/* ===== 홈 reading 섹션 ===== */
.reading-section {
    margin-bottom: 2rem;
}

.book-strip {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    padding: 8px 4px 12px;
    scrollbar-width: thin;
    scrollbar-color: var(--window-border) transparent;
}

.book-strip::-webkit-scrollbar {
    height: 4px;
}

.book-strip::-webkit-scrollbar-track {
    background: transparent;
}

.book-strip::-webkit-scrollbar-thumb {
    background: var(--window-border);
}

.book-strip-item {
    flex: 0 0 auto;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.book-strip-cover {
    width: 80px;
    height: 112px;
    object-fit: cover;
    border: 2px solid var(--window-border);
    border-top-color: var(--white);
    border-left-color: var(--white);
    border-right-color: var(--window-border);
    border-bottom-color: var(--window-border);
    display: block;
    transition: all 0.15s ease;
    background: var(--bg-secondary);
}

.book-strip-item:hover .book-strip-cover {
    border-top-color: var(--window-border);
    border-left-color: var(--window-border);
    border-right-color: var(--white);
    border-bottom-color: var(--white);
}

.book-strip-item.is-reading .book-strip-cover {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

.book-strip-label {
    font-size: 9px;
    color: var(--text-muted);
    text-align: center;
    max-width: 80px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.book-strip-item.is-reading .book-strip-label {
    color: var(--accent-primary);
    font-weight: bold;
}


/* ===== reading 전용 페이지 ===== */
.reading-page {
    padding: 0;
}

.reading-group {
    margin-bottom: 2.5rem;
}

.reading-group-title {
    font-size: 10px;
    font-weight: bold;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--window-border);
}

.book-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem;
}

/* 책 카드 */
.book-card {
    width: 120px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.book-cover-wrap {
    position: relative;
    width: 120px;
    height: 168px;
}

.book-cover {
    width: 120px;
    height: 168px;
    object-fit: cover;
    border: 2px solid var(--window-border);
    border-top-color: var(--white);
    border-left-color: var(--white);
    border-right-color: var(--window-border);
    border-bottom-color: var(--window-border);
    display: block;
    transition: all 0.15s ease;
    background: var(--bg-secondary);
}

.book-card:hover .book-cover,
.book-card.active .book-cover {
    border-top-color: var(--window-border);
    border-left-color: var(--window-border);
    border-right-color: var(--white);
    border-bottom-color: var(--white);
}

.book-status-badge {
    position: absolute;
    top: 6px;
    right: 6px;
    font-size: 8px;
    font-weight: bold;
    text-transform: uppercase;
    padding: 2px 5px;
    border: 1px solid var(--window-border);
    background: var(--accent-primary);
    color: var(--bg-window);
    letter-spacing: 0.5px;
}

.book-info {
    text-align: center;
    width: 100%;
}

.book-title {
    font-size: 11px;
    font-weight: bold;
    color: var(--text-primary);
    line-height: 1.4;
    word-break: keep-all;
}

.book-author {
    font-size: 9px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* 포스트 패널 */
.book-posts-panel {
    display: none;
    width: 100%;
    margin-top: 0.5rem;
    border: 1px solid var(--window-border);
    border-top-color: var(--white);
    border-left-color: var(--white);
    background: var(--bg-card);
    padding: 12px;
}

.book-posts-panel.open {
    display: block;
}

.book-posts-panel-header {
    font-size: 11px;
    font-weight: bold;
    color: var(--text-primary);
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-close-btn {
    cursor: pointer;
    font-size: 10px;
    color: var(--text-muted);
    background: none;
    border: none;
    padding: 0;
    font-family: inherit;
}

.panel-close-btn:hover {
    color: var(--text-primary);
}

.book-post-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.book-post-list li a {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 8px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 11px;
    padding: 4px 6px;
    border: 1px solid transparent;
    transition: all 0.1s ease;
}

.book-post-list li a:hover {
    background: var(--accent-light);
    border-color: var(--window-border);
}

.book-post-list li a .post-title-text {
    flex: 1;
    line-height: 1.4;
}

.book-post-list li a .post-date-text {
    font-size: 9px;
    color: var(--text-muted);
    white-space: nowrap;
}

.no-posts-msg {
    font-size: 11px;
    color: var(--text-muted);
    text-align: center;
    padding: 1rem 0;
}

/* 패널 행 — 책 그리드와 같은 레벨에서 full width */
.book-row-container {
    width: 100%;
}

@media (max-width: 768px) {
    .book-grid {
        gap: 1rem;
    }
    .book-card {
        width: 90px;
    }
    .book-cover-wrap,
    .book-cover {
        width: 90px;
        height: 126px;
    }
}