/* ============================================================
   EBookReader — Modern Reader UI
   Clean, premium design with CSS-variable theming
   ============================================================ */

/* ---------- CSS Variables / Design Tokens ---------- */
:root {
    --reader-bg: #0d0d0d;
    --reader-surface: #1a1a2e;
    --reader-card: #16213e;
    --reader-border: rgba(255, 255, 255, 0.06);
    --reader-text: #e0e0e0;
    --reader-text-muted: #8a8a9a;
    --reader-accent: #667eea;
    --reader-accent-2: #764ba2;
    --reader-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --reader-content-bg: #1e1e2e;
    --reader-content-text: #d4d4e0;
    --reader-font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --reader-book-font: 'Georgia', 'Times New Roman', serif;
    --reader-book-size: 18px;
    --reader-book-line-height: 1.8;
    --reader-radius: 12px;
    --reader-radius-sm: 8px;
    --reader-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --reader-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --reader-page-gap: 80px;
}

/* ── Theme: Light ── */
[data-theme="light"] {
    --reader-bg: #f0f0f5;
    --reader-surface: #ffffff;
    --reader-card: #f8f8fc;
    --reader-border: rgba(0, 0, 0, 0.08);
    --reader-text: #1a1a2e;
    --reader-text-muted: #6b6b80;
    --reader-content-bg: #ffffff;
    --reader-content-text: #2c2c3a;
    --reader-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

/* ── Theme: Sepia ── */
[data-theme="sepia"] {
    --reader-bg: #f4ecd8;
    --reader-surface: #faf3e0;
    --reader-card: #fff8e7;
    --reader-border: rgba(91, 70, 54, 0.12);
    --reader-text: #5b4636;
    --reader-text-muted: #8a7460;
    --reader-accent: #c47d38;
    --reader-accent-2: #8b5e34;
    --reader-gradient: linear-gradient(135deg, #c47d38 0%, #8b5e34 100%);
    --reader-content-bg: #fdf6e3;
    --reader-content-text: #5b4636;
    --reader-shadow: 0 8px 32px rgba(91, 70, 54, 0.12);
}

/* ── Theme: Green ── */
[data-theme="green"] {
    --reader-bg: #0a0f0a;
    --reader-surface: #0d1a0d;
    --reader-card: #0f2a0f;
    --reader-border: rgba(0, 255, 0, 0.08);
    --reader-text: #33ff33;
    --reader-text-muted: #1a991a;
    --reader-accent: #33ff33;
    --reader-accent-2: #00cc00;
    --reader-gradient: linear-gradient(135deg, #33ff33 0%, #00cc00 100%);
    --reader-content-bg: #0a120a;
    --reader-content-text: #33ff33;
    --reader-shadow: 0 8px 32px rgba(0, 255, 0, 0.06);
}

/* ── Theme: Amber ── */
[data-theme="amber"] {
    --reader-bg: #0f0a00;
    --reader-surface: #1a1200;
    --reader-card: #2a1e00;
    --reader-border: rgba(255, 176, 0, 0.1);
    --reader-text: #ffb000;
    --reader-text-muted: #996a00;
    --reader-accent: #ffb000;
    --reader-accent-2: #cc8c00;
    --reader-gradient: linear-gradient(135deg, #ffb000 0%, #cc8c00 100%);
    --reader-content-bg: #120e00;
    --reader-content-text: #ffb000;
    --reader-shadow: 0 8px 32px rgba(255, 176, 0, 0.06);
}

/* ── Theme: Deep Blue ── */
[data-theme="blue"] {
    --reader-bg: #0a0e1a;
    --reader-surface: #101829;
    --reader-card: #152038;
    --reader-border: rgba(100, 149, 237, 0.1);
    --reader-text: #c8d6e5;
    --reader-text-muted: #5f7fa3;
    --reader-accent: #6495ed;
    --reader-accent-2: #4169e1;
    --reader-gradient: linear-gradient(135deg, #6495ed 0%, #4169e1 100%);
    --reader-content-bg: #0d1324;
    --reader-content-text: #c8d6e5;
    --reader-shadow: 0 8px 32px rgba(30, 50, 100, 0.3);
}

