@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&family=Montserrat:wght@800&display=swap');

/* KILL LEGACY SOPDS AND FOUNDATION */
.top-bar,
.top-bar-right,
.top-bar-left,
.sopdsbg,
.title-bar,
.row {
    max-width: 100% !important;
}

.top-bar {
    display: none !important;
}

/* THEME VARIABLES */
:root {
    --bg-main: #0a0c10;
    --sidebar-bg: rgba(13, 16, 21, 0.8);
    --card-bg: rgba(20, 24, 32, 0.7);
    --text-main: #FFFFFF;
    --text-muted: #8E94B7;
    --accent: #2ac3ff;
    --accent-purple: #9d4edd;
    --accent-glow: 0 0 15px rgba(42, 195, 255, 0.3);
    --border: rgba(255, 255, 255, 0.08);
    --btn-bg: rgba(255, 255, 255, 0.05);
}

[data-theme="eink"] {
    --bg-main: #FFFFFF !important;
    --sidebar-bg: #FFFFFF !important;
    --card-bg: #FFFFFF !important;
    --text-main: #000000 !important;
    --text-muted: #333333 !important;
    --accent: #000000 !important;
    --accent-purple: #000000 !important;
    --accent-glow: none !important;
    --border: #000000 !important;
    --btn-bg: #FFFFFF !important;
    --search-gradient: none !important;
}

body {
    background-color: var(--bg-main) !important;
    color: var(--text-main) !important;
    font-family: 'Inter', sans-serif !important;
    margin: 0;
    padding: 0;
}

/* APP LAYOUT */
.app-wrapper {
    display: flex;
    min-height: 100vh;
    flex-direction: row;
}

.sidebar-container {
    width: 280px;
    background-color: var(--sidebar-bg);
    backdrop-filter: blur(15px);
    border-right: 1px solid var(--border);
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.main-content {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
}

/* FOOTER REMOVAL */
.eink-footer,
.callout.secondary {
    display: none !important;
}

/* SIDEBAR STATS */
.sidebar-stats {
    margin-top: auto;
    padding-top: 25px;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.sidebar-stats h5 {
    font-size: 0.8rem;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 12px;
    font-weight: 800;
    letter-spacing: 0.5px;
}

.sidebar-stats p {
    margin: 4px 0;
    line-height: 1.4;
}

.sidebar-stats b {
    color: var(--text-main);
    font-weight: 600;
}

[data-theme="eink"] .sidebar-stats {
    display: none !important;
}

@media (max-width: 800px) {
    .sidebar-stats {
        display: none !important;
    }
}

/* RESPONSIVE & EINK LAYOUT changes */
@media (max-width: 800px) {
    .app-wrapper {
        flex-direction: column;
    }

    .sidebar-container {
        width: 100%;
        border-right: none;
        border-bottom: 2px solid var(--border);
        padding: 15px;
        box-sizing: border-box;
    }

    .brand-header {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 15px;
        margin-bottom: 15px !important;
    }

    .brand-header a {
        flex: 0 0 120px;
    }

    .brand-header .auth-box {
        margin-top: 0;
        flex: 1;
    }

    .vailib-nav-menu {
        flex-direction: row !important;
        flex-wrap: nowrap !important;
        overflow-x: auto !important;
        padding-bottom: 10px;
        -webkit-overflow-scrolling: touch;
        gap: 8px !important;
    }

    .vailib-nav-menu .nav-item {
        width: auto !important;
        flex: 0 0 auto !important;
    }

    .vailib-nav-menu .nav-btn {
        padding: 8px 12px !important;
        font-size: 0.85rem;
        white-space: nowrap;
    }

    .main-content {
        padding: 15px;
    }
}

[data-theme="eink"] .app-wrapper {
    flex-direction: column;
}

[data-theme="eink"] .sidebar-container {
    width: 100%;
    border-right: none;
    border-bottom: 2px solid #000;
    backdrop-filter: none;
}

[data-theme="eink"] .main-content {
    padding: 15px;
}

/* BRANDING */
.vailib-brand {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: 2rem;
    color: var(--accent);
    text-shadow: var(--accent-glow);
    margin: 0;
}

