/* pages/product-detail.css — Product detail layout · tabs · reviews */
/* 상품 상세 — 모바일: 갤러리 → 구매패널 → 탭 / PC: 2열 그리드 */
/* fixed 헤더 여백 — v3 product-detail.html · layout/page-intro.css 와 동일 리듬 */
.product-detail-layout {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 1300px;
    margin-inline: auto;
    padding-top: calc(var(--header-height) + 4rem);
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .product-detail-layout {
        padding-top: calc(var(--header-height) + 4.5rem);
        padding-inline: 1.5rem;
        gap: 2.5rem;
    }
}

@media (min-width: 1024px) {
    .product-detail-layout {
        padding-top: calc(var(--header-height) + 5rem);
        column-gap: 3rem;
        row-gap: 2.5rem;
    }
}

@media (min-width: 1280px) {
    .product-detail-layout {
        column-gap: 4rem;
    }
}

.product-detail-gallery,
.product-detail-purchase {
    padding-inline: var(--space-page);
}

@media (min-width: 768px) {
    .product-detail-gallery,
    .product-detail-purchase {
        padding-inline: 0;
    }
}

@media (min-width: 900px) {
    .product-detail-layout {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        grid-template-areas:
            "gallery purchase"
            "tabs tabs"
            "body body";
        align-items: start;
    }

    .product-detail-gallery {
        grid-area: gallery;
    }

    .product-detail-purchase {
        grid-area: purchase;
        position: sticky;
        --purchase-sticky-gap: 2rem;
        top: calc(var(--header-height) + var(--purchase-sticky-gap));
        z-index: 30;
        align-self: start;
        transition: top 0.5s ease;
    }

    .product-detail-tabs {
        grid-area: tabs;
        width: 100%;
        max-width: 1000px;
        margin-inline: auto;
    }

    .product-detail-body {
        grid-area: body;
        width: 100%;
        max-width: 1000px;
        margin-inline: auto;
    }
}

#main-content .product-detail-layout,
.site-main .product-detail-layout {
    padding-bottom: var(--page-end-padding);
}

.product-detail-purchase__title {
    font-size: 2rem;
    line-height: var(--leading-ko-heading);
    letter-spacing: var(--tracking-ko-heading);
    color: var(--gray-900);
}

@media (min-width: 768px) {
    .product-detail-purchase__title {
        font-size: 2.5rem;
    }
}

@media (min-width: 1024px) {
    .product-detail-purchase__title {
        font-size: 2.25rem;
    }
}

/* 상품 상세 탭 */
#detail-tabs-wrap {
    position: sticky;
    top: var(--header-height);
    z-index: 30;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: none;
    transition: top 0.5s ease;
}

body:has(#main-header.scrolled) #detail-tabs-wrap {
    top: var(--header-height-scrolled);
}

@media (min-width: 1024px) {
    body:has(#main-header.scrolled) .product-detail-purchase {
        --purchase-sticky-gap: 2.5rem;
        top: calc(var(--header-height-scrolled) + var(--purchase-sticky-gap));
    }
}

#detail-tabs-wrap .page-intro__inner {
    max-width: none;
    padding-inline: 0;
}

@media (max-width: 768px) {
    #detail-tabs-wrap .page-intro__inner {
        padding-inline: var(--space-page);
    }
}

#detail-tabs-wrap .detail-tabs__scroll {
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

#detail-tabs-wrap .detail-tabs__scroll::-webkit-scrollbar {
    display: none;
}

#detail-tabs-wrap .page-intro__tabs {
    margin-top: 0;
    flex-wrap: nowrap;
    width: max-content;
    min-width: 100%;
    border-bottom: 1px solid var(--gray-200);
    --nav-link-base: var(--gray-900);
    --nav-underline-height: 1px;
    --nav-link-fill-duration: 0.3s;
}

#detail-tabs-wrap .page-intro__tab::after {
    bottom: -1px;
    z-index: 1;
}

#detail-tabs-wrap .page-intro__tab:hover::after,
#detail-tabs-wrap .page-intro__tab:focus-visible::after,
#detail-tabs-wrap .page-intro__tab.is-active::after {
    width: 100%;
}

#detail-tabs-wrap .detail-tab__count {
    margin-inline-start: 0.125rem;
    font-weight: 300;
    color: var(--brand-green);
    background: none;
    background-image: none;
    -webkit-background-clip: border-box;
    background-clip: border-box;
    -webkit-text-fill-color: var(--brand-green);
}

