html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    overflow: hidden;
    font-family: Arial, sans-serif;
}

button {
    min-width: 7em;
}

select {
    min-width: 7em;
    text-align: center;
}

.theme-dmg {
    --color-gb: #d2d6cd;
    --color-gb-screen-border: #a4a6af;
    --color-round-buttons: #b90866;
    --color-round-buttons-label: #eecede;
    --color-rectangle-buttons: #535353;
    --color-rectangle-button-label: #797c77;
    --color-direction-buttons: #2a2e30;
    --color-direction-button-circle: #3c4446;
}

.theme-cgb {
    --color-gb: #e6ca2d;
    --color-gb-screen-border: #383c3f;
    --color-round-buttons: #2a2e30;
    --color-round-buttons-label: #919da3;
    --color-rectangle-buttons: #2a2e30;
    --color-rectangle-button-label: #636661;
    --color-direction-buttons: #2a2e30;
    --color-direction-button-circle: #3c4446;
}

.theme-gba {
    --color-gb: #4b3e75;
    --color-gb-screen-border: #383c3f;
    --color-round-buttons: #2a2e30;
    --color-round-buttons-label: #919da3;
    --color-rectangle-buttons: #2a2e30;
    --color-rectangle-button-label: #636661;
    --color-direction-buttons: #2a2e30;
    --color-direction-button-circle: #3c4446;
}

.emscripten {
    padding-right: 0;
    margin-left: auto;
    margin-right: auto;
    display: block;
}

div.emscripten {
    text-align: center;
}

/* the canvas *must not* have any border or padding, or mouse coords will be wrong */
canvas.emscripten {
    border: 0px none;
}

.spinner {
    height: 50px;
    width: 50px;
    margin: 0px auto;
    -webkit-animation: rotation .8s linear infinite;
    -moz-animation: rotation .8s linear infinite;
    -o-animation: rotation .8s linear infinite;
    animation: rotation 0.8s linear infinite;
    border-left: 10px solid #d2d6cd;
    border-right: 10px solid #d2d6cd;
    border-bottom: 10px solid #d2d6cd;
    border-top: 10px solid #9bbc09;
    border-radius: 100%;
    background-color: #a4a6af;
}

@-webkit-keyframes rotation {
    from {
        -webkit-transform: rotate(0deg);
    }

    to {
        -webkit-transform: rotate(360deg);
    }
}

@-moz-keyframes rotation {
    from {
        -moz-transform: rotate(0deg);
    }

    to {
        -moz-transform: rotate(360deg);
    }
}

@-o-keyframes rotation {
    from {
        -o-transform: rotate(0deg);
    }

    to {
        -o-transform: rotate(360deg);
    }
}

@keyframes rotation {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

#emscripten-status {
    position: absolute;
    left: 50%;
    top: 50%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

.topnav {
    background-color: #d2d6cd;
    overflow: hidden;

    box-shadow: 0 0 2em gray;
    -o-box-shadow: 0 0 2em gray;
    -moz-box-shadow: 0 0 2em gray;
    -webkit-box-shadow: 0 0 2em gray;
}

.topnav a {
    float: left;
    color: black;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 17px;
}

.topnav a:hover {
    background-color: #a4a6af;
    color: black;
}

.topnav a.split {
    float: right;
    background-color: #272727;
    color: white;
}

.topnav a.split:hover {
    background-color: #000000;
}

.topnav a.active {
    background-color: #9bbc09;
    color: white;
}

.separator {
    display: flex;
    flex-direction: row;
    align-items: center;
    text-align: center;
    justify-content: space-between;
    width: 100%;
    margin: 1em 0 1em 0;
}

.separator::before,
.separator::after {
    content: "";
    flex: 1;
    border-bottom: 1px solid;
}

.separator:not(:empty)::before {
    margin-right: 0.5em;
}

.separator:not(:empty)::after {
    margin-left: 0.5em;
}

#open-menu {
    position: absolute;
    top: 1em;
    right: -5em;
    z-index: 2;

    border: 0;
    background: transparent;
    box-sizing: border-box;
    width: 0;
    height: 0.9em;
    border-color: transparent transparent transparent black;
    transition: 100ms all ease;
    cursor: pointer;
    border-style: double;
    border-width: 0 0 0 0.9em;
}

#open-menu:focus {
    outline: none;
}

#open-menu.paused {
    border-color: transparent transparent transparent white;
    border-style: solid;
    border-width: 0.4em 0 0.4em 0.8em;
}

