/* ============================================
   ResearchAI Platform — Master Stylesheet
   ============================================ */

:root {
    /* Primary Colors */
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --primary-light: #818CF8;
    --primary-bg: #EEF2FF;
    
    /* Secondary Colors */
    --secondary: #0EA5E9;
    --secondary-dark: #0284C7;
    --secondary-light: #38BDF8;
    
    /* Accent Colors */
    --accent-green: #10B981;
    --accent-amber: #F59E0B;
    --accent-red: #EF4444;
    --accent-purple: #8B5CF6;
    --accent-pink: #EC4899;
    
    /* Neutral Colors */
    --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;
    
    /* Layout */
    --sidebar-width: 260px;
    --sidebar-collapsed: 72px;
    --topbar-height: 64px;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-xs: 6px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 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);
    
    /* Transitions */
    --transition: all 0.2s ease;
    --transition-slow: all 0.3s ease;
}

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

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    display: flex;
    min-height: 100vh;
    overflow: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }
img { max-width: 100%; }

/* ============================================
   Scrollbar
   ============================================ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); }

/* ============================================
   Sidebar
   ============================================ */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--gray-900);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    transition: var(--transition-slow);
}

.sidebar-header {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

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

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.sidebar-toggle {
    color: var(--gray-400);
    font-size: 16px;
    padding: 6px;
    border-radius: 6px;
    transition: var(--transition);
}

.sidebar-toggle:hover {
    color: white;
    background: rgba(255,255,255,0.1);
}

.sidebar-nav {
    flex: 1;
    padding: 12px;
    overflow-y: auto;
}

.nav-item {
    margin-bottom: 2px;
}

.nav-item a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--border-radius-sm);
    color: var(--gray-400);
    font-size: 13.5px;
    font-weight: 500;
    transition: var(--transition);
}

.nav-item a i {
    width: 20px;
    text-align: center;
    font-size: 15px;
    flex-shrink: 0;
}

.nav-item:hover a {
    color: white;
    background: rgba(255,255,255,0.06);
}

.nav-item.active a {
    color: white;
    background: var(--primary);
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light), var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 13px;
    font-weight: 600;
}

.user-role {
    font-size: 11px;
    color: var(--gray-400);
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    height: 100vh;
    display: flex;
    flex-direction: column;
    transition: var(--transition-slow);
}

/* ============================================
   Top Bar
   ============================================ */
.topbar {
    height: var(--topbar-height);
    background: white;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    flex-shrink: 0;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-toggle {
    display: none;
    font-size: 18px;
    color: var(--gray-600);
    padding: 8px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--gray-400);
}

.breadcrumb .active {
    color: var(--gray-800);
    font-weight: 600;
}

.breadcrumb i {
    font-size: 8px;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.topbar-btn {
    position: relative;
    padding: 8px 12px;
    border-radius: var(--border-radius-sm);
    color: var(--gray-600);
    font-size: 14px;
    transition: var(--transition);
}

.topbar-btn:hover {
    background: var(--gray-100);
    color: var(--gray-800);
}

.topbar-btn.btn-create {
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 13px;
    padding: 8px 16px;
}

.topbar-btn.btn-create:hover {
    background: var(--primary-dark);
    color: white;
}

.notification-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 16px;
    height: 16px;
    background: var(--accent-red);
    color: white;
    font-size: 9px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ============================================
   Page Container
   ============================================ */
.page-container {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.page {
    display: none;
    animation: fadeIn 0.3s ease;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Common Components
   ============================================ */

/* Page Header */
.page-header {
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.page-header p {
    font-size: 14px;
    color: var(--gray-500);
}

.page-header-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

/* Cards */
.card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 24px;
    transition: var(--transition);
}

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

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-800);
}

.card-subtitle {
    font-size: 12px;
    color: var(--gray-500);
    margin-top: 2px;
}

/* Stat Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.stat-icon.blue { background: #DBEAFE; color: #2563EB; }
.stat-icon.green { background: #D1FAE5; color: #059669; }
.stat-icon.purple { background: #EDE9FE; color: #7C3AED; }
.stat-icon.amber { background: #FEF3C7; color: #D97706; }
.stat-icon.pink { background: #FCE7F3; color: #DB2777; }
.stat-icon.red { background: #FEE2E2; color: #DC2626; }

.stat-info h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1;
}

.stat-info p {
    font-size: 13px;
    color: var(--gray-500);
    margin-top: 4px;
}

.stat-trend {
    font-size: 12px;
    font-weight: 600;
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-trend.up { color: var(--accent-green); }
.stat-trend.down { color: var(--accent-red); }

/* Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--border-radius-sm);
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
}

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

.btn-success {
    background: var(--accent-green);
    color: white;
}

.btn-success:hover {
    background: #059669;
}

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

.btn-danger:hover {
    background: #DC2626;
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

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

.btn-ghost {
    background: transparent;
    color: var(--gray-600);
    padding: 8px 12px;
}

.btn-ghost:hover {
    background: var(--gray-100);
    color: var(--gray-800);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 15px;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-sm);
}

/* Form Elements */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-label .required {
    color: var(--accent-red);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-sm);
    font-size: 13.5px;
    color: var(--gray-800);
    background: white;
    transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

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

.form-hint {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 4px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

/* Tags / Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
}

.badge-primary { background: var(--primary-bg); color: var(--primary); }
.badge-green { background: #D1FAE5; color: #059669; }
.badge-amber { background: #FEF3C7; color: #D97706; }
.badge-red { background: #FEE2E2; color: #DC2626; }
.badge-blue { background: #DBEAFE; color: #2563EB; }
.badge-purple { background: #EDE9FE; color: #7C3AED; }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }

/* Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-50);
}

.data-table td {
    padding: 12px 16px;
    font-size: 13px;
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
}

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

/* Tabs */
.tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 24px;
}

.tab {
    padding: 12px 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-500);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.tab:hover {
    color: var(--gray-700);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.2s ease;
}

/* Toggle Switch */
.toggle {
    position: relative;
    width: 44px;
    height: 24px;
    cursor: pointer;
}

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

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--gray-300);
    border-radius: 12px;
    transition: var(--transition);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: var(--transition);
}

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

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

/* Checkbox styled */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 13px;
    transition: var(--transition);
}

.checkbox-label:hover {
    border-color: var(--primary);
    background: var(--primary-bg);
}

.checkbox-label input:checked + .checkbox-text {
    color: var(--primary);
    font-weight: 600;
}

.checkbox-label:has(input:checked) {
    border-color: var(--primary);
    background: var(--primary-bg);
}

.checkbox-label input {
    accent-color: var(--primary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--gray-400);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 14px;
    max-width: 400px;
    margin: 0 auto 16px;
}

/* ============================================
   Upload Area
   ============================================ */
.upload-area {
    border: 2px dashed var(--gray-300);
    border-radius: var(--border-radius);
    padding: 40px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--primary);
    background: var(--primary-bg);
}

.upload-area i {
    font-size: 36px;
    color: var(--gray-400);
    margin-bottom: 12px;
}

.upload-area h4 {
    font-size: 15px;
    color: var(--gray-700);
    margin-bottom: 4px;
}

.upload-area p {
    font-size: 13px;
    color: var(--gray-400);
}

.upload-area input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.file-list {
    margin-top: 16px;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    margin-bottom: 8px;
    font-size: 13px;
}

.file-item-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.file-item i {
    font-size: 18px;
    color: var(--primary);
}

.file-item .file-name {
    font-weight: 500;
}

.file-item .file-size {
    color: var(--gray-400);
    font-size: 12px;
}

/* ============================================
   Selection Cards
   ============================================ */
.selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
}

.selection-card {
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 16px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.selection-card:hover {
    border-color: var(--primary-light);
    background: var(--primary-bg);
}

.selection-card.selected {
    border-color: var(--primary);
    background: var(--primary-bg);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.selection-card i {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 8px;
}

.selection-card h5 {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 4px;
}

.selection-card p {
    font-size: 11px;
    color: var(--gray-500);
    line-height: 1.4;
}

/* ============================================
   Workflow Steps
   ============================================ */
.workflow-steps {
    display: flex;
    align-items: center;
    gap: 0;
    overflow-x: auto;
    padding: 16px 0;
}

.workflow-step {
    display: flex;
    align-items: center;
    gap: 0;
    flex-shrink: 0;
}

.step-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 12px;
    min-width: 100px;
}

.step-circle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gray-200);
    color: var(--gray-500);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: var(--transition);
}

.step-node.active .step-circle {
    background: var(--primary);
    color: white;
}

.step-node.completed .step-circle {
    background: var(--accent-green);
    color: white;
}

.step-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--gray-500);
    text-align: center;
}

.step-node.active .step-label,
.step-node.completed .step-label {
    color: var(--gray-800);
}

.step-connector {
    width: 40px;
    height: 2px;
    background: var(--gray-200);
    flex-shrink: 0;
}

