/* --- 13. CART SIDEBAR --- */
.cart-sidebar {
    position: fixed;
    top: 0;
    right: -100%;
    width: 420px;
    height: 100%;
    background: var(--dark);
    border-left: 1px solid var(--border);
    z-index: 2000;
    padding: 40px;
    transition: right 0.5s cubic-bezier(0.77, 0, 0.175, 1);
    display: flex;
    flex-direction: column;
}

.cart-sidebar.active {
    right: 0;
}

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.cart-header h3 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    letter-spacing: 2px;
}

#close-cart {
    font-size: 28px;
    cursor: pointer;
    color: var(--text-gray);
    transition: color 0.2s;
    background: none;
    border: none;
    padding: 4px;
    line-height: 1;
}

#close-cart:hover {
    color: var(--text-white);
}

.cart-items-container {
    flex: 1;
    overflow-y: auto;
}

.cart-footer {
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.total-price {
    font-family: var(--font-condensed);
    font-weight: 900;
    font-size: 1rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-gray);
    margin-bottom: 16px;
}

.total-price span {
    color: var(--cyan);
    font-size: 1.4rem;
}

/* Cart overlay backdrop */
.cart-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}

.cart-overlay.active {
    opacity: 1;
    pointer-events: all;
}

/* Prevent body scroll when sidebar open */
body.cart-open {
    overflow: hidden;
}

@media (max-width: 900px) {
    .cart-sidebar {
        width: 100%;
    }
}

@media (max-width: 600px) {
    .cart-sidebar {
        padding: 28px 20px;
    }
}