/**
 * =========================================================
 * CandyCloud — Cart Slider Tray
 * Performance First Approach
 * 
 * Sliding cart tray from right edge (desktop & mobile)
 * Fully polished design with quantity controls and remove buttons
 * =========================================================
 */

/* =========================================================
   CART SLIDER OVERLAY & CONTAINER
========================================================= */

.cc-cart-slider-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  z-index: 99998;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.3s ease;
  pointer-events: none;
}

.cc-cart-slider-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.cc-cart-slider {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 420px;
  height: 100vh;
  height: 100dvh;
  background: var(--cc-gunmetal);
  box-shadow: -8px 0 32px rgba(0, 0, 0, 0.4);
  z-index: 99999;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  will-change: transform;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
}

.cc-cart-slider.active {
  transform: translateX(0);
}

/* =========================================================
   CART SLIDER HEADER
========================================================= */

.cc-cart-slider__header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--cc-border-strong);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--cc-gunmetal-dark);
  flex-shrink: 0;
  position: relative;
}

.cc-cart-slider__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--cc-text-heading);
  margin: 0;
  letter-spacing: -0.01em;
}

.cc-cart-slider__close {
  background: transparent;
  border: 1px solid var(--cc-border-strong);
  color: var(--cc-text-heading);
  width: 36px;
  height: 36px;
  border-radius: var(--cc-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
  padding: 0;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  position: relative;
  user-select: none;
}

.cc-cart-slider__close:hover {
  border-color: var(--cc-primary);
  color: var(--cc-primary);
  background: rgba(255, 47, 146, 0.1);
}

.cc-cart-slider__close:active {
  transform: scale(0.95);
  background: rgba(255, 47, 146, 0.2);
}

.cc-cart-slider__close:focus {
  outline: 2px solid var(--cc-primary);
  outline-offset: 2px;
}

.cc-cart-slider__close svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2.5;
  pointer-events: none;
}

/* =========================================================
   GLOBAL TOAST (failsafe for stuck add-to-cart buttons)
========================================================= */

.cc-cart-slider-toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  z-index: 100000;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
    transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  will-change: opacity, transform;
}

.cc-cart-slider-toast.cc-toast-visible {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.cc-cart-slider-toast .cc-toast-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 18px;
  background: linear-gradient(135deg, var(--cc-gunmetal) 0%, var(--cc-gunmetal-light) 100%);
  border: 2px solid var(--cc-primary);
  border-radius: var(--cc-radius);
  box-shadow:
    0 18px 50px rgba(0, 0, 0, 0.55),
    0 10px 30px var(--cc-primary-glow);
  color: var(--cc-text-heading);
  font-weight: 600;
  font-size: 15px;
  max-width: min(92vw, 520px);
  text-align: center;
}

/* =========================================================
   CART SLIDER CONTENT (Scrollable)
========================================================= */

.cc-cart-slider__content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 20px;
  -webkit-overflow-scrolling: touch;
}

/* Custom scrollbar */
.cc-cart-slider__content::-webkit-scrollbar {
  width: 5px;
}

.cc-cart-slider__content::-webkit-scrollbar-track {
  background: transparent;
}

.cc-cart-slider__content::-webkit-scrollbar-thumb {
  background: var(--cc-primary);
  border-radius: 3px;
  opacity: 0.6;
}

.cc-cart-slider__content::-webkit-scrollbar-thumb:hover {
  opacity: 1;
}

/* =========================================================
   CART ITEMS IN SLIDER
========================================================= */

.cc-cart-slider__items {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cc-cart-slider__item {
  display: flex;
  gap: 14px;
  padding: 14px;
  background: var(--cc-gunmetal-dark);
  border-radius: var(--cc-radius-sm);
  border: 1px solid var(--cc-border-strong);
  transition: border-color 0.2s ease, background-color 0.2s ease;
  position: relative;
  transition: opacity 0.18s ease, transform 0.18s ease, max-height 0.22s ease, margin 0.22s ease, padding 0.22s ease;
  max-height: 220px;
  will-change: opacity, transform, max-height;
}

.cc-cart-slider__item.cc-item-removing {
  opacity: 0;
  transform: translateX(8px);
  max-height: 0;
  margin-top: 0;
  margin-bottom: 0;
  padding-top: 0;
  padding-bottom: 0;
  overflow: hidden;
}

.cc-cart-slider__item:hover {
  border-color: var(--cc-primary);
  background: var(--cc-gunmetal-light);
}

