body{
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    background-color: #f4f4f9;
    color: #333;
}
header{
    background-color: #007bff;
    color:black;
    padding: 20px;
    text-align: center;
}
header h1{
    margin-top: 0;
}
nav ul{
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    gap: 20px;
}
nav a{
    color: white;
    text-decoration: none;
    font-weight: bold;
    padding: 5px 10 px;
    transition: background-color 0.2s;
}
nav a:hover{
    background-color: blueviolet;
    border-radius: 5px;
}
/*estilo al main, section y aside*/

main{
    display: flex;
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 20px;
    gap: 30px;

}
section{
    flex: 3;
    background-color: papayawhip;
    padding: 20px;
    box-shadow: 0 0 10px rgb(0,0,0, 1);
    border-radius: 8px;
}
aside{
    flex: 1;
    background-color: papayawhip;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgb(0,0,0, 1);
}
form{
    width: 100%;
    max-width: 500px; 
    margin: 0 auto; 
    padding: 25px 35px;
    background-color: whitesmoke;
    border-radius: 15px;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
}

form label{
    font-weight: bold;
    display: block;
}
footer{
    background-color: black;
    color: white;
    padding: 20px;
    text-align: center;
}
.skills-sidebar {
  flex: 0 0 28%; /* ancho fijo aprox. 28% */
  align-self: flex-start;
  position: sticky; /* hace que siga visible al hacer scroll */
  top: 2rem;
}