/* ============================================
   MOBI File Viewer - mobi-viewer.css
   Prefix: mbv-
   Light mode default, dark mode via [data-theme="dark"]
   Blue theme - file viewer category
   ============================================ */

/* CSS Variables - Light Mode (Default) */
:root {
    --mbv-transition: 0.25s;

    /* Primary - blue (image tools / file viewers) */
    --mbv-primary: #3399cc;
    --mbv-primary-light: #e0f0f8;
    --mbv-primary-dark: #2a7fa8;

    /* Secondary functional colors */
    --mbv-success: #339966;
    --mbv-success-light: #d1fae5;
    --mbv-warning: #d97706;
    --mbv-warning-light: #fef3c7;
    --mbv-danger: #b91c1c;
    --mbv-danger-light: #fee2e2;
    --mbv-info: #2563eb;
    --mbv-info-light: #dbeafe;

    /* Surfaces */
    --mbv-bg: #f7fafc;
    --mbv-bg-elevated: #ffffff;
    --mbv-bg-secondary: #f0f7fb;
    --mbv-bg-tertiary: #e1eff7;
    --mbv-bg-canvas: #fafafa;

    /* Text */
    --mbv-text: #1f2937;
    --mbv-text-secondary: #374151;
    --mbv-text-muted: #6b7280;

    /* Borders & shadows */
    --mbv-border: #e5e7eb;
    --mbv-border-strong: #d1d5db;
    --mbv-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --mbv-shadow-md: 0 2px 6px rgba(0, 0, 0, 0.06);
    --mbv-shadow-lg: 0 6px 16px rgba(0, 0, 0, 0.08);
}

/* Dark Mode Overrides */
[data-theme="dark"] {
    --mbv-primary: #5db8e8;
    --mbv-primary-light: rgba(93, 184, 232, 0.15);
    --mbv-primary-dark: #3399cc;

    --mbv-success: #4ade80;
    --mbv-success-light: rgba(74, 222, 128, 0.15);
    --mbv-warning: #fbbf24;
    --mbv-warning-light: rgba(251, 191, 36, 0.15);
    --mbv-danger: #f87171;
    --mbv-danger-light: rgba(248, 113, 113, 0.15);
    --mbv-info: #60a5fa;
    --mbv-info-light: rgba(96, 165, 250, 0.15);

    --mbv-bg: #0f1419;
    --mbv-bg-elevated: #1a2129;
    --mbv-bg-secondary: #232b35;
    --mbv-bg-tertiary: #2d3744;
    --mbv-bg-canvas: #0a0d12;

    --mbv-text: #e5e7eb;
    --mbv-text-secondary: #cbd5e1;
    --mbv-text-muted: #94a3b8;

    --mbv-border: #2d3744;
    --mbv-border-strong: #3d4a5c;
    --mbv-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --mbv-shadow-md: 0 2px 6px rgba(0, 0, 0, 0.4);
    --mbv-shadow-lg: 0 6px 16px rgba(0, 0, 0, 0.5);
}

/* ============================================
   Global overrides for this tool
   ============================================ */
.tool-main {
    overflow: visible !important;
    background: var(--mbv-bg-elevated) !important;
    border: 1px solid var(--mbv-border) !important;
    padding: 0 !important;
}
.tool-container {
    max-width: 1100px;
}
.tool-description {
    max-width: 800px !important;
    width: 100% !important;
    margin: 0 auto !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    float: none !important;
    display: block !important;
    text-align: center !important;
    box-sizing: border-box;
}
.mbv-tool-header .tool-description {
    margin: 0 auto !important;
}

/* Neutralize the global .upload-area::before gradient overlay */
.mbv-upload-area::before,
.mbv-upload-area::after {
    display: none !important;
    content: none !important;
}

/* ============================================
   Tool header
   ============================================ */
.mbv-tool-header {
    text-align: center !important;
    margin-bottom: 24px;
    margin-left: auto !important;
    margin-right: auto !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    width: 100% !important;
    max-width: none !important;
    float: none !important;
    display: block !important;
}
.mbv-title-row {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 0 auto 12px !important;
    width: auto !important;
    float: none !important;
    text-align: center;
}
.mbv-icon-wrapper {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--mbv-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.mbv-icon-wrapper i,
.mbv-icon-wrapper svg {
    width: 24px;
    height: 24px;
    color: #ffffff;
    stroke: #ffffff;
}
.mbv-title {
    font-size: 1.9rem !important;
    font-weight: 700 !important;
    color: var(--mbv-primary) !important;
    margin: 0 !important;
    text-align: center !important;
    width: auto !important;
    line-height: 1.2 !important;
}

