/**
 * Cart Component Styles
 * Cart drawer, cart items, cart summary, and floating cart button
 *
 * Redesigned with premium dark mode treatment:
 * - Frosted glass header/footer with backdrop blur
 * - Card-based item layout (CSS Grid, 2-row)
 * - Glow accents on primary actions
 * - Refined quantity controls and remove button
 * - Atmospheric empty state
 */

/* ============================================================================
   CART DRAWER
   ============================================================================ */

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 400px;
  background: var(--mm-surface);
  box-shadow: var(--mm-shadow-xl);
  display: flex;
  flex-direction: column;
  animation: slideInRight var(--mm-dur-medium2) var(--mm-ease-emphasized-decelerate);
  z-index: var(--z-modal);
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}

.cart-drawer.closing {
  animation: slideOutRight var(--mm-dur-medium1) var(--mm-ease-standard-accelerate) forwards;
}

@keyframes slideOutRight {
  from { transform: translateX(0); }
  to   { transform: translateX(100%); }
}

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

.cart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--mm-sp-6);
  border-bottom: 1px solid var(--mm-border);
  flex-shrink: 0;
}

.cart-title {
  font-family: var(--mm-ff-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
  color: var(--mm-text);
}

/* ============================================================================
   CART BODY (Scrollable)
   ============================================================================ */

.cart-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--mm-sp-4);
  overscroll-behavior: contain;
}

/* Smooth scroll */
.cart-body::-webkit-scrollbar {
  width: 4px;
}

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

.cart-body::-webkit-scrollbar-thumb {
  background: var(--mm-border);
  border-radius: 4px;
}

/* ============================================================================
   EMPTY CART STATE
   ============================================================================ */

.cart-empty {
  text-align: center;
  padding: var(--mm-sp-12) var(--mm-sp-6);
  color: var(--mm-text-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--mm-sp-4);
}

.cart-empty-illustration {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto var(--mm-sp-2);
  opacity: 0.6;
}

/* Shopping cart body */
.cart-empty-illustration::before {
  content: '';
  position: absolute;
  bottom: 20px;
  left: 20px;
  width: 80px;
  height: 60px;
  background: var(--mm-border);
  border-radius: var(--mm-radius-md);
  border: 3px solid var(--mm-text-tertiary);
}

/* Cart handle */
.cart-empty-illustration::after {
  content: '';
  position: absolute;
  bottom: 60px;
  left: 30px;
  width: 60px;
  height: 30px;
  border: 3px solid var(--mm-text-tertiary);
  border-bottom: none;
  border-radius: 30px 30px 0 0;
}

/* Cart wheels */
.cart-wheel-left,
.cart-wheel-right {
  position: absolute;
  bottom: 5px;
  width: 16px;
  height: 16px;
  background: var(--mm-text-tertiary);
  border-radius: 50%;
  border: 2px solid var(--mm-surface);
}

.cart-wheel-left {
  left: 30px;
}

.cart-wheel-right {
  right: 30px;
}

/* Empty indicator (dashed circle) */
.cart-empty-indicator {
  position: absolute;
  top: 5px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 40px;
  border: 2px dashed var(--mm-text-tertiary);
  border-radius: 50%;
  opacity: 0.5;
  animation: cart-pulse 2s var(--mm-ease-standard) infinite;
}

@keyframes cart-pulse {
  0%, 100% { opacity: 0.3; transform: translateX(-50%) scale(1); }
  50%      { opacity: 0.6; transform: translateX(-50%) scale(1.1); }
}

.cart-empty-text {
  font-size: var(--mm-fs-lg);
  font-weight: 600;
  color: var(--mm-text);
  margin: 0;
}

.cart-empty-hint {
  font-size: var(--mm-fs-sm);
  color: var(--mm-text-secondary);
  max-width: 220px;
  line-height: 1.5;
}

/* ============================================================================
   CART ITEMS CONTAINER
   ============================================================================ */

.cart-items {
  display: flex;
  flex-direction: column;
  gap: var(--mm-sp-2);
}

/* ============================================================================
   INDIVIDUAL CART ITEM — Card with grid layout
   Row 1: [info .................. ]
   Row 2: [controls]    [line total]
   ============================================================================ */

.cart-item {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 8px var(--mm-sp-4);
  padding: var(--mm-sp-4);
  background: var(--mm-bg);
  border: 1px solid var(--mm-border);
  border-radius: var(--mm-radius-lg);
  transition:
    border-color var(--mm-dur-short3) var(--mm-ease-standard),
    box-shadow var(--mm-dur-short3) var(--mm-ease-standard),
    transform var(--mm-dur-short3) var(--mm-ease-standard);
  /* Staggered entry animation */
  animation: mm-mot-stagger-in var(--mm-dur-medium2) var(--mm-ease-emphasized-decelerate) backwards;
  animation-delay: calc(var(--i, 0) * 60ms);
}

