/* ==============================================================
   UNIFIED COMPACT & ULTRA-RESPONSIVE MASTER DESIGN SYSTEM (2026)
   uchebnik-kniga-chitat.com
   ============================================================== */

:root {
    --bg-main: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #10b981;
    --accent-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --accent-blue: #3b82f6;
    --accent-blue-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --border-color: #334155;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 10px rgba(0,0,0,0.25);
    --shadow-lg: 0 8px 20px rgba(0,0,0,0.35);
}

[data-theme="light"] {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 3px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 18px rgba(0,0,0,0.1);
}

*, *::before, *::after {
    box-sizing: border-box !important;
}

html {
    scroll-behavior: smooth;
    max-width: 100%;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.45;
    max-width: 100%;
    overflow-x: hidden;
    transition: background-color 0.25s ease, color 0.25s ease;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1380px;
    margin: 0 auto;
    padding: 0 16px;
}

/* ==============================================================
   COMPACT NAVBAR & SEARCH
   ============================================================== */
.navbar {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
}

.navbar-top-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    max-width: 1380px;
    margin: 0 auto;
    gap: 14px;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-decoration: none;
    gap: 1px;
    flex-shrink: 0;
}

.logo-main-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.logo-icon {
    width: 26px;
    height: 26px;
    stroke: var(--accent);
}

.logo-brand-text {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.4px;
}

.logo-brand-text strong {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.site-tagline {
    font-size: 0.70rem;
    font-weight: 500;
    color: var(--text-secondary);
    max-width: 480px;
    line-height: 1.2;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    max-width: 650px;
    justify-content: flex-end;
}

.search-box {
    position: relative;
    width: 100%;
}

.search-box input {
    width: 100%;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 36px 8px 14px;
    border-radius: 20px;
    font-size: 0.88rem;
    outline: none;
    transition: all 0.2s ease;
}

.search-box input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.search-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    padding: 2px;
}

.search-results-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-height: 480px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
}

.search-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: var(--bg-main);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.search-item-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--text-primary);
    transition: background 0.15s ease;
}

.search-item-card:hover {
    background: var(--bg-card-hover);
}

.search-item-thumb {
    width: 36px;
    height: 48px;
    object-fit: cover;
    border-radius: 4px;
    flex-shrink: 0;
    border: 1px solid var(--border-color);
}

.search-item-info {
    flex: 1;
    min-width: 0;
}

.search-item-title {
    font-size: 0.85rem;
    font-weight: 600;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-item-meta {
    display: flex;
    gap: 6px;
    margin-top: 2px;
}

.theme-toggle {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.theme-toggle:hover {
    border-color: var(--accent);
    transform: scale(1.05);
}

.theme-sun { display: none; width: 18px; height: 18px; }
.theme-moon { display: block; width: 18px; height: 18px; }
[data-theme="light"] .theme-sun { display: block; }
[data-theme="light"] .theme-moon { display: none; }

.mobile-menu-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--accent-gradient);
    color: #ffffff;
    border: none;
    padding: 7px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 3px 8px rgba(16, 185, 129, 0.35);
    transition: all 0.2s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.mobile-menu-btn:hover {
    transform: scale(1.03);
}

/* ==============================================================
   COMPACT NAVIGATION PILLS & COLLAPSIBLE PANEL
   ============================================================== */
.navbar-nav-panel {
    border-top: 1px solid var(--border-color);
    padding: 5px 16px;
    max-width: 1380px;
    margin: 0 auto;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.navbar-nav-panel.collapsed,
#main-menu-panel.collapsed {
    display: none !important;
    height: 0 !important;
    min-height: 0 !important;
    max-height: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    border-top: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
}

.nav-row {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 2px 0;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
}

.nav-row::-webkit-scrollbar { display: none; }

.nav-row.sub-row {
    padding-top: 4px;
    border-top: 1px dashed var(--border-color);
    margin-top: 3px;
}

.nav-row-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.4px;
    flex-shrink: 0;
}

.nav-links-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 3px 5px;
    align-items: center;
}

.nav-pill, .grade-pill {
    background-color: var(--bg-main);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 3px 8px;
    border-radius: 8px;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    text-decoration: none;
    line-height: 1.25;
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.nav-pill:hover, .grade-pill:hover {
    color: var(--text-primary);
    border-color: var(--accent);
    background-color: var(--bg-card-hover);
    transform: translateY(-1px);
}