/* ============================================
   Error container
   ============================================ */
.mbv-error {
    margin: 16px 20px 0;
    padding: 14px 18px;
    background: var(--mbv-danger-light);
    border: 1px solid var(--mbv-danger);
    border-radius: 10px;
    color: var(--mbv-danger);
    font-size: 0.95rem;
    line-height: 1.5;
}
.mbv-error a {
    color: var(--mbv-danger);
    font-weight: 600;
    text-decoration: underline;
}

/* ============================================
   Upload area
   ============================================ */
.mbv-upload-section {
    padding: 24px;
}
.mbv-upload-area {
    border: 2px dashed var(--mbv-border-strong);
    border-radius: 14px;
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    background: var(--mbv-bg-secondary);
    transition: border-color var(--mbv-transition), background var(--mbv-transition);
    outline: none;
}
.mbv-upload-area:hover,
.mbv-upload-area:focus-visible,
.mbv-upload-area.dragover {
    border-color: var(--mbv-primary);
    background: var(--mbv-primary-light);
}
.mbv-upload-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 16px;
    background: var(--mbv-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}
.mbv-upload-icon i,
.mbv-upload-icon svg {
    width: 32px;
    height: 32px;
    color: #ffffff;
    stroke: #ffffff;
}
.mbv-upload-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--mbv-text);
    margin: 0 0 6px;
}
.mbv-upload-subtitle {
    color: var(--mbv-text-muted);
    margin: 0 0 16px;
    font-size: 0.95rem;
}
.mbv-file-types {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 16px;
}
.mbv-type-badge {
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--mbv-bg-elevated);
    border: 1px solid var(--mbv-border);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--mbv-text-secondary);
    letter-spacing: 0.03em;
}
.mbv-upload-hint {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--mbv-success);
    font-weight: 500;
}
.mbv-upload-hint i,
.mbv-upload-hint svg {
    width: 16px;
    height: 16px;
}

/* ============================================
   Buttons
   ============================================ */
.mbv-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 9px 16px !important;
    border-radius: 9px !important;
    font-size: 0.9rem !important;
    font-weight: 600 !important;
    border: 1px solid transparent !important;
    cursor: pointer;
    transition: background var(--mbv-transition), border-color var(--mbv-transition), color var(--mbv-transition);
    background: var(--mbv-bg-secondary) !important;
    color: var(--mbv-text) !important;
    line-height: 1.2 !important;
    width: auto !important;
    min-width: 0 !important;
    text-transform: none !important;
    box-shadow: none !important;
}
.mbv-btn i,
.mbv-btn svg {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
}
.mbv-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}
.mbv-btn-primary {
    background: var(--mbv-primary) !important;
    color: #ffffff !important;
}
.mbv-btn-primary:hover:not(:disabled) {
    background: var(--mbv-primary-dark) !important;
}
.mbv-btn-secondary {
    background: var(--mbv-bg-secondary) !important;
    border-color: var(--mbv-border) !important;
    color: var(--mbv-text) !important;
}
.mbv-btn-secondary:hover:not(:disabled) {
    border-color: var(--mbv-primary) !important;
    color: var(--mbv-primary) !important;
}
.mbv-btn-ghost {
    background: transparent !important;
    border-color: transparent !important;
    color: var(--mbv-text-muted) !important;
    padding: 8px 10px !important;
}
.mbv-btn-ghost:hover:not(:disabled) {
    background: var(--mbv-bg-secondary) !important;
    color: var(--mbv-primary) !important;
}

/* ============================================
   Viewer - book header
   ============================================ */
.mbv-viewer-section {
    padding: 20px;
}
.mbv-book-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}
.mbv-book-info {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    min-width: 0;
}
.mbv-cover-wrap {
    width: 72px;
    height: 100px;
    border-radius: 8px;
    background: var(--mbv-bg-tertiary);
    border: 1px solid var(--mbv-border);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}
.mbv-cover-wrap i,
.mbv-cover-wrap svg {
    width: 28px;
    height: 28px;
    color: var(--mbv-primary);
    stroke: var(--mbv-primary);
}
.mbv-cover-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.mbv-book-meta {
    min-width: 0;
}
.mbv-book-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--mbv-text);
    margin: 0 0 2px;
    word-break: break-word;
}
.mbv-book-author {
    font-size: 0.95rem;
    color: var(--mbv-text-muted);
    margin: 0 0 8px;
}
.mbv-book-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}
.mbv-stat {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.83rem;
    color: var(--mbv-text-muted);
}
.mbv-stat i,
.mbv-stat svg {
    width: 15px;
    height: 15px;
    color: var(--mbv-primary);
    stroke: var(--mbv-primary);
}
.mbv-book-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ============================================
   Metadata panel
   ============================================ */
.mbv-meta-panel {
    background: var(--mbv-bg-secondary);
    border: 1px solid var(--mbv-border);
    border-radius: 10px;
    padding: 14px 18px;
    margin-bottom: 14px;
}
.mbv-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 10px 24px;
    margin: 0;
}
.mbv-meta-grid > div {
    min-width: 0;
}
.mbv-meta-grid dt {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--mbv-text-muted);
    font-weight: 600;
    margin: 0 0 2px;
}
.mbv-meta-grid dd {
    font-size: 0.9rem;
    color: var(--mbv-text);
    margin: 0;
    word-break: break-word;
}

