size: var(--fs-md);
  color: var(--color-ink-muted);
}

.grid { display: grid; gap: var(--space-5); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .grid.cols-3, .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; }
}

.stack { display: flex; flex-direction: column; }
.stack.gap-2 { gap: var(--space-2); }
.stack.gap-3 { gap: var(--space-3); }
.stack.gap-4 { gap: var(--space-4); }
.stack.gap-5 { gap: var(--space-5); }
.stack.gap-6 { gap: var(--space-6); }

.row { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.row.end { justify-content: flex-end; }
.row.top { align-items: flex-start; }

.divider { height: 1px; background: var(--color-line); margin: var(--space-6) 0; }

.view-root { min-height: 60vh; }

.view-fade { opacity: 0; transform: translateY(6px); animation: viewIn 380ms var(--ease-out) forwards; }
@keyframes viewIn {
  to { opacity: 1; transform: none; }
}