@font-face {
    font-family: 'Roboto';
    font-style: normal;
    font-weight: 300;
    src: url(roboto-300.woff2) format('woff2');
}

:root {
    --header-height: 4em;
    --footer-height: 4em;
    --logo-height: 3em;
    --color-1: #1f2429;
    --color-2: #3d4752;
    --color-3: #6f7984;
    --color-4: #eef2f7;
}

html, body {
    height: 100%;
}

body {
    margin: 0;
    display: flex;
    flex-direction: column;
    font-family: Roboto, sans-serif;
    line-height: 1.25;
    color: var(--color-2);
    background-color: var(--background__body, var(--color-1));
}

:not(:root):fullscreen::backdrop {
    background: var(--background__body, var(--color-1));
}

.hidden {
    display: none !important;
}

.inner {
    width: var(--inner-width, unset);
}

#header {
    flex: 0 0 var(--header-height);
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--color-1);
}

#logo {
    background-repeat: no-repeat;
    background-size: auto 100%;
    height: var(--logo-height);
    margin: auto 0;
}

#content {
    flex: 1;
    display: flex;
    justify-content: center;
    padding: var(--content-padding, 0);
}

#content .inner {
    background-color: var(--background__content, transparent);
}

#game-canvas-container {
    position: relative;
}

#play {
    position: absolute;
    z-index: 1;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

#play::before,
#play::after {
    content: '';
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    translate: -50% -50%;
    transition: .1s;
}

#play::before {
    width: 5em;
    height: 5em;
    background-color: var(--color-1);
    border-radius: 50%;
}

#play::after {
    width: 2em;
    height: 2.5em;
    background-color: var(--color-4);
    clip-path: polygon(0 0, 100% 50%, 0 100%);
    margin-left: .325em;
}

#play:hover::before,
#play:hover::after {
    scale: 1.25;
}

#play:hover::before {
    background-color: var(--accent-color, var(--color-3));
}

#progress {
    position: absolute;
    z-index: 1;
    width: 13.5em;
    height: max-content;
    top: 50%;
    left: 50%;
    translate: -50% -50%;
    display: flex;
    flex-direction: column;
    user-select: none;
    pointer-events: none;
}

#progresstext {
    flex: 1;
    color: var(--color-4);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: .5em 0;
}

#progressbar {
    flex: 0 0 1em;
    width: 100%;
    background-color: var(--color-3);
    border: .175em solid var(--color-1);
    box-sizing: border-box;
}

#progressbarvalue {
    width: 0;
    height: 100%;
    background-color: var(--accent-color, var(--color-4));
}

#fullscreen-button {
    position: absolute;
    z-index: 2;
    background: url(fullscreen.svg) var(--background__game-canvas-border, var(--color-1)) no-repeat;
    background-size: 2rem;
    background-position: .25em .25em;
    border: none;
    width: 2.5rem;
    height: 2.5rem;
    cursor: pointer;
    bottom: .5em;
    right: .5em;
    opacity: 0;
    scale: .9;
    transition: .1s opacity, .1s scale;
}

#game-canvas-container:has(#play:hover) #fullscreen-button,
#game-canvas-container:has(#game-canvas:hover) #fullscreen-button,
#fullscreen-button:hover,
#fullscreen-button:hover::before {
    opacity: 1;
    scale: 1;
}

#game-canvas-container:has(#game-canvas.clickable:hover) #fullscreen-button,
#game-canvas-container:has(#game-canvas.clickable:hover) #fullscreen-button::before,
#fullscreen-button:hover,
#fullscreen-button:hover::before {
    background-color: var(--accent-color, var(--color-3));
}

:fullscreen #fullscreen-button {
    display: none;
}

#game-canvas {
    display: block;
    transform-origin: 0% 0%;
    background-color: var(--color-2);
    border-bottom: 0 solid var(--background__game-canvas-border);
    box-shadow: 0 1em 6em -3em black;
}

#game-canvas.clickable {
    cursor: pointer;
}

:fullscreen #game-canvas {
    position: fixed;
    margin: 0;
    border-bottom-width: 0 !important;
    cursor: default;
}

#footer {
    flex: 0 0 var(--footer-height);
    background-color: var(--color-1);
    display: flex;
    justify-content: center;
    align-items: center;
}