/* ============================================
   Reading toolbar
   ============================================ */
.mbv-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    background: var(--mbv-bg-secondary);
    border: 1px solid var(--mbv-border);
    border-radius: 10px 10px 0 0;
    border-bottom: none;
    flex-wrap: wrap;
}
.mbv-toolbar-spacer {
    flex: 1;
}
.mbv-search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    min-width: 200px;
    flex: 0 1 280px;
}
.mbv-search-icon {
    position: absolute;
    left: 10px;
    width: 15px;
    height: 15px;
    color: var(--mbv-text-muted);
    stroke: var(--mbv-text-muted);
    pointer-events: none;
}
.mbv-search-input {
    width: 100%;
    padding: 8px 32px 8px 32px !important;
    border: 1px solid var(--mbv-border) !important;
    border-radius: 8px !important;
    background: var(--mbv-bg-elevated) !important;
    color: var(--mbv-text) !important;
    font-size: 0.88rem !important;
    outline: none;
    transition: border-color var(--mbv-transition);
}
.mbv-search-input:focus {
    border-color: var(--mbv-primary) !important;
}
.mbv-search-clear {
    position: absolute;
    right: 8px;
    background: none !important;
    border: none !important;
    padding: 2px !important;
    cursor: pointer;
    color: var(--mbv-text-muted) !important;
    display: flex;
    align-items: center;
    width: auto !important;
    box-shadow: none !important;
}
.mbv-match-counter {
    font-size: 0.82rem;
    color: var(--mbv-text-muted);
    white-space: nowrap;
}
.mbv-font-controls {
    display: flex;
    gap: 2px;
}

/* ============================================
   Reader layout: TOC + chapter
   ============================================ */
.mbv-reader {
    display: grid;
    grid-template-columns: 260px 1fr;
    border: 1px solid var(--mbv-border);
    border-radius: 0 0 10px 10px;
    overflow: hidden;
    min-height: 420px;
}
.mbv-reader > * {
    min-width: 0;
}
.mbv-reader.toc-hidden {
    grid-template-columns: 1fr;
}
.mbv-reader.toc-hidden .mbv-toc {
    display: none;
}

.mbv-toc {
    background: var(--mbv-bg-secondary);
    border-right: 1px solid var(--mbv-border);
    overflow-y: auto;
    max-height: 70vh;
}
.mbv-toc-title {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--mbv-text-muted);
    font-weight: 700;
    margin: 0;
    padding: 14px 16px 8px;
}
.mbv-toc-title i,
.mbv-toc-title svg {
    width: 15px;
    height: 15px;
}
.mbv-toc-list {
    padding: 0 8px 14px;
}
.mbv-toc-item {
    display: block;
    width: 100%;
    text-align: left;
    padding: 8px 10px !important;
    border: none !important;
    border-radius: 7px !important;
    background: transparent !important;
    color: var(--mbv-text-secondary) !important;
    font-size: 0.88rem !important;
    font-weight: 500 !important;
    cursor: pointer;
    line-height: 1.35 !important;
    transition: background var(--mbv-transition), color var(--mbv-transition);
    text-transform: none !important;
    box-shadow: none !important;
    width: 100% !important;
    min-width: 0 !important;
}
.mbv-toc-item:hover {
    background: var(--mbv-bg-tertiary) !important;
    color: var(--mbv-text) !important;
}
.mbv-toc-item.active {
    background: var(--mbv-primary) !important;
    color: #ffffff !important;
}
.mbv-toc-item.mbv-toc-depth-1 { padding-left: 24px !important; }
.mbv-toc-item.mbv-toc-depth-2 { padding-left: 38px !important; }
.mbv-toc-item.mbv-toc-depth-3 { padding-left: 52px !important; }

