/* KBHub Stylesheet */

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

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --background-color: #f8fafc;
    --text-color: #1e293b;
    --border-color: #e2e8f0;
    --card-background: #ffffff;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* Dark Mode Variables */
body.dark-mode {
    --primary-color: #3b82f6;
    --secondary-color: #94a3b8;
    --success-color: #22c55e;
    --danger-color: #f87171;
    --background-color: #0f172a;
    --text-color: #e2e8f0;
    --border-color: #334155;
    --card-background: #1e293b;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: var(--card-background);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    margin-bottom: 2rem;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.navbar-nav a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.2s;
}

.navbar-nav a:hover {
    color: var(--primary-color);
}

/* Main content */
main {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control,
.search-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 1rem;
    transition: border-color 0.2s;
    background-color: var(--card-background);
    color: var(--text-color);
}

.form-control:focus,
.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

body.dark-mode input[type="text"],
body.dark-mode input[type="password"],
body.dark-mode input[type="email"],
body.dark-mode input[type="number"],
body.dark-mode textarea,
body.dark-mode select {
    background-color: #334155;
    color: #e2e8f0;
    border-color: #475569;
}

body.dark-mode input[type="text"]:focus,
body.dark-mode input[type="password"]:focus,
body.dark-mode input[type="email"]:focus,
body.dark-mode input[type="number"]:focus,
body.dark-mode textarea:focus,
body.dark-mode select:focus {
    background-color: #475569;
    border-color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.375rem;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

.btn-primary:hover {
    background-color: #1d4ed8;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Dark mode toggle */
.dark-mode-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-color);
    font-size: 1.25rem;
    transition: opacity 0.2s;
}

.dark-mode-toggle:hover {
    opacity: 0.7;
}

/* Language Switcher */
.language-switcher {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
}

.language-switcher a {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    transition: background-color 0.2s;
}

.language-switcher a:hover {
    background-color: var(--border-color);
}

.language-switcher a.active {
    background-color: var(--primary-color);
    color: white;
    font-weight: bold;
}

/* Login page */
.login-container {
    max-width: 400px;
    margin: 4rem auto;
    padding: 2rem;
    background-color: var(--card-background);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.login-form {
    margin-top: 2rem;
}

/* Messages */
.error-message {
    padding: 0.75rem;
    margin-bottom: 1rem;
    background-color: #fee;
    border: 1px solid var(--danger-color);
    border-radius: 0.375rem;
    color: var(--danger-color);
}

.success-message {
    padding: 0.75rem;
    margin-bottom: 1rem;
    background-color: #efe;
    border: 1px solid var(--success-color);
    border-radius: 0.375rem;
    color: var(--success-color);
}

/* Search */
.quick-search {
    margin: 3rem 0;
}

.quick-search form {
    display: flex;
    gap: 1rem;
    max-width: 600px;
}

.quick-search .search-input {
    flex: 1;
}

/* Error page */
.error-page {
    text-align: center;
    padding: 4rem 0;
}

.error-page h1 {
    font-size: 3rem;
    color: var(--danger-color);
}

.error-page details {
    text-align: left;
    margin: 2rem auto;
    max-width: 800px;
}

.error-page pre {
    background-color: #f1f5f9;
    padding: 1rem;
    border-radius: 0.375rem;
    overflow-x: auto;
}

/* Footer */
.footer {
    background-color: var(--card-background);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: 4rem;
    text-align: center;
    color: var(--secondary-color);
}

/* Dashboard */
.dashboard {
    max-width: 1000px;
    margin: 0 auto;
}

.welcome-message {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--card-background);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 1rem 0;
}

.quick-actions {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.action-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.recent-activity {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: #475569;
}

/* QA Form */
.qa-form-container {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.qa-form textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.qa-form .required {
    color: var(--danger-color);
}

.qa-form .form-text {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--secondary-color);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* QA List */
.qa-list-container {
    max-width: 1000px;
    margin: 0 auto;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.filter-section {
    background-color: var(--card-background);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.filter-form {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.filter-form label {
    margin-bottom: 0;
    font-weight: 500;
}

