accounts-frontend/packages/app/pages/404/404.scss

@import '~app/components/ui/fonts.scss';

// Original: http://codepen.io/vanderlanth/pen/rxpNMY

.page {
    margin: 80px auto 0;

    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.loading {
    width: 200px;
    height: 100px;
    margin-bottom: 50px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    animation: loadStab 1s ease-out infinite;
}

.cube {
    width: 50px;
    height: 50px;
    background: white;
    animation: cubeRotateLTR 1s ease-out infinite;

    html[dir='rtl'] & {
        animation-name: cubeRotateRTL;
    }
}

.road {
    position: absolute;
    width: 100%;
    height: 1px;
    background: white;
    inset-inline-start: 0;
    bottom: 0;
    animation: roadStab 1s ease-out infinite;
}

@keyframes cubeRotateLTR {
    0% {
        transform: rotate(0deg) translate3D(0, 0, 0);
    }
    65% {
        transform: rotate(45deg) translate3D(0, -13px, 0);
    }
    90% {
        transform: rotate(70deg) translate3D(0, -8px, 0);
    }
    100% {
        transform: rotate(90deg) translate3D(0, 0, 0);
    }
}

@keyframes cubeRotateRTL {
    0% {
        transform: rotate(0deg) translate3D(0, 0, 0);
    }
    65% {
        transform: rotate(-45deg) translate3D(0, -13px, 0);
    }
    90% {
        transform: rotate(-70deg) translate3D(0, -8px, 0);
    }
    100% {
        transform: rotate(-90deg) translate3D(0, 0, 0);
    }
}

@keyframes roadStab {
    0% {
        transform: translate3D(0, 0, 0);
    }
    60% {
        transform: translate3D(0, 2px, 0);
    }
    90% {
        transform: translate3D(0, 4px, 0);
    }
    100% {
        transform: translate3D(0, 0, 0);
    }
}

@keyframes loadStab {
    0% {
        transform: translate3D(0, 0, 0);
    }
    60% {
        transform: translate3D(0, -2px, 0);
    }
    95% {
        transform: translate3D(0, -2px, 0);
    }
    100% {
        transform: translate3D(0, 0, 0);
    }
}

//------------------ MOUNTAINS ---------------------

.rocks {
    width: 100%;
    height: 100%;
    position: absolute;
    bottom: -50px;
    inset-inline-start: 0;
    overflow: hidden;
    animation: roadStab 1s ease-out infinite;
}

@mixin rock($rockName, $bottom, $delay) {
    .#{$rockName} {
        position: absolute;
        border-left: 2px solid transparent;
        border-right: 2px solid transparent;
        border-bottom: 4px solid white;
        bottom: $bottom;
        inset-inline-end: -2%;
        animation: rockTravelling 10s $delay ease-out infinite;
    }
}

@include rock('rockOne', 23px, 0s);
@include rock('rockTwo', 40px, 2s);
@include rock('rockThree', 30px, 6s);
@include rock('rockFour', 10px, 4s);
@include rock('rockFive', 18px, 8s);

@keyframes rockTravelling {
    0% {
        inset-inline-end: -2%;
    }
    10% {
        inset-inline-end: 8%;
    }
    20% {
        inset-inline-end: 18%;
    }
    30% {
        inset-inline-end: 29%;
    }
    40% {
        inset-inline-end: 40%;
    }
    50% {
        inset-inline-end: 51%;
    }
    60% {
        inset-inline-end: 62%;
    }
    70% {
        inset-inline-end: 72%;
    }
    80% {
        inset-inline-end: 82%;
    }
    90% {
        inset-inline-end: 92%;
    }
    100% {
        inset-inline-end: 102%;
    }
}

//------------------ CLOUDS ---------------------

.clouds {
    width: 200%;
    height: 200%;
    animation: roadStab 1s ease-out infinite, cloudStab 1s ease-out infinite;
    position: absolute;
    bottom: -50px;
    inset-inline-start: -50%;
    overflow: hidden;
}

.cloud {
    position: absolute;
    will-change: animation;

    background-image: url('./cloud.svg');
    background-size: cover;
}

.cloudOne {
    composes: cloud;

    top: 5px;
    width: 100px;
    height: 32px;
    animation: cloudTravelling 16s linear infinite;
}

.cloudTwo {
    composes: cloud;

    top: 65px;
    inset-inline-end: -30%;
    width: 50px;
    height: 16px;
    animation: cloudTravelling 21s 5s linear infinite;
}

.cloudThree {
    composes: cloud;

    top: 40px;
    inset-inline-end: -30%;
    width: 70px;
    height: 22px;
    animation: cloudTravelling 26s 11s linear infinite;
}

@keyframes cloudTravelling {
    0% {
        inset-inline-end: -30%;
    }
    100% {
        inset-inline-end: 110%;
    }
}

@keyframes cloudStab {
    0% {
        transform: translate3D(0, 0, 0);
    }
    60% {
        transform: translate3D(0, 2px, 0);
    }
    85% {
        transform: translate3D(0, 2px, 0);
    }
    100% {
        transform: translate3D(0, 0, 0);
    }
}

%text {
    font-family: $font-family-title;
    text-align: center;
    padding: 0 10px;
    line-height: 1.2;
}

.text {
    @extend %text;

    font-size: 24px;
    margin-top: 25px;
    color: #666;
}

.subText {
    @extend %text;

    font-size: 16px;
    margin-top: 5px;
    color: #9a9a9a;
}