/* Bookshelf styles integrated with Arken project structure */

/* Upload Modal (glassmorphism style to match history/marketplace) */
.modal { position: fixed; inset: 0; z-index: 1100; display: none; }
.modal.show { display: block; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.35); backdrop-filter: blur(2px); }
.modal-content {
    position: relative; max-width: 720px; margin: 8vh auto; border-radius: 16px;
    background: rgba(255,255,255,0.6);
    border: 1px solid rgba(224,224,224,0.6);
    box-shadow: 0 24px 48px rgba(0,0,0,0.12);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}

/* Floating + draggable modal behavior */
.modal-floating {
    position: fixed;
    top: 12%;
    left: 50%;
    transform: translateX(-50%);
    margin: 0;
}
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid rgba(224,224,224,0.5);
    cursor: move;
    user-select: none;
}

/* Resizable modal enhancements */
.modal-resizable { min-width: 480px; min-height: 320px; }
.resize-handle {
    position: absolute; right: 8px; bottom: 8px; width: 14px; height: 14px;
    cursor: se-resize; border-radius: 3px;
    background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(200,200,200,0.5));
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.08);
}
.modal-body { padding: 20px; }
.modal-close { border: none; background: transparent; font-size: 22px; cursor: pointer; line-height: 1; }

/* Upload form layout */
.form-row { margin-bottom: 12px; display: flex; gap: 12px; }
.form-row.two-cols > input { flex: 1; }
input[type="text"], input[type="number"], input[type="file"] { width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid rgba(218,220,224,0.7); background: rgba(255,255,255,0.7); }
.btn.primary { padding: 10px 16px; border-radius: 12px; border: 1px solid rgba(26,115,232,0.5); background: rgba(26,115,232,0.12); color: #1a73e8; cursor: pointer; }
.btn.primary:hover { background: rgba(26,115,232,0.18); }
.status { margin-left: 10px; font-size: 14px; color: #5f6368; }

/* Reader modal sizing override */
#reader-modal .modal-content { max-width: 960px; }
#reader-modal .modal-body { height: 80vh; padding: 0; }

/* Bookshelf visual shell and side-menu behavior (canonical block) */
body.bookshelf-page {
    background: #f5f1ed;
    color: #2b2b2b;
}

body.bookshelf-page.bookshelf-menu-open {
    overflow: hidden;
}

body.bookshelf-page .social-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: linear-gradient(135deg, #1f2933 0%, #2f261f 48%, #5a3a25 100%);
    position: relative;
}

body.bookshelf-page .top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
    padding: 0 20px;
    background: rgba(30, 24, 19, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(139, 99, 76, 0.34);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
    z-index: 999;
}

body.bookshelf-page .nav-left {
    display: flex;
    align-items: center;
    gap: 20px;
    flex: 1;
}

body.bookshelf-page .nav-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

body.bookshelf-page .desktop-nav {
    display: flex;
    align-items: center;
    gap: 15px;
}

body.bookshelf-page .logo {
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    white-space: nowrap;
    transition: all 0.3s ease;
}

body.bookshelf-page .logo:hover {
    transform: scale(1.05);
    text-shadow: 0 0 20px rgba(212, 165, 116, 0.45);
}

body.bookshelf-page .search-bar {
    display: flex;
    align-items: center;
    max-width: 400px;
    flex: 1;
    padding: 8px 16px;
    border-radius: 25px;
    background: rgba(45, 35, 25, 0.62);
    border: 1px solid rgba(139, 99, 76, 0.42);
}

body.bookshelf-page .search-bar input {
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    width: 100%;
    padding: 0 10px;
}

body.bookshelf-page .search-bar input::placeholder {
    color: rgba(255, 255, 255, 0.58);
}

body.bookshelf-page .search-bar button {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.78);
    font-size: 18px;
    padding: 0;
}

body.bookshelf-page .search-bar button:hover {
    color: #d4a574;
    transform: scale(1.1);
}

body.bookshelf-page .nav-btn,
body.bookshelf-page .mobile-menu-btn {
    background: rgba(139, 99, 76, 0.2);
    border: 1px solid rgba(139, 99, 76, 0.42);
    border-radius: 8px;
    color: #fff;
    padding: 10px 14px;
    transition: all 0.3s ease;
}

body.bookshelf-page .mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 40px;
    height: 40px;
    background: rgba(139, 99, 76, 0.2);
    border: 1px solid rgba(139, 99, 76, 0.4);
    border-radius: 8px;
    cursor: pointer;
    padding: 8px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1001;
}