.filter-form select {
    width: auto;
    min-width: 200px;
}

.result-count {
    color: var(--secondary-color);
    margin: 0;
}

.qa-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.qa-item-card {
    background-color: var(--card-background);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.2s;
}

.qa-item-card:hover {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.qa-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.qa-question {
    margin: 0;
    font-size: 1.25rem;
}

.qa-question a {
    color: var(--text-color);
    text-decoration: none;
}

.qa-question a:hover {
    color: var(--primary-color);
}

.qa-category {
    background-color: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    white-space: nowrap;
}

.qa-item-body {
    margin-bottom: 1rem;
}

.qa-answer-preview {
    color: var(--secondary-color);
    line-height: 1.6;
    margin: 0;
}

.qa-item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.qa-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background-color: #f1f5f9;
    color: var(--secondary-color);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
}

.qa-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--secondary-color);
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
}

.page-info {
    color: var(--secondary-color);
}

.no-results {
    text-align: center;
    padding: 3rem;
    background-color: var(--card-background);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* QA Detail */
.qa-detail-container {
    max-width: 900px;
    margin: 0 auto;
}

.breadcrumb {
    margin-bottom: 1rem;
}

.breadcrumb a {
    color: var(--secondary-color);
    text-decoration: none;
}

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

.qa-detail {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.qa-detail-header {
    margin-bottom: 2rem;
}

.qa-detail-category {
    margin-bottom: 1rem;
}

.category-badge {
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 0.875rem;
}

.qa-detail-question {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.qa-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.qa-detail-answer {
    margin-bottom: 2rem;
}

.qa-detail-answer h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.answer-content {
    line-height: 1.8;
    font-size: 1.1rem;
    white-space: pre-wrap;
}

.qa-detail-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.qa-detail-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    color: var(--secondary-color);
}

.qa-detail-actions {
    display: flex;
    gap: 1rem;
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
}

/* RTL Support for Hebrew */
html[dir="rtl"] {
    direction: rtl;
}

html[dir="rtl"] body {
    text-align: right;
}

html[dir="rtl"] .navbar .container {
    flex-direction: row-reverse;
}

html[dir="rtl"] .navbar-nav {
    flex-direction: row-reverse;
}

html[dir="rtl"] .form-group label {
    text-align: right;
}

html[dir="rtl"] .btn {
    text-align: center;
}

html[dir="rtl"] .page-header {
    flex-direction: row-reverse;
}

html[dir="rtl"] .dashboard-stats,
html[dir="rtl"] .action-buttons {
    direction: rtl;
}

html[dir="rtl"] .data-table {
    direction: rtl;
}

html[dir="rtl"] .data-table th,
html[dir="rtl"] .data-table td {
    text-align: right;
}

html[dir="rtl"] .pagination {
    flex-direction: row-reverse;
}

html[dir="rtl"] .search-input-group {
    flex-direction: row-reverse;
}

html[dir="rtl"] .form-row {
    direction: rtl;
}

html[dir="rtl"] .qa-detail-meta {
    text-align: right;
}

html[dir="rtl"] .breadcrumb {
    direction: rtl;
}

html[dir="rtl"] .language-switcher {
    flex-direction: row-reverse;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

/* Data Tables */
.data-table {
    width: 100%;
    background-color: var(--card-background);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.data-table thead {
    background-color: var(--primary-color);
    color: white;
}

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tbody tr:hover {
    background-color: #f8fafc;
}

body.dark-mode .data-table tbody tr:hover {
    background-color: #334155;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.badge-success {
    background-color: #dcfce7;
    color: #166534;
}

.badge-inactive {
    background-color: #f1f5f9;
    color: #64748b;
}

.badge-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-info {
    background-color: #dbeafe;
    color: #1e40af;
}

