/* BASE */

html, body {
    margin: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

/* CUBES SIMULATION */

#simulation {
    width: 100%;
    height: 100%;
    position: absolute;
}

/* MENU */

#menu {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 50%;
    margin: auto;
    text-align: justify;
    font-family: Arial, Helvetica, sans-serif;
    color: #ECFFFF;
    perspective: 1920px;
    -webkit-perspective: 1920px;
}
.menu-element {
    position: absolute;
    width: 33.33%;
    width: calc(100% / 3);
    height: 100%;
    display: none;
    opacity: 0;
    transition: transform-origin 400ms, transform 400ms, opacity 400ms;    
}
.menu-element.left .menu-element-content:hover, .menu-element.right .menu-element-content:hover, .menu-element.center .menu-element-content {
    box-shadow: 0px 0px 10px 2px rgba(255, 255, 255, 1);
}
.menu-element.left:hover, .menu-element.right:hover {
    cursor: pointer;
}
.menu-element.left-out,
.menu-element.left,
.menu-element.center,
.menu-element.right,
.menu-element.right-out {
    display: block;
}
.menu-element.left-out {
    transform-origin: 100% 50%;
    transform: translateX(-50%) rotate3d(0, 1, 0, -76deg);
}
.menu-element.left {
    transform-origin: 100% 50%;
    transform: translateX(0) rotate3d(0, 1, 0, -45deg);
    opacity: 1;
}
.menu-element.center {
    transform: translateX(100%);
    opacity: 1;
}
.menu-element.right {
    transform-origin: 0% 50%;
    transform: translateX(200%) rotate3d(0, 1, 0, 45deg);
    opacity: 1;
}
.menu-element.right-out {
    transform-origin: 0% 50%;
    transform: translateX(250%) rotate3d(0, 1, 0, 76deg);
}
.menu-element-background, .menu-element-content {
    position: absolute;
    height: 100%;
    width: 90%;
    box-sizing: border-box;
    margin: 0 auto;
    left: 0;
    right: 0;
    border-radius: 4px;
}
.menu-element-content {
    border: 2px solid #D0DCE7;
    padding: 2%;
}
.menu-element-background {
    background-color: #00aaaa;
    opacity: 0.5;

}

/* UTILITIES */

.stretch {
    width: 100%;
    display: inline-block;
    font-size: 0;
    line-height: 0;
}