/* ==========================================
   VisitSyria CMS - Modern Admin Theme
   ========================================== */

/* ==========================================
   CSS Variables (Design Tokens)
   ========================================== */
:root {
    /* Primary Colors */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;
    
    /* 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;
    
    /* Semantic Colors */
    --success-50: #ecfdf5;
    --success-500: #22c55e;
    --success-600: #16a34a;
    
    --warning-50: #fffbeb;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
    
    --error-50: #fef2f2;
    --error-500: #ef4444;
    --error-600: #dc2626;
    
    --info-50: #eff6ff;
    --info-500: #3b82f6;
    --info-600: #2563eb;
    
    /* Layout */
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 80px;
    --header-height: 64px;
    --content-max-width: 1400px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-700);
}

img {
    max-width: 100%;
    height: auto;
}

/* ==========================================
   Typography
   ========================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--gray-900);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

.text-muted { color: var(--gray-500); }
.text-primary { color: var(--primary-600); }
.text-success { color: var(--success-600); }
.text-warning { color: var(--warning-600); }
.text-error { color: var(--error-600); }

/* ==========================================
   Layout - App Shell
   ========================================== */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.app-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: linear-gradient(180deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: white;
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: width var(--transition-slow);
    overflow: hidden;
}

.app-sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left var(--transition-slow);
}

.sidebar-collapsed .app-main {
    margin-left: var(--sidebar-collapsed-width);
}

.app-header {
    position: sticky;
    top: 0;
    height: var(--header-height);
    background: white;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-6);
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.app-content {
    flex: 1;
    padding: var(--spacing-6);
    max-width: var(--content-max-width);
    width: 100%;
    margin: 0 auto;
}

/* ==========================================
   Sidebar Navigation
   ========================================== */
.sidebar-header {
    padding: var(--spacing-6);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: white;
}

.sidebar-logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-700) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
}

.sidebar-nav {
    flex: 1;
    padding: var(--spacing-4) 0;
    overflow-y: auto;
}

.nav-section {
    padding: var(--spacing-2) var(--spacing-4);
}

.nav-section-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-400);
    padding: var(--spacing-2) var(--spacing-4);
    margin-bottom: var(--spacing-1);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    margin: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-lg);
    color: var(--gray-300);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: pointer;
}

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

.nav-item.active {
    background: var(--primary-600);
    color: white;
}

.nav-item-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.nav-item-badge {
    margin-left: auto;
    background: var(--primary-500);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.sidebar-footer {
    padding: var(--spacing-4);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    border-radius: var(--radius-lg);
    transition: background var(--transition-fast);
}

.sidebar-user:hover {
    background: rgba(255, 255, 255, 0.1);
}

.sidebar-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--primary-500);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

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

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

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

/* ==========================================
   Header
   ========================================== */
.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.header-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--gray-600);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.header-toggle:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.header-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.header-breadcrumb a {
    color: var(--gray-500);
}

.header-breadcrumb a:hover {
    color: var(--primary-600);
}

.header-breadcrumb-separator {
    color: var(--gray-300);
}

.header-breadcrumb-current {
    color: var(--gray-900);
    font-weight: 500;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.header-search {
    position: relative;
    width: 300px;
}

.header-search-input {
    width: 100%;
    height: 40px;
    padding: 0 var(--spacing-4) 0 40px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    background: var(--gray-50);
    transition: all var(--transition-fast);
}

.header-search-input:focus {
    outline: none;
    border-color: var(--primary-500);
    background: white;
    box-shadow: 0 0 0 3px var(--primary-100);
}

.header-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    width: 18px;
    height: 18px;
}

.header-icon-btn {
    position: relative;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--gray-600);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.header-icon-btn:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.header-icon-btn .badge {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 18px;
    height: 18px;
    background: var(--error-500);
    color: white;
    font-size: 10px;
    font-weight: 600;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-5);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-sm {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-6);
    font-size: var(--font-size-base);
}

.btn-primary {
    background: var(--primary-600);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-700);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gray-200);
}

.btn-success {
    background: var(--success-600);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: var(--success-500);
}

.btn-warning {
    background: var(--warning-500);
    color: white;
}

.btn-warning:hover:not(:disabled) {
    background: var(--warning-600);
}

.btn-danger {
    background: var(--error-600);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: var(--error-500);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover:not(:disabled) {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

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

.btn-ghost:hover:not(:disabled) {
    background: var(--gray-100);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
}

/* ==========================================
   Cards
   ========================================== */
.card {
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.card-header {
    padding: var(--spacing-5) var(--spacing-6);
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
}

.card-body {
    padding: var(--spacing-6);
}

.card-footer {
    padding: var(--spacing-4) var(--spacing-6);
    border-top: 1px solid var(--gray-100);
    background: var(--gray-50);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

/* ==========================================
   Forms
   ========================================== */
.form-group {
    margin-bottom: var(--spacing-5);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
}