.mbv-chapter-pane {
    display: flex;
    flex-direction: column;
    background: var(--mbv-bg-elevated);
    min-width: 0;
}
.mbv-chapter-content {
    flex: 1;
    overflow-y: auto;
    max-height: 70vh;
    padding: 28px 36px;
    font-size: var(--mbv-read-size, 1.05rem) !important;
    line-height: 1.75;
    color: var(--mbv-text);
    font-family: Georgia, 'Times New Roman', serif;
    word-wrap: break-word;
}
/* Force inheritance so the font buttons work even when
   custom_styles.css sets a global p/span/li font-size */
.mbv-chapter-content p,
.mbv-chapter-content li,
.mbv-chapter-content blockquote,
.mbv-chapter-content div,
.mbv-chapter-content span,
.mbv-chapter-content a,
.mbv-chapter-content td,
.mbv-chapter-content th,
.mbv-chapter-content dd,
.mbv-chapter-content dt {
    font-size: inherit !important;
    font-family: inherit;
    line-height: inherit;
}
.mbv-chapter-content h1,
.mbv-chapter-content h2,
.mbv-chapter-content h3,
.mbv-chapter-content h4 {
    color: var(--mbv-text);
    line-height: 1.3;
    margin: 1.4em 0 0.6em;
    font-family: inherit;
}
.mbv-chapter-content h1 { font-size: 1.7em !important; }
.mbv-chapter-content h2 { font-size: 1.4em !important; }
.mbv-chapter-content h3 { font-size: 1.2em !important; }
.mbv-chapter-content h4 { font-size: 1.05em !important; }
.mbv-chapter-content p {
    margin: 0 0 1em;
    color: var(--mbv-text);
}
.mbv-chapter-content a {
    color: var(--mbv-primary);
    text-decoration: underline;
}
.mbv-chapter-content img,
.mbv-chapter-content svg {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1em auto;
    border-radius: 6px;
}
.mbv-chapter-content blockquote {
    margin: 1em 0;
    padding: 8px 18px;
    background: var(--mbv-bg-secondary);
    border-radius: 8px;
    color: var(--mbv-text-secondary);
    font-style: italic;
}
.mbv-chapter-content pre,
.mbv-chapter-content code {
    font-family: 'SF Mono', Consolas, Monaco, monospace;
    font-size: 0.88em;
    background: var(--mbv-bg-secondary);
    border-radius: 5px;
}
.mbv-chapter-content pre {
    padding: 12px 16px;
    overflow-x: auto;
}
.mbv-chapter-content code {
    padding: 1px 5px;
}
.mbv-chapter-content table {
    border-collapse: collapse;
    margin: 1em 0;
    max-width: 100%;
}
.mbv-chapter-content th,
.mbv-chapter-content td {
    border: 1px solid var(--mbv-border);
    padding: 6px 10px;
    font-size: 0.92em;
}
.mbv-chapter-content hr {
    border: none;
    border-top: 1px solid var(--mbv-border);
    margin: 1.6em 0;
}
.mbv-chapter-content mark.mbv-hl {
    background: var(--mbv-warning-light);
    color: var(--mbv-text);
    border-radius: 3px;
    padding: 0 1px;
}
.mbv-chapter-content mark.mbv-hl.mbv-hl-current {
    background: var(--mbv-warning);
    color: #ffffff;
}
.mbv-empty-chapter {
    color: var(--mbv-text-muted);
    text-align: center;
    padding: 60px 20px;
    font-family: inherit;
}

/* Chapter navigation footer */
.mbv-chapter-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 18px;
    border-top: 1px solid var(--mbv-border);
    background: var(--mbv-bg-secondary);
}
.mbv-chapter-counter {
    font-size: 0.85rem;
    color: var(--mbv-text-muted);
    font-weight: 500;
    text-align: center;
}