[data-theme="eink"] .vailib-brand {
    font-size: 2.2rem;
    border: 3px solid #000;
    padding: 8px;
    text-align: center;
    color: #000;
    text-shadow: none;
    background: #fff;
    margin-bottom: 15px !important;
    border-radius: 0 !important;
    display: inline-block;
}

.auth-box {
    margin-top: 5px;
    width: 100%;
}

.auth-btn {
    display: block;
    width: 100%;
    text-align: center;
    padding: 10px 15px;
    border-radius: 8px;
    background: var(--card-bg);
    color: var(--text-main);
    text-decoration: none;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    font-weight: 600;
    box-sizing: border-box;
}

.auth-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
    transform: translateY(-2px);
}

[data-theme="eink"] .auth-box {
    text-align: center;
    margin-bottom: 15px;
    width: 100%;
}

[data-theme="eink"] .auth-btn {
    border: 3px solid #000 !important;
    border-radius: 0 !important;
    color: #000 !important;
    background: #fff !important;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.1rem !important;
    font-weight: 800 !important;
    text-transform: uppercase;
    box-shadow: none !important;
}

[data-theme="eink"] .auth-btn:hover {
    background: #000 !important;
    color: #fff !important;
    transform: none;
}

/* SEARCH & TABS */
.comfort-search-wrapper {
    background: transparent;
    padding: 0;
    margin-top: 10px;
}

[data-theme="eink"] .comfort-search-wrapper {
    border: none !important;
    border-radius: 0;
    background: transparent !important;
}

.search-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.search-tab {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
    padding: 5px;
}

.search-tab.active {
    color: var(--text-main);
    border-bottom: 2px solid var(--accent);
}

[data-theme="eink"] .search-tab {
    border: 1px solid #000;
    padding: 10px 15px;
    color: #000;
    font-weight: 800;
    flex-grow: 1;
}

[data-theme="eink"] .search-tab.active {
    background: #000;
    color: #fff;
    border-bottom: 3px solid #000;
}

.modern-search-form {
    position: relative;
    border-radius: 30px;
    padding: 2px;
    background: var(--search-gradient, linear-gradient(90deg, var(--accent) 0%, var(--accent-purple) 100%));
    box-shadow: 0 0 15px rgba(157, 78, 221, 0.3);
}

.modern-search-form .input-group-field {
    background: var(--bg-main) !important;
    border: none !important;
    color: var(--text-main) !important;
    border-radius: 28px 0 0 28px !important;
    padding: 20px 25px !important;
    box-shadow: none !important;
    height: 100%;
}

[data-theme="eink"] .modern-search-form .input-group-field {
    border: 1px solid #000 !important;
    border-right: none !important;
    border-radius: 0 !important;
    font-weight: 800;
    font-size: 1.1rem;
    color: #000 !important;
    background: #fff !important;
}

.modern-search-form .search-submit-btn {
    background: var(--bg-main) !important;
    color: var(--text-muted) !important;
    border-radius: 0 28px 28px 0 !important;
    border: none !important;
    padding: 0 25px !important;
}

.modern-search-form .search-submit-btn:hover {
    color: var(--accent) !important;
}

[data-theme="eink"] .modern-search-form .search-submit-btn {
    background: #000 !important;
    color: #fff !important;
    border: 1px solid #000 !important;
    border-radius: 0 !important;
    font-size: 1.1rem;
}

/* SIDEBAR MENU */
.vailib-nav-menu {
    list-style: none;
    margin: 20px 0 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

[data-theme="eink"] .vailib-nav-menu {
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
    margin-top: 0;
}

.nav-item {
    width: 100%;
}

[data-theme="eink"] .nav-item {
    width: auto;
    flex: 1 1 auto;
}

.nav-btn {
    display: block;
    padding: 12px 15px;
    border-radius: 8px;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    border: 1px solid transparent;
    transition: all 0.2s;
}

.nav-item .active,
.nav-btn:hover {
    background: var(--btn-bg);
    color: var(--text-main);
    border: 1px solid var(--border);
}

[data-theme="eink"] .nav-btn {
    border: 2px solid #000 !important;
    border-radius: 0 !important;
    color: #000 !important;
    text-transform: uppercase;
    font-size: 1.2rem;
    text-align: center;
    background: #fff;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif !important;
    line-height: 1.3 !important;
    margin-bottom: 5px;
}

