.authNet-donation-card {
  max-width: 420px;
  margin: 0 auto;
  padding: 32px;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.authNet-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #374151;
  margin-bottom: 8px;
}

.authNet-amount-row {
  position: relative;
  margin-bottom: 16px;
}

.authNet-dollar-sign {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  font-weight: 600;
  color: #6b7280;
  pointer-events: none;
}

.authNet-amount-input {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 14px 12px 30px;
  font-size: 20px;
  font-weight: 600;
  color: #111827;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  outline: none;
  transition: border-color 0.15s ease;
}

.authNet-amount-input:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.authNet-preset-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 20px;
}

.authNet-preset-btn {
  padding: 10px 0;
  font-size: 14px;
  font-weight: 600;
  color: #374151;
  background: #f9fafb;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.authNet-preset-btn:hover {
  background: #f3f4f6;
  border-color: #9ca3af;
}

.authNet-preset-btn-active {
  background: #2563eb;
  border-color: #2563eb;
  color: #ffffff;
}

.authNet-preset-btn-active:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
}

.authNet-captcha-wrap {
  margin-bottom: 20px;
}

.authNet-error-banner {
  background: #fdecea;
  border: 1px solid #f5c6cb;
  color: #611a15;
  border-radius: 6px;
  padding: 10px 14px;
  margin-bottom: 16px;
  font-size: 14px;
}

.authNet-donate-btn {
  width: 100%;
  padding: 14px 0;
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  background: #2563eb;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.authNet-donate-btn:hover {
  background: #1d4ed8;
}

.authNet-donate-btn:disabled {
  background: #93c5fd;
  cursor: not-allowed;
}