/* ---------- Base Layout ---------- */

.reader-page {
    position: fixed;
    inset: 0;
    background: var(--reader-bg);
    font-family: var(--reader-font);
    color: var(--reader-text);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: 9999;
}

/* ---------- Header ---------- */

.reader-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: var(--reader-surface);
    border-bottom: 1px solid var(--reader-border);
    flex-shrink: 0;
    z-index: 10;
}

.reader-header .back-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    color: var(--reader-accent);
    font-size: 14px;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: var(--reader-radius-sm);
    transition: background var(--reader-transition);
    text-decoration: none;
    font-family: var(--reader-font);
}

.reader-header .back-btn:hover {
    background: rgba(102, 126, 234, 0.1);
}

.reader-header .book-info {
    text-align: center;
    flex: 1;
    min-width: 0;
}

.reader-header .book-title {
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}

.reader-header .book-chapter {
    font-size: 12px;
    color: var(--reader-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
    margin-top: 2px;
}

.reader-header .header-actions {
    display: flex;
    gap: 4px;
}

.reader-header .header-btn {
    background: none;
    border: none;
    color: var(--reader-text-muted);
    font-size: 18px;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--reader-radius-sm);
    transition: all var(--reader-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
}

.reader-header .header-btn:hover {
    color: var(--reader-accent);
    background: rgba(102, 126, 234, 0.1);
}

.reader-header .header-btn.active {
    color: var(--reader-accent);
}

/* ---------- Main Content ---------- */

.reader-main {
    flex: 1;
    display: flex;
    overflow: hidden;
    position: relative;
}

/* ── Book viewport: the visible window ── */
.reader-viewport {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 20px 60px;
    position: relative;
}

.reader-content-frame {
    width: 100%;
    max-width: 800px;
    height: 100%;
    overflow: hidden;
    position: relative;
    background: var(--reader-content-bg);
    border-radius: var(--reader-radius);
    box-shadow: var(--reader-shadow);
}

/* ── Book text container (CSS columns for pagination) ── */
.reader-content {
    height: 100%;
    padding: 40px;
    box-sizing: border-box;
    column-fill: auto;
    column-gap: var(--reader-page-gap);
    /* NO overflow:hidden here — that would clip CSS columns at this element's boundary.
       The parent .reader-content-frame handles clipping instead. */
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--reader-content-text) !important;
}

/* Force theme colors on ALL elements inside reader (overrides EPUB inline styles) */
.reader-content * {
    color: inherit !important;
    background-color: transparent !important;
}

/* ── Book text styles ── */
.reader-content h1,
.reader-content h2,
.reader-content h3,
.reader-content h4,
.reader-content h5,
.reader-content h6 {
    color: var(--reader-text) !important;
    margin: 1em 0 0.5em;
    line-height: 1.3;
    overflow-wrap: break-word;
}

.reader-content h1 {
    font-size: 1.6em;
}

.reader-content h2 {
    font-size: 1.35em;
}

.reader-content h3 {
    font-size: 1.15em;
}

.reader-content p {
    font-family: var(--reader-book-font);
    font-size: var(--reader-book-size);
    line-height: var(--reader-book-line-height);
    color: var(--reader-content-text) !important;
    margin: 0 0 0.8em;
    text-align: justify;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.reader-content a {
    color: var(--reader-accent);
    text-decoration: none;
}

.reader-content img,
.reader-content svg {
    max-width: 100%;
    /* Ensure image fits in the column height (Viewport - Header - Padding) */
    max-height: calc(100vh - 160px);
    height: auto;
    border-radius: 4px;
    -webkit-image-rendering: auto;
    image-rendering: auto;
    /* Prevent images from being split across CSS columns */
    break-inside: avoid;
    display: block;
    margin: 0 auto 0.5rem auto;
}

/* Reset margins for the first chapter/cover to ensure it starts at the top */
.chapter-block:first-child {
    margin-top: 0 !important;
}