.nav-pill.active, .grade-pill.active {
    background: var(--accent-gradient);
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 2px 6px rgba(16, 185, 129, 0.3);
}

/* ==============================================================
   COMPACT AD BLOCKS (300x80) & ZERO-SPACE COLLAPSE
   ============================================================== */
.ad-slot-300x80 {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    margin: 6px auto !important;
    width: 100% !important;
    max-width: 1380px !important;
}

.ad-block-300x80 {
    width: 300px !important;
    height: 80px !important;
    background: var(--bg-card) !important;
    border: 1px dashed var(--accent) !important;
    border-radius: 8px !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
    position: relative !important;
    overflow: hidden !important;
    box-shadow: var(--shadow-sm) !important;
    text-align: center !important;
    padding: 4px 8px !important;
    box-sizing: border-box !important;
    cursor: pointer !important;
    transition: all 0.15s ease !important;
}

.ad-block-300x80:hover {
    border-color: var(--accent-blue) !important;
    background: var(--bg-card-hover) !important;
}

.ad-label {
    position: absolute !important;
    top: 3px !important;
    right: 5px !important;
    font-size: 0.60rem !important;
    text-transform: uppercase !important;
    background: rgba(16, 185, 129, 0.15) !important;
    color: var(--accent) !important;
    padding: 1px 4px !important;
    border-radius: 3px !important;
    font-weight: 700 !important;
    letter-spacing: 0.4px !important;
}

.ad-content-inner {
    display: flex !important;
    flex-direction: column !important;
    gap: 2px !important;
    margin-top: 3px !important;
}

.ad-title {
    font-size: 0.82rem !important;
    font-weight: 700 !important;
    color: var(--text-primary) !important;
}

.ad-subtitle {
    font-size: 0.70rem !important;
    color: var(--text-secondary) !important;
}

.ad-cta-btn {
    display: inline-block !important;
    background: var(--accent-gradient) !important;
    color: #ffffff !important;
    font-size: 0.68rem !important;
    font-weight: 700 !important;
    padding: 2px 10px !important;
    border-radius: 10px !important;
    margin-top: 2px !important;
}

/* ZERO-SPACE COLLAPSE: Complete elimination of empty space */
.ad-slot-300x80.is-hidden,
.ad-slot-300x80:empty,
.ad-slot-300x80[style*="display: none"],
.ad-slot-300x80[style*="display:none"],
.reader-container-box.is-hidden,
.reader-container-box[style*="display: none"],
.reader-download-wrap.is-hidden,
.reader-download-wrap[style*="display: none"],
.reader-section.is-hidden,
.reader-section[style*="display: none"] {
    display: none !important;
    margin: 0 !important;
    padding: 0 !important;
    height: 0 !important;
    min-height: 0 !important;
    max-height: 0 !important;
    line-height: 0 !important;
    font-size: 0 !important;
    overflow: hidden !important;
    visibility: hidden !important;
    border: none !important;
}

/* ==============================================================
   BREADCRUMBS
   ============================================================== */
.breadcrumbs {
    margin: 4px 0 8px 0;
}

.breadcrumbs-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.breadcrumbs-list a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.15s ease;
}

.breadcrumbs-list a:hover {
    color: var(--accent);
}

.breadcrumb-separator {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 600;
}

/* ==============================================================
   COMPACT SINGLE BOOK CARD & DETAILS
   ============================================================== */
.single-book-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    box-shadow: var(--shadow-md);
    margin-bottom: 16px;
}

.single-book-header {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    margin-bottom: 14px;
}

.single-book-cover-col {
    flex-shrink: 0;
    width: 180px;
    aspect-ratio: 3 / 4.2;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-main);
}

.single-book-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.single-book-meta-col {
    flex: 1;
    min-width: 0;
}

.single-meta-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}

.single-book-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.55rem;
    font-weight: 800;
    margin: 0 0 8px 0;
    line-height: 1.3;
    letter-spacing: -0.4px;
    color: var(--text-primary);
}

/* COMPACT BOOK DESCRIPTION ACCORDION */
.book-desc-accordion {
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    margin-top: 8px;
    transition: all 0.2s ease;
}

.book-desc-accordion[open] {
    box-shadow: var(--shadow-sm);
    border-color: rgba(16, 185, 129, 0.4);
}

.book-desc-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    cursor: pointer;
    user-select: none;
    font-weight: 700;
    font-size: 0.90rem;
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.02);
    transition: background-color 0.15s ease;
    list-style: none;
}

