/* ============================================
   ICSD Books — Archive, Single, Homepage Grid
   ============================================ */

/* ============================================
   BOOKS HOME / ARCHIVE GRID
   ============================================ */
.icsd-books-home-section {
    background: linear-gradient(180deg, transparent, rgba(var(--icsd-primary-rgb), 0.03) 50%, transparent);
}

.icsd-books-home-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: 20px;
    justify-content: start;
}

.icsd-book-home-card {
    background: var(--icsd-surface);
    border: 1px solid var(--icsd-border);
    border-radius: 16px;
    overflow: hidden;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}
.icsd-book-home-card:hover {
    transform: translateY(-6px);
    border-color: var(--icsd-primary);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
}
.icsd-book-home-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--icsd-primary), var(--icsd-primary-light));
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 2;
}
.icsd-book-home-card:hover::before {
    transform: scaleX(1);
}

.icsd-book-home-cover {
    position: relative;
    aspect-ratio: 2/3;
    overflow: hidden;
    background: linear-gradient(135deg, var(--icsd-primary-soft), var(--icsd-bg-alt));
}
.icsd-book-home-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), filter 0.5s ease;
    display: block;
    filter: grayscale(100%);
}
.icsd-book-home-card:hover .icsd-book-home-cover img {
    transform: scale(1.06);
    filter: grayscale(0%);
}
.icsd-book-home-cover-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    opacity: 0.5;
}
.icsd-book-home-type {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(10, 14, 23, 0.85);
    color: var(--icsd-primary);
    font-family: 'JetBrains Mono', 'Vazirmatn', monospace;
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 100px;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.icsd-book-home-body {
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}
.icsd-book-home-title {
    margin: 0;
    font-size: 17px;
    font-weight: 700;
    color: var(--icsd-text);
    line-height: 1.4;
    transition: color 0.2s;
    min-height: 47px;
}
.icsd-book-home-card:hover .icsd-book-home-title {
    color: var(--icsd-primary);
}
.icsd-book-home-author {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--icsd-primary);
    font-size: 12px;
    font-weight: 500;
}
.icsd-book-home-author svg {
    flex-shrink: 0;
}
.icsd-book-home-desc {
    color: var(--icsd-text-muted);
    font-size: 13px;
    line-height: 1.7;
    margin: 0;
    flex: 1;
}
.icsd-book-home-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}
.icsd-book-home-meta .meta-item {
    font-family: 'JetBrains Mono', 'Vazirmatn', monospace;
    font-size: 11px;
    color: var(--icsd-text-muted);
    background: var(--icsd-surface-2);
    padding: 3px 9px;
    border-radius: 100px;
    border: 1px solid var(--icsd-border);
}
.icsd-book-home-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--icsd-border);
}
.icsd-book-home-footer .badge-free {
    background: linear-gradient(135deg, #2CA180, #5DCAA5);
    color: #fff;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
}
.icsd-book-home-footer .badge-price {
    background: var(--icsd-primary-soft);
    color: var(--icsd-primary);
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    font-family: 'JetBrains Mono', 'Vazirmatn', monospace;
    border: 1px solid var(--icsd-primary-border);
}
.icsd-book-home-footer .go {
    color: var(--icsd-primary);
    font-family: 'JetBrains Mono', 'Vazirmatn', monospace;
    font-size: 11px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.3s;
}
.icsd-book-home-card:hover .icsd-book-home-footer .go {
    gap: 8px;
}

@media (max-width: 991px) {
    .icsd-books-home-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
}
@media (max-width: 575px) {
    .icsd-books-home-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 14px;
    }
}


/* ============================================
   SINGLE BOOK PAGE
   ============================================ */
.icsd-book-page {
    padding: 0 0 80px;
    position: relative;
    z-index: 2;
    --book-color: var(--icsd-primary);
}

.icsd-book-breadcrumb {
    padding: 24px 0 20px;
    color: var(--icsd-text-muted);
    font-size: 13px;
    font-family: 'JetBrains Mono', 'Vazirmatn', monospace;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}
.icsd-book-breadcrumb a {
    color: var(--icsd-text-muted);
    text-decoration: none;
    transition: color 0.2s;
}
.icsd-book-breadcrumb a:hover {
    color: var(--book-color);
}
.icsd-book-breadcrumb .sep {
    color: var(--icsd-border);
}
.icsd-book-breadcrumb .current {
    color: var(--icsd-text);
    font-weight: 500;
}

.icsd-book-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 36px;
    align-items: start;
}

