/* ============== PUBLICATION COMMON ============== */
.pub-page { padding:72px 0 96px; }
.pub-toolbar {
    display:flex; justify-content:space-between; align-items:center;
    margin-bottom:32px; flex-wrap:wrap; gap:16px;
    padding-bottom:20px;
    border-bottom:1px solid var(--c-line);
}
.pub-filters { display:flex; gap:6px; flex-wrap:wrap; }
.pub-filter {
    padding:8px 18px;
    background:transparent;
    border:1px solid var(--c-line);
    font-size:15px;
    color:var(--c-text-soft);
    transition:all .2s;
}
.pub-filter.active, .pub-filter:hover {
    background:var(--c-primary);
    border-color:var(--c-primary);
    color:var(--c-white);
}
.pub-sort {
    display:flex; align-items:center; gap:12px;
}
.pub-sort .count {
    font-size:15px;
    color:var(--c-text-soft);
}
.pub-sort .count strong { color:var(--c-accent); font-family:var(--serif); }
.pub-sort select {
    padding:8px 14px;
    border:1px solid var(--c-line);
    background:var(--c-white);
    font-size:15px;
    color:var(--c-text);
    cursor:pointer;
}

/* Catalog Grid */
.catalog-grid {
    display:grid;
    grid-template-columns:repeat(4, 1fr);
    gap:48px 32px;
}
.catalog-grid .book-card { display:block; }

/* Featured */
.featured-section {
    margin-bottom:72px;
    padding:48px;
    background:var(--c-white);
    border:1px solid var(--c-line);
    display:grid;
    grid-template-columns:1fr 1.4fr;
    gap:48px;
    align-items:center;
}
.featured-cover {
    position:relative;
    aspect-ratio:3/4;
    box-shadow:var(--shadow-lg);
    overflow:hidden;
}
.featured-cover .book-cover-art .center h4 { font-size:32px; }
.featured-tag {
    display:inline-block;
    padding:6px 14px;
    background:var(--c-accent);
    color:var(--c-primary-dk);
    font-size:11px; font-weight:700;
    letter-spacing:.2em;
    margin-bottom:20px;
}
.featured-info h2 {
    font-family:var(--serif);
    font-size:36px;
    color:var(--c-primary);
    line-height:1.3;
    letter-spacing:-.02em;
    margin-bottom:14px;
}
.featured-info .author {
    font-size:14px;
    color:var(--c-text-soft);
    margin-bottom:20px;
    padding-bottom:20px;
    border-bottom:1px solid var(--c-line);
}
.featured-info .author span { color:var(--c-text-light); margin:0 8px; }
.featured-info .desc {
    font-size:15px;
    line-height:1.85;
    color:var(--c-text-soft);
    margin-bottom:28px;
}
.featured-meta {
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:16px;
    margin-bottom:32px;
    padding:20px 0;
    border-top:1px solid var(--c-line);
    border-bottom:1px solid var(--c-line);
}
.featured-meta dt {
    font-size:11px;
    color:var(--c-text-light);
    letter-spacing:.1em;
    margin-bottom:4px;
}
.featured-meta dd {
    font-family:var(--serif);
    font-size:15px;
    color:var(--c-primary);
    font-weight:600;
}
.featured-price {
    display:flex; align-items:baseline; gap:14px;
    margin-bottom:24px;
}
.featured-price .now {
    font-family:var(--serif);
    font-size:32px;
    font-weight:700;
    color:var(--c-primary);
}
.featured-price .was {
    font-size:15px;
    color:var(--c-text-light);
    text-decoration:line-through;
}
.featured-price .save {
    font-size:12px;
    color:var(--c-danger);
    font-weight:700;
}
.featured-actions { display:flex; gap:12px; }

/* Pagination */
.pagination {
    margin-top:64px;
    display:flex; justify-content:center; gap:6px;
}
.pagination a, .pagination span {
    width:40px; height:40px;
    display:flex; align-items:center; justify-content:center;
    border:1px solid var(--c-line);
    font-size:14px;
    color:var(--c-text-soft);
    transition:all .2s;
    font-family:var(--serif);
}
.pagination a:hover, .pagination .current {
    background:var(--c-primary);
    border-color:var(--c-primary);
    color:var(--c-white);
}

