/* Fejlesztő / Karbantartó: Vajay Attila (vajay.attila@gmail.com) */
:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --muted-text-color: #5f6b7a;
    --sidebar-bg: #f8f9fa;
    --border-color: #dee2e6;
    --accent-color: #0d6efd;
    --hover-bg: #e9ecef;
    --search-highlight-bg: #ffd43b;
    --search-highlight-outline: rgba(0, 0, 0, 0.25);
    --search-highlight-opacity: 0.5;
    --import-overwrite-color: #2f9e44;
    --import-overwrite-bg: rgba(47, 158, 68, 0.14);
    --import-skip-color: #e03131;
    --import-skip-bg: rgba(224, 49, 49, 0.14);
}

body.theme-dark {
    --bg-color: #212529;
    --text-color: #e9ecef;
    --muted-text-color: #b9c2cb;
    --sidebar-bg: #343a40;
    --border-color: #495057;
    --accent-color: #0d6efd;
    --hover-bg: #495057;
    --search-highlight-bg: #8a6a00;
    --search-highlight-outline: rgba(255, 255, 255, 0.32);
    --search-highlight-opacity: 0.55;
    --import-overwrite-color: #69db7c;
    --import-overwrite-bg: rgba(105, 219, 124, 0.14);
    --import-skip-color: #ff8787;
    --import-skip-bg: rgba(255, 135, 135, 0.14);
}

body.theme-sepia {
    --bg-color: #fbf0d9;
    --text-color: #5f4b32;
    --muted-text-color: #7a6143;
    --sidebar-bg: #f4ecd8;
    --border-color: #d1c7b0;
    --accent-color: #d97736;
    --hover-bg: #e8dfc8;
    --search-highlight-bg: #e6c86a;
    --search-highlight-outline: rgba(72, 52, 28, 0.35);
    --search-highlight-opacity: 0.5;
    --import-overwrite-color: #2b8a3e;
    --import-overwrite-bg: rgba(43, 138, 62, 0.12);
    --import-skip-color: #c92a2a;
    --import-skip-bg: rgba(201, 42, 42, 0.12);
}

body.theme-sepia-dark {
    --bg-color: #433422;
    --text-color: #e5d3b3;
    --muted-text-color: #c7b08f;
    --sidebar-bg: #3a2d1d;
    --border-color: #5c4832;
    --accent-color: #d97736;
    --hover-bg: #4f3d28;
    --search-highlight-bg: #8b6a1e;
    --search-highlight-outline: rgba(255, 232, 195, 0.35);
    --search-highlight-opacity: 0.55;
    --import-overwrite-color: #8ce99a;
    --import-overwrite-bg: rgba(140, 233, 154, 0.14);
    --import-skip-color: #ffa8a8;
    --import-skip-bg: rgba(255, 168, 168, 0.14);
}

body.theme-amoled-light {
    --bg-color: #ffffff;
    --text-color: #000000;
    --muted-text-color: #4b5563;
    --sidebar-bg: #fafafa;
    --border-color: #e5e5e5;
    --accent-color: #3b82f6;
    --hover-bg: #f4f4f5;
    --search-highlight-bg: #ffd43b;
    --search-highlight-outline: rgba(0, 0, 0, 0.3);
    --search-highlight-opacity: 0.48;
    --import-overwrite-color: #2b8a3e;
    --import-overwrite-bg: rgba(43, 138, 62, 0.14);
    --import-skip-color: #c92a2a;
    --import-skip-bg: rgba(201, 42, 42, 0.14);
}

body.theme-amoled-dark {
    --bg-color: #000000;
    --text-color: #d1d5db;
    --muted-text-color: #a7afba;
    --sidebar-bg: #09090b;
    --border-color: #27272a;
    --accent-color: #3b82f6;
    --hover-bg: #18181b;
    --search-highlight-bg: #8a6a00;
    --search-highlight-outline: rgba(255, 255, 255, 0.35);
    --search-highlight-opacity: 0.58;
    --import-overwrite-color: #69db7c;
    --import-overwrite-bg: rgba(105, 219, 124, 0.14);
    --import-skip-color: #ff8787;
    --import-skip-bg: rgba(255, 135, 135, 0.16);
}