/* ============================================
   Processing overlay (compress-gif standard)
   ============================================ */
.mbv-processing {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.mbv-processing-card {
    background: var(--mbv-bg-elevated);
    border: 1px solid var(--mbv-border);
    border-radius: 14px;
    padding: 28px 32px;
    min-width: 340px;
    max-width: 420px;
    box-shadow: var(--mbv-shadow-lg);
}
.mbv-processing-stages {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
}
.mbv-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}
.mbv-stage-dot {
    width: 20px;
    height: 20px;
    padding: 6px;
    border-radius: 50%;
    background: var(--mbv-bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--mbv-transition);
}
.mbv-stage-dot i,
.mbv-stage-dot svg {
    width: 20px;
    height: 20px;
    color: var(--mbv-text-muted);
    stroke: var(--mbv-text-muted);
}
.mbv-stage.active .mbv-stage-dot {
    background: var(--mbv-primary-light);
}
.mbv-stage.active .mbv-stage-dot i,
.mbv-stage.active .mbv-stage-dot svg {
    color: var(--mbv-primary);
    stroke: var(--mbv-primary);
}
.mbv-stage.done .mbv-stage-dot {
    background: var(--mbv-success-light);
}
.mbv-stage.done .mbv-stage-dot i,
.mbv-stage.done .mbv-stage-dot svg {
    color: var(--mbv-success);
    stroke: var(--mbv-success);
}
.mbv-stage-label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--mbv-text-muted);
}
.mbv-stage.active .mbv-stage-label { color: var(--mbv-primary); }
.mbv-stage.done .mbv-stage-label { color: var(--mbv-success); }
.mbv-stage-connector {
    width: 28px;
    height: 2px;
    background: var(--mbv-border);
    margin: 0 4px 18px;
    transition: background var(--mbv-transition);
}
.mbv-stage-connector.done {
    background: var(--mbv-success);
}
.mbv-progress-bar {
    height: 8px;
    border-radius: 999px;
    background: var(--mbv-bg-secondary);
    overflow: hidden;
    margin-bottom: 10px;
}
.mbv-progress-fill {
    height: 100%;
    width: 0%;
    background: var(--mbv-primary);
    border-radius: 999px;
    transition: width 0.3s ease;
}
.mbv-progress-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.mbv-progress-status {
    font-size: 0.88rem;
    color: var(--mbv-text-secondary);
}
.mbv-progress-pct {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--mbv-text);
}

/* ============================================
   Related tools box
   ============================================ */
.mbv-related-box {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin: 24px 0;
    padding: 14px 18px;
    background: var(--mbv-bg-elevated);
    border: 1px solid var(--mbv-border);
    border-radius: 12px;
}
.mbv-related-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--mbv-text);
}
.mbv-related-label i,
.mbv-related-label svg {
    width: 16px;
    height: 16px;
    color: var(--mbv-primary);
    stroke: var(--mbv-primary);
}
.mbv-related-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 999px;
    background: var(--mbv-bg-secondary);
    border: 1px solid var(--mbv-border);
    color: var(--mbv-text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: border-color var(--mbv-transition), color var(--mbv-transition), background var(--mbv-transition);
}
.mbv-related-pill:hover {
    border-color: var(--mbv-primary);
    color: var(--mbv-primary);
    background: var(--mbv-primary-light);
}
.mbv-related-pill i,
.mbv-related-pill svg {
    width: 15px;
    height: 15px;
}

/* ============================================
   Info cards
   ============================================ */
.mbv-info-card {
    background: var(--mbv-bg-elevated);
    border: 1px solid var(--mbv-border);
    border-radius: 12px;
    padding: 28px 32px;
    margin-bottom: 24px;
}
.mbv-info-card h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--mbv-text);
    margin: 0 0 18px;
}
.mbv-info-card h2 i,
.mbv-info-card h2 svg {
    width: 22px;
    height: 22px;
    color: var(--mbv-primary);
    stroke: var(--mbv-primary);
    flex-shrink: 0;
}
.mbv-info-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--mbv-text);
    margin: 20px 0 8px;
}
.mbv-info-card p {
    color: var(--mbv-text-secondary);
    line-height: 1.7;
    margin: 0 0 12px;
    font-size: 0.95rem;
}
.mbv-info-card a {
    color: var(--mbv-primary);
    font-weight: 600;
    text-decoration: none;
}
.mbv-info-card a:hover {
    text-decoration: underline;
}

/* Steps */
.mbv-steps {
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.mbv-step {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}
.mbv-step-num {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--mbv-primary);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.mbv-step-content h3 {
    margin: 2px 0 4px;
    font-size: 1rem;
}
.mbv-step-content p {
    margin: 0;
}

/* Features grid */
.mbv-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}
.mbv-features > * {
    min-width: 0;
}
.mbv-feature {
    background: var(--mbv-bg-secondary);
    border: 1px solid var(--mbv-border);
    border-radius: 10px;
    padding: 18px;
}
.mbv-feature-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--mbv-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
}
.mbv-feature-icon i,
.mbv-feature-icon svg {
    width: 20px;
    height: 20px;
    color: var(--mbv-primary);
    stroke: var(--mbv-primary);
}
.mbv-feature h3 {
    margin: 0 0 6px;
    font-size: 0.98rem;
}
.mbv-feature p {
    margin: 0;
    font-size: 0.88rem;
    line-height: 1.55;
}