/* ============== PUBLICATION DETAIL ============== */
.detail-wrap {
    display:grid;
    grid-template-columns:1fr 1.3fr;
    gap:64px;
    margin-bottom:80px;
}
.detail-cover-wrap {
    position:sticky; top:120px;
    align-self:start;
}
.detail-cover {
    aspect-ratio:3/4;
    box-shadow:var(--shadow-lg);
    margin-bottom:24px;
}
.detail-cover .book-cover-art .center h4 { font-size:36px; }
.detail-thumbs {
    display:grid;
    grid-template-columns:repeat(4, 1fr);
    gap:8px;
}
.detail-thumb {
    aspect-ratio:1;
    background:var(--c-bg-soft);
    border:1px solid var(--c-line);
    cursor:pointer;
    transition:border-color .2s;
}
.detail-thumb.active, .detail-thumb:hover { border-color:var(--c-accent); }

.detail-info .cat {
    font-size:12px;
    letter-spacing:.2em;
    color:var(--c-accent);
    font-weight:600;
    margin-bottom:16px;
}
.detail-info h1 {
    font-family:var(--serif);
    font-size:38px;
    font-weight:700;
    color:var(--c-primary);
    line-height:1.3;
    letter-spacing:-.02em;
    margin-bottom:14px;
}
.detail-info .sub-title {
    font-family:var(--serif);
    font-size:18px;
    color:var(--c-text-soft);
    margin-bottom:24px;
    font-weight:500;
    letter-spacing:.02em;
}
.detail-meta {
    display:flex; gap:24px; flex-wrap:wrap;
    padding:20px 0;
    border-top:1px solid var(--c-line);
    border-bottom:1px solid var(--c-line);
    margin-bottom:32px;
    font-size:15px;
}
.detail-meta div span { color:var(--c-text-light); margin-right:8px; }
.detail-meta div strong { color:var(--c-text); font-weight:600; }
.rating { display:flex; align-items:center; gap:8px; }
.rating .stars { color:var(--c-accent); letter-spacing:2px; }
.rating .review { font-size:15px; color:var(--c-text-soft); }

.detail-price-box {
    background:var(--c-bg-soft);
    padding:28px;
    margin-bottom:32px;
    border-left:3px solid var(--c-accent);
}
.detail-price-box .price-row {
    display:flex; align-items:baseline; gap:14px; margin-bottom:6px;
}
.detail-price-box .now {
    font-family:var(--serif);
    font-size:36px;
    font-weight:700;
    color:var(--c-primary);
}
.detail-price-box .was {
    font-size:16px;
    color:var(--c-text-light);
    text-decoration:line-through;
}
.detail-price-box .discount {
    background:var(--c-danger);
    color:var(--c-white);
    padding:2px 8px;
    font-size:12px;
    font-weight:700;
}
.detail-price-box .now small { font-size:18px; font-weight:600; margin-left:2px; }
.detail-price-box .tag {
    font-size:13px; font-weight:700; color:var(--c-accent);
    border:1px solid var(--c-accent); padding:3px 9px; border-radius:3px;
}
.detail-price-box .save {
    font-size:14px; color:var(--c-danger); font-weight:600; margin-top:4px;
}
.detail-price-box .save strong { font-weight:800; }
.detail-price-box .ship {
    font-size:15px;
    color:var(--c-text-soft);
    margin-top:8px;
}
.detail-price-box .ship strong { color:var(--c-primary); }

/* 카탈로그 카드 할인 표기 */
.pub-card-price del { color:var(--c-text-light); font-size:.74em; font-weight:500; margin-right:2px; }
.pub-card-price .rate { font-style:normal; color:var(--c-danger); font-weight:800; font-size:.82em; margin-right:3px; }

/* 북 트레일러 */
.trailer-list { display:flex; flex-direction:column; gap:30px; }
.trailer-item { margin:0; }
.trailer-embed {
    position:relative; width:100%; padding-top:56.25%;
    background:#000; border-radius:8px; overflow:hidden;
    box-shadow:var(--shadow-md);
}
.trailer-embed iframe { position:absolute; inset:0; width:100%; height:100%; border:0; }
.trailer-title {
    margin:14px 2px 0; font-size:15px; font-weight:600;
    color:var(--c-text); line-height:1.6; word-break:keep-all;
}
.trailer-item--empty .trailer-search {
    display:flex; align-items:center; gap:16px;
    padding:20px 22px; text-decoration:none;
    background:var(--c-bg-soft); border:1px solid var(--c-line);
    border-radius:8px; transition:border-color .2s, transform .2s;
}
.trailer-item--empty .trailer-search:hover { border-color:var(--c-accent); transform:translateY(-2px); }
.trailer-play {
    flex-shrink:0; width:46px; height:46px; border-radius:50%;
    background:#ff0000; color:#fff; font-size:15px;
    display:flex; align-items:center; justify-content:center; padding-left:3px;
}
.trailer-stxt { display:flex; flex-direction:column; gap:4px; }
.trailer-stxt b { font-size:14.5px; font-weight:600; color:var(--c-text); line-height:1.55; word-break:keep-all; }
.trailer-stxt em { font-style:normal; font-size:13px; color:var(--c-accent); font-weight:700; }
@media (max-width:600px) {
    .trailer-list { gap:24px; }
    .trailer-title { font-size:14px; }
}