.cart-item:hover {
  border-color: rgb(var(--mm-primary-rgb) / 0.25);
}

/* -- Item info: spans full width (row 1) -- */

.cart-item-info {
  grid-column: 1 / -1;
  min-width: 0; /* prevent text overflow */
  padding-bottom: 6px;
  border-bottom: 1px solid var(--mm-border);
}

.cart-item-name {
  font-size: var(--mm-fs-base);
  font-weight: 600;
  color: var(--mm-text);
  margin: 0;
  line-height: 1.3;
}

.cart-item-modifiers {
  font-size: 0.8rem;
  color: var(--mm-text-secondary);
  margin-top: 4px;
  line-height: 1.4;
}

.cart-item-modifiers div {
  margin-top: 2px;
}

.cart-item-price {
  font-size: var(--mm-fs-sm);
  color: var(--mm-text-secondary);
  margin: 4px 0 0 0;
}

/* -- Quantity controls (row 2, left) — uses .product-cart-stepper from products.css -- */

.cart-item-controls {
  grid-column: 1;
  display: flex;
  align-items: center;
  gap: var(--mm-sp-2);
}

.cart-remove-btn {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: var(--mm-radius-full);
  background: transparent;
  color: var(--mm-text-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition:
    background-color var(--mm-dur-short3) var(--mm-ease-standard),
    color var(--mm-dur-short3) var(--mm-ease-standard);
  padding: 0;
  margin-inline-start: 4px;
}

.cart-remove-btn .material-icons {
  font-size: 18px;
}

.cart-remove-btn:hover {
  background: rgb(var(--mm-error-rgb) / 0.1);
  color: var(--mm-error-40);
}

.cart-remove-btn:active {
  transform: scale(0.92);
}

/* -- Line total (row 2, right) -- */

.cart-item-total {
  grid-column: 2;
  align-self: center;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--mm-text);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

/* ============================================================================
   CART FOOTER
   ============================================================================ */

.cart-footer {
  padding: var(--mm-sp-6);
  border-top: 1px solid var(--mm-border);
  background: var(--mm-surface);
  flex-shrink: 0;
}

/* Table number display */
.cart-table-number {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--mm-sp-4);
  padding: var(--mm-sp-4);
  background: var(--mm-bg);
  border: 1px solid var(--mm-border);
  border-radius: var(--mm-radius-md);
  margin-bottom: var(--mm-sp-4);
}

.cart-table-number-info {
  display: flex;
  align-items: center;
  gap: var(--mm-sp-4);
  color: var(--mm-text-secondary);
}

.cart-table-number-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cart-table-number-label {
  font-size: var(--mm-fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--mm-text-secondary);
}

.cart-table-number-value {
  font-size: var(--mm-fs-lg);
  font-weight: 600;
  color: var(--mm-text);
}

/* Total row */
.cart-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--mm-fs-xl);
  margin-bottom: var(--mm-sp-4);
}

.cart-total span {
  color: var(--mm-text-secondary);
  font-weight: 500;
}

#cart-total-amount {
  font-weight: 800;
  color: var(--mm-brand-functional);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

/* TABLE mode action buttons */
.c-cart-table-actions {
  display: flex;
  flex-direction: column;
  gap: var(--mm-sp-2);
}

.c-cart-table-actions .btn {
  width: 100%;
}

/* ============================================================================
   FLOATING CART (Mobile)
   ============================================================================ */

.floating-cart {
  position: fixed;
  bottom: var(--mm-sp-6);
  right: var(--mm-sp-6);
  width: 56px;
  height: 56px;
  border-radius: var(--mm-radius-full);
  background: var(--mm-brand-functional);
  color: var(--mm-on-primary);
  box-shadow: var(--mm-shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-fixed);
  transition:
    transform var(--mm-dur-short4) var(--mm-ease-emphasized-decelerate),
    box-shadow var(--mm-dur-short4) var(--mm-ease-standard);
  border: none;
  cursor: pointer;
}

.floating-cart:hover {
  transform: scale(1.1);
  box-shadow: var(--mm-shadow-xl);
}

.floating-cart:active {
  transform: scale(1.02);
}

.floating-cart .material-icons {
  font-size: 26px;
}

.floating-cart .cart-badge {
  top: -4px;
  right: -4px;
}

.cart-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: 10px;
  background: var(--mm-error-40);
  color: white;
  font-size: var(--mm-fs-xs);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

@media (min-width: 768px) {
  .floating-cart {
    display: none;
  }
}

/* ============================================================================
   RTL SUPPORT
   ============================================================================ */

[dir="rtl"] .cart-drawer {
  right: auto;
  left: 0;
  animation: slideInLeft var(--mm-dur-medium2) var(--mm-ease-emphasized-decelerate);
}

@keyframes slideInLeft {
  from { transform: translateX(-100%); }
  to   { transform: translateX(0); }
}

[dir="rtl"] .cart-drawer.closing {
  animation: slideOutLeft var(--mm-dur-medium1) var(--mm-ease-standard-accelerate) forwards;
}

