.testimonial-card {
  flex: 0 0 48%;
  background-color: #ffffff;
  border-radius: 12px;
  padding: 48px; /* 20px */
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.testimonial-grid {
  display: flex;
  flex-wrap: wrap;
  grid-row-gap: 20px;
  grid-column-gap: 10px;
}