/* ========================================
   FILE: frontend/css/cart-drawer.css
   ======================================== */

#cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: calc(var(--z-drawer) - 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}
#cart-overlay.open {
  opacity: 1;
  pointer-events: all;
}

#cart-drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(420px, 100vw);
  background: var(--color-bg);
  z-index: var(--z-drawer);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-slow) cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-xl);
}
#cart-drawer.open {
  transform: translateX(0);
}

/* Header */
.cart-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}
.cart-drawer-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-black);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.cart-drawer-close {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-size: 20px;
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast);
}
.cart-drawer-close:hover {
  color: var(--color-text);
  background: var(--color-bg-light);
}

/* Body */
.cart-drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg) var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* Empty state */
.cart-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-3xl) 0;
  text-align: center;
}
.cart-empty-icon {
  font-size: 56px;
  opacity: 0.2;
}
.cart-empty-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
}
.cart-empty-sub {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* Cart Items */
.cart-item {
  display: flex;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}
.cart-item:last-child { border-bottom: none; }

.cart-item-image {
  width: 80px;
  height: 96px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-bg-light);
  flex-shrink: 0;
}
.cart-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item-content {
  flex: 1;
  min-width: 0;
}
.cart-item-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cart-item-variant {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.cart-item-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}
.cart-item-price {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
}

/* Quantity Controls */
.qty-control {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.qty-btn {
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-bg-light);
  color: var(--color-text);
  font-size: 16px;
  cursor: pointer;
  transition: background var(--transition-fast);
  border: none;
}
.qty-btn:hover { background: var(--color-border); }
.qty-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.qty-value {
  width: 32px;
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}
.cart-item-remove {
  color: var(--color-text-muted);
  font-size: 14px;
  cursor: pointer;
  padding: 4px;
  transition: color var(--transition-fast);
}
.cart-item-remove:hover { color: var(--color-error); }

/* Shipping Progress Bar */
.shipping-progress {
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  flex-shrink: 0;
}
.shipping-progress-text {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-sm);
  text-align: center;
}
.shipping-progress-text strong { color: var(--color-primary); }
.shipping-progress-bar-bg {
  height: 4px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.shipping-progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

/* Footer */
.cart-drawer-footer {
  padding: var(--space-lg) var(--space-xl);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
  background: var(--color-bg);
}
.cart-subtotal-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}
.cart-subtotal-row strong {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-black);
  color: var(--color-text);
}
.cart-footer-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.cart-view-link {
  text-align: center;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: var(--font-weight-medium);
  padding: var(--space-sm);
  transition: color var(--transition-fast);
}
.cart-view-link:hover { color: var(--color-primary); }