:root {
    --c-text: hsl(0 0 0);
    --c-canvas-bg: hsl(0 0 100%);
    --c-button-new-node: hsl(120 100% 95%);
    --c-button-export: hsl(60 100% 95%);
    --c-button-import: hsl(220 100% 95%);
    --c-button-clear: hsl(0 100% 95%);
    --c-input: hsl(0 0 100%);
    --c-input-border: hsl(0 0 50%);
    --c-button-bg: hsl(0 0 92%);
    --c-node-bg: hsl(0 0 98%);
    --c-node-border: hsl(0 0 95%);
    --c-node-outer-body-border: hsl(0 0 85%);
    --c-node-drag-bg: hsl(0 0 95%);
    --c-node-input-bg: hsl(120 100% 85%);
    --c-node-input-bg-disabled: hsl(120 100% 95%);
    --c-node-output-bg: hsl(0 100% 85%);
    --c-node-output-bg-disabled: hsl(0 100% 95%);
    --c-remove-button: hsl(0 0 100%);
    --c-remove-button-bg: hsl(0 100% 40%);
    --c-successful-copy-bg: hsl(120 100% 70%);
    --c-json-bg: hsl(0 0 100%);
    --c-json-border: hsl(0 0 90%);
    --c-details-border: hsl(0 0 80%);
    --c-help-background: hsl(0 0 100%);

    @media (prefers-color-scheme: dark) {
        --c-text: hsl(0 0 90%);
        --c-canvas-bg: hsl(0 0 0);
        --c-button-new-node: hsl(120 100% 5%);
        --c-button-export: hsl(60 100% 10%);
        --c-button-import: hsl(220 100% 10%);
        --c-button-clear: hsl(0 100% 10%);
        --c-input: hsl(0 0 10%);
        --c-input-border: hsl(0 0 35%);
        --c-button-bg: hsl(0 0 30%);
        --c-node-bg: hsl(0 0 20%);
        --c-node-border: hsl(0 0 14%);
        --c-node-outer-body-border: hsl(0 0 12%);
        --c-node-drag-bg: hsl(0 0 14%);
        --c-node-input-bg: hsl(120 100% 22%);
        --c-node-input-bg-disabled: hsl(120 100% 10%);
        --c-node-output-bg: hsl(0, 100%, 22%);
        --c-node-output-bg-disabled: hsl(0, 100%, 10%);
        --c-remove-button-bg: hsl(0, 100%, 25%);
        --c-successful-copy-bg: hsl(120 100% 30%);
        --c-json-bg: hsl(0 0 10%);
        --c-json-border: hsl(0 0% 30%);
        --c-details-border: hsl(0 0% 25%);
        --c-help-background: hsl(0 0 0);
    }
}

body {
    margin: 0;
}

#node-wrapper {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    position: relative;
}

.node {
    font-family: Verdana, sans-serif;
    color: var(--c-text);
    position: absolute;
    background-color: var(--c-node-bg);
    border: var(--c-node-border) solid 3px;
    width: max-content;
    height: max-content;
    transform-origin: top left;

    .node-outer-body {
        display: flex;
        border: var(--c-node-outer-body-border) solid 2px;
    }
    .node-inner-body {
        margin: 12px;
    }
    .drag {
        display: flex;
        background-color: var(--c-node-drag-bg);
        cursor: grab;
        .drag-text {
            margin: 12px;
        }
    }
}

.node-io {
    position: absolute;
    font-family: monospace;
    display: none;
    border-radius: 0;
}

.node-io-active {
    display: inline;
}

.node-input {
    left: -12px;
    color: var(--c-text);
    background-color: var(--c-node-input-bg);
    &:disabled {
        background-color: var(--c-node-input-bg-disabled);
    }
}

.node-output {
    right: -12px;
    color: var(--c-text);
    background-color: var(--c-node-output-bg);
    &:disabled {
        background-color: var(--c-node-output-bg-disabled);
    }
}

#canvas {
    position: absolute;
    z-index: -1;
    background-color: var(--c-canvas-bg);
}

button, input[type='submit'], input[type='file']::file-selector-button {
    border: solid 1px black;
    border-radius: 12px;
    height: fit-content;
    padding: 4px 8px;
    color: var(--c-text);
    background-color: var(--c-button-bg);
}

.remove-button {
    color: var(--c-remove-button);
    background-color: var(--c-remove-button-bg);
    font-weight: bold;
    margin: auto 0 auto auto;
}

.copy-button {
    margin-right: .5em;
}

.successful-copy {
    background-color: var(--c-successful-copy-bg);
}

.json {
    width: 500px;
    height: 500px;
    background-color: var(--c-json-bg);
    border: solid 2px var(--c-json-border);
    white-space: pre-wrap;
    word-break: break-all;
    overflow-y: scroll;
}

details {
    border: solid 2px var(--c-details-border);
    border-radius: 8px;
    padding: 8px;
}

.export-details {
    margin: .5em 0 0 0;
}

#help-text-wrapper {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    opacity: 75%;
    z-index: 2;
    font-family: Verdana, sans-serif;
    color: var(--c-text);
}

#help-text {
    border-collapse: collapse;
    background-color: var(--c-help-background);
    & th, td {
        border: solid 1px;
        padding: 1px 6px;
    }
}

.form-div {
    margin: 1em 0;
}

.import-text {
    width: 400px;
    height: 300px;
}

.import-url {
    width: 400px
}

textarea, select, input[type='text'], input[type='url'] {
    color: var(--c-text);
    background-color: var(--c-input);
    border: solid 1px var(--c-input-border);
    border-radius: 4px;
}

option {
    color: var(--c-text);
    background-color: var(--c-input);
}

.node-result {
    max-width: 500px;
    max-height: 500px;
    overflow-y: scroll;
    word-break: break-all;
    word-wrap: anywhere;
    font-family: monospace;
    font-size: 16px;
    background-color: var(--c-json-bg);
    border: solid 2px var(--c-json-border);
}

.selection-area {
    position: absolute;
    background-color: lightblue;
    opacity: 40%;
    border: solid 1px blue;
    z-index: 1;
}

#mouse-actions-wrapper {
    display: flex;
    flex-direction: column;
    position: absolute;
    bottom: 5vh;
}

#button-toggle-buttons {
    height: 50px;
    font-size: 16px;
    cursor: pointer;
    opacity: 60%;
    transition: opacity .1s;
    width: 324px;
    &:hover {
        opacity: 100%;
    }
}

#mouse-actions {
    display: flex;
    transition: opacity .2s;

    div {
        display: flex;
        flex-direction: column-reverse;
    }

    button {
        width: 150px;
        height: 150px;
        font-size: 16px;
        cursor: pointer;
        margin: 6px;
        hyphens: auto;
        opacity: 60%;
        transition: opacity .1s;

        &:hover {
            opacity: 100%;
        }
    }
}

#button-new-node { background-color: var(--c-button-new-node); }
#button-export, #button-export-compressed { background-color: var(--c-button-export); }
#button-import { background-color: var(--c-button-import); }
#button-clear, #button-clear-all { background-color: var(--c-button-clear); }