.chapter-block:first-child>*:first-child {
    margin-top: 0 !important;
}

.reader-content pre,
.reader-content code {
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
    font-size: 0.88em;
    background: rgba(0, 0, 0, 0.15);
    padding: 2px 6px;
    border-radius: 4px;
}

.reader-content pre {
    padding: 12px 16px;
    margin: 1em 0;
}

.reader-content blockquote {
    border-left: 3px solid var(--reader-accent);
    padding: 8px 16px;
    margin: 1em 0;
    opacity: 0.85;
    font-style: italic;
}

.reader-content table {
    max-width: 100%;
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
    margin: 1em 0;
    font-size: 0.9em;
}

.reader-content td,
.reader-content th {
    padding: 6px 10px;
    border: 1px solid var(--reader-border);
    overflow: hidden;
    text-overflow: ellipsis;
    word-wrap: break-word;
}

.reader-content .chapter-separator {
    break-before: column;
    height: 0;
    margin: 0;
    padding: 0;
}

/* ── Nav arrows (hover-revealed) ── */
.nav-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background: var(--reader-surface);
    color: var(--reader-text-muted);
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    transition: all var(--reader-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    z-index: 5;
}

.nav-arrow.prev {
    left: 10px;
}

.nav-arrow.next {
    right: 10px;
}

.reader-viewport:hover .nav-arrow {
    opacity: 0.7;
}

.nav-arrow:hover {
    opacity: 1 !important;
    color: var(--reader-accent);
    transform: translateY(-50%) scale(1.1);
}

/* ---------- Footer ---------- */

.reader-footer {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 20px;
    background: var(--reader-surface);
    border-top: 1px solid var(--reader-border);
    flex-shrink: 0;
    z-index: 10;
}

.reader-footer .page-info {
    font-size: 13px;
    color: var(--reader-text-muted);
    white-space: nowrap;
    min-width: 80px;
}

.progress-bar-wrapper {
    flex: 1;
    height: 4px;
    background: var(--reader-border);
    border-radius: 2px;
    overflow: hidden;
    cursor: pointer;
    transition: height var(--reader-transition);
}

.progress-bar-wrapper:hover {
    height: 8px;
}

.progress-bar-fill {
    height: 100%;
    background: var(--reader-gradient);
    border-radius: 2px;
    transition: width 0.4s ease;
    min-width: 0;
}

.reader-footer .progress-pct {
    font-size: 13px;
    color: var(--reader-text-muted);
    min-width: 36px;
    text-align: right;
}

/* ---------- Side Panel ---------- */

.reader-panel-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 50;
    opacity: 0;
    visibility: hidden;
    transition: all var(--reader-transition);
}

.reader-panel-overlay.open {
    opacity: 1;
    visibility: visible;
}

.reader-panel {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 340px;
    max-width: 85vw;
    background: var(--reader-surface);
    z-index: 51;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.3);
}

.reader-panel.open {
    transform: translateX(0);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--reader-border);
}

.panel-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.panel-close-btn {
    background: none;
    border: none;
    color: var(--reader-text-muted);
    font-size: 20px;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: color var(--reader-transition);
}

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

.panel-tabs {
    display: flex;
    border-bottom: 1px solid var(--reader-border);
}

.panel-tab {
    flex: 1;
    background: none;
    border: none;
    padding: 12px;
    font-size: 13px;
    color: var(--reader-text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--reader-transition);
    font-family: var(--reader-font);
}

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

.panel-tab.active {
    color: var(--reader-accent);
    border-bottom-color: var(--reader-accent);
}

.panel-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px 20px;
}

.panel-section {
    display: none;
}

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

/* ── TOC list ── */
.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-item {
    padding: 10px 12px;
    font-size: 14px;
    cursor: pointer;
    border-radius: var(--reader-radius-sm);
    transition: background var(--reader-transition);
    color: var(--reader-text);
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    font-family: var(--reader-font);
}

.toc-item:hover {
    background: rgba(102, 126, 234, 0.1);
}

.toc-item.active {
    color: var(--reader-accent);
    background: rgba(102, 126, 234, 0.08);
}

