:root {
    --bg: #f4f6f8;
    --panel: #ffffff;
    --panel-soft: #eef3f7;
    --panel-side: #eef2f6;
    --line: #c8d0d8;
    --line-soft: #d8dde3;
    --text: #222;
    --muted: #555;
    --danger: #a40000;
    --accent: #2c6bd9;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.app {
    display: grid;
    grid-template-columns: 170px 1fr;
    grid-template-rows: auto 1fr;
    height: 100vh;
}

.toolbar {
    grid-column: 1 / span 2;
    display: grid;
    grid-template-columns: minmax(320px, 1fr) 2fr;
    gap: 8px 12px;
    padding: 8px;
    background: #dfe6ee;
    border-bottom: 1px solid var(--line);
    align-items: start;
}

.toolbar-buttons select {
    min-height: 32px;
    font-size: 12px;
    padding: 4px 6px;
}

.toolbar-input-wrap {
    display: flex;
    align-items: stretch;
}

#studySelect {
    background: #fff8e8;
    border: 1px solid #d6c28a;
}

.toolbar input[type="text"] {
    width: 100%;
    min-height: 44px;
    padding: 8px 10px;
    font-size: 14px;
}

.toolbar-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 6px;
    align-items: start;
}

.toolbar-buttons button {
    min-height: 32px;
    padding: 5px 8px;
    font-size: 12px;
    line-height: 1.15;
    cursor: pointer;
    white-space: nowrap;
}

.toolbar-buttons .chatgpt-spinner {
    align-self: center;
    justify-self: start;
}

#addBtn {
    background: #2c6bd9;
    color: white;
    border: none;
}

#cmdListBtn {
    background: #e6f4ea;
    border: 1px solid #b7dfc4;
    color: #1e6f3d;
}
#focusBtn {
    background: #2fbf71;              /* stronger green */
    border: 1px solid #26a863;
    color: white;
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    position: relative;
}

#focusBtn.active {
    background: #2fbf71;
    color: white;
    border-color: #26a863;
    box-shadow: 0 0 0 2px rgba(47,191,113,0.25);
}


#focusBtn:hover {
    background: #28a864;
    transform: translateY(-1px);
}

#focusBtn.focus-active {
    background: #2fbf71;
    color: white;
}

#focusBtn:active {
    transform: translateY(0);
}

#cmdListBtn:hover {
    background: #d7efe0;
}

@media (max-width: 1200px) {
    .toolbar {
        grid-template-columns: 1fr;
    }
}

.sidebar {
    border-right: 1px solid var(--line);
    background: var(--panel-side);
    overflow: auto;
    padding: 8px;
}

.sidebar h3 {
    margin: 0 0 8px 0;
    font-size: 14px;
}

.fn {
    padding: 6px 8px;
    margin-bottom: 4px;
    background: white;
    border: 1px solid var(--line-soft);
    cursor: pointer;
    font-size: 13px;
}

.main {
    display: grid;
    grid-template-rows: 1fr minmax(260px, 38%);
    min-height: 0;
    background: var(--panel);
}

.table-section {
    min-height: 0;
    overflow: auto;
    border-bottom: 1px solid var(--line);
    background: white;
}

.result-section {
    min-height: 0;
    display: grid;
    grid-template-rows: auto 1fr auto;
    background: white;
}

.result-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border-bottom: 1px solid var(--line-soft);
    background: var(--panel-soft);
    font-size: 12px;
}

.result-toolbar-left,
.result-toolbar-right {
    display: flex;
    gap: 6px;
    align-items: center;
}

.result-toolbar button {
    padding: 5px 8px;
    font-size: 12px;
    cursor: pointer;
}

.result-host {
    position: relative;
    overflow: auto;
    background: white;
}

.result-view {
    display: none;
    width: 100%;
    height: 100%;
    min-height: 220px;
    padding: 8px;
}

.result-view.active {
    display: block;
}
.plot-canvas {
    width: 100%;
    min-height: 220px;
}

.regression-canvas,
.arima-canvas,
.table-canvas {
    width: 100%;
    min-height: 220px;
    overflow: auto;
}

.table-scroll {
    max-height: 100%;
    overflow: auto;
}

.json-canvas {
    white-space: pre-wrap;
    font-family: Consolas, monospace;
    font-size: 12px;
    background: #fafafa;
    border: 1px solid #ddd;
    padding: 8px;
    overflow: auto;
    min-height: 220px;
}