#detail-tabs-wrap .page-intro__tab:hover .detail-tab__count,
#detail-tabs-wrap .page-intro__tab:focus-visible .detail-tab__count,
#detail-tabs-wrap .page-intro__tab.is-active .detail-tab__count {
    color: var(--brand-green);
    -webkit-text-fill-color: var(--brand-green);
}

/* 상품 상세 — 에디터 본문(it_explan) 블록 전체 상·하 여백 (문단 간격 아님) */
#sit_inf_explan {
    margin-top: 4rem;
    margin-bottom: 6rem;
    color: var(--gray-700);
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.8;
    word-break: keep-all;
    overflow-wrap: break-word;
}

#sit_inf_explan > :first-child {
    margin-top: 0;
}

#sit_inf_explan > :last-child {
    margin-bottom: 0;
}

#sit_inf_explan h2,
#sit_inf_explan h3,
#sit_inf_explan h4 {
    color: var(--gray-900);
    font-weight: 800;
    line-height: 1.35;
    letter-spacing: var(--tracking-ko-heading);
}

#sit_inf_explan h2 {
    margin: 3.5rem 0 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--gray-200);
    font-size: 1.5rem;
}

#sit_inf_explan h3 {
    margin: 2.5rem 0 1rem;
    font-size: 1.25rem;
}

#sit_inf_explan h4 {
    margin: 2rem 0 0.75rem;
    font-size: 1.125rem;
}

#sit_inf_explan p {
    margin: 1rem 0;
}

#sit_inf_explan strong {
    color: var(--gray-900);
    font-weight: 700;
}

#sit_inf_explan ul,
#sit_inf_explan ol {
    margin: 1.25rem 0;
    padding-left: 1.5rem;
}

#sit_inf_explan ul {
    list-style: disc;
}

#sit_inf_explan ol {
    list-style: decimal;
}

#sit_inf_explan li {
    padding-left: 0.25rem;
}

#sit_inf_explan li + li {
    margin-top: 0.625rem;
}

#sit_inf_explan table {
    width: 100%;
    margin: 1.5rem 0 2rem;
    border: 1px solid var(--gray-200);
    border-spacing: 0;
    border-collapse: separate;
    border-radius: var(--radius-card);
    overflow: hidden;
    table-layout: fixed;
    font-size: 1.0625rem;
    line-height: 1.65;
}

#sit_inf_explan th,
#sit_inf_explan td {
    padding: 1rem 1.125rem;
    border-bottom: 1px solid var(--gray-100);
    text-align: left;
    vertical-align: top;
    overflow-wrap: anywhere;
}

#sit_inf_explan th {
    width: 8rem;
    background: var(--surface-muted);
    color: var(--gray-900);
    font-weight: 700;
}

#sit_inf_explan tr:last-child > th,
#sit_inf_explan tr:last-child > td {
    border-bottom: 0;
}

#sit_inf_explan figure {
    margin: 2rem 0;
}

#sit_inf_explan img {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    margin-inline: auto;
    border-radius: var(--radius-card-md);
}

#sit_inf_explan a {
    color: var(--brand-green);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 0.2em;
}

#sit_inf_explan blockquote {
    margin: 1.5rem 0;
    padding: 1rem 1.25rem;
    border-left: 3px solid var(--brand-green);
    background: var(--surface-muted);
    color: var(--gray-700);
}

@media (min-width: 768px) {
    #sit_inf_explan {
        margin-top: 5rem;
        margin-bottom: 10rem;
    }
}

@media (max-width: 639px) {
    #sit_inf_explan h2 {
        margin-top: 2.75rem;
        font-size: 1.375rem;
    }

    #sit_inf_explan th,
    #sit_inf_explan td {
        padding: 0.875rem;
    }

    #sit_inf_explan th {
        width: 5.5rem;
    }
}

@media (max-width: 767px) {
    .product-detail-body .pt-24 {
        padding-top: calc(var(--header-height) + var(--title-body-gap-lg));
    }

    .product-detail-body .pb-16 {
        padding-bottom: var(--section-py);
    }

    .product-detail-body .px-6 {
        padding-inline: var(--space-page);
    }
}

.product-review-item.is-hidden,
.product-qa-item.is-hidden {
    display: none;
}

.product-review-item__title {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.45;
    color: var(--gray-900);
    word-break: keep-all;
}

.product-review-item__date {
    font-size: var(--text-ui-sm);
    font-weight: 500;
    color: var(--text-subtle, var(--gray-400));
}

.product-review-item__author {
    font-size: var(--text-ui-sm);
    font-weight: 900;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--brand-green) 50%, transparent);
}