#open-menu:not(:disabled):hover {
    filter: brightness(80%);
}

#open-menu:disabled {
    cursor: auto;
}

button {
    margin: 0.2em 0.4em;
}

#menu {
    position: absolute;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;

    height: 100%;
    width: 100%;
    z-index: 1;

    top: 0;
    left: 0;

    background-color: rgba(0, 0, 0, 0.8);
    border-radius: 2%;
}

#menu-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;

    height: 100%;

    max-width: 20em;
    color: white;
    padding: 1em;
}

.options-container {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.options-container div {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin: 0.1em 0 0.1em 0;
}

.options-container div .slider {
    margin-left: 7em;
}

.slider {
    width: 10em;
}

.slider-label {
    width: 4em;
    text-align: end;
}

#gb {
    display: flex;
    justify-content: center;
    flex-direction: column;

    position: fixed;
    top: 50%;
    left: 50%;
    background-color: var(--color-gb);
    padding: 2em 2em 0 2em;
    border-radius: 2%;

    box-shadow: 0 0 2em gray;
    -o-box-shadow: 0 0 2em gray;
    -moz-box-shadow: 0 0 2em gray;
    -webkit-box-shadow: 0 0 2em gray;

    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);

    user-select: none;
    -o-user-select: none;
    -moz-user-select: none;
    -webkit-user-select: none;
}

#gb-screen-border {
    padding: 2em;
    border-radius: 3%;
    background-color: var(--color-gb-screen-border);
}

#gb-controls {
    display: flex;
    flex-direction: column;
    height: 12em;
    margin: 1em 1em 0 1em;
}

.gb-button:hover {
    filter: brightness(100%);
    cursor: pointer;
}
.gb-button:active {
    filter: brightness(60%);
}

#gb-main-buttons {
    display: flex;
    height: 75%;
}

#gb-round-buttons {
    position: relative;
    width: 50%;
}

.gb-round-button {
    position: absolute;
    color: var(--color-round-buttons-label);
    background-color: var(--color-round-buttons);
    filter: brightness(80%);
    text-align: center;
    line-height: 3em;
    width: 3em;
    height: 3em;
    border-radius: 50%;
}

#gb-a {
    top: 1.5em;
    right: 0;
}

#gb-b {
    top: 3.5em;
    right: 4em;
}

#gb-direction-buttons {
    position: relative;
    width: 50%;
}

.gb-direction-button-circle {
    position: absolute;
    background-color: var(--color-direction-button-circle);
    width: 1em;
    height: 1em;
    border-radius: 1em;
    top: 25%;
    left: 25%;
}

.gb-direction-button {
    position: absolute;
    background-color: var(--color-direction-buttons);
    filter: brightness(80%);
    width: 2em;
    height: 2em;
}

#gb-up {
    border-radius: 0.4em 0.4em 0 0;
    height: 2.1em;
    top: 1.1em;
    left: 2em;
}

#gb-down {
    border-radius: 0 0 0.4em 0.4em;
    height: 2.1em;
    top: 4.9em;
    left: 2em;
}

#gb-left {
    border-radius: 0.4em 0 0 0.4em;
    width: 2.1em;
    top: 3em;
    left: 0.1em;
}

#gb-right {
    border-radius: 0 0.4em 0.4em 0;
    width: 2.1em;
    top: 3em;
    left: 3.9em;
}

#gb-center {
    position: absolute;
    background-color: var(--color-direction-buttons);
    filter: brightness(80%);
    width: 2em;
    height: 2em;
    top: 3em;
    left: 2em;
}

#gb-start-select-buttons {
    display: flex;
    justify-content: center;
}

#gb-start-button-container {
    position: relative;
    width: 50%;
}

#gb-select-button-container {
    position: relative;
    width: 50%;
}

.gb-rectangle-button {
    position: absolute;
    width: 3.5em;
    height: 0.8em;
    border-radius: 0.4em;
    background-color: var(--color-rectangle-buttons);
    filter: brightness(80%);
}

#gb-start {
    left: 1em;
}

#gb-select {
    right: 1em;
}

.gb-button-label {
    position: absolute;
    color: var(--color-rectangle-button-label);
    text-align: center;
    bottom: -2.1em;
}

#gb-start-label {
    left: 1.8em;
}

#gb-select-label {
    right: 1.5em;
}