/*! EduGeo complete browser styles */
/*
    JSXGraph 1.12.2

    Copyright 2008-2025
        Matthias Ehmann,
        Michael Gerhaeuser,
        Carsten Miller,
        Bianca Valentin,
        Andreas Walter,
        Alfred Wassermann,
        Peter Wilfahrt

    This file is part of JSXGraph.

    JSXGraph is free software dual licensed under the GNU LGPL or MIT License.

    You can redistribute it and/or modify it under the terms of the

      * GNU Lesser General Public License as published by
        the Free Software Foundation, either version 3 of the License, or
        (at your option) any later version
      OR
      * MIT License: https://github.com/jsxgraph/jsxgraph/blob/master/LICENSE.MIT

    JSXGraph is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License and
    the MIT License along with JSXGraph. If not, see <https://www.gnu.org/licenses/>
    and <https://opensource.org/licenses/MIT/>.
 */

.jxgbox {
    /* for IE 7 */
    position: relative;
    overflow: hidden;
    background-color: #fff;
    border-style: solid;
    border-width: 1px;
    border-color: #356aa0;
    border-radius: 10px;
    -webkit-border-radius: 10px;
    margin: 0;
    -ms-touch-action: none;
    /* "touch-action: none;" is set with JavaScript. */
}

.jxgbox svg text {
    cursor: default;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.JXGtext {
    font-family: Courier, monospace;
    /*
     * The default font family is now set in
     * JXG.Options.text.cssdefaultstyle = 'font-family: Arial, Helvetica, Geneva, sans-serif;'
     */

    /* "background-color: transparent;" may produce artefacts in IE. Solution: setting a color explicitly. */
    background-color: transparent;
    padding: 0;
    margin: 0;
}

.JXGinfobox {
    border-style: none;
    border-width: 0;
    border-color: black;
}

/* CSS attributes will (permantely) overwrite attributes set in JSXGraph */
.JXGimage {
    /* opacity: 1.0; */
}

.JXGimageHighlight {
    /* opacity: 0.6; */
}

/* CSS rules for the navigation bar */

.JXG_navigation {
    position: absolute;
    right: 5px;
    bottom: 5px;

    z-index: 100;

    background-color: transparent;
    padding: 2px;
    font-size: 14px;
    cursor: pointer;
}

.JXG_navigation_button {
    color: #666;
}

.JXG_navigation_button:focus-visible {
    outline: 2px solid rgba(37, 99, 235, 0.72);
    outline-offset: 2px;
}

.JXG_navigation_button_left {
}

.JXG_navigation_button_right {
}

.JXG_navigation_button_up {
}

.JXG_navigation_button_down {
}

.JXG_navigation_button_out {
}

.JXG_navigation_button_100 {
}

.JXG_navigation_button_in {
}

.JXG_navigation_button_fullscreen {
}

.JXG_navigation_button_reload {
}

.JXG_navigation_button_cleartraces {
}

.JXG_navigation_button_screenshot {
}

.JXG_navigation_button:hover {
    border-radius: 2px;
    background: rgba(184, 184, 184, 0.5);
}

.JXG_navigation_button svg {
    top: 0.2em;
    position: relative;
    padding: 0;
}

/* CSS rules for the wrapping div in fullscreen mode */

.JXG_wrap_private:-moz-full-screen {
    background-color: #ccc;
    padding: 0;
    width: 100%;
    height: 100%;
}

.JXG_wrap_private:-webkit-full-screen {
    background-color: #ccc;
    padding: 0;
    width: 100%;
    height: 100%;
}

.JXG_wrap_private:fullscreen {
    background-color: #ccc;
    padding: 0;
    width: 100%;
    height: 100%;
}

.JXG_wrap_private:-ms-fullscreen {
    background-color: #ccc;
    padding: 0;
    width: 100%;
    height: 100%;
}

/* Classes for smartlabels */

.smart-label-solid {
    padding: 1px 7px 1px 7px;
    margin: 0;
    color: white;
    border-radius: 150px;
    text-align: center;
    vertical-align: middle;
}

.smart-label-outline {
    padding: 1px 7px 1px 7px;
    margin: 0;
    border: solid 2px black;
    background-color: white;
    color: black;
    border-radius: 15px;
    text-align: center;
    vertical-align: middle;
}

.smart-label-pure {
    padding: 20px 7px 1px 7px;
    margin: 0;
    border: none;
    background-color: transparent;
    color: black;
    border-radius: 15px;
    text-align: center;
    vertical-align: middle;
}

.smart-label-line,
.smart-label-point {
    background-color: #0072b2;
    border-color: #0072b2;
}

.smart-label-point {
    margin-top: 12px;
}

.smart-label-angle {
    background-color: #e69f00;
    border-color: #e69f00;
    padding: 1px 7px 1px 7px;
}

.smart-label-polygon,
.smart-label-circle {
    background-color: #f0e442;
    color: black;
    border-color: #f0e442;
    padding: 1px 7px 1px 7px;
}

:root {
  color: #182026;
  background: #f5f7fa;
  font-family: Arial, "Microsoft YaHei", sans-serif;
  --edugeo-color-background: #eef3f8;
  --edugeo-color-surface: #ffffff;
  --edugeo-color-surface-muted: #f8fafc;
  --edugeo-color-border: #d7dee7;
  --edugeo-color-board-surround: #e8eef5;
  --edugeo-color-text: #182026;
  --edugeo-color-text-muted: #64748b;
  --edugeo-color-primary: #2563eb;
  --edugeo-radius-panel: 10px;
  --edugeo-radius-control: 8px;
  --edugeo-shadow-panel: 0 10px 28px rgba(15, 23, 42, 0.08);
  --edugeo-space-1: 4px;
  --edugeo-space-2: 8px;
  --edugeo-space-3: 12px;
  --edugeo-space-4: 16px;
  --edugeo-touch-size: 40px;
  --edugeo-app-bg: var(--edugeo-color-background);
  --edugeo-panel-bg: var(--edugeo-color-surface);
  --edugeo-panel-muted: var(--edugeo-color-surface-muted);
  --edugeo-border: var(--edugeo-color-border);
  --edugeo-board-surround: var(--edugeo-color-board-surround);
  --edugeo-text: var(--edugeo-color-text);
  --edugeo-muted: var(--edugeo-color-text-muted);
  --edugeo-accent: var(--edugeo-color-primary);
  --edugeo-control-height: var(--edugeo-touch-size);
}

/* Step 111: keep geometry labels crisp while their screen-only offsets are adjusted. */
.jxgbox svg text,
.jxgbox .JXGtext {
  text-rendering: geometricPrecision;
  -webkit-font-smoothing: antialiased;
}

.jxgbox.is-freehand-tool-active,
.edu-geo-board.is-freehand-tool-active {
  cursor: crosshair;
}

@media (pointer: coarse) {
  #prop-point-type,
  #prop-label-position,
  #prop-label-offset-x,
  #prop-label-offset-y {
    min-height: 44px;
  }
}

/* Step 78D: right property inspector grouping and responsive drawer. */
.property-inspector-groups {
  background: transparent;
  border: 0;
  display: block;
  margin: 0;
  padding: 0;
}

.property-inspector-group {
  background: #fff;
  border: 0;
  border-bottom: 1px solid #e2e8f0;
  margin: 0;
}

.property-inspector-group[hidden] {
  display: none;
}

.property-inspector-group > summary {
  align-items: center;
  color: #1e293b;
  cursor: pointer;
  display: flex;
  font-size: 14px;
  font-weight: 700;
  justify-content: space-between;
  list-style: none;
  min-height: 44px;
  padding: 10px 12px;
  user-select: none;
}

.property-inspector-group > summary::-webkit-details-marker {
  display: none;
}

.property-inspector-group > summary::after {
  color: #64748b;
  content: '›';
  font-size: 18px;
  line-height: 1;
  transform: rotate(0deg);
  transition: transform 120ms ease;
}

.property-inspector-group[open] > summary::after {
  transform: rotate(90deg);
}

.property-inspector-group > summary:hover,
.property-inspector-group > summary:focus-visible {
  background: #f8fafc;
  color: #1d4ed8;
  outline: 0;
}

.property-inspector-body {
  padding: 0 12px 12px;
}

.property-inspector-body > .property-section {
  background: transparent;
  border: 0;
  margin: 0;
  padding: 6px 0;
}

.property-inspector-body > .property-section > h3:first-child {
  display: none;
}

.property-inspector-auxiliary > .property-inspector-body {
  padding-inline: 8px;
}

.property-inspector-auxiliary .ai-workbench,
.property-inspector-auxiliary .cas-test-section {
  border: 0;
  margin: 0;
}

.property-panel-mobile-toggle,
.property-panel-backdrop {
  display: none;
}

@media (max-width: 1100px) {
  .editor-app .editor-workspace,
  .edu-geo-sdk-editor .editor-workspace {
    position: relative;
  }

  .editor-app .editor-workspace,
  .edu-geo-sdk-editor .editor-workspace {
    grid-template-columns: 280px minmax(0, 1fr);
  }

  .editor-app.is-left-collapsed .editor-workspace,
  .edu-geo-sdk-editor.is-left-collapsed .editor-workspace {
    grid-template-columns: 0 minmax(0, 1fr);
  }

  .editor-app .property-panel,
  .edu-geo-sdk-editor .property-panel {
    display: none;
  }

  .property-panel-mobile-toggle {
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid #cbd5e1;
    border-radius: 9px;
    box-shadow: 0 8px 24px rgba(30, 64, 175, 0.14);
    color: #1d4ed8;
    display: block;
    font-weight: 700;
    min-height: 44px;
    min-width: 54px;
    padding: 7px 10px;
    position: absolute;
    right: 10px;
    top: 10px;
    z-index: 26;
  }

  .editor-app.is-property-drawer-open .property-panel-mobile-toggle,
  .edu-geo-sdk-editor.is-property-drawer-open .property-panel-mobile-toggle,
  .editor-app.is-property-drawer-open .object-panel-mobile-toggle,
  .edu-geo-sdk-editor.is-property-drawer-open .object-panel-mobile-toggle,
  .editor-app.is-object-drawer-open .property-panel-mobile-toggle,
  .edu-geo-sdk-editor.is-object-drawer-open .property-panel-mobile-toggle {
    display: none;
  }

  .editor-app.is-property-drawer-open .property-panel,
  .edu-geo-sdk-editor.is-property-drawer-open .property-panel,
  .editor-app .property-panel.is-mobile-open,
  .edu-geo-sdk-editor .property-panel.is-mobile-open {
    border-left: 1px solid #cbd5e1;
    box-shadow: -18px 0 40px rgba(15, 23, 42, 0.2);
    display: flex;
    inset: 0 0 0 auto;
    max-width: 90vw;
    position: absolute;
    visibility: visible;
    width: 340px;
    z-index: 32;
  }

  .editor-app.is-property-drawer-open .property-panel-backdrop,
  .edu-geo-sdk-editor.is-property-drawer-open .property-panel-backdrop {
    background: rgba(15, 23, 42, 0.2);
    border: 0;
    display: block;
    inset: 0;
    padding: 0;
    position: absolute;
    z-index: 31;
  }

  .property-panel.is-mobile-open .panel-toggle {
    min-height: 44px;
    min-width: 44px;
  }
}

@media (max-width: 900px) {
  .editor-app .editor-workspace,
  .edu-geo-sdk-editor .editor-workspace,
  .editor-app.is-left-collapsed .editor-workspace,
  .edu-geo-sdk-editor.is-left-collapsed .editor-workspace {
    grid-template-columns: minmax(0, 1fr);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
}

.editor-body {
  background: var(--edugeo-app-bg);
  color: var(--edugeo-text);
  overflow: hidden;
}

.editor-app {
  display: grid;
  grid-template-rows: 40px auto minmax(0, 1fr) auto 30px;
  height: 100vh;
  min-width: 980px;
}

.presentation-controls {
  display: none;
}

.editor-app.is-presentation-mode {
  background: #101820;
  grid-template-rows: 58px minmax(0, 1fr) 32px;
  min-width: 0;
}

.editor-app.is-presentation-mode .editor-menubar,
.editor-app.is-presentation-mode .geometry-toolbar,
.editor-app.is-presentation-mode .object-panel,
.editor-app.is-presentation-mode .property-panel,
.editor-app.is-presentation-mode .command-bar,
.editor-app.is-presentation-mode .object-panel-mobile-toggle,
.editor-app.is-presentation-mode .property-panel-mobile-toggle,
.editor-app.is-presentation-mode .object-panel-backdrop,
.editor-app.is-presentation-mode .property-panel-backdrop,
.editor-app.is-presentation-mode .interaction-mode-toggle {
  display: none;
}

.editor-app.is-presentation-mode .presentation-controls {
  align-items: center;
  background: #ffffff;
  border-bottom: 1px solid #d7dee7;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  min-width: 0;
  padding: 7px 12px;
  grid-row: 1;
}

.presentation-controls strong {
  font-size: 16px;
}

.presentation-actions {
  align-items: center;
  display: flex;
  gap: 6px;
  min-width: 0;
  overflow-x: auto;
  padding: 1px 2px;
  scrollbar-width: thin;
}

.presentation-actions[hidden] {
  display: none;
}

.presentation-actions button {
  flex: 0 0 auto;
  min-height: 38px;
  padding: 0 11px;
}

.presentation-step-state {
  color: #475569;
  display: grid;
  flex: 0 0 auto;
  font-size: 12px;
  gap: 1px;
  line-height: 1.2;
  max-width: 190px;
  min-width: 112px;
}

.presentation-step-state > span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.presentation-step-state small {
  color: #64748b;
}

.editor-app.is-presentation-mode .construction-player-panel {
  display: none !important;
}

.construction-player-panel {
  background: linear-gradient(135deg, #0f172a, #1e3a8a);
  border-top: 3px solid #60a5fa;
  bottom: 28px;
  box-shadow: 0 -10px 30px rgba(15, 23, 42, 0.28);
  color: #fff;
  display: grid;
  gap: 10px;
  left: 0;
  padding: 12px 18px 14px;
  position: fixed;
  right: 0;
  z-index: 1500;
}

.construction-player-panel[hidden] {
  display: none;
}

.construction-player-heading,
.construction-player-controls {
  align-items: center;
  display: flex;
  gap: 10px;
}

.construction-player-heading strong {
  flex: 1 1 auto;
  font-size: 17px;
  min-width: 0;
}

.construction-player-mode {
  background: #fbbf24;
  border-radius: 999px;
  color: #422006;
  font-size: 12px;
  font-weight: 800;
  padding: 5px 10px;
}

.construction-player-controls button,
.construction-player-controls select {
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 8px;
  min-height: 44px;
  padding: 8px 13px;
}

.construction-player-controls button {
  background: #fff;
  color: #172554;
  cursor: pointer;
  font-weight: 750;
}

.construction-player-controls button:disabled {
  cursor: default;
  opacity: 0.42;
}

.construction-player-controls label {
  align-items: center;
  display: flex;
  font-size: 12px;
  gap: 6px;
}

.construction-player-step-picker {
  flex: 1 1 260px;
  min-width: 180px;
}

.construction-player-step-picker select {
  max-width: 420px;
  min-width: 0;
  width: 100%;
}

.construction-player-controls .construction-player-exit {
  background: #fef2f2;
  color: #991b1b;
}

.construction-player-progress {
  accent-color: #fbbf24;
  cursor: pointer;
  height: 24px;
  width: 100%;
}

.custom-tool-list {
  display: contents;
}

.custom-tool-empty {
  color: #94a3b8;
  font-size: 12px;
  padding: 8px 10px;
}

.custom-tool-button {
  border-color: #a7f3d0 !important;
  color: #065f46 !important;
}

.custom-tool-editor {
  align-items: center;
  background: rgba(15, 23, 42, 0.55);
  display: flex;
  inset: 0;
  justify-content: center;
  padding: 24px;
  position: fixed;
  z-index: 1700;
}

.custom-tool-editor[hidden] {
  display: none;
}

.custom-tool-editor-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.35);
  display: grid;
  gap: 14px;
  max-height: min(760px, 90vh);
  max-width: 760px;
  overflow: auto;
  padding: 22px;
  width: min(760px, 94vw);
}

.custom-tool-editor-card header,
.custom-tool-editor-card footer {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.custom-tool-editor-card h2 {
  margin: 2px 0 0;
}

.custom-tool-editor-card > label {
  display: grid;
  font-size: 13px;
  font-weight: 700;
  gap: 6px;
}

.custom-tool-editor-card input[type="text"] {
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font: inherit;
  min-height: 44px;
  padding: 9px 11px;
}

.custom-tool-choice-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.custom-tool-choice-grid fieldset {
  border: 1px solid #dbe4ef;
  border-radius: 10px;
  margin: 0;
  min-width: 0;
  padding: 12px;
}

.custom-tool-choice-list {
  display: grid;
  gap: 7px;
  max-height: 260px;
  overflow: auto;
}

.custom-tool-choice-list label {
  align-items: center;
  background: #f8fafc;
  border-radius: 7px;
  display: flex;
  gap: 8px;
  min-height: 40px;
  padding: 6px 9px;
}

.custom-tool-editor-card button {
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  min-height: 44px;
  padding: 8px 14px;
}

.custom-tool-editor-card .custom-tool-primary {
  background: #0f766e;
  border-color: #0f766e;
  color: #fff;
}

.demo-component-library {
  align-items: center;
  background: rgba(15, 23, 42, 0.5);
  display: flex;
  inset: 0;
  justify-content: center;
  padding: 24px;
  position: fixed;
  z-index: 1680;
}

.demo-component-library[hidden] {
  display: none;
}

.demo-library-dialog {
  background: #f8fafc;
  border: 1px solid #dbeafe;
  border-radius: 18px;
  box-shadow: 0 28px 80px rgba(15, 23, 42, 0.32);
  display: grid;
  gap: 18px;
  max-height: 90vh;
  max-width: 1040px;
  overflow: auto;
  padding: 24px;
  width: min(1040px, 95vw);
}

.demo-library-dialog header,
.demo-library-dialog footer {
  align-items: flex-start;
  display: flex;
  gap: 16px;
  justify-content: space-between;
}

.demo-library-dialog h2 {
  color: #0f172a;
  font-size: 24px;
  margin: 3px 0 4px;
}

.demo-library-dialog p {
  color: #64748b;
  margin: 0;
}

.demo-library-eyebrow {
  color: #2563eb;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.demo-library-dialog button {
  border: 1px solid #cbd5e1;
  border-radius: 9px;
  min-height: 44px;
  padding: 8px 14px;
}

.demo-library-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.demo-library-card {
  align-content: start;
  background: #fff;
  border: 1px solid #dbe4ef !important;
  color: #334155;
  display: grid;
  gap: 7px;
  min-height: 158px;
  padding: 15px !important;
  text-align: left;
}

.demo-library-card:hover {
  border-color: #60a5fa !important;
  box-shadow: 0 8px 22px rgba(37, 99, 235, 0.12);
  transform: translateY(-1px);
}

.demo-library-card strong {
  color: #0f172a;
  font-size: 16px;
}

.demo-library-card small {
  color: #64748b;
  line-height: 1.55;
}

.demo-library-card em,
.demo-library-category {
  font-size: 11px;
  font-style: normal;
  font-weight: 750;
}

.demo-library-category {
  color: #2563eb;
}

.demo-library-card em {
  align-self: end;
  color: #15803d;
}

.board-frame {
  position: relative;
}

.demo-courseware-player {
  align-items: center;
  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid #bfdbfe;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.16);
  display: flex;
  gap: 14px;
  justify-content: space-between;
  left: 50%;
  max-width: calc(100% - 28px);
  padding: 8px 10px 8px 14px;
  position: absolute;
  top: 12px;
  transform: translateX(-50%);
  width: min(720px, calc(100% - 28px));
  z-index: 26;
}

.demo-courseware-player[hidden] {
  display: none;
}

.demo-courseware-player > div:first-child {
  display: grid;
  min-width: 0;
}

.demo-courseware-player span {
  color: #2563eb;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .08em;
}

.demo-courseware-player strong {
  color: #0f172a;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.demo-courseware-player-actions {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
}

.demo-courseware-player button {
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 9px;
  color: #1e3a8a;
  min-height: 38px;
  padding: 6px 10px;
}

.demo-courseware-player button:hover,
.demo-courseware-player button:focus-visible {
  background: #eff6ff;
  border-color: #60a5fa;
}

.demo-library-dialog footer {
  align-items: center;
}

.demo-library-dialog output {
  color: #1d4ed8;
  font-weight: 700;
}

.about-edugeo-dialog {
  max-width: 680px;
  width: min(680px, 95vw);
}

.about-edugeo-meta {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.about-edugeo-meta div {
  background: #fff;
  border: 1px solid #dbeafe;
  border-radius: 12px;
  display: grid;
  gap: 4px;
  padding: 12px 14px;
}

