/* ==============================================
   shop.css - Shop pages, product detail, breadcrumb
   ============================================== */

/* ===== Auth Pages ===== */
.auth-social-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.auth-social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3);
    border-radius: var(--radius-card);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    border: 1px solid var(--color-border);
    background: var(--color-card-bg);
    color: var(--color-text);
    cursor: pointer;
    transition: opacity var(--transition-fast);
    text-decoration: none;
}

.auth-social-btn:hover {
    opacity: 0.85;
}

.auth-social-btn--kakao {
    background: var(--brand-kakao);
    color: #191919;
    border-color: var(--brand-kakao);
}

.auth-social-btn--naver {
    background: var(--brand-naver);
    color: var(--color-on-dark);
    border-color: var(--brand-naver);
}

.auth-social-btn--google {
    background: var(--color-card-bg);
    color: var(--color-text);
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin: var(--space-6) 0;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.auth-dev-section {
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-border);
}

.auth-dev-label {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-2);
    text-align: center;
}

.auth-dev-btn {
    background: hsl(var(--green-600));
    color: var(--color-on-dark);
    border: none;
    font-weight: var(--font-semibold);
}

.auth-referral-hint {
    color: var(--color-text-muted);
    font-size: var(--text-xs);
}

/* --- Shop Info --- */
.shop-info {
    flex: 1;
    min-width: 0;
}

/* --- Product Detail Section --- */
.product-detail {
    max-width: 1000px;
    margin: 0 auto;
}

/* --- Shop Header --- */
.shop-header {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.shop-header-inner {
    display: flex;
    align-items: center;
    gap: var(--space-5);
}

.shop-logo {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-card);
    object-fit: cover;
    border: 1px solid var(--color-border);
}

.shop-name {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
}

.shop-desc {
    font-size: var(--text-md);
    color: var(--color-text-muted);
    margin-top: var(--space-1);
    line-height: var(--leading-normal);
}

.shop-product-count {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-1);
    display: inline-block;
}

/* --- Card Link (for shop product cards) --- */
.card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

/* --- Breadcrumb --- */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--color-primary);
}

.breadcrumb-sep {
    opacity: 0.4;
}

/* --- Product Detail --- */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
}

@media (min-width: 768px) {
    .detail-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.detail-image-wrap {
    position: relative;
    aspect-ratio: 3 / 4;
    border-radius: var(--radius-card);
    overflow: hidden;
    background-color: var(--color-secondary-bg);
}

.detail-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.detail-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.detail-shop-link {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-primary);
}

.detail-shop-link:hover {
    text-decoration: underline;
}

.detail-name {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-snug);
}

.detail-price-row {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border);
}

.detail-price {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
}

.detail-price-original {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    text-decoration: line-through;
}

.detail-price-sale {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--color-sale);
}

.detail-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-md);
}

.detail-meta-label {
    color: var(--color-text-muted);
    font-weight: var(--font-medium);
    min-width: 60px;
}

/* --- Quantity Control --- */
.detail-quantity {
    margin-top: var(--space-2);
}

.quantity-control {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-btn);
    margin-top: var(--space-15);
}

.qty-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-text-muted);
    background: transparent;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.qty-btn:hover {
    background-color: var(--color-secondary-bg);
}

.qty-input {
    width: 48px;
    height: 36px;
    text-align: center;
    border: none;
    border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    font-size: var(--text-md);
    font-weight: var(--font-semibold);
    outline: none;
    background: transparent;
    color: var(--color-text);
    -moz-appearance: textfield;
}

.qty-input::-webkit-inner-spin-button,
.qty-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
}

/* --- Add to Cart --- */
.detail-cart-form {
    margin-top: auto;
    padding-top: var(--space-4);
}

.detail-add-cart {
    margin-top: var(--space-3);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-base);
    border-radius: var(--radius-card);
}

/* Social proof & earn points */
.detail-social-proof {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-2);
    margin-bottom: var(--space-1);
}
.detail-proof-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}
.detail-earn-points {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-primary);
    font-weight: var(--font-medium);
}

