/* Floating Action Button (FAB) Cart */
.fab-cart {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 64px;
  height: 64px;
  background-color: var(--amodei-orange);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
  cursor: pointer;
  z-index: 9997;
  transition: transform 0.2s, background-color 0.2s;
}

.fab-cart.hidden {
  display: none;
}

.fab-cart:hover {
  transform: scale(1.05);
  background-color: #d15c1e;
}

.fab-cart svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.fab-cart-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background-color: #191519;
  color: #fff;
  font-size: 0.85rem;
  font-weight: bold;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

/* Shopping Cart UI */
.cart-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 9998;
  transition: opacity 0.3s;
}

.cart-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.cart-panel {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 450px;
  max-width: 100%;
  background: var(--bg-color);
  z-index: 9999;
  box-shadow: -5px 0 25px rgba(0,0,0,0.2);
  display: flex;
  flex-direction: column;
  transform: translateX(0);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.cart-panel.hidden {
  transform: translateX(100%);
}

.cart-header {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--card-bg);
}

.cart-header h2 { margin: 0; font-size: 1.25rem; }
.close-btn { background: none; border: none; font-size: 1.75rem; cursor: pointer; color: var(--text-color); padding: 0; line-height: 1; }
.close-btn:hover { color: var(--amodei-orange); }

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.cart-item {
  display: flex;
  gap: 0.6rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.6rem;
}

.cart-item img {
  width: 55px; height: 55px; object-fit: cover; border-radius: 6px; border: 1px solid var(--border-color);
}

.cart-item-info {
  flex: 1;
}

.cart-item-info h4 { margin: 0 0 0.2rem; font-size: 0.95rem; line-height: 1.2; }
.cart-item-info .variant { margin: 0; font-size: 0.8rem; color: #888; margin-bottom: 0.6rem; }

.cart-item-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.qty-btn {
  background: var(--border-color);
  border: none; border-radius: 4px;
  width: 28px; height: 28px;
  cursor: pointer;
  color: var(--text-color);
  font-weight: bold;
}
.qty-btn:hover { background: var(--amodei-orange); color: white; }

.cart-item-price {
  font-weight: bold;
  font-size: 1.1rem;
}

.cart-footer {
  padding: 0.8rem;
  border-top: 1px solid var(--border-color);
  background: var(--card-bg);
}

.cart-total {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  font-size: 1rem;
  font-weight: bold;
  margin-bottom: 0.6rem;
}

.shipping-calculator {
  background: var(--bg-color);
  padding: 0.6rem;
  border-radius: 6px;
  margin-bottom: 0.6rem;
  border: 1px solid var(--border-color);
}

.shipping-calculator h4 { margin-top: 0; font-size: 0.9rem; margin-bottom: 0.4rem; }
.form-group { display: flex; gap: 0.4rem; margin-bottom: 0.6rem; }
.form-group input, .form-group select { flex: 1; padding: 0.4rem; font-size: 0.9rem; border: 1px solid var(--border-color); border-radius: 4px; background: var(--bg-color); color: var(--text-color); }
.calc-shipping-btn { width: 100%; padding: 0.5rem; font-size: 0.9rem; }
.shipping-result { margin-top: 0.6rem; font-size: 0.9rem; }
.error { color: #ff4444; }

.checkout-btn { width: 100%; padding: 0.6rem; font-size: 1rem; }