body.theme-slate-light {
    --bg-color: #f1f5f9;
    --text-color: #334155;
    --muted-text-color: #475569;
    --sidebar-bg: #e2e8f0;
    --border-color: #cbd5e1;
    --accent-color: #0ea5e9;
    --hover-bg: #e2e8f0;
    --search-highlight-bg: #f9d857;
    --search-highlight-outline: rgba(15, 23, 42, 0.28);
    --search-highlight-opacity: 0.48;
    --import-overwrite-color: #2b8a3e;
    --import-overwrite-bg: rgba(43, 138, 62, 0.12);
    --import-skip-color: #c92a2a;
    --import-skip-bg: rgba(201, 42, 42, 0.12);
}

body.theme-slate-dark {
    --bg-color: #0f172a;
    --text-color: #94a3b8;
    --muted-text-color: #b2c0d1;
    --sidebar-bg: #1e293b;
    --border-color: #334155;
    --accent-color: #0ea5e9;
    --hover-bg: #334155;
    --search-highlight-bg: #8a6a00;
    --search-highlight-outline: rgba(255, 255, 255, 0.35);
    --search-highlight-opacity: 0.58;
    --import-overwrite-color: #8ce99a;
    --import-overwrite-bg: rgba(140, 233, 154, 0.14);
    --import-skip-color: #ffa8a8;
    --import-skip-bg: rgba(255, 168, 168, 0.14);
}

body.theme-eink {
    --bg-color: #f2f2f0;
    --text-color: #2b2b2b;
    --muted-text-color: #5a5a55;
    --sidebar-bg: #e5e5e0;
    --border-color: #d1d1cd;
    --accent-color: #4a4a4a;
    --hover-bg: #dadad3;
    --search-highlight-bg: #d5c27a;
    --search-highlight-outline: rgba(45, 45, 45, 0.35);
    --search-highlight-opacity: 0.46;
    --import-overwrite-color: #3a7d44;
    --import-overwrite-bg: rgba(58, 125, 68, 0.12);
    --import-skip-color: #b02a2a;
    --import-skip-bg: rgba(176, 42, 42, 0.12);
}

/* Különleges textúra az e-ink témához, hogy papírszerűbb legyen */
body.theme-eink #workspace {
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
    background-color: var(--bg-color);
}


* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html,
body {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow: hidden;
    transition: background-color 0.3s, color 0.3s;
}

#app {
    display: flex;
    height: 100%;
    width: 100%;
}

#sidebar {
    width: 320px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: margin-left 0.3s ease, transform 0.3s ease;
    z-index: 100;
}

#sidebar.collapsed {
    margin-left: -320px;
}

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

.sidebar-tabs button {
    flex: 1;
    padding: 15px;
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: color 0.2s, border-bottom 0.2s;
}

.sidebar-tabs button:hover {
    background-color: var(--hover-bg);
}

.sidebar-tabs button.active {
    border-bottom: 3px solid var(--accent-color);
    color: var(--accent-color);
}

.sidebar-content {
    display: none;
    flex: 1;
    overflow-y: auto;
    padding: 15px;
}

.sidebar-content.active {
    display: block;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    margin-bottom: 20px;
    transition: background-color 0.2s, border-color 0.2s;
}

.upload-zone:hover,
.upload-zone.dragover {
    background-color: var(--hover-bg);
    border-color: var(--accent-color);
}

.upload-zone input {
    display: none;
}

.upload-zone button {
    margin-top: 15px;
    padding: 8px 16px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
}

.library-filter {
    margin-bottom: 12px;
}

#library-search {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 14px;
    outline: none;
}