.about-edugeo-meta span,
.about-edugeo-technology,
.about-edugeo-dialog footer small {
  color: #64748b;
  font-size: 12px;
}

.about-edugeo-meta strong {
  color: #0f172a;
}

.about-edugeo-features,
.about-edugeo-technology {
  line-height: 1.7;
}

.status-version {
  color: #64748b;
  font-size: 11px;
  margin-left: 10px;
}

@media (max-width: 900px) {
  .demo-library-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .demo-courseware-player {
    align-items: stretch;
    flex-direction: column;
    gap: 6px;
  }

  .demo-courseware-player-actions {
    overflow-x: auto;
  }
}

@media (max-height: 520px) and (orientation: landscape) {
  .demo-courseware-player {
    align-items: center;
    flex-direction: row;
    gap: 8px;
    padding: 6px 8px 6px 10px;
    top: 6px;
  }

  .demo-courseware-player > div:first-child {
    max-width: 190px;
  }

  .demo-courseware-player-actions {
    flex: 1 1 auto;
    justify-content: flex-end;
    min-width: 0;
    overflow-x: auto;
  }

  .demo-courseware-player button {
    min-height: 32px;
    padding: 4px 8px;
    white-space: nowrap;
  }

  .edugeo-control[data-template-key="rotation-fourth-draft"] {
    min-height: 32px;
    min-width: 0;
  }

  .edugeo-control[data-template-key="rotation-fourth-draft"] .edugeo-control-input {
    font-size: 13px;
    gap: 5px;
    min-height: 32px;
    padding: 3px 8px;
  }

  .edugeo-control[data-template-key="rotation-fourth-draft"] button.edugeo-control-input {
    min-width: 104px;
  }

  .edugeo-control[data-template-key="rotation-fourth-draft"] input[type="checkbox"] {
    height: 20px;
    width: 20px;
  }

  .edugeo-control[data-template-key="rotation-fourth-draft"][data-teaching-role="centerAButton"] {
    left: 14px !important;
    top: 43px !important;
  }

  .edugeo-control[data-template-key="rotation-fourth-draft"][data-teaching-role="centerBButton"] {
    left: 14px !important;
    top: 77px !important;
  }

  .edugeo-control[data-template-key="rotation-fourth-draft"][data-teaching-role="centerCButton"] {
    left: 14px !important;
    top: 111px !important;
  }

  .edugeo-control[data-template-key="rotation-fourth-draft"][data-teaching-role="direction"] {
    left: 14px !important;
    top: 145px !important;
  }

  .edugeo-control[data-template-key="rotation-fourth-draft"][data-teaching-role="resetButton"] {
    left: 132px !important;
    top: 145px !important;
  }
}

/* Step 78B: compact top navigation and common tools. Only the top region is scoped. */
.editor-menubar[data-top-menu="true"] {
  gap: 14px;
  min-width: 0;
  padding-inline: 12px 8px;
  position: relative;
  z-index: 100;
}

.editor-menubar[data-top-menu="true"] .editor-brand {
  flex: 0 0 auto;
}

.editor-menubar[data-top-menu="true"] .menu-cluster {
  flex: 1 1 auto;
  justify-content: flex-end;
  min-width: 0;
}

.editor-menubar[data-top-menu="true"] .menu-item > [data-menu-trigger] {
  border-radius: 6px;
  color: #334155;
  font-size: 13px;
  padding-inline: 9px;
}

.editor-menubar[data-top-menu="true"] .menu-item.is-open > [data-menu-trigger] {
  background: #eaf2ff;
  color: #1d4ed8;
}

.editor-menubar[data-top-menu="true"] .menu-popover {
  display: none;
  max-height: min(72vh, 620px);
  overflow: auto;
  top: 38px;
}

.editor-menubar[data-top-menu="true"] .menu-item.is-open > .menu-popover {
  display: grid;
}

.editor-menubar[data-top-menu="true"] .menu-popover.is-wide {
  grid-template-columns: repeat(2, minmax(210px, 1fr));
  width: min(620px, calc(100vw - 24px));
}

.editor-menubar[data-top-menu="true"] .menu-control-grid {
  display: grid;
  gap: 3px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 0 4px 5px;
}

.editor-menubar[data-top-menu="true"] .menu-control-grid button,
.editor-menubar[data-top-menu="true"] .menu-control-grid a,
.editor-menubar[data-top-menu="true"] .menu-popover > a {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 6px;
  color: #334155;
  display: flex;
  font-size: 12px;
  min-height: 34px;
  padding: 7px 9px;
  text-align: left;
  text-decoration: none;
}

.editor-menubar[data-top-menu="true"] .menu-control-grid button:hover,
.editor-menubar[data-top-menu="true"] .menu-control-grid button:focus-visible,
.editor-menubar[data-top-menu="true"] .menu-control-grid a:hover,
.editor-menubar[data-top-menu="true"] .menu-control-grid a:focus-visible,
.editor-menubar[data-top-menu="true"] .menu-popover > a:hover,
.editor-menubar[data-top-menu="true"] .menu-popover > a:focus-visible {
  background: #eff6ff;
  color: #1d4ed8;
  outline: 0;
}

.editor-menubar[data-top-menu="true"] .menu-profile-switcher {
  align-items: center;
  border-block: 1px solid #e2e8f0;
  display: grid;
  gap: 5px 8px;
  grid-column: 1 / -1;
  grid-template-columns: auto minmax(120px, 1fr);
  margin: 3px 5px;
  padding: 8px 6px;
}

.editor-menubar[data-top-menu="true"] .menu-profile-switcher small {
  color: #64748b;
  grid-column: 1 / -1;
}

.geometry-toolbar[data-common-toolbar="true"] {
  align-items: center;
  min-height: 56px;
  overflow: hidden;
  padding: 6px 10px;
}

.geometry-toolbar[data-common-toolbar="true"] .common-tool-strip {
  align-items: center;
  display: flex;
  gap: 6px;
  min-width: max-content;
}

.geometry-toolbar[data-common-toolbar="true"] .common-tool-strip button {
  align-items: center;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 7px;
  color: #334155;
  display: inline-flex;
  flex-direction: column;
  font-size: 11px;
  gap: 1px;
  justify-content: center;
  min-height: 42px;
  min-width: 50px;
  padding: 4px 8px;
}

.geometry-toolbar[data-common-toolbar="true"] .common-tool-strip button:hover,
.geometry-toolbar[data-common-toolbar="true"] .common-tool-strip button:focus-visible {
  background: #eff6ff;
  border-color: #93c5fd;
  color: #1d4ed8;
  outline: 0;
}

.geometry-toolbar[data-common-toolbar="true"] .common-tool-strip button.is-active {
  background: #2563eb;
  border-color: #2563eb;
  color: #ffffff;
}

.geometry-toolbar[data-common-toolbar="true"] .common-tool-strip button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.geometry-toolbar[data-common-toolbar="true"] .tool-icon {
  font-size: 14px;
  font-weight: 800;
  line-height: 1;
}

@media (max-width: 900px) {
  .editor-app,
  .edu-geo-sdk-editor {
    max-width: 100%;
    overflow-x: hidden;
  }

  .editor-menubar[data-top-menu="true"] {
    gap: 6px;
    overflow: visible;
    padding-inline: 8px 0;
  }

  .editor-menubar[data-top-menu="true"] .editor-brand strong {
    font-size: 15px;
  }

  .editor-menubar[data-top-menu="true"] .menu-cluster {
    justify-content: flex-start;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
  }

  .editor-menubar[data-top-menu="true"] .menu-cluster::-webkit-scrollbar,
  .geometry-toolbar[data-common-toolbar="true"]::-webkit-scrollbar {
    display: none;
  }

  .editor-menubar[data-top-menu="true"] .menu-item {
    flex: 0 0 auto;
  }

  .editor-menubar[data-top-menu="true"] .menu-item.is-open > .menu-popover {
    display: grid;
    left: 6px;
    max-height: calc(100vh - 112px);
    position: fixed;
    right: 6px;
    top: 40px;
    width: auto;
  }

  .editor-menubar[data-top-menu="true"] .menu-popover.is-wide {
    grid-template-columns: minmax(0, 1fr);
  }

  .geometry-toolbar[data-common-toolbar="true"] {
    min-height: 56px;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 5px 6px;
    scrollbar-width: none;
  }

  .geometry-toolbar[data-common-toolbar="true"] .common-tool-strip button {
    min-height: 44px;
    min-width: 50px;
  }
}

@media (max-width: 560px) {
  .demo-library-grid {
    grid-template-columns: 1fr;
  }

  .about-edugeo-meta {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .custom-tool-choice-grid {
    grid-template-columns: 1fr;
  }
}

.editor-app.is-construction-playback-mode .geometry-toolbar,
.editor-app.is-construction-playback-mode .editor-menubar,
.editor-app.is-construction-playback-mode .command-bar,
.editor-app.is-construction-playback-mode .board-frame {
  pointer-events: none;
  user-select: none;
}

.editor-app.is-construction-playback-mode .geometry-toolbar,
.editor-app.is-construction-playback-mode .command-bar {
  opacity: 0.5;
}

@media (max-width: 900px) {
  .construction-player-controls {
    flex-wrap: wrap;
  }

  .construction-player-step-picker {
    flex-basis: 100%;
  }

  .construction-player-heading strong {
    font-size: 14px;
  }
}

.editor-app.is-presentation-mode .editor-workspace,
.editor-app.is-presentation-mode.is-left-collapsed .editor-workspace,
.editor-app.is-presentation-mode.is-right-collapsed .editor-workspace,
.editor-app.is-presentation-mode.is-left-collapsed.is-right-collapsed .editor-workspace {
  grid-template-columns: minmax(0, 1fr);
  grid-row: 2;
}

.editor-app.is-presentation-mode .board-center {
  background: #101820;
  padding: 14px;
}

.editor-app.is-presentation-mode .board-frame {
  min-height: 0;
}

.editor-app.is-presentation-mode .status-bar {
  font-size: 14px;
  grid-row: 3;
}

@media (max-width: 680px) {
  .editor-app.is-presentation-mode {
    grid-template-rows: 54px minmax(0, 1fr) 30px;
  }

  .editor-app.is-presentation-mode .presentation-controls {
    gap: 8px;
    padding: 5px 7px;
  }

  .presentation-controls > strong {
    font-size: 13px;
    max-width: 62px;
  }

  .presentation-step-state {
    display: none;
  }

  .presentation-actions button {
    min-height: 42px;
    padding-inline: 10px;
  }

  .editor-app.is-presentation-mode .board-center {
    padding: 6px;
  }
}

.editor-app:fullscreen,
.editor-app:-webkit-full-screen {
  height: 100vh;
  width: 100vw;
}

.editor-menubar {
  align-items: center;
  background: var(--edugeo-panel-bg);
  border-bottom: 1px solid var(--edugeo-border);
  display: flex;
  gap: 22px;
  justify-content: space-between;
  padding: 0 12px;
  z-index: 20;
}

.editor-brand {
  align-items: baseline;
  display: flex;
  gap: 10px;
  white-space: nowrap;
}

.editor-brand strong {
  font-size: 17px;
}

.editor-brand span {
  color: #64748b;
  font-size: 13px;
}

.menu-cluster {
  align-items: stretch;
  display: flex;
  height: 100%;
}

.menu-item {
  position: relative;
}

.menu-item > button {
  background: transparent;
  border: 0;
  border-radius: 0;
  height: 100%;
  padding: 0 12px;
}

.menu-item > button:hover,
.menu-item:focus-within > button,
.menu-item:hover > button {
  background: #f1f5f9;
}

.menu-popover {
  background: var(--edugeo-panel-bg);
  border: 1px solid var(--edugeo-border);
  border-radius: 8px;
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.14);
  display: none;
  min-width: 190px;
  padding: 6px;
  position: absolute;
  right: 0;
  top: 38px;
  z-index: 40;
}

.menu-item:hover .menu-popover,
.menu-item:focus-within .menu-popover {
  display: grid;
}

.menu-popover button {
  background: transparent;
  border: 0;
  border-radius: 6px;
  padding: 8px 10px;
  text-align: left;
}

.menu-popover button:hover {
  background: #eff6ff;
  color: #1d4ed8;
}

.menu-popover button.is-active {
  background: #dbeafe;
  color: #1d4ed8;
  font-weight: 700;
}

.menu-popover button.is-active::after {
  content: "✓";
  float: right;
}

.menu-section-label {
  color: var(--edugeo-muted);
  font-size: 11px;
  font-weight: 700;
  padding: 5px 10px 3px;
}

.command-help-examples {
  color: #334155;
  font-size: 12px;
  line-height: 1.65;
  min-width: 330px;
  padding: 4px 10px 8px;
}

.command-help-examples small {
  color: var(--edugeo-muted);
  display: block;
  line-height: 1.45;
  margin-top: 5px;
}

.menu-separator {
  border-top: 1px solid var(--edugeo-border);
  margin: 5px 3px;
}

.menu-popover button:disabled {
  color: #94a3b8;
  cursor: default;
}

.menu-shortcut {
  color: #94a3b8;
  float: right;
  font-size: 11px;
  margin-left: 18px;
}

.edu-geo-context-menu {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  box-shadow: 0 18px 38px rgba(15, 23, 42, 0.2);
  display: grid;
  min-width: 176px;
  padding: 5px;
  position: fixed;
  z-index: 1000;
}

.edu-geo-context-menu[hidden] {
  display: none;
}

.edu-geo-context-menu button {
  background: transparent;
  border: 0;
  border-radius: 5px;
  color: #1e293b;
  padding: 8px 10px;
  text-align: left;
  width: 100%;
}

.edu-geo-context-menu button:hover,
.edu-geo-context-menu button:focus-visible {
  background: #eff6ff;
  color: #1d4ed8;
  outline: 0;
}

.edu-geo-context-menu button:focus-visible,
.object-context-menu button:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.42);
  outline-offset: -2px;
}

.edu-geo-context-menu button.is-danger {
  color: #b42318;
}

.edu-geo-context-menu button.is-danger:hover,
.edu-geo-context-menu button.is-danger:focus-visible {
  background: #fff1f2;
  color: #be123c;
}

.edu-geo-context-separator {
  border-top: 1px solid #e2e8f0;
  margin: 4px 2px;
}

.geometry-toolbar {
  align-items: stretch;
  background: #f8fafc;
  border-bottom: 1px solid #d7dee7;
  display: flex;
  gap: 0;
  min-height: 86px;
  overflow-x: auto;
  padding: 8px 10px;
}

.toolbar-group {
  align-content: flex-start;
  border-right: 1px solid #e2e8f0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 112px;
  padding: 0 10px;
}

.toolbar-group:first-child {
  padding-left: 0;
}

.toolbar-group > summary > span {
  color: #64748b;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
}

.toolbar-group button,
.toolbar-group a {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  color: #182026;
  font-size: 13px;
  min-height: 30px;
  padding: 5px 9px;
  text-decoration: none;
}

.toolbar-group button:hover,
.toolbar-group a:hover {
  background: #eff6ff;
  border-color: #93c5fd;
  color: #1d4ed8;
}

.toolbar-group button.is-active {
  background: #2563eb;
  border-color: #2563eb;
  color: #ffffff;
}

.toolbar-group button:disabled {
  color: #94a3b8;
  cursor: not-allowed;
  opacity: 0.72;
}

.toolbar-group .danger-button {
  color: #b42318;
}

.toolbar-group .danger-button.is-active {
  background: #dc2626;
  border-color: #dc2626;
  color: #ffffff;
}

.geometry-toolbar details.toolbar-group {
  overflow: visible;
  padding: 0;
}

.toolbar-group summary {
  align-items: center;
  background: #ffffff;
  border: 1px solid #d8e1ec;
  border-radius: 7px;
  color: #334155;
  cursor: pointer;
  display: inline-flex;
  font-size: 12px;
  font-weight: 700;
  gap: 6px;
  min-height: 32px;
  padding: 6px 9px;
  user-select: none;
}

.toolbar-group summary::marker {
  color: #64748b;
}

.toolbar-group[open] summary {
  background: #eef6ff;
  border-color: #bfdbfe;
  color: #1d4ed8;
}

.toolbar-menu {
  align-items: center;
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-left: 6px;
}

.toolbar-menu button,
.toolbar-menu a {
  align-items: center;
  display: inline-flex;
  gap: 5px;
  max-width: 180px;
}

.function-analysis-tool-menu {
  position: relative;
}

.function-analysis-tool-menu > summary {
  align-items: center;
  background: #fff;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  color: #182026;
  cursor: pointer;
  display: inline-flex;
  font-size: 13px;
  min-height: 30px;
  padding: 5px 9px;
}

.function-analysis-tool-actions {
  background: #fff;
  border: 1px solid #cbd5e1;
  border-radius: 9px;
  box-shadow: 0 12px 28px rgba(15, 23, 42, .16);
  display: grid;
  gap: 5px;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  left: var(--function-analysis-menu-left, 8px);
  padding: 8px;
  position: fixed;
  top: var(--function-analysis-menu-top, 96px);
  width: min(278px, calc(100vw - 16px));
  z-index: 1300;
}

.function-analysis-tool-actions button { text-align: left; }

.function-learning-profile-switcher {
  display: grid;
  grid-template-columns: auto minmax(110px, 1fr);
  align-items: center;
  gap: 5px 8px;
  padding: 8px;
  margin-bottom: 6px;
  border: 1px solid rgba(148, 163, 184, 0.34);
  border-radius: 10px;
  background: rgba(248, 250, 252, 0.92);
}

.function-learning-profile-switcher label {
  color: #475569;
  font-size: 12px;
  font-weight: 700;
}

.function-learning-profile-switcher select {
  min-width: 0;
  min-height: 34px;
  padding: 4px 28px 4px 8px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #fff;
  color: #0f172a;
  font: inherit;
  cursor: pointer;
}

.function-learning-profile-switcher select:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.3);
  outline-offset: 1px;
  border-color: #2563eb;
}

.function-learning-profile-switcher small {
  grid-column: 1 / -1;
  color: #64748b;
  font-size: 11px;
}

@media (max-width: 600px) {
  .function-learning-profile-switcher {
    grid-template-columns: 1fr;
  }

  .function-learning-profile-switcher select {
    min-height: 42px;
  }
}

.function-analysis-summary,
.function-analysis-warnings {
  color: #475569;
  font-size: 12px;
  line-height: 1.55;
  margin-top: 8px;
}

.function-analysis-warnings:empty { display: none; }

.function-analysis-warning { margin: 4px 0; }
.function-analysis-warning.warning { color: #a16207; }
.function-analysis-warning.error { color: #b91c1c; }

.tool-icon {
  align-items: center;
  background: #f1f5f9;
  border: 1px solid #dbe4ee;
  border-radius: 5px;
  color: #0f172a;
  display: inline-flex;
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 700;
  height: 22px;
  justify-content: center;
  line-height: 1;
  min-width: 22px;
  padding: 0 4px;
}

.toolbar-menu button:hover .tool-icon,
.toolbar-menu button.is-active .tool-icon {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.4);
  color: inherit;
}

.toolbar-menu button[data-tool="image"] {
  color: #64748b;
}

.editor-workspace {
  display: grid;
  gap: 0;
  grid-template-columns: 280px minmax(0, 1fr) 320px;
  min-height: 0;
  overflow: hidden;
}

.editor-app.is-left-collapsed .editor-workspace {
  grid-template-columns: 0 minmax(0, 1fr) 320px;
}

.editor-app.is-right-collapsed .editor-workspace {
  grid-template-columns: 280px minmax(0, 1fr) 0;
}

.editor-app.is-left-collapsed.is-right-collapsed .editor-workspace {
  grid-template-columns: 0 minmax(0, 1fr) 0;
}

.object-panel,
.property-panel {
  background: var(--edugeo-panel-bg);
  border-right: 1px solid var(--edugeo-border);
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.property-panel {
  border-left: 1px solid var(--edugeo-border);
  border-right: 0;
}

.editor-app.is-left-collapsed .object-panel,
.editor-app.is-right-collapsed .property-panel {
  visibility: hidden;
}

.panel-header {
  align-items: center;
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  justify-content: space-between;
  min-height: 58px;
  padding: 10px 12px;
}

.panel-header h2 {
  font-size: 15px;
  margin: 0;
}

.panel-header p {
  color: #64748b;
  font-size: 12px;
  margin: 3px 0 0;
}

.panel-toggle {
  align-items: center;
  border-radius: 6px;
  display: inline-flex;
  height: 30px;
  justify-content: center;
  padding: 0;
  width: 30px;
}

.board-center {
  background: var(--edugeo-board-surround);
  min-height: 0;
  min-width: 0;
  overflow: hidden;
  padding: 10px;
}

.editor-app[data-theme="classroom"] {
  --edugeo-color-background: #dbe4ee;
  --edugeo-color-surface: #ffffff;
  --edugeo-color-surface-muted: #f1f5f9;
  --edugeo-color-border: #94a3b8;
  --edugeo-color-board-surround: #cbd5e1;
  --edugeo-color-text: #0f172a;
  --edugeo-color-text-muted: #334155;
  --edugeo-color-primary: #dc2626;
  grid-template-rows: 48px auto minmax(0, 1fr) auto 34px;
}