.step-connector.completed {
    background: var(--accent-green);
}

/* ============================================
   Article Content Display
   ============================================ */
.article-preview {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 32px 40px;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
}

.article-preview h1 {
    font-size: 28px;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 8px;
    line-height: 1.3;
}

.article-preview .subtitle {
    font-size: 16px;
    color: var(--gray-500);
    margin-bottom: 24px;
    font-style: italic;
}

.article-preview h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-800);
    margin: 28px 0 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--primary-bg);
}

.article-preview p {
    margin-bottom: 14px;
    color: var(--gray-700);
}

.article-preview ul, .article-preview ol {
    margin: 12px 0;
    padding-left: 24px;
}

.article-preview li {
    margin-bottom: 6px;
    list-style: disc;
}

.article-preview strong {
    color: var(--gray-900);
}

/* ============================================
   Editor Toolbar
   ============================================ */
.editor-toolbar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-sm) var(--border-radius-sm) 0 0;
    flex-wrap: wrap;
}

.editor-toolbar .divider {
    width: 1px;
    height: 24px;
    background: var(--gray-300);
    margin: 0 4px;
}

.editor-toolbar button {
    padding: 6px 10px;
    border-radius: 4px;
    color: var(--gray-600);
    font-size: 13px;
    transition: var(--transition);
}

.editor-toolbar button:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

.editor-toolbar button.active {
    background: var(--primary-bg);
    color: var(--primary);
}

.editor-body {
    border: 1px solid var(--gray-200);
    border-top: none;
    border-radius: 0 0 var(--border-radius-sm) var(--border-radius-sm);
    min-height: 500px;
    padding: 24px;
    outline: none;
    line-height: 1.7;
    font-size: 14px;
}

.editor-body:focus {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* ============================================
   Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    backdrop-filter: blur(4px);
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: white;
    border-radius: var(--border-radius);
    width: 100%;
    max-width: 640px;
    max-height: 85vh;
    overflow-y: auto;
    animation: modalIn 0.2s ease;
}

.modal-lg { max-width: 900px; }
.modal-xl { max-width: 1100px; }

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

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

.modal-header h2 {
    font-size: 18px;
    font-weight: 700;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    color: var(--gray-400);
    font-size: 16px;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--gray-100);
    color: var(--gray-700);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
}

/* ============================================
   Toast Notifications
   ============================================ */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
    min-width: 320px;
    animation: toastIn 0.3s ease;
    font-size: 13px;
}

.toast.success { border-left: 4px solid var(--accent-green); }
.toast.error { border-left: 4px solid var(--accent-red); }
.toast.warning { border-left: 4px solid var(--accent-amber); }
.toast.info { border-left: 4px solid var(--secondary); }

@keyframes toastIn {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ============================================
   Loading Overlay
   ============================================ */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.9);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
}

.loading-overlay.active {
    display: flex;
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

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

.loading-text {
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 12px;
}

.loading-progress {
    width: 300px;
    height: 6px;
    background: var(--gray-200);
    border-radius: 3px;
    overflow: hidden;
}

.loading-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 3px;
    width: 0%;
    transition: width 0.3s ease;
}

/* ============================================
   Dashboard Specific
   ============================================ */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

.recent-articles-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.recent-article-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px;
    background: var(--gray-50);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.recent-article-item:hover {
    background: var(--primary-bg);
}

.article-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.article-status-dot.published { background: var(--accent-green); }
.article-status-dot.review { background: var(--accent-amber); }
.article-status-dot.draft { background: var(--gray-400); }
.article-status-dot.generating { background: var(--secondary); }

.article-meta {
    flex: 1;
}

.article-meta h4 {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 3px;
}

.article-meta p {
    font-size: 12px;
    color: var(--gray-400);
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.quick-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 12px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.quick-action:hover {
    border-color: var(--primary);
    background: var(--primary-bg);
    transform: translateY(-2px);
}

.quick-action i {
    font-size: 20px;
    color: var(--primary);
}

.quick-action span {
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-700);
}

/* ============================================
   Article Builder Specific
   ============================================ */
.builder-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 24px;
}

.builder-section {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 24px;
    margin-bottom: 20px;
}

.builder-section-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.builder-section-header i {
    font-size: 16px;
    color: var(--primary);
}

.builder-section-header h3 {
    font-size: 15px;
    font-weight: 600;
}

.builder-section-header .step-num {
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
}

.builder-sidebar {
    position: sticky;
    top: 0;
}

.builder-summary {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 20px;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 13px;
}