[data-theme="eink"] .nav-item .active,
[data-theme="eink"] .nav-btn:hover {
    background: #000 !important;
    color: #fff !important;
}

[data-theme="eink"] .nav-links {
    display: flex !important;
    flex-wrap: wrap !important;
    justify-content: center !important;
    gap: 8px !important;
    margin: 15px 0 !important;
}

[data-theme="eink"] .nav-links a {
    border: 2px solid #000 !important;
    background: #fff !important;
    color: #000 !important;
    padding: 8px 12px !important;
    text-decoration: none !important;
    font-weight: 800 !important;
    text-transform: uppercase !important;
    font-size: 0.9rem !important;
    margin: 0 !important;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif !important;
    line-height: 1.4 !important;
}

[data-theme="eink"] .nav-links a:hover {
    background: #000 !important;
    color: #fff !important;
}

[data-theme="eink"] .eink-breadcrumbs {
    display: flex !important;
    flex-wrap: wrap !important;
    justify-content: flex-start !important;
    gap: 8px !important;
    padding: 8px 0 !important;
    border-bottom: none !important;
    margin-bottom: 15px !important;
    font-size: 0.85rem !important;
}

[data-theme="eink"] .eink-breadcrumbs .crumb a {
    display: inline-block !important;
    border: 2px solid #000 !important;
    background: #fff !important;
    color: #000 !important;
    padding: 8px 12px !important;
    text-decoration: none !important;
    font-weight: 800 !important;
    text-transform: uppercase !important;
    font-size: 0.9rem !important;
    margin: 0 !important;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif !important;
    line-height: 1.4 !important;
}

[data-theme="eink"] .eink-breadcrumbs .crumb a:hover {
    background: #000 !important;
    color: #fff !important;
}

[data-theme="eink"] .eink-breadcrumbs .crumb span {
    display: inline-block !important;
    border: 2px solid #000 !important;
    background: #eee !important;
    color: #000 !important;
    padding: 8px 12px !important;
    font-weight: 800 !important;
    text-transform: uppercase !important;
    font-size: 0.9rem !important;
    margin: 0 !important;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif !important;
    line-height: 1.4 !important;
}

[data-theme="eink"] .eink-breadcrumbs .separator {
    display: none !important;
}

/* THEME TOGGLE BUTTON LOGIC */
[data-theme="premium"] .premium-icon {
    display: block;
}

[data-theme="premium"] .eink-icon {
    display: none !important;
}

[data-theme="eink"] .premium-icon {
    display: none !important;
}

[data-theme="eink"] .eink-icon {
    display: block !important;
}

.theme-btn {
    border: 2px solid #fff !important;
    color: #fff !important;
    background: #000 !important;
    text-align: center;
    box-shadow: none !important;
    font-weight: 700;
}

[data-theme="eink"] .theme-btn {
    border: 3px solid #000 !important;
    background: #fff !important;
    color: #000 !important;
    box-shadow: 3px 3px 0 #000 !important;
    padding: 15px !important;
    font-weight: 900;
}

/* --- RECENT BOOKS GRID --- */
.recent-books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 25px;
    padding-bottom: 40px;
}

[data-theme="eink"] .recent-books-grid {
    display: block;
    text-align: center;
}

/* BOOK CARD PREMIUM STYLING */
.book-card {
    background: var(--card-bg) !important;
    border: 1px solid var(--border) !important;
    border-radius: 16px !important;
    padding: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.book-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent) !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 15px rgba(0, 225, 255, 0.2);
}

.cover-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 2 / 2.5;
    overflow: hidden;
    margin-bottom: 0px;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
}

.book-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

/* Modern placeholder cover */
.modern-placeholder {
    width: 100%;
    height: 100%;
    display: none; /* Hidden by default, shown by checkEinkCover or similar logic */
    flex-direction: column;
    background: #0d1015;
    position: relative;
    box-sizing: border-box;
    border: 2px solid transparent;
    border-image: linear-gradient(135deg, #9d4edd 0%, #2ac3ff 100%) 1;
    padding: 20px;
    text-align: center;
    justify-content: flex-end; /* Push text to bottom */
}

.modern-placeholder .triangle-icon {
    position: absolute;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    border-left: 45px solid transparent;
    border-right: 45px solid transparent;
    border-bottom: 75px solid #9d4edd; /* Primary color for triangle */
    display: flex;
    justify-content: center;
}

