body,
html {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #fff;
    font-family: sans-serif;
    font-size: 14px;
}

canvas {
    width: 100vw;
    height: 100vh;
}

#progress-container {
    position: fixed;
    top: 50%;
    left: 50%;
}

dialog {
    width: 100%;
    text-align: center;
    max-width: 20em;
    color: white;
    background-color: #222;
    border: 1px solid #888;
    position: relative;
    transform: translate(-50%, -50%);
}

progress {
    width: 100%;
    height: 1em;
    border: none;
    background-color: #fff;
    color: #eee;
}

progress::-webkit-progress-bar {
    background-color: #333;
}

progress::-webkit-progress-value {
    background-color: #eee;
}

progress::-moz-progress-bar {
    background-color: #eee;
}

.tool-button {
    position: absolute;
    top: 8px;
    right: 8px;
    background-color: #000000cc;
    border: none;
    padding: 6px;
    margin: 0;
    border-radius: 2px;
    cursor: pointer;
}

.tool-button:hover {
    background-color: #222222cc;
}

.tool-button:active {
    background-color: #000000cc;
}

.tool-button:focus {
    outline: inherit;
}

.tool-button.active {
    outline: white solid 1px;
}

#upload-button {
    top: 8px;
}

#download-button {
    top: 48px;
}

#controls-display-button {
    top: 88px;
}

#controls-display {
    display: none;
    position: absolute;
    top: 96px;
    right: 44px;
    background-color: #000000cc;
    margin: 0;
    padding: 6px;
    color: #ddd;
    pointer-events: none;
}

#controls-display.active {
    display: block;
}

#controls-display p {
    margin: 0;
    padding: 1px;
}

.divider {
    width: 256px;
    border: 0;
    border-top: 1px solid #ddd;
    margin: 6px 0;
}

.control-item {
    display: flex;
    justify-content: space-between;
}

.control-name {
    text-align: left;
    color: #aaa;
}

.control-value {
    text-align: right;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: #222222;
    margin: 15% auto;
    padding: 16px;
    border: 1px solid #888;
    width: 80%;
    max-width: 768px;
    color: #ddd;
}

.modal-section {
    padding: 4px 0;
}

.modal .divider {
    width: calc(100% - 32px);
}

.close {
    float: right;
    font-size: 24px;
}

.close:hover,
.closer:focus {
    color: #aaa;
    text-decoration: none;
    cursor: pointer;
}

#url-input {
    width: calc(100% - 96px);
    background-color: #000;
    border: 1px solid #888;
    color: #ddd;
    padding: 4px;
    margin: 0;
}

.submit {
    width: 80px;
    background-color: #000;
    border: 1px solid #888;
    color: #ddd;
    padding: 4px;
    margin: 0;
    cursor: pointer;
}

.submit:hover {
    background-color: #222;
}

.submit:focus {
    outline: inherit;
}

input[type="file"] {
    display: none;
}

#file-input-label {
    width: 80px;
    background-color: #000;
    border: 1px solid #888;
    color: #ddd;
    padding: 4px;
    margin: 0;
    cursor: pointer;
}

#file-input-label:hover {
    background-color: #222;
}

#file-input-label:focus {
    outline: inherit;
}

#upload-error {
    display: none;
    color: #f00;
}

#about {
    margin: 8px 0;
    text-decoration: underline;
    cursor: pointer;
    pointer-events: auto;
}

#format-select {
    display: flex;
    align-items: center;
}

#format-select p {
    margin-right: 8px;
}

#format-select div {
    margin: 0 8px;
}

input[type="radio"] {
    appearance: none;
    display: inline-block;
    width: 16px;
    height: 16px;
    padding: 3px;
    background-clip: content-box;
    border: 1px solid #888;
    background-color: #000;
    border-radius: 50%;
}

input[type="radio"]:checked {
    background-color: #ddd;
}