/* 
 * DataRoom - iPhone-Style CSS
 * Modern, smooth, and elegant design inspired by iOS
 */

/* CSS Variables */
:root {
    --primary: #007AFF;
    --primary-dark: #0056CC;
    --secondary: #5856D6;
    --success: #34C759;
    --warning: #FF9500;
    --danger: #FF3B30;
    --info: #5AC8FA;
    
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    --bg-primary: #F5F5F7;
    --bg-secondary: #FFFFFF;
    --text-primary: #1D1D1F;
    --text-secondary: #86868B;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    --transition: all 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-fast: all 0.15s cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #000000;
        --bg-secondary: #1C1C1E;
        --text-primary: #FFFFFF;
        --text-secondary: #8E8E93;
    }
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2rem; letter-spacing: -0.01em; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

/* Layout */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    transition: var(--transition);
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--gray-200);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-logo i {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.sidebar-nav {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 8px 12px;
    margin-bottom: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius);
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition-fast);
    margin-bottom: 4px;
}

.nav-item:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.nav-item i {
    width: 24px;
    font-size: 1.1rem;
}

.nav-badge {
    margin-left: auto;
    background: var(--danger);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--gray-200);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--radius);
    transition: var(--transition-fast);
}

.user-profile:hover {
    background: var(--gray-100);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1rem;
}

.user-info {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 280px;
    min-height: 100vh;
}

.content-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--gray-200);
    padding: 20px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.content-title {
    font-size: 1.5rem;
    font-weight: 700;
}

.content-body {
    padding: 32px;
}

/* Cards */
.card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 0.9375rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 122, 255, 0.3);
    color: white;
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--gray-200);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #30D158 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #FF453A 100%);
    color: white;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-full);
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.1);
}

.form-control::placeholder {
    color: var(--text-secondary);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
    padding-right: 48px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 12px;
}

.form-check-input {
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.form-check-input:checked {
    background: var(--primary);
    border-color: var(--primary);
}

/* File/Folder Grid - iPhone Style */
.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

.item-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    position: relative;
}

.item-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.item-card:active {
    transform: scale(0.98);
}

.item-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    font-size: 2.5rem;
    transition: var(--transition);
}

/* Folder Colors */
.folder-icon {
    background: linear-gradient(180deg, #7AC1FF 0%, #007AFF 100%);
    color: white;
}

.folder-icon.color-blue { background: linear-gradient(180deg, #7AC1FF 0%, #007AFF 100%); }
.folder-icon.color-purple { background: linear-gradient(180deg, #B4A4FF 0%, #5856D6 100%); }
.folder-icon.color-pink { background: linear-gradient(180deg, #FFB4C4 0%, #FF2D55 100%); }
.folder-icon.color-red { background: linear-gradient(180deg, #FF8A8A 0%, #FF3B30 100%); }
.folder-icon.color-orange { background: linear-gradient(180deg, #FFCC80 0%, #FF9500 100%); }
.folder-icon.color-yellow { background: linear-gradient(180deg, #FFEB80 0%, #FFCC00 100%); }
.folder-icon.color-green { background: linear-gradient(180deg, #8AE68A 0%, #34C759 100%); }
.folder-icon.color-teal { background: linear-gradient(180deg, #8AE6E6 0%, #5AC8FA 100%); }
.folder-icon.color-gray { background: linear-gradient(180deg, #D1D5DB 0%, #8E8E93 100%); }

/* File Type Colors */
.file-icon {
    background: linear-gradient(180deg, var(--gray-200) 0%, var(--gray-300) 100%);
    color: var(--gray-600);
}

.file-icon.type-pdf { background: linear-gradient(180deg, #FF8A8A 0%, #FF3B30 100%); color: white; }
.file-icon.type-doc, .file-icon.type-docx { background: linear-gradient(180deg, #7AC1FF 0%, #2B579A 100%); color: white; }
.file-icon.type-xls, .file-icon.type-xlsx { background: linear-gradient(180deg, #8AE68A 0%, #217346 100%); color: white; }
.file-icon.type-ppt, .file-icon.type-pptx { background: linear-gradient(180deg, #FFCC80 0%, #D24726 100%); color: white; }
.file-icon.type-jpg, .file-icon.type-jpeg, .file-icon.type-png, .file-icon.type-gif { background: linear-gradient(180deg, #B4A4FF 0%, #5856D6 100%); color: white; }
.file-icon.type-zip, .file-icon.type-rar, .file-icon.type-7z { background: linear-gradient(180deg, #FFEB80 0%, #FF9500 100%); color: white; }
.file-icon.type-txt, .file-icon.type-csv { background: linear-gradient(180deg, #D1D5DB 0%, #6B7280 100%); color: white; }