/* FAQ - uses .faq-item.open per global _footer.php handler */
.faq-item {
    border: 1px solid var(--mbv-border);
    border-radius: 10px;
    margin-bottom: 10px;
    overflow: hidden;
    background: var(--mbv-bg-secondary);
}
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100% !important;
    padding: 14px 18px !important;
    background: transparent !important;
    border: none !important;
    cursor: pointer;
    font-size: 0.98rem !important;
    font-weight: 600 !important;
    color: var(--mbv-text) !important;
    text-align: left;
    text-transform: none !important;
    box-shadow: none !important;
    min-width: 0 !important;
    line-height: 1.4 !important;
}
.faq-question:hover {
    color: var(--mbv-primary) !important;
}
.faq-question i,
.faq-question svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    transition: transform var(--mbv-transition);
}
.faq-item.open .faq-question i,
.faq-item.open .faq-question svg {
    transform: rotate(180deg);
}
.faq-answer {
    display: none;
    padding: 0 18px 16px;
}
.faq-item.open .faq-answer {
    display: block;
}
.faq-answer p {
    margin: 0;
}

/* ============================================
   Checkbox override safety (custom_styles.css forces 20px blue)
   ============================================ */
.mbv-viewer-section input[type="checkbox"] {
    width: 16px !important;
    height: 16px !important;
    border: 1px solid var(--mbv-border) !important;
    background: var(--mbv-bg-elevated) !important;
}
.mbv-viewer-section input[type="checkbox"]:checked {
    background: var(--mbv-primary) !important;
    border-color: var(--mbv-primary) !important;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 860px) {
    .mbv-reader {
        grid-template-columns: 1fr;
    }
    .mbv-toc {
        border-right: none;
        border-bottom: 1px solid var(--mbv-border);
        max-height: 240px;
    }
    .mbv-book-header {
        flex-direction: column;
    }
    .mbv-chapter-content {
        padding: 20px 18px;
    }
}
@media (max-width: 560px) {
    .mbv-upload-area {
        padding: 32px 16px;
    }
    .mbv-toolbar {
        gap: 6px;
    }
    .mbv-search-wrapper {
        flex: 1 1 100%;
        order: 10;
    }
    .mbv-info-card {
        padding: 20px 18px;
    }
    .mbv-btn span:not(.mbv-btn-label) {
        display: none;
    }
    .mbv-btn {
        padding: 9px 11px !important;
    }
    .mbv-chapter-nav .mbv-btn span {
        display: none;
    }
}

/* ============================================
   v2 Features
   ============================================ */

/* Resume banner */
.mbv-resume-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    margin-bottom: 14px;
    background: var(--mbv-primary-light);
    border: 1px solid var(--mbv-primary);
    border-radius: 10px;
    font-size: 0.88rem;
    color: var(--mbv-text);
    flex-wrap: wrap;
}
.mbv-resume-icon {
    width: 17px;
    height: 17px;
    color: var(--mbv-primary);
    stroke: var(--mbv-primary);
    flex-shrink: 0;
}
.mbv-resume-restart {
    background: none !important;
    border: none !important;
    color: var(--mbv-primary) !important;
    font-weight: 600 !important;
    font-size: 0.85rem !important;
    cursor: pointer;
    text-decoration: underline;
    padding: 0 !important;
    width: auto !important;
    box-shadow: none !important;
    text-transform: none !important;
}
.mbv-resume-close {
    margin-left: auto;
    background: none !important;
    border: none !important;
    color: var(--mbv-text-muted) !important;
    cursor: pointer;
    padding: 4px !important;
    display: flex;
    align-items: center;
    width: auto !important;
    box-shadow: none !important;
}

/* TOC match-count badges (full-book search) */
.mbv-toc-item {
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.mbv-toc-badge {
    flex-shrink: 0;
    min-width: 22px;
    padding: 1px 7px;
    border-radius: 999px;
    background: var(--mbv-warning);
    color: #ffffff;
    font-size: 0.72rem;
    font-weight: 700;
    text-align: center;
    line-height: 1.5;
}
.mbv-toc-item.active .mbv-toc-badge {
    background: #ffffff;
    color: var(--mbv-primary);
}

/* Toolbar active states */
.mbv-btn-ghost.mbv-active {
    background: var(--mbv-primary-light) !important;
    color: var(--mbv-primary) !important;
}
.mbv-theme-btn .mbv-btn-label {
    font-size: 0.82rem;
}

