/* ============================================
   Ball Transfer Systems - Mega Menu
   ============================================
   Full-width dropdown with product previews
   ============================================ */

/* ----------------------------------------
   Mega Menu Container
   ---------------------------------------- */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: white;
  box-shadow:
    0 10px 40px rgba(0, 0, 0, 0.1),
    0 2px 10px rgba(0, 0, 0, 0.05);
  border-top: 3px solid var(--color-accent);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
  z-index: 1000;
}

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

/* ----------------------------------------
   Mega Menu Inner Layout
   ---------------------------------------- */
.mega-menu__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-8);
  display: grid;
  grid-template-columns: 280px 1fr 300px;
  gap: var(--space-8);
}

/* ----------------------------------------
   Product Categories Column
   ---------------------------------------- */
.mega-menu__categories {
  border-right: 1px solid var(--color-border);
  padding-right: var(--space-6);
}

.mega-menu__category-title {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.mega-menu__category-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mega-menu__category-item {
  margin-bottom: var(--space-1);
}

.mega-menu__category-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.mega-menu__category-link:hover,
.mega-menu__category-link.active {
  background: var(--color-gray-50);
  color: var(--color-primary);
}

.mega-menu__category-link:hover .mega-menu__category-icon,
.mega-menu__category-link.active .mega-menu__category-icon {
  background: var(--color-primary);
  color: white;
}

.mega-menu__category-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gray-100);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.mega-menu__category-icon svg {
  width: 18px;
  height: 18px;
}

.mega-menu__category-name {
  flex: 1;
}

.mega-menu__category-arrow {
  width: 16px;
  height: 16px;
  opacity: 0;
  transform: translateX(-5px);
  transition: all 0.2s ease;
}

.mega-menu__category-link:hover .mega-menu__category-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ----------------------------------------
   Product Preview Column
   ---------------------------------------- */
.mega-menu__preview {
  padding: 0 var(--space-6);
}

.mega-menu__preview-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.mega-menu__preview-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  line-height: 1.6;
}

.mega-menu__preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.mega-menu__preview-item {
  text-decoration: none;
  color: inherit;
  text-align: center;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.mega-menu__preview-item:hover {
  background: var(--color-gray-50);
}

.mega-menu__preview-item:hover .mega-menu__preview-img {
  transform: scale(1.05);
}

.mega-menu__preview-img-wrap {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-2);
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--color-gray-50);
}

.mega-menu__preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.mega-menu__preview-name {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text);
}

.mega-menu__preview-capacity {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ----------------------------------------
   Featured/CTA Column
   ---------------------------------------- */
.mega-menu__featured {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  color: white;
  display: flex;
  flex-direction: column;
}

.mega-menu__featured-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(232, 106, 0, 0.2);
  border: 1px solid rgba(232, 106, 0, 0.3);
  color: var(--color-accent);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  width: fit-content;
  margin-bottom: var(--space-4);
}

.mega-menu__featured-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: white;
  margin-bottom: var(--space-2);
}

.mega-menu__featured-desc {
  font-size: var(--font-size-sm);
  opacity: 0.9;
  margin-bottom: var(--space-6);
  flex: 1;
}

.mega-menu__featured-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mega-menu__featured-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: white;
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: var(--space-2) 0;
  transition: all 0.2s ease;
}

.mega-menu__featured-link:hover {
  color: var(--color-accent);
}

.mega-menu__featured-link svg {
  width: 16px;
  height: 16px;
}

/* ----------------------------------------
   Quick Stats Row
   ---------------------------------------- */
.mega-menu__stats {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  gap: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-4);
}

.mega-menu__stat {
  text-align: center;
}

.mega-menu__stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary);
}

.mega-menu__stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ----------------------------------------
   Mobile Mega Menu
   ---------------------------------------- */
@media (max-width: 1024px) {
  .mega-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border-top: none;
    background: var(--color-gray-50);
    display: none;
  }

  .nav-dropdown.active .mega-menu {
    display: block;
  }

  .mega-menu__inner {
    grid-template-columns: 1fr;
    padding: var(--space-4);
    gap: var(--space-4);
  }

  .mega-menu__categories {
    border-right: none;
    padding-right: 0;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--space-4);
  }

  .mega-menu__preview,
  .mega-menu__featured,
  .mega-menu__stats {
    display: none;
  }
}

/* ----------------------------------------
   Animation enhancements
   ---------------------------------------- */
.mega-menu__category-item {
  opacity: 0;
  transform: translateX(-10px);
  animation: slideInCategory 0.3s ease forwards;
}

.mega-menu__category-item:nth-child(1) { animation-delay: 0.05s; }
.mega-menu__category-item:nth-child(2) { animation-delay: 0.1s; }
.mega-menu__category-item:nth-child(3) { animation-delay: 0.15s; }
.mega-menu__category-item:nth-child(4) { animation-delay: 0.2s; }
.mega-menu__category-item:nth-child(5) { animation-delay: 0.25s; }
.mega-menu__category-item:nth-child(6) { animation-delay: 0.3s; }
.mega-menu__category-item:nth-child(7) { animation-delay: 0.35s; }
.mega-menu__category-item:nth-child(8) { animation-delay: 0.4s; }
.mega-menu__category-item:nth-child(9) { animation-delay: 0.45s; }
.mega-menu__category-item:nth-child(10) { animation-delay: 0.5s; }
.mega-menu__category-item:nth-child(11) { animation-delay: 0.55s; }

@keyframes slideInCategory {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.nav-dropdown:not(:hover) .mega-menu__category-item {
  animation: none;
  opacity: 1;
  transform: none;
}

/* ----------------------------------------
   Reduced motion
   ---------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .mega-menu,
  .mega-menu__category-link,
  .mega-menu__preview-item,
  .mega-menu__preview-img,
  .mega-menu__category-item {
    transition: none;
    animation: none;
    opacity: 1;
    transform: none;
  }
}