@media (min-width: 768px) {
    .product-review-item__title {
        font-size: 1.125rem;
    }

    .product-review-item__author {
        font-size: var(--text-ui-sm);
    }
}

/* 상품 Q&A — 질문·답변 풀폭 카드 */
.product-qa-section__inner {
    max-width: 1300px;
    margin-inline: auto;
    padding-block: var(--section-py);
    padding-inline: var(--space-page);
}

.product-qa-section__header {
    max-width: 800px;
    margin-inline: auto;
    margin-bottom: var(--section-head-gap);
    text-align: center;
}

.product-qa-list {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--title-body-gap-lg);
}

.product-qa-item {
    width: 100%;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-100);
}

.product-qa-item:first-child {
    padding-top: 0;
    border-top: none;
}

.product-qa-item__meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.product-qa-item__date {
    font-size: var(--text-ui-sm);
    font-weight: 500;
    color: var(--text-subtle, var(--gray-400));
}

.product-qa-item__question {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    width: 100%;
    margin-bottom: 1.25rem;
}

.product-qa-item:not(:has(.product-qa-item__answer)) .product-qa-item__question {
    margin-bottom: 0;
}

.product-qa-item__mark {
    flex-shrink: 0;
    font-size: 1.25rem;
    font-weight: 900;
    line-height: 1;
}

@media (min-width: 768px) {
    .product-qa-item__mark {
        font-size: 1.375rem;
    }
}

.product-qa-item__mark--q {
    color: var(--gray-300);
}

.product-qa-item__mark--a {
    color: var(--brand-gold);
}

.product-qa-item__q-text {
    flex: 1;
    min-width: 0;
    font-size: 1.125rem;
    font-weight: 700;
    line-height: 1.45;
    color: var(--gray-900);
    word-break: keep-all;
}

@media (min-width: 768px) {
    .product-qa-item__q-text {
        font-size: 1.25rem;
    }
}

.product-qa-item__answer {
    width: 100%;
    background-color: var(--surface-subtle);
    border-radius: var(--radius-card-md);
    padding: 1.75rem;
}

@media (min-width: 768px) {
    .product-qa-item__answer {
        padding: 2.25rem;
    }
}

.product-qa-item__answer-inner {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    width: 100%;
}

.product-qa-item__answer-body {
    flex: 1;
    min-width: 0;
}

.product-qa-item__a-text {
    font-size: var(--text-ui-md);
    font-weight: 500;
    line-height: 1.7;
    color: var(--gray-600);
    word-break: keep-all;
}

@media (min-width: 768px) {
    .product-qa-item__a-text {
        font-size: 1rem;
    }
}

.product-qa-item__signature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1.25rem;
    font-size: var(--text-ui-sm);
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--gray-600);
}

@media (min-width: 768px) {
    .product-qa-item__signature {
        font-size: var(--text-ui-sm);
    }
}

.product-qa-item__signature::before {
    content: "";
    flex-shrink: 0;
    width: 1rem;
    height: 1px;
    background-color: var(--gray-200);
}

.product-qa-section__inner--compact {
    padding-block: 0.25rem var(--page-end-padding);
}

@media (min-width: 768px) {
    .product-qa-section__inner--compact {
        padding-block: 0.5rem var(--page-end-padding);
    }
}

.product-qa-item__q-text--heading {
    margin: 0;
}

.product-qa-item__q-detail {
    padding: 0 var(--space-page) 1.5rem;
    margin-top: -0.25rem;
}

@media (min-width: 768px) {
    .product-qa-item__q-detail {
        padding-left: calc(var(--space-page) + 0.5rem);
        padding-right: calc(var(--space-page) + 0.5rem);
        padding-bottom: 2rem;
    }
}

/* FAQ — 질문 클릭 시 답변 토글 (single accordion) */
.product-qa-list[data-accordion] .product-qa-item__meta {
    margin-bottom: 0.375rem;
}

.product-qa-list[data-accordion] .product-qa-item:has(.product-qa-item__meta) {
    padding-top: 1rem;
}

@media (min-width: 768px) {
    .product-qa-list[data-accordion] .product-qa-item:has(.product-qa-item__meta) {
        padding-top: 1.25rem;
    }
}

.product-qa-list[data-accordion] .product-qa-item__question--static {
    display: flex;
    align-items: baseline;
    align-items: first baseline;
    gap: 1rem;
    padding-block: 1.125rem;
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .product-qa-list[data-accordion] .product-qa-item__question--static {
        padding-block: 1.25rem;
    }
}