/* Reading themes - applied to the chapter pane only,
   independent of site [data-theme] */
.mbv-chapter-pane.mbv-rt-sepia .mbv-chapter-content {
    background: #f6efdf;
    color: #5b4636;
}
.mbv-chapter-pane.mbv-rt-sepia .mbv-chapter-content h1,
.mbv-chapter-pane.mbv-rt-sepia .mbv-chapter-content h2,
.mbv-chapter-pane.mbv-rt-sepia .mbv-chapter-content h3,
.mbv-chapter-pane.mbv-rt-sepia .mbv-chapter-content h4,
.mbv-chapter-pane.mbv-rt-sepia .mbv-chapter-content p {
    color: #5b4636;
}
.mbv-chapter-pane.mbv-rt-sepia .mbv-chapter-content a {
    color: #8a6d3b;
}
.mbv-chapter-pane.mbv-rt-sepia .mbv-chapter-content blockquote,
.mbv-chapter-pane.mbv-rt-sepia .mbv-chapter-content pre,
.mbv-chapter-pane.mbv-rt-sepia .mbv-chapter-content code {
    background: #efe5cd;
}

.mbv-chapter-pane.mbv-rt-night .mbv-chapter-content {
    background: #15181d;
    color: #c9cdd3;
}
.mbv-chapter-pane.mbv-rt-night .mbv-chapter-content h1,
.mbv-chapter-pane.mbv-rt-night .mbv-chapter-content h2,
.mbv-chapter-pane.mbv-rt-night .mbv-chapter-content h3,
.mbv-chapter-pane.mbv-rt-night .mbv-chapter-content h4,
.mbv-chapter-pane.mbv-rt-night .mbv-chapter-content p {
    color: #c9cdd3;
}
.mbv-chapter-pane.mbv-rt-night .mbv-chapter-content a {
    color: #5db8e8;
}
.mbv-chapter-pane.mbv-rt-night .mbv-chapter-content blockquote,
.mbv-chapter-pane.mbv-rt-night .mbv-chapter-content pre,
.mbv-chapter-pane.mbv-rt-night .mbv-chapter-content code {
    background: #1e232a;
}
.mbv-chapter-pane.mbv-rt-night .mbv-chapter-content mark.mbv-hl {
    background: #6b5616;
    color: #f0e6c8;
}

/* Bookmarks list */
.mbv-bookmarks {
    border-top: 1px solid var(--mbv-border);
    margin-top: 6px;
}
.mbv-bookmark-list {
    padding: 0 8px 14px;
}
.mbv-bookmark-item {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
}
.mbv-bookmark-go {
    flex: 1;
    min-width: 0;
    text-align: left;
    padding: 7px 10px !important;
    border: none !important;
    border-radius: 7px !important;
    background: transparent !important;
    color: var(--mbv-text-secondary) !important;
    font-size: 0.84rem !important;
    font-weight: 500 !important;
    cursor: pointer;
    line-height: 1.3 !important;
    text-transform: none !important;
    box-shadow: none !important;
    width: auto !important;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.mbv-bookmark-go:hover {
    background: var(--mbv-bg-tertiary) !important;
    color: var(--mbv-text) !important;
}
.mbv-bookmark-del {
    flex-shrink: 0;
    background: none !important;
    border: none !important;
    color: var(--mbv-text-muted) !important;
    cursor: pointer;
    padding: 4px !important;
    border-radius: 6px !important;
    display: flex;
    align-items: center;
    width: auto !important;
    box-shadow: none !important;
}
.mbv-bookmark-del:hover {
    color: var(--mbv-danger) !important;
    background: var(--mbv-danger-light) !important;
}

/* TOC label truncation next to badges */
.mbv-toc-label {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}

/* Block currently being read aloud */
.mbv-chapter-content .mbv-speaking {
    background: var(--mbv-primary-light);
    border-radius: 6px;
    box-shadow: 0 0 0 6px var(--mbv-primary-light);
}
.mbv-chapter-pane.mbv-rt-sepia .mbv-chapter-content .mbv-speaking {
    background: #ecdfc0;
    box-shadow: 0 0 0 6px #ecdfc0;
}
.mbv-chapter-pane.mbv-rt-night .mbv-chapter-content .mbv-speaking {
    background: #24303c;
    box-shadow: 0 0 0 6px #24303c;
}
/* Hint that paragraphs are jump targets while listening */
.mbv-chapter-content.mbv-listening p,
.mbv-chapter-content.mbv-listening li,
.mbv-chapter-content.mbv-listening blockquote,
.mbv-chapter-content.mbv-listening h1,
.mbv-chapter-content.mbv-listening h2,
.mbv-chapter-content.mbv-listening h3,
.mbv-chapter-content.mbv-listening h4 {
    cursor: pointer;
}

