/* ============================================
   PROBLEMS SECTION
   ============================================ */
.problems {
  padding: var(--section-py) 0;
  background: var(--gray-50);
  position: relative;
}

.problems-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.problem-card {
  background: var(--white);
  border-radius: var(--radius-2xl);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition-base);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.problem-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--green-100);
}

.problem-card:hover::before {
  transform: scaleX(1);
}

.problem-icon {
  width: 68px;
  height: 68px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 22px;
  background: linear-gradient(135deg, var(--green-50), var(--green-100));
  transition: all var(--transition-base);
}

.problem-card:hover .problem-icon {
  background: var(--gradient-green);
  transform: scale(1.1) rotate(-3deg);
  box-shadow: var(--shadow-green);
}

.problem-card:hover .problem-icon svg {
  stroke: white;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 10px;
}

.problem-card p {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.65;
}