* {
            font-family: 'Poppins', sans-serif;
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        :root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --primary-light: #3b82f6;
            --secondary: #64748b;
            --success: #10b981;
            --danger: #ef4444;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --bg-light: #f8fafc;
        }
        
        html, body {
            height: 100%;
            overflow-x: hidden;
        }
        
        body {
            background: #f1f5f9;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 2rem 1rem;
            position: relative;
        }
        
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23cbd5e1' fill-opacity='0.4'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            z-index: 0;
        }
        
        .login-wrapper {
            position: relative;
            z-index: 1;
            width: 100%;
            max-width: 1000px;
        }
        
        .login-card {
            background: white;
            border-radius: 24px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.1);
            overflow: hidden;
            animation: fadeInUp 0.6s ease;
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .login-left {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 3rem 2.5rem;
            color: white;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            position: relative;
            overflow: hidden;
            min-height: 600px;
        }
        
        .login-left::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: rotate 30s linear infinite;
        }
        
        @keyframes rotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }
        
        .login-left-content {
            position: relative;
            z-index: 1;
            width: 100%;
        }
        
        .brand-logo-container {
            margin-bottom: 2.5rem;
        }
        
        .brand-logo {
            width: 120px;
            height: 120px;
            background: white;
            border-radius: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 20px 40px rgba(0,0,0,0.2);
            margin-bottom: 1.5rem;
        }
        
        .brand-logo img {
            width: 80px;
            height: 80px;
            object-fit: contain;
        }
        
        .brand-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: -0.5px;
        }
        
        .brand-subtitle {
            font-size: 1rem;
            opacity: 0.95;
            line-height: 1.7;
            max-width: 400px;
            margin: 0 auto;
        }
        
        .feature-list {
            margin-top: 2rem;
            text-align: left;
            display: inline-block;
        }
        
        .feature-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1rem;
            font-size: 0.95rem;
        }
        
        .feature-item i {
            width: 36px;
            height: 36px;
            background: rgba(255,255,255,0.2);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
        }
        
        .login-right {
            padding: 3rem 3rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        
        .login-title {
            font-size: 1.875rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            letter-spacing: -0.5px;
        }
        
        .login-subtitle {
            color: var(--text-muted);
            margin-bottom: 2rem;
            font-size: 1rem;
        }
        
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .form-label {
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 0.5rem;
            font-size: 0.875rem;
            display: block;
        }
        
        .input-wrapper {
            position: relative;
        }
        
        .input-icon {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 1rem;
            z-index: 1;
        }
        
        .form-control {
            width: 100%;
            padding: 0.875rem 1rem 0.875rem 3rem;
            border-radius: 12px;
            border: 2px solid var(--border);
            transition: all 0.3s ease;
            font-size: 0.95rem;
            background: var(--bg-light);
        }
        
        .form-control:focus {
            border-color: var(--primary);
            background: white;
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
            outline: none;
        }
        
        .input-wrapper:focus-within .input-icon {
            color: var(--primary);
        }
        
        .password-toggle {
            position: absolute;
            right: 1rem;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            padding: 0.5rem;
            transition: color 0.3s ease;
            z-index: 2;
        }
        
        .password-toggle:hover {
            color: var(--primary);
        }
        
        .password-toggle i {
            font-size: 1rem;
        }
        
        .password-input {
            padding-right: 3rem;
        }
        
        .alert {
            border-radius: 12px;
            border: none;
            padding: 1rem;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            font-size: 0.9rem;
            animation: shake 0.5s ease;
        }
        
        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
            20%, 40%, 60%, 80% { transform: translateX(5px); }
        }
        
        .alert i {
            font-size: 1.1rem;
            flex-shrink: 0;
            margin-top: 0.1rem;
        }
        
        .alert-danger {
            background-color: #fee2e2;
            color: #991b1b;
        }
        
        .btn-login {
            width: 100%;
            padding: 1rem;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 12px;
            border: none;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: white;
            transition: all 0.3s ease;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }
        
        .btn-login:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
        }
        
        .btn-login:active {
            transform: translateY(0);
        }
        
        .btn-login i {
            font-size: 1rem;
        }
        
        .back-link {
            text-align: center;
            margin-top: 1.5rem;
        }
        
