/* =============================================
   58 MOTO — Product Detail Page (PDP)
   ============================================= */

/* ---------- PDP Layout ---------- */
.pdp {
    padding-top: calc(var(--announcement-height) + var(--header-height) + 20px);
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding-left: var(--content-padding);
    padding-right: var(--content-padding);
    padding-bottom: 80px;
}

.pdp__main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px 60px;
    margin-top: 24px;
}

/* ---------- Gallery ---------- */
.pdp-gallery {
    position: sticky;
    top: calc(var(--header-height) + 20px);
    align-self: start;
}

.pdp-gallery__main {
    position: relative;
    overflow: hidden;
    background: var(--color-bg-secondary);
    margin-bottom: 12px;
    cursor: zoom-in;
}

.pdp-gallery__main img {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
    display: block;
    transition: opacity 0.4s ease;
}

.pdp-gallery__badge {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 3;
    padding: 5px 12px;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    background: var(--color-black);
    color: var(--color-white);
}

.pdp-gallery__badge--sale {
    background: #c0392b;
}

.pdp-gallery__badge--likenew {
    background: #f59e0b;
}

.pdp-gallery__badge--limited {
    background: var(--color-accent-dark);
}

.pdp-gallery__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(4px);
    border: none;
    cursor: pointer;
    z-index: 3;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.pdp-gallery:hover .pdp-gallery__nav {
    opacity: 1;
}

.pdp-gallery__nav--prev { left: 12px; }
.pdp-gallery__nav--next { right: 12px; }

.pdp-gallery__thumbs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    scrollbar-width: none;
}

.pdp-gallery__thumbs::-webkit-scrollbar { display: none; }

.pdp-gallery__thumb {
    flex-shrink: 0;
    width: 72px;
    height: 90px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    opacity: 0.5;
    transition: all 0.3s ease;
}

.pdp-gallery__thumb--active {
    border-color: var(--color-black);
    opacity: 1;
}

.pdp-gallery__thumb:hover {
    opacity: 1;
}

.pdp-gallery__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ---------- Product Info ---------- */
.pdp-info {
    padding-top: 8px;
}

.pdp-info__brand {
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-mid-grey);
    margin-bottom: 8px;
}

.pdp-info__name {
    font-family: var(--font-display);
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 400;
    letter-spacing: 1px;
    line-height: 1.2;
    margin-bottom: 4px;
}

.pdp-info__sku {
    font-size: 11px;
    color: var(--color-mid-grey);
    letter-spacing: 0.5px;
    margin-bottom: 20px;
}

.pdp-info__price {
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.pdp-info__price-original {
    text-decoration: line-through;
    color: var(--color-mid-grey);
    font-weight: 300;
    font-size: 16px;
    margin-right: 10px;
}

.pdp-info__price-sale {
    color: #c0392b;
}

.pdp-info__price-save {
    display: inline-block;
    margin-left: 10px;
    font-size: 12px;
    font-weight: 500;
    color: #c0392b;
    background: #fee2e2;
    padding: 2px 8px;
    border-radius: 2px;
}

.pdp-info__stock {
    font-size: 12px;
    color: var(--color-mid-grey);
    margin-bottom: 24px;
}

.pdp-info__stock--instock { color: #16a34a; }
.pdp-info__stock--out { color: #dc2626; }

/* Divider */
.pdp-info__divider {
    height: 1px;
    background: var(--color-light-grey);
    margin: 24px 0;
}

/* ---------- Variant Selectors ---------- */
.pdp-variant {
    margin-bottom: 20px;
}

.pdp-variant__label {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.pdp-variant__label span {
    font-weight: 300;
    text-transform: none;
    letter-spacing: 0;
    color: var(--color-mid-grey);
}

.pdp-variant__options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pdp-variant__btn {
    padding: 10px 20px;
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.5px;
    border: 1px solid var(--color-light-grey);
    background: transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 54px;
    text-align: center;
}

.pdp-variant__btn:hover {
    border-color: var(--color-black);
}

.pdp-variant__btn--active {
    border-color: var(--color-black);
    background: var(--color-black);
    color: var(--color-white);
}

.pdp-variant__btn--disabled {
    opacity: 0.3;
    cursor: not-allowed;
    text-decoration: line-through;
}

/* ---------- Add to Cart ---------- */
.pdp-actions {
    display: flex;
    gap: 12px;
    margin-top: 28px;
}

.pdp-actions__cart {
    flex: 1;
    padding: 16px 32px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    background: var(--color-black);
    color: var(--color-white);
    border: 1px solid var(--color-black);
    cursor: pointer;
    transition: all 0.3s ease;
}

