/* ===== Cart Hero ===== */
.cart-hero {
    position: relative;
    padding: 60px 0 40px;
    text-align: center;
    overflow: hidden;
}

.cart-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(0, 212, 255, 0.06) 0%, transparent 50%);
    animation: heroGlow 10s ease-in-out infinite alternate;
    z-index: 0;
}

@keyframes heroGlow {
    0% { transform: rotate(0deg) scale(1); }
    100% { transform: rotate(5deg) scale(1.1); }
}

.cart-hero-content {
    position: relative;
    z-index: 1;
    margin-bottom: 40px;
}

.cart-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 12px;
}

.cart-subtitle {
    font-size: 16px;
    color: var(--color-text-secondary);
}

/* ===== 3D Carousel ===== */
.carousel-container {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 60px;
    perspective: 1000px;
}

.carousel-track {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 280px;
    position: relative;
    transform-style: preserve-3d;
}

.carousel-item {
    position: absolute;
    width: 220px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    transform-style: preserve-3d;
}

.carousel-item img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.carousel-item .carousel-info {
    padding: 12px;
    text-align: center;
}

.carousel-item .carousel-name {
    font-size: 13px;
    font-weight: 500;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 6px;
}

.carousel-item .carousel-price {
    font-size: 14px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Position states */
.carousel-item.prev-2 {
    transform: translateX(-320px) translateZ(-200px) rotateY(25deg);
    opacity: 0.3;
    filter: blur(2px);
}

.carousel-item.prev-1 {
    transform: translateX(-180px) translateZ(-100px) rotateY(15deg);
    opacity: 0.6;
    filter: blur(1px);
}

.carousel-item.active {
    transform: translateX(0) translateZ(0) rotateY(0);
    opacity: 1;
    box-shadow: var(--shadow-glow), var(--shadow-md);
    border-color: transparent;
    z-index: 10;
}

.carousel-item.active::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    padding: 1px;
    background: linear-gradient(135deg, rgba(0,212,255,0.3), rgba(255,107,157,0.3));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.carousel-item.next-1 {
    transform: translateX(180px) translateZ(-100px) rotateY(-15deg);
    opacity: 0.6;
    filter: blur(1px);
}

.carousel-item.next-2 {
    transform: translateX(320px) translateZ(-200px) rotateY(-25deg);
    opacity: 0.3;
    filter: blur(2px);
}

.carousel-item.hidden {
    transform: translateX(0) translateZ(-300px);
    opacity: 0;
    pointer-events: none;
}

/* Carousel Buttons */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 20;
}

.carousel-btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}

.carousel-prev { left: 0; }
.carousel-next { right: 0; }

/* Carousel Dots */
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-border);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    padding: 0;
}

.carousel-dot.active {
    background: var(--color-accent);
    box-shadow: 0 0 10px var(--color-accent-glow);
    width: 24px;
    border-radius: 4px;
}

/* ===== Cart Main ===== */
.cart-main {
    padding: 40px 0 100px;
}

.cart-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 40px;
    align-items: start;
}

/* Cart Items Section */
.cart-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.cart-header-row h2 {
    font-size: 20px;
    font-weight: 600;
}

.cart-item-count {
    font-size: 14px;
    color: var(--color-text-secondary);
}

.cart-items {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Cart Item */
.cart-item {
    display: flex;
    gap: 20px;
    padding: 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: var(--transition);
    position: relative;
}

.cart-item:hover {
    border-color: rgba(0,212,255,0.2);
}

.cart-item-img {
    width: 100px;
    height: 100px;
    border-radius: 10px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--color-bg-alt);
}

.cart-item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-item-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.cart-item-name {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
}

.cart-item-name:hover {
    color: var(--color-accent);
}

.cart-item-variant {
    font-size: 12px;
    color: var(--color-text-secondary);
}

.cart-item-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
}

.cart-item-price {
    font-size: 16px;
    font-weight: 700;
}

.cart-item-price .sale {
    background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cart-item-remove {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: 6px;
    border-radius: 6px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
}

.cart-item-remove:hover {
    color: var(--danger);
    background: rgba(239,68,68,0.1);
}

/* Quantity in cart */
.cart-qty {
    display: flex;
    align-items: center;
    gap: 0;
}

.cart-qty .qty-btn {
    width: 32px;
    height: 32px;
    font-size: 14px;
}

.cart-qty .qty-input {
    width: 44px;
    height: 32px;
    font-size: 14px;
}

/* Empty State */
.cart-empty {
    text-align: center;
    padding: 60px 20px;
    display: none;
}

.cart-empty.show {
    display: block;
}

.empty-icon {
    color: var(--color-text-secondary);
    opacity: 0.3;
    margin-bottom: 20px;
}

.cart-empty h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.cart-empty p {
    color: var(--color-text-secondary);
    margin-bottom: 24px;
}

/* Summary Card */
.cart-summary {
    position: sticky;
    top: 100px;
}

.summary-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 20px;
}

.summary-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    font-size: 14px;
    color: var(--color-text-secondary);
}

.summary-row span:last-child {
    color: var(--color-text);
    font-weight: 500;
}

.summary-row.total {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
}

.summary-row.total span:last-child {
    font-size: 22px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.summary-divider {
    height: 1px;
    background: var(--color-border);
    margin: 12px 0;
}

.btn-checkout {
    margin-top: 20px;
    padding: 16px;
    font-size: 16px;
}

.payment-methods {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
}

.pay-icon-small {
    background: var(--color-bg);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

/* Promo Card */
.promo-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px;
}

.promo-card label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 10px;
    color: var(--color-text);
}

.promo-input-group {
    display: flex;
    gap: 8px;
}

.promo-input-group .form-input {
    flex: 1;
}

.promo-input-group .btn {
    padding: 10px 16px;
    white-space: nowrap;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .cart-layout {
        grid-template-columns: 1fr;
    }
    .cart-summary {
        position: relative;
        top: 0;
    }
    .carousel-container {
        padding: 20px 50px;
    }
    .carousel-item.prev-2 {
        transform: translateX(-200px) translateZ(-200px) rotateY(25deg);
    }
    .carousel-item.next-2 {
        transform: translateX(200px) translateZ(-200px) rotateY(-25deg);
    }
}

@media (max-width: 768px) {
    .cart-item {
        flex-direction: column;
    }
    .cart-item-img {
        width: 100%;
        height: 200px;
    }
    .carousel-container {
        padding: 20px 40px;
    }
    .carousel-item {
        width: 160px;
    }
    .carousel-item.prev-2,
    .carousel-item.next-2 {
        display: none;
    }
    .carousel-item.prev-1 {
        transform: translateX(-120px) translateZ(-100px) rotateY(15deg);
    }
    .carousel-item.next-1 {
        transform: translateX(120px) translateZ(-100px) rotateY(-15deg);
    }
}