.detail-options {
    margin-bottom:24px;
}
.detail-options h4 {
    font-size:15px;
    color:var(--c-text);
    margin-bottom:12px;
    font-weight:600;
}
.qty-control {
    display:flex; align-items:center;
    border:1px solid var(--c-line);
    width:fit-content;
}
.qty-control button {
    width:38px; height:38px;
    background:var(--c-white);
    font-size:16px; color:var(--c-text);
    transition:background .2s;
}
.qty-control button:hover { background:var(--c-bg-soft); }
.qty-control input {
    width:60px; height:38px;
    text-align:center;
    border:none;
    border-left:1px solid var(--c-line);
    border-right:1px solid var(--c-line);
    font-family:var(--serif);
    font-size:15px;
    background:var(--c-white);
}

.total-row {
    display:flex; justify-content:space-between; align-items:center;
    padding:20px 0;
    border-top:1px solid var(--c-line);
    margin-bottom:24px;
}
.total-row .lbl { font-size:14px; color:var(--c-text-soft); }
.total-row .total {
    font-family:var(--serif);
    font-size:32px;
    font-weight:700;
    color:var(--c-accent);
}
.total-row .total small { font-size:14px; }

.detail-actions { display:flex; gap:8px; }
.detail-actions .btn { flex:1; padding:18px; font-size:15px; }

/* Tabs */
.detail-tabs {
    border-top:2px solid var(--c-primary);
    margin-bottom:80px;
}
.tab-nav {
    display:flex;
    border-bottom:1px solid var(--c-line);
    margin-bottom:48px;
    overflow-x:auto;
}
.tab-nav button {
    padding:18px 32px;
    font-size:14px;
    font-weight:600;
    color:var(--c-text-soft);
    border-bottom:2px solid transparent;
    margin-bottom:-1px;
    flex-shrink:0;
    transition:all .25s;
}
.tab-nav button.active {
    color:var(--c-primary);
    border-bottom-color:var(--c-primary);
}
.tab-panel { display:none; }
.tab-panel.active { display:block; }
.tab-panel h3 {
    font-family:var(--serif);
    font-size:24px;
    color:var(--c-primary);
    margin-bottom:24px;
    padding-bottom:14px;
    border-bottom:1px solid var(--c-line);
}
.tab-panel .lead {
    font-size:17px;
    line-height:1.85;
    color:var(--c-text);
    margin-bottom:24px;
    font-family:var(--serif);
    font-weight:600;
    padding-left:20px;
    border-left:3px solid var(--c-accent);
}
.tab-panel p {
    font-size:15px;
    line-height:1.95;
    color:var(--c-text-soft);
    margin-bottom:18px;
}
.tab-panel h4 {
    font-family:var(--serif);
    font-size:18px;
    color:var(--c-primary);
    margin:32px 0 14px;
}
.tab-panel ul {
    margin-bottom:24px;
    list-style:none;
}
.tab-panel ul li {
    padding-left:24px;
    position:relative;
    margin-bottom:10px;
    color:var(--c-text-soft);
    line-height:1.7;
}
.tab-panel ul li::before {
    content:'—'; position:absolute;
    left:0; color:var(--c-accent);
}
.specs-table {
    width:100%;
    border-collapse:collapse;
}
.specs-table th, .specs-table td {
    padding:14px 18px;
    text-align:left;
    border-bottom:1px solid var(--c-line);
    font-size:14px;
}
.specs-table th {
    background:var(--c-bg-soft);
    color:var(--c-primary);
    font-weight:600;
    width:160px;
    font-family:var(--serif);
}
.specs-table td { color:var(--c-text-soft); }

/* Related */
.related-section h2 {
    font-family:var(--serif);
    font-size:28px;
    color:var(--c-primary);
    margin-bottom:32px;
    text-align:center;
}
.related-grid {
    display:grid;
    grid-template-columns:repeat(4, 1fr);
    gap:24px;
}

