#custom-donation-panel {
  width: 100%;
  padding: 28px 20px 40px;
  box-sizing: border-box;
}

.custom-donation-inner {
  max-width: 360px;
  margin: 0 auto;
}

.custom-donation-title {
  margin: 0 0 20px;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
  color: #111827;
}

.custom-donation-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.custom-donation-amount {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 12px 8px;
  border: 2px solid #3872dc;
  border-radius: 12px;
  background: #fff;
  color: #3872dc;
  font-size: 18px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.custom-donation-amount:hover:not(.is-disabled):not(:disabled) {
  background: #3872dc;
  color: #fff;
  transform: translateY(-1px);
}

.custom-donation-amount.is-disabled,
.custom-donation-amount:disabled {
  border-color: #d1d5db;
  color: #9ca3af;
  background: #f9fafb;
  cursor: not-allowed;
  opacity: 0.85;
}

@media (max-width: 959px) {
  #custom-donation-panel {
    padding: 24px 20px 32px;
  }

  .custom-donation-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}