        .back-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            border-radius: 8px;
        }
        
        .back-link a:hover {
            background: rgba(37, 99, 235, 0.1);
            color: var(--primary-dark);
        }
        
        .back-link a i {
            font-size: 0.9rem;
            transition: transform 0.3s ease;
        }
        
        .back-link a:hover i {
            transform: translateX(-3px);
        }
        
        /* ============================================
           RESPONSIVE DESIGN - LOGIN
           ============================================ */

        /* Tablet Portrait (768px - 991px) */
        @media (max-width: 991px) {
            .login-left {
                min-height: 500px;
                padding: 2.5rem 2rem;
            }
            
            .brand-logo {
                width: 100px;
                height: 100px;
                border-radius: 20px;
            }
            
            .brand-logo img {
                width: 70px;
                height: 70px;
            }
            
            .brand-title {
                font-size: 1.75rem;
            }
            
            .brand-subtitle {
                font-size: 0.95rem;
            }
            
            .feature-list {
                margin-top: 1.5rem;
            }
            
            .feature-item {
                font-size: 0.9rem;
            }
            
            .login-right {
                padding: 2.5rem 2.5rem;
            }
            
            .login-title {
                font-size: 1.75rem;
            }
        }
        
        /* Mobile Landscape & Small Tablet (577px - 767px) */
        @media (max-width: 767px) {
            body {
                padding: 1.5rem 1rem;
            }
            
            .login-card {
                border-radius: 20px;
            }
            
            .login-left {
                min-height: 450px;
                padding: 2.25rem 1.75rem;
            }
            
            .brand-logo-container {
                margin-bottom: 2rem;
            }
            
            .brand-logo {
                width: 90px;
                height: 90px;
                border-radius: 18px;
                margin-bottom: 1.25rem;
            }
            
            .brand-logo img {
                width: 65px;
                height: 65px;
            }
            
            .brand-title {
                font-size: 1.625rem;
                margin-bottom: 0.875rem;
            }
            
            .brand-subtitle {
                font-size: 0.9rem;
                line-height: 1.6;
            }
            
            .feature-list {
                margin-top: 1.375rem;
            }
            
            .feature-item {
                font-size: 0.875rem;
                gap: 0.875rem;
                margin-bottom: 0.875rem;
            }
            
            .feature-item i {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
                border-radius: 9px;
            }
            
            .login-right {
                padding: 2.25rem 2rem;
            }
            
            .login-title {
                font-size: 1.625rem;
            }
            
            .login-subtitle {
                font-size: 0.95rem;
                margin-bottom: 1.75rem;
            }
            
            .form-group {
                margin-bottom: 1.375rem;
            }
            
            .form-label {
                font-size: 0.85rem;
                margin-bottom: 0.475rem;
            }
            
            .form-control {
                padding: 0.8rem 1rem 0.8rem 2.875rem;
                font-size: 0.925rem;
                border-radius: 11px;
            }
            
            .input-icon {
                font-size: 0.975rem;
            }
            
            .password-toggle i {
                font-size: 0.975rem;
            }
            
            .alert {
                padding: 0.95rem;
                font-size: 0.875rem;
                gap: 0.7rem;
                border-radius: 11px;
            }
            
            .alert i {
                font-size: 1.05rem;
            }
            
            .btn-login {
                padding: 0.95rem;
                font-size: 0.975rem;
                border-radius: 11px;
            }
            
            .btn-login i {
                font-size: 0.975rem;
            }
            
            .back-link {
                margin-top: 1.375rem;
            }
            
            .back-link a {
                font-size: 0.875rem;
                padding: 0.475rem 0.95rem;
            }
        }
        
        /* Mobile Portrait (481px - 576px) */
        @media (max-width: 576px) {
            body {
                padding: 1.25rem 0.875rem;
            }
            
            .login-card {
                border-radius: 18px;
            }
            
            .login-left {
                min-height: 400px;
                padding: 2rem 1.5rem;
            }
            