.summary-item:last-child {
    border-bottom: none;
}

.summary-label {
    color: var(--gray-500);
}

.summary-value {
    font-weight: 600;
    color: var(--gray-800);
    text-align: right;
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ============================================
   Customization Specific
   ============================================ */
.config-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: pointer;
    transition: var(--transition);
}

.config-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.config-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.config-info h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 2px;
}

.config-info p {
    font-size: 12px;
    color: var(--gray-500);
}

.config-count {
    margin-left: auto;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

/* ============================================
   Workflow Builder
   ============================================ */
.workflow-canvas {
    background: var(--gray-50);
    border: 2px dashed var(--gray-200);
    border-radius: var(--border-radius);
    min-height: 300px;
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0;
}

.workflow-node {
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 16px 20px;
    text-align: center;
    min-width: 120px;
    cursor: grab;
    transition: var(--transition);
}

.workflow-node:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.workflow-node i {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: 8px;
}

.workflow-node .node-title {
    font-size: 12px;
    font-weight: 600;
}

.workflow-arrow {
    color: var(--gray-400);
    font-size: 20px;
    margin: 0 8px;
}

/* ============================================
   Search & Filters
   ============================================ */
.search-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.search-input-wrapper {
    position: relative;
    flex: 1;
}

.search-input-wrapper i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 14px;
}

.search-input {
    width: 100%;
    padding: 10px 14px 10px 40px;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-sm);
    font-size: 13.5px;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

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

.filter-chip {
    padding: 6px 14px;
    border: 1px solid var(--gray-200);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filter-chip:hover,
.filter-chip.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ============================================
   Chart Container
   ============================================ */
.chart-container {
    position: relative;
    width: 100%;
    height: 300px;
}

.chart-container canvas {
    width: 100% !important;
    height: 100% !important;
}

/* ============================================
   Infographic Preview
   ============================================ */
.infographic-preview {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--border-radius);
    padding: 32px;
    color: white;
    text-align: center;
}

.infographic-preview h3 {
    font-size: 20px;
    margin-bottom: 24px;
}

.infographic-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.infographic-stat {
    background: rgba(255,255,255,0.15);
    border-radius: var(--border-radius-sm);
    padding: 20px;
}

.infographic-stat .value {
    font-size: 32px;
    font-weight: 800;
}

.infographic-stat .label {
    font-size: 12px;
    opacity: 0.8;
    margin-top: 4px;
}

/* ============================================
   Export Options
   ============================================ */
.export-options {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
}

.export-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 24px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.export-option:hover {
    border-color: var(--primary);
    background: var(--primary-bg);
    transform: translateY(-2px);
}

.export-option i {
    font-size: 28px;
    color: var(--primary);
}

.export-option span {
    font-size: 13px;
    font-weight: 600;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1200px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .dashboard-grid { grid-template-columns: 1fr; }
    .builder-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .topbar-btn span {
        display: none;
    }
    
    .selection-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .page-container {
        padding: 16px;
    }
    
    .article-preview {
        padding: 20px;
    }
    
    .infographic-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Color Dot for Industries
   ============================================ */
.color-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

/* ============================================
   Progress Bar
   ============================================ */
.progress-bar {
    height: 6px;
    background: var(--gray-200);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.5s ease;
}

/* ============================================
   Prompt Editor
   ============================================ */
.prompt-editor {
    font-family: 'Courier New', monospace;
    background: var(--gray-900);
    color: #10B981;
    border-radius: var(--border-radius-sm);
    padding: 16px;
    min-height: 200px;
    font-size: 13px;
    line-height: 1.6;
    resize: vertical;
    border: none;
    width: 100%;
}

.prompt-editor:focus {
    outline: 2px solid var(--primary);
}

/* Variable tags in prompts */
.var-tag {
    display: inline-block;
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-light);
    padding: 1px 6px;
    border-radius: 3px;
    font-size: 12px;
    font-family: 'Courier New', monospace;
}

/* ============================================
   Persona Cards
   ============================================ */
.persona-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 12px;
}

.persona-attr {
    padding: 10px;
    background: var(--gray-50);
    border-radius: var(--border-radius-xs);
}

.persona-attr .attr-label {
    font-size: 11px;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.persona-attr .attr-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
}

/* ============================================
   Animation Utilities
   ============================================ */
.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.animate-bounce {
    animation: bounce 1s ease infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

/* ============================================
   Drag & Drop
   ============================================ */
.draggable {
    cursor: grab;
}

.draggable:active {
    cursor: grabbing;
}

.drag-over {
    border-color: var(--primary) !important;
    background: var(--primary-bg) !important;
}