.form-label.required::after {
    content: '*';
    color: var(--error-500);
    margin-left: var(--spacing-1);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-sm);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    background: white;
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
    border-color: var(--error-500);
}

.form-input.error:focus,
.form-select.error:focus,
.form-textarea.error:focus {
    box-shadow: 0 0 0 3px var(--error-50);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-hint {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
    margin-top: var(--spacing-1);
}

.form-error {
    font-size: var(--font-size-xs);
    color: var(--error-600);
    margin-top: var(--spacing-1);
}

.form-checkbox,
.form-radio {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    cursor: pointer;
}

.form-checkbox input,
.form-radio input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-600);
}

/* ==========================================
   Tables
   ========================================== */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.table th {
    text-align: left;
    padding: var(--spacing-4) var(--spacing-5);
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-600);
    border-bottom: 1px solid var(--gray-200);
    white-space: nowrap;
}

.table td {
    padding: var(--spacing-4) var(--spacing-5);
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
}

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

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

.table-actions {
    display: flex;
    gap: var(--spacing-2);
}

/* ==========================================
   Badges & Status
   ========================================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
}

.badge-primary {
    background: var(--primary-100);
    color: var(--primary-700);
}

.badge-success {
    background: var(--success-50);
    color: var(--success-600);
}

.badge-warning {
    background: var(--warning-50);
    color: var(--warning-600);
}

.badge-error {
    background: var(--error-50);
    color: var(--error-600);
}

.badge-gray {
    background: var(--gray-100);
    color: var(--gray-600);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
}

.status-dot.active {
    background: var(--success-500);
}

.status-dot.draft {
    background: var(--warning-500);
}

.status-dot.archived {
    background: var(--gray-400);
}

/* ==========================================
   Stats Cards
   ========================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-6);
}

.stat-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-4);
    transition: all var(--transition-fast);
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon.primary {
    background: var(--primary-100);
    color: var(--primary-600);
}

.stat-icon.success {
    background: var(--success-50);
    color: var(--success-600);
}

.stat-icon.warning {
    background: var(--warning-50);
    color: var(--warning-600);
}

.stat-icon.info {
    background: var(--info-50);
    color: var(--info-600);
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin-top: var(--spacing-1);
}

.stat-trend {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-2);
}

.stat-trend.up {
    color: var(--success-600);
}

.stat-trend.down {
    color: var(--error-600);
}

/* ==========================================
   Page Header
   ========================================== */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-6);
    flex-wrap: wrap;
    gap: var(--spacing-4);
}

.page-header-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.page-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
}

.page-subtitle {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.page-actions {
    display: flex;
    gap: var(--spacing-3);
}

/* ==========================================
   Empty State
   ========================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-12);
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-5);
    background: var(--gray-100);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
}

.empty-state-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-2);
}

.empty-state-description {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin-bottom: var(--spacing-6);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ==========================================
   Pagination
   ========================================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4) var(--spacing-6);
    border-top: 1px solid var(--gray-100);
}

.pagination-info {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.pagination-pages {
    display: flex;
    gap: var(--spacing-2);
}

.pagination-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 var(--spacing-3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-600);
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--gray-50);
    border-color: var(--gray-300);
}

.pagination-btn.active {
    background: var(--primary-600);
    border-color: var(--primary-600);
    color: white;
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ==========================================
   Modal
   ========================================== */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-6);
    animation: fadeIn 0.2s ease;
}

.modal {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease;
}

.modal-lg {
    max-width: 800px;
}

.modal-header {
    padding: var(--spacing-5) var(--spacing-6);
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--gray-400);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--gray-100);
    color: var(--gray-600);
}

.modal-body {
    padding: var(--spacing-6);
    overflow-y: auto;
}

.modal-footer {
    padding: var(--spacing-4) var(--spacing-6);
    border-top: 1px solid var(--gray-100);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-3);
}

/* ==========================================
   Dropdown
   ========================================== */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 180px;
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    animation: slideDown 0.15s ease;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--gray-700);
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

.dropdown-item.danger {
    color: var(--error-600);
}

.dropdown-divider {
    height: 1px;
    background: var(--gray-100);
    margin: var(--spacing-2) 0;
}

/* ==========================================
   Tabs
   ========================================== */
.tabs {
    display: flex;
    gap: var(--spacing-1);
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: var(--spacing-6);
}

.tab {
    padding: var(--spacing-3) var(--spacing-5);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-500);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: -1px;
}

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

.tab.active {
    color: var(--primary-600);
    border-bottom-color: var(--primary-600);
}

/* ==========================================
   Loading States
   ========================================== */
.loading-spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary-600);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

.loading-spinner.sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.loading-spinner.lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

.loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

/* ==========================================
   Filters & Search
   ========================================== */
.filters-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-4) var(--spacing-6);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.filters-search {
    flex: 1;
    min-width: 200px;
    max-width: 400px;
    position: relative;
}

