/* ==========================================
   CART DRAWER — slide-out panel
   ========================================== */

.csg-cart-drawer {
  position: fixed;
  inset: 0;
  z-index: 100;
  visibility: hidden;
  pointer-events: none;
  transition-property: visibility;
  transition-duration: 0s;
  transition-delay: 400ms;
  transition-timing-function: linear;
}

.csg-cart-drawer.is-open {
  visibility: visible;
  pointer-events: auto;
  transition-delay: 0s;
}

.csg-cart-drawer__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  transition: opacity var(--csg-transition-slow);
  cursor: pointer;
}

.csg-cart-drawer.is-open .csg-cart-drawer__overlay {
  opacity: 1;
}

.csg-cart-drawer__panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 400px;
  max-width: 100%;
  background-color: var(--csg-surface-container-lowest);
  box-shadow: var(--csg-shadow-xl);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--csg-transition-slow);
  will-change: transform;
}

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

/* Header */
.csg-cart-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--csg-outline-variant);
  background-color: var(--csg-background);
  flex-shrink: 0;
}

.csg-cart-drawer__title {
  font-family: var(--csg-font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--csg-on-surface);
  margin: 0;
  letter-spacing: var(--csg-text-display-ls);
}

.csg-cart-drawer__count {
  color: var(--csg-primary);
}

.csg-cart-drawer__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--csg-radius-full);
  color: var(--csg-on-surface-variant);
  transition: background-color var(--csg-transition), color var(--csg-transition);
}

.csg-cart-drawer__close:hover,
.csg-cart-drawer__close:focus-visible {
  background-color: var(--csg-surface-container);
  color: var(--csg-on-surface);
  outline: none;
}

/* Content */
.csg-cart-drawer__content {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

/* Items list */
.csg-cart-drawer__items {
  flex: 1;
  overflow-y: auto;
  padding: 0 1.5rem;
  -webkit-overflow-scrolling: touch;
}

.csg-cart-drawer__item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--csg-outline-variant);
  position: relative;
}

.csg-cart-drawer__item:last-child {
  border-bottom: none;
}

.csg-cart-drawer__item-image {
  display: block;
  width: 80px;
  height: 80px;
  border-radius: var(--csg-radius);
  overflow: hidden;
  background-color: var(--csg-surface-container);
  border: 1px solid var(--csg-outline-variant);
  position: relative;
}

.csg-cart-drawer__item-image::before {
  content: "×";
  position: absolute;
  top: -6px;
  right: -6px;
  width: 1.25rem;
  height: 1.25rem;
  background-color: var(--csg-outline-variant);
  color: var(--csg-surface-container-lowest);
  border-radius: var(--csg-radius-full);
  font-size: 0.875rem;
  line-height: 1.25rem;
  text-align: center;
  font-weight: 700;
  z-index: 1;
  display: none;
}

.csg-cart-drawer__item.is-removing .csg-cart-drawer__item-image::before {
  display: block;
  content: "";
  background: var(--csg-on-surface-variant);
  animation: csg-drawer-spin 0.6s linear infinite;
  border: 2px solid transparent;
  border-top-color: var(--csg-surface-container-lowest);
}

@keyframes csg-drawer-spin {
  to { transform: rotate(360deg); }
}

.csg-cart-drawer__item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.csg-cart-drawer__item-body {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.csg-cart-drawer__item-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--csg-on-surface);
  line-height: 1.4;
  margin: 0;
}

.csg-cart-drawer__item-name a {
  color: inherit;
}

.csg-cart-drawer__item-name a:hover {
  color: var(--csg-primary);
}

.csg-cart-drawer__item-price {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-size: 0.875rem;
}

.csg-cart-drawer__item-price-regular {
  color: var(--csg-on-surface-variant);
  text-decoration: line-through;
  font-size: 0.8125rem;
}

.csg-cart-drawer__item-price-final {
  color: var(--csg-primary);
  font-weight: 700;
}

