/* ==========================================================================
   PeptixHouse — Estilos de /checkout.html
   Mismo sistema de diseño que /carrito.html (Apple/Stripe/Shopify, retícula
   de 8px). Variables --checkout-* duplicadas a propósito porque esta página
   no carga carrito.css (solo header.css + checkout.css).
   ========================================================================== */

/* === VARIABLES === */
:root {
  --checkout-bg: #FCFCFD;
  --checkout-card-bg: #FFFFFF;
  --checkout-surface-subtle: #F7F8FA;
  --checkout-mint: #B8DDD1;
  --checkout-mint-dark: #7FBFAB;
  --checkout-text: #1A2332;
  --checkout-text-secondary: #6B7684;
  --checkout-text-tertiary: #9BA3AF;
  --checkout-border: #E8ECEF;
  --checkout-border-subtle: #ECEEF1;
  --checkout-divider: #F1F4F6;
  --checkout-error: #E63946;
  --checkout-success: #10B981;

  --checkout-font: 'Inter', 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 40px;
  --space-7: 48px;
  --space-8: 64px;

  --checkout-radius-img: 16px;
  --checkout-radius-card: 16px;
  --checkout-radius-pill: 26px;
  --checkout-radius-sm: 10px;

  --checkout-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --checkout-shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
  --checkout-shadow-lg: 0 16px 32px rgba(15, 23, 42, 0.10);

  --checkout-transition: 0.2s ease;
  --checkout-transition-slow: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* === RESET === */
.checkout-page *,
.checkout-page *::before,
.checkout-page *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.checkout-page {
  background: var(--checkout-bg);
  color: var(--checkout-text);
  font-family: var(--checkout-font);
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}

.checkout-page a {
  text-decoration: none;
  color: inherit;
}

.checkout-page button {
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: none;
}

.checkout-page img {
  max-width: 100%;
  display: block;
}

.checkout-page a:focus-visible,
.checkout-page button:focus-visible,
.checkout-page input:focus-visible {
  outline: 2px solid var(--checkout-mint-dark);
  outline-offset: 2px;
}

/* === ANIMACIONES DE ENTRADA === */
@keyframes checkout-fade-in-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.checkout-page .checkout-breadcrumb,
.checkout-page .checkout-form-card,
.checkout-page .checkout-summary {
  animation: checkout-fade-in-up 0.5s var(--checkout-transition-slow) both;
}

.checkout-page .checkout-summary { animation-delay: 0.12s; }

@media (prefers-reduced-motion: reduce) {
  .checkout-page *,
  .checkout-page *::before,
  .checkout-page *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0s !important;
    transition-duration: 0.01ms !important;
  }
}

/* === BREADCRUMB === */
.checkout-breadcrumb {
  border-bottom: 1px solid var(--checkout-divider);
}

.checkout-breadcrumb__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: var(--space-3) var(--space-6);
  font-size: 13px;
  color: var(--checkout-text-secondary);
}

.checkout-breadcrumb__inner a {
  transition: color var(--checkout-transition);
}

.checkout-breadcrumb__inner a:hover {
  color: var(--checkout-text);
}

.checkout-breadcrumb__inner span {
  color: var(--checkout-text);
}

/* === LAYOUT PRINCIPAL === */
.checkout-layout {
  max-width: 1180px;
  margin: 0 auto;
  padding: var(--space-6);
  display: grid;
  grid-template-columns: minmax(0, 60%) minmax(0, 1fr);
  gap: var(--space-5);
  align-items: start;
}

.checkout-title {
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

/* === COLUMNA IZQUIERDA: FORMULARIO === */
.checkout-form-card {
  background: var(--checkout-card-bg);
  border: 1px solid var(--checkout-border-subtle);
  border-radius: var(--checkout-radius-card);
  padding: var(--space-5);
  box-shadow: var(--checkout-shadow-sm);
}

.checkout-field {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.checkout-field label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--checkout-text-secondary);
  margin-bottom: var(--space-2);
}