.filters-search .form-input {
    padding-left: 40px;
}

.filters-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    width: 18px;
    height: 18px;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.filter-label {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    white-space: nowrap;
}

/* ==========================================
   Media Library
   ========================================== */
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--spacing-4);
}

.media-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--gray-100);
    aspect-ratio: 1;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.media-item:hover .media-overlay {
    opacity: 1;
}

.media-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.media-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.media-item.selected {
    ring: 3px solid var(--primary-500);
}

.media-item.selected::after {
    content: '✓';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    background: var(--primary-500);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

/* ==========================================
   File Upload
   ========================================== */
.upload-zone {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-xl);
    padding: var(--spacing-10);
    text-align: center;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary-500);
    background: var(--primary-50);
}

.upload-zone-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-4);
    color: var(--gray-400);
}

.upload-zone-title {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
}

.upload-zone-subtitle {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

/* ==========================================
   Alerts
   ========================================== */
.alert {
    padding: var(--spacing-4) var(--spacing-5);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.alert-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 2px;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: var(--spacing-1);
}

.alert-message {
    font-size: var(--font-size-sm);
}

.alert-success {
    background: var(--success-50);
    color: var(--success-600);
}

.alert-warning {
    background: var(--warning-50);
    color: var(--warning-600);
}

.alert-error {
    background: var(--error-50);
    color: var(--error-600);
}

.alert-info {
    background: var(--info-50);
    color: var(--info-600);
}

/* ==========================================
   Login Page
   ========================================== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-800) 100%);
    padding: var(--spacing-6);
}

.login-card {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--spacing-10);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-xl);
}

.login-logo {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.login-logo-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-700) 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-4);
    color: white;
    font-size: 28px;
}

.login-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-1);
}

.login-subtitle {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

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

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

/* ==========================================
   Not Found Page
   ========================================== */
.not-found-container {
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-6);
}

.not-found-content {
    text-align: center;
}

.not-found-content h1 {
    font-size: 120px;
    font-weight: 700;
    color: var(--primary-600);
    line-height: 1;
    margin-bottom: var(--spacing-4);
}

.not-found-content p {
    font-size: var(--font-size-lg);
    color: var(--gray-500);
    margin-bottom: var(--spacing-8);
}

/* ==========================================
   Responsive
   ========================================== */
@media (max-width: 1024px) {
    .app-sidebar {
        transform: translateX(-100%);
    }
    
    .app-sidebar.open {
        transform: translateX(0);
    }
    
    .app-main {
        margin-left: 0;
    }
    
    .header-search {
        display: none;
    }
}

@media (max-width: 768px) {
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .page-actions {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}
/* ==========================================
   Page Header
   ========================================== */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.page-header-content {
    flex: 1;
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
    line-height: 1.2;
}

.page-subtitle {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin: 0.25rem 0 0 0;
}

.page-actions {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
}

/* ==========================================
   Filters Bar
   ========================================== */
.filters-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--gray-100);
    flex-wrap: wrap;
}

.filters-search {
    position: relative;
    flex: 1;
    min-width: 200px;
}

.filters-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--gray-400);
    pointer-events: none;
}

.filters-search .form-input {
    padding-left: 40px;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    white-space: nowrap;
}

/* ==========================================
   Table Actions
   ========================================== */
.table-actions {
    display: flex;
    gap: 0.25rem;
}

/* ==========================================
   Form Switch
   ========================================== */
.form-switch {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
}

.form-switch input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.switch-slider {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--gray-300);
    border-radius: 12px;
    transition: background 0.2s ease;
}

.switch-slider::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: transform 0.2s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.form-switch input:checked + .switch-slider {
    background: var(--primary-600);
}

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

/* ==========================================
   Form Error
   ========================================== */
.form-error {
    display: block;
    font-size: 0.75rem;
    color: var(--error-600);
    margin-top: 0.25rem;
}

/* ==========================================
   Status Dot
   ========================================== */
.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 6px;
}

.status-dot.published { background: var(--success-500); }
.status-dot.draft { background: var(--warning-500); }
.status-dot.archived { background: var(--gray-400); }

/* ==========================================
   Button Outline
   ========================================== */
.btn-outline {
    background: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover:not(:disabled) {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

/* ==========================================
   Button Active State for View Toggle
   ========================================== */
.btn-ghost.active {
    background: var(--gray-200);
    color: var(--gray-900);
}

/* ==========================================
   Additional Media Item Styles
   ========================================== */
.media-item.selected {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 2px var(--primary-100);
}

.media-item-check {
    position: absolute;
    top: 8px;
    left: 8px;
    z-index: 10;
}

.media-item-check input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* ==========================================
   Required Field Indicator
   ========================================== */
.form-label.required::after {
    content: '*';
    color: var(--error-500);
    margin-left: 4px;
}