/**
 * AVENIX Venture - Desktop Navigation & Services Mega-Menu
 */

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 2px;
  font-family: var(--font-heading);
  font-size: var(--fs-body-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  background: transparent !important;
  border-radius: 0;
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  transition: color 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Animated Dot Indicator */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 5px;
  height: 5px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  opacity: 0;
  transform: translateX(-50%) scale(0);
  transition: opacity 0.22s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.22s ease;
  pointer-events: none;
}

/* Optic balance offset for links with a dropdown chevron */
.nav-link:has(.icon-chevron)::after {
  left: calc(50% - 9px);
}

/* Hover State */
.nav-link:hover,
.nav-link:focus-visible,
.nav-item:hover .nav-link,
.nav-item:focus-within .nav-link {
  color: var(--color-text-primary);
  background: transparent !important;
}

.nav-link:hover::after,
.nav-item:hover .nav-link::after {
  opacity: 0.7;
  transform: translateX(-50%) scale(0.9);
  box-shadow: 0 0 6px var(--color-primary-glow);
}

/* Active State — Animated Pulsing Glowing Dot */
.nav-link.is-active,
.nav-item.is-active>.nav-link {
  color: var(--color-text-primary) !important;
  font-weight: 600;
  background: transparent !important;
}

.nav-link.is-active::after,
.nav-item.is-active>.nav-link::after {
  opacity: 1;
  transform: translateX(-50%) scale(1);
  box-shadow: 0 0 8px var(--color-primary-glow), 0 0 2px var(--color-accent);
  animation: navDotPulse 2.2s ease-in-out infinite;
}

.nav-link.is-active:hover::after {
  opacity: 1;
  transform: translateX(-50%) scale(1.15);
}

@keyframes navDotPulse {
  0%, 100% {
    transform: translateX(-50%) scale(1);
    box-shadow: 0 0 8px var(--color-primary-glow), 0 0 2px var(--color-accent);
  }
  50% {
    transform: translateX(-50%) scale(1.35);
    box-shadow: 0 0 14px var(--color-primary), 0 0 4px var(--color-accent);
  }
}

.nav-link svg.icon-chevron {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 2.2;
  fill: none;
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link svg.icon-chevron,
.nav-item:focus-within .nav-link svg.icon-chevron {
  transform: rotate(180deg);
}

/* Mega-Menu Container - Aligned to trigger left, prevents left-edge viewport clipping */
.mega-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  width: 740px;
  max-width: calc(100vw - 48px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: var(--color-shadow-lg);
  padding: 20px 24px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(6px);
  transition: opacity 0.2s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.2s cubic-bezier(0.16, 1, 0.3, 1),
    visibility 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: var(--z-dropdown);
}

/* Invisible hover bridge to prevent cursor dropout */
.mega-menu::before {
  content: '';
  position: absolute;
  top: -16px;
  left: 0;
  right: 0;
  height: 16px;
}

.nav-item:hover .mega-menu,
.nav-item:focus-within .mega-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.mega-menu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.mega-column-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  font-size: 0.725rem;
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  color: var(--color-text-muted);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border-subtle);
}

.mega-column-title--ai {
  color: var(--color-secondary);
}

.mega-links-grid {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mega-link-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border-radius: 8px;
  text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.mega-link-card:hover {
  background-color: var(--color-bg-alt);
}

.mega-link-card--ai:hover {
  background-color: var(--color-secondary-alpha);
}

.mega-icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--color-primary-alpha);
  color: var(--color-primary);
  border: 1px solid var(--color-primary-border);
  flex-shrink: 0;
  transition: all 0.15s ease;
}

.mega-icon-box svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.mega-link-card--ai .mega-icon-box {
  background: var(--color-secondary-alpha);
  color: var(--color-secondary);
  border: 1px solid var(--color-secondary-border);
}

.mega-link-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mega-link-title {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.25;
  transition: color 0.15s ease;
}

.mega-link-card:hover .mega-link-title {
  color: var(--color-primary);
}

.mega-link-card--ai:hover .mega-link-title {
  color: var(--color-secondary);
}

.mega-link-desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.35;
  margin-bottom: 0;
}