#library-search:focus {
    border-color: var(--accent-color);
}

/* Book List */
#book-list .book-item {
    display: flex;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-bottom: 8px;
    cursor: pointer;
    align-items: center;
    background-color: var(--bg-color);
    transition: transform 0.1s, box-shadow 0.1s;
}

#book-list .book-item:hover {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

#book-list .book-title {
    font-weight: 500;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

#book-list .empty-state {
    color: var(--muted-text-color);
    font-size: 13px;
    padding: 8px 2px;
}

/* Workspace */
#workspace {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    min-width: 0;
    min-height: 0;
}

/* Toolbar */
#toolbar {
    height: 50px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 15px;
    background-color: var(--bg-color);
    z-index: 50;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 20px;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.2s;
    flex-shrink: 0;
}

.icon-btn:hover {
    background-color: var(--sidebar-bg);
}

.book-info {
    font-weight: 600;
    font-size: 16px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 0 10px;
    flex: 1;
    min-width: 0;
    text-align: center;
}

.controls {
    display: flex;
    flex-shrink: 0;
    gap: 8px;
    align-items: center;
}

.network-status {
    font-size: 11px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 999px;
    border: 1px solid transparent;
    user-select: none;
}

.network-status.online {
    color: #0f5132;
    background: #d1e7dd;
    border-color: #badbcc;
}

.network-status.offline {
    color: #842029;
    background: #f8d7da;
    border-color: #f5c2c7;
}

/* Settings Panel */
#settings-panel {
    position: absolute;
    top: 55px;
    right: 15px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 15px;
    z-index: 200;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    min-width: 250px;
    max-height: calc(100dvh - 70px);
    overflow-y: auto;
    overscroll-behavior: contain;
}

#settings-panel.hidden {
    display: none;
}

.setting-group {
    margin-bottom: 15px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.setting-group label {
    font-size: 14px;
    font-weight: 600;
}

.setting-group select,
.setting-group input {
    padding: 6px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--sidebar-bg);
    color: var(--text-color);
}

.settings-btn-row {
    display: flex;
    gap: 8px;
}

.settings-btn-row button {
    flex: 1;
    padding: 6px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    font-size: 12px;
}

.settings-btn-row button:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Reader Area */
#reader-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    min-height: 0;
}

.selection-approve-box {
    position: absolute;
    left: 50%;
    bottom: 48px;
    transform: translateX(-50%);
    z-index: 250;
    display: inline-flex;
    gap: 8px;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: var(--bg-color);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.28);
    padding: 8px;
}

.selection-approve-box button {
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 7px 12px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    font-size: 13px;
    line-height: 1;
}

#selection-approve-btn {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

#selection-dictionary-btn {
    border-color: var(--border-color);
}

.nav-btn {
    width: 60px;
    height: 100%;
    background: transparent;
    border: none;
    font-size: 50px;
    color: var(--muted-text-color);
    cursor: pointer;
    transition: color 0.2s, background 0.2s;
    z-index: 10;
    flex-shrink: 0;
}

.nav-btn:hover {
    color: var(--accent-color);
    background: rgba(128, 128, 128, 0.05);
}

#viewer {
    flex: 1;
    min-width: 0;
    height: 100%;
    position: relative;
    max-width: 850px;
    padding: 10px 15px;
    box-sizing: border-box;
}

#viewer,
#viewer * {
    user-select: text;
    -webkit-user-select: text;
    -webkit-touch-callout: default;
}

.epub-container {
    width: 100%;
    height: 100%;
}

/* Progress */
#progress-bar {
    min-height: 32px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 12px;
    background-color: var(--sidebar-bg);
}

#clock-time {
    opacity: 0.85;
    font-variant-numeric: tabular-nums;
}

.stats-indicator {
    border: 1px solid var(--border-color);
    border-radius: 999px;
    min-width: 28px;
    height: 24px;
    padding: 0 8px;
    background: var(--bg-color);
    color: var(--muted-text-color);
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.stats-indicator.active {
    color: #2b8a3e;
    border-color: #2b8a3e;
}

