/* =============================================
   CARDS.CSS — Course cards & grid
   ============================================= */

/* ---- Courses grid ---- */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

/* ---- Course card ---- */
.course-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.course-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-accent-dim), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.course-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card), 0 0 30px var(--color-accent-dim);
}

.course-card:hover::after {
  opacity: 1;
}

.course-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
  display: block;
  position: relative;
  z-index: 1;
}

.course-card h3 {
  font-size: var(--fs-xl);
  color: var(--color-white);
  margin-bottom: var(--space-xs);
  position: relative;
  z-index: 1;
}

.course-card p {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.card-link {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.05em;
  transition: letter-spacing var(--transition-fast);
  position: relative;
  z-index: 1;
}

.card-link:hover {
  letter-spacing: 0.1em;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .courses-grid {
    grid-template-columns: 1fr;
  }
}