.editor-app[data-theme="classroom"] .editor-brand strong {
  font-size: 20px;
}

.editor-app[data-theme="classroom"] .toolbar-menu button,
.editor-app[data-theme="classroom"] .menu-item > button,
.editor-app[data-theme="classroom"] .property-editor {
  font-size: 15px;
}

.editor-app[data-theme="classroom"] .board-frame .edu-geo-jxg-board {
  box-shadow: 0 0 0 2px #64748b, 0 16px 30px rgba(15, 23, 42, 0.16);
}

.editor-app[data-theme="compact"] {
  --edugeo-color-background: #eef2f3;
  --edugeo-color-surface: #fbfdfc;
  --edugeo-color-surface-muted: #f1f5f4;
  --edugeo-color-border: #cbd5d1;
  --edugeo-color-board-surround: #e2e8e6;
  --edugeo-color-text: #1f2933;
  --edugeo-color-text-muted: #52616b;
  --edugeo-color-primary: #0f766e;
  grid-template-rows: 34px auto minmax(0, 1fr) auto 26px;
}

.editor-app[data-theme="compact"] .editor-workspace {
  grid-template-columns: 240px minmax(0, 1fr) 280px;
}

.editor-app[data-theme="compact"].is-left-collapsed .editor-workspace {
  grid-template-columns: 0 minmax(0, 1fr) 280px;
}

.editor-app[data-theme="compact"].is-right-collapsed .editor-workspace {
  grid-template-columns: 240px minmax(0, 1fr) 0;
}

.editor-app[data-theme="compact"] .panel-header {
  min-height: 46px;
  padding: 7px 9px;
}

.editor-app[data-theme="compact"] .property-section {
  gap: 7px;
  padding: 9px;
}

.editor-app[data-theme="compact"] .toolbar-menu button {
  min-height: 30px;
  padding: 4px 7px;
}

.board-frame {
  height: 100%;
  min-height: 0;
  overflow: hidden;
  width: 100%;
}

.board-frame .editor-board,
.board-frame .edu-geo-jxg-board {
  height: 100%;
  width: 100%;
}

.property-panel {
  overflow-y: auto;
}

.property-empty {
  align-items: center;
  color: #64748b;
  display: flex;
  flex-direction: column;
  gap: 7px;
  justify-content: center;
  min-height: 180px;
  padding: 24px;
  text-align: center;
}

.property-empty strong {
  color: #334155;
  font-size: 14px;
}

.property-empty span {
  font-size: 12px;
  line-height: 1.55;
}

.property-editor[hidden],
.property-empty[hidden],
.property-section[hidden],
.property-kind[hidden] {
  display: none;
}

.property-section {
  border-bottom: 1px solid #e2e8f0;
  display: grid;
  gap: 10px;
  padding: 12px;
}

.property-section h3 {
  font-size: 14px;
  margin: 0;
}

.property-section label {
  color: #475569;
  display: grid;
  font-size: 13px;
  gap: 5px;
}

.property-section input,
.property-section textarea,
.property-section select {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  color: #1e293b;
  font: inherit;
  min-width: 0;
  padding: 7px 8px;
  width: 100%;
}

.property-section input:focus,
.property-section textarea:focus,
.property-section select:focus {
  border-color: #60a5fa;
  outline: 2px solid rgba(37, 99, 235, 0.12);
}

.property-section input:disabled {
  background: #f1f5f9;
  color: #64748b;
}

.property-section input[type="color"] {
  cursor: pointer;
  min-height: 36px;
  padding: 3px;
}

.inline-control,
.property-switch {
  align-items: center;
  display: flex !important;
  gap: 8px !important;
}

.inline-control input,
.property-switch input {
  accent-color: #2563eb;
  flex: 0 0 auto;
  width: auto;
}

.property-switch {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  min-height: 36px;
  padding: 7px 9px;
}

.property-readout {
  display: grid;
  gap: 8px;
  margin: 0;
}

.property-readout div {
  display: grid;
  gap: 6px;
  grid-template-columns: 56px minmax(0, 1fr);
}

.property-readout dt {
  color: #64748b;
  font-size: 12px;
}

.property-readout dd {
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.property-readout .property-definition {
  font-family: Consolas, "Microsoft YaHei", monospace;
  font-size: 11px;
}

.property-color-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.property-color-grid label {
  min-width: 0;
}

.property-field-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.property-kind {
  display: grid;
  gap: 10px;
}

.property-note {
  background: #f8fafc;
  border-left: 3px solid #94a3b8;
  color: #64748b;
  font-size: 11px;
  line-height: 1.5;
  margin: 0;
  padding: 7px 9px;
}

.checkbox-binding-editor {
  display: grid;
  gap: 8px;
  padding-top: 4px;
}

.checkbox-binding-editor[hidden] {
  display: none;
}

.checkbox-binding-editor > strong {
  color: #334155;
  font-size: 12px;
}

.checkbox-binding-list {
  display: grid;
  gap: 6px;
}

.checkbox-binding-item {
  align-items: center;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  display: flex;
  font-size: 11px;
  gap: 8px;
  justify-content: space-between;
  padding: 6px 8px;
}

.checkbox-binding-item span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.checkbox-binding-item button {
  flex: 0 0 auto;
  min-height: 28px;
  padding: 4px 8px;
}

.button-script-actions {
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.button-script-actions button {
  min-height: 34px;
  padding: 6px 8px;
}

#prop-button-script-preview {
  background: #f8fafc;
  color: #475569;
  font-family: Consolas, "Microsoft YaHei", monospace;
  font-size: 11px;
}

.project-section textarea {
  min-height: 128px;
  resize: vertical;
}

.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ai-workbench {
  gap: 0;
  padding: 0;
}

.ai-workbench-tabs {
  background: #f1f5f9;
  border-bottom: 1px solid #dbe3ec;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 4px;
}

.ai-workbench-tabs button {
  background: transparent;
  border: 0;
  border-radius: 5px;
  color: #64748b;
  font-size: 12px;
  font-weight: 700;
  min-height: 32px;
  padding: 6px 8px;
}

.ai-workbench-tabs button:hover {
  background: rgba(255, 255, 255, 0.7);
  color: #334155;
}

.ai-workbench-tabs button[aria-selected="true"] {
  background: #ffffff;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.12);
  color: #1d4ed8;
}

.ai-workbench-panel {
  display: grid;
  gap: 10px;
  padding: 12px;
}

.ai-workbench-panel[hidden] {
  display: none;
}

.ai-workbench-panel-heading h3,
.ai-workbench-panel-heading p {
  margin: 0;
}

.ai-workbench-panel-heading p {
  color: #64748b;
  font-size: 11px;
  line-height: 1.5;
  margin-top: 3px;
}

.property-actions {
  display: flex;
  margin-top: 8px;
}

.property-actions button {
  width: 100%;
}

/* Function-analysis exposes ten actions.  Keep them inside the existing
 * property sidebar instead of allowing a flex row to widen the panel. */
.property-analysis {
  min-width: 0;
}

.property-analysis .property-actions {
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.property-analysis .property-actions button {
  min-width: 0;
  overflow-wrap: anywhere;
}

.cas-test-heading {
  align-items: center;
  display: flex;
  gap: 10px;
  justify-content: space-between;
}

.cas-test-heading h3 {
  margin-bottom: 2px;
}

.cas-test-heading small {
  color: #64748b;
  display: block;
  font-size: 11px;
  font-weight: 500;
}

.cas-test-heading [data-cas-status] {
  background: #e2e8f0;
  border-radius: 999px;
  color: #475569;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 7px;
}

.cas-test-heading [data-cas-status][data-state="loading"] {
  background: #fef3c7;
  color: #92400e;
}

.cas-test-heading [data-cas-status][data-state="ready"] {
  background: #dcfce7;
  color: #166534;
}

.cas-test-heading [data-cas-status][data-state="error"] {
  background: #ffe4e6;
  color: #be123c;
}

.cas-test-controls {
  display: grid;
  gap: 8px;
  grid-template-columns: minmax(0, 1fr) 72px minmax(92px, 0.75fr);
}

.cas-workspace-toolbar {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 10px 0 8px;
}

.cas-workspace-empty {
  background: #f8fafc;
  border: 1px dashed #cbd5e1;
  border-radius: 8px;
  color: #64748b;
  font-size: 12px;
  margin: 0 0 8px;
  padding: 10px;
}

.cas-workspace-rows {
  display: grid;
  gap: 8px;
  margin-bottom: 10px;
  max-height: min(36vh, 340px);
  overflow: auto;
  overscroll-behavior: contain;
}

.cas-workspace-row {
  background: #fff;
  border: 1px solid #dbeafe;
  border-radius: 9px;
  display: grid;
  gap: 5px;
  padding: 8px;
}

.cas-workspace-row.is-active,
.cas-workspace-row.is-selected {
  background: #eff6ff;
  border-color: #60a5fa;
}

.cas-workspace-row[data-state="error"],
.cas-workspace-row[data-state="dependencyMissing"] {
  background: #fff7ed;
  border-color: #fdba74;
}

.cas-row-heading {
  align-items: center;
  display: flex;
  gap: 8px;
  justify-content: space-between;
}

.cas-row-heading button {
  background: transparent;
  border: 0;
  color: #1d4ed8;
  font-size: 12px;
  font-weight: 700;
  min-height: 28px;
  padding: 2px 0;
  text-align: left;
}

.cas-row-heading span {
  color: #64748b;
  font-size: 11px;
  white-space: nowrap;
}

.cas-row-input,
.cas-row-output {
  display: block;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 12px;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.cas-row-input {
  color: #334155;
}

.cas-row-output {
  color: #0f766e;
}

.cas-row-actions {
  display: flex;
  gap: 5px;
  overflow-x: auto;
  padding-bottom: 1px;
}

.cas-row-actions button {
  flex: 0 0 auto;
  font-size: 11px;
  min-height: 30px;
  padding: 4px 7px;
}

.cas-test-actions {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cas-test-result {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  color: #1e293b;
  display: block;
  font-family: Consolas, "Microsoft YaHei", monospace;
  font-size: 12px;
  line-height: 1.55;
  min-height: 42px;
  max-height: 126px;
  overflow: auto;
  overflow-wrap: anywhere;
  padding: 9px;
  user-select: text;
  white-space: pre-wrap;
}

.cas-test-result.is-long {
  box-shadow: inset 0 -14px 12px -16px rgba(15, 23, 42, 0.7);
}

.cas-test-result.is-error {
  background: #fff1f2;
  border-color: #fecdd3;
  color: #be123c;
}

@media (max-width: 520px) {
  .cas-test-controls {
    grid-template-columns: minmax(0, 1fr) minmax(88px, 0.8fr);
  }

  .cas-test-controls label:last-child {
    grid-column: 1 / -1;
  }

  .cas-workspace-rows {
    max-height: 28vh;
  }

  .cas-test-actions {
    grid-template-columns: minmax(0, 1fr);
  }
}

.command-bar {
  align-items: center;
  background: #ffffff;
  border-top: 1px solid #d7dee7;
  display: grid;
  gap: 8px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  min-height: 44px;
  padding: 7px 10px 6px;
  position: relative;
  z-index: 25;
}

.command-input-shell {
  min-width: 0;
  position: relative;
}

.command-bar label {
  color: #475569;
  font-size: 13px;
  font-weight: 700;
}

.command-bar input {
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font: inherit;
  height: 32px;
  padding: 0 10px;
  width: 100%;
}

.command-suggestions {
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid #cbd5e1;
  border-radius: 9px;
  bottom: calc(100% + 6px);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.16);
  display: grid;
  gap: 2px;
  left: 0;
  max-height: min(280px, 42vh);
  overflow: auto;
  padding: 5px;
  position: absolute;
  right: 0;
  z-index: 36;
}

.command-suggestions[hidden] {
  display: none;
}

.command-suggestion {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 6px;
  color: #1e293b;
  display: flex;
  font: inherit;
  justify-content: space-between;
  min-height: 34px;
  padding: 6px 9px;
  text-align: left;
  width: 100%;
}

.command-suggestion:hover,
.command-suggestion:focus-visible {
  background: #eff6ff;
  color: #1d4ed8;
  outline: 0;
}

.command-suggestion small {
  color: #64748b;
  font-size: 11px;
  margin-left: 12px;
}

.command-bar input:focus {
  border-color: #60a5fa;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
  outline: 0;
}

.command-bar button {
  background: linear-gradient(180deg, #f8fbff 0%, #eef5ff 100%);
  border: 1px solid #bfd3ef;
  border-radius: 6px;
  color: #1d4ed8;
  font-weight: 700;
  height: 32px;
  padding: 0 14px;
}

.command-bar button:hover,
.command-bar button:focus-visible {
  border-color: #60a5fa;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
  outline: 0;
}

.command-bar button:disabled {
  cursor: wait;
  opacity: 0.58;
}

.command-feedback {
  color: #64748b;
  font-size: 12px;
  grid-column: 1 / -1;
  line-height: 1.35;
  margin: 0;
  min-height: 16px;
  overflow-wrap: anywhere;
  padding-left: 1px;
}

.command-feedback:empty {
  display: none;
}

.command-feedback[data-state="success"] {
  color: #047857;
}

.command-feedback[data-state="error"] {
  color: #b42318;
}

.status-bar {
  align-items: center;
  background: #182026;
  color: #dbeafe;
  display: flex;
  font-size: 13px;
  gap: 18px;
  justify-content: space-between;
  padding: 0 12px;
}

.status-bar span:last-child {
  color: #cbd5e1;
}

.editor-shell {
  display: grid;
  gap: 14px;
  margin: 0 auto;
  padding: 18px;
  width: min(1280px, 100%);
}

.editor-header {
  align-items: center;
  display: flex;
  gap: 16px;
  justify-content: space-between;
}

.editor-header h1 {
  font-size: 26px;
  margin: 0 0 4px;
}

.editor-header p {
  color: #52616f;
  margin: 0;
}

.editor-status {
  background: #eef6ff;
  border: 1px solid #c8ddff;
  border-radius: 8px;
  color: #1d4f91;
  font-size: 14px;
  line-height: 1.45;
  max-width: 420px;
  padding: 10px 12px;
}

.editor-toolbar {
  align-items: stretch;
  background: #ffffff;
  border: 1px solid #d7dee7;
  border-radius: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 10px;
}

.editor-tool-group {
  align-items: center;
  border-right: 1px solid #e6ebf1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-right: 12px;
}

.editor-tool-group:last-child {
  border-right: 0;
  padding-right: 0;
}

.editor-tool-group span {
  color: #697888;
  font-size: 13px;
  font-weight: 700;
}

.editor-toolbar button.is-active {
  background: #2563eb;
  border-color: #2563eb;
  color: #ffffff;
}

.editor-toolbar .danger-button {
  color: #b42318;
}

.editor-toolbar .danger-button.is-active {
  background: #dc2626;
  border-color: #dc2626;
  color: #ffffff;
}

.editor-layout {
  align-items: stretch;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr) 300px;
}

.editor-board-panel,
.editor-side-panel,
.editor-json-panel {
  background: #ffffff;
  border: 1px solid #d7dee7;
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(24, 32, 38, 0.06);
}

.editor-board-panel {
  overflow: hidden;
}

.editor-board {
  width: 100%;
}

.editor-side-panel {
  display: flex;
  flex-direction: column;
  min-height: 560px;
  overflow: hidden;
}

.editor-side-panel h2,
.editor-json-panel h2 {
  font-size: 16px;
  margin: 0;
}

.editor-side-panel h2 {
  border-bottom: 1px solid #e6ebf1;
  padding: 12px;
}

.object-list {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  padding: 8px 8px 18px;
}

.construction-history-panel {
  border-top: 1px solid #d7dee7;
  flex: 0 0 auto;
  max-height: 238px;
  overflow: hidden;
}

.construction-history-panel > summary {
  align-items: center;
  background: #f8fafc;
  color: #334155;
  cursor: pointer;
  display: flex;
  font-size: 12px;
  font-weight: 700;
  justify-content: space-between;
  min-height: 34px;
  padding: 7px 10px;
  user-select: none;
}

.construction-history-panel > summary::marker {
  color: #64748b;
}

#construction-history-count {
  align-items: center;
  background: #e2e8f0;
  border-radius: 999px;
  color: #475569;
  display: inline-flex;
  font-size: 10px;
  height: 18px;
  justify-content: center;
  min-width: 18px;
  padding: 0 5px;
}

.construction-history-list {
  display: grid;
  gap: 2px;
  max-height: 202px;
  overflow-y: auto;
  padding: 5px;
}

.construction-history-empty {
  color: #94a3b8;
  font-size: 11px;
  margin: 12px 6px;
  text-align: center;
}

.construction-history-item {
  align-items: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 5px;
  color: #334155;
  display: grid;
  gap: 7px;
  grid-template-columns: 24px minmax(0, 1fr);
  padding: 5px 6px;
  text-align: left;
  width: 100%;
}

.construction-history-item:hover {
  background: #eff6ff;
  border-color: #bfdbfe;
}

.construction-step-number {
  align-items: center;
  background: #e2e8f0;
  border-radius: 4px;
  color: #475569;
  display: inline-flex;
  font-size: 10px;
  height: 22px;
  justify-content: center;
  width: 22px;
}

.construction-step-content {
  display: grid;
  min-width: 0;
}

.construction-step-title {
  font-size: 11px;
  font-weight: 700;
}

.construction-step-definition {
  color: #64748b;
  font-family: Consolas, monospace;
  font-size: 9px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.object-list-empty {
  align-items: center;
  color: #697888;
  display: flex;
  flex-direction: column;
  gap: 5px;
  justify-content: center;
  min-height: 160px;
  padding: 20px;
  text-align: center;
}

.object-list-empty strong {
  color: #475569;
  font-size: 14px;
}

.object-list-empty span {
  font-size: 12px;
  line-height: 1.5;
}

.object-group + .object-group {
  margin-top: 8px;
}

.object-group-heading {
  align-items: center;
  color: #64748b;
  display: flex;
  font-size: 11px;
  font-weight: 700;
  justify-content: space-between;
  min-height: 26px;
  padding: 4px 6px;
}

.object-group-count {
  align-items: center;
  background: #eef2f7;
  border-radius: 999px;
  color: #64748b;
  display: inline-flex;
  font-size: 10px;
  height: 18px;
  justify-content: center;
  min-width: 18px;
  padding: 0 5px;
}

.object-group-items {
  display: grid;
  gap: 2px;
}

.object-list-item {
  align-items: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 5px;
  color: #1e293b;
  cursor: default;
  display: grid;
  gap: 7px;
  grid-template-columns: 24px minmax(0, 1fr) auto;
  min-height: 48px;
  padding: 5px 6px;
  text-align: left;
  width: 100%;
}

.object-list-item:hover {
  background: #f8fafc;
  border-color: #e2e8f0;
}

.object-list-item:focus-visible {
  border-color: #60a5fa;
  outline: 2px solid rgba(37, 99, 235, 0.16);
}

.object-list-item.is-selected {
  background: #eff6ff;
  border-color: #93c5fd;
  box-shadow: inset 3px 0 0 #2563eb;
}

.object-list-item.has-dependency-error {
  background: #fffaf0;
  border-color: #fcd34d;
}

.object-visibility {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 4px;
  color: #2563eb;
  display: inline-flex;
  font-size: 15px;
  height: 24px;
  justify-content: center;
  padding: 0;
  width: 24px;
}

.object-visibility:hover {
  background: #dbeafe;
}

.object-visibility.is-hidden {
  color: #94a3b8;
}

.object-item-content {
  min-width: 0;
}

.object-item-headline {
  align-items: baseline;
  display: flex;
  gap: 6px;
  min-width: 0;
}

.object-name {
  color: #0f172a;
  cursor: text;
  font-size: 13px;
  font-weight: 700;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.object-type {
  color: #64748b;
  flex: 0 0 auto;
  font-size: 10px;
}

.object-definition {
  color: #64748b;
  font-family: Consolas, "Microsoft YaHei", monospace;
  font-size: 10px;
  line-height: 1.45;
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.object-lock-state {
  color: #9a6700;
  font-size: 10px;
  min-width: 20px;
  text-align: right;
}

.object-lock-state.is-dependency-error {
  color: #b45309;
  font-weight: 700;
  min-width: 48px;
}

.object-name-input {
  border: 1px solid #60a5fa;
  border-radius: 4px;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  height: 25px;
  min-width: 0;
  outline: 2px solid rgba(37, 99, 235, 0.13);
  padding: 2px 5px;
  width: 100%;
}

.object-context-menu {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.18);
  display: grid;
  min-width: 148px;
  padding: 5px;
  position: fixed;
  z-index: 100;
}

