/* ==========================================================================
   NexLead Digital - Premium 4-Column Mega Menu Styling
   ========================================================================== */

:root {
  --nxd-text-dark: #0F172A;
  --nxd-text-muted: #475569;
  --nxd-accent: #FF6A00;
  --nxd-accent-hover: #E55F00;
  --nxd-accent-light: #FFF4ED;
  --nxd-panel-bg: rgba(255, 255, 255, 0.94);
  --nxd-panel-border: rgba(226, 232, 240, 0.85);
  --nxd-card-bg: #F8FAFC;
  --nxd-card-border: rgba(226, 232, 240, 0.8);
  --nxd-card-hover-bg: #FFFFFF;
  --nxd-shadow: 0 20px 45px -10px rgba(15, 23, 42, 0.14);
  --nxd-panel-radius: 18px;
  --nxd-card-radius: 14px;
  --nxd-sub-radius: 8px;
  --nxd-transition-speed: 0.3s;
}

/* Mega Services Parent Trigger Button */
.mega-services {
  position: relative;
}

.nxd-mega-trigger {
  background: none;
  border: none;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  color: var(--nxd-text-dark);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: 8px;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nxd-mega-trigger:hover,
.mega-services.active .nxd-mega-trigger,
.mega-services.is-open .nxd-mega-trigger {
  color: var(--nxd-accent);
}

.nxd-mega-trigger .nav-caret {
  font-size: 12px;
  transition: transform 0.3s ease;
}

.mega-services.is-open .nxd-mega-trigger .nav-caret {
  transform: rotate(180deg);
}

/* 4-Column Mega Menu Overlay Panel */
.nxd-mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  width: 100vw;
  max-width: 1240px;
  padding: 0 20px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.28s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.28s;
  z-index: 1000;
}

.mega-services.is-open .nxd-mega-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(4px);
}

/* Glassmorphism Panel Container */
.nxd-mega-container {
  background: var(--nxd-panel-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--nxd-panel-border);
  border-radius: var(--nxd-panel-radius);
  box-shadow: var(--nxd-shadow);
  padding: 24px 28px;
  overflow: hidden;
}

/* Panel Header */
.nxd-mega-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}

.nxd-mega-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--nxd-accent);
  background: var(--nxd-accent-light);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 6px;
}

.nxd-mega-title h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--nxd-text-dark);
  margin: 0;
  line-height: 1.25;
}

.nxd-mega-viewall {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--nxd-accent);
  text-decoration: none;
  transition: gap 0.2s ease, color 0.2s ease;
}

.nxd-mega-viewall:hover {
  color: var(--nxd-accent-hover);
  gap: 12px;
}

/* 4-Column CSS Grid Layout */
.nxd-mega-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-height: 70vh;
  overflow-y: auto;
  padding-right: 4px;
}

/* Custom Scrollbar for Grid */
.nxd-mega-grid::-webkit-scrollbar {
  width: 5px;
}
.nxd-mega-grid::-webkit-scrollbar-track {
  background: rgba(241, 245, 249, 0.5);
  border-radius: 10px;
}
.nxd-mega-grid::-webkit-scrollbar-thumb {
  background: rgba(203, 213, 225, 0.8);
  border-radius: 10px;
}

/* Main Service Card Item */
.nxd-card-wrapper {
  display: flex;
  flex-direction: column;
}

.nxd-card {
  background: var(--nxd-card-bg);
  border: 1px solid var(--nxd-card-border);
  border-radius: var(--nxd-card-radius);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.25s ease,
              border-color 0.25s ease,
              box-shadow 0.25s ease,
              transform 0.25s ease;
}

.nxd-card:hover,
.nxd-card-wrapper.is-expanded .nxd-card {
  background: var(--nxd-card-hover-bg);
  border-color: var(--nxd-accent);
  box-shadow: 0 8px 20px -4px rgba(255, 106, 0, 0.15);
}

