/* style.css - Glassmorphic Theme & 3D Bookshelf Styles */

:root {
    --bg-main: #0c0f1d;
    --bg-gradient: radial-gradient(circle at 50% 0%, #1e2640 0%, #0c0f1d 100%);
    --bg-glass: rgba(23, 28, 48, 0.65);
    --bg-glass-hover: rgba(33, 40, 68, 0.85);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(0, 210, 255, 0.15);
    
    --text-primary: #f1f2f6;
    --text-secondary: #a4b0be;
    --text-muted: #747d8c;
    
    --color-primary: #00d2ff;
    --color-primary-dark: #0072ff;
    --color-success: #2ecc71;
    --color-danger: #ff4757;
    --color-warning: #ffa502;
    --color-info: #9b59b6;
    
    --font-thai: 'Sarabun', sans-serif;
    --font-eng: 'Outfit', sans-serif;
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font-thai);
}

body {
    background: var(--bg-main);
    background-image: var(--bg-gradient);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    font-size: 15px;
    line-height: 1.6;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 210, 255, 0.4);
}

/* App Container Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
    width: 290px;
    background: rgba(14, 18, 36, 0.85);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-right: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    padding: 24px;
    position: fixed;
    height: 100vh;
    z-index: 100;
    overflow-y: auto; /* Enable scrollbar on shorter viewports */
}

.sidebar-footer {
    margin-top: auto;
    padding-top: 20px;
    padding-bottom: 20px; /* Add extra spacing at the bottom edge */
}

.sidebar-header {
    margin-bottom: 25px;
    text-align: center;
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 15px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-eng);
    font-weight: 700;
    font-size: 26px;
    letter-spacing: 1px;
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 11px;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
    margin-top: 4px;
}

/* User Profile Panel */
.user-panel {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 15px;
    display: flex;
    flex-direction: column; /* Vertical layout */
    align-items: center; /* Center everything */
    gap: 12px;
    margin-bottom: 25px;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
    text-align: center;
}

.user-avatar {
    font-size: 45px; /* Slightly larger for vertical layout */
    color: var(--color-primary);
    text-shadow: 0 0 10px rgba(0, 210, 255, 0.3);
}

.user-info {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.user-info h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.user-dept {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    max-width: 100%;
    word-break: break-word;
}

.user-contact {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 6px;
    display: flex;
    flex-direction: column;
    gap: 3px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 8px;
    width: 100%;
    align-items: center;
}

.user-contact div {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    opacity: 0.85;
    word-break: break-all; /* Break long emails */
    max-width: 100%;
}

.user-contact i {
    width: 12px;
    text-align: center;
    color: var(--color-primary);
}

.btn-change-pwd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.07);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 6px;
    font-size: 11px;
    padding: 6px 12px;
    margin-top: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    box-sizing: border-box;
}

.btn-change-pwd:hover {
    background: rgba(0, 210, 255, 0.15);
    color: var(--color-primary);
    border-color: rgba(0, 210, 255, 0.35);
    box-shadow: 0 0 8px rgba(0, 210, 255, 0.2);
}

.btn-change-pwd i {
    font-size: 9px;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 600;
    background: rgba(0, 210, 255, 0.15);
    color: var(--color-primary);
    border: 1px solid rgba(0, 210, 255, 0.3);
    margin-top: 2px;
    font-family: var(--font-eng);
    text-transform: uppercase;
}

/* Sidebar Nav */
.sidebar-nav {
    flex-grow: 1;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: 8px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    transition: var(--transition-smooth);
}

.nav-link i {
    width: 20px;
    font-size: 16px;
    text-align: center;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(4px);
}

.nav-link.active {
    color: #fff;
    background: linear-gradient(90deg, rgba(0, 114, 253, 0.4) 0%, rgba(0, 210, 255, 0.15) 100%);
    border-left: 3px solid var(--color-primary);
    box-shadow: 0 4px 15px rgba(0, 114, 253, 0.2);
}

/* Quick User Switcher */
.switcher-panel {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: 10px;
    padding: 12px;
    margin-bottom: 20px;
}