/* ============================================
   Skeleton Loading
   ============================================ */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: skeleton 1.5s ease-in-out infinite;
    border-radius: var(--border-radius-xs);
}

@keyframes skeleton {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ============================================
   Section divider
   ============================================ */
.section-divider {
    height: 1px;
    background: var(--gray-200);
    margin: 24px 0;
}

/* ============================================
   Card Action Buttons (hover reveal)
   ============================================ */
.card .card-actions {
    opacity: 0;
    transition: opacity 0.2s ease;
}

.card:hover .card-actions {
    opacity: 1;
}

.card .card-actions .btn-ghost {
    width: 30px;
    height: 30px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    background: rgba(255,255,255,0.9);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.card .card-actions .btn-ghost:hover {
    background: white;
    box-shadow: var(--shadow-sm);
    transform: scale(1.1);
}

/* Infographic stats auto-columns for Templates */
.infographic-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 20px;
}

/* ============================================
   Source-Mode Tabs (Article Builder Step 1)
   ============================================ */
.source-tabs {
    display: flex;
    gap: 0;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    margin-bottom: 20px;
}

.source-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-600);
    background: white;
    border-right: 1px solid var(--gray-200);
    cursor: pointer;
    transition: var(--transition);
}

.source-tab:last-child {
    border-right: none;
}

.source-tab:hover {
    background: var(--gray-50);
    color: var(--gray-800);
}

.source-tab.active {
    background: var(--primary);
    color: white;
    font-weight: 600;
}

.source-tab.active i {
    color: white;
}

.source-tab i {
    font-size: 14px;
    color: var(--gray-400);
    transition: var(--transition);
}

.source-tab:hover i {
    color: var(--gray-600);
}

/* Source Panels */
.source-panel {
    display: none;
    animation: fadeInUp 0.25s ease;
}

.source-panel.active {
    display: block;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Article Length Options (Article Builder Step 5)
   ============================================ */
.length-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.length-option {
    position: relative;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    overflow: hidden;
}

.length-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.length-option:hover {
    border-color: var(--primary-light);
    background: var(--primary-bg);
}

.length-option.active {
    border-color: var(--primary);
    background: var(--primary-bg);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.length-body {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
}

.length-icon {
    width: 38px;
    height: 38px;
    background: var(--gray-100);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    color: var(--gray-500);
    flex-shrink: 0;
    transition: var(--transition);
}

.length-option.active .length-icon {
    background: var(--primary);
    color: white;
}

.length-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.length-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-800);
}

.length-desc {
    font-size: 11px;
    color: var(--gray-400);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Custom word-count slider */
#customWordSlider {
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: var(--gray-200);
    border-radius: 3px;
    outline: none;
}

#customWordSlider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    border: 3px solid white;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

#customWordSlider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: var(--shadow);
}

#customWordSlider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    border: 3px solid white;
    box-shadow: var(--shadow-sm);
}

/* ============================================
   Form Textarea (Paste mode)
   ============================================ */
.form-textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    font-size: 13px;
    color: var(--gray-800);
    background: white;
    resize: vertical;
    line-height: 1.6;
    transition: var(--transition);
    font-family: 'Inter', sans-serif;
}

.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-textarea::placeholder {
    color: var(--gray-400);
}

.form-hint {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 6px;
}

/* ============================================
   Responsive overrides for Article Builder
   ============================================ */
@media (max-width: 768px) {
    .length-options {
        grid-template-columns: repeat(2, 1fr);
    }
    .source-tabs {
        flex-direction: column;
    }
    .source-tab {
        border-right: none;
        border-bottom: 1px solid var(--gray-200);
    }
    .source-tab:last-child {
        border-bottom: none;
    }
}

@media (max-width: 480px) {
    .length-options {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Research Library — Folder Layout
   ============================================ */
.rl-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 24px;
    align-items: start;
}

/* Folder Sidebar */
.rl-sidebar {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 12px 0;
    position: sticky;
    top: 0;
}

.rl-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 16px 12px;
    border-bottom: 1px solid var(--gray-100);
    margin-bottom: 4px;
}

.rl-folder-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 16px;
    cursor: pointer;
    font-size: 13px;
    color: var(--gray-700);
    transition: var(--transition);
    position: relative;
}

.rl-folder-item:hover {
    background: var(--gray-50);
}

.rl-folder-item.active {
    background: var(--primary-bg);
    color: var(--primary-dark);
    font-weight: 600;
    border-right: 3px solid var(--primary);
}