.nxd-card-icon {
  width: 38px;
  height: 38px;
  min-width: 38px;
  border-radius: 10px;
  background: var(--nxd-accent-light);
  color: var(--nxd-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.nxd-card:hover .nxd-card-icon,
.nxd-card-wrapper.is-expanded .nxd-card-icon {
  background: var(--nxd-accent);
  color: #FFFFFF;
  transform: scale(1.05);
}

.nxd-card-info {
  flex: 1;
  min-width: 0;
}

.nxd-card-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.nxd-card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--nxd-text-dark);
  line-height: 1.3;
  word-break: break-word;
}

/* Card Badges */
.nxd-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 12px;
  letter-spacing: 0.4px;
}

.nxd-badge-popular {
  background: #EFF6FF;
  color: #2563EB;
  border: 1px solid #BFDBFE;
}

.nxd-badge-hot {
  background: #FEF2F2;
  color: #DC2626;
  border: 1px solid #FECACA;
}

.nxd-card-chevron {
  color: var(--nxd-text-muted);
  font-size: 12px;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), color 0.25s ease;
}

.nxd-card:hover .nxd-card-chevron {
  color: var(--nxd-accent);
}

.nxd-card-wrapper.is-expanded .nxd-card-chevron {
  transform: rotate(180deg);
  color: var(--nxd-accent);
}

/* Sub-Services Inline Dropdown */
.nxd-sub-dropdown {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.25s ease;
  margin-top: 0;
}

.nxd-card-wrapper.is-expanded .nxd-sub-dropdown {
  max-height: 380px;
  opacity: 1;
  margin-top: 8px;
}

.nxd-sub-list {
  list-style: none;
  padding: 8px;
  margin: 0;
  background: #FFFFFF;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 12px;
  box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.06);
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 280px;
  overflow-y: auto;
}

.nxd-sub-list::-webkit-scrollbar {
  width: 4px;
}
.nxd-sub-list::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 4px;
}

.nxd-sub-item {
  margin: 0;
}

.nxd-sub-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--nxd-sub-radius);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  color: var(--nxd-text-muted);
  transition: background-color 0.2s ease, color 0.2s ease, padding-left 0.2s ease;
}

.nxd-sub-icon {
  font-size: 10px;
  color: #94A3B8;
  transition: color 0.2s ease, transform 0.2s ease;
}

.nxd-sub-title {
  flex: 1;
  line-height: 1.3;
}

.nxd-sub-arrow {
  font-size: 11px;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.2s ease, transform 0.2s ease, color 0.2s ease;
  color: var(--nxd-accent);
}

.nxd-sub-link:hover {
  background: var(--nxd-accent-light);
  color: var(--nxd-text-dark);
  font-weight: 600;
  padding-left: 14px;
}

.nxd-sub-link:hover .nxd-sub-icon {
  color: var(--nxd-accent);
}

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

/* Panel Footer */
.nxd-mega-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(226, 232, 240, 0.7);
  font-size: 13px;
  color: var(--nxd-text-muted);
}

.nxd-footer-tagline {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

.nxd-footer-tagline i {
  color: var(--nxd-accent);
}

.nxd-footer-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nxd-btn-sm {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--nxd-accent);
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 8px;
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.nxd-btn-sm:hover {
  background: var(--nxd-accent-hover);
  transform: translateY(-1px);
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */

/* Tablet Layout (768px to 1199px): 2 Columns */
@media (max-width: 1199px) {
  .nxd-mega-menu {
    max-width: 900px;
  }
  .nxd-mega-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile Drawer Flow (<768px): 1 Column Accordion */
@media (max-width: 767px) {
  .nxd-mega-menu {
    position: static;
    transform: none !important;
    width: 100%;
    max-width: 100%;
    padding: 0;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    display: none;
  }

  .mega-services.is-open .nxd-mega-menu {
    display: block;
  }

  .nxd-mega-container {
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: none;
    box-shadow: none;
    padding: 12px 0;
    border-radius: 0;
  }

  .nxd-mega-header {
    display: none;
  }

  .nxd-mega-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    max-height: none;
  }

  .nxd-mega-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}