.object-context-menu[hidden] {
  display: none;
}

.object-context-menu button {
  background: transparent;
  border: 0;
  border-radius: 4px;
  color: #1e293b;
  font-size: 13px;
  padding: 8px 10px;
  text-align: left;
}

.object-context-menu button:hover,
.object-context-menu button:focus-visible {
  background: #eff6ff;
  color: #1d4ed8;
  outline: 0;
}

.object-context-menu button[data-object-action="delete"] {
  color: #b42318;
}

[data-object-multiselect-toggle][aria-pressed="true"] {
  border-color: #2563eb;
  background: #eff6ff;
  color: #1d4ed8;
  font-weight: 700;
}

@media (max-width: 820px), (pointer: coarse) {
  .edu-geo-context-menu,
  .object-context-menu {
    max-height: min(70vh, 520px);
    max-width: calc(100vw - 16px);
    overflow-y: auto;
    z-index: 1200;
  }

  .edu-geo-context-menu button,
  .object-context-menu button {
    min-height: 44px;
    padding: 10px 12px;
  }
}

.edu-geo-text-selected,
[data-edugeo-canvas-selection="selected"] {
  background: transparent;
  color: #b45309;
  font-weight: 600;
  outline: 0;
  text-shadow: 0 0 7px rgba(245, 158, 11, 0.35);
}

.edu-geo-text-pending,
[data-edugeo-canvas-selection="pending"] {
  background: transparent;
  color: #0369a1;
  outline: 0;
  text-shadow: 0 0 7px rgba(56, 189, 248, 0.35);
}

.editor-json-panel {
  display: grid;
  gap: 10px;
  padding: 12px;
}

.editor-json-header {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
}

.editor-json-header p {
  color: #697888;
  font-size: 14px;
  margin: 4px 0 0;
}

.editor-json-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.editor-json-panel textarea {
  border: 1px solid #ccd5df;
  border-radius: 6px;
  font-family: Consolas, monospace;
  min-height: 180px;
  padding: 12px;
  resize: vertical;
  width: 100%;
}

.project-message {
  border-radius: 6px;
  color: #52616f;
  font-size: 14px;
  line-height: 1.55;
  min-height: 22px;
  padding: 8px 10px;
  white-space: pre-wrap;
}

.project-message.is-error {
  background: #fff1f2;
  border: 1px solid #fecdd3;
  color: #be123c;
}

.project-message.is-success {
  background: #ecfdf3;
  border: 1px solid #bbf7d0;
  color: #166534;
}

.project-workflow-dialog {
  align-items: center;
  background: rgba(15, 23, 42, 0.28);
  display: flex;
  inset: 0;
  justify-content: center;
  padding: 20px;
  position: fixed;
  z-index: 1200;
}

.project-workflow-dialog[hidden] { display: none; }

.project-workflow-card {
  background: #fff;
  border: 1px solid #dbeafe;
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.18);
  color: #0f172a;
  max-width: 460px;
  padding: 20px;
  width: min(100%, 460px);
}

.project-workflow-card h2 { font-size: 20px; margin: 0; }
.project-workflow-card p { color: #475569; line-height: 1.65; margin: 14px 0; }
.project-workflow-card label { color: #334155; display: grid; font-weight: 700; gap: 7px; }
.project-workflow-card input {
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  box-sizing: border-box;
  font: inherit;
  min-height: 44px;
  padding: 9px 11px;
  width: 100%;
}
.project-workflow-card small { color: #64748b; font-weight: 400; }
.project-workflow-card footer {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}
.project-workflow-card button {
  background: #fff;
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  color: #1e40af;
  min-height: 44px;
  padding: 9px 16px;
}
.project-workflow-card button.primary { background: #2563eb; border-color: #2563eb; color: #fff; }
.project-workflow-card button.danger { background: #dc2626; border-color: #dc2626; }

@media (max-width: 520px) {
  .project-workflow-dialog { padding: 12px; }
  .project-workflow-card { border-radius: 14px; padding: 16px; }
  .project-workflow-card footer button { flex: 1; }
}

.example-shell {
  width: min(920px, calc(100vw - 32px));
  margin: 28px auto;
}

.example-header {
  margin-bottom: 14px;
}

.example-header h1 {
  font-size: 28px;
  margin: 0 0 4px;
}

.example-header p {
  color: #52616f;
  margin: 0;
}

.example-board,
.edu-geo-jxg-board {
  background: #ffffff;
  border: 1px solid #d7dee7;
  border-radius: 8px;
  box-sizing: border-box;
  box-shadow: 0 10px 24px rgba(24, 32, 38, 0.08);
  max-width: 100%;
  min-height: 1px;
  min-width: 1px;
  overflow: hidden;
}

.edu-geo-jxg-board > svg {
  display: block;
}

button {
  border: 1px solid #ccd5df;
  border-radius: 6px;
  background: #ffffff;
  color: #182026;
  cursor: pointer;
  font: inherit;
  padding: 8px 14px;
}

button:hover {
  border-color: #8aa0b8;
}

.demo-shell {
  width: min(1040px, calc(100vw - 32px));
  margin: 28px auto;
}

.demo-header {
  align-items: center;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  margin-bottom: 14px;
}

.demo-header h1 {
  font-size: 28px;
  margin: 0 0 4px;
}

.demo-header p {
  color: #52616f;
  margin: 0;
}

.demo-status {
  background: #eaf2ff;
  border: 1px solid #c9dcff;
  border-radius: 6px;
  color: #2457a6;
  font-size: 14px;
  font-weight: 700;
  min-width: 136px;
  padding: 8px 12px;
  text-align: center;
}

.demo-toolbar {
  align-items: stretch;
  background: #ffffff;
  border: 1px solid #d7dee7;
  border-radius: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
  padding: 10px;
}

.tool-group {
  align-items: center;
  border-right: 1px solid #e6ebf1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-right: 12px;
}

.tool-group:last-child {
  border-right: 0;
  padding-right: 0;
}

.tool-group span {
  color: #697888;
  font-size: 13px;
  font-weight: 700;
  margin-right: 2px;
}

.tool-button {
  min-width: 64px;
}

.tool-button.is-active {
  background: #2f6fed;
  border-color: #2f6fed;
  color: #ffffff;
}

.tool-button-danger {
  color: #b42318;
}

.tool-button-danger.is-active {
  background: #d92d20;
  border-color: #d92d20;
  color: #ffffff;
}

.demo-examples {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.demo-examples button {
  background: #f8fafc;
}

.demo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.demo-board {
  width: 100%;
}

.demo-tip {
  color: #52616f;
  font-size: 14px;
  line-height: 1.6;
  margin: 0 0 10px;
}

.demo-json-panel {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.demo-json-header {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
}

.demo-json-panel label {
  color: #52616f;
  font-size: 14px;
}

.demo-json-panel textarea {
  border: 1px solid #ccd5df;
  border-radius: 6px;
  font-family: Consolas, monospace;
  min-height: 210px;
  padding: 12px;
  resize: vertical;
  width: 100%;
}

.edu-geo-board {
  background: #ffffff;
  border: 1px solid #d7dee7;
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(24, 32, 38, 0.08);
  overflow: hidden;
  user-select: none;
}

.edu-geo-jxg-board {
  position: relative;
}

.edugeo-control-layer {
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  position: absolute;
  z-index: 20;
}

.edugeo-control {
  align-items: stretch;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid #cbd5e1;
  border-radius: 9px;
  box-shadow: 0 3px 10px rgba(15, 23, 42, 0.14);
  display: flex;
  min-height: 44px;
  min-width: 96px;
  pointer-events: auto;
  position: absolute;
  touch-action: manipulation;
  transform: translateY(-50%);
}

.edugeo-control.is-selected {
  border-color: #f59e0b;
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.28), 0 3px 10px rgba(15, 23, 42, 0.14);
}

.edugeo-control-drag-handle {
  align-items: center;
  background: #f1f5f9;
  border: 0;
  border-right: 1px solid #cbd5e1;
  border-radius: 8px 0 0 8px;
  color: #64748b;
  cursor: grab;
  display: flex;
  font-size: 15px;
  justify-content: center;
  min-height: 44px;
  min-width: 30px;
  padding: 0 7px;
  touch-action: none;
}

.edugeo-control-drag-handle:active {
  cursor: grabbing;
}

.edugeo-control.is-fixed .edugeo-control-drag-handle {
  display: none;
}

.edugeo-control.is-fixed button.edugeo-control-input {
  border-radius: 8px;
}

.edugeo-control-input {
  align-items: center;
  color: #1e293b;
  display: flex;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 16px;
  gap: 8px;
  min-height: 44px;
  padding: 6px 12px;
}

button.edugeo-control-input {
  background: #2563eb;
  border: 0;
  border-radius: 0 8px 8px 0;
  color: #ffffff;
  cursor: pointer;
  justify-content: center;
  min-width: 96px;
}

.edugeo-control-input input[type="checkbox"] {
  height: 24px;
  margin: 0;
  width: 24px;
}

.edugeo-inputbox-control input,
.edugeo-dropdown-control select {
  border: 1px solid #94a3b8;
  border-radius: 6px;
  font-size: 16px;
  min-height: 44px;
  min-width: 110px;
  padding: 5px 8px;
}

.edugeo-slider-control input[type="range"] {
  min-height: 36px;
  min-width: 150px;
  touch-action: pan-y;
}

.edugeo-slider-control output {
  min-width: 42px;
  text-align: right;
}

.edu-geo-svg {
  display: block;
  height: auto;
  touch-action: none;
  width: 100%;
}

.edu-geo-axis-line {
  stroke: #d6dee7;
  stroke-width: 1.5;
}

.edu-geo-polygon {
  cursor: pointer;
  fill: rgba(47, 111, 237, 0.08);
  pointer-events: visiblePainted;
  stroke: #2f6fed;
  stroke-width: 2;
  transition: opacity 120ms ease, stroke 120ms ease, stroke-width 120ms ease;
}

.edu-geo-segment,
.edu-geo-line {
  cursor: pointer;
  pointer-events: stroke;
  stroke: #263238;
  stroke-linecap: round;
  stroke-width: 2;
  transition: opacity 120ms ease, stroke 120ms ease, stroke-width 120ms ease;
}

.edu-geo-line {
  stroke-dasharray: 8 6;
}

.edu-geo-parallel-line {
  stroke: #12a594;
}

.edu-geo-perpendicular-line {
  stroke: #e5484d;
}

.edu-geo-circle {
  cursor: pointer;
  fill: transparent;
  pointer-events: visibleStroke;
  stroke: #2f6fed;
  stroke-width: 2;
  transition: opacity 120ms ease, stroke 120ms ease, stroke-width 120ms ease;
}

.edu-geo-point {
  cursor: grab;
  fill: #2f6fed;
  stroke: #ffffff;
  stroke-width: 2;
  touch-action: none;
  transition: filter 120ms ease, r 120ms ease, stroke 120ms ease, stroke-width 120ms ease;
}

.edu-geo-point:active {
  cursor: grabbing;
}

.edu-geo-point-static {
  cursor: pointer;
}

.edu-geo-label {
  cursor: pointer;
  fill: #182026;
  font-size: 16px;
  font-weight: 700;
  pointer-events: auto;
  transition: fill 120ms ease, stroke 120ms ease;
}

.edu-geo-point:hover,
.edu-geo-segment:hover,
.edu-geo-line:hover,
.edu-geo-circle:hover,
.edu-geo-polygon:hover,
.edu-geo-label:hover {
  filter: drop-shadow(0 2px 4px rgba(47, 111, 237, 0.24));
  opacity: 0.92;
}

.edu-geo-point.edu-geo-selected {
  stroke: #f59f00;
  stroke-width: 4;
}

.edu-geo-segment.edu-geo-selected,
.edu-geo-line.edu-geo-selected,
.edu-geo-circle.edu-geo-selected,
.edu-geo-polygon.edu-geo-selected {
  stroke: #f59f00;
  stroke-width: 4;
}

.edu-geo-label.edu-geo-selected {
  fill: #b76e00;
  stroke: rgba(245, 159, 0, 0.35);
  stroke-width: 3;
  paint-order: stroke;
}

@media (max-width: 720px) {
  .editor-header,
  .editor-json-header {
    align-items: stretch;
    flex-direction: column;
  }

  .editor-layout {
    grid-template-columns: 1fr;
  }

  .editor-side-panel {
    min-height: 240px;
  }

  .editor-tool-group {
    border-right: 0;
    border-bottom: 1px solid #e6ebf1;
    padding-bottom: 10px;
    padding-right: 0;
    width: 100%;
  }

  .demo-header,
  .demo-json-header {
    align-items: stretch;
    flex-direction: column;
  }

  .demo-actions,
  .demo-toolbar,
  .demo-examples,
  .tool-group {
    justify-content: flex-start;
  }

  .tool-group {
    border-right: 0;
    border-bottom: 1px solid #e6ebf1;
    padding-bottom: 10px;
    padding-right: 0;
    width: 100%;
  }

}

/* Embeddable SDK shells */
.edu-geo-sdk {
  background: var(--edugeo-app-bg);
  color: var(--edugeo-text);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  isolation: isolate;
  max-width: 100%;
  min-height: 260px;
  overflow: hidden;
  position: relative;
}

.edu-geo-sdk,
.edu-geo-sdk * {
  box-sizing: border-box;
}

.edu-geo-sdk-viewer {
  background: #ffffff;
  border: 1px solid var(--edugeo-border);
  border-radius: 8px;
}

.edu-geo-sdk-viewer .edu-geo-sdk-board,
.edu-geo-sdk-viewer .edu-geo-jxg-board {
  border: 0;
  border-radius: inherit;
  box-shadow: none;
  height: 100% !important;
  width: 100% !important;
}

.edu-geo-viewer-controls {
  align-items: center;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid #cbd5e1;
  border-radius: 7px;
  bottom: 10px;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
  display: flex;
  gap: 4px;
  padding: 4px;
  position: absolute;
  right: 10px;
  z-index: 15;
}

.edu-geo-viewer-controls button {
  background: transparent;
  border: 0;
  font-size: 12px;
  padding: 6px 8px;
}

.edu-geo-viewer-controls button:hover {
  background: #eff6ff;
  color: #1d4ed8;
}

.edu-geo-sdk.edu-geo-sdk-editor {
  display: grid;
  grid-template-rows: 40px auto minmax(0, 1fr) 44px 30px;
  height: 720px;
  min-width: 0;
  width: 100%;
}

.edu-geo-sdk-editor .editor-menubar {
  min-width: 0;
  position: relative;
}

.edu-geo-sdk-editor .editor-brand span {
  display: none;
}

.edu-geo-sdk-editor .geometry-toolbar {
  max-height: none;
  overflow-x: auto;
  overflow-y: visible;
}

.edu-geo-sdk-editor .editor-workspace {
  grid-template-columns: minmax(190px, 22%) minmax(320px, 1fr) minmax(230px, 27%);
}

.edu-geo-sdk-editor.is-left-collapsed .editor-workspace {
  grid-template-columns: 0 minmax(320px, 1fr) minmax(230px, 27%);
}

.edu-geo-sdk-editor.is-right-collapsed .editor-workspace {
  grid-template-columns: minmax(190px, 22%) minmax(320px, 1fr) 0;
}

.edu-geo-sdk-editor.is-left-collapsed.is-right-collapsed .editor-workspace {
  grid-template-columns: 0 minmax(320px, 1fr) 0;
}

.edu-geo-sdk-editor .board-frame {
  min-height: 260px;
}

.edu-geo-sdk-editor .command-bar {
  min-width: 0;
}

.edu-geo-sdk-editor .status-bar {
  min-width: 0;
}

.edu-geo-sdk-editor [data-history-count] {
  align-items: center;
  background: #e2e8f0;
  border-radius: 999px;
  display: inline-flex;
  font-size: 10px;
  justify-content: center;
  min-width: 18px;
  padding: 2px 5px;
}

.ai-tutor-panel {
  display: grid;
  gap: 10px;
}

.ai-task-field textarea {
  min-height: 58px;
  resize: vertical;
}

.ai-advice-button {
  background: #2563eb;
  border-color: #2563eb;
  color: #ffffff;
  font-weight: 700;
  width: 100%;
}

.ai-advice-button:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
}

.ai-advice-button:disabled {
  background: #93c5fd;
  border-color: #93c5fd;
  cursor: wait;
}

.ai-result-grid {
  border: 1px solid #dbe3ec;
  border-radius: 8px;
  overflow: hidden;
}

.ai-result-section {
  background: #ffffff;
  border-bottom: 1px solid #e8edf3;
  padding: 10px;
}

.ai-result-section:last-child {
  border-bottom: 0;
}

.ai-result-section h4 {
  color: #475569;
  font-size: 10px;
  letter-spacing: 0.06em;
  margin: 0 0 5px;
  text-transform: uppercase;
}

.ai-result-section p,
.ai-result-section ol,
.ai-result-section ul {
  color: #1e293b;
  font-size: 12px;
  line-height: 1.6;
  margin: 0;
}

.ai-result-section ol,
.ai-result-section ul {
  padding-left: 18px;
}

.ai-result-section.is-warning {
  background: #fffaf0;
}

.ai-result-section.is-warning h4 {
  color: #b45309;
}

.ai-teacher-report {
  background: #f8fafc;
  border: 1px solid #dbe4ee;
  border-radius: 10px;
  overflow: hidden;
}

.ai-teacher-report summary {
  align-items: center;
  color: #334155;
  cursor: pointer;
  display: flex;
  font-size: 12px;
  font-weight: 700;
  gap: 8px;
  justify-content: space-between;
  list-style-position: inside;
  padding: 9px 10px;
}

.ai-teacher-report summary small {
  color: #64748b;
  font-size: 10px;
  font-weight: 500;
}

.ai-teacher-report[open] summary {
  border-bottom: 1px solid #e2e8f0;
}

.ai-teacher-report-content {
  display: grid;
  gap: 8px;
  padding: 10px;
}

.ai-teacher-report-content section {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 8px;
}

.ai-teacher-report-content h4 {
  color: #475569;
  font-size: 11px;
  margin: 0 0 4px;
}

.ai-teacher-report-content p,
.ai-teacher-report-content ul {
  color: #1e293b;
  font-size: 12px;
  line-height: 1.55;
  margin: 0;
}

.ai-teacher-report-content ul {
  padding-left: 18px;
}

.ai-teacher-difficulty-row {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.ai-teacher-difficulty-row h4 {
  margin: 0;
}

.ai-teacher-difficulty-row span {
  background: #e0f2fe;
  border-radius: 999px;
  color: #075985;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 7px;
}

.ai-workbench .ai-tutor-transcript {
  min-height: 0;
}

.ai-workbench .ai-tutor-transcript:empty {
  display: none;
}

.edu-geo-ai-action-overlay {
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  position: absolute;
  z-index: 30;
}

.edu-geo-ai-highlight-layer,
.edu-geo-ai-label-layer {
  height: 100%;
  inset: 0;
  overflow: visible;
  pointer-events: none;
  position: absolute;
  width: 100%;
}

.edu-geo-ai-highlight-shape {
  animation: edu-geo-ai-pulse 1.35s ease-in-out infinite;
  fill: rgba(245, 158, 11, 0.12) !important;
  filter: drop-shadow(0 0 4px rgba(245, 158, 11, 0.85));
  opacity: 1 !important;
  pointer-events: none !important;
  stroke: #f59e0b !important;
  stroke-opacity: 1 !important;
  stroke-width: 6px !important;
  vector-effect: non-scaling-stroke;
}

.edu-geo-ai-temporary-label {
  background: #fffbeb;
  border: 1px solid #fbbf24;
  border-radius: 5px;
  box-shadow: 0 3px 10px rgba(120, 53, 15, 0.18);
  color: #92400e;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.35;
  max-width: 180px;
  padding: 4px 7px;
  position: absolute;
  transform: translate(9px, -110%);
  white-space: normal;
}

[data-tool].is-ai-suggested {
  animation: edu-geo-ai-tool-pulse 1.35s ease-in-out infinite;
  border-color: #f59e0b !important;
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.22) !important;
  color: #92400e !important;
}

@keyframes edu-geo-ai-pulse {
  0%,
  100% {
    filter: drop-shadow(0 0 3px rgba(245, 158, 11, 0.6));
    opacity: 0.75;
  }
  50% {
    filter: drop-shadow(0 0 7px rgba(245, 158, 11, 0.95));
    opacity: 1;
  }
}

@keyframes edu-geo-ai-tool-pulse {
  0%,
  100% {
    background: #ffffff;
  }
  50% {
    background: #fffbeb;
  }
}

@media (prefers-reduced-motion: reduce) {
  .edu-geo-ai-highlight-shape,
  [data-tool].is-ai-suggested {
    animation: none;
  }
}

.ai-tutor-heading {
  align-items: flex-start;
  display: flex;
  gap: 8px;
  justify-content: space-between;
}