.modern-placeholder .triangle-icon::after {
    content: '';
    position: absolute;
    top: 6px;
    left: -38px;
    border-left: 38px solid transparent;
    border-right: 38px solid transparent;
    border-bottom: 64px solid #0d1015;
}

.modern-placeholder .m-plt-content {
    border-top: 1px solid rgba(157, 78, 221, 0.5);
    padding-top: 15px;
    width: 100%;
    margin-bottom: 15px;
}

.modern-placeholder .m-plt-title {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.2;
}

.modern-placeholder .m-plt-author {
    color: #2ac3ff;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
}

.book-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 15px;
}

.book-title {
    margin: 0 !important;
    font-size: 1.1rem !important;
    font-weight: 700 !important;
    line-height: 1.3 !important;
    color: var(--text-main) !important;
}

.book-author {
    margin: 6px 0 0 0 !important;
    font-size: 0.9rem !important;
    color: var(--text-muted) !important;
    font-weight: 400 !important;
}

/* Task 4: Reduced border weights for faster rendering on older E-Ink devices */
[data-theme="eink"] .book-card {
    display: inline-block;
    vertical-align: top;
    text-align: left;
    width: 200px;
    margin: 10px;
    border: 2px solid #000 !important;
    border-radius: 0 !important;
    background: #fff !important;
    padding: 8px;
    box-sizing: border-box;
}

/* Swap all generic fallback covers to the white e-ink cover in eink mode */
[data-theme="eink"] img[src^="/static/images/cover"] {
    content: url("/static/images/cover2.jpg");
}

/* Task 2: Universal grayscale for ALL images in E-Ink mode */
[data-theme="eink"] img {
    filter: grayscale(1) contrast(1.15) !important;
}

/* Task 3: Folder cover background — must be white, not dark grey */
[data-theme="eink"] .cover-wrapper {
    background: #fff !important;
}

@media (max-width: 600px) {
    .recent-books-grid {
        grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
        gap: 15px;
    }
}

/* Index Lists (Letters & Alphabets) */
.index-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
    padding-bottom: 30px;
}

.index-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: all 0.3s ease;
    text-decoration: none;
    color: var(--text-main);
}

.index-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4), var(--accent-glow);
}

.index-letter {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 10px;
}

.index-count {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* E-Ink Overrides for Index/Genre Cards */
[data-theme="eink"] .index-grid {
    display: block;
    text-align: center;
}

[data-theme="eink"] .index-card {
    display: inline-block;
    vertical-align: top;
    width: 200px;
    margin: 10px;
    border: 3px solid #000 !important;
    border-radius: 0 !important;
    background: #fff !important;
    color: #000 !important;
    padding: 20px 15px;
    height: auto;
    min-height: 110px;
    box-shadow: none;
}

[data-theme="eink"] .index-card:hover {
    background: #000 !important;
    color: #fff !important;
    transform: none;
    box-shadow: none !important;
}

[data-theme="eink"] .index-letter {
    color: inherit !important;
    font-weight: 800;
    word-break: break-word;
    overflow-wrap: break-word;
}

[data-theme="eink"] .index-card:hover .index-letter {
    color: #fff !important;
}

[data-theme="eink"] .index-count {
    color: inherit !important;
    font-weight: 600;
    margin-top: auto;
    padding-top: 10px;
}

/* Catalog List View */
.catalog-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 15px;
    padding-bottom: 30px;
}

[data-theme="eink"] .catalog-list {
    display: block;
    text-align: left;
}

.catalog-item {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    text-decoration: none;
    transition: all 0.2s ease;
    min-height: 100px;
}

[data-theme="eink"] .catalog-item {
    display: inline-block;
    vertical-align: top;
    text-align: left;
    width: 200px;
    margin: 10px;
    border: 3px solid #000 !important;
    border-radius: 0 !important;
    background: #fff !important;
    color: #000 !important;
    box-sizing: border-box;
}

[data-theme="eink"] .catalog-item:hover {
    background: #000 !important;
    color: #fff !important;
    transform: none;
    box-shadow: none !important;
}

.catalog-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4), var(--accent-glow);
}

.catalog-icon {
    margin-right: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
}

