.site-header {
  position: sticky; top: 0; z-index: 100;
  padding: 14px 0;
  background: rgba(255, 250, 244, 0.72);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(61, 42, 28, 0.08);
}
.header-shell {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.brand {
  display: inline-flex; align-items: center; gap: 12px; min-width: 0;
}
.brand-mark {
  width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; font-weight: 800;
  box-shadow: var(--shadow-sm);
}
.brand-text { display: grid; line-height: 1.05; }
.brand-text small { color: var(--muted); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; }
.main-nav { margin-left: auto; }
.nav-desktop {
  display: flex; align-items: center; gap: 20px;
}
.nav-list {
  list-style: none; padding: 0; margin: 0; display: flex; align-items: center; gap: 8px;
}
.nav-list a, .mega-trigger {
  min-height: 42px; padding: 0 14px; border-radius: 999px; display: inline-flex; align-items: center;
  color: var(--text); background: transparent; border: 0; font-weight: 600;
}
.nav-list a:hover, .nav-list a:focus-visible, .mega-trigger:hover, .mega-trigger:focus-visible {
  background: rgba(255,255,255,0.7);
}
.has-mega-menu { position: relative; }
.mega-menu {
  position: absolute; top: calc(100% + 12px); left: 0; min-width: 560px; display: grid;
  grid-template-columns: repeat(3, 1fr); gap: 20px; padding: 22px;
  background: rgba(255,255,255,0.92); border: 1px solid rgba(61,42,28,0.08);
  border-radius: 24px; box-shadow: var(--shadow-lg); backdrop-filter: blur(18px);
  opacity: 0; visibility: hidden; transform: translateY(8px); transition: all var(--transition);
}
.has-mega-menu:hover .mega-menu,
.has-mega-menu:focus-within .mega-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.mega-menu a { display: block; padding: 8px 0; color: var(--muted); }
.mega-menu a:hover, .mega-menu a:focus-visible { color: var(--text); }
.mega-title { margin: 0 0 8px; color: var(--text); font-weight: 800; }
.nav-toggle {
  display: none; width: 48px; height: 48px; border-radius: 14px; border: 1px solid var(--line);
  background: rgba(255,255,255,0.7); padding: 0; position: relative;
}
.nav-toggle span:not(.sr-only) {
  position: absolute; left: 12px; right: 12px; height: 2px; background: var(--text); border-radius: 999px;
}
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 23px; }
.nav-toggle span:nth-child(3) { top: 30px; }
.mobile-menu {
  padding: 0 16px 16px;
}
.mobile-menu-panel {
  display: grid; gap: 10px; padding: 18px; background: rgba(255,255,255,0.92);
  border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow-lg);
}
.mobile-menu-panel a {
  min-height: 46px; display: flex; align-items: center; padding: 0 12px; border-radius: 14px;
}
.mobile-menu-panel a:hover, .mobile-menu-panel a:focus-visible { background: var(--bg-alt); }

@media (max-width: 980px) {
  .nav-desktop { display: none; }
  .nav-toggle { display: inline-block; }
}