/* ============== CART ============== */
.cart-page { padding:72px 0 96px; }
.cart-steps {
    display:flex; justify-content:center; gap:0;
    margin-bottom:56px;
}
.cart-step {
    display:flex; align-items:center; gap:14px;
    padding:0 32px;
    position:relative;
    color:var(--c-text-light);
}
.cart-step:not(:last-child)::after {
    content:''; position:absolute;
    right:0; top:50%; transform:translateY(-50%);
    width:32px; height:1px;
    background:var(--c-line);
    margin-right:-16px;
}
.cart-step.active { color:var(--c-primary); }
.cart-step .num {
    width:32px; height:32px;
    border:1px solid currentColor;
    border-radius:50%;
    display:flex; align-items:center; justify-content:center;
    font-family:var(--serif);
    font-size:14px;
}
.cart-step.active .num {
    background:var(--c-primary); color:var(--c-white);
    border-color:var(--c-primary);
}
.cart-step .lbl { font-size:15px; font-weight:600; letter-spacing:.05em; }

.cart-layout {
    display:grid;
    grid-template-columns:1fr 360px;
    gap:32px;
    align-items:start;
}
.cart-table {
    background:var(--c-white);
    border:1px solid var(--c-line);
}
.cart-thead {
    display:grid;
    grid-template-columns:60px 2fr 100px 130px 120px 60px;
    padding:16px 24px;
    background:var(--c-bg-soft);
    border-bottom:1px solid var(--c-line);
    font-size:12px;
    font-weight:600;
    color:var(--c-text-soft);
    letter-spacing:.05em;
    text-align:center;
}
.cart-thead .col-prod { text-align:left; }
.cart-row {
    display:grid;
    grid-template-columns:60px 2fr 100px 130px 120px 60px;
    padding:24px;
    border-bottom:1px solid var(--c-line);
    align-items:center;
    gap:16px;
}
.cart-row:last-child { border-bottom:none; }
.cart-row .check input { width:18px; height:18px; cursor:pointer; }
.cart-row .prod {
    display:flex; gap:18px; align-items:center;
}
.cart-row .prod-img {
    width:64px; height:84px;
    flex-shrink:0;
    box-shadow:var(--shadow-sm);
}
.cart-row .prod-info h4 {
    font-family:var(--serif);
    font-size:15px;
    color:var(--c-primary);
    margin-bottom:4px;
    line-height:1.4;
}
.cart-row .prod-info .author {
    font-size:12px;
    color:var(--c-text-light);
}
.cart-row .price, .cart-row .total-each {
    text-align:center;
    font-family:var(--serif);
    font-size:16px;
    color:var(--c-primary);
    font-weight:600;
}
.cart-row .total-each { color:var(--c-accent); }
.cart-row .qty-control { margin:0 auto; }
.cart-row .remove {
    text-align:center;
    color:var(--c-text-light);
    font-size:18px;
    transition:color .2s;
}
.cart-row .remove:hover { color:var(--c-danger); }

.cart-actions {
    display:flex; justify-content:space-between;
    margin-top:16px;
    padding:16px 24px;
    background:var(--c-bg-soft);
    border:1px solid var(--c-line);
    border-top:none;
}
.cart-actions button {
    font-size:15px;
    color:var(--c-text-soft);
    padding:6px 14px;
    border:1px solid var(--c-line);
    background:var(--c-white);
    transition:all .2s;
}
.cart-actions button:hover { background:var(--c-primary); color:var(--c-white); border-color:var(--c-primary); }

.cart-summary {
    background:var(--c-white);
    border:1px solid var(--c-line);
    padding:32px;
    position:sticky; top:120px;
}
.cart-summary h3 {
    font-family:var(--serif);
    font-size:20px;
    color:var(--c-primary);
    margin-bottom:24px;
    padding-bottom:14px;
    border-bottom:1px solid var(--c-line);
}
.summary-row {
    display:flex; justify-content:space-between;
    padding:10px 0;
    font-size:14px;
}
.summary-row .lbl { color:var(--c-text-soft); }
.summary-row .val { color:var(--c-text); font-weight:600; }
.summary-row.minus .val { color:var(--c-danger); }

.summary-total {
    display:flex; justify-content:space-between; align-items:baseline;
    padding:20px 0;
    border-top:2px solid var(--c-primary);
    border-bottom:1px solid var(--c-line);
    margin:12px 0 24px;
}
.summary-total .lbl {
    font-family:var(--serif);
    font-size:16px;
    color:var(--c-primary);
    font-weight:700;
}
.summary-total .val {
    font-family:var(--serif);
    font-size:28px;
    color:var(--c-accent);
    font-weight:700;
}
.summary-total .val small { font-size:14px; }

