html {
    height: 100%;
    width: 100%;
    position: fixed;
}

body {
    height: 95%;
    display: block;
    margin: 8px;
    padding-bottom: env(safe-area-inset-bottom);
    background-color: #33342f;
    -webkit-user-select: none;
    user-select: none;
}

.flex-row {
    display: flex;
    flex-direction: row;
    gap: 5px;
    width: 100%;
}

.flex-col {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.grow {
    flex-grow: 1;
}

.top-level {
    box-sizing: border-box;
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr auto auto auto;
    gap: 5px;
    height: 100%;
    max-height: 900px;
    padding: 5px;
    max-width: 500px;
    background-color: #33342f;
    border-radius: 10px;
    border: solid 1px #828282;
    -webkit-box-shadow: 0px 0px 5px 2px rgba(255, 255, 255, 0.4);
    -moz-box-shadow: 0px 0px 5px 2px rgba(255, 255, 255, 0.4);
    box-shadow: 0px 0px 5px 2px rgba(255, 255, 255, 0.4);
}

pre {
    margin: 0px;
    text-shadow: 1px 1px 15px rgba(66, 69, 97, 0.5);
    overflow: auto;
}

#inputField {
    box-sizing: border-box;
    padding: 5px;
    width: 100%;
    height: 48px;
    white-space: pre;
    background-color: #9facb2;
    color: #424561;
    font-family: monospace;
    font-size: 2.15em;
    font-weight: bold;
    text-align: right;
    border: solid 1px rgba(0, 0, 0, 0.5);
    border-radius: 5px;
    box-shadow: 5px 5px 3px 0px rgba(0, 0, 0, 0.76) inset;
    text-shadow: 1px 1px 15px rgba(66, 69, 97, 0.2);
    -webkit-appearance: none;
    appearance: none;
}

.screen {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    min-height: 0;
    background-color: #9facb2;
    color: #424561;
    font-family: monospace;
    font-weight: bold;
    white-space: pre-line;
    box-shadow: 5px 5px 3px 0px rgba(0, 0, 0, 0.76) inset;
    text-shadow: 1px 1px 15px rgba(66, 69, 97, 0.2);
}

.top-row {
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    font-size: 1.5em;
}

.stack-and-messages {
    overflow-y: auto;
}

.stack {
    display: flex;
    flex-direction: column-reverse;
    overflow-y: auto;
    overflow-x: hidden;
    padding-left: 5px;
    padding-right: 5px;
    font-size: 2.15em;
}

.stack-row {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    will-change: transform, opacity;
    touch-action: pan-y;
}

.messages {
    font-size: 1.5em;
    padding-left: 5px;
    padding-right: 5px;
}

.border {
    box-sizing: border-box;
    border: solid 1px rgba(0, 0, 0, 0.5);
    border-radius: 5px;
    width: 100%;
    padding: 5px;
    overflow-x: auto;
}

.keypad-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: 5px 5px;
    touch-action: none;
    -webkit-user-select: none;
    user-select: none;
}

.keypad-6 {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-gap: 5px 5px;
    touch-action: none;
    -webkit-user-select: none;
    user-select: none;
}

.keypad-button {
    background: rgb(75, 77, 74);
    background: radial-gradient(
        circle,
        rgba(75, 77, 74, 1) 0%,
        rgba(87, 89, 86, 1) 100%
    );
    color: #eeeee4;
    border: solid 1px rgba(0, 0, 0, 0.5);
    box-shadow: inset 2px 2px 5px 0px rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    height: 2.5em;
    padding: 0;
    font-variant: small-caps;
    cursor: pointer;
}

.button-main {
    font-size: large;
}

.button-aux {
    font-size: medium;
}

.button-selected {
    border-color: indianred;
}

.span-2 {
    grid-column: span 2;
}