.book-desc-summary::-webkit-details-marker { display: none; }

.book-desc-summary:hover {
    background-color: rgba(16, 185, 129, 0.06);
    color: var(--accent);
}

.summary-title {
    display: flex;
    align-items: center;
    gap: 6px;
}

.summary-badge {
    font-size: 0.74rem;
    font-weight: 600;
    color: var(--accent);
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 2px 10px;
    border-radius: 14px;
    transition: transform 0.2s ease;
}

.book-desc-accordion[open] .summary-badge {
    transform: rotate(180deg);
}

.book-desc-body {
    padding: 12px 16px;
    border-top: 1px dashed var(--border-color);
    color: var(--text-secondary);
    font-size: 0.90rem;
    line-height: 1.55;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-2px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==============================================================
   COMPACT SOCIAL SHARE BAR
   ============================================================== */
.share-bar-container {
    margin: 8px auto 10px auto !important;
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 16px !important;
    padding: 6px 14px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
    max-width: 580px !important;
    box-shadow: var(--shadow-sm) !important;
}

.share-label {
    font-weight: 700 !important;
    font-size: 0.80rem !important;
    color: var(--text-secondary) !important;
    margin-right: 2px !important;
}

.share-buttons-group {
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
    flex-wrap: wrap !important;
}

.share-btn {
    display: inline-flex !important;
    align-items: center !important;
    gap: 4px !important;
    padding: 4px 10px !important;
    border-radius: 14px !important;
    font-size: 0.76rem !important;
    font-weight: 700 !important;
    text-decoration: none !important;
    color: #ffffff !important;
    transition: all 0.15s ease !important;
    cursor: pointer !important;
    border: none !important;
}

.share-vk { background: #0077ff !important; }
.share-vk:hover { background: #0060cc !important; transform: translateY(-1px) !important; }
.share-tg { background: #229ed9 !important; }
.share-tg:hover { background: #1a82b3 !important; transform: translateY(-1px) !important; }
.share-wa { background: #25d366 !important; }
.share-wa:hover { background: #1da851 !important; transform: translateY(-1px) !important; }
.share-copy {
    background: var(--bg-main) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color) !important;
}
.share-copy:hover {
    border-color: var(--accent) !important;
    color: var(--accent) !important;
    transform: translateY(-1px) !important;
}

/* ==============================================================
   READER FRAME & COMPACT PROMINENT DOWNLOAD BUTTON
   ============================================================== */
.reader-section {
    margin-top: 4px;
}

.reader-container-box {
    margin: 6px auto 0 auto;
    max-width: 100%;
}

.iframe-container {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    background: #000;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.iframe-container iframe {
    display: block;
    width: 100%;
    height: 650px;
    border: none;
}

.reader-download-wrap {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    padding: 6px 0 8px 0 !important;
    margin-top: 2px !important;
    width: 100% !important;
}

.btn-download-prominent {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !important;
    background: var(--accent-gradient) !important;
    color: #ffffff !important;
    font-size: 0.96rem !important;
    font-weight: 700 !important;
    padding: 10px 24px !important;
    border-radius: 24px !important;
    text-decoration: none !important;
    box-shadow: 0 3px 10px rgba(16, 185, 129, 0.4) !important;
    transition: all 0.2s ease !important;
    max-width: 280px !important;
    cursor: pointer !important;
    border: none !important;
}

.btn-download-prominent:hover {
    transform: translateY(-2px) scale(1.02) !important;
    box-shadow: 0 6px 16px rgba(16, 185, 129, 0.6) !important;
    color: #ffffff !important;
}

.btn-download-prominent .dl-icon {
    width: 18px !important;
    height: 18px !important;
    stroke: #ffffff !important;
}

/* ==============================================================
   SIMILAR BOOKS & COMPACT LISTS
   ============================================================== */
.similar-books-section {
    margin-top: 14px !important;
    border-top: 1px solid var(--border-color) !important;
    padding-top: 12px !important;
}

.compact-books-list {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px 12px !important;
}

.category-list-card {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 8px !important;
    padding: 8px 12px !important;
    text-decoration: none !important;
    color: var(--text-primary) !important;
    transition: all 0.15s ease !important;
}

.category-list-card:hover {
    border-color: var(--accent) !important;
    background: var(--bg-card-hover) !important;
    transform: translateY(-1px) !important;
}

