body {
    min-height: 100svh;

    background:
        linear-gradient(rgba(0,0,0,0.65), rgba(0,0,0,0.65)),
        url("../assets/imagenes/fondomapa.png");

    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;

    display: flex;
    justify-content: center;
    align-items: center;

    padding: 20px; 
    overflow-x: hidden;
}

/* CONTENEDOR */
.total-container{
    display: flex;
    flex-direction: column;
    gap: 0;

    width: 100%;
    max-width: 800px;

    border: 1.5px solid white;
    border-radius: 20px;
    overflow: hidden;
}



/* CONTENIDO */
.register-container{
    background: #F5F5F5;
    padding: 20px;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

/* SUBTÍTULO */
.section-subtitle  {
    display: flex;
    justify-content: center;
    color: #4A69BD; 
    font-size: 14px;
    margin-top: 0px;   
    margin-bottom: 10px;
}

.section-subtitle h2 {
    margin: 0; 
}

/* OPCIONES DESKTOP */
.opciones{
    display: flex;
    justify-content: center;
    gap: 30px; /* más separación */
}

/* TARJETAS */
.opciones a{
    border: 1.5px solid black;
    border-radius: 12px;
    text-decoration: none;
    color: #000;

    padding: 18px;

    width: 100%;
    max-width: 340px; /* tamaño */
    min-height: 150px;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* IMÁGENES */
.opciones img {
    width: 70px; /*  más balanceado */
    height: auto;
    margin-bottom: 10px;
}

/*  RESPONSIVE */
@media (max-width: 660px) {

    body {
        align-items: flex-start;
        padding: 20px 12PX; /*padding lateral visible */
    }

    .total-container {
        width: 100%;
        max-width: 100%;
        border-radius: 16px;
        min-height: 80svh; 
        display: flex;
        justify-content: center;
    }

    .register-container {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: center; /* centra el contenido verticalmente */
        padding: 20px 15px;
    }

    .opciones {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }

    /*TARJETAS*/
     .opciones a {
        width: 100%;
        max-width: 280px; 
        padding: 16px;
    }

    .opciones img {
        width: 65px;
    }
}