.ai-tutor-heading h3,
.ai-tutor-heading p {
  margin: 0;
}

.ai-tutor-heading p {
  color: #64748b;
  font-size: 11px;
  margin-top: 3px;
}

.ai-tutor-heading [data-ai-status] {
  background: #e2e8f0;
  border-radius: 999px;
  color: #475569;
  flex: 0 0 auto;
  font-size: 10px;
  padding: 4px 7px;
}

.ai-tutor-heading [data-ai-status][data-state="loading"] {
  background: #fef3c7;
  color: #92400e;
}

.ai-tutor-heading [data-ai-status][data-state="success"] {
  background: #dcfce7;
  color: #166534;
}

.ai-tutor-heading [data-ai-status][data-state="error"] {
  background: #fee2e2;
  color: #b91c1c;
}

.ai-context-readout {
  background: linear-gradient(135deg, #eff6ff, #f8fafc);
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  display: grid;
  gap: 5px;
  padding: 9px 10px;
}

.ai-context-readout div {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.ai-context-readout strong { color: #1d4ed8; }
.ai-context-readout p { color: #475569; font-size: 11px; margin: 0; }
.ai-context-readout button { justify-self: end; min-height: 32px; padding: 4px 9px; }

.ai-command-planner {
  display: grid;
  gap: 8px;
  padding: 10px;
  border: 1px solid #cbdaf1;
  border-radius: 10px;
  background: rgba(248, 251, 255, 0.94);
}
.ai-command-planner label { display: grid; gap: 5px; color: #334155; font-size: 12px; font-weight: 700; }
.ai-command-planner textarea { width: 100%; min-height: 56px; resize: vertical; }
.ai-command-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.ai-command-actions span { color: #64748b; font-size: 11px; }
.ai-command-actions span[data-state="error"] { color: #b91c1c; }
.ai-command-actions span[data-state="success"] { color: #15803d; }
.ai-command-preview { padding: 9px; border: 1px solid #93c5fd; border-radius: 8px; background: #eff6ff; }
.ai-command-preview strong { color: #1d4ed8; }
.ai-command-preview p { margin: 5px 0; color: #475569; font-size: 12px; }
.ai-command-preview ol { margin: 6px 0 8px; padding-left: 22px; }
.ai-command-preview li { margin: 4px 0; color: #475569; font-size: 12px; }
.ai-command-preview code { color: #0f3d78; font-weight: 700; overflow-wrap: anywhere; }

.ai-teaching-generator { display: grid; gap: 8px; padding: 10px; border: 1px solid #d7c8f3; border-radius: 10px; background: rgba(250, 248, 255, .95); }
.ai-teaching-heading { display: flex; justify-content: space-between; align-items: center; gap: 8px; color: #5b21b6; }
.ai-teaching-heading label { display: flex; align-items: center; gap: 5px; color: #475569; font-size: 12px; }
.ai-teaching-kinds, .ai-teaching-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.ai-teaching-kinds button { min-height: 34px; padding: 5px 8px; }
.ai-teaching-generator > span { color: #64748b; font-size: 11px; }
.ai-teaching-generator > span[data-state="error"] { color: #b91c1c; }
.ai-teaching-generator > span[data-state="success"] { color: #15803d; }
.ai-teaching-output { padding: 9px; border: 1px solid #c4b5fd; border-radius: 8px; background: #fff; }
.ai-teaching-output > strong { color: #6d28d9; }
.ai-teaching-output pre { max-height: 260px; overflow: auto; margin: 7px 0; padding: 8px; border-radius: 7px; background: #f8fafc; color: #334155; font: 12px/1.6 system-ui, sans-serif; white-space: pre-wrap; }

.ai-tutor-source {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  color: #64748b;
  font-size: 10px;
  line-height: 1.5;
  padding: 7px 8px;
}

.ai-tutor-transcript {
  display: grid;
  gap: 8px;
  max-height: 260px;
  min-height: 96px;
  overflow: auto;
}

.ai-tutor-message {
  background: #eff6ff;
  border-radius: 10px 10px 10px 3px;
  color: #1e3a5f;
  font-size: 12px;
  line-height: 1.55;
  padding: 8px 10px;
  white-space: pre-wrap;
}

.ai-tutor-message strong {
  display: block;
  font-size: 10px;
  margin-bottom: 3px;
  opacity: 0.7;
}

.ai-tutor-message.is-student {
  background: #f1f5f9;
  border-radius: 10px 10px 3px 10px;
  color: #334155;
  margin-left: 18px;
}

.ai-tutor-message.is-error {
  background: #fef2f2;
  color: #b91c1c;
}

.ai-tutor-quick-actions {
  display: grid;
  gap: 5px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.ai-tutor-quick-actions button {
  font-size: 11px;
  min-width: 0;
  padding: 6px;
}

.ai-tutor-form {
  display: grid;
  gap: 6px;
}

.ai-tutor-form textarea {
  min-height: 58px;
  resize: vertical;
}

.ai-tutor-form button {
  justify-self: end;
}

.edu-geo-sdk:fullscreen,
.edu-geo-sdk:-webkit-full-screen {
  height: 100vh !important;
  width: 100vw !important;
}

@media (max-width: 900px) {
  .editor-app {
    grid-template-rows: 40px auto minmax(0, 1fr) auto 30px;
    min-width: 0;
  }

  .editor-app .editor-brand span,
  .editor-app .object-panel,
  .editor-app .property-panel {
    display: none;
  }

  .editor-app .editor-menubar {
    gap: 8px;
    padding: 0 6px 0 10px;
  }

  .editor-app .menu-item > button {
    padding: 0 8px;
  }

  .editor-app .geometry-toolbar {
    min-height: 64px;
    padding: 6px;
  }

  .editor-app .editor-workspace,
  .editor-app.is-left-collapsed .editor-workspace,
  .editor-app.is-right-collapsed .editor-workspace,
  .editor-app.is-left-collapsed.is-right-collapsed .editor-workspace {
    grid-template-columns: minmax(0, 1fr);
  }

  .editor-app .board-center {
    padding: 6px;
  }

  .editor-app .command-bar {
    grid-template-columns: minmax(0, 1fr) auto;
    min-height: 44px;
    padding: 6px;
  }

  .editor-app .command-bar label {
    display: none;
  }

  .editor-app .status-bar {
    gap: 8px;
    overflow: hidden;
    padding: 0 8px;
  }

  .editor-app .status-bar span {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .edu-geo-sdk-editor .editor-workspace {
    grid-template-columns: minmax(0, 1fr);
  }

  .edu-geo-sdk-editor .object-panel,
  .edu-geo-sdk-editor .property-panel {
    display: none;
  }

  .edu-geo-sdk-editor .editor-brand {
    display: none;
  }
}
.edugeo-dynamic-text-rendered {
  white-space: pre-wrap;
}

.edugeo-latex {
  display: inline-flex;
  align-items: baseline;
  gap: 0.04em;
  font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif;
}

.edugeo-latex-group {
  display: inline-flex;
  align-items: baseline;
}

.edugeo-latex-frac {
  display: inline-flex;
  flex-direction: column;
  align-items: stretch;
  vertical-align: middle;
  line-height: 1.05;
  margin: 0 0.12em;
}

.edugeo-latex-num,
.edugeo-latex-den {
  display: block;
  padding: 0 0.14em;
  text-align: center;
}

.edugeo-latex-num {
  border-bottom: 1px solid currentColor;
}

.edugeo-latex-sqrt {
  display: inline-flex;
  align-items: flex-start;
}

.edugeo-latex-radical {
  font-size: 1.15em;
  line-height: 1;
}

.edugeo-latex-radicand {
  border-top: 1px solid currentColor;
  padding: 0 0.08em;
}

.edugeo-latex-root-index {
  font-size: 0.55em;
  margin-right: -0.18em;
}

.edugeo-latex-sup,
.edugeo-latex-sub {
  font-size: 0.72em;
  line-height: 1;
}

.edugeo-latex-matrix,
.edugeo-latex-cases {
  display: inline-flex;
  flex-direction: column;
  gap: 0.12em;
  padding: 0.08em 0.25em;
  vertical-align: middle;
}

.edugeo-latex-pmatrix::before,
.edugeo-latex-pmatrix::after {
  font-size: 1.8em;
  line-height: 0.6;
  position: absolute;
}

.edugeo-latex-pmatrix::before {
  content: "(";
  transform: translateX(-0.35em);
}

.edugeo-latex-pmatrix::after {
  content: ")";
  align-self: flex-end;
  transform: translateX(0.35em);
}

.edugeo-latex-bmatrix {
  border-left: 1px solid currentColor;
  border-right: 1px solid currentColor;
}

.edugeo-latex-matrix-row,
.edugeo-latex-case-row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(1.2em, auto);
  gap: 0.45em;
}

.edugeo-latex-matrix-cell,
.edugeo-latex-case-cell {
  text-align: center;
}

.edugeo-latex-cases {
  border-left: 2px solid currentColor;
  border-radius: 45% 0 0 45%;
}

.developer-only { display: none !important; }
.board-frame { position: relative; }
.interaction-mode-toggle {
  position: absolute; right: 14px; bottom: 14px; z-index: 18;
  min-width: 62px; min-height: 40px; padding: 8px 13px;
  border: 1px solid rgba(37, 99, 235, .26); border-radius: 999px;
  background: rgba(248, 251, 255, .9); color: #1d4ed8;
  box-shadow: 0 8px 24px rgba(30, 64, 175, .14); backdrop-filter: blur(10px);
  font-weight: 700; cursor: pointer; touch-action: manipulation;
}
.interaction-mode-toggle:hover, .interaction-mode-toggle:focus-visible {
  background: #fff; border-color: rgba(37, 99, 235, .55); transform: translateY(-1px);
}
.interaction-mode-toggle[data-mode="construct"] {
  color: #0f766e; border-color: rgba(13, 148, 136, .34); background: rgba(240, 253, 250, .92);
}

/* Step 79B: isolated spatial renderer prototype. */
.spatial-lab-entry {
  align-items: center;
  background: rgba(248, 251, 255, 0.94);
  border: 1px solid rgba(37, 99, 235, 0.28);
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(30, 64, 175, 0.13);
  color: #1d4ed8;
  cursor: pointer;
  display: inline-flex;
  font-weight: 700;
  gap: 6px;
  min-height: 40px;
  padding: 7px 12px;
  position: absolute;
  right: 14px;
  top: 14px;
  z-index: 18;
}

.spatial-lab-entry span {
  background: #dbeafe;
  border-radius: 999px;
  color: #1e40af;
  font-size: 10px;
  line-height: 1;
  padding: 4px 6px;
}

.spatial-lab-entry:hover,
.spatial-lab-entry:focus-visible {
  background: #ffffff;
  border-color: #60a5fa;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12), 0 10px 26px rgba(30, 64, 175, 0.15);
  outline: 0;
}

.spatial-lab-prototype {
  background: #f8fbff;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  inset: 0;
  min-height: 0;
  overflow: hidden;
  position: absolute;
  z-index: 22;
}

.spatial-lab-prototype[hidden] {
  display: none;
}

.spatial-lab-header {
  align-items: center;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid #d7e2ef;
  display: flex;
  justify-content: space-between;
  min-height: 50px;
  padding: 7px 10px 7px 14px;
}

.spatial-lab-header > div {
  display: grid;
  gap: 2px;
}

.spatial-lab-header strong {
  color: #172033;
  font-size: 14px;
}

.spatial-lab-header span {
  color: #64748b;
  font-size: 11px;
}

.spatial-lab-header button,
.spatial-lab-controls button {
  background: #ffffff;
  border: 1px solid #bfd3ef;
  border-radius: 8px;
  color: #1d4ed8;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  min-height: 38px;
  padding: 7px 11px;
}

.spatial-lab-header button:hover,
.spatial-lab-header button:focus-visible,
.spatial-lab-controls button:hover,
.spatial-lab-controls button:focus-visible,
.spatial-lab-controls button.is-active {
  background: #eff6ff;
  border-color: #60a5fa;
  outline: 0;
}

.spatial-lab-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 300px);
  min-height: 0;
  overflow: hidden;
}

.spatial-renderer-host {
  background: #f8fbff;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
  position: relative;
}

.spatial-label-layer {
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  position: absolute;
  z-index: 2;
}

.spatial-object-label {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(148, 163, 184, 0.45);
  border-radius: 5px;
  color: #1e293b;
  font-size: 11px;
  left: 0;
  line-height: 1.2;
  padding: 2px 5px;
  position: absolute;
  top: 0;
  white-space: nowrap;
}

.spatial-object-label.is-selected {
  background: #dbeafe;
  border-color: #60a5fa;
  color: #1d4ed8;
  font-weight: 700;
}

.spatial-object-label.is-linked-highlight {
  background: #fef3c7;
  border-color: #f59e0b;
  color: #92400e;
  font-weight: 700;
}

.spatial-renderer-canvas {
  display: block;
  height: 100%;
  outline: 0;
  touch-action: none;
  width: 100%;
}

.spatial-lab-controls {
  align-content: start;
  background: #ffffff;
  border-left: 1px solid #d7e2ef;
  display: grid;
  gap: 10px;
  min-height: 0;
  overflow: auto;
  padding: 12px;
}

.spatial-lab-note,
.spatial-lab-status,
.spatial-lab-debug {
  color: #64748b;
  font-size: 11px;
  line-height: 1.5;
  margin: 0;
}

.spatial-lab-status[data-state="error"] {
  color: #b42318;
}

.spatial-lab-controls label {
  color: #334155;
  display: grid;
  font-size: 12px;
  font-weight: 700;
  gap: 5px;
  grid-template-columns: auto 1fr;
}

.spatial-lab-controls label input {
  grid-column: 1 / -1;
  margin: 0;
  width: 100%;
}

.spatial-lab-controls label select {
  background: #f8fbff;
  border: 1px solid #cbd9ea;
  border-radius: 7px;
  color: #334155;
  font: inherit;
  font-weight: 500;
  grid-column: 1 / -1;
  min-height: 34px;
  padding: 5px 7px;
  width: 100%;
}

.spatial-lab-controls label select:focus-visible {
  border-color: #60a5fa;
  outline: 2px solid rgba(37, 99, 235, 0.16);
}

.spatial-lab-controls label input:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

.spatial-lab-controls output {
  color: #1d4ed8;
  font-variant-numeric: tabular-nums;
  justify-self: end;
}

.spatial-object-tools,
.spatial-object-inspector,
.spatial-lesson-controls,
.spatial-linked-view-panel {
  border-top: 1px solid #e2e8f0;
  display: grid;
  gap: 8px;
  padding-top: 10px;
}

.spatial-object-tools h3,
.spatial-object-inspector h3,
.spatial-lesson-controls h3,
.spatial-linked-view-panel h3 {
  color: #172033;
  font-size: 13px;
  margin: 0;
}

.spatial-linked-view-panel {
  border-top: 1px solid #e2e8f0;
  display: grid;
  gap: 8px;
  padding-top: 10px;
}

.spatial-linked-view-panel[data-state="warning"] {
  border-top-color: #fdba74;
}

.spatial-linked-view-panel > p {
  color: #64748b;
  font-size: 10px;
  line-height: 1.45;
  margin: 0;
}

.spatial-lab-controls .spatial-linked-view-panel > label {
  display: grid;
  grid-template-columns: 1fr;
}

.spatial-linked-view-panel textarea {
  background: #f8fbff;
  border: 1px solid #cbd9ea;
  border-radius: 7px;
  box-sizing: border-box;
  color: #334155;
  font: inherit;
  font-weight: 500;
  line-height: 1.45;
  min-height: 56px;
  padding: 6px 7px;
  resize: vertical;
  width: 100%;
}

.spatial-linked-view-actions {
  display: grid;
  gap: 5px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.spatial-linked-view-actions button {
  font-size: 10px;
  min-height: 34px;
  padding: 5px 6px;
}

.spatial-linked-view-actions button:last-child {
  grid-column: 1 / -1;
}

.spatial-lesson-controls[hidden] { display: none; }
.spatial-lesson-heading { align-items: center; display: flex; gap: 8px; justify-content: space-between; }
.spatial-lesson-heading output { color: #1d4ed8; font-size: 11px; font-weight: 700; }
.spatial-lab-controls .spatial-lesson-mode { align-items: center; display: grid; grid-template-columns: auto minmax(0, 1fr); }
.spatial-lesson-mode select { min-width: 0; width: 100%; }
.spatial-lesson-step-text,
.spatial-lesson-question { border-radius: 7px; font-size: 11px; line-height: 1.5; margin: 0; padding: 7px 8px; }
.spatial-lesson-step-text { background: #eff6ff; color: #1e3a8a; font-weight: 700; }
.spatial-lesson-question { background: #f8fafc; border: 1px solid #dbeafe; color: #475569; }
.spatial-lesson-actions { display: grid; gap: 5px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.spatial-lesson-actions button { font-size: 11px; min-height: 34px; padding: 5px 7px; }
.spatial-lesson-save { min-height: 36px; width: 100%; }
.spatial-lesson-controls[data-mode="studentInquiry"] .spatial-lesson-question { border-color: #a7f3d0; background: #ecfdf5; color: #065f46; }
.spatial-lesson-controls[data-mode="presentation"] .spatial-lesson-step-text { font-size: 12px; }
.spatial-lab-controls .spatial-lesson-check { align-items: center; display: flex; font-weight: 600; gap: 7px; }
.spatial-lab-controls .spatial-lesson-check input { margin: 0; width: auto; }
.spatial-lab-controls .spatial-lesson-note { display: grid; grid-template-columns: 1fr; }
.spatial-lesson-note textarea { background: #f8fbff; border: 1px solid #cbd9ea; border-radius: 7px; box-sizing: border-box; color: #334155; font: inherit; font-weight: 500; line-height: 1.45; min-height: 56px; padding: 6px 7px; resize: vertical; width: 100%; }
.spatial-lesson-note textarea:focus { border-color: #60a5fa; outline: 2px solid rgba(37, 99, 235, 0.14); }

.spatial-tool-row {
  display: grid;
  gap: 5px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.spatial-tool-row button {
  font-size: 11px;
  min-height: 34px;
  padding: 5px 7px;
}

.spatial-tool-row button.is-active {
  background: #2563eb;
  border-color: #2563eb;
  color: #fff;
}

.spatial-tool-categories {
  display: grid;
  gap: 5px;
}

.spatial-tool-categories details {
  border: 1px solid #dbe5f1;
  border-radius: 8px;
  overflow: hidden;
}

.spatial-tool-categories summary {
  background: #f8fbff;
  color: #334155;
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
  list-style-position: inside;
  min-height: 32px;
  padding: 7px 8px;
}

.spatial-tool-categories details .spatial-tool-row {
  padding: 6px;
}

.spatial-construction-session {
  background: #eff6ff;
  border: 1px solid #93c5fd;
  border-radius: 9px;
  color: #1e3a8a;
  display: grid;
  gap: 5px;
  padding: 8px;
}

.spatial-construction-session[hidden] { display: none; }
.spatial-construction-session strong { font-size: 11px; line-height: 1.45; }
.spatial-construction-session span { color: #475569; font-size: 10px; }
.spatial-construction-session button { justify-self: start; }

.spatial-object-toolbar {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.spatial-object-toolbar output { color: #64748b; font-size: 10px; }
.spatial-lab-controls .spatial-object-search { display: grid; grid-template-columns: 1fr; }
.spatial-lab-controls .spatial-object-search input { grid-column: 1; }

.spatial-object-group {
  display: grid;
  gap: 3px;
}

.spatial-object-group-heading {
  background: #f8fafc !important;
  border-color: #dbe5f1 !important;
  color: #475569 !important;
  font-weight: 700;
  min-height: 30px !important;
  text-align: left;
}

.spatial-object-row {
  align-items: center;
  grid-template-columns: minmax(0, 1fr) auto auto auto;
}

.spatial-object-row button:first-child {
  display: grid;
  gap: 1px;
}

.spatial-object-row button:first-child small {
  color: #64748b;
  font-size: 9px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.spatial-object-row.is-construction-selected button:first-child {
  background: #ecfdf5;
  border-color: #34d399;
  box-shadow: inset 3px 0 #10b981;
}

.spatial-object-badges { display: flex; gap: 2px; }
.spatial-object-badge { border-radius: 999px; font-size: 8px; padding: 2px 4px; white-space: nowrap; }
.spatial-object-badge.is-locked { background: #f1f5f9; color: #475569; }
.spatial-object-badge.is-warning { background: #fff7ed; color: #b45309; }
.spatial-object-badge.is-error { background: #fef2f2; color: #b42318; }
.spatial-object-empty { color: #64748b; font-size: 11px; margin: 8px 0; text-align: center; }
.spatial-object-meta,.spatial-binding-summary { color: #64748b; font-size: 10px; line-height: 1.45; margin: 0; overflow-wrap: anywhere; }
.spatial-dimension-fields { display: grid; gap: 5px; grid-template-columns: repeat(2,minmax(0,1fr)); }
.spatial-dimension-fields[hidden],.spatial-dimension-fields label[hidden] { display: none; }
.spatial-property-panel { min-width: 0; }
.spatial-property-panel .spatial-property-warning { color: #b45309; overflow-wrap: anywhere; }