.cc-cart-slider__item-image {
  width: 75px;
  height: 75px;
  min-width: 75px;
  border-radius: var(--cc-radius-sm);
  overflow: hidden;
  background: var(--cc-gunmetal);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--cc-border-strong);
  flex-shrink: 0;
}

.cc-cart-slider__item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.cc-cart-slider__item-details {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.cc-cart-slider__item-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--cc-text-heading);
  line-height: 1.4;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cc-cart-slider__item-name a {
  color: var(--cc-text-heading);
  text-decoration: none;
  transition: color 0.2s ease;
}

.cc-cart-slider__item-name a:hover {
  color: var(--cc-primary);
}

.cc-cart-slider__item-price {
  font-size: 16px;
  font-weight: 700;
  color: var(--cc-primary);
  margin: 0;
}

/* =========================================================
   QUANTITY CONTROLS
========================================================= */

.cc-cart-slider__item-quantity {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.cc-cart-slider__quantity-controls {
  display: flex;
  align-items: center;
  border: 1px solid var(--cc-border-strong);
  border-radius: var(--cc-radius-sm);
  background: var(--cc-gunmetal);
  overflow: hidden;
}

.cc-cart-slider__quantity-btn {
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  color: var(--cc-text-heading);
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
}

.cc-cart-slider__quantity-btn:hover {
  background: var(--cc-primary);
  color: var(--cc-text-button);
}

.cc-cart-slider__quantity-btn:active {
  transform: scale(0.95);
}

.cc-cart-slider__quantity-btn--minus {
  border-right: 1px solid var(--cc-border-strong);
}

.cc-cart-slider__quantity-btn--plus {
  border-left: 1px solid var(--cc-border-strong);
}

.cc-cart-slider__item-quantity .qty {
  width: 50px;
  height: 32px;
  padding: 0 8px;
  background: transparent;
  border: none;
  color: var(--cc-text-heading);
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  -moz-appearance: textfield;
  appearance: textfield;
  outline: none;
}

.cc-cart-slider__item-quantity .qty::-webkit-outer-spin-button,
.cc-cart-slider__item-quantity .qty::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.cc-cart-slider__item-quantity .qty:focus {
  background: rgba(255, 47, 146, 0.1);
}

/* =========================================================
   REMOVE BUTTON
========================================================= */

.cc-cart-slider__item-remove {
  position: absolute;
  top: 10px;
  right: 10px;
  background: transparent;
  border: 1px solid rgba(255, 79, 79, 0.3);
  color: #FF4F4F;
  font-size: 18px;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: var(--cc-radius-xs);
  transition: all 0.15s ease;
  padding: 0;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  line-height: 1;
  font-weight: 400;
  user-select: none;
}

.cc-cart-slider__item-remove:hover {
  background: rgba(255, 79, 79, 0.15);
  border-color: #FF4F4F;
}

.cc-cart-slider__item-remove:active {
  transform: scale(0.9);
  background: rgba(255, 79, 79, 0.25);
}

/* =========================================================
   CART SLIDER FOOTER (Totals & Buttons)
========================================================= */

.cc-cart-slider__footer {
  padding: 18px 20px;
  border-top: 1px solid var(--cc-border-strong);
  background: var(--cc-gunmetal-dark);
  flex-shrink: 0;
}

.cc-cart-slider__totals {
  margin-bottom: 20px;
}

.cc-cart-slider__total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  font-size: 15px;
  color: var(--cc-text-light);
}

.cc-cart-slider__total-row--final {
  font-size: 20px;
  font-weight: 800;
  color: var(--cc-text-heading);
  padding-top: 16px;
  border-top: 1px solid var(--cc-border-strong);
  margin-top: 8px;
}

.cc-cart-slider__total-label {
  font-weight: 600;
}

.cc-cart-slider__total-value {
  font-weight: 700;
  color: var(--cc-primary);
}

.cc-cart-slider__buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cc-cart-slider__button {
  width: 100%;
  padding: 12px 18px;
  border-radius: var(--cc-radius-sm);
  font-weight: 600;
  font-size: 14px;
  text-align: center;
  text-decoration: none;
  transition: all 0.15s ease;
  border: 1px solid;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.cc-cart-slider__button--primary {
  background: var(--cc-primary);
  color: var(--cc-text-button);
  border-color: var(--cc-primary);
}

.cc-cart-slider__button--primary:hover {
  background: var(--cc-primary-dark);
  border-color: var(--cc-primary-dark);
}