body.bookshelf-page .nav-btn {
    position: relative;
    cursor: pointer;
}

body.bookshelf-page .notification-badge {
    position: absolute;
    top: -6px;
    right: -6px;
    background: #e53935;
    color: #fff;
    border-radius: 10px;
    padding: 0 6px;
    font-size: 12px;
}

body.bookshelf-page .nav-btn:hover {
    background: rgba(139, 99, 76, 0.3);
    border-color: rgba(139, 99, 76, 0.62);
    transform: translateY(-2px);
}

body.bookshelf-page .mobile-menu-btn:hover {
    background: rgba(139, 99, 76, 0.3);
    border-color: rgba(139, 99, 76, 0.6);
}

body.bookshelf-page .hamburger-line {
    width: 100%;
    height: 3px;
    background: #d4a574;
    border-radius: 2px;
    transition: all 0.3s ease;
}

body.bookshelf-page .mobile-menu-btn.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

body.bookshelf-page .mobile-menu-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

body.bookshelf-page .mobile-menu-btn.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

body.bookshelf-page .user-avatar {
    width: 40px;
    height: 40px;
    border: 2px solid rgba(139, 99, 76, 0.55);
    border-radius: 50%;
    overflow: hidden;
    background: rgba(45, 35, 25, 0.8);
    padding: 0;
}

body.bookshelf-page .user-avatar:hover {
    border-color: #d4a574;
    box-shadow: 0 0 20px rgba(212, 165, 116, 0.36);
    transform: scale(1.05);
}

body.bookshelf-page .user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

body.bookshelf-page .user-menu {
    position: relative;
}

body.bookshelf-page .user-dropdown {
    position: absolute;
    right: 0;
    top: calc(100% + 10px);
    min-width: 220px;
    border-radius: 12px;
    background: rgba(30, 20, 15, 0.98);
    border: 1px solid rgba(139, 99, 76, 0.42);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    display: none;
}

body.bookshelf-page .user-dropdown.show {
    display: block;
}

body.bookshelf-page .dropdown-item {
    display: block;
    padding: 10px 12px;
    text-decoration: none;
    color: #fff;
}

body.bookshelf-page .dropdown-item:hover {
    background: rgba(139, 99, 76, 0.28);
}

body.bookshelf-page .dropdown-item.logout-btn {
    border: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    background: transparent;
    color: #ef4444;
}

body.bookshelf-page .user-dropdown hr {
    border: none;
    border-top: 1px solid rgba(139, 99, 76, 0.3);
    margin: 8px 0;
}

body.bookshelf-page .main-content {
    margin-top: 60px;
    min-height: calc(100vh - 60px);
    background: linear-gradient(135deg, #f5f1ed 0%, #ebe5df 100%);
}

body.bookshelf-page .bookshelf-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

body.bookshelf-page .header-content h1 {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 4px 0;
}

body.bookshelf-page .header-subtitle {
    font-size: 15px;
    margin: 0;
}

body.bookshelf-page .header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

body.bookshelf-page .btn-upload-book,
body.bookshelf-page .btn-secondary-book {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

body.bookshelf-page .btn-upload-book {
    border: none;
    color: #fff;
}

body.bookshelf-page .btn-secondary-book {
    border: 1px solid rgba(139, 99, 76, 0.34);
    background: rgba(255, 255, 255, 0.72);
}

body.bookshelf-page .desktop-nav-container,
body.bookshelf-page .desktop-only.desktop-nav-container {
    background: linear-gradient(135deg, rgba(45, 35, 25, 0.91) 0%, rgba(30, 20, 15, 0.92) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1.5px solid rgba(139, 99, 76, 0.42);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.45);
    border-radius: 12px;
    overflow-y: auto;
    overflow-x: hidden;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

body.bookshelf-page .desktop-only.desktop-nav-container::-webkit-scrollbar {
    width: 0;
    background: transparent;
}

body.bookshelf-page .desktop-only.desktop-nav-container:hover,
body.bookshelf-page .desktop-only.desktop-nav-container:focus-within {
    scrollbar-width: thin;
    scrollbar-color: rgba(212, 165, 116, 0.55) transparent;
}

body.bookshelf-page .desktop-only.desktop-nav-container:hover::-webkit-scrollbar,
body.bookshelf-page .desktop-only.desktop-nav-container:focus-within::-webkit-scrollbar {
    width: 4px;
}