.product-qa-list[data-accordion] .product-qa-item__question--static .product-qa-item__q-text {
    margin: 0;
}

.product-qa-list[data-accordion] {
    gap: 0;
}

.product-qa-list[data-accordion] .product-qa-item {
    padding-top: 0;
}

.product-qa-list[data-accordion] .product-qa-item__heading {
    margin: 0;
}

.product-qa-list[data-accordion] .product-qa-item__trigger {
    padding-block: 1.125rem;
    align-items: baseline;
    align-items: first baseline;
}

.product-qa-list[data-accordion] .product-qa-item__mark {
    font-size: 1.0625rem;
    line-height: 1;
}

.product-qa-list[data-accordion] .product-qa-item__q-text {
    font-size: 1rem;
}

.product-qa-list[data-accordion] .product-qa-item__answer-inner {
    align-items: baseline;
    align-items: first baseline;
}

.product-qa-list[data-accordion] .product-qa-item__a-text {
    margin: 0;
}

.product-qa-list[data-accordion] .product-qa-item__icon {
    align-self: center;
}

@media (min-width: 768px) {
    .product-qa-list[data-accordion] .product-qa-item__trigger {
        padding-block: 1.25rem;
    }

    .product-qa-list[data-accordion] .product-qa-item__mark {
        font-size: 1rem;
    }

    .product-qa-list[data-accordion] .product-qa-item__q-text {
        font-size: 1.125rem;
    }
}

.product-qa-item__trigger {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    padding: 0;
    border: 0;
    background: transparent;
    font-family: inherit;
    text-align: left;
    cursor: pointer;
    transition: color 0.2s ease;
}

.product-qa-item__trigger:hover,
.product-qa-item__trigger:focus-visible {
    color: var(--brand-green);
}

.product-qa-item__trigger:hover .product-qa-item__q-text,
.product-qa-item__trigger:focus-visible .product-qa-item__q-text {
    color: var(--brand-green);
}

.product-qa-item__trigger[aria-expanded="true"] .product-qa-item__q-text {
    color: var(--brand-green);
}

.product-qa-item__trigger[aria-expanded="true"] {
    margin-bottom: 1.25rem;
}

.product-qa-list[data-accordion] .product-qa-item__trigger[aria-expanded="true"] {
    margin-bottom: 0.625rem;
}

.product-qa-list[data-accordion] .product-qa-item__answer {
    padding: 1.25rem 1.75rem 2rem;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .product-qa-list[data-accordion] .product-qa-item__answer {
        padding: 1.5rem 2.25rem 2.5rem;
        margin-bottom: 1.75rem;
    }
}

.product-qa-item__icon {
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
    margin-left: auto;
    color: var(--text-subtle);
    transition: transform 0.3s ease, color 0.2s ease;
}

.product-qa-item__trigger[aria-expanded="true"] .product-qa-item__icon {
    transform: rotate(180deg);
    color: var(--brand-green);
}

.product-qa-item__answer[hidden] {
    display: none;
}

.product-qa-section__footer {
    margin-top: 4rem;
    display: flex;
    justify-content: center;
}

/* ── 상품 상세 — 리뷰·문의 작성 폼 ── */
.product-write-toolbar {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.product-write-form {
    margin-bottom: 2.5rem;
}

.product-write-form[hidden] {
    display: none;
}

.product-write-form__inner.board-form--embedded {
    max-width: none;
    margin: 0;
    padding: 2rem 1.5rem;
    background: var(--white);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card-sm);
}

@media (min-width: 768px) {
    .product-write-form__inner.board-form--embedded {
        padding: 2.5rem 2.5rem;
        border-radius: var(--radius-card-md);
    }
}

.product-write-form__actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 0.5rem;
}

@media (min-width: 640px) {
    .product-write-form__actions {
        flex-direction: row;
    }
}

.product-write-form__success {
    margin-bottom: 1.5rem;
    padding: 0.875rem 1rem;
    border-radius: var(--form-radius);
    background: color-mix(in srgb, var(--brand-green) 10%, var(--white));
    border: 1px solid color-mix(in srgb, var(--brand-green) 25%, transparent);
    font-size: var(--text-ui-md);
    font-weight: 600;
    color: var(--brand-green);
}

.product-write-form__success[hidden] {
    display: none;
}

.product-rating-input {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.product-rating-input__star {
    display: inline-flex;
    padding: 0.125rem;
    border: 0;
    background: transparent;
    cursor: pointer;
    color: var(--gray-300);
    transition: color 0.15s ease, transform 0.15s ease;
}

