.topup-subtitle {
  font-size: 0.875rem;
  color: var(--neutral-600, #666);
  font-weight: 500;
}

.topup-bal {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--black, #000);
  margin-bottom: 1rem;
}

/* Form Styles */
.topup-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.field-span {
  display: flex;
  flex-direction: row;
  gap: 0.75rem;
}
.field label,
.field-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--black, #000);
}

.field-title {
  margin: 0;
}

/* Input Field */
.field input[type="number"] {
  padding: 0.75rem 1rem;
  border: 1px solid #d0d0d0;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s ease;
}

.field input[type="number"]:focus {
  outline: none;
  border-color: var(--nimon-yellow-muted, #ffc107);
  box-shadow: 0 0 0 3px rgba(255, 193, 7, 0.1);
}

/* Quick Top-up Checkboxes */
.field:has(.quick-topup) {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.field:has(.quick-topup) .field-title {
  grid-column: 1 / -1;
}

.quick-topup {
  display: none;
}

.quick-topup + label {
  padding: 0.75rem 1rem;
  border: 1px solid #d0d0d0;
  border-radius: 8px;
  text-align: center;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  background: white;
  color: var(--black, #000);
}

.quick-topup:checked + label {
  background: #2196f3;
  color: white;
  border-color: #2196f3;
}

.quick-topup + label:hover {
  border-color: #2196f3;
}

#credit-card-icon {
  width: 1.5em;
  height: 1.5em;
  vertical-align: top;
  stroke-width: 2;
  fill: none;
  stroke: var(--nimon-yellow);
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Responsive */
@media (max-width: 480px) {
  .topup-container {
    padding: 1.5rem;
    gap: 1rem;
  }

  .field:has(button) {
    flex-direction: column;
  }

  .btn-secondary,
  .btn-primary {
    width: 100%;
  }
}