/* ==========================================================================
   Component: Product Info
   Inline breadcrumbs, title + wishlist, tabs, description, format switcher
   ========================================================================== */

.product-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* --- Inline Breadcrumbs --- */
.product-info__breadcrumbs {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 500;
    font-style: italic;
    color: var(--color-dark-400);
}

.product-info__breadcrumbs a {
    color: var(--color-dark-400);
    transition: color 0.2s;
}

.product-info__breadcrumbs a:hover {
    color: var(--color-text);
    opacity: 1;
}

.product-info__breadcrumbs-sep {
    display: inline-flex;
    align-items: center;
    color: var(--color-dark-400);
}

.product-info__breadcrumbs-current {
    color: var(--color-text);
}

/* --- Header (title + wishlist) --- */
.product-info__header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.product-info__title {
    font-family: var(--font-family-serif);
    font-size: 44px;
    font-weight: 500;
    line-height: 48px;
    color: var(--color-text);
    flex: 1;
}

.product-info__wishlist {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 1px solid var(--color-accent-200);
    background: var(--color-white);
    cursor: pointer;
    flex-shrink: 0;
    color: var(--color-text);
    transition: border-color 0.2s, background-color 0.2s;
}

.product-info__wishlist:hover {
    border-color: var(--color-dark-400);
}

.product-info__wishlist--active {
    background: var(--color-red);
    border-color: var(--color-red);
    color: var(--color-white);
}

.product-info__wishlist--active svg {
    fill: currentColor;
}

/* --- Author + Rating row --- */
.product-info__author-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-base);
    color: var(--color-dark-400);
    margin-top: -8px;
}

.product-info__author-link {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.product-info__author-link:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.product-info__rating {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
}

.product-info__rating-stars {
    display: inline-flex;
    align-items: center;
    gap: 2px;
}

.product-info__rating-star {
    flex-shrink: 0;
    color: var(--color-dark-300);
}

.product-info__rating-star--active {
    color: var(--color-accent-700);
}

.product-info__rating-value {
    font-weight: 500;
    color: var(--color-text);
}

.product-info__rating-count {
    color: var(--color-dark-400);
}

/* --- Tabs --- */
.product-info__tabs {
    display: flex;
    gap: var(--spacing-lg);
    border-bottom: 1px solid var(--color-accent-200);
}

.product-info__tab {
    padding: 0 0 12px;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 500;
    line-height: 18px;
    color: var(--color-dark-500);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s;
    margin-bottom: -1px;
}

.product-info__tab:hover {
    color: var(--color-text);
}

.product-info__tab--active {
    color: var(--color-text);
    border-bottom-color: var(--color-text);
}

/* --- Panels --- */
.product-info__panel {
    display: none;
    animation: dsbPanelFadeIn 0.3s ease;
}

.product-info__panel--active {
    display: block;
}

@keyframes dsbPanelFadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Meta table --- */
.product-info__meta {
    width: 100%;
    border-collapse: collapse;
}

.product-info__meta-row + .product-info__meta-row {
    border-top: 1px solid var(--color-accent-100);
}

.product-info__meta-label {
    font-size: var(--font-size-base);
    color: var(--color-dark-400);
    padding: var(--spacing-sm) 0;
    width: 150px;
}

.product-info__meta-value {
    font-size: var(--font-size-base);
    color: var(--color-text);
    padding: var(--spacing-sm) 0;
    text-align: right;
}

/* --- Description --- */
.product-info__description {
    position: relative;
}

.product-info__description--truncated .product-info__description-text {
    max-height: 162px;
    overflow: hidden;
    -webkit-mask-image: linear-gradient(to bottom, #000 68%, transparent 100%);
    mask-image: linear-gradient(to bottom, #000 68%, transparent 100%);
}

.product-info__description-text {
    font-size: var(--font-size-lg);
    line-height: 24px;
    color: var(--color-dark-500);
    transition: max-height 0.4s ease;
}

.product-info__description-text p {
    margin-bottom: 20px;
}

.product-info__description-text p:last-child {
    margin-bottom: 0;
}

.product-info__read-more {
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
    text-decoration: underline;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm) 0 0;
}

.product-info__empty {
    font-size: var(--font-size-base);
    color: var(--color-dark-400);
}

/* ==========================================================================
   Sub-Component: Format Switcher
   ========================================================================== */

.product-formats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* --- Active format (big card) --- */
.product-formats__active {
    background: var(--color-accent-100);
    border-radius: 16px;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.product-formats__active-header {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.product-formats__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: var(--color-text);
    border-radius: var(--radius-sm);
    padding: 2px;
    color: var(--color-white);
    flex-shrink: 0;
}

.product-formats__icon svg {
    width: 18px;
    height: 18px;
    stroke: var(--color-white);
}

.product-formats__active-title {
    font-family: var(--font-family-serif);
    font-size: 20px;
    font-weight: 500;
    line-height: 24px;
    color: var(--color-text);
}

