* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
	--dark: #292C35;
	--light: #F1F1F1;
	--label: #111;

    font-size: 62.5%;
    font-family: 'Poppins', sans-serif;
}

body {
    width: 100vw;
    height: 100vh;
    background: var(--light);

    display: flex;
    gap: 7.8rem;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;

    transition: 300ms;
    font-size: 1.6rem;
}

.dark {
    transition: 300ms;
    background: var(--dark);
}

.container-bar {
    width: 23.5rem;
    height: 10.2rem;
    position: relative;

    border-radius: 5.9rem;
    background: var(--label);
}

header h1 {
    text-align: center;
    line-height: 5.5rem;
    font-size: 4.5rem;
}

.text {
    color: black;
}

.img-moon img {
    position: absolute;
    top: 1.0rem;
    left: .8rem;
    width: 8.4rem;
    cursor: pointer;
}

.img-sun img {
    position: absolute;
    top: 1.0rem;
    right: .8rem;
    width: 8.4rem;
    cursor: pointer;
}

.ball {
    transition: transform 300ms;
    position: absolute;
    right: .6rem;

    top: .7rem;

    width: 8.6rem;
    height: 8.6rem;

    border-radius: 50%;
    background: var(--light);
    
    cursor: pointer;
    border: 1px solid transparent;
}

footer {
    font-size: 2.4rem;
}

footer p a {
    text-decoration: none;
    color: cornflowerblue;
}