.switcher-panel label {
    font-size: 11px;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}

.form-control {
    width: 100%;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13px;
    outline: none;
    transition: var(--transition-smooth);
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 8px rgba(0, 210, 255, 0.2);
}

/* Button styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 18px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    outline: none;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 114, 253, 0.3);
}
.btn-primary:hover {
    filter: brightness(1.1);
    box-shadow: 0 6px 20px rgba(0, 114, 253, 0.5);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, #2ecc71, #27ae60);
    color: #fff;
    box-shadow: 0 4px 15px rgba(46, 204, 113, 0.3);
}
.btn-success:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-danger {
    background: linear-gradient(135deg, #ff4757, #ff6b81);
    color: #fff;
}
.btn-danger:hover {
    filter: brightness(1.1);
}

.btn-logout {
    background: rgba(255, 71, 87, 0.1);
    color: #ff4757;
    border: 1px solid rgba(255, 71, 87, 0.2);
}
.btn-logout:hover {
    background: #ff4757;
    color: #fff;
    box-shadow: 0 4px 12px rgba(255, 71, 87, 0.3);
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
    border-radius: 6px;
}

.btn-lg {
    padding: 12px 28px;
    font-size: 16px;
}

.w-100 { width: 100%; }
.mt-4 { margin-top: 1.5rem; }
.p-0 { padding: 0 !important; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-danger { color: var(--color-danger); }
.text-xs { font-size: 12px; }

/* Main Content Area */
.main-content {
    margin-left: 290px;
    flex-grow: 1;
    padding: 30px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    min-width: 0; /* Prevents children with max-content from stretching the flexbox width */
}

/* Top Bar */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-glass);
    margin-bottom: 30px;
}

.top-bar h2 {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.5px;
}

.top-bar-actions {
    font-family: var(--font-eng);
    font-size: 13px;
    color: var(--text-secondary);
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-glass);
    padding: 6px 16px;
    border-radius: 20px;
}

/* Sections Control */
.content-section {
    display: none;
    flex-grow: 1;
}

.content-section.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

.section-intro {
    margin-bottom: 25px;
}

.section-intro h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 6px;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-intro p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Cards & Grid Layouts */
.card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 25px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    transition: var(--transition-smooth);
}

.card:hover {
    border-color: var(--border-glow);
    box-shadow: 0 12px 35px rgba(0, 210, 255, 0.08);
}

.card-header {
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.card-header h4 {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
}

.card-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 25px;
}

@media (max-width: 1100px) {
    .card-grid {
        grid-template-columns: 1fr;
    }
}

/* 3D Bookshelf CSS Styles */
.bookshelf-wrapper {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 40px;
    margin-top: 15px;
    box-shadow: inset 0 4px 20px rgba(0,0,0,0.5);
    overflow-x: auto;
    overflow-y: hidden;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.bookshelf {
    display: flex;
    flex-direction: column;
    gap: 70px; /* Gap between shelves */
}

.shelf-row {
    position: relative;
    padding-bottom: 16px; /* Space for the folder to sit on */
    width: max-content;
    min-width: 100%;
}

/* The actual horizontal wood/glass plate */
.shelf-plate {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 18px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
    border-top: 1px solid rgba(255, 255, 255, 0.25);
    border-bottom: 2px solid rgba(0, 0, 0, 0.4);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7);
    border-radius: 4px;
    z-index: 1;
}

/* Container of folders sitting on this row */
.shelf-folders {
    display: flex;
    flex-wrap: nowrap;
    gap: 22px; /* Gap between folders */
    padding-left: 20px;
    padding-right: 20px;
    position: relative;
    z-index: 2;
    min-height: 255px; /* Taller shelf to fit larger folders */
    align-items: flex-end;
    width: max-content;
    min-width: 100%;
}