.item-name {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-primary);
    word-break: break-word;
    line-height: 1.3;
    max-height: 2.6em;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.item-meta {
    font-size: 0.6875rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.item-checkbox {
    position: absolute;
    top: 8px;
    left: 8px;
    opacity: 0;
    transition: var(--transition-fast);
}

.item-card:hover .item-checkbox,
.item-card.selected .item-checkbox {
    opacity: 1;
}

.item-card.selected {
    background: rgba(0, 122, 255, 0.1);
    border: 2px solid var(--primary);
}

/* List View */
.items-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.list-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition-fast);
}

.list-item:hover {
    background: var(--gray-100);
}

.list-item-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.list-item-info {
    flex: 1;
    min-width: 0;
}

.list-item-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.list-item-meta {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    display: flex;
    gap: 16px;
}

.list-item-actions {
    display: flex;
    gap: 8px;
    opacity: 0;
    transition: var(--transition-fast);
}

.list-item:hover .list-item-actions {
    opacity: 1;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 0;
    font-size: 0.875rem;
}

.breadcrumb-item {
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.breadcrumb-item:hover {
    color: var(--primary);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 600;
}

.breadcrumb-separator {
    color: var(--gray-400);
}

/* Table */
.table-wrapper {
    overflow-x: auto;
}

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

.table th,
.table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    background: var(--gray-50);
}

.table tbody tr {
    transition: var(--transition-fast);
}

.table tbody tr:hover {
    background: var(--gray-50);
}

/* Alerts */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background: rgba(52, 199, 89, 0.1);
    color: var(--success);
    border: 1px solid rgba(52, 199, 89, 0.2);
}

.alert-danger {
    background: rgba(255, 59, 48, 0.1);
    color: var(--danger);
    border: 1px solid rgba(255, 59, 48, 0.2);
}

.alert-warning {
    background: rgba(255, 149, 0, 0.1);
    color: var(--warning);
    border: 1px solid rgba(255, 149, 0, 0.2);
}

.alert-info {
    background: rgba(0, 122, 255, 0.1);
    color: var(--primary);
    border: 1px solid rgba(0, 122, 255, 0.2);
}

/* Modal */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: var(--transition);
}

.modal-backdrop.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 700;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--gray-200);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    max-height: 60vh;
}

.modal-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition-fast);
    z-index: 100;
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--gray-100);
}

.dropdown-item.danger {
    color: var(--danger);
}

.dropdown-divider {
    height: 1px;
    background: var(--gray-200);
    margin: 8px 0;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stat-icon.blue { background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%); }
.stat-icon.green { background: linear-gradient(135deg, var(--success) 0%, #30D158 100%); }
.stat-icon.orange { background: linear-gradient(135deg, var(--warning) 0%, #FF9F0A 100%); }
.stat-icon.purple { background: linear-gradient(135deg, var(--secondary) 0%, #AF52DE 100%); }

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-lg);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary);
    background: rgba(0, 122, 255, 0.05);
}

.upload-zone-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--gray-100);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary);
}

.upload-zone-text {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.upload-zone-hint {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Progress Bar */
.progress {
    height: 8px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-primary { background: rgba(0, 122, 255, 0.1); color: var(--primary); }
.badge-success { background: rgba(52, 199, 89, 0.1); color: var(--success); }
.badge-warning { background: rgba(255, 149, 0, 0.1); color: var(--warning); }
.badge-danger { background: rgba(255, 59, 48, 0.1); color: var(--danger); }
.badge-secondary { background: var(--gray-100); color: var(--text-secondary); }

/* Search */
.search-box {
    position: relative;
}

.search-box input {
    padding-left: 48px;
}

.search-box i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

/* Toolbar */
.toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 0;
    flex-wrap: wrap;
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.view-toggle {
    display: flex;
    background: var(--gray-100);
    border-radius: var(--radius);
    padding: 4px;
}

.view-toggle-btn {
    padding: 8px 12px;
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.view-toggle-btn.active {
    background: var(--bg-secondary);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* Permission Toggle */
.permission-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: var(--gray-50);
    border-radius: var(--radius);
    margin-bottom: 12px;
}

.permission-label {
    font-weight: 600;
    color: var(--text-primary);
}

.permission-description {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    width: 52px;
    height: 32px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gray-300);
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 4px;
    bottom: 4px;
    background: white;
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
    box-shadow: var(--shadow);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--success);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(20px);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 24px;
}

.empty-state-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 24px;
    background: var(--gray-100);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--text-secondary);
}

.empty-state-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-state-text {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* Login Page */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 24px;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.auth-header {
    padding: 40px 40px 32px;
    text-align: center;
}

