:root {
    --idle-text-border-color: #ffffff60;
    --idle-background-color: #ffffff10;
    --highlight-color: #ffffff50;
    --border-color: #ffffff;
    --warning-color: #ffffff90;
    --border-warning-color: #ff0055;
    --hover-border-color: #ffffff80;
    --hover-background-color: #ffffff40;
    --selected-hover-background-color: #ffffff30;
    --selected-hover-border-color: #0000ff50;
}

* {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    overflow: hidden;
}

body {
    display: grid;
    grid-template-rows: auto auto 1fr auto;
    gap: 0.35rem;
    align-items: start;
    justify-items: center;
    background-color: #ffffff10;
    padding: 0.45rem;
    font-family: 'Poppins', sans-serif;
}

h3 {
    font-weight: 300;
    letter-spacing: 0.06em;
    font-size: clamp(0.95rem, 2.2vw, 1.2rem);
    margin: 0;
    animation: textColorChange 6s infinite;
}

.box-container {
    display: grid;
    grid-template-columns: repeat(2, minmax(96px, 1fr));
    gap: 0.35rem;
    width: min(100%, 320px);
}

.box {
    align-items: center;
    justify-content: center;
    display: flex;
    text-align: center;
    color: var(--idle-text-border-color);
    border: 1px solid var(--idle-text-border-color);
    min-height: 30px;
    padding: 0.1rem 0.35rem;
    font-size: 0.72rem;
    font-weight: 300;
    letter-spacing: 0.01em;
    cursor: pointer;
    transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.box:hover {
    background: var(--hover-background-color);
    color: var(--hover-border-color);
    border-color: var(--hover-border-color);
}

.box.selected {
    background-color: var(--highlight-color);
    border-color: var(--border-color);
    color: var(--border-color);
}

body.touch-screen .box:hover {
    background: none;
    color: var(--idle-text-border-color);
    border-color: var(--idle-text-border-color);
}

.body-container {
    display: grid;
    place-items: center;
    width: 100%;
    min-height: 0;
}

.image-container {
    width: min(100%, 360px);
    max-height: 100%;
    aspect-ratio: 1;
    border: 1px solid var(--idle-text-border-color);
}

.center-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.output {
    margin-top: 0.2rem;
    text-align: center;
    font-size: 0.62rem;
    line-height: 1.25;
    font-family: 'Source Code Pro', monospace;
    color: var(--idle-text-border-color);
}

@keyframes textColorChange {
    0% {
        color: var(--idle-text-border-color);
    }

    50% {
        color: #ffffff;
    }

    100% {
        color: var(--idle-text-border-color);
    }
}

@media (max-width: 768px) {
    body {
        padding: 0.35rem;
        gap: 0.3rem;
    }

    .box-container {
        width: min(100%, 280px);
    }

    .image-container {
        width: min(100%, 300px);
    }
}