/* BINDER / FOLDER (Modern 3D style) */
.binder {
    position: relative;
    width: 66px;
    height: 240px;
    border-radius: 8px 3px 3px 8px;
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
    transform-style: preserve-3d;
    background: linear-gradient(90deg, 
        rgba(0,0,0,0.3) 0%, 
        rgba(255,255,255,0.18) 15%, 
        rgba(255,255,255,0.0) 30%, 
        rgba(0,0,0,0.1) 75%, 
        rgba(0,0,0,0.4) 100%
    ), var(--binder-color, #3498db);
    box-shadow: 
        10px 10px 22px rgba(0, 0, 0, 0.55), 
        inset 1px 1px 1px rgba(255, 255, 255, 0.3),
        inset -1px -1px 2px rgba(0, 0, 0, 0.4);
    border-left: 1px solid rgba(255,255,255,0.15);
    border-right: 1px solid rgba(0,0,0,0.3);
}

/* Spine ridges (horizontal bands) */
.binder-spine-ribs {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: linear-gradient(to bottom,
        transparent 30px,
        rgba(0,0,0,0.2) 30px,
        rgba(255,255,255,0.1) 31px,
        transparent 32px,
        transparent 110px,
        rgba(0,0,0,0.2) 110px,
        rgba(255,255,255,0.1) 111px,
        transparent 112px,
        transparent 195px,
        rgba(0,0,0,0.2) 195px,
        rgba(255,255,255,0.1) 196px,
        transparent 197px
    );
}

/* Metal label frame holder */
.binder-label-holder {
    position: absolute;
    top: 42px;
    left: 9px;
    right: 9px;
    height: 135px;
    background: linear-gradient(135deg, #ffffff 0%, #eef1f6 100%);
    border-radius: 4px;
    border: 1.5px solid #bdc3c7;
    box-shadow: 
        inset 1px 1px 3px rgba(0,0,0,0.25), 
        0 2px 4px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 4px 2px;
}

/* Cardboard border texture for the label card */
.binder-label-holder::before {
    content: '';
    position: absolute;
    top: 2px;
    bottom: 2px;
    left: 2px;
    right: 2px;
    border: 1px dashed rgba(0,0,0,0.15);
    border-radius: 2px;
    pointer-events: none;
}

.binder-label-text {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    color: #1a202c;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-align: center;
    line-height: 1.25;
    user-select: none;
    max-height: 125px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Metallic pull ring */
.binder-ring-hole {
    position: absolute;
    bottom: 26px;
    left: 50%;
    transform: translateX(-50%);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #060810;
    box-shadow: inset 2px 2px 5px rgba(0,0,0,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
}

.binder-ring-metal {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid;
    border-color: #bdc3c7 #95a5a6 #7f8c8d #bdc3c7; /* Shiny metallic look */
    background: transparent;
    pointer-events: none;
    box-shadow: 
        0 1px 2px rgba(0,0,0,0.3),
        inset 0 1px 1px rgba(255,255,255,0.5);
}

/* Redesigned Document Count Badge */
.binder-badge {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--color-primary-dark), #0056b3);
    color: #fff;
    font-size: 9px;
    font-weight: 700;
    font-family: var(--font-eng);
    padding: 1px 6px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.25);
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    z-index: 5;
    text-shadow: 0 1px 1px rgba(0,0,0,0.5);
}

/* Shadow underneath binder */
.binder::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 5%;
    width: 90%;
    height: 10px;
    background: rgba(0, 0, 0, 0.65);
    filter: blur(5px);
    border-radius: 50%;
    transform: rotateX(90deg);
    opacity: 0.8;
    transition: var(--transition-smooth);
}

/* Interactive 3D tilt hover */
.binder:hover {
    transform: perspective(900px) rotateY(-22px) translateZ(40px) translateY(-18px) translateX(-6px);
    box-shadow: 
        25px 25px 35px rgba(0, 0, 0, 0.65), 
        inset 1.5px 1.5px 3px rgba(255,255,255,0.45);
    filter: brightness(1.08);
}

.binder:hover::after {
    opacity: 0.45;
    transform: rotateX(90deg) scale(1.35);
    bottom: -15px;
}

/* Empty row indicator */
.empty-shelf-text {
    width: 100%;
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
    font-style: italic;
    padding: 40px 0;
}