.cc-cart-slider__button--primary:active {
  transform: scale(0.98);
}

.cc-cart-slider__button--secondary {
  background: transparent;
  color: var(--cc-text-heading);
  border-color: var(--cc-border-strong);
}

.cc-cart-slider__button--secondary:hover,
.cc-cart-slider__button--secondary:active {
  border-color: var(--cc-primary);
  color: var(--cc-primary);
  background: rgba(255, 47, 146, 0.05);
}

/* =========================================================
   EMPTY CART STATE IN SLIDER
========================================================= */

.cc-cart-slider__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  text-align: center;
  min-height: 300px;
}

.cc-cart-slider__empty-icon {
  font-size: 64px;
  margin-bottom: 20px;
  opacity: 0.5;
  color: var(--cc-primary);
}

.cc-cart-slider__empty-message {
  font-size: 18px;
  font-weight: 700;
  color: var(--cc-text-heading);
  margin-bottom: 12px;
}

.cc-cart-slider__empty-text {
  font-size: 14px;
  color: var(--cc-text-light);
  margin-bottom: 24px;
}

/* =========================================================
   LOADING STATE
========================================================= */

.cc-cart-slider__loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  min-height: 200px;
}

.cc-cart-slider__spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--cc-border-strong);
  border-top-color: var(--cc-primary);
  border-radius: 50%;
  animation: cc-spin 0.8s linear infinite;
}

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

/* =========================================================
   RESPONSIVE DESIGN
========================================================= */

@media (max-width: 768px) {
  .cc-cart-slider {
    max-width: 80vw !important;
    width: 80vw !important;
    z-index: 999999;
  }
  
  .cc-cart-slider-overlay {
    z-index: 999998;
  }

  .cc-cart-slider__header {
    padding: 16px 20px;
  }

  .cc-cart-slider__title {
    font-size: 20px;
  }

  .cc-cart-slider__content {
    padding: 16px 20px;
  }

  .cc-cart-slider__item {
    padding: 14px;
    gap: 12px;
  }

  .cc-cart-slider__item-image {
    width: 70px;
    height: 70px;
    min-width: 70px;
  }

  .cc-cart-slider__item-name {
    font-size: 14px;
  }

  .cc-cart-slider__item-price {
    font-size: 16px;
  }

  .cc-cart-slider__footer {
    padding: 16px 20px;
  }
}

/* Smooth update UX (prevents flicker) */
.cc-cart-slider__items {
  transition: opacity 0.18s ease;
}

.cc-cart-slider__items.cc-is-swapping {
  opacity: 0.6;
}

.cc-cart-slider__item--updating {
  opacity: 0.65;
  pointer-events: none;
}

.cc-cart-slider__item--updating::after {
  content: '';
  position: absolute;
  top: 10px;
  right: 10px;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.25);
  border-top-color: var(--cc-primary);
  border-radius: 50%;
  animation: cc-spin 0.8s linear infinite;
}

@media (max-width: 480px) {
  .cc-cart-slider {
    max-width: 95%;
    width: 95%;
  }

  .cc-cart-slider__content {
    padding: 12px 16px;
  }

  .cc-cart-slider__item {
    padding: 12px;
    gap: 10px;
  }

  .cc-cart-slider__item-image {
    width: 60px;
    height: 60px;
    min-width: 60px;
  }

  .cc-cart-slider__footer {
    padding: 12px 16px;
  }

  .cc-cart-slider__button {
    padding: 12px 16px;
    font-size: 14px;
  }
}

/* =========================================================
   BODY SCROLL LOCK (when slider is open)
========================================================= */

body.cc-cart-slider-open {
  overflow: hidden;
  position: fixed;
  width: 100%;
  height: 100%;
}

/* =========================================================
   ANIMATION ENHANCEMENTS
========================================================= */

.cc-cart-slider__item {
  animation: cartItemSlideIn 0.3s ease-out;
}

@keyframes cartItemSlideIn {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Stagger animation for multiple items */
.cc-cart-slider__item:nth-child(1) { animation-delay: 0.05s; }
.cc-cart-slider__item:nth-child(2) { animation-delay: 0.1s; }
.cc-cart-slider__item:nth-child(3) { animation-delay: 0.15s; }
.cc-cart-slider__item:nth-child(4) { animation-delay: 0.2s; }
.cc-cart-slider__item:nth-child(n+5) { animation-delay: 0.25s; }