* {
    font-family: Arial, Helvetica, sans-serif;
    /* text-decoration: none; */
    color: black;
    margin: 0px;
}

a {
    text-decoration: none;
}

body {
    background-color: darkgrey;
}

header {
    background-image: linear-gradient(black 20%, gray);
    padding: 10px;
    min-width: 256px;
}

header span {
    color: white;
    font-size: 0.8em;
    /* font-size: large; */
}

h1 {
    color: white;
    width: fit-content;
    margin: auto;
    text-shadow: 2px 0px 6px violet;
    font-size: 2.2em;
}

menu {
    margin-top: 1.2em;
    padding: 0%;
}

menu p {
    color: white;
}

menu a {
    color: white;
    border-radius: 5px;
    transition: 0.2s;
}

menu a:hover {
    background-color: black;
    padding: 3px;
    text-decoration: underline;
    box-shadow:3px 4px 3px 0px white;
}

main {
    padding: 20px 0px;
    text-align: center;
}

main p {
    padding: 10px;
}

section {
    background-color: white;
    min-width: 256px;
    max-width: 800px;
    margin: auto;
    padding: 20px;
    border-radius: 15px 0px;
    box-shadow: 0px 0px 0px white;
}

#introducao {
    background-color: #7A7A7A;
    border: 7px groove rgb(251, 203, 251);
    border-radius: 10px 0px;
    transition: 0.2s;
}

#introducao:hover {
    box-shadow: 0px 0px 10px violet;
}

#numero-da-sequencia {
    border-color: violet;
}

#botao-adicionar {
    font-weight: bold;
    border-style: groove;
    border-radius: 15px 0px;
    background-color: darkgrey;
    transition: 0.2s;
}

#botao-adicionar:hover {
    color: white;
    box-shadow: 0px 0px 10px violet;
}

#botao-magico {
    font-size: xx-large;
    border-radius: 50%;
    background: darkgrey;
    border: 0;
    transition: 0.2s;
    padding: 8px;
}

#botao-magico:hover {
    box-shadow: 0px 0px 10px violet;
    border-width: 3px;
}

footer {
    /* background-color: black; */
    background-image: linear-gradient(#7A7A7A 5%, black);
    color: white;
    bottom: 0;
    position: fixed;
    width: 100%;
}

footer p {
    color: white;
    text-align: center;
    margin: auto;
    padding: 5px;
    box-shadow: 2px -1px 0px black;
    border-width: 0px 30px;
    border-style: solid;
    border-color: white;
}

footer a {
    color: white;
    transition: 0.2s;
}

footer a:hover {
    text-decoration: underline;
    text-shadow: 0px 0px 8px white;
}