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

:root {
    --main-cl:  #e0e0e0;
    --secondary-cl: rgba(0, 0, 0, 0.712);
    --size: 600px;
}

html {
    scroll-behavior: smooth;
}

html, body {
    height: 100%;
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
    font-family: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
    overflow-wrap: break-word;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
}

body {
    font-family: 'Roboto', sans-serif;
    font-size: 1.5rem;
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
    background-color: var(--main-cl);
    color: var(--secondary-cl);
    min-height: 100%;  
    display: grid;
    place-items: center;
}

.clock { 
    width: var(--size);
    height: var(--size);
    border-radius: 50%;
    background: #e0e0e0;
    box-shadow:  10px 10px 20px #bebebe,
                -10px -10px 20px #ffffff,
                inset 10px 10px 20px #bebebe,
                inset -10px -10px 20px #ffffff;
    position: relative;
}

.clock > div {
    position: absolute;
    inset: 15px;
    text-align: center;
    transform: rotate(calc(var(--i) * (360deg / 12)));
}

.clock > div > span {
    display: inline-block;
    font-weight: 600;  
    transform: rotate(calc(var(--i) * (-360deg / 12)));
}

.clock::before {
    content: '';
    position: absolute;
    width: 15px;
    height: 15px;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    background-color: black;
    border-radius: 50%;
    z-index: 1;
}

.hand {
    position: absolute;
    bottom: 50%;
    left: 50%;
    transform-origin: bottom;  
    width: 4px;
    background-color: black;
}

.seconds {
    width: 2px;
    height: 38%;
    background-color: red;
}

.minutes {
    height: 33%; 
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}

.hours {
    height: 22%;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}

@media (max-width: 800px) {
    :root {
        --size: 500px;
    }
}

@media (max-width: 600px) {
    :root {
        --size: 400px;
    }
}

@media (max-width: 500px) {
    :root {
        --size: 300px;
    }
}