/* =====================================================
   WatuHRM - Design System
   Mobile-first responsive CSS
   ===================================================== */

/* --- CSS Custom Properties --- */
:root {
    /* Brand Colors */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary: #059669;
    --secondary-dark: #047857;
    --secondary-light: #d1fae5;
    --accent: #f59e0b;
    --accent-dark: #d97706;

    /* 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;

    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --dark: #374151;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 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;

    /* Border */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadow */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);

    /* Layout */
    --sidebar-width: 260px;
    --header-height: 60px;
    --content-max-width: 1200px;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--gray-800);
    background-color: var(--gray-100);
    min-height: 100vh;
}

a {
    color: var(--primary);
    text-decoration: none;
}
a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

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

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

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

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

/* --- Sidebar --- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--gray-900);
    color: #fff;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1000;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--gray-700);
    min-height: var(--header-height);
}

.sidebar-brand img {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
}

.sidebar-brand span {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: #fff;
}

.sidebar-nav {
    padding: var(--space-sm) 0;
}

.nav-section {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-400);
    margin-top: var(--space-sm);
}

.nav-item {
    display: block;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    color: var(--gray-300);
    font-size: var(--font-size-sm);
    border-left: 3px solid transparent;
    transition: all 0.2s;
    text-decoration: none;
}

.nav-link:hover {
    background: var(--gray-800);
    color: #fff;
    text-decoration: none;
}

.nav-link.active {
    background: var(--gray-800);
    color: #fff;
    border-left-color: var(--primary);
}

.nav-link .nav-icon {
    width: 20px;
    text-align: center;
    font-size: var(--font-size-base);
}

.nav-link .nav-badge {
    margin-left: auto;
    background: var(--danger);
    color: #fff;
    font-size: var(--font-size-xs);
    padding: 2px 8px;
    border-radius: 10px;
}

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

/* --- Top Header Bar --- */
.top-header {
    background: #fff;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-lg);
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-600);
    cursor: pointer;
    padding: var(--space-xs);
}

.page-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-800);
}

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

.header-user {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    position: relative;
}

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

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

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

.user-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-800);
}

.user-role {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

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

.dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    z-index: 200;
    padding: var(--space-xs) 0;
}

.dropdown-menu.show {
    display: block;
}

.dropdown-item {
    display: block;
    padding: var(--space-sm) var(--space-md);
    color: var(--gray-700);
    font-size: var(--font-size-sm);
    text-decoration: none;
}

.dropdown-item:hover {
    background: var(--gray-100);
    color: var(--gray-900);
    text-decoration: none;
}

.dropdown-divider {
    border-top: 1px solid var(--gray-200);
    margin: var(--space-xs) 0;
}

/* --- Content Area --- */
.content-wrapper {
    padding: var(--space-lg);
    flex: 1;
    width: 100%;
}

/* --- Cards --- */
.card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    margin-bottom: var(--space-lg);
}

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

.card-header h3 {
    font-size: var(--font-size-lg);
    margin: 0;
}

.card-body {
    padding: var(--space-lg);
}

.card-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* --- Stat Cards (Dashboard) --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.stat-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

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

.stat-icon.blue { background: var(--primary-light); color: var(--primary); }
.stat-icon.green { background: var(--secondary-light); color: var(--secondary); }
.stat-icon.yellow { background: #fef3c7; color: var(--accent); }
.stat-icon.red { background: #fee2e2; color: var(--danger); }
.stat-icon.purple { background: #ede9fe; color: #7c3aed; }
.stat-icon.orange { background: #ffedd5; color: #ea580c; }

.stat-info h4 {
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.stat-info .stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.5rem 1rem;
    font-size: var(--font-size-sm);
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    white-space: nowrap;
    font-family: var(--font-family);
    min-height: 40px;
}

.btn:hover { text-decoration: none; }

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: #fff;
}

.btn-secondary {
    background: var(--gray-600);
    color: #fff;
    border-color: var(--gray-600);
}
.btn-secondary:hover {
    background: var(--gray-700);
    border-color: var(--gray-700);
    color: #fff;
}

