/* ============================================================
   SEÇÃO CHECKOUT — Light Mode
   ============================================================ */

.checkout {
  padding: var(--section-py) 0;
  background: var(--color-bg-alt);
  position: relative;
  overflow: hidden;
}

.checkout::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 80%, rgba(0, 180, 166, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 90% 20%, rgba(212, 160, 23, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.checkout__header {
  text-align: center;
  margin-bottom: var(--space-12);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.checkout__eyebrow {
  font-family: var(--font-body);
  font-size: var(--size-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-teal);
}

.checkout__title {
  font-size: clamp(var(--size-2xl), 4vw, var(--size-4xl));
  color: var(--color-text);
}

.checkout__subtitle {
  color: var(--color-text-muted);
  font-size: var(--size-lg);
  max-width: 480px;
}

/* --- GRID PRINCIPAL --- */
.checkout__grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: var(--space-8);
  align-items: start;
}

/* --- OPÇÕES DE PAGAMENTO --- */
.checkout__options {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.payment-option {
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  position: relative;
}

.payment-option:hover,
.payment-option.selected {
  border-color: rgba(0, 180, 166, 0.4);
  background: rgba(0, 180, 166, 0.02);
}

.payment-option--pix.selected {
  border-color: rgba(0, 180, 166, 0.5);
  background: rgba(0, 180, 166, 0.03);
}

/* Radio custom */
.payment-option__radio {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  flex-shrink: 0;
  margin-top: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.payment-option.selected .payment-option__radio {
  border-color: var(--color-teal);
  background: rgba(0, 180, 166, 0.12);
}

.payment-option.selected .payment-option__radio::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-teal);
}

.payment-option--pix.selected .payment-option__radio {
  border-color: var(--color-teal);
  background: rgba(0, 180, 166, 0.15);
}

.payment-option--pix.selected .payment-option__radio::after {
  background: var(--color-teal);
}

/* Conteúdo da opção */
.payment-option__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.payment-option__header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.payment-option__name {
  font-weight: var(--weight-bold);
  font-size: var(--size-md);
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.payment-option__icon { font-size: 1.25rem; }

.payment-option__highlight {
  font-size: var(--size-xs);
  font-weight: var(--weight-bold);
  padding: 2px var(--space-3);
  border-radius: var(--radius-full);
  letter-spacing: 0.06em;
}

.payment-option--pix .payment-option__highlight {
  background: rgba(0, 180, 166, 0.1);
  color: var(--color-teal);
  border: 1px solid rgba(0, 180, 166, 0.3);
}

.payment-option--card .payment-option__highlight {
  background: rgba(212, 160, 23, 0.1);
  color: var(--color-gold);
  border: 1px solid rgba(212, 160, 23, 0.25);
}

.payment-option__price-main {
  font-family: var(--font-display);
  font-size: var(--size-2xl);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  line-height: 1;
}

.payment-option--pix .payment-option__price-main {
  color: var(--color-teal);
}

.payment-option__price-detail {
  font-size: var(--size-xs);
  color: var(--color-text-light);
}

/* Parcelas do cartão */
.installments {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.installment {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.installment.selected,
.installment:hover {
  border-color: rgba(0, 180, 166, 0.35);
  background: rgba(0, 180, 166, 0.04);
}

.installment__n {
  font-family: var(--font-display);
  font-size: var(--size-lg);
  font-weight: var(--weight-bold);
  color: var(--color-teal);
  line-height: 1;
}

.installment__value {
  font-size: var(--size-xs);
  color: var(--color-text-muted);
}

.installment__total {
  font-size: var(--size-2xs);
  color: var(--color-text-light);
}

/* --- RESUMO DO PEDIDO --- */
.checkout__summary {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  position: sticky;
  top: calc(var(--header-total) + var(--space-4));
  box-shadow: var(--shadow-card);
}

.checkout__summary-title {
  font-size: var(--size-lg);
  color: var(--color-text);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

/* Produto no resumo */
.order-product {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.order-product__thumb {
  width: 64px;
  height: 64px;
  background: var(--color-bg-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.order-product__info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.order-product__name {
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  font-size: var(--size-sm);
}

.order-product__variant {
  font-size: var(--size-xs);
  color: var(--color-text-light);
}

.order-product__price {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  color: var(--color-teal);
}

/* Linhas de totais */
.order-lines {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.order-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--size-sm);
}

.order-line__label  { color: var(--color-text-muted); }
.order-line__value  { color: var(--color-text); font-weight: var(--weight-semibold); }
.order-line__value--discount { color: var(--color-teal); }
.order-line__value--free     { color: var(--color-teal); font-weight: var(--weight-bold); }

.order-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.order-total__label {
  font-weight: var(--weight-bold);
  color: var(--color-text);
}

.order-total__value {
  font-family: var(--font-display);
  font-size: var(--size-2xl);
  font-weight: var(--weight-bold);
  color: var(--color-teal);
}

/* Campo de cupom no resumo */
.order-coupon {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.order-coupon__label {
  font-size: var(--size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
  font-weight: var(--weight-semibold);
}

/* Botão finalizar — turquesa sólido */
.checkout__btn-finalize {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  background-color: var(--color-teal);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--size-md);
  font-weight: var(--weight-bold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-teal);
}

.checkout__btn-finalize:hover {
  background-color: var(--color-teal-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 32px rgba(0, 180, 166, 0.35);
}

.checkout__security-note {
  text-align: center;
  font-size: var(--size-xs);
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

/* --- RESPONSIVO --- */
@media (max-width: 900px) {
  .checkout__grid {
    grid-template-columns: 1fr;
  }
  .checkout__summary {
    position: static;
    order: -1;
  }
}

@media (max-width: 480px) {
  .installments { grid-template-columns: repeat(2, 1fr); }
}