body {
  margin: 0;
    font-family: 'Roboto', sans-serif;
    background-color: #dbeeff; /* azul claro */
    display: flex;
    justify-content: center;
    align-items: center;
   /* height: 20vh;*/
   
}

main {
   
}

h1 {
    font-size: 3em;
    margin-bottom: 20px;
    color: #0a3d62;
    text-align:center;
}

nav {
    background-color: #74b9ff; /* azul um pouco mais escuro */
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.15); /* sombra discreta */
}

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

li {
    margin: 8px 0;
    
}

a {
    text-decoration: none;
    color: #0a3d62;
    font-weight: 500;
    transition: 0.3s;
    font-size: 1.7em;
}

a:hover {
    color: white;
}