.btn-success {
    background: var(--success);
    color: #fff;
    border-color: var(--success);
}
.btn-success:hover {
    background: #059669;
    border-color: #059669;
    color: #fff;
}

.btn-danger {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
}
.btn-danger:hover {
    background: #dc2626;
    border-color: #dc2626;
    color: #fff;
}

.btn-warning {
    background: var(--warning);
    color: #fff;
    border-color: var(--warning);
}

.btn-outline {
    background: transparent;
    color: var(--gray-700);
    border-color: var(--gray-300);
}
.btn-outline:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: var(--font-size-xs);
    min-height: 32px;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-lg);
    min-height: 48px;
}

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

.btn-group {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* --- Forms --- */
.form-group {
    margin-bottom: var(--space-md);
}

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

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

.form-control {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    line-height: 1.5;
    color: var(--gray-800);
    background: #fff;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: border-color 0.15s, box-shadow 0.15s;
    min-height: 42px;
}

.form-control:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-light);
}

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

.form-control.is-invalid {
    border-color: var(--danger);
}

.invalid-feedback {
    font-size: var(--font-size-xs);
    color: var(--danger);
    margin-top: var(--space-xs);
}

.form-text {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
    margin-top: var(--space-xs);
}

select.form-control {
    appearance: auto;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

/* --- Tables --- */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: var(--space-md);
}

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

.table th {
    background: var(--gray-50);
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    font-weight: 600;
    color: var(--gray-600);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

.table td {
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--gray-200);
    vertical-align: middle;
}

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

.table-actions {
    display: flex;
    gap: var(--space-xs);
    white-space: nowrap;
}

/* --- Badges --- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.6rem;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: 10px;
    white-space: nowrap;
}

.badge-success { background: var(--secondary-light); color: #065f46; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-info { background: var(--primary-light); color: #1e40af; }
.badge-secondary { background: var(--gray-200); color: var(--gray-700); }
.badge-dark { background: var(--gray-700); color: #fff; }

/* --- Alerts --- */
.alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    font-size: var(--font-size-sm);
    border: 1px solid transparent;
}

.alert-success {
    background: var(--secondary-light);
    color: #065f46;
    border-color: #a7f3d0;
}

.alert-danger {
    background: #fee2e2;
    color: #991b1b;
    border-color: #fecaca;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border-color: #fde68a;
}

.alert-info {
    background: var(--primary-light);
    color: #1e40af;
    border-color: #bfdbfe;
}

/* --- Pagination --- */
.pagination-wrapper {
    display: flex;
    justify-content: center;
    margin-top: var(--space-lg);
}

.pagination {
    display: flex;
    list-style: none;
    gap: var(--space-xs);
}

.pagination li a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    text-decoration: none;
    border: 1px solid var(--gray-300);
}

.pagination li a:hover {
    background: var(--gray-100);
}

.pagination li.active a {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* --- Toolbar --- */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.search-box {
    position: relative;
}

.search-box input {
    padding-left: 2.5rem;
    min-width: 250px;
}

.search-box .search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
}

/* --- Breadcrumb --- */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

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

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

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

.breadcrumb .current {
    color: var(--gray-800);
    font-weight: 500;
}

/* --- Tabs --- */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: var(--space-lg);
    overflow-x: auto;
}

.tab-link {
    padding: var(--space-sm) var(--space-md);
    color: var(--gray-500);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    white-space: nowrap;
}

.tab-link:hover {
    color: var(--gray-700);
    text-decoration: none;
}

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

/* --- Modal --- */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
}

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

.modal {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-header h3 {
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-400);
    cursor: pointer;
    line-height: 1;
}

.modal-body {
    padding: var(--space-lg);
}

.modal-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
}

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--gray-500);
}

.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    color: var(--gray-300);
}

.empty-state h3 {
    color: var(--gray-600);
    margin-bottom: var(--space-sm);
}

/* --- Steps / Wizard --- */
.steps {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-xl);
    overflow-x: auto;
    padding-bottom: var(--space-sm);
}

.step {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    background: var(--gray-200);
    color: var(--gray-600);
}