.stats-indicator.inactive {
    color: var(--muted-text-color);
    border-color: var(--border-color);
}

.stats-indicator:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

#reading-page {
    opacity: 0.9;
    font-variant-numeric: tabular-nums;
}

.page-jump {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

#page-jump-input {
    width: 72px;
    padding: 2px 6px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 12px;
}

#page-jump-btn {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 12px;
    padding: 2px 8px;
    cursor: pointer;
}

#page-jump-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* TOC */
.toc-item {
    padding: 8px;
    cursor: pointer;
    font-size: 14px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.toc-item:hover {
    background-color: var(--hover-bg);
    color: var(--accent-color);
}

.bookmarks-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.bookmarks-header h3 {
    font-size: 14px;
}

#add-bookmark-btn {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 12px;
    padding: 4px 8px;
    cursor: pointer;
}

#add-bookmark-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.bookmarks-list {
    margin-top: 8px;
    font-size: 13px;
}

#book-search-results {
    max-height: 34vh;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding-right: 2px;
}

.book-search-box {
    display: flex;
    gap: 6px;
    margin-top: 8px;
}

#book-search-input {
    flex: 1;
    min-width: 0;
    padding: 6px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 12px;
}

#book-search-input:focus {
    border-color: var(--accent-color);
    outline: none;
}

#book-search-btn,
#book-search-clear-btn {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 12px;
    padding: 4px 8px;
    cursor: pointer;
}

#book-search-btn:hover,
#book-search-clear-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.book-search-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 6px;
}

#book-search-prev-btn,
#book-search-next-btn {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 12px;
    padding: 4px 8px;
    cursor: pointer;
    min-height: 30px;
}

#book-search-prev-btn:hover,
#book-search-next-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

#book-search-prev-btn:disabled,
#book-search-next-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

#book-search-counter {
    flex: 1;
    min-width: 0;
    text-align: center;
    font-size: 12px;
    color: var(--muted-text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 6px 8px;
    line-height: 1.1;
}

.book-search-nav.disabled #book-search-counter {
    opacity: 0.7;
}

.search-result-item {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px;
    margin-bottom: 8px;
    background-color: var(--bg-color);
    cursor: pointer;
}

.search-result-item:hover {
    border-color: var(--accent-color);
}

.search-result-item.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
}

.search-result-title {
    font-size: 12px;
    color: var(--muted-text-color);
    margin-bottom: 4px;
}

.search-result-excerpt {
    font-size: 13px;
    line-height: 1.35;
    word-break: break-word;
}

.bookmark-item {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px;
    margin-bottom: 8px;
    background-color: var(--bg-color);
}

.bookmark-label {
    font-size: 13px;
    margin-bottom: 6px;
    word-break: break-word;
}

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

.bookmark-actions button {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 12px;
    padding: 3px 8px;
    cursor: pointer;
}

.bookmark-actions button:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.highlight-item {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px;
    margin-bottom: 8px;
    background-color: var(--bg-color);
}

.highlight-text {
    font-size: 13px;
    margin-bottom: 6px;
    word-break: break-word;
}

.highlight-note {
    font-size: 12px;
    margin-bottom: 6px;
    color: var(--muted-text-color);
    word-break: break-word;
}

.fb2-highlight {
    border-radius: 2px;
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
}

.fb2-reader,
.fb2-reader * {
    user-select: text;
    -webkit-user-select: text;
    -webkit-touch-callout: default;
}

.fb2-search-hit {
    border-radius: 2px;
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
    background-color: var(--search-highlight-bg);
    outline: 1px solid var(--search-highlight-outline);
}

/* Responsive Overlay */
#mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 90;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

#mobile-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* Responsive */
@media (max-width: 768px) {
    #toolbar {
        padding: 0 8px;
        gap: 4px;
    }