.catalog-icon img {
    width: 32px;
    height: auto;
}

.catalog-details {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.catalog-title {
    color: var(--text-main);
    font-weight: 600;
    font-size: 1.05rem;
}

.catalog-authors {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 4px;
}

.catalog-format {
    background: var(--accent);
    color: var(--bg-main);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-left: 15px;
}

/* Pagination */
.pagination {
    display: flex;
    list-style: none;
    gap: 10px;
    justify-content: center;
    padding: 20px 0;
    margin: 0;
}

.pagination li a,
.pagination li.current {
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 8px 15px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s;
}

.pagination li a:hover {
    border-color: var(--accent);
    box-shadow: var(--accent-glow);
}

.pagination li.current {
    background: var(--accent);
    color: var(--bg-main);
    border-color: var(--accent);
    font-weight: 800;
}

.pagination li.disabled {
    opacity: 0.5;
    pointer-events: none;
}

[data-theme="eink"] .pagination li a,
[data-theme="eink"] .pagination li.current {
    background: #fff;
    color: #000;
    border: 3px solid #000;
    border-radius: 0;
}

[data-theme="eink"] .pagination li.current {
    background: #000;
    color: #fff;
}

/* Breadcrumbs */
.modern-breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    background: var(--card-bg);
    padding: 15px 20px;
    border-radius: 12px;
    border: 1px solid var(--border);
    margin-bottom: 20px;
    font-weight: 600;
}

.modern-breadcrumbs .crumb {
    color: var(--text-main);
}

.modern-breadcrumbs a {
    color: var(--accent);
    text-decoration: none;
}

.modern-breadcrumbs .separator {
    color: var(--text-muted);
    margin: 0 10px;
}

[data-theme="eink"] .modern-breadcrumbs {
    background: #fff;
    border: 4px solid #000;
    border-radius: 0;
    color: #000;
}

[data-theme="eink"] .modern-breadcrumbs a {
    color: #000;
    text-decoration: underline;
}

/* Book Item (List) */
.modern-book-item {
    flex-direction: row;
    gap: 20px;
    padding: 20px !important;
    margin-bottom: 15px;
}

.modern-book-item .book-cover {
    width: 120px;
    flex-shrink: 0;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 2 / 3;
    background: var(--bg-main);
}

.modern-book-item .book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modern-book-item .book-info {
    padding: 0;
    justify-content: flex-start;
}

.modern-book-item .book-title {
    font-size: 1.3rem !important;
    margin-bottom: 10px !important;
}

.modern-book-item .book-meta p {
    margin: 4px 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.modern-book-item .book-meta p a {
    color: var(--accent);
    text-decoration: none;
}

.modern-book-item .book-meta strong {
    color: var(--text-main);
}

.modern-book-item .book-actions {
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.modern-book-item .action-btn {
    background: var(--btn-bg);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    text-decoration: none;
    transition: all 0.2s;
}

.modern-book-item .action-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.modern-book-item .read-btn {
    background: var(--accent);
    color: var(--bg-main);
    border-color: var(--accent);
    font-weight: 800;
}

.modern-book-item .read-btn:hover {
    background: transparent;
    color: var(--accent);
    box-shadow: var(--accent-glow);
}

.modern-book-item .book-annotation {
    margin-top: 15px;
    font-size: 0.9rem;
    color: var(--text-muted);
    border-top: 1px dashed var(--border);
    padding-top: 15px;
}

[data-theme="eink"] .modern-book-item {
    border: 4px solid #000 !important;
}

[data-theme="eink"] .modern-book-item .action-btn {
    border: 2px solid #000;
    border-radius: 0;
    color: #000;
    background: #fff;
}

[data-theme="eink"] .modern-book-item .read-btn {
    background: #000;
    color: #fff;
}

[data-theme="eink"] .modern-book-item .book-meta strong {
    color: #000;
}

/* Auth Card */
.auth-container {
    display: flex;
    justify-content: center;
    padding: 40px 20px;
}

.modern-auth-card {
    width: 100%;
    max-width: 400px;
    padding: 40px !important;
}

.modern-auth-card .auth-title {
    text-align: center;
    color: var(--accent);
    margin-bottom: 30px;
    font-size: 1.8rem;
    text-shadow: var(--accent-glow);
    font-weight: 800;
}

