body {
    background-color: #f4f7f6;
}
.body-login {
    background-color: #f4f7f6;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    overflow: hidden;
}
.login-header {
    background-color: #0056b3; /* Azul corporativo Aguas de Barrancabermeja */
    color: white;
    padding: 30px 20px;
    text-align: center;
}
.login-header img {
    max-width: 150px;
    margin-bottom: 15px;
}
.btn-custom {
    background-color: #0056b3;
    border-color: #0056b3;
    color: white;
}
.btn-custom:hover {
    background-color: #004494;
    color: white;
}