@import url("https://fonts.googleapis.com/css?family=Open+Sans:800|Roboto+Condensed:700i");

body {
    width: 100%;
    min-height: 80vh;
    height: 100%;
    padding: 0;
    margin: 0;
}

#starter {
    color: #0f172a;
    z-index: 1;
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300px;
    height: 50px;
    margin-top: -25px;
    margin-left: -150px;
    text-align: center;
    font-family: 'Roboto Condensed', sans-serif;
    font-size: 2em;
    font-weight: 600;
    cursor: pointer;
}

#scene {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 1200px;
    height: 600px;
    overflow: hidden;
    margin-top: -300px;
    margin-left: -600px;
    background-color: #0f172a;
    box-shadow: 0 0 0 2px white inset;
}

#curtain {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
}

#curtain .left,
#curtain .right {
    position: absolute;
    top: 0;
    width: 50%;
    height: 100%;
    filter: brightness(180%);
    background-image: url("curtain.svg");
    background-size: cover;
    background-repeat: no-repeat;
}

#curtain .left {
    left: 0;
    transform-origin: top right;
}

#curtain .right {
    left: 50%;
    transform-origin: top left;
}

.ground {
    position: absolute;
    left: 50%;
    top: 133%;
    width: 10000px;
    height: 10000px;
    margin-left: -5000px;
    border-radius: 100%;
    box-shadow: 0 0 100px 100px white;
}

img {
    position: absolute;
    left: 50%;
    top: 50%;
    display: block;
    width: 50vw;
    height: 40vh;
    margin-left: -25vw;
    margin-top: -20vh;
    text-align: center;
    font-family: 'Open Sans', sans-serif;
    font-size: 10em;
    color: white;
    /* transform: scale(0.75); */
    opacity: 0;
}

/* **********
	opening
********** */

#scene.expand {
    width: 140%;
    left: -20%;
    margin-left: 0;
    background-color: rgb(32, 32, 32);
    box-shadow: 0 0 0 0 white inset;
    animation-fill-mode: forwards;
    animation-name: expand-scene-horizontaly, expand-scene-verticaly;
    animation-duration: 2.5s, 1.5s;
    animation-timing-function: ease-in-out, ease-in-out;
    animation-delay: 0s, 2.5s;
    animation-iteration-count: 1, 1;
    animation-direction: normal, normal;
}

#curtain.open .left,
#curtain.open .right {
    filter: brightness(100%);
}

#curtain.open .left {
    animation-fill-mode: forwards;
    animation-name: curtain-opening, left-curtain-opening;
    animation-duration: 2s, 4s;
    animation-timing-function: ease-in-out, ease-in-out;
    animation-delay: 0s, 0s;
    animation-iteration-count: 1, 1;
    animation-direction: normal, normal;
}

#curtain.open .right {
    animation-fill-mode: forwards;
    animation-name: curtain-opening, right-curtain-opening;
    animation-duration: 2s, 4s;
    animation-timing-function: ease-in-out, ease-in-out;
    animation-delay: 0s, 0s;
    animation-iteration-count: 1, 1;
    animation-direction: normal, normal;
}

#scene.expand .ground {
    animation-fill-mode: forwards;
    animation-name: ground-rising;
    animation-duration: 6s;
    animation-timing-function: ease-out;
    animation-delay: 0s;
    animation-iteration-count: 1;
    animation-direction: normal;
}

#scene.expand img {
    animation-fill-mode: forwards;
    animation-name: text-zoom, text-fade-in, text-glowing;
    animation-duration: 5s, 1s, 1s;
    animation-timing-function: ease-out, ease-in-out, ease-in-out;
    animation-delay: 3s, 3s, 0s;
    animation-iteration-count: 1, 1, infinite;
    animation-direction: normal, normal, alternate;
}

.fade-out {
    animation-fill-mode: forwards;
    animation-name: fade-out;
    animation-duration: 1s;
    animation-timing-function: ease-in;
    animation-delay: 0s;
    animation-iteration-count: 1;
    animation-direction: normal;
}

/* **********
	animations
********** */

@keyframes expand-scene-horizontaly {

    /* 2.5
	s */
    from {
        width: 1200px;
        left: 50%;
        margin-left: -600px;
        background-color: rgb(0, 0, 0);
        box-shadow: 0 0 0 2px white inset;
    }

    to {
        width: 140%;
        left: -20%;
        margin-left: 0;
        background-color: #0f172a;
        box-shadow: 0 0 0 0 white inset;
    }
}