.spatial-command-hint,
.spatial-coordinate-fields p,
.spatial-object-warning {
  color: #64748b;
  font-size: 10px;
  line-height: 1.45;
  margin: 0;
}

.spatial-object-warning:not(:empty) {
  color: #b45309;
}

.spatial-object-list {
  display: grid;
  gap: 4px;
  max-height: 190px;
  overflow: auto;
}

.spatial-object-row {
  display: grid;
  gap: 4px;
  grid-template-columns: minmax(0, 1fr) auto auto auto;
}

.spatial-object-row button {
  font-size: 11px;
  min-height: 32px;
  overflow: hidden;
  padding: 4px 7px;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.spatial-object-row.is-selected button:first-child {
  background: #dbeafe;
  border-color: #60a5fa;
}

.spatial-object-inspector[hidden],
.spatial-coordinate-fields[hidden] {
  display: none;
}

.spatial-coordinate-fields {
  display: grid;
  gap: 5px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.spatial-coordinate-fields label {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
}

.spatial-coordinate-fields p {
  grid-column: 1 / -1;
}

.spatial-lab-controls input[type="text"],
.spatial-lab-controls input[type="number"] {
  background: #f8fbff;
  border: 1px solid #cbd9ea;
  border-radius: 7px;
  box-sizing: border-box;
  color: #334155;
  font: inherit;
  min-height: 34px;
  padding: 5px 7px;
}

.spatial-delete-object {
  border-color: #fecaca !important;
  color: #b42318 !important;
}

.spatial-projection-switch {
  display: grid;
  gap: 6px;
  grid-template-columns: 1fr 1fr;
}

.spatial-projection-switch button[aria-pressed="true"] {
  background: #2563eb;
  border-color: #2563eb;
  color: #ffffff;
}

.editor-app.is-spatial-lab-open .interaction-mode-toggle,
.editor-app.is-spatial-lab-open .spatial-lab-entry {
  visibility: hidden;
}

.editor-app.is-spatial-lab-open .object-panel-mobile-toggle,
.editor-app.is-spatial-lab-open .property-panel-mobile-toggle,
.edu-geo-sdk-editor.is-spatial-lab-open .object-panel-mobile-toggle,
.edu-geo-sdk-editor.is-spatial-lab-open .property-panel-mobile-toggle {
  display: none !important;
}

@media (max-width: 620px) {
  .editor-app.is-spatial-lab-open .object-panel-mobile-toggle,
  .editor-app.is-spatial-lab-open .property-panel-mobile-toggle,
  .edu-geo-sdk-editor.is-spatial-lab-open .object-panel-mobile-toggle,
  .edu-geo-sdk-editor.is-spatial-lab-open .property-panel-mobile-toggle {
    display: none;
  }

  .spatial-lab-entry {
    min-height: 38px;
    padding: 6px 9px;
    right: 9px;
    top: 9px;
  }

  .spatial-lab-body {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(180px, 1fr) auto;
  }

  .spatial-lab-controls {
    border-left: 0;
    border-top: 1px solid #d7e2ef;
    gap: 8px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    max-height: 42vh;
    padding: 9px;
  }

  .spatial-tool-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .spatial-object-row { grid-template-columns: minmax(0, 1fr) auto auto auto; }
  .spatial-object-badges { grid-column: 1; }

  .spatial-lab-note,
  .spatial-projection-switch,
  .spatial-reset-view,
  .spatial-lab-status,
  .spatial-lab-debug,
  .spatial-object-tools,
  .spatial-object-inspector,
  .spatial-lesson-controls,
  .spatial-linked-view-panel {
    grid-column: 1 / -1;
  }

  .spatial-lab-controls label {
    min-width: 0;
  }

  .spatial-lab-header button,
  .spatial-lab-controls button {
    min-height: 44px;
  }
}
.developer-panel {
  position: fixed; right: 18px; top: 72px; z-index: 90;
  width: min(460px, calc(100vw - 36px)); max-height: calc(100vh - 160px); overflow: auto;
  padding: 16px; border: 1px solid rgba(37, 99, 235, .2); border-radius: 16px;
  background: rgba(248, 251, 255, .97); box-shadow: 0 22px 56px rgba(15, 23, 42, .22);
  backdrop-filter: blur(16px);
}
.developer-panel[hidden] { display: none; }
.developer-panel header, .developer-panel .developer-actions {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
}
.developer-panel header div { display: grid; gap: 3px; }
.developer-panel header small { color: #64748b; }
.developer-panel button {
  min-height: 38px; border: 1px solid #cbd5e1; border-radius: 10px;
  background: #fff; color: #334155; cursor: pointer;
}
.developer-panel a[data-developer-test] { display: inline-flex; align-items: center; min-height: 32px; padding: 4px 10px; border: 1px solid #9db8da; border-radius: 8px; background: #f7fbff; color: #244d7d; text-decoration: none; }
.developer-panel .developer-actions { margin: 14px 0; justify-content: flex-start; flex-wrap: wrap; }
.developer-panel section { margin-top: 12px; }
.developer-panel h3 { margin: 0 0 6px; font-size: 13px; color: #334155; }
.developer-panel pre {
  max-height: 220px; overflow: auto; margin: 0; padding: 10px; border-radius: 10px;
  background: #eef4fb; color: #334155; font-size: 11px; white-space: pre-wrap; overflow-wrap: anywhere;
}
@media (max-width: 640px) {
  .interaction-mode-toggle { right: 10px; bottom: 10px; min-height: 44px; }
  .developer-panel { right: 10px; top: 62px; width: calc(100vw - 20px); max-height: calc(100vh - 150px); }
}
/* Function value table: a compact teaching panel, never a debug-data surface. */
.function-value-table-panel{position:fixed;right:24px;bottom:24px;z-index:1200;width:min(420px,calc(100vw - 48px));max-height:min(70vh,640px);display:flex;flex-direction:column;background:var(--edugeo-panel-bg,#fff);border:1px solid var(--edugeo-border,#d7dee7);border-radius:16px;box-shadow:0 18px 48px rgba(15,23,42,.16);backdrop-filter:blur(14px);color:var(--edugeo-text,#182026);overflow:hidden}
.function-value-table-panel[hidden]{display:none}
.function-value-table-header{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--edugeo-border,#d7dee7);background:var(--edugeo-panel-muted,#f8fafc)}
.function-value-table-header>div{display:flex;flex-direction:column;gap:2px}.function-value-table-header span{font-size:12px;color:var(--edugeo-muted,#64748b)}.function-value-table-header button{width:34px;height:34px;border:0;border-radius:10px;background:transparent;color:var(--edugeo-muted,#64748b);font-size:22px;cursor:pointer}.function-value-table-header button:hover{background:var(--edugeo-panel-muted,#f8fafc);color:var(--edugeo-accent,#2563eb)}
.function-value-table-config{display:grid;gap:8px;padding:10px 14px;border-bottom:1px solid var(--edugeo-border,#d7dee7)}.function-value-table-config label{display:grid;gap:4px;font-size:12px;color:var(--edugeo-muted,#64748b)}.function-value-table-config input,.function-value-table-config select{min-height:34px;border:1px solid var(--edugeo-border,#d7dee7);border-radius:8px;padding:6px 8px;background:var(--edugeo-panel-bg,#fff);color:var(--edugeo-text,#182026)}.function-value-table-config>button{min-height:36px;border:0;border-radius:9px;background:var(--edugeo-accent,#2563eb);color:#fff;font-weight:700;cursor:pointer}.function-value-table-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.function-value-table-options{display:flex;align-items:end;gap:12px}.function-value-table-options label:first-child{display:flex;align-items:center;gap:6px;flex:1}.function-value-table-options input[type=checkbox]{min-height:auto}
.function-value-table-warnings{padding:0 14px}.function-value-table-warning{margin:8px 0;padding:7px 9px;border-radius:8px;background:#fff7ed;color:#9a3412;font-size:12px}.function-value-table-warning.error{background:#fef2f2;color:#b91c1c}
.function-value-table-scroll{min-height:120px;overflow:auto}.function-value-table-panel table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}.function-value-table-panel th{position:sticky;top:0;z-index:1;background:var(--edugeo-panel-muted,#f8fafc);color:var(--edugeo-muted,#64748b);font-size:12px}.function-value-table-panel th,.function-value-table-panel td{padding:8px 10px;border-bottom:1px solid var(--edugeo-border,#d7dee7);text-align:right}.function-value-table-panel th:first-child,.function-value-table-panel td:first-child{text-align:center}.function-value-table-panel tbody tr{cursor:pointer;outline:none}.function-value-table-panel tbody tr:hover,.function-value-table-panel tbody tr:focus,.function-value-table-panel tbody tr.is-selected{background:var(--edugeo-panel-muted,#f8fafc);color:var(--edugeo-accent,#2563eb)}.function-value-table-panel tbody tr.is-selected{font-weight:700}
@media(max-width:600px){.function-value-table-panel{left:0;right:0;bottom:0;width:100%;max-height:72vh;border-radius:18px 18px 0 0}.function-value-table-fields{grid-template-columns:repeat(3,minmax(0,1fr))}.function-value-table-config{padding:9px 12px}.function-value-table-panel th,.function-value-table-panel td{padding:9px 8px}}

/* Function inquiry: persistent classroom workflow, not a debug surface. */
.function-inquiry-panel{position:fixed;right:24px;bottom:72px;z-index:1210;width:min(460px,calc(100vw - 48px));max-height:min(76vh,700px);display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--edugeo-border,#d7dee7);border-radius:18px;background:var(--edugeo-panel-bg,#fff);color:var(--edugeo-text,#182026);box-shadow:0 20px 54px rgba(15,23,42,.18);backdrop-filter:blur(14px)}
.function-inquiry-panel[hidden]{display:none}.function-inquiry-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-bottom:1px solid var(--edugeo-border,#d7dee7);background:var(--edugeo-panel-muted,#f8fafc)}.function-inquiry-header>div{display:grid;gap:2px}.function-inquiry-header span{font-size:12px;color:var(--edugeo-muted,#64748b)}.function-inquiry-header button{width:36px;height:36px;border:0;border-radius:10px;background:transparent;color:var(--edugeo-muted,#64748b);font-size:22px;cursor:pointer}.function-inquiry-header button:hover{background:rgba(37,99,235,.08);color:var(--edugeo-accent,#2563eb)}
.function-inquiry-phases{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:4px;padding:8px 10px;border-bottom:1px solid var(--edugeo-border,#d7dee7);background:var(--edugeo-panel-muted,#f8fafc)}.function-inquiry-phases button{min-width:0;min-height:38px;padding:5px 3px;border:1px solid transparent;border-radius:9px;background:transparent;color:var(--edugeo-muted,#64748b);font-size:11px;cursor:pointer}.function-inquiry-phases button.is-active{border-color:rgba(37,99,235,.25);background:rgba(37,99,235,.1);color:var(--edugeo-accent,#2563eb);font-weight:700}
.function-inquiry-scroll{min-height:180px;overflow:auto;padding:12px 14px}.function-inquiry-scroll section{display:grid;gap:10px}.function-inquiry-scroll section[hidden]{display:none}.function-inquiry-scroll label{display:grid;gap:5px;color:var(--edugeo-muted,#64748b);font-size:12px}.function-inquiry-scroll input,.function-inquiry-scroll textarea,.function-inquiry-scroll select{width:100%;min-height:36px;box-sizing:border-box;border:1px solid var(--edugeo-border,#d7dee7);border-radius:9px;padding:7px 9px;background:var(--edugeo-panel-bg,#fff);color:var(--edugeo-text,#182026)}.function-inquiry-scroll textarea{min-height:88px;resize:vertical}.function-inquiry-scroll button,.function-inquiry-footer button{min-height:38px;border:1px solid var(--edugeo-border,#d7dee7);border-radius:9px;padding:7px 12px;background:var(--edugeo-panel-bg,#fff);color:var(--edugeo-text,#182026);cursor:pointer}.function-inquiry-scroll button.primary,.function-inquiry-footer button.primary{border-color:var(--edugeo-accent,#2563eb);background:var(--edugeo-accent,#2563eb);color:#fff;font-weight:700}.function-inquiry-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:9px}.function-inquiry-prompt{margin:0 0 12px;padding:9px 11px;border-left:3px solid var(--edugeo-accent,#2563eb);border-radius:0 9px 9px 0;background:rgba(37,99,235,.06);font-size:13px;line-height:1.55}.function-inquiry-result{padding:10px;border:1px solid var(--edugeo-border,#d7dee7);border-radius:10px;background:var(--edugeo-panel-muted,#f8fafc)}.function-inquiry-result p{margin:4px 0}.function-inquiry-result ul{margin:7px 0;padding-left:20px}.function-inquiry-result .stale{color:#b45309;font-weight:700}.function-inquiry-parameters,.function-inquiry-tables{display:grid;gap:8px}.function-inquiry-parameters h4,.function-inquiry-tables h4,.function-inquiry-functions h4{margin:4px 0;font-size:13px}.function-inquiry-parameter span{display:flex;justify-content:space-between}.function-inquiry-parameter input[type=range]{padding:0}.function-inquiry-check{display:flex!important;grid-template-columns:auto 1fr!important;align-items:center}.function-inquiry-check input{width:auto;min-height:auto}.function-inquiry-teacher{margin-top:14px;padding-top:10px;border-top:1px solid var(--edugeo-border,#d7dee7)}.function-inquiry-teacher summary{cursor:pointer;color:var(--edugeo-muted,#64748b);font-size:12px}.function-inquiry-teacher[open]{display:grid;gap:8px}.function-inquiry-warnings p{margin:8px 0 0;padding:7px 9px;border-radius:8px;background:#fff7ed;color:#9a3412;font-size:12px}.function-inquiry-warnings p.error{background:#fef2f2;color:#b91c1c}.function-inquiry-footer{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;padding:10px 14px;border-top:1px solid var(--edugeo-border,#d7dee7);background:var(--edugeo-panel-muted,#f8fafc)}.function-inquiry-footer span{text-align:center;color:var(--edugeo-muted,#64748b);font-size:12px}.function-inquiry-footer button:disabled{opacity:.45;cursor:not-allowed}.function-inquiry-panel .muted{color:var(--edugeo-muted,#64748b);font-size:12px}
@media(max-width:600px){.function-inquiry-panel{left:0;right:0;bottom:0;width:100%;max-height:78vh;border-radius:18px 18px 0 0}.function-inquiry-header{padding:10px 12px}.function-inquiry-phases{gap:2px;padding:6px}.function-inquiry-phases button{min-height:42px;font-size:10px}.function-inquiry-scroll{padding:10px 12px}.function-inquiry-grid{grid-template-columns:1fr}.function-inquiry-footer{padding:8px 10px}.function-inquiry-scroll textarea{min-height:82px}}

/* Step 71.3: classroom-facing function parameter explorer. */
.function-parameter-panel{position:fixed;right:24px;bottom:72px;z-index:1220;width:min(480px,calc(100vw - 48px));max-height:min(78vh,740px);display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--edugeo-border,#d7dee7);border-radius:18px;background:rgba(255,255,255,.97);color:var(--edugeo-text,#182026);box-shadow:0 22px 58px rgba(15,23,42,.18);backdrop-filter:blur(16px)}
.function-parameter-panel[hidden]{display:none}.function-parameter-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-bottom:1px solid var(--edugeo-border,#d7dee7);background:var(--edugeo-panel-muted,#f8fafc)}.function-parameter-header>div{display:grid;gap:2px}.function-parameter-header span{font-size:12px;color:#64748b}.function-parameter-header button{width:36px;height:36px;border:0;border-radius:10px;background:transparent;color:#64748b;font-size:22px;cursor:pointer}.function-parameter-header button:hover{background:rgba(37,99,235,.08);color:#2563eb}
.function-parameter-modes{display:grid;grid-template-columns:repeat(3,1fr);gap:5px;padding:8px 10px;border-bottom:1px solid var(--edugeo-border,#d7dee7);background:#f8fafc}.function-parameter-modes button{min-height:40px;border:1px solid transparent;border-radius:9px;background:transparent;color:#64748b;cursor:pointer}.function-parameter-modes button.is-active{border-color:rgba(37,99,235,.25);background:rgba(37,99,235,.1);color:#1d4ed8;font-weight:700}
.function-parameter-scroll{min-height:220px;overflow:auto;padding:12px;display:grid;gap:10px}.function-parameter-card{display:grid;gap:9px;padding:11px;border:1px solid var(--edugeo-border,#d7dee7);border-radius:12px;background:#fff}.function-parameter-card h4{margin:0;font-size:13px}.function-parameter-card label{display:grid;gap:5px;color:#64748b;font-size:12px}.function-parameter-card input[type=text],.function-parameter-card textarea{box-sizing:border-box;width:100%;min-height:36px;padding:7px 9px;border:1px solid var(--edugeo-border,#d7dee7);border-radius:9px;background:#fff;color:#172033}.function-parameter-card textarea{min-height:72px;resize:vertical}.function-parameter-card button,.function-parameter-footer button{min-height:36px;padding:6px 10px;border:1px solid #cbd5e1;border-radius:9px;background:#fff;color:#334155;cursor:pointer}.function-parameter-card button:hover,.function-parameter-footer button:hover{border-color:#93b4e7;color:#1d4ed8;background:#f8fbff}.function-parameter-card-title{display:flex;align-items:center;justify-content:space-between;gap:8px}.function-parameter-card-title>div,.function-parameter-playback{display:flex;gap:6px;flex-wrap:wrap}
.function-parameter-binding{display:grid;gap:5px;margin-top:6px}.function-parameter-binding span{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px}.function-parameter-binding small{color:#94a3b8}.function-parameter-binding output{font-weight:700;color:#1d4ed8;font-variant-numeric:tabular-nums}.function-parameter-binding input[type=range]{width:100%;min-height:34px;touch-action:pan-x}.function-parameter-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.function-parameter-metrics div{display:grid;gap:3px;padding:9px;border-radius:9px;background:#f8fafc}.function-parameter-metrics span{font-size:11px;color:#64748b}.function-parameter-metrics strong{font-size:16px;color:#1e3a8a}
.function-parameter-snapshot{display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:5px;padding:6px;border:1px solid #e2e8f0;border-radius:9px}.function-parameter-snapshot.is-selected{border-color:#93c5fd;background:#eff6ff}.function-parameter-snapshot>button:first-child{display:grid;gap:2px;text-align:left;border:0;background:transparent}.function-parameter-snapshot span{font-size:11px;color:#64748b}.function-parameter-table-wrap{overflow:auto}.function-parameter-card table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}.function-parameter-card th,.function-parameter-card td{padding:7px 6px;border-bottom:1px solid #e2e8f0;text-align:right;font-size:12px}.function-parameter-card th:first-child,.function-parameter-card td:first-child{text-align:left}.function-parameter-card tr.is-invalid{color:#b91c1c}.function-parameter-check{display:flex!important;align-items:center;gap:7px!important}.function-parameter-check input{width:auto}.function-parameter-warnings p{margin:0;padding:7px 9px;border-radius:8px;background:#fff7ed;color:#9a3412;font-size:12px}.function-parameter-warnings p.error{background:#fef2f2;color:#b91c1c}.function-parameter-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;border-top:1px solid var(--edugeo-border,#d7dee7);background:#f8fafc}.function-parameter-footer span,.function-parameter-panel .muted{color:#64748b;font-size:12px}
@media(max-width:600px){.function-parameter-panel{left:0;right:0;bottom:0;width:100%;max-height:80vh;border-radius:18px 18px 0 0}.function-parameter-header{padding:10px 12px}.function-parameter-modes{padding:6px}.function-parameter-modes button{min-height:44px;font-size:12px}.function-parameter-scroll{padding:10px}.function-parameter-card{padding:10px}.function-parameter-card button{min-height:42px}.function-parameter-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.function-parameter-snapshot{grid-template-columns:1fr auto}.function-parameter-snapshot>button:last-child{grid-column:2}.function-parameter-footer{padding:8px 10px}}

