.ec-class-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--ec-radius-xl);
  border: 1px solid rgba(28, 43, 74, 0.12);
  background: var(--ec-surface);
  box-shadow:
    0 10px 30px rgba(36, 41, 46, 0.1),
    0 2px 8px rgba(36, 41, 46, 0.06);
  transition: transform var(--ec-dur-2) var(--ec-ease), box-shadow var(--ec-dur-2) var(--ec-ease);
  height: 100%;
}

.ec-class-card:hover {
  box-shadow:
    0 18px 40px rgba(36, 41, 46, 0.16),
    0 6px 14px rgba(36, 41, 46, 0.08);
}

.ec-class-card.is-overlay-open,
.ec-class-card.is-overlay-open:hover {
  transform: none;
}

.ec-class-card__image,
.ec-class-card__imagePlaceholder {
  display: block;
  width: 100%;
  height: 180px;
}

.ec-class-card__image {
  object-fit: cover;
  object-position: top center;
}

.ec-class-card__imagePlaceholder {
  background: linear-gradient(
    135deg,
    rgba(59, 130, 246, 0.17) 0%,
    rgba(16, 185, 129, 0.14) 100%
  );
}

.ec-class-card__content {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--ec-2);
  padding: var(--ec-5);
  height: 100%;
}

.ec-class-card__program {
  width: fit-content;
  border-radius: 999px;
  padding: 4px 10px;
  background: rgba(16, 185, 129, 0.12);
  color: #0f6f52;
  font-size: var(--ec-text-sm);
  font-weight: 800;
}

.ec-class-card__title {
  margin: 0;
  font-size: var(--ec-text-xl);
  line-height: 1.2;
}

.ec-class-card__teacher {
  margin: 0;
  color: var(--ec-muted);
  font-size: var(--ec-text-sm);
  font-weight: 700;
}

.ec-class-card__description {
  margin: var(--ec-1) 0 0;
  color: var(--ec-muted);
  line-height: var(--ec-leading-normal);
  font-size: var(--ec-text-sm);
}

.ec-class-card__actions {
  margin-top: auto;
  display: flex;
  justify-content: center;
}

.ec-class-card__overlay {
  display: flex;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.55);
  justify-content: center;
  align-items: center;
  padding: var(--ec-4);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--ec-dur-2) var(--ec-ease), visibility var(--ec-dur-2) var(--ec-ease);
}

.ec-class-card__overlay.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.ec-class-card__overlayPanel {
  position: relative;
  width: min(960px, 92vw);
  max-height: 88vh;
  overflow: auto;
  background: #fff;
  color: #1f2937;
  border-radius: 16px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
  transform: translateY(12px) scale(0.985);
  transition: transform var(--ec-dur-2) var(--ec-ease);
  will-change: transform;
}

.ec-class-card__overlay.is-open .ec-class-card__overlayPanel {
  transform: translateY(0) scale(1);
}

.ec-class-card__overlayClose {
  position: absolute;
  top: var(--ec-3);
  right: var(--ec-3);
  z-index: 2;
  border: 1px solid #cbd5e1;
  background: rgba(255, 255, 255, 0.96);
  color: #111827;
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 700;
  cursor: pointer;
}

.ec-class-card__overlayClose:hover {
  background: #f8fafc;
}

.ec-class-card__overlayVideo {
  margin: 2rem;
}

.ec-class-card__overlayVideo video,
.ec-class-card__overlayVideo img {
  display: block;
  width: 100%;
  max-height: min(54vh, 34rem);
  object-fit: cover;
  border-radius: var(--ec-radius-xl);
}

.ec-class-card__overlayLayout--split {
  display: grid;
  gap: var(--ec-4);
  padding: var(--ec-6);
}

.ec-class-card__overlayLayout--split .ec-class-card__overlayBody {
  padding: 0;
}

.ec-class-card__overlayMedia video,
.ec-class-card__overlayMedia img {
  display: block;
  width: 100%;
  max-height: min(54vh, 34rem);
  object-fit: cover;
  border-radius: var(--ec-radius-xl);
}

.ec-class-card__overlayBody {
  padding: var(--ec-6);
}

.ec-class-card__overlayTitle {
  margin: 0;
  font-size: var(--ec-text-2xl);
  line-height: 1.15;
}

.ec-class-card__overlayProgram {
  margin-top: var(--ec-3);
  width: fit-content;
  border-radius: 999px;
  padding: 4px 10px;
  background: rgba(16, 185, 129, 0.12);
  color: #0f6f52;
  font-size: var(--ec-text-sm);
  font-weight: 800;
}

.ec-class-card__overlayDescription {
  margin: var(--ec-4) 0 0;
  color: var(--ec-muted);
  line-height: var(--ec-leading-normal);
  font-size: var(--ec-text-base);
}

@media (min-width: 769px) {
  .ec-class-card__overlayLayout--split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
    align-items: start;
  }
}

@media (max-width: 768px) {
  .ec-class-card__overlayBody {
    padding: var(--ec-5);
  }

  .ec-class-card__overlayLayout--split {
    padding: var(--ec-5);
    grid-template-columns: 1fr;
  }
}