:root {
    --colorfondo: #e6e6fe;
    --colorprincipal:#00008b;
    --colorsecundario:#3838b3;
    --colordondo2:#f7f7ff;
    --negro:black;
    --blanco:white;
}    
*{
    box-sizing: border-box;
}
body {
    background-color:var(--blanco);
    font-family: Arial, Helvetica, sans-serif;
    color: var(--colorprincipal);
    width: 80vw;
    margin: auto;
}
header {
    background-color: var(--colorprincipal);
    color: var(--blanco);
    height: 150px;
    display: grid;
    grid-template-columns: 6fr 4fr;
    align-items:center;
    justify-items: center;

}
header>div{
    display:none ;
}
header ul {
    list-style: none;
    margin: 0px;
    padding: 0px;
}
header ul li {
    display: inline-block;
}
header ul li a {
    text-decoration: none;
    display: block;
    margin: 15px;
    font-size: 1.3em;
    color: inherit;

}
header form {
   
  width: 100%;
}
header form input {
    margin-left: 600px;
    border-radius: 5px;

}
main {
    background-color: var(--blanco);
    display: grid;
    grid-template-columns: 10fr;
}
main section {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    margin: auto;
    gap: 20px;
    background-color: var(--colordondo2);
    
}
main section article{
   padding: 10px;
}
main section article div {
    display: grid;
    grid-template-columns: 10fr;
    justify-items: center;
    align-items: center;
}
main section article a {
    background-color: #00008b;
    color: var(--blanco);
    text-decoration: none;
    padding: 5px;
    border-radius: 5px;
    
}
main section article div p {
    font-size: 0.8em;
    text-align: justify;
}
footer {
    background-color: var(--negro);
    color: var(--blanco);
    padding: 40px;
}
footer nav ul li {
    display: inline-block;
    color: var(--blanco);
}
footer ul {
    text-align: center;
}
footer ul li{
    display: inline-block;
}
footer p {
    text-align: center;
}
footer ul li  {
    display: inline-block;
}
footer ul li a {
    color: inherit;
    display: block;
    font-size: 1.3em;
    text-decoration: none;
    margin: 15px;
}