:root {
            /* Educational theme with sophisticated palette */
            --primary: #1a4d7c;
            --primary-light: #2d6ba3;
            --primary-dark: #0f3a5f;
            --accent: #e74c3c;
            --accent-light: #ff6b59;
            --success: #27ae60;
            --warning: #f39c12;
            --info: #3498db;
            
            --bg-primary: #f8f9fa;
            --bg-secondary: #ffffff;
            --bg-tertiary: #e9ecef;
            
            --text-primary: #1a1a1a;
            --text-secondary: #6c757d;
            --text-light: #ffffff;
            
            --border: #dee2e6;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
            
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Outfit', sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        /* Animated Background */
        .bg-pattern {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                linear-gradient(135deg, rgba(26, 77, 124, 0.03) 0%, rgba(26, 77, 124, 0.01) 100%),
                repeating-linear-gradient(45deg, transparent, transparent 50px, rgba(26, 77, 124, 0.02) 50px, rgba(26, 77, 124, 0.02) 100px);
            pointer-events: none;
            z-index: 0;
        }
        
        /* Login Page Styles */
        .login-container {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            padding: 20px;
            position: relative;
            z-index: 1;
        }
        
        .login-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            max-width: 440px;
            overflow: hidden;
            animation: slideUp 0.6s ease-out;
        }
        
        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .login-header {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 40px 30px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .login-header::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            animation: pulse 4s ease-in-out infinite;
        }
        
        @keyframes pulse {
            0%, 100% { transform: scale(1); opacity: 0.5; }
            50% { transform: scale(1.1); opacity: 0.8; }
        }
        
        .school-logo {
            width: 100px;
            height: 100px;
            background: url("iist.png") center/100% no-repeat;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px;
            font-size: 36px;
            font-weight: 900;
            color: var(--text-light);
            position: relative;
        }
        
        .login-header h1 {
            color: var(--text-light);
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 5px;
            position: relative;
        }
        
        .login-header p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            font-weight: 300;
            position: relative;
        }
        
        .login-body {
            padding: 35px 30px;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
            font-size: 14px;
        }
        
        .form-control {
            width: 100%;
            padding: 14px 16px;
            border: 2px solid var(--border);
            border-radius: var(--radius-sm);
            font-family: 'Outfit', sans-serif;
            font-size: 15px;
            transition: all 0.3s ease;
            background: var(--bg-primary);
        }
        
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background: var(--bg-secondary);
            box-shadow: 0 0 0 4px rgba(26, 77, 124, 0.1);
        }
        
        .btn {
            padding: 14px 24px;
            border: none;
            border-radius: var(--radius-sm);
            font-family: 'Outfit', sans-serif;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: var(--text-light);
            width: 100%;
            margin-top: 10px;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        
        .btn-primary:active {
            transform: translateY(0);
        }
        
        .alert {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            margin-bottom: 20px;
            font-size: 14px;
            animation: shake 0.5s ease;
        }
        
        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            25% { transform: translateX(-10px); }
            75% { transform: translateX(10px); }
        }
        
        .alert-error {
            background: rgba(231, 76, 60, 0.1);
            color: var(--accent);
            border: 1px solid rgba(231, 76, 60, 0.3);
        }
        
        .alert-success {
            background: rgba(39, 174, 96, 0.1);
            color: var(--success);
            border: 1px solid rgba(39, 174, 96, 0.3);
        }
        
        .login-footer {
            text-align: center;
            padding: 0 30px 30px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        
        /* Dashboard Layout */
        .dashboard {
            display: none;
            min-height: 100vh;
            position: relative;
            z-index: 1;
        }
        
        .dashboard.active {
            display: block;
        }
        
        /* Navbar */
        .navbar {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            color: var(--text-light);
            padding: 0;
            box-shadow: var(--shadow-md);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .navbar-content {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 24px;
        }
        
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 20px;
            font-weight: 700;
        }
        
        .brand-icon {
            width: 40px;
            height: 40px;
            background: url("iist.png") center/100% no-repeat;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }
        
        .navbar-user {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        
        .user-info {
            text-align: right;
        }
        
        .user-name {
            font-weight: 600;
            font-size: 14px;
        }
        
        .user-role {
            font-size: 12px;
            opacity: 0.8;
        }
        
        .btn-logout {
            background: rgba(255, 255, 255, 0.15);
            color: var(--text-light);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 8px 16px;
            font-size: 14px;
        }
        
        .btn-logout:hover {
            background: rgba(255, 255, 255, 0.25);
            transform: none;
        }
        
        /* Main Content */
        .main-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 32px 24px;
        }
        
        .page-header {
            margin-bottom: 32px;
        }
        
        .page-header h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        
        .page-header p {
            color: var(--text-secondary);
            font-size: 16px;
        }
        
        /* Stats Cards */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            margin-bottom: 32px;
        }
        
        .stat-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--primary);
            transition: all 0.3s ease;
            animation: fadeInUp 0.5s ease-out;
            animation-fill-mode: both;
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .stat-card:nth-child(1) { animation-delay: 0.1s; }
        .stat-card:nth-child(2) { animation-delay: 0.2s; }
        .stat-card:nth-child(3) { animation-delay: 0.3s; }
        .stat-card:nth-child(4) { animation-delay: 0.4s; }
        
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        
        .stat-card.accent { border-left-color: var(--accent); }
        .stat-card.warning { border-left-color: var(--warning); }
        .stat-card.success { border-left-color: var(--success); }
        
        .stat-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
        }
        
        .stat-title {
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: var(--text-secondary);
        }
        
        .stat-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            background: var(--bg-primary);
        }
        
        .stat-value {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-primary);
        }
        
        /* Card */
        .card {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
            overflow: hidden;
        }
        