.placeholder-box {
    border: 1px dashed var(--line);
    background: #fafbfc;
    padding: 16px;
    color: var(--muted);
    min-height: 220px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

th, td {
    border: 1px solid var(--line-soft);
    padding: 6px 8px;
    text-align: left;
    vertical-align: top;
}

th {
    background: var(--panel-soft);
}

tr:hover {
    background: #f8fbff;
    cursor: pointer;
}

.status {
    font-size: 12px;
    color: var(--muted);
    padding: 6px 8px;
    border-top: 1px solid var(--line-soft);
    background: #fafafa;
}

.status-running-flash {
    animation: statusFlash 0.9s ease-out;
}

@keyframes statusFlash {
    0% {
        background: #ffef99;
        color: #000;
    }
    40% {
        background: #ffd24d;
        color: #000;
    }
    100% {
        background: #fafafa;
        color: var(--muted);
    }
}

.error {
    color: var(--danger);
}

.focus-mode .table-section {
    display: none;
}

.focus-mode .main {
    display: grid;
    grid-template-rows: minmax(0, 1fr);
}

.focus-mode .result-section {
    grid-row: 1;
    min-height: 0;
    height: 100%;
}

.focus-mode .result-host {
    min-height: 0;
    height: 100%;
    overflow: auto;
}

.focus-mode .result-view.active {
    display: block;
    height: auto;
    min-height: 0;
}

.focus-mode .plot-canvas,
.focus-mode .table-canvas,
.focus-mode .regression-canvas,
.focus-mode .arima-canvas {
    height: auto;
    min-height: 0;
}

svg {
    width: 100%;
    height: 100%;
    min-height: 220px;
    display: block;
}

.color-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 6px 8px;
    border-bottom: 1px solid var(--line-soft);
    background: #f8fafc;
}

.color-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    padding: 2px 6px;
    border: 1px solid var(--line-soft);
    background: white;
}

.color-chip input[type="color"] {
    width: 28px;
    height: 22px;
    border: none;
    background: transparent;
    padding: 0;
    cursor: pointer;
}

.panel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 10px;
    padding: 8px;
    min-height: 0;
}

.panel-cell {
    display: grid;
    grid-template-rows: auto 1fr;
    border: 1px solid var(--line-soft);
    background: white;
    min-height: 0;
}

.panel-cell h4 {
    margin: 0;
    padding: 6px 8px;
    font-size: 12px;
    border-bottom: 1px solid var(--line-soft);
    background: #f8fafc;
}

.panel-cell-body {
    min-height: 0;
    padding: 8px;
    overflow: auto;
}

.chatgpt-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.45);
}

.chatgpt-modal-content {
    background: #ffffff;
    margin: 6% auto;
    width: 720px;
    max-height: 75vh;
    border-radius: 6px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
    display: flex;
    flex-direction: column;
}

.chatgpt-modal-header {
    padding: 10px 14px;
    background: #1f3b63;
    color: white;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chatgpt-modal-header button {
    background: transparent;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
}

.chatgpt-modal-body {
    padding: 16px;
    overflow-y: auto;
    font-family: system-ui, Arial;
    font-size: 14px;
    line-height: 1.5;
}

.chatgpt-spinner {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid #cfcfcf;
    border-top: 2px solid #1f3b63;
    border-radius: 50%;
    animation: chatgptSpin 0.8s linear infinite;
    vertical-align: middle;
    margin-left: 8px;
}

.panel-grid-vertical .panel-cell {
    grid-column: 1 / -1;
}

@keyframes chatgptSpin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.chatgpt-loading {
    opacity: 0.65;
    pointer-events: none;
}

/* Snapshot mode */

.snapshot-mode .panel-header,
.snapshot-mode .top-bar,
.snapshot-mode .toolbar,
.snapshot-mode .examples-panel,
.snapshot-mode .left-panel,
.snapshot-mode .status-bar,
.snapshot-mode #topControls,
.snapshot-mode #examplesPanel {
    display: none !important;
}

.snapshot-mode html,
.snapshot-mode body {
    background: #ffffff !important;
    margin: 0 !important;
    padding: 0 !important;
}

.snapshot-mode {
    padding: 0 !important;
    margin: 0 !important;
    background: #ffffff !important;
}

.snapshot-mode .main-layout,
.snapshot-mode .content-area,
.snapshot-mode .result-section,
.snapshot-mode #resultHost {
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    box-shadow: none !important;
    background: #ffffff !important;
}

