:root {
    --background-color: #212121;
    --text-color: #b0bec5;
    --scrollbar-track-color: #2c2c2c;
    --scrollbar-thumb-color: #555;
    --scrollbar-thumb-hover-color: #888;
    --spacing: 2rem;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
    font-family: monospace;
    font-size: 16px;
}

body {
    background: var(--background-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
}

form {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

textarea,
pre {
    flex-grow: 1;
    margin: 0;
    padding: var(--spacing);
    background: none;
    border: none;
    outline: none;
    resize: none;
    color: inherit;
    font-size: 1rem;
    line-height: 1.6;
    font-family: inherit;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

pre {
    background-color: transparent !important;
}

button[type="submit"] {
    display: none;
}

textarea::-webkit-scrollbar,
pre::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

textarea::-webkit-scrollbar-track,
pre::-webkit-scrollbar-track {
    background: var(--scrollbar-track-color);
}

textarea::-webkit-scrollbar-thumb,
pre::-webkit-scrollbar-thumb {
    background-color: var(--scrollbar-thumb-color);
    border-radius: 6px;
    border: 3px solid var(--scrollbar-track-color);
}

textarea::-webkit-scrollbar-thumb:hover,
pre::-webkit-scrollbar-thumb:hover {
    background-color: var(--scrollbar-thumb-hover-color);
}

textarea,
pre {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb-color) var(--scrollbar-track-color);
}

pre > code > span > span:first-child {
    display: inline-block;
    width: 4em;
    color: #555;
    user-select: none;
    -webkit-user-select: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

@media (max-width: 768px) {
    :root {
        --spacing: 1rem;
    }
    html {
        font-size: 14px;
    }
}