    .book-info {
        padding: 0 6px;
        font-size: 15px;
        text-align: left;
    }

    .controls {
        gap: 2px;
    }

    .icon-btn {
        padding: 4px 6px;
        font-size: 19px;
    }

    .network-status {
        display: none;
    }

    #sidebar {
        position: absolute;
        height: 100%;
        transform: translateX(-100%);
        margin-left: 0 !important;
    }

    #sidebar.open {
        transform: translateX(0);
        box-shadow: 4px 0 15px rgba(0, 0, 0, 0.3);
    }

    .nav-btn {
        width: 25px;
        font-size: 24px;
    }

    #viewer {
        padding: 5px;
    }

    #progress-bar {
        padding-left: max(10px, env(safe-area-inset-left));
        padding-right: max(10px, env(safe-area-inset-right));
    }

    .selection-approve-box {
        bottom: calc(44px + env(safe-area-inset-bottom));
        width: min(92vw, 380px);
        justify-content: stretch;
    }

    .selection-approve-box button {
        flex: 1;
        min-height: 38px;
        font-size: 14px;
    }

    #settings-panel {
        left: 8px;
        right: 8px;
        top: 54px;
        min-width: 0;
        max-height: calc(100dvh - 62px - env(safe-area-inset-bottom));
    }

    .book-search-box {
        flex-wrap: wrap;
    }

    #book-search-input {
        flex-basis: 100%;
        min-height: 36px;
        font-size: 13px;
    }

    #book-search-btn,
    #book-search-clear-btn {
        flex: 1;
        min-height: 36px;
        font-size: 13px;
    }

    .book-search-nav {
        gap: 8px;
    }

    #book-search-prev-btn,
    #book-search-next-btn {
        flex: 1;
        min-height: 36px;
        font-size: 13px;
    }

    #book-search-counter {
        min-width: 72px;
        font-size: 12px;
        padding: 8px 6px;
    }

    #book-search-results {
        max-height: 30vh;
    }
}

/* Modal Popup Adatlap */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background-color: var(--sidebar-bg);
    color: var(--text-color);
    padding: 30px;
    border-radius: 8px;
    max-width: 600px;
    width: 90%;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

.modal-close-btn {
    position: absolute;
    top: 10px;
    right: 15px;
    background: none;
    border: none;
    font-size: 28px;
    color: var(--text-color);
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.modal-close-btn:hover {
    opacity: 1;
}

.modal-body {
    display: flex;
    gap: 25px;
}

#book-modal .modal-content {
    max-height: calc(100vh - 32px);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

#book-modal .modal-body {
    min-height: 0;
    overflow: auto;
    padding-right: 4px;
}

#modal-cover {
    width: 200px;
    height: 300px;
    object-fit: cover;
    border-radius: 4px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
}

.modal-fallback {
    width: 200px;
    height: 300px;
    background-color: var(--bg-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--muted-text-color);
    border: 1px solid var(--border-color);
    font-size: 14px;
}

.modal-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hidden {
    display: none !important;
}

.modal-info h2 {
    font-size: 22px;
    margin-bottom: 5px;
    line-height: 1.2;
}

.modal-info h3 {
    font-size: 16px;
    color: var(--muted-text-color);
    margin-bottom: 20px;
    font-weight: normal;
}

.modal-stats-section {
    margin-top: 14px;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
}

#modal-stats-heading {
    font-size: 15px;
    margin: 0 0 8px 0;
}

.modal-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.modal-stats-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px;
}

.modal-stats-item span {
    font-size: 12px;
    color: var(--muted-text-color);
}

.modal-stats-item strong {
    font-size: 16px;
    line-height: 1.2;
}

.modal-info p {
    font-size: 14px;
    margin-bottom: 8px;
    line-height: 1.4;
}

.modal-info strong {
    opacity: 0.8;
}

#modal-edit-fields {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

#modal-edit-fields label {
    font-size: 12px;
    font-weight: 600;
    opacity: 0.85;
}