            .brand-logo-container {
                margin-bottom: 1.75rem;
            }
            
            .brand-logo {
                width: 80px;
                height: 80px;
                border-radius: 16px;
                margin-bottom: 1rem;
            }
            
            .brand-logo img {
                width: 58px;
                height: 58px;
            }
            
            .brand-title {
                font-size: 1.5rem;
                margin-bottom: 0.75rem;
            }
            
            .brand-subtitle {
                font-size: 0.875rem;
                line-height: 1.55;
            }
            
            .feature-list {
                margin-top: 1.25rem;
            }
            
            .feature-item {
                font-size: 0.85rem;
                gap: 0.8rem;
                margin-bottom: 0.8rem;
            }
            
            .feature-item i {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
                border-radius: 8px;
            }
            
            .login-right {
                padding: 2rem 1.75rem;
            }
            
            .login-title {
                font-size: 1.5rem;
            }
            
            .login-subtitle {
                font-size: 0.9rem;
                margin-bottom: 1.625rem;
            }
            
            .form-group {
                margin-bottom: 1.25rem;
            }
            
            .form-label {
                font-size: 0.825rem;
                margin-bottom: 0.45rem;
            }
            
            .form-control {
                padding: 0.75rem 1rem 0.75rem 2.75rem;
                font-size: 0.9rem;
                border-radius: 10px;
            }
            
            .input-icon {
                font-size: 0.95rem;
                left: 0.95rem;
            }
            
            .password-toggle {
                right: 0.95rem;
                padding: 0.45rem;
            }
            
            .password-toggle i {
                font-size: 0.95rem;
            }
            
            .alert {
                padding: 0.9rem;
                font-size: 0.85rem;
                gap: 0.675rem;
                border-radius: 10px;
                margin-bottom: 1.375rem;
            }
            
            .alert i {
                font-size: 1rem;
            }
            
            .btn-login {
                padding: 0.9rem;
                font-size: 0.95rem;
                border-radius: 10px;
            }
            
            .btn-login i {
                font-size: 0.95rem;
            }
            
            .back-link {
                margin-top: 1.25rem;
            }
            
            .back-link a {
                font-size: 0.85rem;
                padding: 0.45rem 0.9rem;
            }
            
            .back-link a i {
                font-size: 0.85rem;
            }
        }
        
        /* Small Mobile (426px - 480px) */
        @media (max-width: 480px) {
            body {
                padding: 1rem 0.75rem;
            }
            
            .login-card {
                border-radius: 16px;
            }
            
            .login-left {
                min-height: 350px;
                padding: 1.875rem 1.375rem;
            }
            
            .brand-logo-container {
                margin-bottom: 1.5rem;
            }
            
            .brand-logo {
                width: 75px;
                height: 75px;
                border-radius: 15px;
                margin-bottom: 0.95rem;
            }
            
            .brand-logo img {
                width: 54px;
                height: 54px;
            }
            
            .brand-title {
                font-size: 1.375rem;
                margin-bottom: 0.7rem;
            }
            
            .brand-subtitle {
                font-size: 0.85rem;
                line-height: 1.5;
            }
            
            .feature-list {
                margin-top: 1.125rem;
            }
            
            .feature-item {
                font-size: 0.825rem;
                gap: 0.75rem;
                margin-bottom: 0.75rem;
            }
            
            .feature-item i {
                width: 30px;
                height: 30px;
                font-size: 0.875rem;
            }
            
            .login-right {
                padding: 1.875rem 1.5rem;
            }
            
            .login-title {
                font-size: 1.375rem;
            }
            
            .login-subtitle {
                font-size: 0.875rem;
                margin-bottom: 1.5rem;
            }
            
            .form-group {
                margin-bottom: 1.125rem;
            }
            
            .form-label {
                font-size: 0.8rem;
                margin-bottom: 0.425rem;
            }
            
            .form-control {
                padding: 0.7rem 0.95rem 0.7rem 2.625rem;
                font-size: 0.875rem;
                border-radius: 9px;
            }
            
            .input-icon {
                font-size: 0.925rem;
                left: 0.9rem;
            }
            
            .password-toggle {
                right: 0.9rem;
                padding: 0.4rem;
            }
            