.rl-folder-item i {
    font-size: 14px;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

.rl-folder-name {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.rl-folder-count {
    font-size: 11px;
    color: var(--gray-400);
    background: var(--gray-100);
    border-radius: 10px;
    padding: 2px 8px;
    min-width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.rl-folder-item.active .rl-folder-count {
    background: var(--primary);
    color: white;
}

.rl-folder-actions {
    display: none;
    gap: 2px;
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
}

.rl-folder-item:hover .rl-folder-actions {
    display: flex;
}

.rl-folder-item:hover .rl-folder-count {
    display: none;
}

.rl-folder-actions .btn-ghost {
    width: 22px;
    height: 22px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    color: var(--gray-500);
}

.rl-folder-actions .btn-ghost:hover {
    background: var(--gray-200);
}

.rl-folder-divider {
    height: 1px;
    background: var(--gray-100);
    margin: 6px 16px;
}

/* Main Content Area */
.rl-main {
    min-width: 0;
}

.rl-content-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.rl-breadcrumb {
    display: flex;
    align-items: center;
    font-size: 14px;
    font-weight: 600;
}

.rl-bc-link {
    color: var(--primary);
    cursor: pointer;
    font-weight: 500;
}

.rl-bc-link:hover {
    text-decoration: underline;
}

.rl-bc-current {
    color: var(--gray-800);
}

.rl-folder-banner {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    padding: 12px 18px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
}

/* Folder badge on file rows */
.rl-folder-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    background: color-mix(in srgb, var(--fc) 10%, transparent);
    color: var(--fc);
    border: 1px solid color-mix(in srgb, var(--fc) 20%, transparent);
    transition: var(--transition);
}

.rl-folder-badge:hover {
    background: color-mix(in srgb, var(--fc) 18%, transparent);
}

/* Move-to-folder grid */
.rl-move-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
}

.rl-move-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
}

.rl-move-option:hover {
    border-color: var(--primary-light);
    background: var(--primary-bg);
}

.rl-move-option.active {
    border-color: var(--primary);
    background: var(--primary-bg);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.rl-move-option i {
    font-size: 16px;
}

/* ============================================
   Article Builder — Folder Selector (Step 7)
   ============================================ */
.ab-folder-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 10px;
}

.ab-folder-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.ab-folder-card:hover {
    border-color: var(--primary-light);
    background: var(--gray-50);
}

.ab-folder-card.selected {
    border-color: var(--primary);
    background: var(--primary-bg);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.ab-folder-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

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

.ab-folder-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-800);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ab-folder-meta {
    font-size: 11px;
    color: var(--gray-400);
    margin-top: 1px;
}

.ab-folder-check {
    color: var(--gray-300);
    font-size: 16px;
    flex-shrink: 0;
    transition: var(--transition);
}

.ab-folder-card.selected .ab-folder-check {
    color: var(--primary);
}

/* ============================================
   Article Builder — AI Model Selector (Step 8)
   ============================================ */
.ai-model-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}

.ai-model-card {
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 16px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    background: white;
}

.ai-model-card:hover {
    border-color: var(--primary-light);
    background: var(--gray-50);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.ai-model-card.selected {
    border-color: var(--primary);
    background: var(--primary-bg);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.14);
}

.ai-model-top {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 10px;
}

.ai-model-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.ai-model-badges {
    display: flex;
    align-items: center;
    gap: 5px;
    flex-wrap: wrap;
    flex: 1;
    justify-content: flex-end;
}

.ai-tier-badge {
    display: inline-block;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 2px 7px;
    border-radius: 4px;
    text-transform: uppercase;
}

.ai-tier-badge.free {
    background: #ecfdf5;
    color: #059669;
    border: 1px solid #a7f3d0;
}

.ai-tier-badge.paid {
    background: #fef3c7;
    color: #b45309;
    border: 1px solid #fde68a;
}

.ai-badge-search {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 5px;
    background: #e0f2fe;
    color: #0284c7;
    font-size: 10px;
}

.ai-badge-key {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 5px;
    background: #fef3c7;
    color: #b45309;
    font-size: 10px;
}

.ai-model-check {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 18px;
    color: var(--gray-300);
    transition: var(--transition);
}

.ai-model-card.selected .ai-model-check {
    color: var(--primary);
}

.ai-model-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 2px;
}

.ai-model-provider {
    font-size: 11px;
    color: var(--gray-400);
    font-weight: 500;
    margin-bottom: 6px;
}

