index.css

*{
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}

body{
    font-family: 'Roboto', sans-serif;
    margin: 0;
}

h1{ font-size: 3.5em;}
h2{ font-size: 2.7em;}
h3{ font-size: 2em;}
p{ font-size: 1.25em;}
ul{ list-style: none;}
li{ font-size: 1.25em;}
.color-acento{ color:orangered; }

button{
    font-size: 1.25em;
    font-weight: bold;
    padding: 10px 30px;
    border-radius: 5px;
    border: 2px solid rgba(0,0,0,0.3);
    box-shadow: 2px 2px 10px rgba(0,0,0,0.5);
    color: white;
    background-color: orangered;
    text-align: center;
}
Button:hover{
    background-color: rgb(255, 51, 0);
}
.container{
    max-width: 1400px;
    margin: auto;
}

header{
    background-color: rgb(245,245,245);
    
    

}
header .logo{
    margin: 0;
    padding: 25px 30px;
    font-weight: bold;
    color: orangered;
    font-size: 1.6em;
}
header .container{
    display: flex;
    flex-direction: column;
    align-items: center;
}
header nav{
    display: flex;
    flex-direction: column;
    text-align: center;
    padding-bottom: 25px;
    margin: auto;
}
header a{
    padding: 5px 12px;
    text-decoration: none;
    font-weight: bold;
    color: black;
    
}
header a:hover{
    color: orangered;
}
#somos-programando{
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    flex-direction: column;
    
    background-image: linear-gradient(
        0deg,
        rgba(0.5,0.5,0.5,0.5),
        rgba(0.5,0.5,0.5,0.5)
    )
    ,url("media/hero.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
}
#somos-programando h2{
    color: white;
    margin: auto;
    
}
#somos-programando p{
    
    color: white;
}

#nuestros-programas{
    background-color: rgb(30, 30, 30);
    color:  orange;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    flex-direction: column;
    flex-wrap: wrap;
    margin: auto;
}

#nuestros-programas p{
    color: whitesmoke;
}

#nuestros-programas .container{
    padding: 150px 12px;
    text-align: center;
}

#nuestros-programas h2{
    
    color: white;
}
#nuestros-programas .carta{
    background-position: center center;
    background-size: cover;
    padding: 50px 0px;
    margin: 30px;
    border-radius: 15px;
    padding: 50px;
}


.carta:first-child{
    border-radius: 15px;
    background-color: rgb(245, 113, 65);
    margin: 30px;
    border-radius: 15px;
    padding: 50px;
    background-image: linear-gradient(
    0deg,
    rgba(0.5,0.5,0.5,0.5),
    rgba(0.5,0.5,0.5,0.5)
)
,url("media/front-end.jpg");
}

.carta:nth-child(2){
    border-radius: 15px;
    background-color: rgb(245, 113, 65);
    margin: 30px;
    border-radius: 15px;
    padding: 50px;
    background-image: linear-gradient(
    0deg,
    rgba(0.5,0.5,0.5,0.5),
    rgba(0.5,0.5,0.5,0.5)
)
,url("media/fullstack.jpg");
}

.carta:nth-child(3){
    border-radius: 15px;
    background-color: rgb(245, 113, 65);
    margin: 30px;
    border-radius: 15px;
    padding: 50px;
    background-image: linear-gradient(
    0deg,
    rgba(0.5,0.5,0.5,0.5),
    rgba(0.5,0.5,0.5,0.5)
)
,url("media/java.jpg");
}


#modalidades{
    background-color: orange;
    display: flex; 
    align-items: center;
    justify-content: center;
    text-align: center;
    flex-direction:column;
    flex-wrap: wrap;
    margin: auto;

}
#modalidades h2{
    color: whitesmoke;
}
#modalidades p{
    color: whitesmoke;
}
#modalidades h3{
    color: orangered;
}
#modalidades .hoja{
    float: left;
    background-color: rgb(30, 30, 30);
    width: 330px;
    height: 430px;  
    border-radius: 8px;
    box-shadow: 0 2px 2px rgba(0,0,0,0.3);
    margin: 20px;
    padding: 20px;
    text-align: center;
    transition: all 0.25s;
    

}

#modalidades .hoja:hover{
    transform: translateY(-15px);
    box-shadow: 0 12px orange;

}


#nuestros-estudiantes  {
    background-color: rgb(30, 30, 30);
    display: flex; 
    align-items: center;
    justify-content: center;
    text-align: center;
    flex-direction:column;
    flex-wrap: wrap;
    margin: auto;

}
#nuestros-estudiantes    h2{
    color: white;
    height: 2.5em;
    
}
#nuestros-estudiantes    p{
    
    color: whitesmoke;
    padding-top: auto;
}
#nuestros-estudiantes    h3{
    color: black;
}
#nuestros-estudiantes    .comentario{
    float: left;
    background-color: rgb(30, 30, 30);
    width: 330px;
    height: 430px;  
    border-radius: 8px;
    box-shadow: 0 2px 2px rgba(0,0,0,0.3);
    margin: 20px;
    padding: 20px;
    text-align: center;
    transition: all 0.25s;
    

}

.comentario:first-child{
    background-image: linear-gradient(
        0deg,
        rgba(0.5,0.5,0.5,0.5),
        rgba(0.5,0.5,0.5,0.5)
    )
    ,url("media/hernan.jpg");
    background-size: cover;
    background-position: center ;
}

.comentario:nth-child(2){
    background-image: linear-gradient(
    0deg,
    rgba(0.5,0.5,0.5,0.5),
    rgba(0.5,0.5,0.5,0.5)
)
,url("media/nadia2.jpg");
background-size: cover;
background-position: center ;
}

.comentario:nth-child(3){
    background-image: linear-gradient(
    0deg,
    rgba(0.5,0.5,0.5,0.5),
    rgba(0.5,0.5,0.5,0.5)
)
,url("media/leon3.jpg");
background-size: cover;
background-position: center ;
}



footer{
    background-color: rgb(245,245,245);
    text-decoration: none;
    text-align: center;
}

.redes-sociales{
    margin: 0px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    padding-left: 10px;
    text-decoration: none;
}

footer p{
    margin: 0px;
    padding: 20px;
}
footer h4{
    margin: 0px;
    padding: 20px;
}
.copy{
    margin: 0px;
    padding: 20px;
    display: flex;
    justify-content: center;
    padding-left: 0%;
}


@media (min-width: 720px){

    header{
        position: fixed;
        width: 100%;
    }

    header.container{
    flex-direction: row;
    }

    header nav{
        flex-direction: row;
        
    }

#somos-programando{
    height: 90vh;
}

}