:root { 
                --color-principal: #0033a1; 
            } /* Reset */ 
            body { 
                margin: 0; 
                font-family: 'Segoe UI', sans-serif; 
            } /* Contenedor principal */ 
            .login-wrapper { 
                display: flex; 
                min-height: 100vh; 
            } /* LADO IZQUIERDO */ 
            .login-left { 
                flex: 1; 
                background: 
                var(--color-principal); 
                color: white; 
                display: flex; 
                flex-direction: column; 
                justify-content: center; 
                align-items: center; 
                padding: 40px; 
            } 
                
                
            .login-left img { 
                max-width: 220px; 
                margin-bottom: 20px; 
            } 


            .login-left h1 { 
                margin: 0; 
                font-size: 28px; 
            } 

            .login-left p { 
                opacity: 0.8; 
            } 
            
            .login-right { 
                flex: 1; 
                display: flex; 
                justify-content: center; 
                align-items: center; 
            } 

            .login-box { 
                width: 100%; 
                max-width: 350px; 
            } 
            
            /* Inputs */ 
            .login-box h2 { 
                margin-bottom: 20px; color: #333; 
            
            } 
            
            .form-group { 
                margin-bottom: 15px; 
            } 
            .form-group input {
                width: 100%;
                padding: 12px 14px;
                border: 1px solid #ccc;
                border-radius: 6px;
                font-size: 14px;
                box-sizing: border-box;
            }
            .form-group input:focus { 
                border-color: var(--color-principal); 
                outline: none; 
            } 
            /* Botón */ 
            .btn-login { 
                width: 100%; 
                padding: 12px; 
                background: 
                var(--color-principal); 
                color: white; 
                border: none; 
                border-radius: 6px; 
                cursor: pointer; 
            
            } 
            
            .btn-login:hover { 
                background: #002080; 
            
            } 

            .error-msg {
                margin-top: 12px;
                padding: 10px;
                background: #ffe5e5;
                color: #b30000;
                border-radius: 6px;
                font-size: 14px;
                text-align: center;
            }
            
    /* Responsive */
@media (max-width: 900px) {

    .login-wrapper {
        flex-direction: column;
        background: linear-gradient(135deg, #0033a1, #0052cc);
        align-items: center;
        justify-content: center; /* CENTRA verticalmente */
        min-height: 100vh;
        padding: 20px;
    }

    .login-left {
        background: transparent;
        padding: 0;
        margin-bottom: 20px;
        text-align: center;
    }

    .login-left img {
        max-width: 140px;
        margin-bottom: 10px;
    }

    .login-left h1,
    .login-left p {
        display: none;
    }

    .login-right {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .login-box {
        background: white;
        padding: 35px 30px;
        border-radius: 16px;
        box-shadow: 0 15px 35px rgba(0,0,0,0.2);
        width: 90%;
        max-width: 300px;
    }

    .login-box h2 {
        text-align: center;
        margin-bottom: 20px;
    }
}