:root {
  --cart-primary: #316d7e;
  --cart-primary-light: #4a8a9d;
  --cart-accent: #00b0c1;
  --cart-dark: #1f4a56;
  --cart-text: #1a3b4c;
  --cart-gray: #555;
  --cart-bg: #fafafa;
  --cart-white: #ffffff;
  --cart-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  --cart-transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --cart-drawer-width: 420px;
}

.cart-icon-btn {
  position: relative;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.2);
  color: white;
  cursor: pointer;
  transition: var(--cart-transition);
  backdrop-filter: blur(10px);
  text-decoration: none;
  flex-shrink: 0;
}

.cart-icon-btn:hover {
  transform: translateY(-3px) scale(1.05);
  background: rgba(255, 255, 255, 0.25);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.cart-icon-btn i {
  font-size: 18px;
}

.cart-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid white;
  opacity: 0;
  transform: scale(0);
  transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
  line-height: 1;
}

.cart-badge.visible {
  opacity: 1;
  transform: scale(1);
}

.cart-badge.bump {
  animation: badgeBump 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes badgeBump {
  0% { transform: scale(1); }
  50% { transform: scale(1.5); }
  100% { transform: scale(1); }
}

.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(3px);
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

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

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: var(--cart-drawer-width);
  max-width: 100vw;
  height: 100vh;
  background: var(--cart-white);
  z-index: 1101;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: -8px 0 40px rgba(0, 0, 0, 0.15);
}

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

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 1.8rem;
  background: linear-gradient(135deg, var(--cart-primary), var(--cart-primary-light));
  color: white;
  flex-shrink: 0;
}

.drawer-header h2 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.drawer-header h2 i {
  font-size: 1rem;
}

.drawer-close-btn {
  width: 34px;
  height: 34px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, transform 0.2s ease;
}

.drawer-close-btn:hover {
  background: rgba(255, 255, 255, 0.35);
  transform: rotate(90deg);
}

.drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 0;
  scrollbar-width: thin;
  scrollbar-color: var(--cart-primary-light) transparent;
}

.drawer-body::-webkit-scrollbar {
  width: 4px;
}

.drawer-body::-webkit-scrollbar-thumb {
  background: var(--cart-primary-light);
  border-radius: 2px;
}

.drawer-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 1rem;
  color: var(--cart-gray);
  text-align: center;
  padding: 2rem;
}

.drawer-empty i {
  font-size: 3.5rem;
  color: #ddd;
}

.drawer-empty p {
  font-size: 1rem;
  line-height: 1.6;
}

.drawer-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.8rem;
  border-bottom: 1px solid #f0f0f0;
  animation: slideInItem 0.3s ease-out;
}

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

.drawer-item-img {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: 10px;
  flex-shrink: 0;
  border: 2px solid #f0f0f0;
}

.drawer-item-info {
  flex: 1;
  min-width: 0;
}

.drawer-item-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--cart-text);
  margin-bottom: 0.3rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.drawer-item-price {
  font-size: 0.85rem;
  color: var(--cart-primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.drawer-item-total {
  font-size: 0.8rem;
  color: var(--cart-gray);
}

.drawer-qty-controls {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.4rem;
}

.drawer-qty-btn {
  width: 24px;
  height: 24px;
  background: #f0f4f5;
  border: 1px solid #d0d8da;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--cart-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
  line-height: 1;
}

.drawer-qty-btn:hover {
  background: var(--cart-primary);
  color: white;
  border-color: var(--cart-primary);
}

.drawer-qty-display {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--cart-text);
  min-width: 1.5rem;
  text-align: center;
}

.drawer-item-remove {
  background: none;
  border: none;
  color: #ccc;
  cursor: pointer;
  font-size: 1rem;
  padding: 0.3rem;
  border-radius: 6px;
  transition: color 0.2s ease, background 0.2s ease;
  flex-shrink: 0;
}

.drawer-item-remove:hover {
  color: #e74c3c;
  background: #fdf0f0;
}

.drawer-footer {
  padding: 1.5rem 1.8rem;
  border-top: 2px solid #f0f0f0;
  background: white;
  flex-shrink: 0;
}

.drawer-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.2rem;
}

.drawer-total-label {
  font-size: 0.95rem;
  color: var(--cart-gray);
  font-weight: 500;
}

.drawer-total-amount {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--cart-primary);
}

.drawer-view-cart-btn {
  width: 100%;
  padding: 1rem 1.5rem;
  background: linear-gradient(135deg, var(--cart-primary), var(--cart-accent));
  color: white;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  transition: var(--cart-transition);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.3px;
}

.drawer-view-cart-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transition: left 0.5s;
}

.drawer-view-cart-btn:hover::before {
  left: 100%;
}

.drawer-view-cart-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(49, 109, 126, 0.4);
}

.add-to-cart-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.2rem;
  background: linear-gradient(135deg, var(--cart-primary), var(--cart-accent));
  color: white;
  border: none;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--cart-transition);
  width: 100%;
  margin-top: 0.8rem;
  position: relative;
  overflow: hidden;
}

.add-to-cart-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transition: left 0.4s;
}

.add-to-cart-btn:hover::before {
  left: 100%;
}

.add-to-cart-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(49, 109, 126, 0.35);
}

.add-to-cart-btn.added {
  background: linear-gradient(135deg, #27ae60, #2ecc71);
}

.add-to-cart-btn i {
  font-size: 0.8rem;
}

.cart-toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: linear-gradient(135deg, var(--cart-primary), var(--cart-accent));
  color: white;
  padding: 0.9rem 1.8rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  z-index: 1200;
  opacity: 0;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.35s ease;
  white-space: nowrap;
  box-shadow: 0 6px 25px rgba(49, 109, 126, 0.4);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  pointer-events: none;
}

.cart-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 768px) {
  :root {
    --cart-drawer-width: 100vw;
  }

  .cart-drawer {
    border-radius: 20px 20px 0 0;
    top: auto;
    bottom: 0;
    height: 85vh;
    width: 100%;
    transform: translateY(100%);
  }

  .cart-drawer.active {
    transform: translateY(0);
  }

  .drawer-item {
    padding: 0.9rem 1.2rem;
  }

  .drawer-header {
    padding: 1.2rem 1.4rem;
  }

  .drawer-footer {
    padding: 1.2rem 1.4rem;
  }

  .cart-toast {
    width: calc(100% - 2rem);
    text-align: center;
    white-space: normal;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .cart-drawer {
    height: 90vh;
  }

  .drawer-item-img {
    width: 52px;
    height: 52px;
  }

  .drawer-item-name {
    font-size: 0.82rem;
  }
}