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

body{
    font-family: roboto, sans-serif;
    font-size: 4vmin;
    height: 100vh;
    display: grid;
    overflow: hidden;
    place-items: center;
    background: linear-gradient(45deg, #667eea , #764ba2);
}

.hr, 
.min, 
.sec{
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-gap: 4vmin;
    grid-row: 1/2;
    align-items: start;
}

.number{
    user-select: none;
    width: 8vmin;
    height: 8vmin;
    display: grid;
    place-items: center;
    color: #e2e8f0;
    transition: all 500ms 100ms ease;
    border-radius: 50%;
}

.number.pop{
    color: #10b981;
    font-weight: bold;
    transform: scale(1.3);
    background-color: #1e293b;
   box-shadow: -1vmin -1vmin 2vmin -0.5vmin #9333ea, 1vmin 1vmin 2vmin #0f172a;
}

.strip{
    transition: trasform 500ms ease-in-out;
    border-radius: 1.333333333333vmin;
    background-color: #334155;
   box-shadow: -1vmin -1vmin 2vmin -0.5vmin #8b5cf6, 1vmin 1vmin 2vmin #1e293b;
}

.clock{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 8vmin;
    height: 4vmin;
    position: relative;
    padding: 0 4vmin;
    
}