.auth-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 2.5rem;
    color: white;
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.auth-subtitle {
    color: var(--text-secondary);
}

.auth-body {
    padding: 0 40px 40px;
}

.auth-footer {
    text-align: center;
    padding: 24px 40px;
    background: var(--gray-50);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
}

@media (max-width: 768px) {
    .items-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 12px;
    }
    
    .item-icon {
        width: 60px;
        height: 60px;
        font-size: 1.75rem;
    }
    
    .content-body {
        padding: 16px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }
}

/* Print Styles */
@media print {
    .sidebar,
    .content-header,
    .toolbar {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes scaleIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.animate-fadeIn { animation: fadeIn 0.3s ease; }
.animate-slideUp { animation: slideUp 0.4s ease; }
.animate-scaleIn { animation: scaleIn 0.3s ease; }

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-secondary); }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.d-flex { display: flex; }
.d-none { display: none; }
.flex-1 { flex: 1; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }

.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.align-center { align-items: center; }

/* Context Menu */
.context-menu {
    position: fixed;
    background: var(--bg-secondary);
    border-radius: 6px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    padding: 4px 0;
    min-width: 160px;
    max-width: 220px;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.95);
    transition: var(--transition-fast);
    border: 1px solid var(--gray-300);
}

.context-menu.active {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

.context-menu-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 13px;
    color: var(--text-primary);
}

.context-menu-item:hover {
    background: var(--primary);
    color: white;
}

.context-menu-item i {
    width: 14px;
    font-size: 12px;
    text-align: center;
    color: var(--text-secondary);
}

.context-menu-item:hover i {
    color: white;
}

.context-menu-item.text-danger {
    color: var(--danger);
}

.context-menu-item.text-danger:hover {
    background: var(--danger);
    color: white;
}

.context-menu-item.text-danger i {
    color: var(--danger);
}

.context-menu-item.text-danger:hover i {
    color: white;
}

.context-menu-divider {
    height: 1px;
    background: var(--gray-200);
    margin: 4px 0;
}

/* Drag and Drop Styles */
.item-card.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.item-card.drag-over {
    transform: scale(1.05);
    box-shadow: 0 0 0 3px var(--primary), var(--shadow-lg);
    background: rgba(0, 122, 255, 0.1);
}

.item-card[data-type="folder"].drag-over .folder-icon,
.item-card[data-type="folder"].drag-over .item-icon {
    transform: scale(1.1);
    animation: pulse 0.5s ease infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1.1); }
    50% { transform: scale(1.15); }
}

.breadcrumb-item.drag-over {
    background: var(--primary);
    color: white;
    border-radius: var(--radius-sm);
}

/* Modal Enhancements */
.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    pointer-events: none;
}

.modal.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.95) translateY(20px);
    transition: var(--transition);
}

/* Compact Windows-style modal */
.modal-content.modal-compact {
    max-width: 300px !important;
    width: auto;
    min-width: 250px;
    border-radius: 3px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.3);
}

.modal-compact .modal-header {
    padding: 6px 10px !important;
    background: linear-gradient(to bottom, #f8f8f8, #e8e8e8);
    border-bottom: 1px solid #bbb;
}

.modal-compact .modal-title {
    font-size: 12px !important;
    font-weight: normal !important;
}

.modal-compact .modal-close {
    width: 18px !important;
    height: 18px !important;
    font-size: 10px;
    background: transparent;
}

.modal-compact .modal-body {
    padding: 10px !important;
    max-height: 300px;
    font-size: 12px;
}

.modal-compact .modal-footer {
    padding: 6px 10px !important;
    background: #f0f0f0;
    border-top: 1px solid #ccc;
}

.modal.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    max-height: calc(90vh - 140px);
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

/* Permission Item */
.permission-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem;
    background: var(--gray-50);
    border-radius: var(--radius);
    margin-bottom: 0.5rem;
    transition: var(--transition-fast);
}

.permission-item:hover {
    background: var(--gray-100);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Form Control Small */
.form-control-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
    border-radius: var(--radius-sm);
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
    .context-menu {
        border-color: var(--gray-700);
        background: var(--gray-800);
    }
    
    .context-menu-item {
        color: var(--gray-100);
    }
    
    .context-menu-item:hover {
        background: var(--primary);
        color: white;
    }
    
    .context-menu-item i {
        color: var(--gray-400);
    }
    
    .context-menu-item:hover i {
        color: white;
    }
    
    .context-menu-divider {
        background: var(--gray-700);
    }
    
    .modal-header,
    .modal-footer {
        border-color: var(--gray-700);
    }
    
    .modal-footer {
        background: var(--gray-900);
    }
    
    .loading-overlay {
        background: rgba(0, 0, 0, 0.8);
    }
}