@keyframes expand-scene-verticaly {

    /* 1.5s */
    from {
        top: 50%;
        height: 600px;
        margin-top: -300px;
    }

    to {
        top: 0;
        height: 100%;
        margin-top: 0;
    }
}

@keyframes curtain-opening {

    /* 2s */
    from {
        filter: brightness(180%);
    }

    to {
        filter: brightness(100%);
    }
}

@keyframes left-curtain-opening {

    /* 4s */
    from {
        transform: translate(0) rotate(0) scale(1, 1);
    }

    to {
        transform: translate(-100%) rotate(20deg) scale(0, 2);
    }
}

@keyframes right-curtain-opening {

    /* 4s */
    from {
        transform: translate(0) rotate(0) scale(1, 1);
    }

    to {
        transform: translate(100%) rotate(-20deg) scale(0, 2);
    }
}

@keyframes ground-rising {
    from {
        top: 133%;
    }

    to {
        top: 105%;
    }
}

@keyframes text-zoom {
    from {
        transform: scale(0.75);
    }

    to {
        transform: scale(1);
    }
}

@keyframes text-fade-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes text-glowing {
    from {
        text-shadow: 0 0 10px white;
    }

    to {
        text-shadow: 0 0 10px white, 0 0 20px white, 0 0 30px dodgerblue;
    }
}

@keyframes fade-out {
    from {
        color: black;
        opacity: 1;
    }

    to {
        color: white;
        opacity: 0;
    }
}

* {
    position: relative;
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

html {
    /* background-color: #000; */
}

body {
    overflow: hidden;
    color: rgba(255, 255, 255, 0.5);
    font-family: "Russo One", arial, sans-serif;
    line-height: 1.25;
    letter-spacing: 0.06em;
}

.hide {
    opacity: 0;
    visibility: hidden;
}

.remove {
    display: none !important;
}

.blur {
    -webkit-filter: blur(12px);
    filter: blur(12px);
}

.container {
    height: 100%;
    display: -webkit-box;
    display: flex;
    -webkit-box-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    align-items: center;
}

.loading-init {
    width: 100%;
    align-self: center;
    text-align: center;
    text-transform: uppercase;
}

.loading-init__header {
    font-size: 2.2em;
}

.loading-init__status {
    margin-top: 1em;
    font-size: 0.8em;
    opacity: 0.75;
}

.stage-container {
    overflow: hidden;
    box-sizing: initial;
    border: 1px solid #222;
    margin: -1px;
}

@media (max-width: 840px) {
    .stage-container {
        border: none;
        margin: 0;
    }
}

.canvas-container {
    width: 100%;
    height: 100%;
    -webkit-transition: -webkit-filter 0.3s;
    transition: -webkit-filter 0.3s;
    transition: filter 0.3s;
    transition: filter 0.3s, -webkit-filter 0.3s;
}

.canvas-container canvas {
    position: absolute;
    mix-blend-mode: lighten;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

.controls {
    position: absolute;
    top: 0;
    width: 100%;
    padding-bottom: 50px;
    display: -webkit-box;
    display: flex;
    -webkit-box-pack: justify;
    justify-content: space-between;
    -webkit-transition: opacity 0.3s, visibility 0.3s;
    transition: opacity 0.3s, visibility 0.3s;
}

@media (min-width: 840px) {
    .controls {
        visibility: visible;
    }

    .controls.hide:hover {
        opacity: 1;
    }
}

.menu {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.42);
    -webkit-transition: opacity 0.3s, visibility 0.3s;
    transition: opacity 0.3s, visibility 0.3s;
}

.menu__inner-wrap {
    display: -webkit-box;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    flex-direction: column;
    -webkit-box-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    align-items: center;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    -webkit-transition: opacity 0.3s;
    transition: opacity 0.3s;
}

.menu__header {
    margin-top: auto;
    margin-bottom: 8px;
    padding-top: 16px;
    font-size: 2em;
    text-transform: uppercase;
}

.menu__subheader {
    margin-bottom: auto;
    padding-bottom: 12px;
    font-size: 0.86em;
    opacity: 0.8;
}

.menu form {
    width: 100%;
    max-width: 400px;
    padding: 0 10px;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
}

.menu .form-option {
    display: -webkit-box;
    display: flex;
    -webkit-box-align: center;
    align-items: center;
    margin: 16px 0;
    -webkit-transition: opacity 0.3s;
    transition: opacity 0.3s;
}