.card-cover-thumb {
    width: 44px !important;
    height: 60px !important;
    object-fit: cover !important;
    border-radius: 4px !important;
    flex-shrink: 0 !important;
    border: 1px solid var(--border-color) !important;
}

.card-main-info {
    flex: 1 !important;
    min-width: 0 !important;
}

.card-title {
    font-size: 0.85rem !important;
    font-weight: 600 !important;
    line-height: 1.3 !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
}

.card-meta {
    display: flex !important;
    gap: 4px !important;
    margin-top: 3px !important;
}

.card-badge {
    font-size: 0.68rem !important;
    padding: 1px 6px !important;
    border-radius: 4px !important;
    background: var(--bg-main) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-secondary) !important;
}

.card-arrow {
    color: var(--accent) !important;
    font-size: 0.95rem !important;
    font-weight: 700 !important;
    flex-shrink: 0 !important;
}

/* ==============================================================
   CATALOG GRID & CLEAN STRUCTURED LISTS
   ============================================================== */
.hero-stats-banner {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, rgba(59, 130, 246, 0.08) 100%), var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 18px 24px;
    margin: 12px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    box-shadow: var(--shadow-md);
}

.hero-text h1 {
    font-size: 1.6rem;
    font-family: 'Outfit', sans-serif;
    margin: 0 0 6px 0;
    letter-spacing: -0.4px;
}

.hero-text p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.92rem;
}

.stats-counters {
    display: flex;
    gap: 12px;
}

.stat-card {
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 16px;
    text-align: center;
    min-width: 90px;
    box-shadow: var(--shadow-sm);
}

.stat-num {
    display: block;
    font-size: 1.4rem;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    color: var(--accent);
}

.stat-lbl {
    font-size: 0.72rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.filter-status-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.filter-status-bar strong {
    color: var(--accent);
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.book-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.book-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(16, 185, 129, 0.4);
}

.book-card-cover-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 4.2;
    background-color: var(--bg-main);
    overflow: hidden;
}

.book-card-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.25s ease;
}

.book-card:hover .book-card-cover {
    transform: scale(1.04);
}

.book-card-info {
    padding: 12px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex: 1;
    gap: 8px;
}

.book-card-title {
    margin: 0;
    font-size: 0.88rem;
    font-weight: 600;
    line-height: 1.3;
}

.book-card-title a {
    color: var(--text-primary);
    text-decoration: none;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-card-title a:hover {
    color: var(--accent);
}

.book-card-actions {
    display: flex;
    gap: 6px;
}

.btn-card {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.15s ease;
    border: 1px solid var(--border-color);
}

.btn-card.btn-read {
    background-color: var(--bg-main);
    color: var(--text-primary);
}

.btn-card.btn-read:hover {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
}

.btn-card.btn-dl {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent);
    border-color: rgba(16, 185, 129, 0.3);
}

.btn-card.btn-dl:hover {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
}

.category-clean-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 10px;
}

.category-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 14px;
    transition: all 0.15s ease;
    gap: 12px;
}

.category-list-item:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
    transform: translateX(3px);
}

.item-main-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.item-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

.item-title-wrap {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.item-title {
    font-size: 0.90rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.item-title a {
    color: var(--text-primary);
    text-decoration: none;
}

.item-title a:hover {
    color: var(--accent);
}

.pagination-wrap {
    margin: 16px 0;
    text-align: center;
}

.pagination-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4px;
    margin: 14px 0;
    flex-wrap: wrap;
}

.pagination-nav a, .pagination-nav span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 5px 12px;
    border-radius: 8px;
    font-size: 0.84rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: all 0.15s ease;
}

.pagination-nav a:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--bg-card-hover);
}

.pagination-nav span.current, .pagination-nav a.active {
    background: var(--accent-gradient);
    color: #ffffff;
    border-color: transparent;
}

/* ==============================================================
   COMMENTS & FOOTER
   ============================================================== */
.comments-section, #vk-comments-wrapper {
    margin-top: 14px;
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
}

.comments-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.comments-header h3 {
    font-size: 1.15rem;
    font-family: 'Outfit', sans-serif;
    margin: 0;
}

.site-footer {
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-color);
    margin-top: 20px;
    padding: 24px 0 14px 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
    margin-bottom: 18px;
}

.footer-col h4 {
    margin: 0 0 10px 0;
    font-size: 0.98rem;
    font-family: 'Outfit', sans-serif;
}