body.bookshelf-page .desktop-only.desktop-nav-container:hover::-webkit-scrollbar-thumb,
body.bookshelf-page .desktop-only.desktop-nav-container:focus-within::-webkit-scrollbar-thumb {
    background: rgba(212, 165, 116, 0.55);
    border-radius: 999px;
}

body.bookshelf-page .desktop-only.desktop-nav-container:hover::-webkit-scrollbar-track,
body.bookshelf-page .desktop-only.desktop-nav-container:focus-within::-webkit-scrollbar-track {
    background: transparent;
}

body.bookshelf-page .mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 998;
}

body.bookshelf-page .mobile-menu-overlay.active,
body.bookshelf-page .mobile-menu-overlay.show {
    display: block;
}

body.bookshelf-page .mobile-close-btn {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 32px;
    cursor: pointer;
    padding: 5px;
    line-height: 1;
}

body.bookshelf-page .mobile-menu-content {
    background: rgba(139, 99, 76, 0.1);
    border: 1px solid rgba(139, 99, 76, 0.28);
    border-radius: 20px;
    padding: 20px;
    gap: 30px;
    height: 100%;
    overflow: visible;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04), 0 8px 24px rgba(0, 0, 0, 0.18);
}

body.bookshelf-page .sidebar-header-nav h2 {
    background: linear-gradient(135deg, #d4a574 0%, #f5d9b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 24px;
    font-weight: 300;
    margin: 0;
}

body.bookshelf-page .mobile-menu-section h4 {
    color: rgba(212, 165, 116, 0.72);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 16px;
}

body.bookshelf-page .mobile-menu-items {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

body.bookshelf-page .mobile-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.9);
    background: transparent;
    border: 1px solid transparent;
    padding: 12px 16px;
}

body.bookshelf-page .mobile-menu-item:hover {
    background: rgba(139, 99, 76, 0.22);
    border-color: rgba(212, 165, 116, 0.36);
    transform: translateX(4px);
}

body.bookshelf-page .mobile-menu-item.active {
    background: rgba(139, 99, 76, 0.34);
    border-color: rgba(212, 165, 116, 0.5);
    color: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

body.bookshelf-page .user-info-sidebar {
    background: rgba(139, 99, 76, 0.15);
    border: 1px solid rgba(212, 165, 116, 0.22);
    border-radius: 12px;
    padding: 15px;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.035);
}

body.bookshelf-page .user-info-text h4 {
    color: #fff;
}

body.bookshelf-page .user-info-text p {
    color: rgba(255, 255, 255, 0.72);
}

body.bookshelf-page .bookshelf-header {
    background: #fff;
    border-bottom: 1px solid #d4c4b4;
    padding: 32px 24px 24px;
}

body.bookshelf-page .header-content h1 {
    color: #3d2817;
}

body.bookshelf-page .header-subtitle {
    color: #8b634c;
}

body.bookshelf-page .btn-upload-book {
    background: #8b634c;
    box-shadow: 0 2px 8px rgba(139, 99, 76, 0.3);
}

body.bookshelf-page .btn-upload-book:hover {
    background: #6d4a36;
    box-shadow: 0 4px 12px rgba(139, 99, 76, 0.4);
}

body.bookshelf-page .btn-secondary-book {
    border-color: rgba(139, 99, 76, 0.34);
    color: #5a3a25;
}

body.bookshelf-page .filter-section {
    padding: 24px 24px 0;
}

body.bookshelf-page .filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

body.bookshelf-page .filter-btn {
    padding: 8px 16px;
    border: 1px solid #dadce0;
    border-radius: 20px;
    background-color: #f8f9fa;
    color: #3c4043;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

body.bookshelf-page .filter-btn:hover {
    border-color: #c5c5c5;
    background-color: #e8eaed;
}

body.bookshelf-page .filter-btn.active {
    background-color: #f5ebe0;
    border-color: #8b634c;
    color: #5a3a25;
    font-weight: 700;
}

body.bookshelf-page .books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 20px;
    padding: 0 24px;
}

body.bookshelf-page .book-card {
    background-color: #fffef6;
    border: 1px solid #ddd0c2;
    border-radius: 12px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-color: #ddd0c2;
    box-shadow: 0 4px 14px rgba(61, 40, 23, 0.08);
}

body.bookshelf-page .book-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(61, 40, 23, 0.16);
}

body.bookshelf-page .book-source,
body.bookshelf-page .book-author,
body.bookshelf-page .book-year {
    color: #6d5746;
}