.ai-model-desc {
    font-size: 12px;
    color: var(--gray-500);
    line-height: 1.5;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ai-key-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 100%;
    padding: 6px 10px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 6px;
    border: 1px solid var(--gray-200);
    background: white;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
}

.ai-key-btn:hover {
    border-color: var(--primary-light);
    color: var(--primary);
    background: var(--primary-bg);
}

.ai-key-btn.ai-key-free {
    border: none;
    background: #f0fdf4;
    color: #059669;
    cursor: default;
    pointer-events: none;
}

/* Legend row */
.ai-tier-legend {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: var(--gray-500);
    padding: 3px 8px;
    background: var(--gray-50);
    border-radius: 6px;
}

.ai-tier-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.ai-tier-dot.free {
    background: #10b981;
}

.ai-tier-dot.paid {
    background: #f59e0b;
}

/* ============================================
   Article Builder — Content Scope (Step 9)
   ============================================ */
.content-scope-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.content-scope-card {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 18px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    background: white;
    position: relative;
}

.content-scope-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.content-scope-card:hover {
    border-color: var(--primary-light);
    background: var(--gray-50);
}

.content-scope-card.active {
    border-color: var(--primary);
    background: var(--primary-bg);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.scope-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    color: var(--gray-500);
    flex-shrink: 0;
    transition: var(--transition);
}

.content-scope-card.active .scope-icon {
    background: var(--primary);
    color: white;
}

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

.scope-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 4px;
    display: block;
}

.scope-desc {
    font-size: 12px;
    color: var(--gray-500);
    line-height: 1.5;
}

/* Search Depth */
.search-depth-option {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 10px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    background: white;
    text-align: center;
    position: relative;
}

.search-depth-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.search-depth-option:hover {
    border-color: var(--secondary);
    background: #f0f9ff;
}

.search-depth-option.active {
    border-color: var(--secondary);
    background: #f0f9ff;
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.12);
}

.depth-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
}

.depth-desc {
    font-size: 11px;
    color: var(--gray-400);
}

/* ============================================
   Responsive — AI Models & Content Scope
   ============================================ */
@media (max-width: 768px) {
    .ai-model-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }
    .search-depth-option {
        padding: 10px 6px;
    }
}

@media (max-width: 480px) {
    .ai-model-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Responsive — Research Library
   ============================================ */
@media (max-width: 1024px) {
    .rl-layout {
        grid-template-columns: 220px 1fr;
    }
}

@media (max-width: 768px) {
    .rl-layout {
        grid-template-columns: 1fr;
    }
    .rl-sidebar {
        position: static;
    }
    .rl-content-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .ab-folder-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Social & Promo Content Generator
   ============================================ */

/* Step cards */
.sc-step-card {
    margin-bottom: 20px;
}

.sc-step-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.sc-step-header h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-800);
    margin: 0;
}

.sc-step-desc {
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 14px;
}

/* Article selector grid */
.sc-article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 10px;
    max-height: 340px;
    overflow-y: auto;
    padding: 2px;
}

.sc-article-card {
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    padding: 14px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    background: white;
}

.sc-article-card:hover {
    border-color: var(--primary-light);
    background: var(--gray-50);
}

.sc-article-card.selected {
    border-color: var(--primary);
    background: var(--primary-bg);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.sc-art-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.sc-art-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
    line-height: 1.4;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sc-art-meta {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.sc-art-check {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 18px;
    color: var(--gray-200);
    transition: var(--transition);
}

.sc-article-card.selected .sc-art-check {
    color: var(--primary);
}

/* Platform bar */
.sc-platform-bar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.sc-platform-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    background: white;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-600);
    transition: var(--transition);
}

.sc-platform-btn:hover {
    border-color: var(--pc, var(--primary));
    color: var(--pc, var(--primary));
    background: color-mix(in srgb, var(--pc, var(--primary)) 6%, white);
}

.sc-platform-btn.active {
    border-color: var(--pc, var(--primary));
    color: var(--pc, var(--primary));
    background: color-mix(in srgb, var(--pc, var(--primary)) 8%, white);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--pc, var(--primary)) 12%, transparent);
    font-weight: 600;
}

.sc-platform-btn i {
    font-size: 16px;
}

/* Content type grid */
.sc-type-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 10px;
}

.sc-type-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    background: white;
    position: relative;
}

.sc-type-card:hover {
    border-color: var(--primary-light);
    background: var(--gray-50);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.sc-type-card.selected {
    border-color: var(--primary);
    background: var(--primary-bg);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.sc-type-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