@keyframes slideOutLeft {
  from { transform: translateX(0); }
  to   { transform: translateX(-100%); }
}

[dir="rtl"] .floating-cart {
  right: auto;
  left: var(--mm-sp-6);
}

[dir="rtl"] .floating-cart .cart-badge {
  right: auto;
  left: -4px;
}

[dir="rtl"] .cart-remove-btn {
  margin-inline-start: 4px;
  margin-inline-end: 0;
}

/* ============================================================================
   DARK THEME — Premium treatments (DS tokens auto-switch for most colors)
   ============================================================================ */

.dark-theme .cart-drawer {
  border-inline-start: 1px solid rgb(var(--mm-on-dark-rgb) / 0.04);
}

/* Frosted glass header */
.dark-theme .cart-header {
  background: rgb(var(--mm-shadow-rgb) / 0.85);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom-color: rgb(var(--mm-on-dark-rgb) / 0.06);
}

/* Custom scrollbar for dark */
.dark-theme .cart-body::-webkit-scrollbar-thumb {
  background: rgb(var(--mm-on-dark-rgb) / 0.1);
}

.dark-theme .cart-body::-webkit-scrollbar-thumb:hover {
  background: rgb(var(--mm-on-dark-rgb) / 0.18);
}

/* Empty state: dimmer, atmospheric */
.dark-theme .cart-empty-illustration {
  opacity: 0.35;
}

.dark-theme .cart-empty-illustration::before {
  background: rgb(var(--mm-on-dark-rgb) / 0.06);
  border-color: rgb(var(--mm-on-dark-rgb) / 0.12);
}

.dark-theme .cart-empty-illustration::after {
  border-color: rgb(var(--mm-on-dark-rgb) / 0.12);
}

.dark-theme .cart-wheel-left,
.dark-theme .cart-wheel-right {
  background: rgb(var(--mm-on-dark-rgb) / 0.12);
  border-color: var(--mm-surface);
}

.dark-theme .cart-empty-indicator {
  border-color: rgb(var(--mm-on-dark-rgb) / 0.1);
}

/* Cart item cards: elevated dark surfaces */
.dark-theme .cart-item {
  background: var(--mm-surface-container);
  border-color: rgb(var(--mm-on-dark-rgb) / 0.05);
  box-shadow: 0 1px 3px rgb(var(--mm-shadow-rgb) / 0.3);
}

/* Remove button */
.dark-theme .cart-remove-btn {
  color: rgb(var(--mm-on-dark-rgb) / 0.2);
}

.dark-theme .cart-remove-btn:hover {
  background: rgb(var(--mm-error-rgb) / 0.12);
  color: var(--mm-error-40);
}

/* Frosted glass footer */
.dark-theme .cart-footer {
  background: rgb(var(--mm-shadow-rgb) / 0.88);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-top-color: rgb(var(--mm-on-dark-rgb) / 0.06);
}

/* Total amount glow */
.dark-theme #cart-total-amount {
  text-shadow: 0 0 20px rgb(var(--mm-primary-rgb) / 0.3);
}

/* Table number chip */
.dark-theme .cart-table-number {
  background: rgb(var(--mm-on-dark-rgb) / 0.03);
  border-color: rgb(var(--mm-on-dark-rgb) / 0.06);
}

/* CTA button glow in dark mode */
.dark-theme .cart-footer .button-primary,
.dark-theme .cart-footer .btn-primary {
  box-shadow: 0 2px 12px rgb(var(--mm-primary-rgb) / 0.3);
}

/* Floating cart glow ring */
.dark-theme .floating-cart {
  box-shadow: var(--mm-shadow-lg), 0 0 16px rgb(var(--mm-primary-rgb) / 0.25);
}

/* Badge shadow */
.dark-theme .cart-badge {
  box-shadow: 0 2px 8px rgb(var(--mm-shadow-rgb) / 0.5);
}

/* ============================================================================
   FORCED COLORS (Windows High Contrast Mode)
   ============================================================================ */

@media (forced-colors: active) {
  .cart-drawer {
    border-inline-start: 2px solid ButtonText;
  }

  .cart-item {
    border: 1px solid ButtonText;
  }

  .cart-remove-btn {
    border: 1px solid ButtonText;
    background: ButtonFace;
    color: ButtonText;
  }

  .floating-cart {
    border: 2px solid ButtonText;
    background: ButtonFace;
    color: ButtonText;
  }

  .cart-badge {
    border: 1px solid ButtonText;
    background: Highlight;
    color: HighlightText;
  }
}

/* ============================================================================
   REDUCED MOTION
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
  .cart-drawer,
  .cart-drawer.closing {
    animation: none;
  }

  .cart-item {
    animation: none;
    transition: none;
  }

  .cart-remove-btn,
  .floating-cart {
    transition: none;
  }

  .cart-empty-indicator {
    animation: none;
  }
}