:root {

    --blanco: #fff;
    --negro: #111111;
    --gris: #343a40;


    --fuentePrincipal: 'Raleway', sans-serif;

}

html {
    font-size: 62.5%;
    box-sizing: border-box;

}

*,
*:before,
*:after {
    box-sizing: inherit;
}

body {
    font-family: var(--fuentePrincipal);
    font-size: 1.6rem;
    line-height: 1.8;
}

h1,
h2,
h3 {
    font-weight: 900;
    margin: 1rem 0 4rem 0;
    line-height: 1.2;
}

h1 {
    font-size: 4.8rem;
}

h2 {
    font-size: 5.8rem;
}

h3 {
    font-size: 5rem;
}

a {
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

.contenedor {
    max-width: 120rem;
    width: 90%;
    margin: 0 auto;
}

.btn {
    color: var(--gris);
    background-color: var(--blanco);
    border: solid 1px var(--gris);
    padding: .5rem 2rem;
    transition: background-color .3s;
}

.btn:hover {
    background-color: var(--gris);
    color: var(--blanco);
}

/* Utilidades */
.text-center {
    text-align: center;
}

.mt-5 {
    margin-top: 5rem;
}

/* header */
.header {
    min-height: 60rem;
    background-image: url(../img/hero.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: bottom center;
    padding: 5rem 0;
}

.contenido-header {
    display: flex;
    flex-direction: column;
    height: calc(60rem - 4rem);
    justify-content: space-between;
    color: var(--blanco);
}

.nombre-sitio {
    font-weight: 300;
    text-align: center;
    font-size: 3rem;
}

@media (min-width: 768px) {
    .nombre-sitio {
        font-size: 4rem;
    }
}

.nombre-sitio span {
    font-weight: 900;
}

@media (min-width: 768px) {
    .barra {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

}


.contacto {
    display: flex;
    flex-direction: column;
    align-items: center;

}

@media (min-width: 768px) {
    .contacto {
        align-items: flex-end;
    }
}

.telefono {
    display: flex; 
}

.telefono::before {
    content: '';
    display: block;
    width: 4rem;
    height: 4rem;
    background-image: url(../img/telefono.png);
    background-repeat: no-repeat;
    background-position: center center;
    margin-right: 1rem;
}

.header a{
    color: var(--blanco);
    font-size: 2rem;
}

.navegacion {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    margin-top: 1rem;
}

@media (min-width: 768px) {
    .navegacion {
        flex-direction: row;
        margin-top: 0
    }

}

.navegacion a {
    padding: .5rem;
    transition: background-color 300ms;
    width: 100%;
    text-align: center;

}
@media (min-width: 768px) { 
        .navegacion a {
            padding: 1rem 1rem;
        }
 }

.navegacion a:hover {
    background-color: rgb(255 255 255 / .5);
    color: var(--negro);
    

}

.slogan{
    text-align: center;
}
@media (min-width: 768px) { 
    .slogan{
        text-align: right;
    }
 }
.slogan h1{
    font-size: 3rem;
    margin: 0;
}
@media (min-width: 768px) { 
    .slogan h1{
        font-size: 5rem;
       
    }
 }

.slogan p{
    margin: 0;
    line-height: 1;
}

.nosotros{
    display: grid;
    grid-template-rows: repeat(2, 1fr);
    background-image: url(../img/nosotros.jpg);
    background-repeat: no-repeat;
    background-position: bottom center;
}
@media (min-width: 992px) { 
        .nosotros{
            grid-template-columns: repeat(3, 1fr);
        }
 }

.contenido-nosotros{
    background-color: var(--blanco);
    padding: 5rem;
}

@media (min-width: 992px) { 
        .contenido-nosotros{
            grid-column: 2 / 4;
        }
 }
.contenido-nosotros h2, .contenido-nosotros p {
margin-bottom: 1rem;
}

/* Modelos */

.modelo{
    display: grid;
    grid-template-rows: repeat(2, 1fr);
    background-repeat: no-repeat;
    background-position: bottom center;
    margin-bottom: 5rem;
}
.modelo:last-of-type{
    margin-bottom: 0;
}
@media (min-width: 768px) { 
        .modelo{
            grid-template-columns: repeat(2 , 1fr);
        }
 }
.contenido-modelo{
    padding: 5rem;
    background-color: var(--blanco);
}
.basico{
    background-image: url(../img/modelo_basico.jpg);
}
@media (min-width: 768px) { 
    .basico{
        background-position: top right;
    }
        .basico .contenido-modelo{
            grid-row: 2 / 3;
            padding: 2rem 2rem 2rem 0;
        }

 }
.premier{
    background-image: url(../img/modelo_premier.jpg);
}
@media (min-width: 768px) { 
    .premier{
        background-position: top left;
    }
        .premier .contenido-modelo{
            grid-column: 2 / 3;
            padding: 2rem;
            
        }

 }
.elite{
    background-image: url(../img/modelo_elite.jpg);
    
}
@media (min-width: 768px) { 
    .elite{
        background-position: top right;
    }
        .elite .contenido-modelo{
            grid-column: 1/ 2;
            padding: 2rem 2rem 2rem 0;
            
        }
 }

 /* Galeria */

 .galeria{
     display: grid;
     grid-template-columns: repeat( 2, 1fr);
     gap: 2rem;
 }
 @media (min-width: 768px) { 
         .galeria{
             grid-template-columns: repeat(3 , 1fr);
         }
  }
 .galeria img{
     object-fit: cover;
     height: 100%;
 }

 .galeria .imagen:nth-child(2){
     grid-column: 2/3;
     grid-row: 1 / 3;
 }
 @media (min-width: 768px) { 
    .galeria .imagen:nth-child(2){
        grid-column: 1 / 2;
        grid-row: 2 / 4;
    }
  }
 .galeria .imagen:nth-child(3){
    grid-row: 3/5;
    grid-column: 2/ 3;
}
@media (min-width: 768px) { 
    .galeria .imagen:nth-child(3){
        grid-row: 1/2;
        grid-column: 2/ 3;
    }
 }
 .galeria .imagen:nth-child(6){
    grid-row: 2 / 4;
}
@media (min-width: 768px) { 
    .galeria .imagen:nth-child(6){
        grid-column: 3 / 4;
        grid-row: 1 / 3;
    }  
 }

 /* Footer */
 .footer{
     height: 50rem;
     background-image: url(../img/footer_bg.jpg);
     background-repeat: no-repeat;
     background-position: center center;
     background-size: cover;
     
     display: flex;
     flex-direction: column;
     justify-content: flex-end;
     color: var(--blanco);
 }

 .footer a{
    color: var(--blanco);
    font-size: 2rem;
}

.copyright{
    background-color: var(--negro);
    text-align: center;
    margin: 5rem 0 0 0;
    font-size: 2rem;
    padding: 1rem;
}