@font-face {
    font-family: "icon";
    src: url("icon.woff") format("woff");
}

.hidden {
    display: none !important;
}

html {
    font-family: sans-serif;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;
    background-color: #404040;
    color: white;
    background-image: url(tex.png);
    touch-action: none;
    overflow: hidden;
}

html,
body,
.scene {
    width: 100%;
    height: 100%;
    margin: 0;
}

.scene {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-sizing: border-box;
    align-items: center;
    gap: 2rem;
    padding: 0.5rem;
}

p {
    margin: 0;
    font-size: 2rem;
    word-wrap: break-word;
    text-align: center;
}

p.background {
    color: gray;
    text-shadow:
        -1px -1px 0 black,
        1px -1px 0 black,
        -1px 1px 0 black,
        1px 1px 0 black;
    opacity: 0.08;
    font-weight: bold;
    font-size: 4rem;
    pointer-events: none;
}

@media (max-width: 32rem) {
    p.background {
        font-size: 13vw;
    }
}

.large {
    font-size: 4rem;
}

button {
    box-sizing: border-box;
    padding: 0;
    background-color: transparent;
    border: 1px solid black;
    height: 1.5em;
    width: 2em;
    min-width: 1.2em;
    min-height: 1.2em;
    max-width: 100%;
    max-height: 100%;
    border-radius: 2px;
    font-size: 2rem;
    color: white;
    font-family: "icon";
    overflow: hidden;
    cursor: pointer;
    transition: box-shadow 0.2s ease-out;
}

button:focus {
    outline: none;
}

button.click {
    box-shadow: 0 0 1rem white inset;
    transition: none;
}

button.top,
button.bottom,
button.left,
button.right {
    position: absolute;
    max-width: 50%;
    max-height: 50%;
}

button.top {
    top: 0;
    border-top: none;
}

button.bottom {
    bottom: 0;
    border-bottom: none;
}

button.left {
    left: 0;
    border-left: none;
}

button.right {
    right: 0;
    border-right: none;
}

.buttons {
    display: flex;
    flex-direction: row;
    min-height: 0;
    min-width: 0;
}

.buttons > button:not(:last-child) {
    border-right: none;
}

.scene > .grow,
.buttons > .grow {
    flex-grow: 1;
}

textarea {
    border: none;
    resize: none;
    font-size: 2rem;
    background-color: white;
    color: black;
    margin: 0;
    padding: 0 0.5rem;
}

textarea:focus {
    outline: none;
}

#keys {
    padding: 0;
    justify-content: end;
}

#keys .page {
    display: grid;
    gap: 0.5rem;
    min-height: 0;
    min-width: 0;
    grid-auto-rows: minmax(min-content, 6rem);
    grid-auto-columns: minmax(min-content, 8rem);
    padding: 0.5rem;
}

#keys .page * {
    width: 100%;
    height: 100%;
}

#text-input {
    align-items: stretch;
    padding: 0;
    gap: 0;
    flex-direction: row;
}

#text-input .buttons {
    flex-direction: column;
}

#text-input .buttons > button {
    border-top: none;
    border-right: none;
}

#text-input .buttons > button:last-child {
    border-bottom: none;
}

@media (max-aspect-ratio: 4/3) {
    #text-input {
        flex-direction: column;
    }

    #text-input .buttons {
        flex-direction: row;
    }

    #text-input .buttons > button {
        border-top: 1px solid black;
        border-bottom: none;
    }

    #text-input .buttons > button:first-child {
        border-left: none;
    }
}