#modal-edit-fields input,
#modal-edit-fields textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 14px;
}

#modal-edit-fields textarea {
    resize: vertical;
}

.modal-actions {
    margin-top: 10px;
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.modal-actions button {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 12px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
}

#modal-edit-save-btn {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.highlight-modal-content {
    max-width: 460px;
}

.highlight-modal-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.highlight-modal-body h3 {
    margin-right: 24px;
}

.highlight-modal-preview {
    font-size: 13px;
    line-height: 1.4;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    max-height: 120px;
    overflow: auto;
}

.highlight-color-section p {
    font-size: 13px;
    margin-bottom: 8px;
}

.highlight-color-options {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.highlight-color-btn {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: transform 0.15s ease, border-color 0.15s ease;
}

.highlight-color-btn:hover {
    transform: scale(1.08);
}

.highlight-color-btn.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(13, 110, 253, 0.25);
}

#highlight-note-input {
    width: 100%;
    resize: vertical;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 14px;
}

#highlight-note-input:focus {
    border-color: var(--accent-color);
    outline: none;
}

.highlight-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.highlight-modal-actions button {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 12px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
}

.highlight-modal-actions button:last-child {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.bookmark-modal-content {
    max-width: 420px;
}

.bookmark-modal-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

#bookmark-label-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 14px;
}

#bookmark-label-input:focus {
    border-color: var(--accent-color);
    outline: none;
}

.bookmark-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.bookmark-modal-actions button {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 12px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
}

.bookmark-modal-actions button:last-child {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.confirm-modal-content {
    max-width: 420px;
}

.confirm-modal-body {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.confirm-modal-body p {
    font-size: 14px;
    line-height: 1.45;
}

#confirm-modal-message.is-rich {
    margin: 0;
}

.import-report-lines {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.import-report-line {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 10px;
    background: var(--bg-color);
    font-size: 13px;
    line-height: 1.4;
}

.confirm-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.confirm-modal-actions button {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 12px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
}

.confirm-modal-actions button:last-child {
    border-color: #dc3545;
    color: #dc3545;
}

.dictionary-modal-content {
    max-width: 620px;
    width: min(94vw, 620px);
    max-height: calc(100dvh - 24px);
    padding: 20px 16px 14px;
}

.dictionary-modal-body {
    display: flex;
    flex-direction: column;
    min-height: 0;
    gap: 10px;
}

.dictionary-pair-group {
    gap: 6px;
}

.dictionary-modal-results {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px;
    min-height: 100px;
    max-height: min(48vh, 380px);
    overflow: auto;
}

.dictionary-results-title {
    margin: 0 0 10px 0;
    font-size: 17px;
    font-weight: 700;
    color: var(--text-color);
}

.dictionary-results-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.dictionary-entry {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 9px 10px;
    background: var(--bg-color);
}

.dictionary-entry-term {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.2;
}

.dictionary-entry-pos {
    margin-top: 4px;
    font-size: 12px;
    color: var(--muted-text-color);
}

.dictionary-entry-pos-label {
    font-weight: 700;
}

.dictionary-entry-translations {
    margin-top: 6px;
    font-size: 16px;
    line-height: 1.45;
    color: var(--text-color);
}

.dictionary-source-note {
    margin: 12px 0 0 0;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
    font-size: 12px;
    color: var(--muted-text-color);
}

.dictionary-modal-actions {
    display: flex;
    justify-content: flex-end;
}

.dictionary-modal-actions button {
    border: 1px solid var(--accent-color);
    border-radius: 6px;
    padding: 8px 12px;
    background: var(--bg-color);
    color: var(--accent-color);
    cursor: pointer;
}

.import-plan-modal-content {
    max-width: 760px;
    width: min(94vw, 760px);
    max-height: calc(100dvh - 24px);
    padding: 22px 18px 16px;
    display: flex;
    flex-direction: column;
}

