.about-lists {
  background: #e6f0fa;
  padding: 80px 0;
}

.upper-gap{
  padding-top: 25px;
}

/* Card Styling */
.content-card {
  background: #fff;
  border-radius: 18px;
  padding: 30px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  min-height: 320px;
  border: 1px solid rgba(0, 123, 255, 0.08); /* subtle border */
  overflow: hidden;
}

.content-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 18px;
  padding: 2px;
  background: linear-gradient(135deg, #4CBAEA, #007bff);
  -webkit-mask: 
    linear-gradient(#fff 0 0) content-box, 
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.content-card:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.content-card:hover::before {
  opacity: 1;
}

/* Number watermark */
.card-number {
  font-size: 2.8rem;
  font-weight: 800;
  color: #007bff;
  opacity: 0.08;
  position: absolute;
  top: 15px;
  right: 20px;
  pointer-events: none;
}

/* Title */
.content-card h4 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0C2D47;
  margin-bottom: 15px;
}

/* Text */
.card-text, 
.card-list {
  color: #555;
  line-height: 1.6;
  font-size: 1rem;
  margin-bottom: 20px;
}

/* Read More Button */
.readmore-btn {
  display: inline-block;
  padding: 10px 24px;
  border: 2px solid #4CBAEA;
  background: transparent;
  color: #4CBAEA;
  font-weight: 600;
  text-decoration: none;
  border-radius: 50px; /* pill button */
  cursor: pointer;
  transition: all 0.3s ease;
}

.readmore-btn:hover {
  background: #4CBAEA;
  color: #fff;
  box-shadow: 0 4px 12px rgba(76, 186, 234, 0.4);
  transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 768px) {
  .content-card {
    min-height: 280px;
    margin-bottom: 20px;
  }
  .content-card h4 {
    font-size: 1.3rem;
  }
  .card-text,
  .card-list {
    font-size: 0.95rem;
  }
}