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

    --primario: #784D3C;
    --gris: #e1e1e1;
    --blamco: #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;
}

/**Globales**/
.contenedor {
    max-width: 120rem;
    width: 90%;
    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 {
    max-width: 100%;
}
p {
    font-family: var(--fuenteParrafos);
    font-size: 2rem;
}
/**Utilidades**/
.no-margin {
    margin: 0;
}
.no-padding {
    padding: 0;
}
.center-texto {
    text-align: center;
}
/**Header**/
.header {
    background-image: url(../img/banner.jpg);
    height: 60rem;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
}
.header__texto {
    text-align: center;
    color: var(--blamco);
    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-between;
        align-items: center;
    }
}
.logo {
    color: var(--blamco);
}
.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(--blamco);
}

@media (min-width: 768px){
    .contenido-principal {
        display: grid;
        grid-template-columns: 2fr 1fr;
        column-gap: 4rem;
    }
}

.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(--blamco);
    text-align: center;
    padding: 1rem 3rem;
    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;
}
/**Sobre Nosotros**/
@media (min-width: 768px){
    .sobre-nosotros {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        column-gap: 2rem;
    }
}
/**CURSO**/
.curso {
    padding: 3rem 0;
    border-bottom: 1px solid var(--gris);
}
@media (min-width: 768px){
    .curso {
        display: grid;
        grid-template-columns: 1fr 2fr;
        column-gap: 2rem;
    }
}
.curso:last-of-type {
    border: none;
}
.curso__label {
    font-family: var(--fuenteHeading);
    font-weight: bold;
}
.curso__info {
    font-weight: normal;
}
.curso__label,
.curso__info {
    font-size: 2rem;
}

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

.formulario {
    background-color: var(--blamco);
    margin: -5rem 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;
}

/**Ebook**/

body{
  font-family: var(--fuenteHeading);
  background:#faf7f3;
  margin:0;
  color: var(--negro);
}
.container{
  max-width:900px;
  margin:auto;
  padding:24px;
}
.hero{
  text-align:center;
  padding:32px 12px;
}
.hero h1{
  font-size:4.2rem;
  margin-bottom:10px;
  color: var(--blamco);
}
.hero p{
  font-size:1.5rem;
  line-height:1.6;
  color: var(--blamco);
}
.cta{
  display:inline-block;
  background:#8b5a2b;
  color:#fff;
  padding:14px 22px;
  margin-top:16px;
  text-decoration:none;
  border-radius:10px;
  font-weight:bold;
}
.section{
  margin-top:32px;
}
.section h2{
  font-size:1.6rem;
  margin-bottom:10px;
  color: var(--blamco);
}
.grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.card{
  background:#ffffff;
  padding:14px;
  border-radius:12px;
  box-shadow:0 4px 10px rgba(0,0,0,.06);
}
.preview{
  display:flex;
  gap:16px;
  margin-top:12px;
}
.preview img{
  width:48%;
  border-radius:10px;
}
.price-box{
  background:#fff;
  padding:18px;
  border-radius:14px;
  text-align:center;
  box-shadow:0 4px 12px rgba(0,0,0,.08);
}
.price-box p{
  margin:6px 0;
}
.footer{
  text-align:center;
  margin:40px 0 20px;
  opacity:.8;
  font-size:1.5rem;
  color: var(--blamco)
}
.footer a:not(:last-child)::after {
  content: " | ";
  margin: 0 5px;
}