*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #000000;
    color: #000000;
}
header{
    background-color: #3f61b1;
    color: rgb(30, 231, 221);
    padding: 20px;
    text-align: center;
}
nav{
    background-color: #3a8a5a;
    overflow: hidden;
}

nav ul{
    list-style-type: none;
    margin: 0;
    padding: 0;
}

nav ul li{
    float: left;
}

nav ul li a{
    font: bold 16px 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: block;
    color: rgb(255, 249, 163);
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}
main{
    padding: 20px;
}

section{
    margin-bottom: 20px;
}

.contacto{
    background-color: aliceblue;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.redes{
    background-color: aliceblue;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

footer{
    background-color: #3f61b1;
    color: rgb(30, 231, 221);
    text-align: center;
    padding: 10px;
    position: fixed;
    width: 100%;
    bottom: 0;
}