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

.sc-type-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 2px;
}

.sc-type-desc {
    font-size: 11px;
    color: var(--gray-500);
    line-height: 1.4;
}

.sc-type-check {
    font-size: 16px;
    color: var(--gray-200);
    flex-shrink: 0;
    transition: var(--transition);
}

.sc-type-card.selected .sc-type-check {
    color: var(--primary);
}

/* Tone grid */
.sc-tone-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 10px;
}

.sc-tone-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 16px 12px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    background: white;
}

.sc-tone-card:hover {
    border-color: var(--primary-light);
    background: var(--gray-50);
}

.sc-tone-card.selected {
    border-color: var(--primary);
    background: var(--primary-bg);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.sc-tone-card i {
    font-size: 20px;
    color: var(--gray-400);
    transition: var(--transition);
}

.sc-tone-card.selected i {
    color: var(--primary);
}

.sc-tone-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-800);
}

.sc-tone-desc {
    font-size: 11px;
    color: var(--gray-400);
    line-height: 1.4;
}

/* Results tabs */
.sc-results-tabs {
    display: flex;
    gap: 4px;
    overflow-x: auto;
    padding-bottom: 4px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--gray-100);
}

.sc-result-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    color: var(--gray-500);
    border-bottom: 2px solid transparent;
    white-space: nowrap;
    transition: var(--transition);
}

.sc-result-tab:hover {
    color: var(--tc, var(--primary));
}

.sc-result-tab.active {
    color: var(--tc, var(--primary));
    border-bottom-color: var(--tc, var(--primary));
    font-weight: 600;
}

.sc-result-tab i {
    font-size: 13px;
}

.sc-result-panel {
    display: none;
}

.sc-result-panel.active {
    display: block;
    animation: fadeInPanel 0.25s ease;
}

@keyframes fadeInPanel {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Content block */
.sc-content-block {
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.sc-content-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 16px;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-100);
    flex-wrap: wrap;
}

.sc-content-body {
    padding: 18px;
    font-size: 13px;
    color: var(--gray-700);
    line-height: 1.8;
}

.sc-content-body p {
    margin-bottom: 8px;
}

.sc-content-body ul,
.sc-content-body ol {
    padding-left: 20px;
    margin-bottom: 8px;
}

.sc-content-body li {
    margin-bottom: 4px;
}

/* Carousel preview */
.sc-carousel-wrapper {
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.sc-carousel-track {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 16px;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.sc-carousel-track::-webkit-scrollbar {
    display: none;
}

.sc-carousel-slide {
    flex: 0 0 300px;
    min-height: 380px;
    border-radius: 12px;
    background: linear-gradient(145deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: white;
    display: flex;
    flex-direction: column;
    padding: 24px;
    scroll-snap-align: start;
    position: relative;
}

.sc-slide-num {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.5;
    margin-bottom: 16px;
}

.sc-slide-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.sc-slide-title {
    font-size: 22px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 12px;
}

.sc-slide-subtitle {
    font-size: 14px;
    opacity: 0.7;
    line-height: 1.5;
}

.sc-slide-heading {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.3;
}

.sc-slide-body {
    font-size: 14px;
    line-height: 1.7;
    opacity: 0.85;
}

.sc-slide-body p { margin-bottom: 8px; }
.sc-slide-body ul { padding-left: 18px; }
.sc-slide-body li { margin-bottom: 6px; }

.sc-slide-cta {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.sc-slide-cta h3 {
    font-size: 20px;
    font-weight: 700;
}

.sc-slide-cta p {
    font-size: 14px;
    opacity: 0.8;
    line-height: 1.6;
}

/* Library grid */
.sc-lib-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 14px;
}

.sc-lib-card {
    transition: var(--transition);
}

.sc-lib-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.sc-library-filters {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* Responsive — Social Content */
@media (max-width: 1024px) {
    .sc-type-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }
}

@media (max-width: 768px) {
    .sc-article-grid {
        grid-template-columns: 1fr;
        max-height: 260px;
    }
    .sc-type-grid {
        grid-template-columns: 1fr;
    }
    .sc-tone-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
    .sc-platform-bar {
        flex-direction: column;
    }
    .sc-carousel-slide {
        flex: 0 0 260px;
        min-height: 320px;
        padding: 18px;
    }
    .sc-lib-grid {
        grid-template-columns: 1fr;
    }
    .sc-content-toolbar {
        flex-direction: column;
        align-items: flex-start;
    }
    .sc-library-filters {
        flex-direction: column;
        align-items: flex-start;
    }
}