/* ===== Premium fintech Mega Menu (Products) ===== */
:root {
  --mega-violet: #6C3BFF;
  --mega-violet-light: rgba(108, 59, 255, 0.08);
  --mega-violet-border: rgba(108, 59, 255, 0.2);
  --mega-shadow: 0 20px 50px rgba(15, 23, 42, 0.12);
  --mega-radius: 18px;
  --mega-font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Desktop: mega panel (hidden by default) */
.nav-mega {
  position: fixed;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  top: 72px;
  width: calc(100% - 2rem);
  max-width: 900px;
  background: #fff;
  border-radius: var(--mega-radius);
  box-shadow: var(--mega-shadow);
  padding: 1.5rem 1.5rem 1.75rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
  z-index: 99;
  font-family: var(--mega-font);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.nav-item.has-mega.is-open .nav-mega {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(4px);
}

.mega-title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #64748b;
  margin: 0 0 1rem 0;
}

.mega-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

/* Left column: product list */
.mega-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mega-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  text-decoration: none;
  color: #0f172a;
  transition: background 0.2s ease, color 0.2s ease;
  border: 1px solid transparent;
}

.mega-item:hover,
.mega-item:focus {
  background: var(--mega-violet-light);
  outline: none;
}

.mega-item.is-active,
.mega-item:focus-visible {
  background: var(--mega-violet-light);
  border-color: var(--mega-violet-border);
}

.mega-item.is-active .mega-item-title {
  color: var(--mega-violet);
}

.mega-item-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--mega-violet-light);
}

.mega-item-icon img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.mega-item-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.mega-item-title {
  font-size: 0.9375rem;
  font-weight: 600;
  display: block;
  transition: color 0.2s ease;
}

.mega-item-desc {
  font-size: 0.8125rem;
  color: #64748b;
  line-height: 1.4;
}

/* Right column: dynamic preview */
.mega-preview {
  position: sticky;
  top: 0.5rem;
}

.mega-preview-image-wrap {
  border-radius: 12px;
  overflow: hidden;
  background: #f8fafc;
  margin-bottom: 1rem;
  aspect-ratio: 16 / 10;
}

.mega-preview-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity 0.25s ease;
}

.mega-preview-image.is-changing {
  opacity: 0;
}

.mega-preview-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #0f172a;
  margin: 0 0 0.35rem 0;
}

.mega-preview-desc {
  font-size: 0.9375rem;
  color: #64748b;
  line-height: 1.5;
  margin: 0;
}

/* Hide mega panel on tablet/mobile; show only desktop */
@media (max-width: 991px) {
  .nav-mega {
    display: none !important;
  }
}

/* Tablet: stacked layout (if we ever show mega on tablet via a different trigger) */
@media (min-width: 768px) and (max-width: 991px) {
  .mega-inner {
    grid-template-columns: 1fr;
  }
  .mega-preview {
    order: -1;
  }
}

/* Mobile accordion (inside .header-mobile-nav) */
.nav-mega-accordion {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-left: 0.5rem;
}

.mega-accordion-item {
  display: block;
  padding: 0.65rem 0.5rem;
  text-decoration: none;
  color: #0f172a;
  font-weight: 500;
  border-radius: 8px;
  transition: background 0.2s ease;
}

.mega-accordion-item:hover {
  background: var(--mega-violet-light);
}

.mega-accordion-title {
  display: block;
  font-size: 0.9375rem;
}

.mega-accordion-desc {
  display: block;
  font-size: 0.8125rem;
  color: #64748b;
  margin-top: 0.2rem;
  font-weight: 400;
}

.header-mobile-nav .nav-mobile-products.is-open .nav-mega-accordion {
  max-height: 380px;
}

.header-mobile-nav .nav-mobile-services.is-open .nav-mega-accordion {
  max-height: 620px;
}

/* Ensure desktop nav dropdown styles don't apply to mega */
.nav-item.has-mega .nav-mega {
  min-width: auto;
  padding: 1.5rem 1.5rem 1.75rem;
}

/* Only show mega on desktop when Products is hovered/open */
@media (min-width: 992px) {
  .nav-item.has-mega .nav-mega {
    display: block;
  }
}

/* ===== Services Mega Menu (grid layout) ===== */
.mega-services {
  max-width: 1100px;
  padding: 2rem 2rem 2.25rem;
}

.mega-services .mega-title {
  margin-bottom: 1.25rem;
}

.mega-services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem 1.25rem;
}

.mega-service-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  text-decoration: none;
  color: #0f172a;
  border: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.mega-service-card:hover,
.mega-service-card:focus {
  background: var(--mega-violet-light);
  border-color: var(--mega-violet-border);
  box-shadow: 0 4px 12px rgba(108, 59, 255, 0.08);
  outline: none;
}

.mega-service-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--mega-violet-light);
  color: var(--mega-violet);
}

.mega-service-icon svg {
  width: 22px;
  height: 22px;
}

.mega-service-text {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
}

.mega-service-title {
  font-size: 0.9375rem;
  font-weight: 600;
  display: block;
}

.mega-service-desc {
  font-size: 0.8125rem;
  color: #64748b;
  line-height: 1.4;
}

@media (min-width: 768px) and (max-width: 991px) {
  .mega-services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .mega-services-grid {
    grid-template-columns: 1fr;
  }
}