.checkout__layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-xl);
  align-items: start;
}

.checkout__form h2 {
  margin-bottom: var(--space-md);
}

.checkout__tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: var(--space-md);
}

.checkout__tab {
  flex: 1;
  padding: 0.75rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: var(--text-sm);
  font-weight: 700;
  transition: all 0.2s;
}

.checkout__tab--active {
  border-color: var(--accent);
  color: var(--accent);
}

.checkout__fields {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.checkout__fields input,
.checkout__fields textarea {
  width: 100%;
  background: rgba(82,183,136,0.05);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  color: var(--cream);
  font-size: var(--text-sm);
  font-family: var(--font);
  transition: border-color 0.2s;
}

.checkout__fields input:focus,
.checkout__fields textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.checkout__fields input::placeholder,
.checkout__fields textarea::placeholder {
  color: var(--muted);
}

.checkout__envio-info {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: rgba(82,183,136,0.05);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: var(--text-sm);
}

.checkout__tienda-info {
  padding: var(--space-sm) 1rem;
  background: rgba(82,183,136,0.05);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
}

.checkout__tienda-info p {
  font-size: var(--text-sm);
  color: var(--cream);
  max-width: none;
}

.checkout__summary {
  background: rgba(82,183,136,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  position: sticky;
  top: calc(var(--header-h) + 1rem);
}

.checkout__summary h3 {
  font-size: var(--text-base);
  font-weight: 900;
}

.checkout__item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-sm);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}

.checkout__item-name { color: var(--cream); }
.checkout__item-qty  { color: var(--muted); font-size: 0.75rem; }
.checkout__item-price { color: var(--accent); font-weight: 700; }

.checkout__totales {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: var(--space-sm);
}

.checkout__row {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-sm);
  color: var(--muted);
}

.checkout__row--total {
  font-size: var(--text-base);
  font-weight: 900;
  color: var(--cream);
  border-top: 1px solid var(--border);
  padding-top: var(--space-sm);
}

.checkout__btn-pagar {
  width: 100%;
  background: var(--cta);
  color: #fff;
  font-weight: 800;
  font-size: var(--text-sm);
  padding: 1rem;
  border-radius: var(--radius);
  transition: opacity 0.2s;
  margin-top: var(--space-sm);
  text-align: center;
}

.checkout__btn-pagar:hover { opacity: 0.88; }

@media (max-width: 768px) {
  .checkout__layout {
    grid-template-columns: 1fr;
  }

  .checkout__summary {
    position: static;
  }
}
/* Asteriscos requeridos */
label .req {
  color: #E63946;
  font-size: 0.7rem;
  margin-left: 2px;
  vertical-align: super;
}

/* Cards */
.checkout__card {
  background: rgba(82,183,136,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  margin-bottom: var(--space-sm);
}

.checkout__card-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--cream);
  margin-bottom: var(--space-sm);
}

/* Fields */
.checkout__field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.checkout__field label {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.checkout__field select {
  width: 100%;
  background: rgba(82,183,136,0.05);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  color: var(--cream);
  font-size: var(--text-sm);
  font-family: var(--font);
  transition: border-color 0.2s;
  appearance: none;
  cursor: pointer;
}

.checkout__field select:focus {
  outline: none;
  border-color: var(--accent);
}

.checkout__field select option {
  background: #1A3C2E;
  color: var(--cream);
}

.checkout__field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

/* Validación */
.checkout__field input.error,
.checkout__field select.error {
  border-color: #E63946;
}

.checkout__field .field-error {
  font-size: 0.75rem;
  color: #E63946;
  margin-top: 0.2rem;
}

/* Envío badge */
.checkout__envio-badge {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: rgba(82,183,136,0.08);
  border: 1.5px solid var(--accent);
  border-radius: var(--radius);
  font-size: var(--text-sm);
  color: var(--muted);
}

.checkout__envio-badge strong {
  color: var(--accent);
  font-weight: 900;
}

/* Tienda info */
.checkout__tienda-info p {
  max-width: none;
  line-height: 1.8;
}

/* Seguro */
.checkout__seguro {
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  max-width: none;
  margin-top: 0;
}

@media (max-width: 480px) {
  .checkout__field-row {
    grid-template-columns: 1fr;
  }
}