.import-plan-body {
    display: flex;
    flex-direction: column;
    min-height: 0;
    gap: 10px;
}

#import-plan-title {
    margin-right: 26px;
    font-size: 30px;
}

.import-plan-summary {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    background: var(--bg-color);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.import-plan-summary p {
    font-size: 13px;
    line-height: 1.35;
}

.import-plan-actions-row {
    display: flex;
    gap: 8px;
}

.import-plan-actions-row button {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 7px 10px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    font-size: 12px;
}

.import-plan-actions-row button:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

#import-plan-empty {
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    padding: 10px;
    font-size: 13px;
    color: var(--muted-text-color);
}

.import-plan-conflicts {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px;
    background: var(--bg-color);
    max-height: 40dvh;
    overflow-y: auto;
    overscroll-behavior: contain;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.import-plan-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px;
    align-items: center;
}

.import-plan-row.is-overwrite {
    border-color: var(--import-overwrite-color);
    background: var(--import-overwrite-bg);
}

.import-plan-row.is-skip {
    border-color: var(--import-skip-color);
    background: var(--import-skip-bg);
}

.import-plan-book-title {
    font-size: 13px;
    font-weight: 600;
    word-break: break-word;
}

.import-plan-book-meta {
    font-size: 12px;
    color: var(--muted-text-color);
    margin-top: 3px;
}

.import-plan-choice {
    min-width: 132px;
    padding: 6px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--sidebar-bg);
    color: var(--text-color);
}

.import-plan-choice.choice-overwrite {
    border-color: var(--import-overwrite-color);
    color: var(--import-overwrite-color);
}

.import-plan-choice.choice-skip {
    border-color: var(--import-skip-color);
    color: var(--import-skip-color);
}

.import-plan-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.import-plan-footer button {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 12px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
}

#import-plan-start {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.about-modal-content {
    max-width: 560px;
}

.about-modal-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#about-logo {
    width: min(100%, 420px);
    max-height: 120px;
    object-fit: contain;
    align-self: center;
}

.about-meta-list {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-color);
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.about-meta-list p {
    font-size: 14px;
    line-height: 1.45;
}

.about-meta-list a {
    color: var(--accent-color);
    text-decoration: none;
}

.about-meta-list a:hover {
    text-decoration: underline;
}

.about-deps-list {
    margin: 2px 0 0 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.about-deps-list li {
    font-size: 13px;
    line-height: 1.4;
    color: var(--text-color);
}

.about-modal-actions {
    display: flex;
    justify-content: flex-end;
}

.about-modal-actions button {
    border: 1px solid var(--accent-color);
    border-radius: 6px;
    padding: 8px 12px;
    background: var(--bg-color);
    color: var(--accent-color);
    cursor: pointer;
}

.stats-modal-content {
    max-width: 760px;
}

.stats-modal-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.stats-subtitle {
    color: var(--muted-text-color);
    font-size: 13px;
}

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

.stats-filter-row label {
    font-size: 13px;
    font-weight: 600;
}

#stats-range-select {
    min-width: 150px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
    padding: 6px 8px;
}

.stats-kpi-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.stats-kpi-card {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    padding: 10px;
    min-height: 70px;
}

.stats-kpi-label {
    color: var(--muted-text-color);
    font-size: 12px;
    margin-bottom: 6px;
}

.stats-kpi-label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.stats-help-btn {
    width: 24px;
    height: 24px;
    min-width: 24px;
    min-height: 24px;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: var(--bg-color);
    color: var(--muted-text-color);
    font-size: 12px;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.stats-help-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.stats-kpi-value {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.15;
}

.stats-learning-note {
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--muted-text-color);
    font-size: 12px;
    padding: 8px 10px;
}

#stats-daily-heading {
    font-size: 15px;
}

.stats-daily-empty {
    color: var(--muted-text-color);
    font-size: 13px;
}

.stats-daily-table-wrap {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    max-height: 280px;
    overflow: auto;
}

