pong.css

@import url('https://fonts.googleapis.com/css?family=Poppins&display=swap');

:root {
    --color1: #f0931a;
    --color2: #e8d60e;
    --color3: #21242b;
    --color4: #fff;
    --color5: #fdfbfb;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    margin: 0px;
    padding: 0px;
    overflow: hidden;
}


#preload {
    position: fixed;
    top: 0;
    height: 100vh;
    width: 100%;
    background: var(--color4);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease;
}

.preload-finish {
    opacity: 0;
    pointer-events: none;
}

.sk-double-bounce {
    width: 40px;
    height: 40px;
    position: relative;
    margin: 40px auto;
}

.sk-double-bounce .sk-child {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--color1);
    opacity: 0.6;
    position: absolute;
    top: 0;
    left: 0;
    -webkit-animation: sk-doubleBounce 2s infinite ease-in-out;
    animation: sk-doubleBounce 2s infinite ease-in-out;
}

.sk-double-bounce .sk-double-bounce2 {
    -webkit-animation-delay: -1.0s;
    animation-delay: -1.0s;
}

@-webkit-keyframes sk-doubleBounce {

    0%,
    100% {
        -webkit-transform: scale(0);
        transform: scale(0);
    }

    50% {
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}

@keyframes sk-doubleBounce {

    0%,
    100% {
        -webkit-transform: scale(0);
        transform: scale(0);
    }

    50% {
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}

.loading-text {
    position: absolute;
    margin-top: 1.5em;
    font-size: 3em;
}

nav {
    position: fixed;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 1rem 2rem;
    z-index: 800;
}

button {
    outline: none;
    background: var(--color1);
    border: none;
    border-radius: 0.75rem;
    font-size: 2rem;
    height: 4rem;
    width: 4rem;
    color: white;
    cursor: pointer;
}

#player-1 {
    position: absolute;
    top: 1rem;
    left: 25%;
    transform: translateX(-50%);
    font-size: 5rem;
    color: #fff;
    line-height: 4rem;
}

#player-2 {
    position: absolute;
    top: 1rem;
    left: 75%;
    transform: translateX(-50%);
    font-size: 5rem;
    color: #fff;
    line-height: 4rem;
}

#myCanvas {
    background: var(--color3);
    width: 100%;
    height: 100vh;
}

#webcam-video-wrapper {
    display: none;
}

#tracking-canvas-video-wrapper {
    position: absolute;
    top: 1rem;
    left: 50%;
    transform: translateX(-15%);
    z-index: 10;
}

canvas#tracking-canvas {
    border-radius: 3px;
    width: 30%;
    height: 30%;
    border-radius: 0.75rem;
    border-bottom: 0.25rem solid var(--color1);
    box-shadow: 0 2px 3px 0 rgba(0, 0, 0, 0.2), 0 4px 10px 0 #00000030;
}

#dividing-line {
    width: 0.75rem;
    height: 100vh;
    background: #fff;
    position: absolute;
    top: 0%;
    left: 50%;
    transform: translateX(-50%);
}

/* pause */

#pause-overlay {
    height: 100vh;
    width: 100vw;
    display: grid;
    text-align: center;
    align-content: center;
    font-size: 3rem;
    position: fixed;
    z-index: 4;
    background: #ffffffb0;
    transition: 0.25s;
    opacity: 0;
}

/* modal */

#modal-overlay {
    height: 100vh;
    width: 100vw;
    display: grid;
    justify-content: center;
    align-content: center;
    position: fixed;
    z-index: 10;
    transition: 0.5s;
    opacity: 0;
}

#modal {
    background: #ffffffec;
    border-radius: 1rem;
    text-align: center;
    width: 50%;
    transform: translate(50%, -150%);
}

#modal-close {
    position: absolute;
    top: 0%;
    right: 0%;
    padding: 0.4rem 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 100;
    color: #fff;
}

#modal-title {
    width: 100%;
    height: 100%;
    background: var(--color1);
    border-radius: 1rem 1rem 0 0;
    padding: 0.5rem 1rem;
    color: #fff;
    font-size: 1.5rem;
}

#modal-text {
    padding: 0.5rem 1rem;
    font-size: 1rem;
}

/* options */
#options-overlay {
    height: 100vh;
    width: 100vw;
    display: grid;
    text-align: center;
    align-content: center;
    font-size: 3rem;
    position: fixed;
    z-index: 500;
    background: #ffffffb0;
    transition: 0.25s;
    opacity: 0;
    pointer-events: none;
}

#options-wrapper {
    background: var(--color1);
    width: 50%;
    transform: translateX(50%);
    border-radius: 1rem;
}

#options-close {
    position: absolute;
    top: 0%;
    right: 0%;
    padding: 0.5rem 1.5rem;
    font-size: 2rem;
    cursor: pointer;
    z-index: 100;
    color: var(--color3);
}

#options-title {
    font-size: 2rem;
    background: #fff;
    border-radius: 1rem 1rem 0 0;
    padding: 0.5rem 1rem;
}

#option-container {
    color: #fff;
}

.option-title {
    font-size: 1.5rem;
    text-align: left;
    padding: 0.25rem 1rem;
}

.option {
    background: #fff;
    width: 100%;
    color: var(--color3);
}

.slider {
    -webkit-appearance: none;
    width: 100%;
    height: 1.25rem;
    background: var(--color3);
    outline: none;
    opacity: 0.7;
    -webkit-transition: .2s;
    transition: opacity .2s;
}

.slider:hover {
    opacity: 1;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 25px;
    height: 25px;
    border-radius: 0.5rem;
    background: var(--color1);
    cursor: pointer;
}

.slider::-moz-range-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 25px;
    height: 25px;
    border-radius: 0.5rem;
    background: var(--color1);
    cursor: pointer;
}

.option-current {
    font-size: 1.25rem;
    padding: 0 0 0.5rem 0;
}

.option:last-child {
    padding-bottom: 1rem;
    border-radius: 0 0 1rem 1rem;
}

.player-select {
    display: grid;
    grid-template-columns: 30% 30%;
    grid-column-gap: 20%;
    justify-content: center;
    padding: 1rem 0;
}

.option button {
    font-size: 1.25rem;
    height: auto;
    width: auto;
    margin: 0 0.5rem;
    padding: 0.5rem 0;
    background: transparent;
    color: var(--color1);
    border: 2px solid var(--color1);
}

button.is-selected {
    color: var(--color4);
    background: var(--color1);
}

.option-current {
    background: #fff;
    color: var(--color3);
}

#winner-overlay {
    height: 100vh;
    width: 100vw;
    display: grid;
    text-align: center;
    align-content: center;
    position: fixed;
    z-index: 999;
    background: var(--color3);
    transition: 0.25s;
    color: #fff;
    opacity: 0;
    pointer-events: none;
}

#winner-overlay h2 {
    font-size: 2.5rem;
    letter-spacing: 2px;
}

#reset-button {
    display: inline-block;
    font-size: 2rem;
    background: var(--color1);
    margin: 1rem auto;
    padding: 1rem;
    border-radius: 1rem;
    cursor: pointer;
}

#reset-button i {
    margin-right: 1rem;
}