.product-rating-input__star:hover,
.product-rating-input__star:focus-visible {
    transform: scale(1.05);
}

.product-rating-input__star.is-active,
.product-rating-input__star.is-hover {
    color: var(--brand-gold);
}

.product-rating-input__icon {
    width: 1.75rem;
    height: 1.75rem;
    fill: currentColor;
}

@media (min-width: 768px) {
    .product-rating-input__icon {
        width: 2rem;
        height: 2rem;
    }
}

@media (max-width: 360px) {
    .purchase-btn-grid .btn--card {
        font-size: 0.625rem;
        letter-spacing: 0.08em;
        padding-top: 0.875rem;
        padding-bottom: 0.875rem;
    }
}

/* ── 선택 옵션 · 수량 · 합계 (v3 product-detail) ── */
#sit_ov_from .product-detail-sel-option {
    background-color: var(--surface-subtle);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-card-md);
    padding: 1.5rem;
}

#sit_ov_from .product-detail-sel-option__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

#sit_ov_from .product-detail-sel-option__qty-only .sit_opt_prc {
    display: none;
}

#sit_ov_from .product-detail-sel-option__choice {
    padding-bottom: 1rem;
    border-bottom: 1px solid color-mix(in srgb, var(--gray-200) 60%, transparent);
}

#sit_ov_from .product-detail-sel-option__choice:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

#sit_ov_from .product-detail-sel-option .opt_count {
    display: inline-flex;
    align-items: center;
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-pill, 9999px);
    padding-inline: 0.25rem;
}

#sit_ov_from .product-detail-sel-option .num_input {
    width: 2rem;
    border: 0;
    background: transparent;
    padding: 0;
    text-align: center;
    font-size: var(--text-ui-md);
    font-weight: 700;
    box-shadow: none;
}

#sit_ov_from .product-detail-sel-option .sit_qty_minus,
#sit_ov_from .product-detail-sel-option .sit_qty_plus,
#sit_ov_from .product-detail-sel-option .sit_opt_del {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: 0;
    background: transparent;
    color: var(--text-subtle, var(--gray-400));
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    transition: color 0.2s ease;
}

#sit_ov_from .product-detail-sel-option .sit_qty_minus:hover,
#sit_ov_from .product-detail-sel-option .sit_qty_plus:hover,
#sit_ov_from .product-detail-sel-option .sit_opt_del:hover,
#sit_ov_from .product-detail-sel-option .sit_qty_minus:focus-visible,
#sit_ov_from .product-detail-sel-option .sit_qty_plus:focus-visible,
#sit_ov_from .product-detail-sel-option .sit_opt_del:focus-visible {
    color: var(--gray-900);
}

#sit_ov_from .product-detail-qty-row > span,
#sit_ov_from .product-detail-total-row > span:first-child {
    font-size: var(--text-ui-sm); /* 14px — 라벨 가독성 */
    font-weight: 700;
    letter-spacing: 0.02em;
    line-height: 1.4;
}

/* 구분선은 박스 상단 → margin으로 선 위 간격, padding으로 선 아래 간격 */
#sit_ov_from .product-detail-total-row {
    margin-top: 1.5rem !important;
    padding-top: 1.5rem;
    border-top: 1px solid color-mix(in srgb, var(--gray-200) 60%, transparent);
}

#sit_ov_from .product-detail-total-row > span:first-child {
    color: var(--gray-900);
}

#sit_ov_from .product-detail-qty-row > span {
    color: var(--gray-700);
}

#sit_ov_from #total-price {
    font-size: 1.25rem;
    font-weight: 900;
    color: var(--brand-green);
}

@media (min-width: 768px) {
    #sit_ov_from #total-price {
        font-size: 1.375rem;
    }
}

#sit_ov_from #sit_tot_price {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.purchase-btn-grid #wishlist-btn {
    padding-inline: 0.75rem;
    min-width: 3rem;
}

.purchase-btn-grid .btn--card:not(#wishlist-btn) {
    width: 100%;
}

.purchase-btn-grid__icon {
    width: 1.125rem;
    height: 1.125rem;
}

.purchase-btn-grid__icon svg {
    width: 1.125rem;
    height: 1.125rem;
}

.itemform-naverpay {
    width: 100%;
}

.itemform-naverpay > div,
.itemform-naverpay iframe {
    width: 100% !important;
    max-width: 100%;
}

#sit_ov_from .sns_area:not(.hidden) {
    margin-top: 0.75rem;
}

#section-reviews .pg_wrap,
#section-qa .pg_wrap {
    display: none;
}