/* --- Pricing --- */
.product-formats__pricing {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.product-formats__price-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 10px;
}

.product-formats__price-label {
    font-size: var(--font-size-base);
    color: var(--color-dark-500);
    line-height: 18px;
}

.product-formats__price-value {
    display: flex;
    align-items: flex-end;
    gap: 12px;
}

.product-formats__price-old {
    font-family: var(--font-family-serif);
    font-style: italic;
    font-size: 20px;
    line-height: 20px;
    color: var(--color-text);
    opacity: 0.9;
    text-decoration: line-through;
}

.product-formats__price-sale {
    font-family: var(--font-family-serif);
    font-style: italic;
    font-size: 28px;
    line-height: 30px;
    color: var(--color-red);
}

.product-formats__price-current {
    font-family: var(--font-family-serif);
    font-style: italic;
    font-size: 20px;
    line-height: 20px;
    color: var(--color-text);
    opacity: 0.9;
}

.product-formats__price-total {
    font-family: var(--font-family-serif);
    font-style: italic;
    font-size: 28px;
    line-height: 30px;
    color: var(--color-text);
    font-weight: 600;
}

.product-formats__divider {
    height: 1px;
    background: var(--color-accent-200);
}

/* --- Cart row --- */
.product-formats__cart {
    display: flex;
    gap: 10px;
    align-items: stretch;
}

/* --- Quantity counter --- */
.product-formats__qty {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--color-accent-50);
    border: 1px solid var(--color-accent-200);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
    flex-shrink: 0;
}

.product-formats__qty-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 100%;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-text);
    background: var(--color-accent-50);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    padding: 10px;
}

.product-formats__qty-input {
    width: 30px;
    text-align: center;
    font-family: var(--font-family);
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--color-text);
    border: none;
    background: transparent;
    -moz-appearance: textfield;
    line-height: 20px;
}

.product-formats__qty-input::-webkit-inner-spin-button,
.product-formats__qty-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* --- Add to cart button --- */
.product-formats__add-to-cart {
    flex: 1;
    font-size: var(--font-size-lg);
    padding: 18px 26px;
}

.product-formats__add-to-cart svg {
    flex-shrink: 0;
}

/* --- Preorder badge (in header, next to format title) --- */
.product-formats__preorder-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 10px;
    background: #FFF8E1;
    border: 1px solid var(--color-accent-700);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-dark-600);
}

.product-formats__preorder-badge svg {
    flex-shrink: 0;
    stroke: var(--color-accent-700);
}

/* --- Out of stock --- */
.product-formats__out-of-stock {
    padding: var(--spacing-md);
    background: var(--color-accent-100);
    border-radius: var(--radius-md);
    text-align: center;
}

.product-formats__out-of-stock-text {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-dark-500);
    margin: 0;
}

/* --- Other formats (compact cards) --- */
.product-formats__others {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.product-formats__compact {
    flex: 1;
    min-width: 255px;
    background: var(--color-accent-100);
    border: 1px solid var(--color-accent-100);
    border-radius: 16px;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

.product-formats__compact-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    width: 100%;
}

.product-formats__compact-title {
    font-family: var(--font-family-serif);
    font-size: var(--font-size-lg);
    font-weight: 500;
    line-height: 20px;
    color: var(--color-text);
}

.product-formats__compact-meta {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
}

.product-formats__compact-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    width: 100%;
}

.product-formats__compact-label {
    font-size: var(--font-size-base);
    color: var(--color-dark-500);
    line-height: 18px;
}

.product-formats__compact-value {
    font-size: var(--font-size-base);
    color: var(--color-text);
    line-height: 18px;
}

.product-formats__compact-price {
    font-family: var(--font-family-serif);
    font-style: italic;
    font-size: 20px;
    line-height: 20px;
    color: var(--color-text);
    opacity: 0.9;
}

.product-formats__compact-btn {
    width: 100%;
    font-size: var(--font-size-base);
    padding: 15px 18px;
}

/* --- Responsive --- */

@media (max-width: 1024px) {
    .product-info__title {
        font-size: 32px;
        line-height: 36px;
    }

    .product-info__wishlist {
        width: 44px;
        height: 44px;
    }
}

@media (max-width: 768px) {
    .product-info__title {
        font-size: 26px;
        line-height: 32px;
    }

    .product-info__wishlist {
        width: 40px;
        height: 40px;
    }

    .product-info__wishlist svg {
        width: 20px;
        height: 20px;
    }

    .product-formats__active {
        padding: var(--spacing-md);
    }

    .product-formats__cart {
        flex-direction: column;
    }

    .product-formats__qty {
        align-self: flex-start;
    }

    .product-formats__add-to-cart {
        font-size: var(--font-size-base);
        padding: 15px 18px;
    }

    .product-formats__others {
        flex-direction: column;
    }

    .product-formats__compact {
        min-width: 100%;
    }

    .product-formats__price-sale {
        font-size: 24px;
        line-height: 26px;
    }
}