.snapshot-mode #resultHost {
    padding-right: 40px !important;
    overflow: visible !important;
    transform: scale(1.03);
    transform-origin: top left;
}

.snapshot-mode .top-container,
.snapshot-mode .main-container,
.snapshot-mode .header-container {
    margin-top: 0 !important;
    padding-top: 0 !important;
    border: none !important;
}

.snapshot-mode {
    font-smooth: always;
    -webkit-font-smoothing: antialiased;
}

/* Snapshot compact */

.snapshot-compact .panel-header,
.snapshot-compact .top-bar,
.snapshot-compact .toolbar,
.snapshot-compact .examples-panel,
.snapshot-compact .left-panel,
.snapshot-compact .status-bar {
    display: none !important;
}

.snapshot-compact .arima-table,
.snapshot-compact .beta-table,
.snapshot-compact .results-table {
    display: none !important;
}

.snapshot-compact {
    background: #ffffff !important;
    margin: 0 !important;
    padding: 0 !important;
}

.snapshot-compact #resultHost {
    padding: 10px 20px !important;
}

.snapshot-compact .chart-panel {
    width: 33% !important;
    display: inline-block !important;
    vertical-align: top;
}

.chart-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(520px, 1fr));
    gap: 12px;
    align-items: start;
}

.chart-cell {
    min-width: 0;
}

.chart-cell-body {
    height: 360px;
    min-height: 360px;
    overflow: hidden;
}

.chart-cell-body .plot-canvas,
.chart-cell-body svg {
    width: 100%;
    height: 100%;
    min-height: 340px;
}

/* Solvable layout */

.solvable-shell {
    display: grid;
    grid-template-rows: auto 1fr;
    gap: 8px;
    padding: 8px;
    min-height: 220px;
}

.solvable-tabs {
    display: flex;
    gap: 6px;
    border-bottom: 1px solid var(--line-soft);
    padding-bottom: 6px;
}

.solvable-tab-btn {
    padding: 6px 10px;
    border: 1px solid var(--line-soft);
    background: #f8fafc;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
}

.solvable-tab-btn.active {
    background: white;
    border-bottom: 2px solid var(--accent);
    color: var(--accent);
}

.solvable-tab-pane {
    display: none;
    min-height: 220px;
}

.solvable-tab-pane.active {
    display: block;
}

.solvable-results-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.solvable-results-grid .panel-grid {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.solve-compact {
    white-space: pre-wrap;
    font-family: Consolas, monospace;
    font-size: 12px;
    line-height: 1.35;
    background: #fafafa;
    border: 1px solid #ddd;
    padding: 8px;
}

.solvable-dashboard {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: 10px;
    padding: 8px;
}

.card-chart {
    grid-column: 1;
    grid-row: 1;
}

.card-positions {
    grid-column: 2;
    grid-row: 1;
}

.card-text {
    grid-column: 1 / -1;
    grid-row: 2;
}

.card-chart .panel-cell-body {
    height: 320px;
}

.card-text .panel-cell-body {
    height: auto;
}

@media (max-width: 1200px) {
    .solvable-dashboard {
        grid-template-columns: 1fr;
    }

    .card-chart,
    .card-positions,
    .card-text {
        grid-column: auto;
        grid-row: auto;
    }
}

.details-toggle {
    margin-top: 8px;
}

.details-toggle summary {
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
}

.lp-wide-table {
    overflow: auto;
}

.lp-wide-table table {
    min-width: max-content;
}

.panel-grid-vertical {
    grid-template-columns: 1fr !important;
}

.panel-cell.graph-cell {
    grid-column: 1 / -1;
}


/* Command list */

.command-list-panel {
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    padding: 16px;
    overflow-y: auto;
    background: #ffffff;
    color: #222;
    font-family: Arial, sans-serif;
}

.command-list-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    border-bottom: 2px solid #ddd;
    padding-bottom: 8px;
}

.command-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
    align-items: start;
}

.command-group-card {
    background: #fafafa;
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 14px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.command-group-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.command-group-items {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.command-item {
    border-top: 1px solid #e5e5e5;
    padding-top: 10px;
}

.command-item:first-child {
    border-top: none;
    padding-top: 0;
}

.command-name {
    font-weight: 700;
    font-size: 15px;
    margin-bottom: 4px;
}