.category-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

/* Button Sizes */
.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

/* Search Container */
.search-container {
    max-width: 900px;
    margin: 0 auto;
}

.search-form {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.search-input-group {
    display: flex;
    gap: 1rem;
}

.search-input-group input {
    flex: 1;
}

.search-results {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.results-count {
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.qa-results-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.qa-result-item {
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    transition: box-shadow 0.2s;
}

.qa-result-item:hover {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.qa-result-item h3 {
    margin-bottom: 0.5rem;
}

.qa-result-item h3 a {
    color: var(--text-color);
    text-decoration: none;
}

.qa-result-item h3 a:hover {
    color: var(--primary-color);
}

.answer-preview {
    color: var(--secondary-color);
    margin-bottom: 0.75rem;
}

.item-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--secondary-color);
}

.search-tips {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.search-tips ul {
    margin-top: 1rem;
    margin-left: 1.5rem;
}

.search-tips li {
    margin-bottom: 0.5rem;
}

.no-results {
    text-align: center;
    padding: 3rem;
    color: var(--secondary-color);
}

/* Import Page */
.form-container {
    max-width: 800px;
    margin: 0 auto;
}

.import-instructions {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.import-instructions pre {
    background-color: #f8fafc;
    padding: 1rem;
    border-radius: 0.375rem;
    overflow-x: auto;
    margin-top: 1rem;
}

.import-form {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.form-group input[type="file"] {
    padding: 0.5rem;
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: var(--secondary-color);
    font-size: 0.875rem;
}

.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 1rem;
}

.form-group input[type="text"],
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
    padding: 1rem;
}

/* QA Edit Page */
.qa-form {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    max-width: 800px;
    margin: 0 auto 2rem;
}

.version-info {
    background-color: #f8fafc;
    padding: 1rem;
    border-radius: 0.5rem;
    max-width: 800px;
    margin: 0 auto;
    font-size: 0.875rem;
}

.version-info p {
    margin-bottom: 0.5rem;
}

.required {
    color: var(--danger-color);
}

/* Categories and Users List */
.categories-list,
.users-list {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Success message styling */
.success-message ul {
    margin-top: 0.5rem;
    margin-left: 1.5rem;
}

/* Admin Dashboard */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.info-item {
    padding: 0.75rem;
    background-color: #f8fafc;
    border-radius: 0.375rem;
}

body.dark-mode .info-item {
    background-color: #334155;
}

.system-info {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-top: 2rem;
}

/* Advanced Search */
.advanced-search-form {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.search-conditions h3 {
    margin-bottom: 1.5rem;
}

.condition-group {
    background-color: #f8fafc;
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
}

body.dark-mode .condition-group {
    background-color: #334155;
}

.condition-group h4 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.search-input-group {
    display: flex;
    gap: 0.5rem;
}

/* ============================================
   Quill Editor Styles
   ============================================ */
.ql-container {
    font-size: 14px;
    border: 1px solid var(--border-color);
    border-top: none;
}

.ql-toolbar {
    border: 1px solid var(--border-color);
}

.ql-editor {
    min-height: 150px;
    font-size: 14px;
    line-height: 1.6;
}

.ql-editor.ql-blank::before {
    font-style: normal;
    color: #adb5bd;
}

/* RTL support for Quill */
html[dir="rtl"] .ql-editor {
    text-align: right;
    direction: rtl;
}

html[dir="rtl"] .ql-toolbar {
    text-align: right;
}

/* Dark mode for Quill */
body.dark-mode .ql-container {
    background-color: var(--card-background);
    color: var(--text-color);
    border-color: var(--border-color);
}

body.dark-mode .ql-editor {
    background-color: var(--card-background);
    color: var(--text-color);
}

body.dark-mode .ql-toolbar {
    background-color: var(--card-background);
    border-color: var(--border-color);
}

body.dark-mode .ql-stroke {
    stroke: var(--text-color);
}

body.dark-mode .ql-fill {
    fill: var(--text-color);
}

body.dark-mode .ql-picker-label {
    color: var(--text-color);
}

body.dark-mode .ql-picker-options {
    background-color: var(--card-background);
    border-color: var(--border-color);
}

