body {
    height: 100vh;
    background: #375ffa;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    font-family: Open Sans;
}

body.wrong {
    -webkit-animation: bg-red 1s ease-in;
    animation: bg-red 1s ease-in;
}

body.correct {
    -webkit-animation: bg-green 1s ease-in;
    animation: bg-green 1s ease-in;
}

#pin {
    background: #212121;
    width: 20em;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    padding: 1em;
    border-radius: .3em;
    box-shadow: 4px 4px 8px rgba(0, 0, 0, 0.3);
    margin: auto;
    color: rgba(255, 255, 255, 0.2);
}

.dots {
    width: 50%;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-justify-content: space-around;
    -ms-flex-pack: distribute;
    justify-content: space-around;
    padding: 1em;
    padding-top: 3em;
}

.dot {
    position: relative;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 0.8em;
    width: 0.8em;
    height: 0.8em;
    -webkit-transform: scale3d(0.7, 0.7, 0.7);
    transform: scale3d(0.7, 0.7, 0.7);
}

.dot.active {
    -webkit-animation: growDot .3s ease;
    animation: growDot .3s ease;
    -webkit-animation-fill-mode: forwards;
    animation-fill-mode: forwards;
}

.dot.wrong {
    -webkit-animation: wrong .9s ease;
    animation: wrong .9s ease;
}

.dot.correct {
    -webkit-animation: correct .9s ease;
    animation: correct .9s ease;
}

#pin p {
    font-size: .8em;
}

.numbers {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-flex-flow: row wrap;
    -ms-flex-flow: row wrap;
    flex-flow: row wrap;
    -webkit-box-align: center;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-justify-content: space-around;
    -ms-flex-pack: distribute;
    justify-content: space-around;
    -webkit-align-content: flex-end;
    -ms-flex-line-pack: end;
    align-content: flex-end;
    margin: 2em 0;
}

.number {
    position: relative;
    width: 2.5em;
    height: 2.5em;
    margin: 0.5em;
    border-radius: 2.5em;
    border: 2px solid rgba(255, 255, 255, 0);
    text-align: center;
    line-height: 2.5em;
    font-weight: 400;
    font-size: 1.8em;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-transition: all .2s ease;
    transition: all .2s ease;
}

.number:hover {
    color: rgba(255, 255, 255, 0.5);
}

.number:hover:before {
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.number:before {
    content: "";
    position: absolute;
    left: -2px;
    width: 2.5em;
    height: 2.5em;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 2.5em;
    -webkit-transition: all .2s ease;
    transition: all .2s ease;
}

.number.grow:before {
    -webkit-animation: grow .2s ease;
    animation: grow .2s ease;
}

@-webkit-keyframes growDot {
    100% {
        background: white;
        -webkit-transform: scale3d(0.9, 0.9, 0.9);
        transform: scale3d(0.9, 0.9, 0.9);
    }
}

@keyframes growDot {
    100% {
        background: white;
        -webkit-transform: scale3d(0.9, 0.9, 0.9);
        transform: scale3d(0.9, 0.9, 0.9);
    }
}

@-webkit-keyframes grow {
    50% {
        -webkit-transform: scale3d(1.2, 1.2, 1.2);
        transform: scale3d(1.2, 1.2, 1.2);
    }
    100% {
        -webkit-transform: scale3d(1, 1, 1);
        transform: scale3d(1, 1, 1);
    }
}

@keyframes grow {
    50% {
        -webkit-transform: scale3d(1.2, 1.2, 1.2);
        transform: scale3d(1.2, 1.2, 1.2);
    }
    100% {
        -webkit-transform: scale3d(1, 1, 1);
        transform: scale3d(1, 1, 1);
    }
}

@-webkit-keyframes wrong {
    20% {
        background: crimson;
    }
    40% {
        -webkit-transform: translate(-15px, 0);
        transform: translate(-15px, 0);
    }
    60% {
        -webkit-transform: translate(10px, 0);
        transform: translate(10px, 0);
    }
    80% {
        -webkit-transform: translate(-5px, 0);
        transform: translate(-5px, 0);
    }
}

@keyframes wrong {
    20% {
        background: crimson;
    }
    40% {
        -webkit-transform: translate(-15px, 0);
        transform: translate(-15px, 0);
    }
    60% {
        -webkit-transform: translate(10px, 0);
        transform: translate(10px, 0);
    }
    80% {
        -webkit-transform: translate(-5px, 0);
        transform: translate(-5px, 0);
    }
}

@-webkit-keyframes correct {
    20% {
        background: limegreen;
    }
    40% {
        -webkit-transform: translate(0, -15px);
        transform: translate(0, -15px);
    }
    60% {
        -webkit-transform: translate(0, 10px);
        transform: translate(0, 10px);
    }
    80% {
        -webkit-transform: translate(0, -5px);
        transform: translate(0, -5px);
    }
}

@keyframes correct {
    20% {
        background: limegreen;
    }
    40% {
        -webkit-transform: translate(0, -15px);
        transform: translate(0, -15px);
    }
    60% {
        -webkit-transform: translate(0, 10px);
        transform: translate(0, 10px);
    }
    80% {
        -webkit-transform: translate(0, -5px);
        transform: translate(0, -5px);
    }
}

@-webkit-keyframes bg-red {
    50% {
        background: crimson;
    }
}

@keyframes bg-red {
    50% {
        background: crimson;
    }
}

@-webkit-keyframes bg-green {
    50% {
        background: limegreen;
    }
}

@keyframes bg-green {
    50% {
        background: limegreen;
    }
}

.select {
    height: 50px;
    width: 100%;
    border-radius: 25px;
    margin-top: 2em;
}

.select-element {
    width: 48%;
    float: left;
    color: rgba(255, 255, 255, 0.2);
    text-align: center;
    height: 50px;
    line-height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    -webkit-transition: all .2s ease;
    transition: all .2s ease;
}

.select-element:hover {
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: rgba(255, 255, 255, 0.5);
}

.select-element.active {
    color: rgba(255, 255, 255, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.5);
    background: rgb(44, 44, 44);
}

.select-main {
    border-radius: 25px 0 0 25px;
}

.select-flat {
    border-radius: 0 25px 25px 0;
}