.step.active .step-number {
    background: var(--primary);
    color: #fff;
}

.step.completed .step-number {
    background: var(--success);
    color: #fff;
}

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

.step.active .step-label {
    color: var(--gray-800);
    font-weight: 500;
}

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

.step.completed + .step-connector {
    background: var(--success);
}

/* --- Error Pages --- */
.error-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--gray-100);
}

.error-container {
    text-align: center;
    padding: var(--space-2xl);
}

.error-container .error-icon {
    font-size: 5rem;
    font-weight: 800;
    color: var(--gray-300);
    margin-bottom: var(--space-md);
}

/* --- Login Page --- */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
    padding: var(--space-md);
}

.auth-card {
    background: #fff;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    padding: var(--space-2xl);
}

.auth-logo {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.auth-logo img {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-sm);
}

.auth-logo h1 {
    font-size: var(--font-size-2xl);
    color: var(--gray-900);
}

.auth-logo p {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
}

/* --- Utilities --- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-500); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }
.text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }

.fw-bold { font-weight: 700; }
.fw-medium { font-weight: 500; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--space-sm); }
.gap-2 { gap: var(--space-md); }

.w-100 { width: 100%; }
.hidden { display: none !important; }

/* --- Sidebar Overlay (mobile) --- */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
}

/* --- Responsive: Tablet --- */
@media (min-width: 768px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
    .form-row.cols-3 {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

/* --- Responsive: Mobile --- */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay.show {
        display: block;
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
    }

    .content-wrapper {
        padding: var(--space-md);
    }

    .top-header {
        padding: 0 var(--space-md);
    }

    .user-info {
        display: none;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .toolbar-left, .toolbar-right {
        flex-wrap: wrap;
    }

    .search-box input {
        min-width: auto;
        width: 100%;
    }

    .steps {
        gap: var(--space-xs);
    }

    .step-label {
        display: none;
    }

    .step-connector {
        width: 20px;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .table th, .table td {
        padding: var(--space-xs) var(--space-sm);
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        width: 100%;
    }
}

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

    .auth-card {
        padding: var(--space-lg);
    }
}

/* --- Charts --- */
.chart-container {
    position: relative;
    height: 260px;
}

.chart-container.chart-sm {
    height: 200px;
}

.chart-container.chart-lg {
    height: 320px;
}

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

.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

@media (max-width: 768px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
    .chart-container {
        height: 220px;
    }
}

/* --- Dark Mode --- */
[data-theme="dark"] {
    --gray-50: #1a1b2e;
    --gray-100: #1e1f33;
    --gray-200: #2a2b3f;
    --gray-300: #3a3b4f;
    --gray-400: #6b7280;
    --gray-500: #9ca3af;
    --gray-600: #d1d5db;
    --gray-700: #e5e7eb;
    --gray-800: #f3f4f6;
    --gray-900: #f9fafb;

    --primary-light: rgba(37, 99, 235, 0.2);
    --secondary-light: rgba(5, 150, 105, 0.2);

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.4);
}

[data-theme="dark"] body {
    color: #e2e8f0;
    background-color: #0f1021;
}

[data-theme="dark"] .sidebar {
    background: #12132a;
    border-right: 1px solid #2a2b3f;
}

[data-theme="dark"] .sidebar-brand {
    border-bottom-color: #2a2b3f;
}

[data-theme="dark"] .nav-link {
    color: #94a3b8;
}

[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
    color: #fff;
    background: rgba(37, 99, 235, 0.15);
}

[data-theme="dark"] .nav-section {
    color: #64748b;
}

[data-theme="dark"] .top-header {
    background: #161730;
    border-bottom-color: #2a2b3f;
}

[data-theme="dark"] .page-title {
    color: #f1f5f9;
}

[data-theme="dark"] .card {
    background: #161730;
    border: 1px solid #2a2b3f;
}

[data-theme="dark"] .card-header {
    border-bottom-color: #2a2b3f;
}

[data-theme="dark"] .card-header h3 {
    color: #e2e8f0;
}

[data-theme="dark"] .stat-card {
    background: #161730;
    border: 1px solid #2a2b3f;
}

