body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #e8eef3;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
        }

        .login-container {
            display: flex;
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            overflow: hidden;
            max-width: 900px;
            width: 100%;
        }

        .login-banner {
            background: linear-gradient(135deg, #2c3e50, #34495e);
            color: white;
            padding: 50px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            width: 45%;
        }

        .logo-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #3498db, #2ecc71);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .logo-icon i {
            color: white;
            font-size: 28px;
        }

        .login-banner h1 {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .login-banner p {
            font-size: 14px;
            color: #bdc3c7;
        }

        .login-form-section {
            padding: 50px;
            width: 55%;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .login-form-section h2 {
            color: #2c3e50;
            font-weight: 700;
            font-size: 28px;
            margin-bottom: 10px;
        }

        .login-form-section .subtitle {
            color: #7f8c8d;
            font-size: 15px;
            margin-bottom: 30px;
        }

        .form-group {
            margin-bottom: 20px;
            position: relative;
        }

        .form-control {
            height: 50px;
            border: 1px solid #ddd;
            border-radius: 8px;
            padding-left: 45px;
            font-size: 15px;
        }

        .form-control:focus {
            border-color: #3498db;
            box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
        }

        .form-group i {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: #95a5a6;
        }

        .btn-login {
            background: linear-gradient(135deg, #3498db, #2980b9);
            border: none;
            color: white;
            padding: 12px;
            border-radius: 8px;
            font-weight: 600;
            width: 100%;
            cursor: pointer;
            transition: all 0.3s;
        }

        .btn-login:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
        }

        .form-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 15px;
            font-size: 13px;
        }

        .form-footer a {
            color: #3498db;
            text-decoration: none;
        }

        .alert {
            padding: 10px 15px;
            font-size: 14px;
        }

        @media (max-width: 768px) {
            .login-container {
                flex-direction: column;
            }
            .login-banner, .login-form-section {
                width: 100%;
            }
        }