/* Sidebar */
.icsd-book-sidebar {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.icsd-book-cover-wrap {
    position: relative;
}
.icsd-book-cover {
    aspect-ratio: 2/3;
    border-radius: 16px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--icsd-primary-soft), var(--icsd-bg-alt));
    border: 1px solid var(--icsd-border);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.18);
}
.icsd-book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.icsd-book-cover--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 100px;
    opacity: 0.5;
}
.icsd-book-type-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(10, 14, 23, 0.85);
    color: var(--book-color);
    font-family: 'JetBrains Mono', 'Vazirmatn', monospace;
    font-size: 11px;
    padding: 5px 14px;
    border-radius: 100px;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Action Buttons */
.icsd-book-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.icsd-book-action-btn {
    flex-direction: column;
    padding: 14px 16px !important;
    align-items: center !important;
    line-height: 1.4;
    text-align: center;
    gap: 4px !important;
}
.icsd-book-action-btn .btn-main {
    font-size: 14px;
    font-weight: 700;
}
.icsd-book-action-btn .btn-sub {
    font-size: 11px;
    opacity: 0.85;
    font-family: 'JetBrains Mono', 'Vazirmatn', monospace;
}

/* Info Card */
.icsd-book-info-card {
    background: var(--icsd-surface);
    border: 1px solid var(--icsd-border);
    border-radius: 12px;
    padding: 18px 20px;
}
.icsd-book-info-card h4 {
    margin: 0 0 12px;
    font-size: 13px;
    color: var(--book-color);
    font-family: 'JetBrains Mono', 'Vazirmatn', monospace;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--icsd-border);
}
.icsd-book-info-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.icsd-book-info-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    gap: 12px;
}
.icsd-book-info-list .lbl {
    color: var(--icsd-text-muted);
    flex-shrink: 0;
}
.icsd-book-info-list .val {
    color: var(--icsd-text);
    font-weight: 600;
    text-align: left;
}
.icsd-book-info-list .val.isbn {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
}

/* Main Content */
.icsd-book-content {
    min-width: 0;
}
.icsd-book-header {
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--icsd-border);
}
.icsd-book-meta-top {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}
.icsd-book-category,
.icsd-book-type-tag {
    background: var(--icsd-primary-soft);
    color: var(--book-color);
    border: 1px solid var(--icsd-primary-border);
    padding: 4px 12px;
    border-radius: 100px;
    font-family: 'JetBrains Mono', 'Vazirmatn', monospace;
    font-size: 11px;
}
.icsd-book-title {
    font-family: 'Vazirmatn', sans-serif;
    font-size: 32px;
    font-weight: 800;
    margin: 0 0 12px;
    color: var(--icsd-text);
    line-height: 1.3;
}
.icsd-book-author-line {
    color: var(--icsd-text-muted);
    font-size: 14px;
    margin-bottom: 14px;
}
.icsd-book-author-line strong {
    color: var(--book-color);
}
.icsd-book-excerpt {
    color: var(--icsd-text-muted);
    font-size: 15px;
    line-height: 1.85;
    margin: 0;
}

.icsd-book-description {
    margin-bottom: 36px;
}
.icsd-book-section-title {
    font-family: 'Vazirmatn', sans-serif;
    font-size: 22px;
    font-weight: 800;
    margin: 0 0 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--icsd-text);
}
.icsd-book-section-title .title-hash {
    color: var(--book-color);
    font-family: 'JetBrains Mono', 'Vazirmatn', monospace;
}
.icsd-book-content-body {
    color: var(--icsd-text-2);
    font-size: 15px;
    line-height: 1.95;
}
.icsd-book-content-body h2 { font-size: 24px; margin: 28px 0 12px; color: var(--icsd-text); }
.icsd-book-content-body h3 { font-size: 19px; margin: 22px 0 10px; color: var(--icsd-text); }
.icsd-book-content-body p { margin: 0 0 16px; }
.icsd-book-content-body ul,
.icsd-book-content-body ol { margin: 0 0 18px; padding-right: 24px; }
.icsd-book-content-body li { margin-bottom: 8px; }
.icsd-book-content-body strong { color: var(--icsd-text); }

/* Bottom CTA */
.icsd-book-bottom-cta {
    background: linear-gradient(135deg, var(--icsd-primary-soft), transparent);
    border: 1px solid var(--icsd-primary-border);
    border-radius: 16px;
    padding: 32px 28px;
    text-align: center;
}
.icsd-book-bottom-cta h3 {
    margin: 0 0 16px;
    font-size: 20px;
    color: var(--icsd-text);
}
.icsd-book-bottom-cta .cta-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 991px) {
    .icsd-book-layout {
        grid-template-columns: 1fr;
    }
    .icsd-book-sidebar {
        position: static;
        max-width: 360px;
        margin: 0 auto;
    }
}
@media (max-width: 575px) {
    .icsd-book-title {
        font-size: 24px;
    }
    .icsd-book-section-title {
        font-size: 18px;
    }
}