.req-asterisk {
  color: var(--checkout-error);
  font-weight: 600;
}

.checkout-field input,
.checkout-field select,
.checkout-field textarea {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-3);
  background: var(--checkout-surface-subtle);
  border: 1px solid var(--checkout-border);
  border-radius: var(--checkout-radius-sm);
  font-family: inherit;
  font-size: 15px;
  color: var(--checkout-text);
  transition: border-color var(--checkout-transition), background var(--checkout-transition), box-shadow var(--checkout-transition);
}

.checkout-field textarea {
  height: auto;
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
  resize: none;
  line-height: 1.5;
}

.checkout-field input::placeholder,
.checkout-field textarea::placeholder {
  color: var(--checkout-text-tertiary);
}

.checkout-field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236B7684' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: var(--space-6);
}

.checkout-field input:focus,
.checkout-field select:focus,
.checkout-field textarea:focus {
  outline: none;
  background: var(--checkout-card-bg);
  border-color: var(--checkout-mint-dark);
  box-shadow: 0 0 0 3px rgba(127, 191, 171, 0.15);
}

.checkout-field.is-invalid input,
.checkout-field.is-invalid select,
.checkout-field.is-invalid textarea {
  border-color: var(--checkout-error);
}

.checkout-field__error {
  display: none;
  margin-top: var(--space-1);
  font-size: 12px;
  color: var(--checkout-error);
}

.checkout-field.is-invalid .checkout-field__error {
  display: block;
}

.checkout-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.checkout-field-row--telefono {
  grid-template-columns: 110px 1fr;
}

/* === CASILLAS DE VERIFICACIÓN === */
.checkout-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: var(--space-3) 0;
  font-size: 14px;
  color: var(--checkout-text-secondary);
  cursor: pointer;
}

.checkout-checkbox input {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--checkout-mint-dark);
  cursor: pointer;
}

/* Aceptación de políticas: texto largo con enlaces, se alinea arriba en
   vez de centrarse verticalmente contra el checkbox. */
#campo-acepto-politicas .checkout-checkbox {
  align-items: flex-start;
  line-height: 1.5;
}

#campo-acepto-politicas .checkout-checkbox input {
  margin-top: 3px;
}

#campo-acepto-politicas .checkout-checkbox a {
  color: var(--checkout-mint-dark);
  text-decoration: underline;
}

#campo-acepto-politicas.is-invalid .checkout-checkbox {
  color: var(--checkout-error, #e11d48);
}

/* === SECCIONES DEL FORMULARIO === */
.checkout-form-section {
  margin-bottom: var(--space-5);
}

.checkout-form-section:last-child {
  margin-bottom: 0;
}

.checkout-form-section__titulo {
  font-size: 18px;
  font-weight: 600;
  color: var(--checkout-text);
  margin-bottom: var(--space-3);
  letter-spacing: -0.01em;
}

.checkout-form-section__opcional {
  font-size: 13px;
  font-weight: 400;
  color: var(--checkout-text-tertiary);
}

.checkout-form-divider {
  height: 1px;
  background: var(--checkout-divider);
  margin: var(--space-5) 0;
}

.checkout-form-section > *:not(:first-child) {
  margin-top: var(--space-3);
}

.checkout-bloque-pais > *:not(:first-child) {
  margin-top: var(--space-3);
}

/* === TRANSICIÓN DE BLOQUE DE PAÍS (COLOMBIA / USA) === */
.checkout-bloque-pais {
  overflow: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.checkout-bloque-pais[hidden] {
  display: none;
}

.checkout-bloque-pais--oculto {
  opacity: 0;
  transform: translateY(-6px);
}

/* === COLUMNA DERECHA: RESUMEN === */
.checkout-summary {
  background: var(--checkout-card-bg);
  border: 1px solid var(--checkout-border-subtle);
  border-radius: var(--checkout-radius-card);
  padding: var(--space-4);
  box-shadow: var(--checkout-shadow-sm);
  position: sticky;
  top: var(--space-4);
}

.checkout-summary__titulo {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--space-3);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.checkout-summary__divider {
  height: 1px;
  background: var(--checkout-divider);
  margin: var(--space-3) 0;
}

#lista-productos {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-height: 320px;
  overflow-y: auto;
}

