.topics-card {
  background: #ffffff;
  border-radius: 20px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
  padding: 30px 40px;
  max-width: 700px;
  width: 100%;
}

.topics-card h2 {
  text-align: center;
  font-size: 28px;
  color: #2c3e50;
  margin-bottom: 25px;
  border-bottom: 2px solid #2c3e50;
  display: inline-block;
}

.topics-grid {
  display: flex;
  justify-content: space-between;
  gap: 25px;
  flex-wrap: wrap;
}

.topics-grid .left, .topics-grid .right {
  flex: 1;
}

.topics-grid ul {
  list-style: none;
  padding: 0;
}

.topics-grid li {
  padding: 10px 0;
  font-size: 14px;
  color: #34495e;
  border-bottom: 1px solid #e0e0e0;
}

.topics-grid li:last-child {
  border-bottom: none;
}

@media (max-width: 600px) {
  .topics-grid {
    flex-direction: column;
  }
}