.csg-cart-drawer__item-save {
  color: var(--csg-safe-green);
  font-size: 0.75rem;
  font-weight: 600;
}

.csg-cart-drawer__item-meta {
  font-size: 0.75rem;
  color: var(--csg-on-surface-variant);
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.csg-cart-drawer__item-meta dl,
.csg-cart-drawer__item-meta dt,
.csg-cart-drawer__item-meta dd {
  margin: 0;
  padding: 0;
  display: inline;
}

.csg-cart-drawer__item-meta dt {
  font-weight: 600;
  color: var(--csg-on-surface);
}

.csg-cart-drawer__item-meta dt::after {
  content: ": ";
}

.csg-cart-drawer__item-meta dd {
  margin-right: 0.5rem;
}

.csg-cart-drawer__item-meta dd::after {
  content: "";
}

.csg-cart-drawer__item-meta p {
  margin: 0;
}

.csg-cart-drawer__item-select {
  color: var(--csg-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 500;
}

.csg-cart-drawer__item-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

/* Qty controls */
.csg-cart-drawer__qty {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--csg-outline-variant);
  border-radius: var(--csg-radius);
  overflow: hidden;
  background-color: var(--csg-surface-container-lowest);
}

.csg-cart-drawer__qty-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  color: var(--csg-on-surface-variant);
  transition: background-color var(--csg-transition), color var(--csg-transition);
}

.csg-cart-drawer__qty-btn:hover:not(:disabled),
.csg-cart-drawer__qty-btn:focus-visible:not(:disabled) {
  background-color: var(--csg-surface-container);
  color: var(--csg-primary);
  outline: none;
}

.csg-cart-drawer__qty-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.csg-cart-drawer__qty-value {
  min-width: 1.75rem;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--csg-on-surface);
  padding: 0 0.25rem;
  user-select: none;
}

.csg-cart-drawer__item-remove {
  color: var(--csg-on-surface-variant);
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  padding: 0.25rem 0.5rem;
  transition: color var(--csg-transition);
}

.csg-cart-drawer__item-remove:hover,
.csg-cart-drawer__item-remove:focus-visible {
  color: var(--csg-error);
  outline: none;
}

/* Empty state */
.csg-cart-drawer__empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--csg-on-surface-variant);
}

.csg-cart-drawer__empty-icon {
  color: var(--csg-outline-variant);
  margin-bottom: 1rem;
}

.csg-cart-drawer__empty-title {
  font-family: var(--csg-font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--csg-on-surface);
  margin: 0 0 0.5rem;
}

.csg-cart-drawer__empty-text {
  font-size: 0.875rem;
  margin: 0;
}

/* Free shipping progress bar */
.csg-cart-drawer__shipping-bar {
  border-top: 1px solid var(--csg-outline-variant);
  padding: 0.875rem 1.5rem 1rem;
  flex-shrink: 0;
  background-color: var(--csg-surface-container-lowest);
  transition: background-color var(--csg-transition);
}

.csg-cart-drawer__shipping-message {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--csg-on-surface);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  line-height: 1.4;
}

.csg-cart-drawer__shipping-message strong {
  color: var(--csg-primary);
  font-weight: 700;
  padding: 0 0.125rem;
}

.csg-cart-drawer__shipping-emoji {
  font-size: 1rem;
  line-height: 1;
}

.csg-cart-drawer__shipping-track {
  height: 6px;
  background-color: var(--csg-outline-variant);
  border-radius: var(--csg-radius-full);
  overflow: hidden;
  position: relative;
}

.csg-cart-drawer__shipping-fill {
  height: 100%;
  width: 0;
  background-color: var(--csg-primary);
  border-radius: var(--csg-radius-full);
  transition: width 700ms cubic-bezier(0.4, 0, 0.2, 1), background-color 300ms ease;
  will-change: width;
}