/* Step 71.4: dynamic secant and average-rate classroom explorer. */
.function-secant-panel{position:fixed;right:24px;bottom:72px;z-index:1230;width:min(460px,calc(100vw - 48px));max-height:min(80vh,760px);display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--edugeo-border,#d7dee7);border-radius:18px;background:rgba(255,255,255,.97);color:var(--edugeo-text,#182026);box-shadow:0 22px 58px rgba(15,23,42,.18);backdrop-filter:blur(16px)}
.function-secant-panel[hidden]{display:none}.function-secant-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-bottom:1px solid var(--edugeo-border,#d7dee7);background:var(--edugeo-panel-muted,#f8fafc)}.function-secant-header>div{display:grid;gap:2px}.function-secant-header span{font-size:12px;color:#64748b}.function-secant-header button{width:36px;height:36px;border:0;border-radius:10px;background:transparent;color:#64748b;font-size:22px;cursor:pointer}.function-secant-header button:hover{background:rgba(37,99,235,.08);color:#2563eb}
.function-secant-modes{display:grid;grid-template-columns:repeat(2,1fr);gap:5px;padding:8px 10px;border-bottom:1px solid var(--edugeo-border,#d7dee7);background:#f8fafc}.function-secant-modes button{min-height:40px;border:1px solid transparent;border-radius:9px;background:transparent;color:#64748b;cursor:pointer}.function-secant-modes button.is-active{border-color:rgba(37,99,235,.25);background:rgba(37,99,235,.1);color:#1d4ed8;font-weight:700}
.function-secant-scroll{min-height:220px;overflow:auto;padding:12px;display:grid;gap:10px}.function-secant-card{display:grid;gap:9px;padding:11px;border:1px solid var(--edugeo-border,#d7dee7);border-radius:12px;background:#fff}.function-secant-card h4{margin:0;font-size:13px}.function-secant-card label{display:grid;gap:5px;color:#64748b;font-size:12px}.function-secant-card input[type=text],.function-secant-card textarea{box-sizing:border-box;width:100%;min-height:38px;padding:7px 9px;border:1px solid var(--edugeo-border,#d7dee7);border-radius:9px;background:#fff;color:#172033}.function-secant-card textarea{min-height:72px;resize:vertical}.function-secant-card button,.function-secant-footer button{min-height:38px;padding:7px 10px;border:1px solid #cbd5e1;border-radius:9px;background:#fff;color:#334155;cursor:pointer}.function-secant-card button:hover,.function-secant-footer button:hover,.function-secant-card button.is-active{border-color:#93b4e7;color:#1d4ed8;background:#eff6ff}.function-secant-card-title{display:flex;align-items:center;justify-content:space-between;gap:8px}.function-secant-source-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.function-secant-actions{display:flex;gap:6px;flex-wrap:wrap}
.function-secant-slider{display:grid;gap:5px;margin-top:6px}.function-secant-slider span{display:flex;justify-content:space-between}.function-secant-slider output{font-weight:700;color:#1d4ed8;font-variant-numeric:tabular-nums}.function-secant-slider input[type=range]{width:100%;min-height:36px;touch-action:pan-x}.function-secant-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.function-secant-metrics div{display:grid;gap:3px;padding:9px;border-radius:9px;background:#f8fafc}.function-secant-metrics div.rate{grid-column:1/-1;background:#eff6ff}.function-secant-metrics span{font-size:11px;color:#64748b}.function-secant-metrics strong{font-size:16px;color:#1e3a8a}.function-secant-formula{margin:0;padding:9px;border-radius:9px;background:#f8fafc;color:#334155;font-size:13px;line-height:1.5;overflow-wrap:anywhere}
.function-secant-record{display:grid;grid-template-columns:1fr auto;gap:6px;align-items:center;padding:6px;border:1px solid #e2e8f0;border-radius:9px}.function-secant-record>button:first-child{display:grid;gap:2px;text-align:left;border:0;background:transparent}.function-secant-record span{font-size:11px;color:#64748b}.function-secant-animation-source{display:flex;gap:16px}.function-secant-animation-source label,.function-secant-check{display:flex!important;align-items:center;gap:6px!important}.function-secant-animation-source input,.function-secant-check input{width:auto}.function-secant-warnings p{margin:0;padding:7px 9px;border-radius:8px;background:#fff7ed;color:#9a3412;font-size:12px}.function-secant-warnings p.error{background:#fef2f2;color:#b91c1c}.function-secant-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;border-top:1px solid var(--edugeo-border,#d7dee7);background:#f8fafc}.function-secant-footer span,.function-secant-panel .muted{color:#64748b;font-size:12px}
@media(max-width:600px){.function-secant-panel{left:0;right:0;bottom:0;width:100%;max-width:100%;max-height:80vh;border-radius:18px 18px 0 0}.function-secant-header{padding:10px 12px}.function-secant-modes{padding:6px}.function-secant-modes button{min-height:44px}.function-secant-scroll{padding:10px}.function-secant-card{padding:10px}.function-secant-card button{min-height:44px}.function-secant-source-grid{grid-template-columns:1fr}.function-secant-actions button{flex:1 1 42%}.function-secant-footer{padding:8px 10px}}

/* Step 73: primary-grade input/output pattern explorer. */
.function-pattern-panel{position:fixed;right:24px;bottom:72px;z-index:1240;width:min(470px,calc(100vw - 48px));max-height:min(80vh,760px);display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--edugeo-border,#d7dee7);border-radius:18px;background:rgba(255,255,255,.97);color:var(--edugeo-text,#182026);box-shadow:0 22px 58px rgba(15,23,42,.18);backdrop-filter:blur(16px)}
.function-pattern-panel[hidden]{display:none}.function-pattern-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-bottom:1px solid var(--edugeo-border,#d7dee7);background:var(--edugeo-panel-muted,#f8fafc)}.function-pattern-header>div{display:grid;gap:2px}.function-pattern-header span{font-size:12px;color:#64748b}.function-pattern-header button{width:44px;height:44px;border:0;border-radius:11px;background:transparent;color:#64748b;font-size:22px;cursor:pointer}.function-pattern-header button:hover{background:rgba(37,99,235,.08);color:#2563eb}
.function-pattern-modes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:5px;padding:8px 12px;border-bottom:1px solid #e2e8f0}.function-pattern-modes button,.function-pattern-table-actions button,.function-pattern-observation button,.function-pattern-footer button,.function-pattern-table-card td button{min-height:44px;border:1px solid #d7dee7;border-radius:10px;padding:7px 10px;background:#fff;color:#334155;cursor:pointer}.function-pattern-modes button.is-active,.function-pattern-observation button.primary{border-color:#2563eb;background:#2563eb;color:#fff;font-weight:700}
.function-pattern-scroll{min-height:180px;overflow:auto;padding:12px;display:grid;gap:12px}.function-pattern-source,.function-pattern-table-card,.function-pattern-observation{padding:11px;border:1px solid #e2e8f0;border-radius:13px;background:#fff}.function-pattern-source p{margin:7px 0 0;padding:9px 10px;border-left:3px solid #2563eb;border-radius:0 9px 9px 0;background:#eff6ff;color:#334155;font-size:13px;line-height:1.55}.function-pattern-table-actions{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:9px}.function-pattern-table-wrap{max-height:300px;overflow:auto}.function-pattern-panel table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}.function-pattern-panel th,.function-pattern-panel td{padding:8px 7px;border-bottom:1px solid #e2e8f0;text-align:center;font-size:13px}.function-pattern-panel th{position:sticky;top:0;background:#f8fafc;color:#64748b}.function-pattern-panel tbody tr{cursor:pointer}.function-pattern-panel tbody tr:hover,.function-pattern-panel tbody tr.is-selected{background:#eff6ff;color:#1d4ed8}.function-pattern-panel td input{width:86px;min-height:40px;box-sizing:border-box;border:1px solid #cbd5e1;border-radius:9px;padding:6px 8px;text-align:center}.function-pattern-feedback{min-height:20px;margin-top:7px;color:#2563eb;font-size:13px}
.function-pattern-observation{display:grid;gap:9px}.function-pattern-observation label{display:grid;gap:5px;color:#64748b;font-size:12px}.function-pattern-observation textarea{width:100%;box-sizing:border-box;min-height:74px;resize:vertical;border:1px solid #cbd5e1;border-radius:10px;padding:8px 10px;color:#182026;background:#fff}.function-pattern-observation .function-pattern-complete{display:flex;align-items:center;gap:7px}.function-pattern-observation .function-pattern-complete input{width:auto}.function-pattern-warnings p{margin:0;padding:7px 9px;border-radius:8px;background:#fff7ed;color:#9a3412;font-size:12px}.function-pattern-warnings p.error{background:#fef2f2;color:#b91c1c}.function-pattern-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;border-top:1px solid #d7dee7;background:#f8fafc}.function-pattern-footer span{color:#64748b;font-size:12px}
@media (max-width: 600px){.function-pattern-panel{left:0;right:0;bottom:0;width:100%;max-width:100%;max-height:82vh;border-radius:18px 18px 0 0}.function-pattern-header{padding:9px 11px}.function-pattern-modes{padding:6px}.function-pattern-modes button{min-height:44px;padding:6px 4px;font-size:12px}.function-pattern-scroll{padding:9px}.function-pattern-source,.function-pattern-table-card,.function-pattern-observation{padding:9px}.function-pattern-table-actions button{flex:1 1 28%;min-height:44px}.function-pattern-panel th,.function-pattern-panel td{padding:8px 5px}.function-pattern-footer{padding:8px 10px}}

/* Step 74: junior-grade function interval observation explorer. */
.function-interval-panel{position:fixed;right:24px;bottom:72px;z-index:1250;width:min(460px,calc(100vw - 48px));max-height:min(80vh,760px);display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--edugeo-border,#d7dee7);border-radius:18px;background:rgba(255,255,255,.97);color:var(--edugeo-text,#182026);box-shadow:0 22px 58px rgba(15,23,42,.18);backdrop-filter:blur(16px)}
.function-interval-panel[hidden]{display:none}.function-interval-panel__header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-bottom:1px solid var(--edugeo-border,#d7dee7);background:#f8fafc}.function-interval-panel__header>div{display:grid;gap:2px}.function-interval-panel__header small{font-size:12px;color:#64748b}.function-interval-panel__header button{width:44px;height:44px;border:0;border-radius:11px;background:transparent;color:#64748b;font-size:22px;cursor:pointer}.function-interval-panel__header button:hover{background:rgba(37,99,235,.08);color:#2563eb}.function-interval-panel__body{min-height:180px;overflow:auto;padding:12px;display:grid;gap:10px}.function-interval-panel__source{margin:0;padding:9px 10px;border-left:3px solid #2563eb;border-radius:0 9px 9px 0;background:#eff6ff;color:#334155;font-size:13px;line-height:1.5}.function-interval-panel__metric{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px;border-radius:10px;background:#f8fafc}.function-interval-panel__metric span{color:#64748b;font-size:12px}.function-interval-panel__metric strong{color:#1e3a8a;font-size:16px}.function-interval-panel__hint{margin:0;color:#64748b;font-size:12px;line-height:1.5}.function-interval-panel__controls{display:flex;align-items:end;gap:7px;flex-wrap:wrap}.function-interval-panel__controls label{display:grid;gap:4px;color:#64748b;font-size:12px}.function-interval-panel__controls input{width:86px;min-height:40px;box-sizing:border-box;border:1px solid #cbd5e1;border-radius:9px;padding:6px 8px}.function-interval-panel__controls button,.function-interval-panel__actions button{min-height:44px;padding:7px 10px;border:1px solid #cbd5e1;border-radius:9px;background:#fff;color:#334155;cursor:pointer}.function-interval-panel__controls button:hover,.function-interval-panel__actions button:hover{border-color:#93b4e7;color:#1d4ed8;background:#eff6ff}.function-interval-panel__table{max-height:230px;overflow:auto;border:1px solid #e2e8f0;border-radius:10px}.function-interval-panel table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}.function-interval-panel th,.function-interval-panel td{padding:7px 8px;border-bottom:1px solid #e2e8f0;text-align:right;font-size:12px}.function-interval-panel th{position:sticky;top:0;background:#f8fafc;color:#64748b}.function-interval-panel__records{display:grid;gap:7px}.function-interval-record{min-height:40px;text-align:left;border:1px solid #e2e8f0;border-radius:9px;background:#fff;color:#334155;padding:7px 9px;cursor:pointer}.function-interval-record[aria-pressed=true]{border-color:#93b4e7;background:#eff6ff;color:#1d4ed8}.function-interval-panel__field{display:grid;gap:5px;color:#64748b;font-size:12px}.function-interval-panel__field textarea{box-sizing:border-box;width:100%;min-height:64px;border:1px solid #cbd5e1;border-radius:9px;padding:7px 9px;resize:vertical}.function-interval-panel__actions{display:flex;gap:7px;flex-wrap:wrap}.function-interval-panel__feedback{min-height:18px;margin:0;color:#2563eb;font-size:13px}.function-interval-panel__body>div:last-child p{margin:0;padding:7px 9px;border-radius:8px;background:#fff7ed;color:#9a3412;font-size:12px}.function-interval-panel__body>div:last-child p.error{background:#fef2f2;color:#b91c1c}
@media (max-width: 600px){.function-interval-panel{left:0;right:0;bottom:0;width:100%;max-width:100%;max-height:82vh;border-radius:18px 18px 0 0}.function-interval-panel__header{padding:9px 11px}.function-interval-panel__body{padding:9px}.function-interval-panel__controls button,.function-interval-panel__actions button{min-height:44px;flex:1 1 30%}.function-interval-panel__table{max-height:210px}}
/* 第75步：高中函数参数与变化率综合探究 */
.function-advanced-panel {
  position: fixed;
  z-index: 35;
  top: 88px;
  right: 20px;
  width: min(380px, calc(100vw - 40px));
  max-height: calc(100vh - 112px);
  overflow: auto;
  padding: 16px;
  border: 1px solid rgba(96, 165, 250, .35);
  border-radius: 18px;
  background: rgba(248, 251, 255, .97);
  box-shadow: 0 20px 60px rgba(30, 64, 175, .18);
  color: #172554;
}
.function-advanced-panel__header,
.function-advanced-panel__toolbar,
.function-advanced-panel__metrics,
.function-advanced-panel__inputs,
.function-advanced-panel__snapshot-actions { display: flex; gap: 8px; align-items: center; }
.function-advanced-panel__header { justify-content: space-between; margin-bottom: 12px; }
.function-advanced-panel__header small { display: block; margin-top: 3px; color: #64748b; }
.function-advanced-panel button { min-height: 36px; border: 1px solid #bfdbfe; border-radius: 10px; padding: 6px 10px; background: #fff; color: #1e3a8a; cursor: pointer; }
.function-advanced-panel button:hover,
.function-advanced-panel button.is-active { border-color: #2563eb; background: #dbeafe; }
.function-advanced-panel__toolbar button { flex: 1; }
.function-advanced-panel__metrics { display: grid; grid-template-columns: repeat(4, 1fr); margin: 12px 0; }
.teaching-template-toolbar{display:flex;align-items:end;justify-content:space-between;gap:12px;padding:10px 14px;border-bottom:1px solid var(--edugeo-border,#d7dee7);background:#f8fafc}.teaching-template-toolbar label{display:grid;gap:4px;color:#64748b;font-size:12px}.teaching-template-toolbar select{min-height:34px;border:1px solid #cbd5e1;border-radius:8px;padding:5px 8px;background:#fff;color:#172033}.teaching-template-toolbar span{color:#64748b;font-size:12px}.teaching-template-confirm{position:absolute;inset:0;z-index:3;display:grid;place-items:center;padding:20px;background:rgba(15,23,42,.22)}.teaching-template-confirm[hidden]{display:none}.teaching-template-confirm-card{width:min(420px,calc(100% - 32px));padding:18px;border:1px solid #d7dee7;border-radius:14px;background:#fff;box-shadow:0 14px 35px rgba(15,23,42,.16)}.teaching-template-confirm-card h3{margin:0 0 8px;font-size:16px;color:#172033}.teaching-template-confirm-card p{margin:0;color:#64748b;font-size:13px;line-height:1.6}.teaching-template-confirm-actions{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap;margin-top:16px}.teaching-template-confirm-actions button{min-height:38px;border:1px solid #cbd5e1;border-radius:9px;padding:7px 12px;background:#fff;color:#334155;cursor:pointer}.teaching-template-confirm-actions button.primary{border-color:#2563eb;background:#2563eb;color:#fff;font-weight:700}@media(max-width:600px){.teaching-template-toolbar{align-items:stretch;flex-direction:column;padding:9px 12px}.teaching-template-toolbar select{min-height:40px}.teaching-template-toolbar span{font-size:11px}.teaching-template-confirm-actions{display:grid;grid-template-columns:1fr}.teaching-template-confirm-actions button{min-height:44px}}
.function-advanced-panel__metrics div { padding: 8px; border-radius: 10px; background: #eff6ff; text-align: center; }
.function-advanced-panel__metrics span { display: block; font-size: 11px; color: #64748b; }
.function-advanced-panel__metrics b { display: block; margin-top: 4px; font-size: 14px; }
.function-advanced-panel section { margin-top: 14px; padding-top: 12px; border-top: 1px solid #e2e8f0; }
.function-advanced-panel h4 { margin: 0 0 8px; font-size: 13px; }
.function-advanced-panel label { display: block; margin: 7px 0; font-size: 12px; color: #475569; }
.function-advanced-panel input,
.function-advanced-panel textarea { box-sizing: border-box; width: 100%; margin-top: 4px; padding: 8px 9px; border: 1px solid #cbd5e1; border-radius: 9px; background: #fff; color: #0f172a; }
.function-advanced-panel__inputs label { flex: 1; }
.function-advanced-panel__inputs button { align-self: end; }
.function-advanced-panel textarea { min-height: 52px; resize: vertical; }
.function-advanced-panel__bindings { display: flex; flex-wrap: wrap; gap: 6px; }
.function-advanced-panel__bindings .muted,
.function-advanced-panel .muted { color: #64748b; font-size: 12px; }
.function-advanced-panel__snapshots { margin: 8px 0 0; padding: 0; list-style: none; }
.function-advanced-panel__snapshots li { display: flex; align-items: center; gap: 6px; margin: 5px 0; }
.function-advanced-panel__snapshots li button:first-child { flex: 1; text-align: left; }
.function-advanced-panel__snapshots span { min-width: 52px; font-size: 12px; text-align: right; color: #475569; }
.function-advanced-panel__warning { margin: 12px 0 0; padding: 9px; border-radius: 9px; background: #fff7ed; color: #9a3412; font-size: 12px; }
.function-advanced-panel__hint { margin: 12px 0 0; color: #64748b; font-size: 12px; line-height: 1.5; }
@media (max-width: 600px) {
  .function-advanced-panel { top: auto; right: 8px; bottom: 8px; left: 8px; width: auto; max-height: min(78vh, 620px); border-radius: 18px 18px 12px 12px; padding: 12px; }
  .function-advanced-panel__metrics { grid-template-columns: repeat(2, 1fr); }
  .function-advanced-panel button { min-height: 42px; }
}

/* Keep click-controlled menus authoritative over the legacy hover behavior. */
.editor-menubar[data-top-menu="true"] .menu-item:not(.is-open) > .menu-popover {
  display: none;
}

@media (max-width: 900px) {
  .editor-app .geometry-toolbar[data-common-toolbar="true"],
  .edu-geo-sdk-editor .geometry-toolbar[data-common-toolbar="true"] {
    min-height: 56px;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 5px 6px;
  }
}

/* Step 78C: left tool and object management, scoped to the existing object panel. */
.object-panel-controls {
  background: #fbfdff;
  border-bottom: 1px solid #e2e8f0;
  display: grid;
  flex: 0 0 auto;
  gap: 8px;
  padding: 9px 9px 7px;
}

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

.object-panel-subheading,
.object-list-summary,
.object-recent-row {
  align-items: center;
  display: flex;
  justify-content: space-between;
  min-width: 0;
}

.object-panel-subheading strong {
  color: #334155;
  font-size: 12px;
}

.object-panel-subheading span,
.object-recent-row > span,
.object-list-summary {
  color: #64748b;
  font-size: 10px;
}

.object-quick-tools {
  display: grid;
  gap: 5px;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.object-quick-tool,
.object-recent-tool {
  background: #ffffff;
  border: 1px solid #d7dee7;
  border-radius: 7px;
  color: #334155;
  cursor: pointer;
  font-size: 11px;
  min-height: 31px;
  overflow: hidden;
  padding: 4px 6px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.object-quick-tool:hover,
.object-quick-tool:focus-visible,
.object-recent-tool:hover,
.object-recent-tool:focus-visible {
  background: #eff6ff;
  border-color: #93c5fd;
  color: #1d4ed8;
  outline: 0;
}

.object-quick-tool.is-active,
.object-recent-tool.is-active {
  background: #2563eb;
  border-color: #2563eb;
  color: #ffffff;
}

.object-recent-row {
  gap: 7px;
  justify-content: flex-start;
}

.object-recent-row > div {
  display: flex;
  gap: 4px;
  min-width: 0;
  overflow: hidden;
}

.object-recent-tool {
  min-height: 26px;
  padding: 3px 7px;
}

.object-search {
  align-items: center;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  min-height: 36px;
  overflow: hidden;
  padding-left: 9px;
}

.object-search:focus-within {
  border-color: #60a5fa;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.12);
}

