.container {
  width: min(100% - (var(--container-pad) * 2), var(--container-max));
  margin-inline: auto;
}

.container-narrow {
  width: min(100% - (var(--container-pad) * 2), 860px);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-border-soft);
  backdrop-filter: blur(8px);
}

.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-24);
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand-logo {
  display: block;
  height: 42px;
  width: auto;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-8);
}

.main-nav a {
  color: var(--color-text-secondary);
  font-weight: var(--fw-medium);
  padding: var(--space-8) var(--space-12);
  border-radius: var(--radius-sm);
  transition: color var(--ease-standard), background var(--ease-standard);
}

.main-nav a:hover,
.main-nav a.is-active {
  color: var(--color-brand-primary);
  background: var(--color-navy-100);
}

.main-nav a[aria-current="page"] {
  color: var(--color-brand-primary);
  background: var(--color-navy-100);
}

.hero {
  background: var(--color-bg-hero);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-32), 6vw, var(--space-64));
  box-shadow: var(--shadow-xs);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-12);
  margin-top: var(--space-24);
}

.site-footer {
  margin-top: var(--space-80);
  background: var(--color-navy-900);
  color: var(--color-text-on-dark);
}

.site-footer h3,
.site-footer h4 {
  color: var(--color-white);
  margin-bottom: var(--space-10);
}

.site-footer p,
.site-footer li {
  color: rgba(255, 255, 255, 0.86);
}

.site-footer ul {
  margin: 0;
  padding-left: 1.1rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.92);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: var(--space-32);
  padding-block: var(--space-48);
}

.footer-note {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--fs-14);
  padding-block: var(--space-16) var(--space-24);
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: var(--space-24);
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.stack > * + * {
  margin-top: var(--space-16);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-12);
}

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  .grid-2,
  .grid-3,
  .grid-4,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding-block: var(--space-16);
  }
}