            .password-toggle i {
                font-size: 0.925rem;
            }
            
            .alert {
                padding: 0.875rem;
                font-size: 0.825rem;
                gap: 0.65rem;
                border-radius: 9px;
            }
            
            .alert i {
                font-size: 0.975rem;
            }
            
            .btn-login {
                padding: 0.875rem;
                font-size: 0.925rem;
                border-radius: 9px;
            }
            
            .btn-login i {
                font-size: 0.925rem;
            }
            
            .back-link {
                margin-top: 1.125rem;
            }
            
            .back-link a {
                font-size: 0.825rem;
                padding: 0.425rem 0.875rem;
            }
        }
        
        /* Extra Small Mobile (376px - 425px) */
        @media (max-width: 425px) {
            body {
                padding: 0.875rem 0.625rem;
            }
            
            .login-card {
                border-radius: 14px;
            }
            
            .login-left {
                min-height: 320px;
                padding: 1.75rem 1.25rem;
            }
            
            .brand-logo-container {
                margin-bottom: 1.375rem;
            }
            
            .brand-logo {
                width: 70px;
                height: 70px;
                border-radius: 14px;
                margin-bottom: 0.875rem;
            }
            
            .brand-logo img {
                width: 50px;
                height: 50px;
            }
            
            .brand-title {
                font-size: 1.25rem;
                margin-bottom: 0.65rem;
            }
            
            .brand-subtitle {
                font-size: 0.825rem;
                line-height: 1.48;
            }
            
            .feature-list {
                display: none;
            }
            
            .login-right {
                padding: 1.75rem 1.375rem;
            }
            
            .login-title {
                font-size: 1.25rem;
            }
            
            .login-subtitle {
                font-size: 0.85rem;
                margin-bottom: 1.375rem;
            }
            
            .form-group {
                margin-bottom: 1rem;
            }
            
            .form-label {
                font-size: 0.775rem;
                margin-bottom: 0.4rem;
            }
            
            .form-control {
                padding: 0.675rem 0.9rem 0.675rem 2.5rem;
                font-size: 0.85rem;
                border-radius: 8px;
                border-width: 1.5px;
            }
            
            .input-icon {
                font-size: 0.9rem;
                left: 0.875rem;
            }
            
            .password-toggle {
                right: 0.875rem;
                padding: 0.375rem;
            }
            
            .password-toggle i {
                font-size: 0.9rem;
            }
            
            .alert {
                padding: 0.85rem;
                font-size: 0.8rem;
                gap: 0.625rem;
                border-radius: 8px;
                margin-bottom: 1.25rem;
            }
            
            .alert i {
                font-size: 0.95rem;
            }
            
            .btn-login {
                padding: 0.85rem;
                font-size: 0.9rem;
                border-radius: 8px;
            }
            
            .btn-login i {
                font-size: 0.9rem;
            }
            
            .back-link {
                margin-top: 1rem;
            }
            
            .back-link a {
                font-size: 0.8rem;
                padding: 0.4rem 0.85rem;
            }
            
            .back-link a i {
                font-size: 0.8rem;
            }
        }
        
        /* Tiny Mobile (321px - 375px) */
        @media (max-width: 375px) {
            body {
                padding: 0.75rem 0.5rem;
            }
            
            .login-card {
                border-radius: 12px;
            }
            
            .login-left {
                min-height: 300px;
                padding: 1.625rem 1.125rem;
            }
            
            .brand-logo-container {
                margin-bottom: 1.25rem;
            }
            
            .brand-logo {
                width: 65px;
                height: 65px;
                border-radius: 13px;
                margin-bottom: 0.8rem;
            }
            
            .brand-logo img {
                width: 47px;
                height: 47px;
            }
            
            .brand-title {
                font-size: 1.175rem;
                margin-bottom: 0.6rem;
            }
            
            .brand-subtitle {
                font-size: 0.8rem;
                line-height: 1.45;
            }
            
            .login-right {
                padding: 1.625rem 1.25rem;
            }
            
            .login-title {
                font-size: 1.175rem;
            }
            
            .login-subtitle {
                font-size: 0.825rem;
                margin-bottom: 1.25rem;
            }
            
