:root {
    --primary: #667eea;
    --primary-dark: #5a6fd6;
    --secondary: #764ba2;
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;
    --dark: #1e293b;
    --darker: #0f172a;
    --light: #f8fafc;
    --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;
    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
    --radius: 10px;
    --radius-lg: 16px;
    --transition: all 0.25s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, 'Noto Sans Arabic', Arial, sans-serif;
    background: var(--gray-100);
    color: var(--gray-800);
    direction: rtl;
    text-align: right;
    line-height: 1.6;
}

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

/* Sidebar */
.sidebar {
    width: 280px;
    background: linear-gradient(180deg, var(--darker) 0%, var(--dark) 100%);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: var(--transition);
    overflow-y: auto;
}

.sidebar.collapsed {
    width: 72px;
}

.sidebar.collapsed .logo h1,
.sidebar.collapsed .logo small,
.sidebar.collapsed .version,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .user-details {
    display: none;
}

.sidebar.collapsed .logo {
    justify-content: center;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

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

.logo i {
    font-size: 28px;
    color: var(--primary);
    flex-shrink: 0;
}

.logo h1 {
    font-size: 15px;
    font-weight: 700;
    line-height: 1.3;
}

.logo small {
    font-size: 11px;
    opacity: 0.7;
    display: block;
}

.version {
    font-size: 11px;
    color: var(--gray-400);
    margin-top: 8px;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 0;
}

.sidebar-nav ul {
    list-style: none;
}

.nav-item {
    padding: 11px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: var(--transition);
    border-right: 3px solid transparent;
    color: var(--gray-300);
    text-decoration: none;
    font-size: 14px;
}

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

.nav-item.active {
    background: rgba(102,126,234,0.18);
    border-right-color: var(--primary);
    color: white;
}

.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 16px;
    flex-shrink: 0;
}

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

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

.user-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    flex-shrink: 0;
}

.user-details {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.user-name {
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

/* Main Content */
.main-content {
    flex: 1;
    margin-right: 280px;
    transition: var(--transition);
}

.sidebar.collapsed ~ .main-content {
    margin-right: 72px;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px;
    background: white;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-500);
    font-size: 14px;
}

.top-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.current-date {
    font-size: 13px;
    color: var(--gray-500);
}

.btn-icon {
    width: 38px;
    height: 38px;
    border: none;
    background: var(--gray-100);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
}

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

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

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    display: none;
    z-index: 100;
    margin-top: 8px;
    border: 1px solid var(--border);
    overflow: hidden;
}

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

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--gray-700);
    text-decoration: none;
    font-size: 13px;
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background: var(--gray-50);
    color: var(--primary);
}

/* Page Content */
.page-content {
    padding: 24px;
}

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

.card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 16px;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-body {
    padding: 24px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 22px;
    display: flex;
    align-items: center;
    gap: 18px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: white;
    flex-shrink: 0;
}

.stat-info h3 {
    font-size: 26px;
    font-weight: 800;
    color: var(--dark);
    line-height: 1.2;
}

.stat-info p {
    color: var(--gray-500);
    font-size: 13px;
    margin-top: 2px;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

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

.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: right;
    border-bottom: 1px solid var(--gray-100);
    font-size: 14px;
}

.data-table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-700);
    white-space: nowrap;
}

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

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

/* Status Badges */
.badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
}

.badge-success { background: var(--success-light); color: #065f46; }
.badge-warning { background: var(--warning-light); color: #92400e; }
.badge-danger { background: var(--danger-light); color: #991b1b; }
.badge-info { background: var(--info-light); color: #1e40af; }

/* Buttons */
.btn {
    padding: 10px 18px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

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

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102,126,234,0.35);
}

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

.btn-warning { background: var(--warning); color: white; }
.btn-warning:hover { background: #d97706; }

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

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

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(102,126,234,0.05);
}

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

.btn-lg {
    padding: 12px 24px;
    font-size: 15px;
}

/* Forms */
.form-group {
    margin-bottom: 18px;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    transition: var(--transition);
    background: white;
    direction: rtl;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102,126,234,0.12);
}

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

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

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

.modal {
    background: white;
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 650px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.modal-lg {
    max-width: 850px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-size: 17px;
    color: var(--dark);
}

.modal-close {
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--gray-400);
    padding: 4px;
    transition: var(--transition);
}

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

.modal-body {
    padding: 24px;
}

/* Toast */
.toast-container {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 2000;
}

.toast {
    background: white;
    border-radius: 10px;
    padding: 14px 18px;
    margin-bottom: 10px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    animation: slideIn 0.3s ease;
    border-right: 4px solid;
}