.modern-auth-card .form-group {
    margin-bottom: 20px;
}

.modern-auth-card label {
    display: block;
    color: var(--text-muted);
    margin-bottom: 8px;
    font-weight: 600;
}

.modern-auth-card .modern-input {
    width: 100%;
    background: var(--bg-main) !important;
    border: 1px solid var(--border) !important;
    color: var(--text-main) !important;
    padding: 12px 15px !important;
    border-radius: 8px !important;
    box-shadow: none !important;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

.modern-auth-card .modern-input:focus {
    border-color: var(--accent) !important;
    box-shadow: var(--accent-glow) !important;
    outline: none;
}

.modern-auth-card .modern-btn {
    width: 100%;
    background: var(--accent);
    color: var(--bg-main);
    border: none;
    padding: 15px;
    border-radius: 8px;
    font-weight: 800;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.modern-auth-card .modern-btn:hover {
    box-shadow: 0 0 20px rgba(42, 195, 255, 0.4);
    transform: translateY(-2px);
}

[data-theme="eink"] .modern-auth-card {
    border: 4px solid #000 !important;
    background: #fff !important;
    padding: 30px !important;
    display: flex !important;
    flex-direction: column !important;
    width: 100% !important;
    max-width: 500px !important;
}

[data-theme="eink"] .modern-auth-card .auth-title {
    color: #000 !important;
    text-shadow: none !important;
    font-size: 2.2rem !important;
    margin-bottom: 40px !important;
    text-align: center !important;
}

[data-theme="eink"] .modern-auth-card .form-group {
    margin-bottom: 35px !important;
    width: 100% !important;
}

[data-theme="eink"] .modern-auth-card label {
    display: block !important;
    font-size: 1.5rem !important;
    color: #000 !important;
    margin-bottom: 15px !important;
    font-weight: 800 !important;
    text-align: left !important;
}

[data-theme="eink"] .modern-auth-card .modern-input {
    background: #fff !important;
    border: 3px solid #000 !important;
    color: #000 !important;
    border-radius: 0 !important;
    padding: 18px 20px !important;
    font-size: 1.5rem !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
}

[data-theme="eink"] .modern-auth-card .modern-btn {
    background: #000 !important;
    color: #fff !important;
    border: 1px solid #000 !important;
    border-radius: 0 !important;
    padding: 22px !important;
    font-size: 1.6rem !important;
    font-weight: 900 !important;
    width: 100% !important;
    text-transform: uppercase !important;
}

/* ===== WELCOME SCREEN (guest landing) ===== */
.welcome-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    padding: 40px 20px;
}

.welcome-card {
    text-align: center;
    max-width: 520px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 60px 50px;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 30px rgba(42, 195, 255, 0.08);
}

.welcome-logo {
    font-size: 4rem;
    margin-bottom: 20px;
    display: block;
}

.welcome-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-main);
    margin: 0 0 15px 0;
    line-height: 1.2;
}

.welcome-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    margin: 0 0 35px 0;
    line-height: 1.6;
}

.welcome-login-btn {
    display: inline-block;
    background: var(--accent);
    color: var(--bg-main);
    font-weight: 800;
    font-size: 1rem;
    padding: 15px 35px;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 0 20px rgba(42, 195, 255, 0.35);
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}

.welcome-login-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 35px rgba(42, 195, 255, 0.55);
    color: var(--bg-main);
}

/* E-Ink welcome */
[data-theme="eink"] .welcome-card {
    border: 3px solid #000;
    border-radius: 0;
    background: #fff;
    box-shadow: 6px 6px 0 #000;
}

[data-theme="eink"] .welcome-title {
    color: #000;
}

[data-theme="eink"] .welcome-subtitle {
    color: #000;
}

[data-theme="eink"] .welcome-login-btn {
    background: #fff !important;
    color: #000 !important;
    border: 1px solid #000 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    padding: 15px 35px;
    font-weight: 900 !important;
}

[data-theme="eink"] .welcome-login-btn:hover {
    background: #333;
    box-shadow: 2px 2px 0 #555;
    transform: none;
}

html[data-theme="eink"]::before,
html[data-theme="eink"]::after,
html[data-theme="eink"] body::before,
html[data-theme="eink"] body::after {
    display: none !important;
    content: none !important;
}