/* ============================================ */
/* Tree View Styles */
/* ============================================ */

/* Header with expand/collapse buttons */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.header-actions {
    display: flex;
    gap: 10px;
}

/* Filter section */
.tree-filter-section {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    border: 1px solid var(--border-color);
}

.tree-filter-form .filter-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr auto;
    gap: 15px;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-group label {
    font-weight: 600;
    margin-bottom: 5px;
    font-size: 14px;
    color: var(--text-color);
}

.filter-group .form-control {
    width: 100%;
}

.filter-actions {
    display: flex;
    gap: 10px;
}

/* Tree container */
.tree-container {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
}

.tree-root {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tree-node {
    margin: 0;
    padding: 0;
}

.tree-node-content {
    display: flex;
    align-items: flex-start;
    padding: 10px;
    border-left: 2px solid transparent;
    transition: all 0.2s ease;
}

.tree-node-content:hover {
    filter: brightness(0.95);
    border-left-color: var(--primary-color);
}

html[dir="rtl"] .tree-node-content:hover {
    border-left-color: transparent;
    border-right-color: var(--primary-color);
}

body.dark-mode .tree-node-content:hover {
    filter: brightness(1.2);
}

/* Toggle button */
.tree-toggle {
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin-right: 10px;
    flex-shrink: 0;
    font-size: 16px;
    font-weight: bold;
    transition: background 0.2s ease;
}

html[dir="rtl"] .tree-toggle {
    margin-right: 0;
    margin-left: 10px;
}

.tree-toggle:hover {
    background: #1d4ed8;
}

.tree-spacer {
    width: 24px;
    margin-right: 10px;
    flex-shrink: 0;
}

html[dir="rtl"] .tree-spacer {
    margin-right: 0;
    margin-left: 10px;
}

.toggle-icon {
    line-height: 1;
}

/* Tree item info */
.tree-item-info {
    flex: 1;
}

/* Answer text styling */
.tree-answer-text {
    color: #4b5563;
    font-size: 0.9em;
    font-style: italic;
    padding: 0;
    margin: 0;
    text-indent: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.tree-answer-text p {
    margin: 0.5em 0;
    padding: 0;
    text-indent: 0;
}

.tree-answer-text p:first-child {
    margin-top: 0;
}

.tree-answer-text p:last-child {
    margin-bottom: 0;
}

body.dark-mode .tree-answer-text {
    color: #9ca3af;
}

.tree-answer-info {
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.tree-answer-icon {
    flex-shrink: 0;
    color: #6b7280;
}

body.dark-mode .tree-answer-icon {
    color: #9ca3af;
}

.tree-question {
    font-weight: 600;
    color: var(--text-color);
    text-decoration: none;
    font-size: 16px;
    display: block;
    margin-bottom: 5px;
    transition: color 0.2s ease;
}

.tree-question:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.tree-meta {
    display: flex;
    gap: 15px;
    align-items: center;
    font-size: 13px;
    color: #6c757d;
    flex-wrap: wrap;
}

.tree-category {
    background: #e3f2fd;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 500;
    color: #1976d2;
}

body.dark-mode .tree-category {
    background: rgba(37, 99, 235, 0.2);
    color: #60a5fa;
}

.tree-tags {
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
}

.tree-tags .tag {
    background: #f5f5f5;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 12px;
    color: #495057;
}

body.dark-mode .tree-tags .tag {
    background: rgba(255, 255, 255, 0.1);
    color: #cbd5e1;
}

/* Tree children - Progressive indentation for each level */
.tree-children {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tree-node.collapsed .tree-children {
    display: none;
}