/* Forms layout */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text-primary);
}

.color-picker-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
}

.color-input {
    border: none;
    outline: none;
    background: none;
    cursor: pointer;
    width: 45px;
    height: 40px;
    border-radius: 6px;
}

.color-val {
    font-family: var(--font-eng);
    font-size: 14px;
    color: var(--text-secondary);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 25px;
}

/* Log Filters styling */
.log-filters-container {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    align-items: flex-end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
    min-width: 150px;
}

.filter-group-wide {
    flex: 2;
    min-width: 250px;
}

.filter-group label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
}

.filter-group label i {
    color: var(--color-primary);
}

.filter-actions {
    display: flex;
    gap: 8px;
}

.filter-actions button {
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

/* Table styling */
.table-responsive {
    overflow-x: auto;
    width: 100%;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table th, .data-table td {
    padding: 14px 16px;
    text-align: left;
}

.data-table th {
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 2px solid var(--border-glass);
    color: var(--text-primary);
    font-weight: 600;
}

.data-table td {
    border-bottom: 1px solid var(--border-glass);
    color: var(--text-secondary);
}

.data-table tr {
    transition: var(--transition-smooth);
}

.data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.table-color-dot {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    vertical-align: middle;
    border: 1.5px solid rgba(255,255,255,0.2);
    box-shadow: 0 0 5px rgba(0,0,0,0.3);
}

/* Search view styling */
.search-card {
    padding: 15px 24px;
}

.search-box-container {
    display: flex;
    align-items: center;
    position: relative;
    gap: 12px;
}

.search-icon {
    position: absolute;
    left: 15px;
    color: var(--text-muted);
    font-size: 16px;
}

#search-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border-glass);
    padding: 12px 12px 12px 45px;
    border-radius: 10px;
    color: #fff;
    font-size: 15px;
    outline: none;
    transition: var(--transition-smooth);
}

#search-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 10px rgba(0, 210, 255, 0.25);
}

.search-results-container {
    margin-top: 15px;
}

.results-header {
    font-size: 15px;
    margin-bottom: 15px;
    color: var(--text-secondary);
    font-weight: 600;
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 8px;
}

/* Tag list in document */
.doc-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 5px;
}

.tag-badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    font-size: 10.5px;
    padding: 1px 6px;
    border-radius: 4px;
}

/* Action button items */
.action-btns {
    display: flex;
    gap: 6px;
}

.action-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    cursor: pointer;
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    background: rgba(255,255,255,0.02);
    transition: var(--transition-smooth);
}

.action-btn:hover {
    color: #fff;
    transform: translateY(-1px);
}

.action-btn.btn-view:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary);
    box-shadow: 0 0 8px rgba(0, 114, 253, 0.4);
}

.action-btn.btn-edit:hover {
    background: #e67e22;
    border-color: #f39c12;
}

.action-btn.btn-delete:hover {
    background: #e74c3c;
    border-color: #c0392b;
}

.action-btn.btn-perm:hover {
    background: #9b59b6;
    border-color: #8e44ad;
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    background: rgba(5, 7, 15, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: rgba(20, 25, 45, 0.95);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 20px;
    width: 90%;
    max-width: 550px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.modal-large {
    max-width: 1000px;
    height: 85vh;
    display: flex;
    flex-direction: column;
}

.modal-large .modal-body {
    flex-grow: 1;
    overflow-y: auto;
    padding: 24px;
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 17px;
    font-weight: 600;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 8px;
}

.close-modal {
    font-size: 28px;
    font-weight: 300;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-smooth);
    line-height: 1;
}

.close-modal:hover {
    color: #fff;
}

.modal-body {
    padding: 24px;
}

/* File Upload Drag Drop */
.custom-file-upload {
    border: 2px dashed rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    cursor: pointer;
    background: rgba(0, 0, 0, 0.2);
    transition: var(--transition-smooth);
    position: relative;
}

.custom-file-upload:hover {
    border-color: var(--color-primary);
    background: rgba(0, 210, 255, 0.03);
}