/* Kill ALL box-shadows and filters - absolute nuclear move */
html[data-theme="eink"],
html[data-theme="eink"] body,
html[data-theme="eink"] *,
html[data-theme="eink"] *::before,
html[data-theme="eink"] *::after,
html[data-theme="eink"] body::before,
html[data-theme="eink"] body::after {
    box-shadow: none !important;
    text-shadow: none !important;
    filter: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    transition: none !important;
    animation: none !important;
    background-image: none !important;
    outline: none !important;
}

/* Specific hardcoded shadow overrides */
html[data-theme="eink"] .modern-search-form,
html[data-theme="eink"] .book-card,
html[data-theme="eink"] .book-card:hover,
html[data-theme="eink"] .index-card,
html[data-theme="eink"] .index-card:hover,
html[data-theme="eink"] .welcome-card,
html[data-theme="eink"] .modern-auth-card,
html[data-theme="eink"] .modern-btn,
html[data-theme="eink"] .modern-btn:hover,
html[data-theme="eink"] .welcome-login-btn,
html[data-theme="eink"] .welcome-login-btn:hover {
    box-shadow: none !important;
    background-image: none !important;
    filter: none !important;
    transform: none !important;
    background: #fff !important;
}

/* Keep grayscale on images and symbols - MUST come after the nuclear override */
html[data-theme="eink"] img,
html[data-theme="eink"] .welcome-logo,
html[data-theme="eink"] .welcome-card {
    filter: grayscale(1) contrast(1.15) !important;
}

/* Force pure black/white on ALL text */
html[data-theme="eink"],
html[data-theme="eink"] body {
    color: #000 !important;
    background-color: #fff !important;
    background-image: none !important;
}

html[data-theme="eink"] a {
    color: #000 !important;
    text-decoration: underline;
}
html[data-theme="eink"] a:visited {
    color: #555 !important;
}

/* Disable Hover for E-Ink (Touch-friendly) */
html[data-theme="eink"] .book-card:hover,
html[data-theme="eink"] .index-card:hover,
html[data-theme="eink"] .catalog-item:hover,
html[data-theme="eink"] .nav-btn:hover,
html[data-theme="eink"] .welcome-login-btn:hover {
    transform: none !important;
    background: #fff !important;
    color: #000 !important;
}

/* BUT keep color change if it is selected (active state) */
html[data-theme="eink"] .nav-item .active,
html[data-theme="eink"] .nav-btn.active,
html[data-theme="eink"] .active {
    background: #000 !important;
    color: #fff !important;
}

/* Simplify Search Section — remove outer container square */
html[data-theme="eink"] .comfort-search-wrapper {
    border: none !important;
    background: transparent !important;
    padding: 0 !important;
}

html[data-theme="eink"] .modern-search-form {
    border: 1px solid #000 !important;
    background: #fff !important;
    border-radius: 0 !important;
}

/* Breadcrumbs */
html[data-theme="eink"] .modern-breadcrumbs {
    border: 1px solid #000 !important;
    border-radius: 0 !important;
    background: #fff !important;
}

/* Pagination — minimal */
html[data-theme="eink"] .pagination li a,
html[data-theme="eink"] .pagination li.current {
    border: 1px solid #000 !important;
}

/* Welcome card — plain box */
html[data-theme="eink"] .welcome-card {
    border: 2px solid #000 !important;
    background: #fff !important;
}

/* Welcome login button — white bg style */
html[data-theme="eink"] .welcome-login-btn {
    background: #fff !important;
    color: #000 !important;
    border: 1px solid #000 !important;
}

/* Book card — thin border */
html[data-theme="eink"] .book-card {
    border: 1px solid #000 !important;
    background: #fff !important;
    padding: 10px !important;
}

/* Cover wrapper background */
html[data-theme="eink"] .cover-wrapper {
    background: #fff !important;
}

/* Theme button in eink mode */
html[data-theme="eink"] .theme-btn {
    background: #fff !important;
    color: #000 !important;
    border: 1px solid #000 !important;
    font-weight: 900;
    padding: 12px !important;
}

