.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: linear-gradient(180deg, var(--sk-header-from) 0%, var(--sk-header-to) 100%);
  border-bottom: 1px solid rgba(110, 231, 183, 0.18);
  backdrop-filter: blur(8px);
}

.site-header .site-brand {
  color: #f8fafc;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.site-header .site-brand__title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
}

.site-header .site-brand__subtitle {
  margin: 0;
  font-size: 0.77rem;
  color: #a8b3c9;
}

.site-header .nav-link {
  color: #cbd5e1;
  border-radius: 10px;
  font-size: 0.9rem;
  padding: 0.45rem 0.75rem;
}

.site-header .nav-link .sk-site-icon,
.site-header .nav-link .hub-icon--inline {
  color: #e2e8f0;
}

.site-header .nav-link:not(.nav-link--brand-lock):hover .sk-site-icon,
.site-header .nav-link:not(.nav-link--brand-lock):hover .hub-icon--inline,
.site-header .nav-link:not(.nav-link--brand-lock):focus-visible .sk-site-icon,
.site-header .nav-link:not(.nav-link--brand-lock):focus-visible .hub-icon--inline {
  color: #ffffff;
}

.site-header .nav-link:not(.nav-link--brand-lock).active .sk-site-icon,
.site-header .nav-link:not(.nav-link--brand-lock).active .hub-icon--inline {
  color: var(--sk-header-accent);
}

/* Keep brand identity icons unchanged in navigation states */
.site-header .nav-link.nav-link--brand-lock .sk-site-icon,
.site-header .nav-link.nav-link--brand-lock .hub-icon--inline {
  color: #e2e8f0;
}

.site-header .nav-link:hover,
.site-header .nav-link:focus-visible {
  color: #ffffff;
  background: rgba(148, 163, 184, 0.18);
}

.site-header .nav-link.active {
  color: var(--sk-header-accent);
  background: var(--sk-header-accent-soft);
}

.site-brand .sk-site-icon--brand {
  color: var(--sk-header-accent);
  font-size: 1.35rem;
}

.site-header .bi {
  color: inherit;
}

.site-header__mobile-toggle {
  border: 1px solid rgba(148, 163, 184, 0.5);
  color: #e2e8f0;
  background: transparent;
  border-radius: 10px;
  padding: 0.35rem 0.65rem;
}

.site-header__offcanvas {
  background: var(--sk-header-bg);
  color: #e2e8f0;
}

.site-header__offcanvas .nav-link {
  display: block;
  margin-bottom: 0.4rem;
}