.coupon-row {
    display:flex; gap:8px;
    margin-bottom:24px;
}
.coupon-row input {
    flex:1;
    padding:12px;
    border:1px solid var(--c-line);
    font-size:15px;
}
.coupon-row button {
    padding:0 18px;
    background:var(--c-primary);
    color:var(--c-white);
    font-size:15px;
    font-weight:600;
}
.summary-notice {
    background:var(--c-bg-soft);
    padding:14px 16px;
    margin-top:20px;
    font-size:12px;
    color:var(--c-text-soft);
    line-height:1.7;
    border-left:2px solid var(--c-accent);
}

.cart-empty {
    padding:80px 20px;
    text-align:center;
    background:var(--c-bg-soft);
}
.cart-empty .icon {
    font-size:48px;
    color:var(--c-text-light);
    margin-bottom:16px;
}
.cart-empty h3 {
    font-family:var(--serif);
    font-size:22px;
    color:var(--c-primary);
    margin-bottom:8px;
}
.cart-empty p {
    color:var(--c-text-soft);
    margin-bottom:24px;
}

/* Toast */
.toast {
    position:fixed;
    top:120px; left:50%;
    transform:translateX(-50%) translateY(-20px);
    background:var(--c-primary);
    color:var(--c-white);
    padding:16px 28px;
    font-size:14px;
    box-shadow:var(--shadow-md);
    z-index:300;
    opacity:0; visibility:hidden;
    transition:all .3s var(--ease);
}
.toast.show { opacity:1; visibility:visible; transform:translateX(-50%) translateY(0); }
.toast.error { background:var(--c-danger); }

/* ============== RESPONSIVE ============== */
@media (max-width:1100px) {
    .catalog-grid { grid-template-columns:repeat(3, 1fr); }
    .related-grid { grid-template-columns:repeat(3, 1fr); }
}
@media (max-width:960px) {
    .catalog-grid { grid-template-columns:repeat(3, 1fr); gap:32px 16px; }
    .related-grid { grid-template-columns:repeat(2, 1fr); }

    .featured-section { grid-template-columns:1fr; padding:32px; gap:32px; }
    .featured-cover { max-width:300px; margin:0 auto; }
    .featured-info h2 { font-size:28px; }

    .detail-wrap { grid-template-columns:1fr; gap:40px; }
    .detail-cover-wrap { position:static; max-width:380px; margin:0 auto; }
    .detail-info h1 { font-size:28px; }

    .cart-layout { grid-template-columns:1fr; }
    .cart-summary { position:static; }
    .cart-thead { display:none; }
    .cart-row {
        grid-template-columns:auto 1fr;
        gap:12px 16px;
        padding:20px;
    }
    .cart-row .check { grid-row:span 2; align-self:start; padding-top:6px; }
    .cart-row .prod { grid-column:2; }
    .cart-row .price, .cart-row .qty-control-wrap, .cart-row .total-each, .cart-row .remove {
        grid-column:2;
        text-align:left;
        display:flex; justify-content:space-between; align-items:center;
        font-size:15px;
    }
    .cart-row .price::before { content:'정가'; color:var(--c-text-light); }
    .cart-row .qty-control-wrap::before { content:'수량'; color:var(--c-text-light); font-size:15px; }
    .cart-row .total-each::before { content:'합계'; color:var(--c-text-light); font-weight:400; }
    .cart-row .remove { justify-content:flex-end; }
}
@media (max-width:600px) {
    .catalog-grid { grid-template-columns:repeat(2, 1fr); gap:32px 14px; }
    .related-grid { grid-template-columns:repeat(2, 1fr); gap:16px; }

    .pub-toolbar { flex-direction:column; align-items:flex-start; }
    .pub-filters { width:100%; overflow-x:auto; flex-wrap:nowrap; }
    .pub-filter { flex-shrink:0; }

    .featured-info h2 { font-size:22px; }
    .featured-meta { grid-template-columns:1fr 1fr; gap:12px; }

    .detail-info h1 { font-size:24px; }
    .detail-meta { gap:12px 18px; }

    .tab-nav button { padding:14px 18px; font-size:15px; }

    .cart-steps { gap:0; }
    .cart-step { padding:0 12px; }
    .cart-step .lbl { display:none; }

    .cart-summary { padding:24px; }
    .summary-total .val { font-size:22px; }

    .pagination a, .pagination span { width:34px; height:34px; font-size:15px; }
}