.pdp-actions__cart:hover {
    background: var(--color-dark-grey);
}

.pdp-actions__cart:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pdp-actions__wishlist {
    padding: 16px 18px;
    border: 1px solid var(--color-light-grey);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pdp-actions__wishlist:hover {
    border-color: var(--color-black);
}

/* ---------- Product Details / Accordion ---------- */
.pdp-details {
    margin-top: 36px;
}

.pdp-accordion {
    border-top: 1px solid var(--color-light-grey);
}

.pdp-accordion__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 18px 0;
    text-align: left;
    cursor: pointer;
    border-bottom: 1px solid var(--color-light-grey);
    background: transparent;
    border-left: none;
    border-right: none;
    transition: opacity 0.2s;
}

.pdp-accordion__header:hover {
    opacity: 0.6;
}

.pdp-accordion__title {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.pdp-accordion__icon {
    font-size: 18px;
    font-weight: 300;
    transition: transform 0.3s ease;
}

.pdp-accordion--open .pdp-accordion__icon {
    transform: rotate(45deg);
}

.pdp-accordion__body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.pdp-accordion--open .pdp-accordion__body {
    max-height: 600px;
    padding: 16px 0 20px;
}

.pdp-accordion__body p,
.pdp-accordion__body ul,
.pdp-accordion__body li {
    font-size: 13px;
    font-weight: 300;
    line-height: 1.7;
    color: var(--color-dark-grey);
}

.pdp-accordion__body ul {
    padding-left: 20px;
}

/* Specs Table */
.pdp-specs {
    width: 100%;
    border-collapse: collapse;
}

.pdp-specs tr { border-bottom: 1px solid var(--color-bg-secondary); }
.pdp-specs tr:last-child { border-bottom: none; }

.pdp-specs td {
    padding: 10px 0;
    font-size: 13px;
    font-weight: 300;
    line-height: 1.5;
    vertical-align: top;
}

.pdp-specs td:first-child {
    font-weight: 500;
    color: var(--color-black);
    width: 140px;
    padding-right: 20px;
}

.pdp-specs td:last-child {
    color: var(--color-dark-grey);
}

/* ---------- Gift Included ---------- */
.pdp-gift {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: #fef3c7;
    border-radius: 2px;
    margin-top: 16px;
    font-size: 13px;
    font-weight: 400;
}

.pdp-gift__icon {
    font-size: 18px;
    flex-shrink: 0;
}

/* ---------- Policy Icon Rows ---------- */
.pdp-policies {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.pdp-policy {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid var(--color-bg-secondary);
}

.pdp-policy:last-child {
    border-bottom: none;
}

.pdp-policy__icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-dark-grey);
}

.pdp-policy__text {
    font-size: 13px;
    font-weight: 400;
    color: var(--color-dark-grey);
    letter-spacing: 0.2px;
}

/* ---------- Description (Xem thêm) ---------- */
.pdp-desc {
    position: relative;
}

.pdp-desc__content {
    max-height: 120px;
    overflow: hidden;
    font-size: 13px;
    font-weight: 300;
    line-height: 1.8;
    color: var(--color-dark-grey);
    transition: max-height 0.4s ease;
}

.pdp-desc__content p {
    margin-bottom: 8px;
}

.pdp-desc--expanded .pdp-desc__content {
    max-height: 2000px;
}

.pdp-desc__fade {
    position: absolute;
    bottom: 32px;
    left: 0;
    right: 0;
    height: 50px;
    background: linear-gradient(to top, rgba(255,255,255,1), rgba(255,255,255,0));
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.pdp-desc--expanded .pdp-desc__fade {
    opacity: 0;
}

.pdp-desc__toggle {
    display: block;
    margin: 10px auto 0;
    padding: 6px 0;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.5px;
    color: var(--color-black);
    border: none;
    background: none;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: opacity 0.2s;
}

.pdp-desc__toggle:hover {
    opacity: 0.6;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .pdp__main {
        gap: 30px 40px;
    }
}

@media (max-width: 768px) {
    .pdp__main {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .pdp-gallery {
        position: static;
    }

    .pdp-gallery__main img {
        aspect-ratio: 1/1;
    }

    .pdp-info__name {
        font-size: 22px;
    }

    .pdp-actions {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        padding: 12px 16px;
        background: white;
        z-index: 100;
        border-top: 1px solid var(--color-light-grey);
        margin-top: 0;
    }
}

/* ---------- Related Products ---------- */
.pdp-related {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 60px var(--content-padding) 40px;
}

.pdp-related__title {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 400;
    text-align: center;
    letter-spacing: 2px;
    margin-bottom: 32px;
}

.pdp-related__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

@media (max-width: 768px) {
    .pdp-related__grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .pdp-related { padding: 40px var(--content-padding) 20px; }
}