.command-description {
    font-size: 13px;
    color: #555;
    margin-bottom: 4px;
    line-height: 1.35;
}

.command-example {
    font-family: Consolas, Monaco, monospace;
    font-size: 13px;
    background: #f3f3f3;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 6px 8px;
    white-space: pre-wrap;
    word-break: break-word;
    color: #7a1f1f;
}
.fred-release {
    color: var(--accent);
    cursor: pointer;
    text-decoration: underline;
}


/* ---- split from operator(52).html ---- */

#scriptModal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,.4);
    display: none;
    align-items: center;
    justify-content: center;
}
.editable-object-matrix {
    padding: 6px;
    background: #f7f9fb;
}

.editable-object-matrix table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
    font-size: 13px;
}

.editable-object-matrix th,
.editable-object-matrix td {
    border: 1px solid #cfd6de;
    padding: 8px 10px;
    vertical-align: middle;
    font-variant-numeric: tabular-nums;
}

.editable-object-matrix th {
    background: #e9eef5;
    font-weight: 600;
    color: #1f2d3d;
}

.editable-object-matrix td {
    background: #fafbfc;
    color: #222;
}

.editable-object-matrix tr:hover td {
    background: #f4f8fc;
}

.editable-object-matrix td:first-child {
    font-weight: 500;
    color: #2c3a4a;
    white-space: nowrap;
}

.editable-object-matrix input {
    width: 140px;
    max-width: 100%;
    padding: 3px 6px;
    border: 1px solid #bcc7d3;
    background: #ffffff;
    color: #111;
    font-size: 13px;
    font-family: inherit;
    text-align: right;
}

.editable-object-matrix input:focus {
    outline: none;
    border-color: #2c6bd9;
    box-shadow: 0 0 0 2px rgba(44, 107, 217, 0.15);
}

.editable-object-matrix input[data-type="string"] {
    text-align: left;
}

.editable-object-matrix input[data-type="date"] {
    text-align: left;
}

.editable-object-matrix button {
    padding: 4px 10px;
    border: 1px solid #2c6bd9;
    background: #2c6bd9;
    color: #ffffff;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}

.editable-object-matrix button:hover {
    background: #1f57b5;
    border-color: #1f57b5;
}

.editable-object-matrix button:active {
    transform: translateY(1px);
}

.editable-object-matrix .section-break td {
    border-top: 2px solid #aeb8c3;
}

.editable-object-matrix .output-cell {
    text-align: right;
}

.editable-object-matrix .label-cell {
    background: #f1f4f7;
}

.editable-object-matrix .button-row td {
    background: #f6f8fb;
}

.object-matrix-panel {
    padding: 10px;
    background: #f7f9fb;
    overflow: auto;
}

.object-matrix-cell[data-cell-type="histograph"],
.object-matrix-cell[data-cell-type="cumulativeHistogram"] {
    background: #c0c0c0;
    overflow: visible;
}

.object-matrix-cell[data-cell-type="histograph"] svg,
.object-matrix-cell[data-cell-type="cumulativeHistogram"] svg {
    width: 100%;
    height: auto;
    background: #ffffff;
}


.object-matrix-grid {
    display: grid;
    gap: 10px;
    align-items: start;
    grid-auto-flow: row dense;
}

.object-matrix-cell {
    border: 1px solid #cfd6de;
    border-radius: 8px;
    background: #ffffff;
    color: #222;
    padding: 8px 10px;
    min-width: 0;
    min-height: 32px;
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.object-matrix-cell.header-cell {
    font-weight: 700;
}

.object-matrix-cell.label-cell {
    font-weight: 600;
}

.object-matrix-cell.value-cell {
    font-variant-numeric: tabular-nums;
}

.object-matrix-cell.button-cell {
    padding: 0;
    border: none;
    background: transparent;
    box-shadow: none;
}

.object-matrix-cell button {
    width: 100%;
    min-height: 34px;
    border: 1px solid #2c6bd9;
    border-radius: 6px;
    background: #2c6bd9;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}

.object-matrix-cell input,
.object-matrix-cell select,
.object-matrix-cell textarea {
    width: 100%;
    max-width: 100%;
    padding: 6px 8px;
    border: 1px solid #bcc7d3;
    border-radius: 4px;
    background: #fff;
    color: inherit;
    font: inherit;
    box-sizing: border-box;
}

.object-matrix-cell input[type="number"] {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.object-matrix-cell input[type="date"] {
    text-align: left;
}

