/* ==========================================================================
   Overlay y Drawer del Carrito
   ========================================================================== */
.cart-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(2px);
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.cart-overlay.open {
  opacity: 1;
  visibility: visible;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 420px;
  background-color: var(--surface-color);
  box-shadow: var(--shadow-lg);
  z-index: 250;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-normal) cubic-bezier(0.16, 1, 0.3, 1);
}

.cart-drawer.open {
  transform: translateX(0);
}

/* Encabezado del Carrito */
.cart-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cart-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
}

.close-btn {
  background: none;
  border: none;
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.close-btn:hover {
  color: var(--text-main);
}

/* Lista de Artículos del Carrito */
.cart-items {
  flex-grow: 1;
  overflow-y: auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.cart-item {
  display: flex;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
  align-items: center;
}

.cart-item-img {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius);
  background-color: var(--bg-color);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.cart-item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item-details {
  flex-grow: 1;
}

.cart-item-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text-main);
}

.cart-item-price {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Control de Cantidad (+ / -) */
.cart-item-quantity {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.qty-btn {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  background-color: var(--surface-color);
  border-radius: var(--border-radius-sm);
  font-weight: 700;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.qty-btn:hover {
  background-color: var(--secondary-color);
}

.qty-display {
  font-size: 0.9rem;
  font-weight: 600;
  min-width: 20px;
  text-align: center;
}

.remove-item-btn {
  background: none;
  border: none;
  color: var(--danger-color);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0.25rem;
  border-radius: var(--border-radius-sm);
  transition: opacity var(--transition-fast);
}

.remove-item-btn:hover {
  opacity: 0.75;
}

/* Estado Vacío del Carrito */
.empty-cart-message {
  text-align: center;
  margin-top: 4rem;
  color: var(--text-muted);
}

.empty-cart-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

/* Pie del Carrito */
.cart-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background-color: var(--surface-color);
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  font-size: 1.1rem;
  font-weight: 700;
}

.cart-total-price {
  font-size: 1.35rem;
  color: var(--primary-color);
}

.cart-actions {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 0.75rem;
}