/* ============================================
   Full screen reading mode
   ============================================ */
.mbv-viewer-section:fullscreen,
.mbv-viewer-section:-webkit-full-screen {
    background: var(--mbv-bg-elevated);
    overflow-y: auto;
    padding: 20px 28px;
}
.mbv-fullscreen .mbv-reader {
    min-height: calc(100vh - 230px);
}
.mbv-fullscreen .mbv-chapter-content,
.mbv-fullscreen .mbv-toc {
    max-height: calc(100vh - 290px);
}

/* ============================================
   TTS audio settings panel
   ============================================ */
.mbv-toolbar {
    position: relative;
}
.mbv-tts-panel {
    position: absolute;
    top: calc(100% + 6px);
    right: 8px;
    z-index: 500;
    width: 280px;
    background: var(--mbv-bg-elevated);
    border: 1px solid var(--mbv-border);
    border-radius: 12px;
    padding: 16px;
    box-shadow: var(--mbv-shadow-lg);
}
.mbv-tts-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--mbv-text-muted);
    margin: 12px 0 6px;
}
.mbv-tts-label:first-child {
    margin-top: 0;
}
.mbv-tts-label span {
    color: var(--mbv-primary);
    font-size: 0.82rem;
    text-transform: none;
}
.mbv-tts-select {
    width: 100% !important;
    padding: 8px 10px !important;
    border: 1px solid var(--mbv-border) !important;
    border-radius: 8px !important;
    background: var(--mbv-bg-secondary) !important;
    color: var(--mbv-text) !important;
    font-size: 0.85rem !important;
    outline: none;
    cursor: pointer;
}
.mbv-tts-select:focus {
    border-color: var(--mbv-primary) !important;
}
.mbv-tts-range {
    width: 100% !important;
    height: 6px !important;
    -webkit-appearance: none !important;
    appearance: none !important;
    background: var(--mbv-bg-tertiary) !important;
    border-radius: 999px !important;
    border: none !important;
    outline: none;
    cursor: pointer;
    padding: 0 !important;
    margin: 4px 0 !important;
}
.mbv-tts-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--mbv-primary);
    border: none;
    cursor: pointer;
}
.mbv-tts-range::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--mbv-primary);
    border: none;
    cursor: pointer;
}
.mbv-tts-hint {
    margin: 12px 0 0;
    font-size: 0.76rem;
    line-height: 1.45;
    color: var(--mbv-text-muted);
}
@media (max-width: 560px) {
    .mbv-tts-panel {
        right: 4px;
        left: 4px;
        width: auto;
    }
}

/* Missing-voice hint in the TTS panel */
.mbv-tts-voice-hint {
    margin: 8px 0 0;
    padding: 8px 10px;
    background: var(--mbv-warning-light);
    border: 1px solid var(--mbv-warning);
    border-radius: 8px;
    font-size: 0.76rem;
    line-height: 1.5;
    color: var(--mbv-text-secondary);
}

/* ============================================
   DOCX-specific additions
   ============================================ */
/* Word-like document page feel */
.mbv-chapter-content {
    font-family: 'Calibri', 'Segoe UI', Arial, sans-serif;
    line-height: 1.6;
}
.mbv-chapter-content table {
    width: auto;
    max-width: 100%;
}
.mbv-chapter-content img {
    box-shadow: var(--mbv-shadow-sm);
}
/* Active heading in the contents sidebar shares the toc-item styles */

/* ============================================
   Page jump control
   ============================================ */
.mbv-page-jump {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    background: var(--mbv-bg-elevated);
    border: 1px solid var(--mbv-border);
    border-radius: 8px;
}
.mbv-page-label,
.mbv-page-total {
    font-size: 0.82rem;
    color: var(--mbv-text-muted);
    white-space: nowrap;
}
.mbv-page-input {
    width: 52px !important;
    padding: 4px 6px !important;
    border: 1px solid var(--mbv-border) !important;
    border-radius: 6px !important;
    background: var(--mbv-bg-secondary) !important;
    color: var(--mbv-text) !important;
    font-size: 0.85rem !important;
    font-weight: 600 !important;
    text-align: center;
    outline: none;
    -moz-appearance: textfield;
}
.mbv-page-input::-webkit-outer-spin-button,
.mbv-page-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.mbv-page-input:focus {
    border-color: var(--mbv-primary) !important;
}
@media (max-width: 560px) {
    .mbv-page-jump {
        order: 11;
    }
}

/* MOBI-specific: book typography + section breaks */
.mbv-chapter-content {
    font-family: Georgia, 'Times New Roman', serif;
    line-height: 1.75;
}
.mbv-chapter-content hr.mbv-pagebreak {
    border: none;
    border-top: 1px solid var(--mbv-border);
    margin: 2em auto;
    width: 50%;
}