.stats-daily-table {
    width: 100%;
    border-collapse: collapse;
}

.stats-daily-table th,
.stats-daily-table td {
    font-size: 12px;
    text-align: left;
    padding: 8px 10px;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.stats-daily-table th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: var(--sidebar-bg);
}

.stats-daily-table tbody tr:last-child td {
    border-bottom: none;
}

.stats-modal-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.stats-modal-actions button {
    border: 1px solid var(--accent-color);
    border-radius: 6px;
    padding: 8px 12px;
    background: var(--bg-color);
    color: var(--accent-color);
    cursor: pointer;
}

.stats-modal-actions button.danger {
    border-color: #b63c2f;
    color: #b63c2f;
}

@media (max-width: 500px) {
    #book-modal {
        align-items: flex-start;
        padding-top: 8px;
        padding-bottom: 8px;
    }

    #book-modal .modal-content {
        width: calc(100% - 16px);
        max-height: calc(100vh - 16px);
        padding: 16px 12px;
    }

    .modal-body {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    #book-modal .modal-body {
        align-items: stretch;
        text-align: left;
        gap: 12px;
        overflow: auto;
    }

    #modal-cover,
    .modal-fallback {
        width: 140px;
        height: 210px;
        margin: 0 auto;
    }

    .modal-stats-grid {
        grid-template-columns: 1fr;
    }

    .highlight-modal-content {
        width: calc(100% - 24px);
        padding: 18px 14px;
    }

    .highlight-modal-actions {
        justify-content: stretch;
    }

    .highlight-modal-actions button {
        flex: 1;
    }

    .bookmark-modal-content {
        width: calc(100% - 24px);
        padding: 18px 14px;
    }

    .bookmark-modal-actions {
        justify-content: stretch;
    }

    .bookmark-modal-actions button {
        flex: 1;
    }

    .confirm-modal-content {
        width: calc(100% - 24px);
        padding: 18px 14px;
    }

    .confirm-modal-actions {
        justify-content: stretch;
    }

    .confirm-modal-actions button {
        flex: 1;
    }

    .dictionary-modal-content {
        width: calc(100% - 24px);
        padding: 18px 14px;
    }

    .dictionary-modal-results {
        max-height: min(50vh, 420px);
    }

    .dictionary-modal-actions {
        justify-content: stretch;
    }

    .dictionary-modal-actions button {
        width: 100%;
        min-height: 38px;
    }

    .import-plan-modal-content {
        width: calc(100% - 20px);
        padding: 16px 12px;
    }

    #import-plan-title {
        font-size: 24px;
    }

    .import-plan-actions-row {
        flex-direction: column;
    }

    .import-plan-actions-row button {
        width: 100%;
        min-height: 36px;
    }

    .import-plan-conflicts {
        max-height: 44dvh;
    }

    .import-plan-row {
        grid-template-columns: 1fr;
    }

    .import-plan-choice {
        width: 100%;
    }

    .import-plan-footer {
        justify-content: stretch;
    }

    .import-plan-footer button {
        flex: 1;
        min-height: 38px;
    }

    .about-modal-content {
        width: calc(100% - 24px);
        padding: 18px 14px;
    }

    .stats-modal-content {
        width: calc(100% - 24px);
        padding: 18px 14px;
    }

    .stats-kpi-grid {
        grid-template-columns: 1fr;
    }

    .stats-help-btn {
        width: 28px;
        height: 28px;
        min-width: 28px;
        min-height: 28px;
        font-size: 13px;
    }

    .stats-modal-actions {
        justify-content: stretch;
    }

    .stats-modal-actions button {
        width: 100%;
        min-height: 38px;
    }

    #about-logo {
        max-height: 88px;
    }

    .about-modal-actions {
        justify-content: stretch;
    }

    .about-modal-actions button {
        flex: 1;
    }
}