.menu .form-option label {
    display: block;
    width: 50%;
    padding-right: 12px;
    text-align: right;
    text-transform: uppercase;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.menu .form-option--select select {
    display: block;
    width: 50%;
    height: 30px;
    font-size: 1rem;
    font-family: "Russo One", arial, sans-serif;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.06em;
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.menu .form-option--select select option {
    background-color: black;
}

.menu .form-option--checkbox input {
    display: block;
    width: 26px;
    height: 26px;
    margin: 0;
    opacity: 0.5;
}

@media (max-width: 840px) {

    .menu .form-option select,
    .menu .form-option input {
        outline: none;
    }
}

.close-menu-btn {
    position: absolute;
    top: 0;
    right: 0;
}

.btn {
    opacity: 0.16;
    width: 50px;
    height: 50px;
    display: -webkit-box;
    display: flex;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    cursor: default;
    -webkit-transition: opacity 0.3s;
    transition: opacity 0.3s;
}

.btn--bright {
    opacity: 0.5;
}

@media (min-width: 840px) {
    .btn:hover {
        opacity: 0.32;
    }

    .btn--bright:hover {
        opacity: 0.75;
    }
}

.btn svg {
    display: block;
    margin: auto;
}

.credits {
    margin-top: auto;
    margin-bottom: 10px;
    padding-top: 6px;
    font-size: 0.8em;
    opacity: 0.75;
}

.credits a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
}

.credits a:hover,
.credits a:active {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: underline;
}

.help-modal {
    display: -webkit-box;
    display: flex;
    -webkit-box-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    align-items: center;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    visibility: hidden;
    -webkit-transition-property: visibility;
    transition-property: visibility;
    -webkit-transition-duration: 0.25s;
    transition-duration: 0.25s;
}

.help-modal__overlay {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    opacity: 0;
    -webkit-transition-property: opacity;
    transition-property: opacity;
    -webkit-transition-timing-function: ease-in;
    transition-timing-function: ease-in;
    -webkit-transition-duration: 0.25s;
    transition-duration: 0.25s;
}

.help-modal__dialog {
    display: -webkit-box;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    flex-direction: column;
    -webkit-box-align: center;
    align-items: center;
    max-width: 400px;
    max-height: calc(100vh - 100px);
    margin: 10px;
    padding: 20px;
    border-radius: 0.3em;
    background-color: rgba(0, 0, 0, 0.4);
    opacity: 0;
    -webkit-transform: scale(0.9, 0.9);
    transform: scale(0.9, 0.9);
    -webkit-transition-property: opacity, -webkit-transform;
    transition-property: opacity, -webkit-transform;
    transition-property: opacity, transform;
    transition-property: opacity, transform, -webkit-transform;
    -webkit-transition-timing-function: ease-in;
    transition-timing-function: ease-in;
    -webkit-transition-duration: 0.25s;
    transition-duration: 0.25s;
}

@media (min-width: 840px) {
    .help-modal__dialog {
        font-size: 1.25rem;
        max-width: 500px;
    }
}

.help-modal__header {
    font-size: 1.75em;
    text-transform: uppercase;
    text-align: center;
}

.help-modal__body {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    margin: 1em 0;
    padding: 1em 0;
    border-top: 1px solid rgba(255, 255, 255, 0.25);
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.75);
}

.help-modal__close-btn {
    flex-shrink: 0;
    outline: none;
    border: none;
    border-radius: 2px;
    padding: 0.25em 0.75em;
    margin-top: 0.36em;
    font-family: "Russo One", arial, sans-serif;
    font-size: 1em;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background-color: rgba(255, 255, 255, 0.25);
    -webkit-transition: color 0.3s, background-color 0.3s;
    transition: color 0.3s, background-color 0.3s;
}

.help-modal__close-btn:hover,
.help-modal__close-btn:active,
.help-modal__close-btn:focus {
    color: #FFF;
    background-color: #09F;
}

.help-modal.active {
    visibility: visible;
    -webkit-transition-duration: 0.4s;
    transition-duration: 0.4s;
}

.help-modal.active .help-modal__overlay {
    opacity: 1;
    -webkit-transition-timing-function: ease-out;
    transition-timing-function: ease-out;
    -webkit-transition-duration: 0.4s;
    transition-duration: 0.4s;
}

.help-modal.active .help-modal__dialog {
    opacity: 1;
    -webkit-transform: scale(1, 1);
    transform: scale(1, 1);
    -webkit-transition-timing-function: ease-out;
    transition-timing-function: ease-out;
    -webkit-transition-duration: 0.4s;
    transition-duration: 0.4s;
}