/* ============================================
   RESEARCH AREAS SECTION
   ============================================ */

.areas__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.area-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-base);
}

.area-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-primary);
  transition: height var(--transition-base);
}

.area-card:hover::before {
  height: 6px;
}

.area-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.area-card:nth-child(1)::before { background: var(--color-primary); }
.area-card:nth-child(2)::before { background: var(--color-accent); }
.area-card:nth-child(3)::before { background: var(--color-secondary); }
.area-card:nth-child(4)::before { background: var(--progress-76-100); }
.area-card:nth-child(5)::before { background: var(--progress-0-25); }
.area-card:nth-child(6)::before { background: #6C63FF; }

.area-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: var(--space-5);
}

.area-card:nth-child(1) .area-card__icon { background: rgba(var(--color-primary-rgb), 0.1); }
.area-card:nth-child(2) .area-card__icon { background: rgba(var(--color-accent-rgb), 0.1); }
.area-card:nth-child(3) .area-card__icon { background: rgba(var(--color-secondary-rgb), 0.1); }
.area-card:nth-child(4) .area-card__icon { background: rgba(0, 132, 61, 0.1); }
.area-card:nth-child(5) .area-card__icon { background: rgba(227, 25, 55, 0.1); }
.area-card:nth-child(6) .area-card__icon { background: rgba(108, 99, 255, 0.1); }

.area-card__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.area-card__description {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
}

.area-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

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

@media (max-width: 768px) {
  .areas__grid { grid-template-columns: 1fr; }
}