.toc-item.sub {
    padding-left: 28px;
    font-size: 13px;
    color: var(--reader-text-muted);
}

/* ── Settings ── */
.setting-group {
    margin-bottom: 24px;
}

.setting-group label {
    display: block;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--reader-text-muted);
    margin-bottom: 8px;
}

.setting-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.setting-btn {
    flex: 1;
    padding: 8px 12px;
    background: var(--reader-card);
    border: 1px solid var(--reader-border);
    border-radius: var(--reader-radius-sm);
    color: var(--reader-text);
    font-size: 13px;
    cursor: pointer;
    transition: all var(--reader-transition);
    text-align: center;
    font-family: var(--reader-font);
}

.setting-btn:hover {
    border-color: var(--reader-accent);
}

.setting-btn.active {
    background: var(--reader-accent);
    color: #fff;
    border-color: var(--reader-accent);
}

.font-size-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.font-size-controls button {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--reader-border);
    background: var(--reader-card);
    color: var(--reader-text);
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--reader-transition);
}

.font-size-controls button:hover {
    border-color: var(--reader-accent);
    color: var(--reader-accent);
}

.font-size-controls .size-value {
    font-size: 14px;
    font-weight: 600;
    min-width: 40px;
    text-align: center;
}

/* ── Bookmark list ── */
.bookmark-item {
    padding: 12px;
    border-radius: var(--reader-radius-sm);
    background: var(--reader-card);
    margin-bottom: 8px;
    cursor: pointer;
    transition: all var(--reader-transition);
    display: flex;
    align-items: center;
    gap: 10px;
}

.bookmark-item:hover {
    background: rgba(102, 126, 234, 0.1);
}

.bookmark-item .bk-icon {
    color: var(--reader-accent);
    font-size: 16px;
}

.bookmark-item .bk-text {
    flex: 1;
    min-width: 0;
}

.bookmark-item .bk-title {
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.bookmark-item .bk-chapter {
    font-size: 11px;
    color: var(--reader-text-muted);
}

.bookmark-item .bk-delete {
    background: none;
    border: none;
    color: var(--reader-text-muted);
    cursor: pointer;
    padding: 4px;
    font-size: 14px;
    opacity: 0;
    transition: all var(--reader-transition);
}

.bookmark-item:hover .bk-delete {
    opacity: 1;
}

.bookmark-item .bk-delete:hover {
    color: #e74c3c;
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--reader-text-muted);
    font-size: 14px;
}

.empty-state i {
    font-size: 32px;
    margin-bottom: 12px;
    display: block;
    opacity: 0.4;
}

/* ---------- Loading ---------- */

.reader-loading {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--reader-bg);
    z-index: 100;
    transition: opacity 0.5s ease;
}

.reader-loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--reader-border);
    border-top-color: var(--reader-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loader-text {
    margin-top: 16px;
    font-size: 14px;
    color: var(--reader-text-muted);
}

.loader-progress {
    margin-top: 8px;
    font-size: 12px;
    color: var(--reader-text-muted);
    opacity: 0.7;
}

/* ---------- Responsive ---------- */

@media (max-width: 768px) {
    .reader-viewport {
        padding: 10px 8px;
    }

    .reader-content {
        padding: 20px;
    }

    .reader-content-frame {
        border-radius: 0;
    }

    .nav-arrow {
        width: 36px;
        height: 36px;
        font-size: 16px;
        opacity: 0.5;
    }

    .nav-arrow.prev {
        left: 2px;
    }

    .nav-arrow.next {
        right: 2px;
    }

    .reader-panel {
        width: 100%;
        max-width: 100vw;
    }

    .reader-header .book-info {
        max-width: 50vw;
    }
}

/* ---------- Utilities ---------- */

.hidden {
    display: none !important;
}

/* ── Page transition animation ── */
.reader-content.page-turning {
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Scrollbar (panel) */
.panel-body::-webkit-scrollbar {
    width: 4px;
}