/* --- Description --- */
.detail-description {
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}

.detail-section-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-4);
}

.detail-desc-content {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--color-text);
}

/* --- Related --- */
.detail-related {
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}

/* ==============================================
   Reviews & Q&A Tabs
   ============================================== */

/* --- Tab Header --- */
.detail-tabs {
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}

.tabs-header {
    display: flex;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: var(--space-6);
}

.tab-btn {
    flex: 1;
    padding: var(--space-35) var(--space-4);
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    color: var(--color-text-muted);
    background: transparent;
    cursor: pointer;
    position: relative;
    transition: color var(--transition-fast);
    text-align: center;
}

.tab-btn:hover {
    color: var(--color-text);
}

.tab-btn.active {
    color: var(--color-primary);
    font-weight: var(--font-semibold);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-primary);
}

/* --- Tab Panel --- */
.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

/* --- Flash Messages in tabs --- */
.tab-flash {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-btn);
    font-size: var(--text-md);
    margin-bottom: var(--space-4);
}

.tab-flash-success {
    background-color: var(--badge-active-bg);
    color: var(--badge-active-text);
    border: 1px solid hsl(var(--green-200));
}

.tab-flash-error {
    background-color: var(--badge-error-bg);
    color: var(--badge-error-text);
    border: 1px solid hsl(var(--red-200));
}

/* --- Empty state --- */
.tab-empty {
    text-align: center;
    padding: var(--space-12) var(--space-4);
    color: var(--color-text-muted);
}

.tab-empty p {
    font-size: var(--text-base);
    margin-bottom: var(--space-1);
}

.tab-empty-sub {
    font-size: var(--text-sm);
    opacity: 0.7;
}

/* --- Login prompt --- */
.tab-login-prompt {
    text-align: center;
    padding: var(--space-5);
    margin-top: var(--space-6);
    background-color: var(--color-secondary-bg);
    border-radius: var(--radius-card);
    font-size: var(--text-md);
    color: var(--color-text-muted);
}

.tab-login-prompt a {
    color: var(--color-primary);
    font-weight: var(--font-semibold);
    text-decoration: underline;
}

/* ==============================================
   Star Rating
   ============================================== */
.star-rating {
    display: inline-flex;
    align-items: center;
    gap: 1px;
}

.star-rating-sm .star-icon {
    width: 14px;
    height: 14px;
}

.star-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.star-filled {
    color: var(--color-star-filled);
}

.star-empty {
    color: var(--color-star-empty);
}

.star-half {
    color: var(--color-star-filled);
}

/* --- Star Selector (form) --- */
.star-selector {
    display: inline-flex;
    align-items: center;
    gap: 2px;
}

.star-label {
    cursor: pointer;
    display: inline-flex;
}

.star-radio {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.star-selectable {
    width: 28px;
    height: 28px;
    color: var(--color-star-empty);
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.star-selectable:hover {
    transform: scale(1.15);
}

.star-selectable.star-active {
    color: var(--color-star-filled);
}

/* ==============================================
   Review List
   ============================================== */
.review-summary {
    padding: var(--space-5);
    background-color: var(--color-secondary-bg);
    border-radius: var(--radius-card);
    margin-bottom: var(--space-6);
}

.review-summary-rating {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.review-summary-score {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--color-text);
    line-height: var(--leading-none);
}

.review-summary-count {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.review-list {
    display: flex;
    flex-direction: column;
}

.review-item {
    padding: var(--space-5) 0;
    border-bottom: 1px solid var(--color-border);
}

.review-item:first-child {
    padding-top: 0;
}

.review-item:last-child {
    border-bottom: none;
}

.review-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-2);
    flex-wrap: wrap;
    gap: var(--space-2);
}

.review-item-left {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.review-author {
    font-size: var(--text-md);
    font-weight: var(--font-semibold);
    color: var(--color-text);
}

