:root {
    --panel-gap: 12px;
    --sidebar-width: 220px;
    --params-width: 300px;
    --canvas-bg: #f6f2e8;
    --ink: #1b1b1b;
    --accent: #0b4ea2;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: #d7d1c4;
    color: var(--ink);
}

.app {
    display: grid;
    grid-template-columns: var(--params-width) auto;
    height: 100vh;
    gap: var(--panel-gap);
    padding: var(--panel-gap);
}

.sidebar {
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.sidebar .window-body {
    overflow: auto;
    min-height: 0;
}

.main {
    display: flex;
    flex-direction: column;
    gap: var(--panel-gap);
    min-height: 0;
    width: max-content;
}

.preview-window,
.matter-window {
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.tool-stack {
    display: grid;
    gap: 6px;
}

.node-tools {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid #b9b3a6;
    display: grid;
    gap: 6px;
}

.node-tools-title {
    font-weight: 700;
}

.hint {
    margin-top: 10px;
    font-size: 11px;
    line-height: 1.4;
}

.canvas-panel {
    background: #ffffff;
    border: 0;
    outline: 2px groove #b9b3a6;
    width: auto;
    height: auto;
    min-height: 0;
}

.preview-body {
    display: grid;
    gap: 12px;
    grid-auto-flow: column;
    grid-auto-columns: max-content;
    padding: 8px;
}

.preview-body fieldset {
    margin: 0;
}

.preview-body.matter-hidden {
    grid-auto-flow: row;
    grid-auto-columns: max-content;
}

.preview-fieldset {
    min-width: 0;
    width: max-content;
}

.preview-window .canvas-panel,
.matter-window .canvas-panel {
    flex: 1;
    min-height: 0;
}

.preview-window .canvas-panel {
    min-height: 0;
}

.matter-window .canvas-panel {
    min-height: 0;
}

.params-block {
    display: grid;
    gap: 8px;
    border: 2px groove #b9b3a6;
    padding: 8px;
    background: #ede6d8;
}

.params-title {
    font-weight: 700;
}

.export-window .window-body {
    display: grid;
    gap: 10px;
}

.param-row {
    display: grid;
    grid-template-columns: 110px 1fr;
    align-items: center;
    gap: 8px;
}

.param-row.param-row-range {
    grid-template-columns: 110px 1fr 70px;
}

.param-row input[type="number"] {
    width: 100%;
}

.param-row input[type="range"] {
    width: 100%;
}

.param-row .param-value {
    text-align: right;
    padding-right: 4px;
}

.advanced-panel {
    border: 2px groove #b9b3a6;
    padding: 6px;
    background: #f3eee2;
    display: grid;
    gap: 8px;
}

.manual-body {
    max-width: 520px;
}

.manual-actions {
    margin-top: 12px;
    display: flex;
    justify-content: flex-end;
}

#export-output {
    width: 100%;
    min-height: 110px;
    resize: vertical;
}

#export-code-output {
    width: 100%;
    min-height: 140px;
    resize: vertical;
}

.tool-button.is-active {
    box-shadow: inset -1px -1px #fff, inset 1px 1px #0a0a0a, inset -2px -2px #dfdfdf, inset 2px 2px grey;
    text-shadow: 1px 1px #222;
    color: transparent;
}

@media (max-width: 1100px) {
    .app {
        grid-template-columns: 1fr;
        height: auto;
    }

    .main {
        grid-template-rows: auto;
    }
}