.footer-col p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.82rem;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-col li {
    margin-bottom: 5px;
}

.footer-col a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.82rem;
    transition: color 0.15s ease;
}

.footer-col a:hover {
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
    color: var(--text-muted);
    font-size: 0.78rem;
}

/* ==============================================================
   FLOATING ACTION BUTTONS (STACK)
   ============================================================== */
.floating-action-stack {
    position: fixed !important;
    right: 12px !important;
    bottom: 20px !important;
    top: auto !important;
    transform: none !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 4px !important;
    z-index: 900 !important;
}

@media (max-width: 1024px) {
    /* Hide floating stack on mobile/tablets/laptops so it NEVER covers VK comments or text */
    .floating-action-stack {
        display: none !important;
    }
}

.fab-btn {
    width: 34px !important;
    height: 28px !important;
    border-radius: 6px !important;
    border: 1px solid var(--border-color) !important;
    background: var(--bg-card) !important;
    color: var(--text-primary) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 0.72rem !important;
    font-weight: 700 !important;
    cursor: pointer !important;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25) !important;
    transition: transform 0.12s ease, background-color 0.12s ease !important;
    text-decoration: none !important;
}

.fab-btn:hover {
    transform: scale(1.1) !important;
    border-color: var(--accent) !important;
}

.fab-menu { background: var(--accent-gradient) !important; color: #fff !important; }
.fab-search { background: #f59e0b !important; color: #fff !important; }
.fab-vk { background: #4680c2 !important; color: #fff !important; }
.fab-tg { background: #2aabee !important; color: #fff !important; }
.fab-wa { background: #25d366 !important; color: #fff !important; }
.fab-copy { background: #6366f1 !important; color: #fff !important; }
.fab-scroll { background: var(--bg-main) !important; color: var(--text-primary) !important; }

/* TOAST */
.copy-toast {
    position: fixed;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #10b981;
    color: #ffffff;
    padding: 8px 20px;
    border-radius: 24px;
    font-size: 0.86rem;
    font-weight: 700;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
    opacity: 0;
    pointer-events: none;
    transition: all 0.25s ease;
    z-index: 999999;
}

.copy-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ==============================================================
   MOBILE & TABLET RESPONSIVENESS
   ============================================================== */
@media (max-width: 768px) {
    .container { padding: 0 10px !important; }
    .navbar-top-row {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 8px !important;
        padding: 8px 10px !important;
    }
    .logo {
        font-size: 1.05rem !important;
        justify-content: center !important;
    }
    .site-tagline {
        text-align: center !important;
        font-size: 0.68rem !important;
    }
    .nav-actions {
        width: 100% !important;
        justify-content: space-between !important;
    }
    .single-book-header {
        flex-direction: column !important;
        align-items: center !important;
        text-align: center !important;
        gap: 14px !important;
    }
    .single-book-cover-col {
        width: 140px !important;
        margin: 0 auto !important;
    }
    .single-meta-badges {
        justify-content: center !important;
    }
    .iframe-container iframe {
        height: 480px !important;
    }
    .btn-download-prominent {
        width: 100% !important;
        max-width: 100% !important;
    }
    .compact-books-list {
        grid-template-columns: 1fr !important;
    }
    .hero-stats-banner {
        flex-direction: column !important;
        padding: 16px 14px !important;
        text-align: center !important;
    }
    .stats-counters {
        width: 100% !important;
        justify-content: center !important;
        flex-wrap: wrap !important;
    }
    .floating-action-stack {
        right: 4px !important;
        gap: 3px !important;
    }
    .fab-btn {
        width: 32px !important;
        height: 25px !important;
    }
}

@media (max-width: 480px) {
    .iframe-container iframe {
        height: 380px !important;
    }
    .single-book-title {
        font-size: 1.3rem !important;
    }
    .nav-pill, .grade-pill {
        padding: 2px 7px !important;
        font-size: 0.74rem !important;
    }
}


#vk-comments-wrapper {
    position: relative;
    z-index: 10;
    margin-top: 16px !important;
}

#vk_comments {
    position: relative;
    z-index: 10;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
}


.mobile-menu-btn.menu-collapsed {
    background: var(--bg-main) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-secondary) !important;
    box-shadow: none !important;
}
.mobile-menu-btn.menu-collapsed:hover {
    border-color: var(--accent) !important;
    color: var(--text-primary) !important;
}