.object-matrix-cell.readonly {
    display: flex;
    align-items: center;
}

.object-matrix-graph-host {
    width: 100%;
    height: 100%;
    min-height: 240px;
}

.object-matrix-cell .plot-canvas,
.object-matrix-cell .plot-canvas svg {
    width: 100%;
    height: 100%;
    min-height: 240px;
}

.object-matrix-table-wrap {
    overflow: auto;
}
.color-table-cell {
    padding: 6px;
}

.object-matrix-cell.html-cell {
    padding: 0;
    overflow: auto;
}

.object-matrix-html-wrap {
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    padding: 10px 12px;
    overflow: auto;
    background: #ffffff;
    color: #222;
    font-family: Arial, sans-serif;
    font-size: 12px;
    line-height: 1.4;
}

.object-matrix-html-wrap table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.object-matrix-html-wrap td,
.object-matrix-html-wrap th {
    border: 1px solid #d8dde3;
    padding: 4px 6px;
    vertical-align: top;
}

.object-matrix-html-wrap b {
    color: #1f3f5b;
}
.object-matrix-cell a {
    color: #2c6bd9;
    text-decoration: underline;
    cursor: pointer;
}

.object-matrix-cell a:hover {
    text-decoration-thickness: 2px;
}


.color-table-cell .object-matrix-table-wrap {
    width: 100%;
    max-width: 100%;
    overflow: auto;
}

.color-table-cell table {
    width: auto;
    min-width: 100%;
    border-collapse: collapse;
}


/* ---- split from operator(52).html ---- */

.multi-chart-grid {
    display: grid;
    gap: 10px;
    width: 100%;
    height: 100%;
    align-items: start;
}

.multi-chart-item {
    display: grid;
    grid-template-rows: auto 1fr;
    border: 1px solid #cfd6de;
    border-radius: 6px;
    background: #ffffff;
    overflow: hidden;
    min-width: 0;
}

.multi-chart-title {
    padding: 6px 8px;
    font-size: 12px;
    font-weight: 600;
    border-bottom: 1px solid #d8dde3;
    background: #f8fafc;
    color: #1f2d3d;
}

.multi-chart-body {
    min-height: 320px;
    height: 100%;
    padding: 6px;
}

.multi-chart-body .plot-canvas,
.multi-chart-body .plot-canvas svg {
    width: 100%;
    height: 100%;
    min-height: 300px;
}


/* ---- split from operator(52).html ---- */

.command-list-panel {
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    padding: 16px;
    overflow-y: auto;
    background: #ffffff;
    color: #222;
    font-family: Arial, sans-serif;
}

.command-list-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    border-bottom: 2px solid #ddd;
    padding-bottom: 8px;
}

.command-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
    align-items: start;
}

.command-group-card {
    background: #fafafa;
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 14px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.command-group-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.command-group-items {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.command-item {
    border-top: 1px solid #e5e5e5;
    padding-top: 10px;
}

.command-item:first-child {
    border-top: none;
    padding-top: 0;
}

.command-name {
    font-weight: 700;
    font-size: 15px;
    margin-bottom: 4px;
}

.command-description {
    font-size: 13px;
    color: #555;
    margin-bottom: 4px;
    line-height: 1.35;
}

.command-example {
    font-family: Consolas, Monaco, monospace;
    font-size: 13px;
    background: #f3f3f3;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 6px 8px;
    white-space: pre-wrap;
    word-break: break-word;
    color: #7a1f1f;
}

.chart-export-pdf-button {
    margin: 6px;
    padding: 6px 12px;
    border: 1px solid #999;
    border-radius: 4px;
    background: #f7f7f7;
    cursor: pointer;
    font-size: 12px;
}

.chart-export-pdf-button:hover {
    background: #e9e9e9;
}


/* ---- split from operator(52).html ---- */

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #ffffff;
}
#popupHost {
    width: 100vw;
    height: 100vh;
    box-sizing: border-box;
    padding: 8px;
}

/* =========================================================
   Application layout / split-window cleanup
   Single authoritative layout block. Keep this near the end.
   ========================================================= */

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

body.dual-window {
    height: 100%;
    min-height: 100vh;
    overflow: auto;
    background: #ffffff;
}

#siteHeader {
    grid-column: 1 / -1;
}

.app {
    display: grid;
    grid-template-columns: 170px minmax(0, 1fr);
    grid-template-rows: auto minmax(0, 1fr);
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

