body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: #f5f7fb;
}

.container .card-login {
    width: 100%;
    max-width: 420px;
}

.card-login h2 {
    font-size: 2.2rem;
}

a {
    color: #3a57e8;
}

.login .btn,
.form-registro .btn,
.form-recuperar .btn,
.form-restablecer .btn {
    background-color: #04087c;
    color: white;
    padding: 12px 30px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    transition: box-shadow 0.3s ease;
}

.container .card-login .imagen-tds {
    width: 220px;
    height: auto;
    margin: auto;
    margin-bottom: 1rem;
}

.login .btn:hover,
.form-registro .btn:hover,
.form-recuperar .btn:hover,
.form-restablecer .btn:hover {
    box-shadow: 0 4px 10px rgba(58, 87, 232, 0.3);
}

.form-recuperar .cancelar {
    background: #ccc;
    color: #373737;
}

.card-recuperar {
    width: 100%;
    max-width: 500px;
}

.login .btn:active,
.login .btn:focus,
.form-recuperar .btn:active,
.form-recuperar .btn:focus,
.form-registro .btn:active,
.form-registro .btn:focus {
    color: white; 
    background-color: #04087c; 
    border-color: #04087c; 
}

.form-recuperar .cancelar:active,
.form-recuperar .cancelar:focus {
    color: #373737;
    background: #ccc;
    border-color: #ccc; 
}