body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #ffffff;
  color: #000;
}

header {
  background-color: #000;
  color: white;
  text-align: center;
  padding: 2rem 1rem;
}

.donate-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
}

.card-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  padding: 2rem;
  max-width: 1200px;
  margin: auto;
}

.card {
  flex: 0 0 calc(25% - 2rem); /* 4 cards per row, minus spacing */
  background-color: #f9f9f9;
  border: 1px solid #ccc;
  text-align: center;
  padding: 1rem;
  box-sizing: border-box;
  transition: box-shadow 0.3s ease;
}

.card img {
  max-width: 100%;
  height: auto;
  border: 1px solid #000;
}

.card {
  text-decoration: none;
}

.card p {
  display: block;
  margin-top: 1rem;
  font-weight: bold;
  text-decoration: none;
  color: #000;
  border-bottom: 2px solid #000;
  padding: 0.2rem 0;
}

.card:hover {
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

/* Responsive adjustment */
@media (max-width: 900px) {
  .card {
    flex: 0 0 calc(50% - 2rem); /* 2 per row */
  }
}

@media (max-width: 500px) {
  .card {
    flex: 0 0 100%; /* 1 per row */
  }
}