/* Level 1 (Root level) - No indentation */
.tree-root > .tree-node > .tree-node-content {
    margin-left: 0;
    background: rgba(255, 255, 255, 0.5);
    border-left: 3px solid #3b82f6;
}

html[dir="rtl"] .tree-root > .tree-node > .tree-node-content {
    margin-right: 0;
    margin-left: 0;
    border-left: none;
    border-right: 3px solid #3b82f6;
}

/* Level 2 - 30px indentation */
.tree-root > .tree-node > .tree-children > .tree-node > .tree-node-content {
    margin-left: 30px;
    background: rgba(59, 130, 246, 0.05);
    border-left: 3px solid #60a5fa;
}

html[dir="rtl"] .tree-root > .tree-node > .tree-children > .tree-node > .tree-node-content {
    margin-right: 30px;
    margin-left: 0;
    border-left: none;
    border-right: 3px solid #60a5fa;
}

/* Level 3 - 60px indentation */
.tree-root > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-node-content {
    margin-left: 60px;
    background: rgba(59, 130, 246, 0.08);
    border-left: 3px solid #93c5fd;
}

html[dir="rtl"] .tree-root > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-node-content {
    margin-right: 60px;
    margin-left: 0;
    border-left: none;
    border-right: 3px solid #93c5fd;
}

/* Level 4 - 90px indentation */
.tree-root > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-node-content {
    margin-left: 90px;
    background: rgba(59, 130, 246, 0.12);
    border-left: 3px solid #bfdbfe;
}

html[dir="rtl"] .tree-root > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-node-content {
    margin-right: 90px;
    margin-left: 0;
    border-left: none;
    border-right: 3px solid #bfdbfe;
}

/* Level 5 - 120px indentation */
.tree-root > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-node-content {
    margin-left: 120px;
    background: rgba(59, 130, 246, 0.15);
    border-left: 3px solid #dbeafe;
}

html[dir="rtl"] .tree-root > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-node-content {
    margin-right: 120px;
    margin-left: 0;
    border-left: none;
    border-right: 3px solid #dbeafe;
}

/* Level 6 - 150px indentation */
.tree-root > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-node-content {
    margin-left: 150px;
    background: rgba(59, 130, 246, 0.18);
    border-left: 3px solid #eff6ff;
}

html[dir="rtl"] .tree-root > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-node-content {
    margin-right: 150px;
    margin-left: 0;
    border-left: none;
    border-right: 3px solid #eff6ff;
}

/* Dark mode adjustments for tree levels */
body.dark-mode .tree-root > .tree-node > .tree-node-content {
    background: rgba(59, 130, 246, 0.1);
    border-left-color: #3b82f6;
}

body.dark-mode .tree-root > .tree-node > .tree-children > .tree-node > .tree-node-content {
    background: rgba(59, 130, 246, 0.15);
    border-left-color: #60a5fa;
}

body.dark-mode .tree-root > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-node-content {
    background: rgba(59, 130, 246, 0.2);
    border-left-color: #93c5fd;
}

body.dark-mode .tree-root > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-node-content {
    background: rgba(59, 130, 246, 0.25);
    border-left-color: #bfdbfe;
}

body.dark-mode .tree-root > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-node-content {
    background: rgba(59, 130, 246, 0.3);
    border-left-color: #dbeafe;
}

body.dark-mode .tree-root > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-children > .tree-node > .tree-node-content {
    background: rgba(59, 130, 246, 0.35);
    border-left-color: #eff6ff;
}

/* No results message */
.no-results {
    text-align: center;
    padding: 40px 20px;
    color: #6c757d;
}

.no-results p {
    margin-bottom: 15px;
    font-size: 16px;
}

/* Import type selection cards */
.import-type-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 2rem;
}

.import-type-card {
    background: var(--card-background);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s ease;
}

.import-type-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.import-type-card h2 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.import-type-card p {
    color: var(--text-color);
    margin-bottom: 15px;
}

.import-type-card ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.import-type-card ul li {
    color: var(--text-color);
    margin-bottom: 8px;
}

.import-type-card .btn {
    width: 100%;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .tree-filter-form .filter-row {
        grid-template-columns: 1fr;
    }