/* Approaching threshold (>= 80%): soft pulse on the track */
.csg-cart-drawer__shipping-bar.is-approaching .csg-cart-drawer__shipping-track {
  animation: csg-shipping-pulse 1.5s ease-in-out infinite;
}

@keyframes csg-shipping-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(69, 97, 49, 0); }
  50%      { box-shadow: 0 0 0 4px rgba(69, 97, 49, 0.18); }
}

/* Reached threshold: green fill + soft bounce on the bar */
.csg-cart-drawer__shipping-bar.is-reached .csg-cart-drawer__shipping-fill {
  background-color: var(--csg-safe-green);
}

.csg-cart-drawer__shipping-bar.is-reached .csg-cart-drawer__shipping-message strong {
  color: var(--csg-safe-green);
}

.csg-cart-drawer__shipping-bar.is-reached {
  animation: csg-shipping-celebrate 600ms ease-out 1;
  transform-origin: center;
}

@keyframes csg-shipping-celebrate {
  0%   { transform: scale(1); }
  30%  { transform: scale(1.03); }
  100% { transform: scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  .csg-cart-drawer__shipping-fill {
    transition: none;
  }
  .csg-cart-drawer__shipping-bar.is-approaching .csg-cart-drawer__shipping-track,
  .csg-cart-drawer__shipping-bar.is-reached {
    animation: none;
  }
}

/* Totals */
.csg-cart-drawer__totals {
  border-top: 1px solid var(--csg-outline-variant);
  padding: 1rem 1.5rem;
  flex-shrink: 0;
  background-color: var(--csg-background);
}

.csg-cart-drawer__totals-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--csg-on-surface);
}

.csg-cart-drawer__totals-value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--csg-on-surface);
}

.csg-cart-drawer__totals-note {
  font-size: 0.75rem;
  color: var(--csg-on-surface-variant);
  margin: 0.25rem 0 0;
}

/* Actions */
.csg-cart-drawer__actions {
  padding: 1rem 1.5rem 1.5rem;
  border-top: 1px solid var(--csg-outline-variant);
  background-color: var(--csg-surface-container-lowest);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex-shrink: 0;
}

.csg-cart-drawer__checkout {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.875rem 1.5rem;
  background-color: var(--csg-primary);
  color: var(--csg-on-primary);
  border-radius: var(--csg-radius);
  font-family: var(--csg-font-body);
  font-size: 0.9375rem;
  font-weight: 700;
  text-decoration: none;
  transition: background-color var(--csg-transition), transform var(--csg-transition);
  letter-spacing: 0.01em;
}

.csg-cart-drawer__checkout:hover {
  background-color: #3a5328;
  color: var(--csg-on-primary);
  transform: translateY(-1px);
}

.csg-cart-drawer__checkout-total {
  margin-left: auto;
  padding-left: 0.75rem;
  border-left: 1px solid rgba(255, 255, 255, 0.25);
  font-weight: 700;
}

.csg-cart-drawer__continue {
  display: block;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--csg-on-surface-variant);
  padding: 0.5rem;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--csg-transition);
}

.csg-cart-drawer__continue:hover,
.csg-cart-drawer__continue:focus-visible {
  color: var(--csg-primary);
  outline: none;
}

/* Body scroll lock */
body.is-cart-open {
  overflow: hidden;
}

/* Defensive: prevent any latent horizontal overflow on the page from
 * expanding the drawer beyond the viewport on Chrome mobile. */
body {
  overflow-x: hidden;
}

/* Responsive — full width on tablet & mobile */
@media (max-width: 1023px) {
  .csg-cart-drawer__panel {
    width: 100vw;
    max-width: 100vw;
    contain: layout style;
  }
}

/* Small screen tweaks */
@media (max-width: 480px) {
  .csg-cart-drawer__header {
    padding: 0.875rem 1rem;
  }

  .csg-cart-drawer__items {
    padding: 0 1rem;
  }

  .csg-cart-drawer__shipping-bar,
  .csg-cart-drawer__totals,
  .csg-cart-drawer__actions {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}