.toast-success { border-color: var(--success); }
.toast-error { border-color: var(--danger); }
.toast-warning { border-color: var(--warning); }

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.page-header h2 {
    font-size: 22px;
    color: var(--dark);
}

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

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

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

.search-box i {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
}

.search-box input {
    width: 100%;
    padding: 10px 40px 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
}

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

/* Activity List */
.activity-list {
    list-style: none;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}

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

.activity-item .icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 12px;
    flex-shrink: 0;
}

.activity-item p {
    font-size: 13px;
    margin-bottom: 2px;
}

.activity-item span {
    font-size: 11px;
    color: var(--gray-400);
}

/* Reports Grid */
.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.report-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 28px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

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

.report-card i {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: 14px;
}

.report-card h3 {
    margin-bottom: 6px;
    color: var(--dark);
    font-size: 15px;
}

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

/* Utilities Grid */
.utilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.utility-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 28px;
    text-align: center;
    box-shadow: var(--shadow);
}

.utility-card i {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 16px;
}

.utility-card h3 {
    margin-bottom: 8px;
    color: var(--dark);
}

.utility-card p {
    color: var(--gray-500);
    font-size: 13px;
    margin-bottom: 18px;
}

/* Payslip Print */
.payslip {
    background: white;
    padding: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.payslip-header {
    text-align: center;
    border-bottom: 2px solid var(--dark);
    padding-bottom: 20px;
    margin-bottom: 20px;
}

.payslip-header h2 {
    font-size: 20px;
    margin-bottom: 5px;
}

.payslip-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.payslip-table th,
.payslip-table td {
    border: 1px solid var(--gray-300);
    padding: 10px 14px;
    text-align: right;
}

.payslip-table th {
    background: var(--gray-100);
    font-weight: 600;
}

.payslip-total {
    background: var(--gray-100);
    font-weight: 700;
}

/* Responsive */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(100%);
    }
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    .main-content {
        margin-right: 0 !important;
    }
    .page-content {
        padding: 16px;
    }
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

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

/* Print Styles */
@media print {
    .sidebar, .top-bar, .btn, .filters-bar, .no-print {
        display: none !important;
    }
    .main-content {
        margin: 0 !important;
    }
    .page-content {
        padding: 0 !important;
    }
}

/* Dark Mode */
body.dark-mode {
    --bg-color: #0f172a;
    --light: #1e293b;
    --gray-50: #1e293b;
    --gray-100: #334155;
    --gray-200: #475569;
    --gray-300: #64748b;
    --gray-400: #94a3b8;
    --gray-500: #cbd5e1;
    --gray-600: #e2e8f0;
    --gray-700: #f1f5f9;
    --gray-800: #f8fafc;
    --border: #334155;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.3);
    background-color: var(--bg-color);
    color: #e2e8f0;
}

body.dark-mode .main-content {
    background: var(--bg-color);
}

body.dark-mode .top-bar {
    background: #1e293b;
    border-bottom-color: #334155;
}

body.dark-mode .card, 
body.dark-mode .stat-card, 
body.dark-mode .report-card, 
body.dark-mode .utility-card,
body.dark-mode .modal,
body.dark-mode .login-box {
    background: #1e293b;
    color: #e2e8f0;
}

body.dark-mode .card-header,
body.dark-mode .modal-header {
    border-bottom-color: #334155;
}

body.dark-mode .data-table th {
    background: #0f172a;
    color: #cbd5e1;
    border-bottom-color: #334155;
}

body.dark-mode .data-table td {
    border-bottom-color: #334155;
}

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

body.dark-mode .form-group input,
body.dark-mode .form-group select,
body.dark-mode .form-group textarea {
    background: #0f172a;
    border-color: #334155;
    color: #e2e8f0;
}

body.dark-mode .form-group label {
    color: #cbd5e1;
}

body.dark-mode .btn-icon {
    background: #334155;
    color: #e2e8f0;
}

body.dark-mode .btn-outline {
    border-color: #475569;
    color: #e2e8f0;
}

body.dark-mode .dropdown-menu {
    background: #1e293b;
    border-color: #334155;
}

body.dark-mode .dropdown-menu a {
    color: #e2e8f0;
}

body.dark-mode .dropdown-menu a:hover {
    background: #334155;
}

body.dark-mode .toast {
    background: #1e293b;
    color: #e2e8f0;
}

body.dark-mode .login-form .input-group input {
    background: #0f172a;
    border-color: #334155;
    color: #e2e8f0;
}

body.dark-mode .login-footer {
    color: #64748b;
}