.custom-file-upload i {
    font-size: 32px;
    color: var(--color-primary);
    margin-bottom: 10px;
    display: block;
}

.custom-file-upload input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

/* File selected state indicator */
.custom-file-upload.selected {
    border-color: var(--color-success);
    background: rgba(46, 204, 113, 0.05);
}
.custom-file-upload.selected i {
    color: var(--color-success);
}

/* Document restrictions user checklist list */
.restricted-users-list {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    max-height: 150px;
    overflow-y: auto;
    padding: 10px;
    margin-top: 10px;
}

.restricted-user-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.restricted-user-item:hover {
    background: rgba(255,255,255,0.04);
}

.restricted-user-item input[type="checkbox"] {
    accent-color: var(--color-danger);
    width: 15px;
    height: 15px;
}

/* PDF Previewer styles */
.pdf-viewer-modal .pdf-content {
    max-width: 90%;
    height: 90vh;
    display: flex;
    flex-direction: column;
}

.pdf-viewer-modal .modal-body {
    flex-grow: 1;
    background: #525659;
}

.pdf-header-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-slide-up {
    animation: slideUp 0.35s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

.animate-scale-up {
    animation: scaleUp 0.3s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

@keyframes slideUp {
    from { transform: translateY(100px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes scaleUp {
    from { transform: scale(0.92); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* Alert Boxes */
.alert {
    padding: 12px 18px;
    border-radius: 8px;
    font-size: 13.5px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-warning-glass {
    background: rgba(255, 165, 2, 0.08);
    border: 1px solid rgba(255, 165, 2, 0.25);
    color: var(--color-warning);
}

.alert-warning-glass i {
    font-size: 18px;
}

/* Handoff UI layout components */
.handoff-ui-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-around;
    gap: 20px;
    padding: 20px 0;
}

.handoff-col {
    flex: 1;
    max-width: 320px;
    text-align: center;
    background: rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 20px;
}

.handoff-circle {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    margin: 0 auto 15px auto;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.handoff-circle.source {
    background: rgba(255, 71, 87, 0.15);
    color: #ff4757;
    border: 2px solid rgba(255, 71, 87, 0.4);
}

.handoff-circle.target {
    background: rgba(46, 204, 113, 0.15);
    color: #2ecc71;
    border: 2px solid rgba(46, 204, 113, 0.4);
}

.handoff-arrow {
    font-size: 32px;
    color: var(--color-primary);
    text-shadow: 0 0 15px rgba(0, 210, 255, 0.5);
}

.animate-pulse {
    animation: pulsing 1.5s infinite ease-in-out;
}

@keyframes pulsing {
    0% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.15); opacity: 1; }
    100% { transform: scale(1); opacity: 0.6; }
}

/* Folder page info tags */
.folder-view-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-glass);
    padding: 12px 18px;
    border-radius: 10px;
}

.folder-info-badge {
    font-size: 13.5px;
    color: var(--text-secondary);
}

.folder-info-badge span {
    font-weight: 600;
    color: #fff;
}

/* Custom styled checkbox & list wrapper */
.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.ml-auto { margin-left: auto; }
.mr-2 { margin-right: 0.5rem; }
.cursor-pointer { cursor: pointer; }

/* Login Overlay Styling */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(5, 8, 20, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.login-card {
    background: rgba(22, 27, 49, 0.75);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    width: 90%;
    max-width: 480px;
    padding: 35px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    transition: var(--transition-smooth);
}

.login-card:hover {
    border-color: rgba(0, 210, 255, 0.35);
    box-shadow: 0 25px 70px rgba(0, 210, 255, 0.08);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo-icon {
    font-size: 55px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 15px rgba(0, 210, 255, 0.4));
    margin-bottom: 12px;
}

.login-header h2 {
    font-family: var(--font-eng);
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
}

.login-header p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 5px;
}

.login-helpers-panel {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 16px;
    margin-top: 25px;
}