/* Nav buttons in eink mode - Align consistently */
html[data-theme="eink"] .vailib-nav-menu {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
    justify-content: center !important;
    margin-top: 5px !important;
}

html[data-theme="eink"] .nav-item {
    margin-top: 0 !important;
    flex: 0 1 auto !important;
}

html[data-theme="eink"] .nav-btn {
    background: #fff !important;
    color: #000 !important;
    border: 1px solid #000 !important;
    font-weight: normal !important;
    padding: 10px 15px !important;
    height: 44px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    white-space: nowrap !important;
}

html[data-theme="eink"] .nav-item .active,
html[data-theme="eink"] .nav-btn.active {
    background: #000 !important;
    color: #fff !important;
}

/* Brand */
html[data-theme="eink"] .vailib-brand {
    border: 1px solid #000 !important;
}

/* Auth form */
html[data-theme="eink"] .modern-auth-card {
    border: 1px solid #000 !important;
    background: #fff !important;
}

/* Remove fancy fonts in eink - use system serif for better legibility */
/* --- DEFINITIVE E-INK MONOCHROMATIC ULTIMATE OVERRIDE --- */
html[data-theme="eink"],
html[data-theme="eink"] body,
html[data-theme="eink"] .app-wrapper,
html[data-theme="eink"] .sidebar-container,
html[data-theme="eink"] .main-content {
    background: #ffffff !important;
    background-color: #ffffff !important;
    background-image: none !important;
    color: #000000 !important;
    box-shadow: none !important;
    filter: none !important;
    font-family: Georgia, 'Times New Roman', serif !important;
    border: none !important;
}

/* Kill ALL vignettes, glows, and pseudo-decorations globally */
html[data-theme="eink"] *,
html[data-theme="eink"] *:before,
html[data-theme="eink"] *:after,
html[data-theme="eink"]:before,
html[data-theme="eink"]:after {
    box-shadow: none !important;
    text-shadow: none !important;
    filter: none !important;
    background: none !important;
    background-image: none !important;
    background-color: transparent;
    border-color: #000 !important;
    transition: none !important;
    animation: none !important;
}

/* Specific elements that need re-enforcement of white background */
html[data-theme="eink"] body,
html[data-theme="eink"] .app-wrapper,
html[data-theme="eink"] .main-content,
html[data-theme="eink"] .sidebar-container,
html[data-theme="eink"] .content-wrapper {
    background: #fff !important;
}

/* Final search squaring & gradient kill */
html[data-theme="eink"] .modern-search-form {
    background: #fff !important;
    box-shadow: none !important;
    border: 1px solid #000 !important;
    padding: 0 !important;
}

html[data-theme="eink"] .modern-search-form .input-group-field,
html[data-theme="eink"] .modern-search-form .search-submit-btn {
    border-radius: 0 !important;
    border: 1px solid #000 !important;
}

/* Specific button style reinforcement */
html[data-theme="eink"] .nav-btn,
html[data-theme="eink"] .theme-btn,
html[data-theme="eink"] .modern-btn {
    background: #fff !important;
    color: #000 !important;
    border: 1px solid #000 !important;
    box-shadow: none !important;
}

html[data-theme="eink"] .nav-btn.active,
html[data-theme="eink"] .search-tab.active {
    background: #000 !important;
    color: #fff !important;
}

/* --- LANG SELECTOR --- */
.lang-selector-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 25px;
    padding: 15px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    width: 100%;
    box-sizing: border-box;
}
.color-lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--btn-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}
.color-lang-btn:hover, .color-lang-btn.active {
    background: var(--text-main);
    color: var(--bg-main);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px var(--accent-glow);
    border-color: var(--accent);
}
.color-lang-btn .lang-flag {
    font-size: 1.2rem;
}
.color-lang-btn .lang-code {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* E-INK LANG SELECTOR */
[data-theme="eink"] .lang-selector-container {
    display: flex !important;
    justify-content: center !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
    margin-bottom: 15px !important;
    border: none !important;
    border-bottom: 2px solid #000 !important;
    padding: 0 0 15px 0 !important;
    border-radius: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
}
.eink-lang-btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 44px !important;
    height: 44px !important;
    border: 2px solid #000 !important;
    background: #fff !important;
    color: #000 !important;
    font-weight: 800 !important;
    text-decoration: none !important;
    font-size: 14px !important;
    box-sizing: border-box !important;
    text-transform: uppercase !important;
}
.eink-lang-btn.active, .eink-lang-btn:hover {
    background: #000 !important;
    color: #fff !important;
}