.checkout-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.checkout-item__imagen-wrap {
  position: relative;
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  border-radius: var(--checkout-radius-sm);
  background: var(--checkout-surface-subtle);
  border: 1px solid var(--checkout-border-subtle);
  overflow: hidden;
}

.checkout-item__imagen {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.checkout-item__cantidad-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  display: grid;
  place-items: center;
  background: var(--checkout-text);
  color: #FFFFFF;
  font-size: 10px;
  font-weight: 700;
  border-radius: 999px;
  line-height: 1;
}

.checkout-item__info {
  flex: 1;
  min-width: 0;
}

.checkout-item__nombre {
  font-size: 16px;
  font-weight: 500;
  color: var(--checkout-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.checkout-item__precio {
  margin-top: 2px;
  font-size: 12px;
  color: var(--checkout-text-secondary);
}

.checkout-item__subtotal {
  flex-shrink: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--checkout-text);
}

.checkout-summary__fila {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  font-weight: 400;
  color: var(--checkout-text-secondary);
}

.checkout-summary__fila span:last-child {
  color: var(--checkout-text);
  font-weight: 500;
}

.checkout-summary__fila + .checkout-summary__fila {
  margin-top: var(--space-2);
}

.checkout-summary__fila--envio span:last-child {
  color: var(--checkout-text-tertiary);
  font-style: italic;
  font-weight: 400;
}

.checkout-summary__fila--total {
  align-items: center;
}

.checkout-summary__fila--total span:first-child {
  font-size: 16px;
  font-weight: 600;
  color: var(--checkout-text);
}

.checkout-summary__fila--total .checkout-summary__total-valor {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--checkout-text);
}

/* Botón de pago (placeholder + montaje dinámico de Bold) */
#contenedor-boton-bold {
  margin-top: var(--space-4);
  display: flex;
  justify-content: center;
}

/* El botón real lo inyecta el script externo de Bold: forzamos el centrado
   de su contenido desde afuera, ya que no controlamos su marcado interno. */
#contenedor-boton-bold > * {
  width: 100%;
}

#contenedor-boton-bold * {
  justify-content: center !important;
  text-align: center !important;
}

.checkout-page .btn-pagar {
  width: 100%;
  height: 56px;
  background: var(--checkout-mint-dark);
  color: var(--checkout-text);
  border-radius: var(--checkout-radius-pill);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.01em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  box-shadow: 0 4px 14px rgba(127, 191, 171, 0.35);
  transition: background var(--checkout-transition-slow), color var(--checkout-transition-slow),
    transform var(--checkout-transition-slow), box-shadow var(--checkout-transition-slow), filter var(--checkout-transition-slow);
}

.checkout-page .btn-pagar:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(127, 191, 171, 0.45);
  filter: brightness(0.96);
}

.checkout-page .btn-pagar:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
}

.checkout-page .btn-pagar:disabled {
  background: var(--checkout-border);
  color: var(--checkout-text-tertiary);
  cursor: not-allowed;
}

.checkout-summary__microcopy {
  margin-top: var(--space-2);
  text-align: center;
  font-size: 12px;
  color: var(--checkout-text-tertiary);
}

.checkout-summary__microcopy--ssl {
  margin-top: var(--space-1);
}

.checkout-trust {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--checkout-divider);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.checkout-trust__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 12px;
  color: var(--checkout-text-tertiary);
}

.checkout-trust__item svg {
  flex-shrink: 0;
  color: var(--checkout-text-tertiary);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .checkout-layout {
    grid-template-columns: minmax(0, 55%) minmax(0, 1fr);
  }
}

@media (max-width: 768px) {
  .checkout-breadcrumb__inner {
    padding: var(--space-3) var(--space-4);
  }

  .checkout-layout {
    grid-template-columns: 1fr;
    padding: var(--space-4);
    gap: var(--space-4);
  }

  .checkout-title {
    font-size: 24px;
  }

  .checkout-summary {
    position: static;
  }

  .checkout-form-card {
    padding: var(--space-4);
  }

  .checkout-field-row {
    grid-template-columns: 1fr;
  }
}