.review-date {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.review-content {
    font-size: var(--text-md);
    line-height: var(--leading-relaxed);
    color: var(--color-text);
}

.review-delete-form {
    flex-shrink: 0;
}

/* --- Review Images --- */
.review-images {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
    flex-wrap: wrap;
}

.review-image-thumb {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-btn);
    overflow: hidden;
    cursor: pointer;
    border: 1px solid var(--color-border);
    transition: opacity var(--transition-fast);
}

.review-image-thumb:hover {
    opacity: 0.8;
}

.review-image-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* --- Review Form --- */
.review-form-wrap,
.qna-form-wrap {
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

.review-form-title,
.qna-form-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-4);
}

.review-form,
.qna-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.review-form .btn-primary,
.qna-form .btn-primary {
    align-self: flex-start;
}

.form-file-input {
    padding: var(--space-15);
    font-size: var(--text-sm);
}

.form-file-input::file-selector-button {
    padding: var(--space-15) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-btn);
    background-color: var(--color-secondary-bg);
    color: var(--color-text);
    font-size: var(--text-sm);
    cursor: pointer;
    margin-right: var(--space-2);
    transition: background-color var(--transition-fast);
}

.form-file-input::file-selector-button:hover {
    background-color: var(--color-border);
}

/* ==============================================
   Q&A List
   ============================================== */
.qna-list {
    display: flex;
    flex-direction: column;
}

.qna-item {
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-border);
}

.qna-item:first-child {
    padding-top: 0;
}

.qna-item:last-child {
    border-bottom: none;
}

.qna-question {
    margin-bottom: var(--space-2);
}

.qna-question-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    flex-wrap: wrap;
}

.qna-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    flex-shrink: 0;
}

.qna-badge-q {
    background-color: var(--color-primary);
    color: hsl(var(--primary-foreground));
}

.qna-badge-a {
    background-color: var(--color-success);
    color: var(--color-on-dark);
}

.qna-badge-waiting {
    background-color: var(--color-border);
    color: var(--color-text-muted);
}

.qna-secret-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.qna-author {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text);
}

.qna-date {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.qna-question-content {
    font-size: var(--text-md);
    line-height: var(--leading-normal);
    color: var(--color-text);
    padding-left: var(--space-8);
}

.qna-secret-text {
    color: var(--color-text-muted);
    font-style: italic;
}

.qna-answer {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
    padding: var(--space-35);
    background-color: var(--color-secondary-bg);
    border-radius: var(--radius-btn);
}

.qna-answer-content {
    font-size: var(--text-md);
    line-height: var(--leading-normal);
    color: var(--color-text);
    flex: 1;
}

.qna-answer-date {
    display: block;
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-top: var(--space-15);
}

.qna-answer-waiting {
    align-items: center;
}

.qna-waiting-text {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* --- Q&A Form --- */
.form-group-inline {
    flex-direction: row;
    align-items: center;
}

.checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-md);
    color: var(--color-text);
    cursor: pointer;
}

.checkbox-input {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

/* ==============================================
   Image Lightbox
   ============================================== */
.lightbox-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.85);
    z-index: var(--z-drawer);
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.lightbox-overlay.active {
    display: flex;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    border-radius: var(--radius-card);
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: -2.5rem;
    right: 0;
    font-size: 2rem;
    color: var(--color-on-dark);
    background: transparent;
    cursor: pointer;
    line-height: var(--leading-none);
    padding: var(--space-1);
    transition: opacity var(--transition-fast);
}

.lightbox-close:hover {
    opacity: 0.7;
}

/* ==============================================
   Responsive (Mobile 375px+)
   ============================================== */
@media (max-width: 767px) {
    .review-summary-rating {
        flex-wrap: wrap;
    }

    .review-summary-score {
        font-size: var(--text-3xl);
    }

    .review-image-thumb {
        width: 64px;
        height: 64px;
    }

    .star-selectable {
        width: 32px;
        height: 32px;
    }

    .qna-question-content {
        padding-left: 0;
        margin-top: var(--space-15);
    }
}