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

html,
body {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    margin: 0;
    padding: 0;
    font-size: 16px;
    font-family: 'Open Sans', sans-serif;
    line-height: 1.5;
}

h1 {
    font-size: 3.75rem;
    margin-bottom: 1rem;
    color: #2581C4;
}
h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #2581C4;
}

p {
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.btn {
    padding: .75rem 1.75rem;
    font-size: 1rem;
    border-radius: 5rem;
    border: unset;
    background-color: white;
    box-shadow: 0 0 15px rgba(0,0,0,0.125);
    color: rgba(0,0,0,0.45);
    bottom: 2rem;
    position: absolute;
    cursor: pointer;
    transition: all 200ms ease;
}

.btn:hover {
    box-shadow: 0 0 15px rgba(0,0,0,0.2);
    color: #2581C4;
}

.main-content {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 2;
}


/* Screens */

.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 2rem;
    z-index: 5;
}

.screen:not(.active) {
    pointer-events: none;
}

.screen:not(.active) .btn-next {
    opacity: 0;
}

.screen .content {
    opacity: 0;
}

.btn-next {
    left: 50%;
    transform: translateX(-50%);
}



.screen-1 {
    display: flex;
    flex-flow: column nowrap;
    justify-content: center;
    align-items: center;
    padding: 14vw;
    text-align: center;
}

.screen-1 .content {
    margin-top: -15rem;
    opacity: 1;
}



.screen-2,
.screen-3,
.screen-4 {
    display: flex;
    flex-flow: column;
    justify-content: center;
    padding-left: 5rem;
}

.screen-2 .content,
.screen-3 .content,
.screen-4 .content {
    width: 50%;
    transform: translate(0,-50px);
}




#canvas {
    width: 50%;
    height: 100%;
    position: absolute;
    z-index: 1;
    top: 0;
    right: 50%;
    opacity: 0;
    transform: translateX(50%);
}