.vsertam-mega-menu {
  display: flex;
  background: var(--bg-color);
  font-size: var(--font-size);
  padding: 15px 20px;
  gap: 25px;
  flex-wrap: wrap;
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
  border-radius: 10px;
  position: relative;
  z-index: 9999;
}

.vsertam-column {
  flex: 1 1 calc(100% / var(--columns));
  min-width: 180px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.vsertam-menu-item {
  position: relative;
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background 0.3s ease, color 0.3s ease;
}

.vsertam-menu-item > a {
  flex: 1;
  color: #333;
  text-decoration: none;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color 0.3s ease;
}

.vsertam-menu-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: 6px;
  transition: transform 0.3s ease;
}

.vsertam-menu-item:hover,
.vsertam-menu-item.active {
  background: var(--hover-color);
  color: #fff;
}

.vsertam-menu-item:hover > a,
.vsertam-menu-item.active > a {
  color: #fff;
}

.vsertam-menu-item:hover .vsertam-menu-img,
.vsertam-menu-item.active .vsertam-menu-img {
  transform: scale(1.1);
}

.vsertam-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 12px;
  text-transform: uppercase;
  color: #fff;
  user-select: none;
}

.vsertam-badge.new {
  background: #2ecc71;
}

.vsertam-badge.sale {
  background: #e74c3c;
}

.vsertam-menu-item .submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-color);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  padding: 20px;
  border-radius: 12px;
  min-width: 320px;
  z-index: 10000;
  transition: opacity 0.25s ease, transform 0.25s ease;
  opacity: 0;
  transform: translateY(15px);
}

.vsertam-menu-item:hover > .submenu {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  opacity: 1;
  transform: translateY(0);
}

/* Nested submenu flyout */
.vsertam-menu-item .submenu .submenu {
  top: 0;
  left: 100%;
  margin-left: 8px;
  border-radius: 10px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.12);
  position: absolute;
  padding: 15px;
  min-width: 240px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  transform: translateY(10px);
}

.vsertam-menu-item .submenu .vsertam-menu-item:hover > .submenu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* Submenu links */
.vsertam-menu-item .submenu a {
  padding: 8px 10px;
  color: #444;
  border-radius: 6px;
  display: block;
  text-decoration: none;
  transition: background 0.3s ease, color 0.3s ease;
  font-weight: 500;
}

.vsertam-menu-item .submenu a:hover {
  background: var(--hover-color);
  color: #fff;
}

/* Responsive / mobile */
@media (max-width: 768px) {
  .vsertam-mega-menu {
    flex-direction: column;
    padding: 10px;
  }
  .vsertam-column {
    width: 100%;
  }
  .vsertam-menu-item .submenu {
    position: relative;
    top: auto;
    left: auto;
    box-shadow: none;
    padding: 0;
    display: none;
    opacity: 1 !important;
    transform: none !important;
    min-width: auto;
    grid-template-columns: none !important;
  }
  .vsertam-menu-item.active > .submenu {
    display: block;
  }
  /* Nested submenu adjustments */
  .vsertam-menu-item .submenu .submenu {
    position: relative;
    left: 0;
    margin-left: 0;
    box-shadow: none;
    padding-left: 15px;
  }
}