body.bookshelf-page .book-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: #3d2817;
    text-decoration: none;
    margin: 6px 0;
}

body.bookshelf-page .book-title:hover {
    text-decoration: underline;
}

body.bookshelf-page .book-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

body.bookshelf-page .book-actions .btn {
    border: 1px solid rgba(139, 99, 76, 0.35);
    background: #fff;
    color: #5a3a25;
    border-radius: 8px;
    padding: 8px 12px;
    cursor: pointer;
}

body.bookshelf-page .book-actions .btn:hover {
    background: #f5ebe0;
}

body.bookshelf-page .pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 40px;
    padding-bottom: 40px;
}

body.bookshelf-page .pagination button {
    padding: 10px 20px;
    border: 1px solid rgba(218,220,224,0.7);
    border-radius: 20px;
    background: rgba(248,249,250,0.8);
    color: #1a73e8;
    font-size: 15px;
    cursor: pointer;
}

body.bookshelf-page .pagination button:disabled {
    color: #bdc1c6;
    cursor: not-allowed;
    background-color: #f1f3f4;
}

body.bookshelf-page .loading-indicator {
    text-align: center;
    padding: 40px;
}

body.bookshelf-page .spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #8b634c;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: bookshelf-spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes bookshelf-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

body.bookshelf-page .no-books {
    text-align: center;
    color: #5f6368;
    padding: 40px;
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    body.bookshelf-page .search-bar {
        display: none;
    }

    body.bookshelf-page .mobile-menu-btn {
        display: inline-flex;
    }

    body.bookshelf-page .desktop-nav {
        display: none;
    }

    body.bookshelf-page .desktop-only {
        display: none !important;
    }

    body.bookshelf-page .mobile-close-btn {
        display: block;
    }

    body.bookshelf-page #mobile-menu {
        display: none;
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: 280px;
        height: 100dvh;
        z-index: 999;
        box-shadow: 2px 0 10px rgba(0,0,0,0.3);
        border-radius: 0;
        overflow-y: auto;
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
        touch-action: pan-y;
        -ms-overflow-style: none;
        scrollbar-width: none;
    }

    body.bookshelf-page #mobile-menu::-webkit-scrollbar {
        width: 0;
        height: 0;
        background: transparent;
    }

    body.bookshelf-page #mobile-menu:hover,
    body.bookshelf-page #mobile-menu:focus-within,
    body.bookshelf-page #mobile-menu .mobile-menu-content:hover,
    body.bookshelf-page #mobile-menu .mobile-menu-content:focus-within {
        scrollbar-width: thin;
        scrollbar-color: rgba(212, 165, 116, 0.55) transparent;
    }

    body.bookshelf-page #mobile-menu:hover::-webkit-scrollbar,
    body.bookshelf-page #mobile-menu:focus-within::-webkit-scrollbar {
        width: 4px;
        height: 4px;
    }

    body.bookshelf-page #mobile-menu:hover::-webkit-scrollbar-thumb,
    body.bookshelf-page #mobile-menu:focus-within::-webkit-scrollbar-thumb {
        background: rgba(212, 165, 116, 0.55);
        border-radius: 999px;
    }

    body.bookshelf-page #mobile-menu:hover::-webkit-scrollbar-track,
    body.bookshelf-page #mobile-menu:focus-within::-webkit-scrollbar-track {
        background: transparent;
    }

    body.bookshelf-page #mobile-menu.active,
    body.bookshelf-page #mobile-menu.show {
        display: flex;
    }

    body.bookshelf-page #mobile-menu .mobile-menu-content {
        display: flex;
        flex-direction: column;
        min-height: 0;
        height: auto;
        border-radius: 20px;
    }

    body.bookshelf-page .mobile-menu-overlay {
        top: 0;
        bottom: 0;
    }
}

@media (min-width: 769px) {
    body.bookshelf-page #mobile-menu {
        display: none !important;
    }

    body.bookshelf-page .desktop-only.desktop-nav-container {
        display: block !important;
        position: fixed;
        left: 20px;
        top: 100px;
        width: 230px;
        height: calc(100vh - 120px);
        z-index: 100;
        border-radius: 12px;
        box-sizing: border-box;
    }

    body.bookshelf-page .desktop-only.desktop-nav-container .mobile-menu-content {
        min-height: 100%;
    }

    body.bookshelf-page .main-content {
        margin-left: 290px;
    }
}