.panel-body::-webkit-scrollbar-track {
    background: transparent;
}

.panel-body::-webkit-scrollbar-thumb {
    background: var(--reader-border);
    border-radius: 2px;
}

/* ============================================================
   E-Reader Library Pages
   ============================================================ */

.ereader-library {
    min-height: 100vh;
    background: #0d0d0d;
    color: #e8e8f0;
    padding-bottom: 3rem;
}

/* ── Header ── */
.library-header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 2rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.library-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

.library-title .retro-icon {
    margin-right: 0.5rem;
}

.library-subtitle {
    color: #a0a0b8;
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* ── Buttons ── */
.btn-retro {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    padding: 0.5rem 1.25rem;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.25s ease;
    text-decoration: none;
}

.btn-retro:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    color: #ffffff;
}

.btn-retro-outline {
    background: transparent;
    color: #c0c0d4;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    padding: 0.5rem 1.25rem;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.25s ease;
    text-decoration: none;
}

.btn-retro-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.3);
}

/* ── Filters ── */
.library-filters {
    margin-bottom: 1.5rem;
}

.retro-input,
.retro-select {
    background: #1a1a2e;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #e8e8f0;
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
    transition: border-color 0.2s ease;
}

.retro-input::placeholder {
    color: #6b6b80;
}

.retro-input:focus,
.retro-select:focus {
    background: #1e1e34;
    border-color: #667eea;
    color: #ffffff;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
    outline: none;
}

.retro-select option {
    background: #1a1a2e;
    color: #e8e8f0;
}

/* ── Books Grid ── */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
}

/* ── Book Cards ── */
.ereader-library .book-card {
    background: #1a1a2e;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.ereader-library .book-card:hover {
    transform: translateY(-4px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

/* ── Book Cover ── */
.ereader-library .book-cover {
    position: relative;
    aspect-ratio: 2 / 3;
    overflow: hidden;
    background: #16213e;
    /* Spacing between cover and text */
    margin-bottom: 0;
}

.ereader-library .book-cover img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 10px;
    transition: transform 0.4s ease;
}

.ereader-library .book-card:hover .book-cover img {
    transform: scale(1.05);
}

.ereader-library .no-cover {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #6b6b80;
    font-size: 3rem;
    background: linear-gradient(135deg, #16213e, #1a1a2e);
}

.ereader-library .no-cover small {
    font-size: 0.75rem;
    margin-top: 0.5rem;
}

.ereader-library .library-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    font-size: 1.25rem;
}

/* ── Book Info — spacing between image and text ── */
.ereader-library .book-info {
    padding: 1rem 1rem 1.15rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.ereader-library .book-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.35rem;
    line-height: 1.3;
}

.ereader-library .book-author {
    font-size: 0.82rem;
    color: #a0a0b8;
    margin-bottom: 0.6rem;
}

/* ── Badges ── */
.ereader-library .book-meta {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.ereader-library .source-badge,
.ereader-library .lang-badge {
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    background: rgba(102, 126, 234, 0.12);
    color: #8a9bea;
    font-weight: 500;
}

.ereader-library .source-gutenberg {
    background: rgba(72, 187, 120, 0.12);
    color: #68d391;
}

/* ── Book Actions ── */
.ereader-library .book-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: auto;
}

.ereader-library .book-actions .btn {
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
}

/* ── Empty State ── */
.ereader-library .empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
}

.ereader-library .empty-state h3 {
    color: #ffffff;
    font-size: 1.3rem;
    margin: 1rem 0 0.5rem;
}

.ereader-library .empty-state p {
    color: #8a8a9a;
    margin-bottom: 1.5rem;
}

.retro-tv-static {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(102, 126, 234, 0.1);
    font-size: 2.5rem;
}

/* ── Pagination ── */
.pagination-retro {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    padding: 1rem 0;
}

.pagination-retro .page-info {
    color: #a0a0b8;
    font-size: 0.9rem;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .books-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 1rem;
    }

    .library-title {
        font-size: 1.3rem;
    }
}

/* Force CSS Update 2026-02-16 */