:root {
    --fuenteHeading: 'PT Sans', sans-serif;
    --fuenteParrafos: 'Open Sans', sans-serif;

    --primario: #5956e9;
    --gris: #e1e1e1;
    --blanco: #ffffff;
    --negro: #000000;
}

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

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

body {
    font-family: var(--fuenteParrafos);
    font-size: 1.6rem;
    line-height: 2;
}

.contenedor {
    width: min(90%, 120rem);
    margin: 0 auto;
}

a {
    text-decoration: none;
}

h1, h2, h3, h4 {
    font-family: var(--fuenteHeading);
    line-height: 1.2;
}

h1 {
    font-size: 4.8rem;
}

h2 {
    font-size: 4rem;
}

h3 {
    font-size: 3.2rem;
}

h4 {
    font-size: 2.8rem;
}

img {
    width: 100%;
}

.no-margin {
    margin: 0;
}

.no-padding {
    padding: 0;
}

.centrar-texto {
    text-align: center;
}

.header {
    background-image: url(../img/banner-blog.jpg);
    height: 55rem;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
}

.header__texto {
    text-align: center;
    color: var(--blanco);
    margin-top: 5rem;
}

@media(min-width: 768px) {
    .header__texto {
        margin-top: 15rem;
    }
}

.barra {
    padding-top: 4rem;
}

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

.logo {
    color: var(--blanco);
}

.logo__nombre {
    font-weight: 400;
}

.logo__bold {
    font-weight: 700;
}

@media (min-width: 768px) {
    .navegacion {
        display: flex;
        gap: 2rem;
    }
}

.navegacion__enlace {
    display: block;
    text-align: center;
    font-size: 1.8rem;
    color: var(--blanco);
}

@media (min-width: 768px) {
    .contenido-principal {
        display: grid;
        grid-template-columns: 2fr 1fr;
    }
}

.entrada {
    border-bottom: 1px solid var(--gris);
    margin-bottom: 2rem;
}

.entrada:last-of-type {
    border: none;
    margin-bottom: 0;
}

.boton {
    display: block;
    font-family: var(--fuenteHeading);
    color: var(--blanco);
    text-align: center;
    padding: 1rem 3rem;
    font-size: 1.8rem;
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 2rem;
    border: none;
}

@media (min-width: 768px) {
    .boton {
        display: inline-block;
    }
}

.boton:hover {
    cursor: pointer;
}

.boton--primario {
    background-color: var(--negro);
}

.boton--secundario {
    background-color: var(--primario);
}

.cursos {
    list-style: none;
}

.widget-curso {
    border-bottom:  1px solid var(--gris);
    margin-bottom: 2rem;
}

.widget-curso:last-of-type {
    border: none;
    margin-bottom: 0;
}

.widget-curso__label {
    font-family: var(--fuenteHeading);
    font-weight: bold;
}

.widget-curso__info {
    font-weight: normal;
}

.widget-curso__label,
.widget-curso__info {
    font-size: 2rem;
}

.footer {
    background-color: var(--negro);
    padding-bottom: 3rem;
    margin-top: 4rem;
}

@media (min-width: 768px) {
    .sobre-nosotros {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        column-gap: 2rem;
    }
}

.contacto-bg {
    background-image: url(../img/contacto.jpg);
    height: 40rem;
    background-size: cover;
    background-repeat: no-repeat;
}

.formulario {
    background-color: var(--blanco);
    margin: -6rem auto 0 auto;
    width: 95%;
    padding: 5rem;
}

.campo {
    display: flex;
    margin-bottom: 2rem;
}

.campo__label {
    flex: 0 0 9rem;
    text-align: right;
    padding-right: 2rem;
}

.campo__field {
    flex: 1;
    border: 1px solid var(--gris);
}

.campo__field--textarea {
    height: 20rem;
}