:root {
    --cor0: #4cae4f;
    --cor0h: #6ebf70;
}

body {
    display: flex;
    flex-direction: column;
    height: 100dvh;
    margin: 0;
    background-color: black;
}

header {
    background-color: var(--cor0);
    color: white;
    box-shadow: 0px 0px 30px 5px rgba(0, 0, 0, 0.10);
    padding: 15px;
    display: flex;
    justify-content: center;
    font-weight: 500;
    letter-spacing: 1px;
    text-shadow: 0px 2px 1px rgba(0, 0, 0, 0.5);
}

header a {
    margin: 0 10px;
    transition: 0.1s ease;
}

header a:hover {
    transform: scale(1.3);
}

main {
    flex: 1;
    margin: 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.sistemas {
    display: flex;
    flex-direction: row;
}

h1 {
    color: white;
    margin-bottom: 20px;
    font-size: 2.5em;
    text-align: center;
}

h2 {
    color: white;
    margin: 40px 0 20px;
    font-size: 2em;
    text-align: center;
}

p {
    color: white;
}

main a {
    background-color: var(--cor0);
    color: white;
    margin: 10px;
    padding: 10px;
    border-radius: 10px;
    font-size: 1.5em;
    transition: 0.2s ease;
}

main a:hover {
    background-color: var(--cor0h);
    transform: scale(1.2);
}

footer {
    background-color: var(--cor0);
    font-weight: 400;
    letter-spacing: 2px;
    color: white;
    padding: 15px;
    margin-top: auto;
    text-align: center;
    font-weight: 400;
    text-shadow: 0px 2px 1px rgba(0, 0, 0, 0.5);
}


@media screen and (max-width: 460px) {
    .sistemas {
        display: flex;
        flex-direction: column;
        flex: 1;
    }
}