[data-theme="dark"] .stat-info h4 {
    color: #94a3b8;
}

[data-theme="dark"] .stat-value {
    color: #f1f5f9;
}

[data-theme="dark"] h1, [data-theme="dark"] h2,
[data-theme="dark"] h3, [data-theme="dark"] h4 {
    color: #f1f5f9;
}

[data-theme="dark"] .table {
    color: #e2e8f0;
}

[data-theme="dark"] .table thead th {
    background: #1a1b35;
    color: #94a3b8;
    border-bottom-color: #2a2b3f;
}

[data-theme="dark"] .table td {
    border-bottom-color: #2a2b3f;
}

[data-theme="dark"] .table tbody tr:hover {
    background: rgba(37, 99, 235, 0.08);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background: #1a1b35;
    color: #e2e8f0;
    border-color: #2a2b3f;
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

[data-theme="dark"] .form-label {
    color: #94a3b8;
}

[data-theme="dark"] .btn-outline {
    color: #94a3b8;
    border-color: #3a3b4f;
}

[data-theme="dark"] .btn-outline:hover {
    background: #2a2b3f;
    color: #f1f5f9;
}

[data-theme="dark"] .dropdown-menu {
    background: #1a1b35;
    border-color: #2a2b3f;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
}

[data-theme="dark"] .dropdown-item {
    color: #e2e8f0;
}

[data-theme="dark"] .dropdown-item:hover {
    background: #2a2b3f;
}

[data-theme="dark"] .dropdown-divider {
    border-color: #2a2b3f;
}

[data-theme="dark"] .breadcrumb {
    color: #64748b;
}

[data-theme="dark"] .breadcrumb a {
    color: #94a3b8;
}

[data-theme="dark"] .alert-info {
    background: rgba(59, 130, 246, 0.15);
    color: #93c5fd;
    border-color: rgba(59, 130, 246, 0.3);
}

[data-theme="dark"] .alert-success {
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
    border-color: rgba(16, 185, 129, 0.3);
}

[data-theme="dark"] .alert-warning {
    background: rgba(245, 158, 11, 0.15);
    color: #fcd34d;
    border-color: rgba(245, 158, 11, 0.3);
}

[data-theme="dark"] .alert-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    border-color: rgba(239, 68, 68, 0.3);
}

[data-theme="dark"] .text-muted {
    color: #64748b !important;
}

[data-theme="dark"] .empty-state {
    color: #64748b;
}

[data-theme="dark"] .pagination a,
[data-theme="dark"] .pagination span {
    background: #1a1b35;
    color: #94a3b8;
    border-color: #2a2b3f;
}

[data-theme="dark"] .pagination .active {
    background: var(--primary);
    color: #fff;
}

[data-theme="dark"] .modal-content {
    background: #161730;
    border-color: #2a2b3f;
}

[data-theme="dark"] .modal-header {
    border-bottom-color: #2a2b3f;
}

[data-theme="dark"] footer {
    border-top-color: #2a2b3f !important;
    color: #64748b !important;
}

[data-theme="dark"] .auth-page {
    background: #0f1021;
}

[data-theme="dark"] .auth-card {
    background: #161730;
    border: 1px solid #2a2b3f;
}

/* Theme toggle button */
.theme-toggle, .lang-toggle {
    background: none;
    border: 1px solid var(--gray-300);
    color: var(--gray-600);
    border-radius: var(--radius-md);
    padding: 0.35rem 0.6rem;
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.theme-toggle:hover, .lang-toggle:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

[data-theme="dark"] .theme-toggle,
[data-theme="dark"] .lang-toggle {
    border-color: #3a3b4f;
    color: #94a3b8;
}

[data-theme="dark"] .theme-toggle:hover,
[data-theme="dark"] .lang-toggle:hover {
    background: #2a2b3f;
    color: #f1f5f9;
}

/* --- Print --- */
@media print {
    .sidebar, .top-header, .menu-toggle, .toolbar, .pagination-wrapper {
        display: none !important;
    }

    .main-content {
        margin-left: 0;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}