:root {
    --radius-sm: 5px;
    --radius-md: 10px;
    --spacing-sm: 5px;
    --spacing-md: 10px;
    --color-gray-100: #000000;
    --color-gray-200: #222222;
    --color-gray-300: #444444;
    --color-gray-400: #666666;
    --color-gray-500: #888888;
    --color-gray-600: #aaaaaa;
    --color-gray-700: #cccccc;
    --color-gray-800: #eeeeee;
    --color-gray-900: #ffffff;

    --color-primary: #ff6f61;

    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    --text-color: var(--color-gray-900);
}
html {
    background-color: var(--color-gray-100);
    height: 100%;
}

body {
    margin: 0;
    width: 100%;
    height: 100%;

    font-family: var(--font-family);
    color: var(--text-color);
}

#shell {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 100%;
    padding: 0;
    overflow: hidden;
}

#content {
    box-sizing: border-box;
    width: 80%;
    height: 100%;

    display: flex;
    flex-direction: column;
    justify-content: center;

    padding: var(--spacing-md);
}

#shell.sidebar-hidden #content {
    width: 100%;
}

#canvas {
    aspect-ratio: 8 / 5;

    border: solid 1px var(--color-gray-200);
    border-radius: var(--radius-md);
}
label {
    font-size: 0.75rem;
    white-space: nowrap;
    flex: 1;
}

#sidebar {
    position: relative;
    width: 20%;
    height: 100%;
    padding: var(--spacing-md);
    box-sizing: border-box;
    background-color: var(--color-gray-200);
    overflow-y: scroll;

    #top-section {
        overflow-y: scroll;
    }
    h1 {
        font-size: 1rem;
        margin: 0;
    }

    h2 {
        font-size: 0.9rem;
        margin-bottom: var(--spacing-md);
    }

    sub {
        font-size: 0.8rem;
        opacity: 0.8;
    }

    .row {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        margin-bottom: var(--spacing-md);
    }

    button {
        padding: var(--spacing-sm) var(--spacing-md);
        border: none;
        border-radius: var(--radius-sm);

        background-color: var(--color-gray-300);
        color: var(--text-color);
        cursor: pointer;

        flex: 1;
    }

    button:hover {
        filter: brightness(1.2);
    }

    button:not(:last-child),
    input:not(:last-child),
    label:not(:last-child) {
        margin-right: var(--spacing-sm);
    }

    input {
        padding: var(--spacing-sm);
        border: 1px solid var(--color-gray-300);
        border-radius: var(--radius-sm);

        background-color: var(--color-gray-200);
        color: var(--text-color);
        /*shrink as needed while label is visible*/
        flex: 1;
        width: 100%;
    }

    input:hover {
        background-color: var(--color-gray-300);
    }

    /*no outline on focus*/
    input:focus {
        outline: none;
        background-color: var(--color-gray-300);
        border: 1px solid var(--color-gray-400);
    }

    /* Chrome, Safari, Edge, Opera */
    input::-webkit-outer-spin-button,
    input::-webkit-inner-spin-button {
        -webkit-appearance: none;
        margin: 0;
    }

    /* Firefox */
    input[type="number"] {
        -moz-appearance: textfield;
    }

    a {
        color: var(--color-primary);
        text-decoration: none;
    }
}

#shell.sidebar-hidden #sidebar {
    display: none;
}

#toggleSidebar {
    display: block;
    background-color: #44444444;
    backdrop-filter: blur(4px);
    color: white;
    border: 1px solid var(--color-gray-200);
    content: ">";
    font-size: 0.75rem;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    position: absolute;
    top: var(--spacing-sm);
    right: calc(20% + var(--spacing-md));
    z-index: 10;
}
#shell.sidebar-hidden #toggleSidebar {
    right: var(--spacing-sm);
}
#fps {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    color: white;
    font: 20px monospace;
}

#sidebar:hover #log-wrapper:not(:hover) {
    opacity: 0;
    pointer-events: none;
}

#log-wrapper {
    position: absolute;
    right: 0;
    left: 0;
    bottom: 0;
    height: 20vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    overflow-y: scroll;
    background-color: var(--color-gray-200);
    transition: opacity 0.3s;

    #log {
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
        color: white;
        font: 10px monospace;
        text-align: right;

        span {
            /*wrap even if the word is too long*/
            word-break: break-all;
            padding: var(--spacing-sm);
        }

        span:nth-child(odd) {
            background-color: var(--color-gray-300);
        }
    }
}

#log-wrapper::after {
    content: "";
    position: absolute;
    top: 0;
    width: 100%;
    height: 80px;
    background: linear-gradient(0deg, #22222200, #222222ff);
}

kbd {
    background-color: var(--color-gray-300);
    border: 1px solid var(--color-gray-400);
    border-radius: var(--radius-sm);
    padding: 0 var(--spacing-sm);
    margin: 0 var(--spacing-sm);
}

#info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 20%;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: row;
    justify-content: space-between;

    color: white;
    font: 20px monospace;

    span {
        font-size: 0.75rem;
    }
}

#shell.sidebar-hidden #info {
    right: 0;
}

#noGL,
#inactiveTab {
    position: absolute;
    width: 80%;
    color: var(--text-color);
    font-size: 1.5rem;
    font-family: monospace;
    text-align: center;
}

#shell.sidebar-hidden #noGL,
#shell.sidebar-hidden #inactiveTab {
    width: 100%;
}

#matrixDisplay {
    /*grid layout*/
    display: grid;
    width: 100%;
    max-width: 300px;
    aspect-ratio: 1 / 1;
    border: solid 1px var(--color-gray-200);
    overflow: hidden;

    button {
        font-size: 0;
        color: white;
        border: none;
        border-radius: 0;
        cursor: pointer;
        margin-right: 0 !important;
        padding: 0;
        box-sizing: border-box;
    }

    button:hover {
        filter: none;
        box-shadow: 0 0 5px 0 rgba(0, 0, 0, 0.5);
        transform: scale(1.2);
        border-radius: 10%;
    }

    button#selected_matrix_cell {
        outline: 2px solid white;
        box-shadow: 0 0 5px 0 rgba(0, 0, 0, 0.5);
        z-index: 10;
        border-radius: 10%;
    }

    div {
        font-size: 0;
    }
    div.corner {
        visibility: hidden;
        cursor: auto;
    }

    div.round {
        border-radius: 50%;
        cursor: auto;
    }
}

#colorCountDisplay {
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    border: 1px solid var(--color-gray-300);

    h2 {
        font-size: 1rem;
        margin: 0;
    }

    div {
        height: 1.5rem;
        padding-left: var(--spacing-sm);
    }

    span {
        font-size: 0.75rem;
        font-weight: bold;
        line-height: 1.5rem;
        white-space: nowrap;
    }
}