.toolbar {
    grid-column: 1 / -1;
    grid-row: 1;
}

.sidebar {
    grid-column: 1;
    grid-row: 2;
    min-height: 0;
    overflow: auto;
}

.main {
    grid-column: 2;
    grid-row: 2;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
}

.table-section {
    min-height: 0;
    overflow: auto;
}

.result-section {
    min-height: 0;
    overflow: hidden;
}

.result-host {
    min-height: 0;
    overflow: auto;
}

.result-view {
    min-width: 0;
    min-height: 0;
}

.result-view.active {
    min-height: 0;
}

.toolbar-buttons button,
.toolbar-buttons select {
    width: 100%;
}

.fn {
    display: block;
    width: 100%;
    text-align: left;
}

/* =========================================================
   Panel rendering stability
   These classes are created by renderPanelGrid/renderPanelGridIntoHost.
   ========================================================= */

.panel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 10px;
    padding: 8px;
    align-items: start;
    min-width: 0;
    min-height: 0;
}

.panel-grid-vertical {
    grid-template-columns: minmax(0, 1fr) !important;
}

.panel-grid-vertical .panel-cell,
.panel-cell.graph-cell {
    grid-column: 1 / -1;
}

.panel-cell {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    min-width: 0;
    min-height: 360px;
    overflow: hidden;
    border: 1px solid var(--line-soft);
    background: #ffffff;
}

.panel-cell h4 {
    margin: 0;
    padding: 6px 8px;
    font-size: 12px;
    line-height: 1.25;
    border-bottom: 1px solid var(--line-soft);
    background: #f8fafc;
}

.panel-cell-body {
    min-width: 0;
    min-height: 320px;
    height: 100%;
    padding: 8px;
    overflow: auto;
}

.panel-cell-body > .plot-canvas,
.panel-cell-body > .regression-canvas,
.panel-cell-body > .arima-canvas,
.panel-cell-body > .table-canvas {
    width: 100%;
    height: 100%;
    min-height: 320px;
}

.panel-cell-body svg,
.panel-cell-body canvas {
    max-width: 100%;
}

/* Charts should fill their assigned host, not the whole page. */
.plot-canvas,
.table-canvas,
.regression-canvas,
.arima-canvas {
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 220px;
}

svg {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 220px;
    overflow: visible;
}

.chart-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(520px, 1fr));
    gap: 12px;
    align-items: start;
}

.chart-cell {
    min-width: 0;
}

.chart-cell-body {
    height: 360px;
    min-height: 360px;
    overflow: hidden;
}

.chart-cell-body .plot-canvas,
.chart-cell-body svg {
    width: 100%;
    height: 100%;
    min-height: 340px;
}

/* =========================================================
   Dual window
   Only draw here when JS sends a selected row/result.
   ========================================================= */

.dual-toolbar {
    padding: 8px 12px;
    background: #dfe6ee;
    border-bottom: 1px solid var(--line);
    font-weight: 700;
}

.dual-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
    padding: 12px;
    min-width: 0;
}

.dual-card {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    min-width: 0;
    min-height: calc(100vh - 70px);
    overflow: hidden;
    border: 1px solid var(--line-soft);
    background: #ffffff;
}

.dual-title {
    padding: 6px 8px;
    font-size: 12px;
    font-weight: 700;
    border-bottom: 1px solid var(--line-soft);
    background: #f8fafc;
}

.dual-body {
    min-width: 0;
    min-height: 380px;
    height: calc(100vh - 120px);
    padding: 8px;
    overflow: auto;
}

.single-dual-card {
    grid-column: 1 / -1;
    min-height: calc(100vh - 70px);
}

.single-dual-card .dual-body {
    height: calc(100vh - 120px);
}

.dual-card .plot-canvas,
.dual-card svg,
.dual-card canvas {
    width: 100%;
    height: 100%;
}

.multi-chart-item,
.object-matrix-cell {
    min-width: 0;
}

@media (max-width: 900px) {
    .app {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto minmax(0, 1fr);
    }

    .toolbar {
        grid-row: 1;
    }

    .sidebar {
        grid-column: 1;
        grid-row: 2;
        max-height: 180px;
        border-right: none;
        border-bottom: 1px solid var(--line);
    }

    .main {
        grid-column: 1;
        grid-row: 3;
    }

    .panel-grid,
    .chart-gallery {
        grid-template-columns: minmax(0, 1fr);
    }
}