            .form-group {
                margin-bottom: 0.95rem;
            }
            
            .form-label {
                font-size: 0.75rem;
                margin-bottom: 0.375rem;
            }
            
            .form-control {
                padding: 0.65rem 0.875rem 0.65rem 2.4rem;
                font-size: 0.825rem;
                border-radius: 8px;
            }
            
            .input-icon {
                font-size: 0.875rem;
                left: 0.85rem;
            }
            
            .password-toggle {
                right: 0.85rem;
                padding: 0.35rem;
            }
            
            .password-toggle i {
                font-size: 0.875rem;
            }
            
            .alert {
                padding: 0.825rem;
                font-size: 0.775rem;
                gap: 0.6rem;
            }
            
            .alert i {
                font-size: 0.925rem;
            }
            
            .btn-login {
                padding: 0.825rem;
                font-size: 0.875rem;
            }
            
            .btn-login i {
                font-size: 0.875rem;
            }
            
            .back-link {
                margin-top: 0.95rem;
            }
            
            .back-link a {
                font-size: 0.775rem;
                padding: 0.375rem 0.825rem;
            }
        }
        
        /* Smallest Mobile (320px) */
        @media (max-width: 320px) {
            body {
                padding: 0.625rem 0.5rem;
            }
            
            .login-card {
                border-radius: 12px;
            }
            
            .login-left {
                min-height: 280px;
                padding: 1.5rem 1rem;
            }
            
            .brand-logo-container {
                margin-bottom: 1.125rem;
            }
            
            .brand-logo {
                width: 60px;
                height: 60px;
                border-radius: 12px;
                margin-bottom: 0.75rem;
            }
            
            .brand-logo img {
                width: 44px;
                height: 44px;
            }
            
            .brand-title {
                font-size: 1.1rem;
                margin-bottom: 0.55rem;
            }
            
            .brand-subtitle {
                font-size: 0.775rem;
                line-height: 1.42;
            }

            .login-right {
            padding: 1.5rem 1.125rem;
        }
        
        .login-title {
            font-size: 1.1rem;
        }
        
        .login-subtitle {
            font-size: 0.8rem;
            margin-bottom: 1.125rem;
        }
        
        .form-group {
            margin-bottom: 0.9rem;
        }
        
        .form-label {
            font-size: 0.725rem;
            margin-bottom: 0.35rem;
        }
        
        .form-control {
            padding: 0.625rem 0.85rem 0.625rem 2.3rem;
            font-size: 0.8rem;
            border-radius: 7px;
            border-width: 1.5px;
        }
        
        .input-icon {
            font-size: 0.85rem;
            left: 0.825rem;
        }
        
        .password-toggle {
            right: 0.825rem;
            padding: 0.325rem;
        }
        
        .password-toggle i {
            font-size: 0.85rem;
        }
        
        .alert {
            padding: 0.8rem;
            font-size: 0.75rem;
            gap: 0.575rem;
            border-radius: 7px;
            margin-bottom: 1.125rem;
        }
        
        .alert i {
            font-size: 0.9rem;
        }
        
        .btn-login {
            padding: 0.8rem;
            font-size: 0.85rem;
            border-radius: 7px;
        }
        
        .btn-login i {
            font-size: 0.85rem;
        }
        
        .back-link {
            margin-top: 0.9rem;
        }
        
        .back-link a {
            font-size: 0.75rem;
            padding: 0.35rem 0.8rem;
        }
        
        .back-link a i {
            font-size: 0.75rem;
        }
    }
    
    /* Landscape Mode Adjustments */
    @media (max-height: 600px) and (orientation: landscape) {
        body {
            padding: 1rem 1rem;
        }
        
        .login-left {
            min-height: 400px;
            padding: 2rem 1.5rem;
        }
        
        .brand-logo-container {
            margin-bottom: 1.25rem;
        }
        
        .brand-logo {
            width: 70px;
            height: 70px;
        }
        
        .brand-logo img {
            width: 52px;
            height: 52px;
        }
        
        .brand-title {
            font-size: 1.375rem;
        }
        
        .feature-list {
            display: none;
        }
        
        .login-right {
            padding: 2rem 2rem;
        }
    }