        .card-header {
            padding: 20px 24px;
            border-bottom: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
        }
        
        .card-body {
            padding: 24px;
        }
        
        /* Table */
        .table-container {
            overflow-x: auto;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
        }
        
        th {
            background: var(--bg-primary);
            padding: 14px 16px;
            text-align: left;
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: var(--text-secondary);
            border-bottom: 2px solid var(--border);
        }
        
        td {
            padding: 16px;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
        }
        
        tr:hover {
            background: var(--bg-primary);
        }
        
        /* Badge */
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .badge-minor {
            background: rgba(243, 156, 18, 0.15);
            color: var(--warning);
        }
        
        .badge-major {
            background: rgba(231, 76, 60, 0.15);
            color: var(--accent);
        }
        
        .badge-pending {
            background: rgba(52, 152, 219, 0.15);
            color: var(--info);
        }
        
        .badge-approved {
            background: rgba(39, 174, 96, 0.15);
            color: var(--success);
        }
        
        .badge-denied {
            background: rgba(231, 76, 60, 0.15);
            color: var(--accent);
        }
        
        .badge-active {
            background: rgba(231, 76, 60, 0.15);
            color: var(--accent);
        }
        
        .badge-resolved {
            background: rgba(39, 174, 96, 0.15);
            color: var(--success);
        }
        
        /* Notification Panel */
        .notification-panel {
            background: linear-gradient(135deg, rgba(231, 76, 60, 0.05) 0%, rgba(255, 107, 89, 0.05) 100%);
            border: 2px solid rgba(231, 76, 60, 0.2);
            border-radius: var(--radius-md);
            padding: 20px;
            margin-bottom: 24px;
        }
        
        .notification-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        
        .notification-icon {
            width: 40px;
            height: 40px;
            background: var(--accent);
            color: var(--text-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }
        
        .notification-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--accent);
        }
        
        .notification-item {
            background: var(--bg-secondary);
            border-radius: var(--radius-sm);
            padding: 14px;
            margin-bottom: 10px;
            border-left: 3px solid var(--accent);
        }
        
        .notification-item:last-child {
            margin-bottom: 0;
        }
        
        .notification-date {
            font-size: 12px;
            color: var(--text-secondary);
            margin-bottom: 4px;
        }
        
        .notification-message {
            font-size: 14px;
            color: var(--text-primary);
        }
        
        /* Grid Layout */
        .grid {
            display: grid;
            gap: 24px;
        }
        
        .grid-2 {
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        }
        
        /* Forms in Cards */
        .form-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin-bottom: 16px;
        }
        
        .btn-success {
            background: var(--success);
            color: var(--text-light);
        }
        
        .btn-success:hover {
            background: #229954;
        }
        
        .btn-danger {
            background: var(--accent);
            color: var(--text-light);
        }
        
        .btn-danger:hover {
            background: #c0392b;
        }
        
        .btn-warning {
            background: var(--warning);
            color: var(--text-light);
        }
        
        .btn-secondary {
            background: var(--bg-tertiary);
            color: var(--text-primary);
            border: 1px solid var(--border);
        }
        
        .btn-secondary:hover {
            background: var(--border);
        }
        
        .btn-sm {
            padding: 6px 12px;
            font-size: 13px;
        }
        
        /* Modal */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1000;
            align-items: center;
            justify-content: center;
            padding: 20px;
            backdrop-filter: blur(4px);
        }
        
        .modal.active {
            display: flex;
            animation: fadeIn 0.3s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        .modal-content {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            max-width: 600px;
            width: 100%;
            max-height: 90vh;
            overflow-y: auto;
            box-shadow: var(--shadow-lg);
            animation: slideDown 0.3s ease;
        }
        
        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .modal-header {
            padding: 24px;
            border-bottom: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .modal-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
        }
        
        .modal-close {
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-secondary);
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: all 0.2s ease;
        }
        
        .modal-close:hover {
            background: var(--bg-tertiary);
            color: var(--text-primary);
        }
        
        .modal-body {
            padding: 24px;
        }
        
        .modal-footer {
            padding: 20px 24px;
            border-top: 1px solid var(--border);
            display: flex;
            gap: 12px;
            justify-content: flex-end;
        }
        
        /* Search and Filter Bar */
        .filter-bar {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            padding: 20px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }
        
        .filter-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
        }
        
        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236c757d' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 36px;
        }
        
        textarea.form-control {
            min-height: 100px;
            resize: vertical;
        }
        
        /* Empty State */
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-secondary);
        }
        
        .empty-state-icon {
            font-size: 64px;
            margin-bottom: 16px;
            opacity: 0.3;
        }
        
        .empty-state-text {
            font-size: 16px;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .navbar-content {
                flex-direction: column;
                gap: 16px;
                text-align: center;
            }
            
            .navbar-user {
                flex-direction: column;
            }
            
            .user-info {
                text-align: center;
            }
            
            .stats-grid {
                grid-template-columns: 1fr;
            }
            
            .filter-grid {
                grid-template-columns: 1fr;
            }
            
            .form-row {
                grid-template-columns: 1fr;
            }
            
            .modal-footer {
                flex-direction: column;
            }
            
            .btn {
                width: 100%;
            }
            
            table {
                font-size: 13px;
            }
            
            th, td {
                padding: 10px 8px;
            }
        }
        
        /* Utilities */
        .hidden {
            display: none !important;
        }
        
        .text-center {
            text-align: center;
        }
        
        .mt-2 {
            margin-top: 16px;
        }
        
        .mb-2 {
            margin-bottom: 16px;
        }
        
        .flex {
            display: flex;
        }
        
        .items-center {
            align-items: center;
        }
        
        .justify-between {
            justify-content: space-between;
        }
        
        .gap-2 {
            gap: 16px;
        }