.helpers-title {
    font-size: 11.5px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.helper-account-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    padding: 8px;
    color: var(--text-secondary);
    font-size: 11px;
    cursor: pointer;
    text-align: left;
    transition: var(--transition-smooth);
    line-height: 1.4;
}

.helper-account-btn strong {
    color: var(--text-primary);
    font-size: 11.5px;
}

.helper-account-btn:hover {
    background: rgba(0, 210, 255, 0.1);
    border-color: var(--color-primary);
    color: #fff;
    transform: translateY(-1px);
}

.helper-account-btn:hover strong {
    color: var(--color-primary);
}

/* Drag and Drop styles for reordering folders */
.drag-handle {
    cursor: grab;
    padding: 6px;
    color: var(--text-muted);
    font-size: 14px;
    transition: var(--transition-smooth);
}

.drag-handle:hover {
    color: var(--color-primary);
}

.drag-handle:active {
    cursor: grabbing;
}

tr[draggable="true"].dragging {
    opacity: 0.4;
    background: rgba(0, 210, 255, 0.1) !important;
    border: 1.5px dashed var(--color-primary) !important;
}

tr[draggable="true"].drag-over {
    border-top: 2px solid var(--color-primary) !important;
    background: rgba(255, 255, 255, 0.05) !important;
}

/* Pagination Controls Styling */
.pagination-container {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 8px;
    margin-top: 15px;
}

.pagination-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    font-family: var(--font-eng);
    transition: var(--transition-smooth);
    min-width: 32px;
    text-align: center;
    user-select: none;
}

.pagination-btn:hover {
    background: rgba(0, 210, 255, 0.1);
    border-color: var(--color-primary);
    color: #fff;
}

.pagination-btn.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 0 10px rgba(0, 210, 255, 0.25);
}

.pagination-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    background: transparent;
    border-color: var(--border-glass);
}

/* Drag and Drop styles for binders on 3D bookshelf */
.binder[draggable="true"] {
    user-select: none;
}

.binder.dragging {
    opacity: 0.45;
    transform: scale(0.9) translateY(10px) !important;
    filter: brightness(0.8);
    box-shadow: 2px 2px 8px rgba(0,0,0,0.5) !important;
}

.binder.drag-over {
    transform: perspective(900px) rotateY(-10px) translateZ(30px) translateY(-25px) translateX(-5px) !important;
    border: 2px dashed var(--color-primary) !important;
    box-shadow: 
        0 0 20px rgba(0, 210, 255, 0.5),
        25px 25px 35px rgba(0, 0, 0, 0.6) !important;
}

/* Trash Bin Styles */
.tab-button-group {
    display: flex;
    gap: 8px;
}

.tab-button-group .btn {
    border-radius: 6px;
    padding: 5px 12px;
    font-size: 12.5px;
}

.tab-button-group .btn.btn-primary {
    box-shadow: none;
}

.content-body {
    flex-grow: 1;
}

/* Main App Footer Styling */
.main-footer {
    margin-top: 30px;
    padding: 20px 0;
    text-align: center;
    border-top: 1px solid var(--border-glass);
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.main-footer p {
    margin: 2px 0;
    opacity: 0.8;
}

/* Sidebar Toggle Button (Hidden by default on Desktop) */
.btn-sidebar-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
    margin-right: 12px;
    border-radius: 6px;
    transition: var(--transition-smooth);
    line-height: 1;
}

.btn-sidebar-toggle:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-primary);
}

.top-bar-left {
    display: flex;
    align-items: center;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
    /* Sidebar Off-canvas transition */
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    /* Main Content adjust */
    .main-content {
        margin-left: 0;
        padding: 20px 15px;
    }
    
    /* Show Toggle Button */
    .btn-sidebar-toggle {
        display: inline-block;
    }
    
    /* Adjust grid systems */
    .card-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* Mobile Bookshelf Scroll support */
    .bookshelf-wrapper {
        padding: 20px 15px;
    }
    
    /* Sidebar Backdrop Overlay on mobile */
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(4px);
        z-index: 99;
    }
    
    .sidebar-overlay.show {
        display: block;
    }
}