    .tree-children {
        padding-left: 20px;
    }

    .filter-actions {
        flex-direction: column;
    }

    .filter-actions .btn {
        width: 100%;
    }

    .import-type-selection {
        grid-template-columns: 1fr;
    }
}

/* Filter Input Wrapper with Reset Button */
.filter-input-wrapper {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-reset-btn {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--secondary-color);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px 8px;
    line-height: 1;
    transition: all 0.2s;
    flex-shrink: 0;
    height: 38px;
    min-width: 38px;
}

.filter-reset-btn:hover {
    color: white;
    background: var(--danger-color);
    border-color: var(--danger-color);
}

.filter-input-wrapper input {
    flex: 1;
}

/* Autocomplete Dropdown */
.autocomplete-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 46px;
    background: var(--card-background);
    border: 1px solid var(--border-color);
    max-height: 200px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 4px;
}

.autocomplete-dropdown.active {
    display: block;
}

.autocomplete-item {
    padding: 8px 12px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.autocomplete-item:hover,
.autocomplete-item.selected {
    background-color: var(--background-color);
}

.autocomplete-item mark {
    background-color: #fef08a;
    color: inherit;
    font-weight: bold;
}

/* Tree Quick Actions */
.tree-quick-actions {
    display: inline-flex;
    gap: 8px;
    margin-left: 12px;
    opacity: 0;
    transition: opacity 0.2s;
}

.tree-node:hover .tree-quick-actions {
    opacity: 1;
}

.btn-icon {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-color);
}

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

.btn-icon.copied {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

/* Filter Actions */
.filter-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

/* Saved Filters Select */
#savedFilters {
    padding: 6px 12px;
}

/* Notification Toast */
.toast-notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    animation: slideIn 0.3s ease;
}

.toast-notification.success {
    border-left: 4px solid var(--success-color);
}

.toast-notification.error {
    border-left: 4px solid var(--danger-color);
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    animation: fadeIn 0.2s ease;
}

.modal-container {
    background: var(--card-background);
    border-radius: 0.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

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

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--text-color);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 30px;
    height: 30px;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--text-color);
}

.modal-body {
    padding: 1.5rem;
}

.siotu-info {
    background-color: #f0f9ff;
    padding: 1rem;
    border-radius: 0.375rem;
    border-left: 4px solid var(--primary-color);
}

body.dark-mode .siotu-info {
    background-color: #1e3a5f;
}

.siotu-url-container {
    display: flex;
    gap: 0.5rem;
    margin: 1rem 0;
}

.siotu-url-input {
    flex: 1;
    font-family: monospace;
    background-color: #f8fafc;
}

body.dark-mode .siotu-url-input {
    background-color: #334155;
    color: #e2e8f0;
}

.siotu-instructions {
    background-color: #fffbeb;
    padding: 1rem;
    border-radius: 0.375rem;
    margin-top: 1rem;
    border-left: 4px solid #f59e0b;
}

body.dark-mode .siotu-instructions {
    background-color: #422006;
    color: #fef3c7;
}

.siotu-instructions ul {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

.siotu-instructions li {
    margin-bottom: 0.5rem;
}

/* Inline SIOTU Form */
.siotu-inline-form {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-top: 1.5rem;
    animation: slideDown 0.3s ease-out;
}

.siotu-form-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.siotu-form-header h3 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--text-color);
}

.siotu-form-header .close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--secondary-color);
    cursor: pointer;
    padding: 0;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.25rem;
    transition: all 0.2s;
}

.siotu-form-header .close-btn:hover {
    background-color: var(--border-color);
    color: var(--danger-color);
}

.siotu-success {
    background-color: #f0fdf4;
    border: 1px solid #86efac;
    border-radius: 0.5rem;
    padding: 1.5rem;
}

body.dark-mode .siotu-success {
    background-color: #022c22;
    border-color: #166534;
}

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

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

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

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}