/* Shared vertical rhythm — adjacent sections use this instead of 96px+96px */
:root {
  --section-y: 64px;
  --section-y-md: 56px;
  --section-y-sm: 48px;
  --nav-h: 68px;
}

header {
  overflow: visible;
}

/* Arix AI header dropdown — shared across all pages */
.nav-item {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-parent {
  display: inline-flex !important;
  align-items: center;
  gap: 5px;
}

.nav-parent svg {
  width: 12px;
  height: 12px;
  opacity: 0.62;
  transition: transform 0.18s ease;
}

.nav-item:hover > .nav-parent,
.nav-item:focus-within > .nav-parent,
.nav-item.open > .nav-parent {
  color: var(--arix-ink);
  background: var(--arix-surface-secondary);
}

.nav-item:hover .nav-parent svg,
.nav-item:focus-within .nav-parent svg,
.nav-item.open .nav-parent svg {
  transform: rotate(180deg);
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 248px;
  background: var(--arix-white);
  border: 1px solid var(--arix-border);
  border-radius: 0 0 12px 12px;
  box-shadow: 0 14px 36px rgba(17, 20, 38, 0.10);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: none;
  transition: opacity 0.16s ease, visibility 0.16s;
  z-index: 1100;
}

.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -16px;
  left: 0;
  right: 0;
  height: 16px;
}

.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown,
.nav-item.open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.nav-dropdown a {
  display: block;
  padding: 10px 12px !important;
  border-radius: 8px;
  font-size: 14.5px !important;
  font-weight: 500;
  color: var(--arix-ink);
  white-space: normal;
  line-height: 1.35;
}

.nav-dropdown a:hover,
.nav-dropdown a:focus-visible {
  background: var(--arix-surface-secondary);
  color: var(--arix-ink);
}

.nav-dropdown a.active {
  color: var(--arix-blue);
  background: rgba(72, 95, 255, 0.06);
}

.nav-dropdown-end {
  left: auto;
  right: 0;
  min-width: 228px;
}

.nav-dropdown-end a {
  padding: 8px 12px !important;
}

.nav-dropdown-label {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--arix-muted);
  padding: 10px 12px 4px;
}

header nav {
  align-self: stretch;
}

/* ─── Arix AI mega-menu — flush under the header, full content width ─ */
.nav-item.has-mega {
  position: static;
  align-self: stretch;
}

.nav-item.has-mega .nav-parent {
  height: auto;
  min-height: 0;
  align-self: center;
}

.nav-dropdown.nav-mega {
  top: 100%;
  left: 0;
  right: 0;
  width: auto;
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(140px, 168px) 1fr 1fr 1fr;
  gap: 8px clamp(16px, 2vw, 32px);
  padding: 22px clamp(24px, 4vw, 80px) 20px;
  transform: none;
  border-radius: 0 0 16px 16px;
  box-shadow: 0 18px 48px rgba(17, 20, 38, 0.12);
}

.nav-item:hover .nav-dropdown.nav-mega,
.nav-item:focus-within .nav-dropdown.nav-mega,
.nav-item.open .nav-dropdown.nav-mega {
  transform: none;
}

.nav-dropdown.nav-mega::before {
  top: -8px;
  left: 0;
  right: 0;
  width: auto;
  max-width: none;
  height: 8px;
}

.nav-mega-col {
  min-width: 0;
}

.nav-dropdown.nav-mega .nav-dropdown-label {
  padding: 0 0 10px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--arix-border);
}

.nav-dropdown.nav-mega a {
  padding: 8px 10px !important;
  font-size: 14px !important;
  border-radius: 8px;
}

.nav-dropdown.nav-mega a.nav-mega-more {
  margin-top: 6px;
  color: var(--arix-blue);
  font-weight: 700 !important;
}

.nav-dropdown.nav-mega a.nav-mega-more:hover,
.nav-dropdown.nav-mega a.nav-mega-more:focus-visible {
  background: rgba(72, 95, 255, 0.06);
  color: var(--arix-blue);
}

.nav-dropdown.nav-mega.nav-mega-ir {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

header .header-inner,
header nav {
  overflow: visible;
}

@media (max-width: 1200px) {
  .nav-dropdown.nav-mega,
  .nav-dropdown.nav-mega.nav-mega-ir {
    grid-template-columns: 1fr 1fr;
    gap: 18px 24px;
  }
}

/* Desktop mega-menu does not fit below this width — use the mobile drawer */
@media (max-width: 1024px) {
  header nav { display: none !important; }
  .hamburger { display: flex !important; }
}

.mobile-nav {
  max-height: calc(100vh - var(--nav-h));
  overflow-y: auto;
}

.mobile-nav-sub {
  padding-left: 18px !important;
  font-size: 14.5px !important;
  font-weight: 500 !important;
}

.mobile-nav-label {
  display: block;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--arix-muted);
  padding: 12px 0 2px;
  border-bottom: none;
}