:root {
            --primary-color: #2563eb;
            --primary-hover: #1d4ed8;
            --secondary-color: #475569;
            --dark-color: #0f172a;
            --light-color: #f1f5f9;
            --border-color: #cbd5e1;
            --success-color: #10b981;
            --danger-color: #ef4444;
            --warning-color: #f59e0b;
            --box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            --transition: all 0.3s ease;
        }
        
        body {
            font-family: 'Inter', sans-serif;
            background-color: var(--light-color);
            min-height: 100vh;
            margin: 0;
            overflow-x: hidden;
        }
        
        .auth-container {
            display: flex;
            height: 100vh;
        }
        
        .brand-side {
            position: relative;
            flex: 1.8;
            background: linear-gradient(150deg, #0f172a 0%, #1e40af 100%);
            color: white;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 2rem;
        }
        
        .background-pattern {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M0 0h80v80H0V0zm20 20v40h40V20H20zm20 35a15 15 0 1 1 0-30 15 15 0 0 1 0 30z'/%3E%3C/g%3E%3C/svg%3E");
        }
        
        .brand-content {
            position: relative;
            z-index: 1;
            max-width: 600px;
            text-align: center;
        }
        
        .brand-logo {
            max-width: 200px;
            margin-bottom: 2rem;
        }
        
        .brand-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        
        .brand-subtitle {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: rgba(255, 255, 255, 0.9);
        }
        
        .brand-text {
            font-size: 1rem;
            opacity: 0.8;
            margin-bottom: 2.5rem;
            line-height: 1.6;
        }
        
        .admin-features {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
            margin-top: 2rem;
        }
        
        .admin-feature {
            display: flex;
            align-items: center;
            background-color: rgba(255, 255, 255, 0.08);
            padding: 0.75rem 1rem;
            border-radius: 6px;
            backdrop-filter: blur(5px);
            width: calc(50% - 0.5rem);
            transition: var(--transition);
        }
        
        .admin-feature:hover {
            background-color: rgba(255, 255, 255, 0.12);
            transform: translateY(-2px);
        }
        
        .feature-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 6px;
            margin-right: 0.75rem;
            background-color: rgba(255, 255, 255, 0.15);
            font-size: 1rem;
        }
        
        .login-side {
            flex: 1.2;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 2rem;
            background-color: #fff;
        }
        
        .login-card {
            width: 100%;
            max-width: 420px;
            padding: 2.5rem;
            border-radius: 12px;
            background-color: white;
            box-shadow: var(--box-shadow);
            border: 1px solid var(--border-color);
        }
        
        .card-logo {
            display: block;
            margin: 0 auto 1.5rem;
            max-width: 140px;
        }
        
        .card-logo svg {
            fill: var(--primary-color);
        }
        
        .admin-badge {
            display: inline-flex;
            align-items: center;
            background-color: rgba(37, 99, 235, 0.1);
            color: var(--primary-color);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.75rem;
            border-radius: 1rem;
            margin-bottom: 1rem;
        }
        
        .admin-badge i {
            font-size: 0.875rem;
            margin-right: 0.25rem;
        }
        
        .form-heading {
            margin-bottom: 1.5rem;
        }
        
        .form-heading h4 {
            color: var(--dark-color);
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        
        .form-heading p {
            color: var(--secondary-color);
            margin: 0;
            font-size: 0.95rem;
        }
        
        .form-label {
            font-weight: 500;
            color: var(--dark-color);
            margin-bottom: 0.5rem;
            font-size: 0.95rem;
        }
        
        .input-group {
            position: relative;
            margin-bottom: 1.5rem;
        }
        
        .form-control {
            height: 50px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 0.75rem 1rem;
            font-size: 0.95rem;
            transition: var(--transition);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
        }
        
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
        }
        
        .auth-pass-inputgroup .btn {
            height: 50px;
            border-top-right-radius: 8px !important;
            border-bottom-right-radius: 8px !important;
            border-color: var(--border-color);
            background-color: #f8fafc;
        }
        
        .login-btn {
            height: 50px;
            background-color: var(--primary-color);
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
        }
        
        .login-btn:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        }
        
        .forgotten-password {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            font-size: 0.875rem;
        }
        
        .forgotten-password:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }
        
        .text-danger {
            font-size: 0.85rem;
            margin-top: 0.25rem;
            display: block;
            color: var(--danger-color) !important;
        }
        
        .security-notice {
            margin-top: 2rem;
            padding: 0.75rem 1rem;
            background-color: rgba(241, 245, 249, 0.7);
            border-radius: 8px;
            border-left: 3px solid var(--warning-color);
            font-size: 0.85rem;
            color: var(--secondary-color);
        }
        
        .security-notice i {
            color: var(--warning-color);
            margin-right: 0.5rem;
        }
        
        .copyright {
            margin-top: 2rem;
            text-align: center;
            color: var(--secondary-color);
            font-size: 0.85rem;
        }
        
        .heart-icon {
            color: var(--danger-color);
            margin: 0 0.25rem;
        }
        
        /* Responsive */
        @media (max-width: 1200px) {
            .brand-side {
                flex: 1.5;
            }
            
            .login-side {
                flex: 1;
            }
            
            .admin-feature {
                width: 100%;
            }
        }
        
        @media (max-width: 992px) {
            .brand-side {
                display: none;
            }
            
            .login-side {
                flex: 1;
                background-color: var(--light-color);
            }
            
            .login-card {
                max-width: 450px;
            }
        }
        
        @media (max-width: 576px) {
            .login-card {
                padding: 1.5rem;
                box-shadow: none;
                border: none;
                background-color: transparent;
            }
            
            .form-heading h4 {
                font-size: 1.5rem;
            }
            
            body {
                background-color: white;
            }
        }