@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400&display=swap');

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

html, body {
    height: 100%;
}

body{
    display: grid;
    place-items: center;
    background: #131419;
}

.clock {
    height: 120px;
    width: 500px;
    line-height: 120px;
    text-align: center;
    padding: 0 5px;
    box-shadow: -3px -3px 7px rgba(255,255,255,0.05),   
                3px 3px 5px rgba(0,0,0,0.5);
}

.clock .display {
    font-size: 60px;
    color:#00FF7F;
    letter-spacing: 5px;
    font-family: 'Orbitron', sans-serif;
}
 

/*MODO CLARO*/
button {
    height: 20px;
    width: 20px;
    border-radius: 50%;
    outline: none;
    outline-color: white;
    background-color: #00FF7F;
    position: absolute;
    top: 10px;
    right: 10px;
}

.light {
    background-color: white;
    color: black;
}

footer {
    color: #00FF7F;
    font-family: 'Orbitron', sans-serif;
    text-align: center;
}