/* Card hover effects */
.course-card {
  transition: all 0.3s ease;
  position: relative;
}

.course-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Hover popup tooltip (default cards) */
.hover-popup {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  width: 280px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  padding: 16px;
  font-size: 0.875rem;
  z-index: 50;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  border: 1px solid #e5e7eb;
  pointer-events: none;
}

.course-card:hover .hover-popup {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.hover-popup::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border-width: 8px;
  border-style: solid;
  border-color: white transparent transparent transparent;
  filter: drop-shadow(0 2px 2px rgba(0,0,0,0.1));
}

/* Carousel popup (NexloClass-like side panel) */
.popular-courses-slider {
  position: relative;
  overflow: visible;
}

.popular-courses-slider .embla__viewport {
  overflow: visible;
}

.popular-courses-slider .embla__container {
  display: flex;
  gap: 1rem;
  will-change: transform;
}

.popular-courses-slider .embla__slide {
  min-width: 0;
  flex: 0 0 calc((100% - 3rem) / 4);
}

.slider-card {
  overflow: visible;
  z-index: 1;
}

.slider-card.popup-open {
  z-index: 60;
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.slider-card .hover-popup {
  top: -10px;
  bottom: auto;
  left: calc(100% + 8px);
  width: 355px;
  min-height: 520px;
  padding: 20px;
  border-radius: 10px;
  border: 1px solid #d4d4d8;
  transform: translateY(8px);
  box-shadow: 0 16px 38px rgba(17, 24, 39, 0.22);
  z-index: 80;
  pointer-events: auto;
}

.slider-card:hover .hover-popup {
  transform: translateY(0);
}

.slider-card.popup-open .hover-popup {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.slider-card .hover-popup::after {
  top: 52%;
  left: -8px;
  transform: none;
  border-width: 8px 8px 8px 0;
  border-color: transparent white transparent transparent;
  filter: drop-shadow(-2px 1px 1px rgba(0, 0, 0, 0.06));
}

.slider-card.popup-left .hover-popup {
  left: auto;
  right: calc(100% + 8px);
}

.slider-card.popup-left .hover-popup::after {
  left: auto;
  right: -8px;
  border-width: 8px 0 8px 8px;
  border-color: transparent transparent transparent white;
  filter: drop-shadow(2px 1px 1px rgba(0, 0, 0, 0.06));
}

.slider-card .hover-popup h4 {
  font-size: 1.1rem;
  line-height: 1.2;
  font-weight: 800;
  color: #1f2937;
  margin-bottom: 10px;
}

.slider-card .hover-popup .popup-badges {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}

.slider-card .hover-popup .popup-badge {
  border-radius: 6px;
  padding: 3px 10px;
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1.3;
}

.slider-card .hover-popup .popup-badge-premium {
  background: #5b21b6;
  color: #ffffff;
}

.slider-card .hover-popup .popup-badge-best {
  background: #c7f0ec;
  color: #075985;
}

.slider-card .hover-popup .popup-updated {
  color: #6b7280;
  font-size: 0.92rem;
  margin-bottom: 6px;
}

.slider-card .hover-popup .popup-updated strong {
  color: #065f46;
}

.slider-card .hover-popup .popup-meta {
  color: #6b7280;
  font-size: 0.92rem;
  margin-bottom: 12px;
}

.slider-card .hover-popup .popup-desc {
  color: #374151;
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 12px;
}

.slider-card .hover-popup .popup-list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.slider-card .hover-popup .popup-list li {
  display: flex;
  gap: 10px;
  color: #374151;
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 10px;
}

.slider-card .hover-popup .popup-check {
  color: #111827;
  font-weight: 700;
}

.slider-card .hover-popup .popup-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: auto;
}

.slider-card .hover-popup .popup-cart-btn {
  flex: 1;
  background: #6d28d9;
  color: #ffffff;
  border: 0;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 12px 14px;
  line-height: 1.2;
}

.slider-card .hover-popup .popup-cart-btn:hover {
  background: #5b21b6;
}

.slider-card .hover-popup .popup-wishlist-btn {
  width: 46px;
  height: 46px;
  border-radius: 999px;
  border: 1.5px solid #6d28d9;
  color: #6d28d9;
  background: #ffffff;
  font-size: 1.3rem;
  line-height: 1;
}

@media (max-width: 768px) {
  .popular-courses-slider .embla__slide {
    flex: 0 0 calc((100% - 1rem) / 2);
  }

  .hover-popup {
    width: 240px;
    left: 0;
    transform: translateX(0) translateY(-10px);
  }

  .course-card:hover .hover-popup {
    transform: translateX(0) translateY(0);
  }

  .hover-popup::after {
    left: 20px;
  }

  .popular-courses-slider {
    overflow: hidden;
  }

  .popular-courses-slider .embla__viewport {
    overflow: hidden;
  }

  .slider-card .hover-popup {
    display: none;
  }
}

@media (max-width: 640px) {
  .popular-courses-slider .embla__slide {
    flex: 0 0 100%;
  }
}

/* Custom scrollbar for trending skills */
.trending-scroll {
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: #7e22ce #f3f3f3;
}

.trending-scroll::-webkit-scrollbar {
  height: 6px;
}

.trending-scroll::-webkit-scrollbar-track {
  background: #f3f3f3;
  border-radius: 10px;
}

.trending-scroll::-webkit-scrollbar-thumb {
  background: #7e22ce;
  border-radius: 10px;
}