.object-search > span {
  color: #64748b;
  font-size: 17px;
}

.object-search input {
  background: transparent;
  border: 0;
  color: #1e293b;
  font: inherit;
  min-width: 0;
  outline: 0;
  padding: 7px;
  width: 100%;
}

.object-search button,
.object-list-summary button {
  background: transparent;
  border: 0;
  color: #64748b;
  cursor: pointer;
}

.object-search button {
  align-self: stretch;
  min-width: 34px;
}

.object-list-summary button {
  border-radius: 5px;
  font-size: 10px;
  padding: 3px 5px;
}

.object-search button:hover,
.object-list-summary button:hover {
  background: #eff6ff;
  color: #1d4ed8;
}

.object-panel .object-list {
  padding-top: 6px;
}

.object-panel .object-group-heading {
  background: transparent;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  width: 100%;
}

.object-panel .object-group-heading:hover,
.object-panel .object-group-heading:focus-visible {
  background: #f1f5f9;
  color: #1d4ed8;
  outline: 0;
}

.object-panel .object-group-heading > span:first-child {
  align-items: center;
  display: inline-flex;
  gap: 5px;
}

.object-panel .object-group-heading i {
  color: #94a3b8;
  font-size: 12px;
  font-style: normal;
  width: 10px;
}

.object-panel-mobile-toggle,
.object-panel-backdrop {
  display: none;
}

@media (max-width: 900px) {
  .editor-app .editor-workspace,
  .edu-geo-sdk-editor .editor-workspace {
    position: relative;
  }

  .editor-app .object-panel-mobile-toggle,
  .edu-geo-sdk-editor .object-panel-mobile-toggle {
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid #bfdbfe;
    border-radius: 9px;
    box-shadow: 0 8px 22px rgba(15, 23, 42, 0.13);
    color: #1d4ed8;
    display: block;
    font-weight: 700;
    left: 10px;
    min-height: 44px;
    min-width: 54px;
    padding: 7px 10px;
    position: absolute;
    top: 10px;
    z-index: 26;
  }

  .editor-app.is-object-drawer-open .object-panel-mobile-toggle,
  .edu-geo-sdk-editor.is-object-drawer-open .object-panel-mobile-toggle {
    display: none;
  }

  .editor-app.is-object-drawer-open .object-panel,
  .edu-geo-sdk-editor.is-object-drawer-open .object-panel,
  .editor-app .object-panel.is-mobile-open,
  .edu-geo-sdk-editor .object-panel.is-mobile-open {
    border-right: 1px solid #cbd5e1;
    box-shadow: 18px 0 40px rgba(15, 23, 42, 0.2);
    display: flex;
    inset: 0 auto 0 0;
    max-width: 86vw;
    position: absolute;
    visibility: visible;
    width: 310px;
    z-index: 32;
  }

  .editor-app.is-object-drawer-open .object-panel-backdrop,
  .edu-geo-sdk-editor.is-object-drawer-open .object-panel-backdrop {
    background: rgba(15, 23, 42, 0.2);
    border: 0;
    display: block;
    inset: 0;
    padding: 0;
    position: absolute;
    z-index: 31;
  }

  .object-panel.is-mobile-open .panel-header {
    min-height: 54px;
  }

  .object-panel-controls {
    padding: 8px;
  }

  .object-quick-tool,
  .object-recent-tool,
  .object-group-heading,
  .object-visibility,
  .object-panel.is-mobile-open .panel-toggle,
  .object-panel.is-mobile-open .object-search input,
  .object-panel.is-mobile-open .object-search button,
  .object-panel.is-mobile-open [data-object-groups-toggle] {
    min-height: 44px;
  }

  .object-recent-tool {
    min-width: 54px;
  }

  .object-panel.is-mobile-open .panel-toggle,
  .object-panel.is-mobile-open .object-search button,
  .object-panel.is-mobile-open .object-visibility {
    min-width: 44px;
  }
}

/* Keep Step 78D drawer rules after the legacy responsive rules. */
@media (max-width: 1100px) {
  .editor-app .editor-workspace,
  .edu-geo-sdk-editor .editor-workspace {
    grid-template-columns: 280px minmax(0, 1fr);
  }

  .editor-app.is-left-collapsed .editor-workspace,
  .edu-geo-sdk-editor.is-left-collapsed .editor-workspace {
    grid-template-columns: 0 minmax(0, 1fr);
  }

  .editor-app .property-panel,
  .edu-geo-sdk-editor .property-panel {
    display: none;
  }

  .property-panel-mobile-toggle {
    display: block;
  }

  .editor-app.is-property-drawer-open .property-panel-mobile-toggle,
  .edu-geo-sdk-editor.is-property-drawer-open .property-panel-mobile-toggle,
  .editor-app.is-property-drawer-open .object-panel-mobile-toggle,
  .edu-geo-sdk-editor.is-property-drawer-open .object-panel-mobile-toggle,
  .editor-app.is-object-drawer-open .property-panel-mobile-toggle,
  .edu-geo-sdk-editor.is-object-drawer-open .property-panel-mobile-toggle {
    display: none;
  }

  .editor-app.is-property-drawer-open .property-panel,
  .edu-geo-sdk-editor.is-property-drawer-open .property-panel,
  .editor-app .property-panel.is-mobile-open,
  .edu-geo-sdk-editor .property-panel.is-mobile-open {
    display: flex;
    inset: 0 0 0 auto;
    position: absolute;
    visibility: visible;
  }

  .editor-app.is-property-drawer-open .property-panel-backdrop,
  .edu-geo-sdk-editor.is-property-drawer-open .property-panel-backdrop {
    display: block;
  }
}

@media (max-width: 900px) {
  .editor-app .editor-workspace,
  .edu-geo-sdk-editor .editor-workspace,
  .editor-app.is-left-collapsed .editor-workspace,
  .edu-geo-sdk-editor.is-left-collapsed .editor-workspace {
    grid-template-columns: minmax(0, 1fr);
  }
}
.ggb-spreadsheet-panel {
  background: #fff;
  border: 1px solid #cbd5e1;
  border-radius: 14px;
  bottom: 72px;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.18);
  max-height: min(68vh, 620px);
  max-width: calc(100vw - 32px);
  overflow: hidden;
  position: fixed;
  right: 16px;
  width: min(760px, calc(100vw - 32px));
  z-index: 90;
}

.ggb-spreadsheet-panel[hidden] { display: none; }
.ggb-spreadsheet-panel > header { align-items: center; border-bottom: 1px solid #e2e8f0; display: flex; justify-content: space-between; padding: 10px 14px; }
.ggb-spreadsheet-panel > header > div { display: grid; gap: 2px; }
.ggb-spreadsheet-panel > header span { color: #64748b; font-size: 12px; }
.ggb-spreadsheet-panel > header button { min-height: 36px; min-width: 36px; }
.ggb-spreadsheet-toolbar,
.ggb-spreadsheet-actions { align-items: end; border-bottom: 1px solid #e2e8f0; display: flex; gap: 8px; padding: 8px 10px; }
.ggb-spreadsheet-toolbar label { color: #475569; display: grid; font-size: 11px; gap: 3px; }
.ggb-spreadsheet-toolbar label:first-child { flex: 0 0 76px; }
.ggb-spreadsheet-toolbar .ggb-spreadsheet-formula { flex: 1 1 auto; min-width: 120px; }
.ggb-spreadsheet-toolbar input,
.ggb-spreadsheet-actions select { border: 1px solid #cbd5e1; border-radius: 8px; box-sizing: border-box; min-height: 36px; padding: 6px 9px; width: 100%; }
.ggb-spreadsheet-toolbar button,
.ggb-spreadsheet-actions button { min-height: 36px; white-space: nowrap; }
.ggb-spreadsheet-actions { align-items: center; overflow-x: auto; }
.ggb-spreadsheet-actions [data-sheet-status] { color: #475569; flex: 1 0 160px; font-size: 12px; }
.ggb-spreadsheet-actions [data-sheet-status].is-error { color: #b91c1c; }
.ggb-spreadsheet-grid { display: grid; grid-template-columns: 42px repeat(12, minmax(74px, 1fr)); max-height: calc(min(68vh, 620px) - 164px); overflow: auto; }
.ggb-spreadsheet-grid > strong { align-items: center; background: #f8fafc; border-bottom: 1px solid #e2e8f0; border-right: 1px solid #e2e8f0; display: flex; justify-content: center; min-height: 34px; position: sticky; top: 0; z-index: 2; }
.ggb-spreadsheet-grid > strong:nth-child(13n + 1) { left: 0; position: sticky; z-index: 3; }
.ggb-spreadsheet-grid input { border: 0; border-bottom: 1px solid #e2e8f0; border-right: 1px solid #e2e8f0; box-sizing: border-box; min-height: 34px; min-width: 74px; padding: 4px 7px; }
.ggb-spreadsheet-grid input:focus { box-shadow: inset 0 0 0 2px #2563eb; outline: none; }
.ggb-spreadsheet-grid input[aria-invalid="true"] { box-shadow: inset 0 0 0 2px #dc2626; }
.ggb-spreadsheet-cell { background: #fff; border: 0; border-bottom: 1px solid #e2e8f0; border-radius: 0; border-right: 1px solid #e2e8f0; box-sizing: border-box; color: #1e293b; font: inherit; min-height: 34px; min-width: 74px; overflow: hidden; padding: 4px 7px; text-align: left; text-overflow: ellipsis; white-space: nowrap; }
.ggb-spreadsheet-cell:hover { background: #f8fafc; }
.ggb-spreadsheet-cell.is-selected { background: #eff6ff; box-shadow: inset 0 0 0 1px #60a5fa; }
.ggb-spreadsheet-cell:focus-visible { box-shadow: inset 0 0 0 2px #2563eb; outline: none; position: relative; z-index: 1; }
.ggb-spreadsheet-cell.is-invalid { color: #b91c1c; }

.ggb-data-analysis-panel {
  background: #fff;
  border: 1px solid #cbd5e1;
  border-radius: 14px;
  bottom: 86px;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.18);
  box-sizing: border-box;
  max-height: min(72vh, 680px);
  overflow: auto;
  position: fixed;
  right: 18px;
  width: min(620px, calc(100vw - 36px));
  z-index: 170;
}
.ggb-data-analysis-panel[hidden] { display: none; }
.ggb-data-analysis-panel > header { align-items: center; border-bottom: 1px solid #e2e8f0; display: flex; justify-content: space-between; padding: 10px 14px; }
.ggb-data-analysis-panel > header > div { display: grid; gap: 2px; }
.ggb-data-analysis-panel > header span { color: #64748b; font-size: 12px; }
.ggb-data-analysis-panel > header button { min-height: 36px; min-width: 36px; }
.ggb-data-analysis-toolbar,
.ggb-data-analysis-actions { align-items: end; border-bottom: 1px solid #e2e8f0; display: flex; gap: 8px; overflow-x: auto; padding: 8px 10px; }
.ggb-data-analysis-toolbar label,
.ggb-data-analysis-body label { color: #475569; display: grid; font-size: 12px; gap: 4px; }
.ggb-data-analysis-panel input,
.ggb-data-analysis-panel select { background: #fff; border: 1px solid #cbd5e1; border-radius: 8px; box-sizing: border-box; min-height: 36px; padding: 6px 9px; }
.ggb-data-analysis-toolbar button,
.ggb-data-analysis-actions button { min-height: 36px; white-space: nowrap; }
.ggb-data-analysis-body { display: grid; gap: 12px; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); padding: 12px; }
.ggb-data-analysis-body section { background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 10px; display: grid; gap: 8px; padding: 10px; }
.ggb-data-analysis-body section[hidden] { display: none; }
.ggb-data-analysis-body h3 { font-size: 14px; margin: 0; }
.ggb-data-analysis-body [data-analysis-list-source],
.ggb-data-analysis-body [data-analysis-range-source] { display: grid; gap: 8px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.ggb-data-analysis-body [data-analysis-list-source][hidden],
.ggb-data-analysis-body [data-analysis-range-source][hidden] { display: none; }
.ggb-data-analysis-body [data-analysis-probability-section] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.ggb-data-analysis-body [data-analysis-probability-section] h3,
.ggb-data-analysis-body [data-analysis-probability-section] p { grid-column: 1 / -1; }
.ggb-data-analysis-body [data-analysis-probability-section] p { color: #64748b; font-size: 11px; margin: 0; }

/* Step 124: one EduGeo model rendered through two independent 2D viewports. */
.board-frame.has-secondary-graphics-ui {
  display: block;
}

.board-frame.has-secondary-graphics-ui > .spatial-lab-entry {
  top: 52px;
}

.secondary-graphics-ui {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  height: 100%;
  min-height: 0;
  width: 100%;
}

.secondary-graphics-toolbar {
  align-items: center;
  background: rgba(248, 250, 252, 0.97);
  border-bottom: 1px solid var(--edugeo-color-border, #d9e2ec);
  display: flex;
  gap: 6px;
  min-height: 38px;
  overflow-x: auto;
  padding: 4px 8px;
  scrollbar-width: thin;
  white-space: nowrap;
}

.secondary-graphics-toolbar button {
  background: #fff;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  color: #334155;
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  min-height: 30px;
  padding: 4px 9px;
  touch-action: manipulation;
}

.secondary-graphics-toolbar button:hover,
.secondary-graphics-toolbar button:focus-visible {
  border-color: #60a5fa;
  color: #1d4ed8;
  outline: none;
}

.secondary-graphics-toolbar button[aria-pressed="true"] {
  background: #eff6ff;
  border-color: #3b82f6;
  color: #1d4ed8;
  font-weight: 700;
}

.secondary-graphics-controls {
  align-items: center;
  display: flex;
  gap: 6px;
}

.secondary-graphics-controls[hidden] { display: none; }
.secondary-graphics-divider { background: #cbd5e1; height: 22px; width: 1px; }
.secondary-graphics-toolbar output { color: #64748b; font-size: 11px; margin-left: auto; }

.graphics-view-shell {
  display: grid;
  height: 100%;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
  position: relative;
  width: 100%;
}

.graphics-view-shell[data-graphics-layout="split"] {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.graphics-view-shell[data-graphics-layout="single"],
.graphics-view-shell[data-graphics-layout="tabs"] {
  grid-template-columns: minmax(0, 1fr);
}

.graphics-view-pane {
  background: #fff;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
  position: relative;
}

.graphics-view-pane[hidden] { display: none; }
.graphics-view-shell[data-graphics-layout="split"] .graphics-view-pane + .graphics-view-pane {
  border-left: 1px solid var(--edugeo-color-border, #cbd5e1);
}
.graphics-view-pane.is-active { box-shadow: inset 0 0 0 2px rgba(37, 99, 235, 0.18); }
.graphics-view-pane .editor-board,
.graphics-view-pane .edu-geo-jxg-board,
.secondary-graphics-host { height: 100%; min-height: 0; width: 100%; }

.secondary-graphics-empty {
  align-items: center;
  color: #64748b;
  display: flex;
  inset: 0;
  justify-content: center;
  position: absolute;
  z-index: 0;
}

.property-view-membership {
  border: 1px solid #dbe3ec;
  border-radius: 9px;
  display: grid;
  gap: 7px;
  margin: 4px 0 0;
  padding: 8px 9px 9px;
}
.property-view-membership[hidden] { display: none; }
.property-view-membership legend { color: #475569; font-size: 11px; padding: 0 4px; }
.property-view-membership label { align-items: center; display: flex; gap: 7px; }
.property-view-membership input { min-height: 18px; min-width: 18px; }
.property-view-membership small { color: #64748b; line-height: 1.45; }

@media (max-width: 700px) {
  .secondary-graphics-toolbar { min-height: 44px; padding: 4px 70px; }
  .secondary-graphics-toolbar button { min-height: 36px; }
  .secondary-graphics-toolbar output { display: none; }
  .graphics-view-shell[data-graphics-layout="split"] {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
  }
  .graphics-view-shell[data-graphics-layout="split"] .graphics-view-pane + .graphics-view-pane {
    border-left: 0;
    border-top: 1px solid var(--edugeo-color-border, #cbd5e1);
  }
}

@media (min-width: 701px) and (max-width: 1100px) {
  .secondary-graphics-toolbar { padding-right: 72px; }
}

@media (min-width: 701px) and (max-width: 900px) {
  .secondary-graphics-toolbar { padding-left: 72px; }
}
.ggb-data-analysis-result { grid-column: 1 / -1; }
.ggb-data-analysis-result [data-analysis-result] { color: #0f172a; font-weight: 600; overflow-wrap: anywhere; }
.ggb-data-analysis-result ul { color: #b45309; font-size: 12px; margin: 0; padding-left: 18px; }
.ggb-data-analysis-actions { align-items: center; border-bottom: 0; border-top: 1px solid #e2e8f0; }
.ggb-data-analysis-actions [data-analysis-status] { color: #475569; flex: 1 0 160px; font-size: 12px; }
.ggb-data-analysis-actions [data-analysis-status].is-error { color: #b91c1c; }

@media (max-width: 600px) {
  .ggb-spreadsheet-panel { bottom: 88px; left: 8px; max-height: 72vh; max-width: none; right: 8px; width: auto; }
  .ggb-spreadsheet-toolbar { align-items: stretch; flex-wrap: wrap; }
  .ggb-spreadsheet-toolbar .ggb-spreadsheet-formula { flex-basis: calc(100% - 92px); }
  .ggb-spreadsheet-actions { padding-bottom: 10px; }
  .ggb-spreadsheet-grid { max-height: calc(72vh - 198px); }
  .ggb-data-analysis-panel { bottom: 88px; left: 8px; max-height: 72vh; right: 8px; width: auto; }
  .ggb-data-analysis-toolbar { align-items: stretch; flex-wrap: wrap; }
  .ggb-data-analysis-body { grid-template-columns: 1fr; }
  .ggb-data-analysis-result { grid-column: auto; }
  .ggb-data-analysis-actions { padding-bottom: 10px; }
}

/* Step 120: searchable product surface. It deliberately leaves the command bar uncovered. */
.ggb-product-surface-panel {
  inset: 72px 16px 72px;
  pointer-events: none;
  position: fixed;
  z-index: 1320;
}

.ggb-product-surface-panel[hidden] { display: none; }

.ggb-product-surface-card {
  background: rgba(255, 255, 255, 0.985);
  border: 1px solid var(--edugeo-border, #d7dee7);
  border-radius: 16px;
  box-shadow: 0 22px 60px rgba(15, 23, 42, 0.22);
  display: grid;
  grid-template-rows: auto auto auto auto minmax(0, 1fr);
  height: min(680px, 100%);
  margin: 0 auto;
  max-width: 920px;
  overflow: hidden;
  pointer-events: auto;
}

.ggb-product-surface-card > header {
  align-items: center;
  background: var(--edugeo-panel-muted, #f8fafc);
  border-bottom: 1px solid var(--edugeo-border, #d7dee7);
  display: flex;
  justify-content: space-between;
  padding: 12px 14px;
}

.ggb-product-surface-card > header > div { display: grid; gap: 2px; }
.ggb-product-surface-card > header strong { color: var(--edugeo-text, #172033); font-size: 16px; }
.ggb-product-surface-card > header span,
.ggb-product-surface-summary { color: var(--edugeo-muted, #64748b); font-size: 12px; }

.ggb-product-surface-card > header button {
  background: transparent;
  border: 0;
  border-radius: 9px;
  color: #64748b;
  cursor: pointer;
  font-size: 24px;
  min-height: 40px;
  min-width: 40px;
}

.ggb-product-surface-card > nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 9px 12px 0;
}

.ggb-product-surface-card > nav button,
.ggb-product-surface-item {
  background: #fff;
  border: 1px solid #cbd5e1;
  border-radius: 9px;
  color: #334155;
  cursor: pointer;
  min-height: 40px;
}

.ggb-product-surface-card > nav button { flex: 0 0 auto; padding: 7px 12px; }
.ggb-product-surface-card > nav button.is-active {
  background: #eff6ff;
  border-color: #2563eb;
  color: #1d4ed8;
  font-weight: 700;
}

.ggb-product-surface-search {
  align-items: center;
  display: grid;
  gap: 8px;
  grid-template-columns: auto minmax(0, 1fr);
  padding: 9px 12px;
}

.ggb-product-surface-search span { color: #64748b; font-size: 12px; }
.ggb-product-surface-search input {
  background: #fff;
  border: 1px solid #cbd5e1;
  border-radius: 9px;
  box-sizing: border-box;
  color: #172033;
  min-height: 42px;
  padding: 7px 10px;
  width: 100%;
}

.ggb-product-surface-search input:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
  outline: none;
}

.ggb-product-surface-summary { padding: 0 12px 8px; }
.ggb-product-surface-results {
  align-content: start;
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  overflow: auto;
  padding: 0 12px 14px;
}

.ggb-product-surface-item {
  display: grid;
  gap: 3px;
  padding: 9px 10px;
  text-align: left;
}

.ggb-product-surface-item:hover,
.ggb-product-surface-item:focus-visible {
  background: #eff6ff;
  border-color: #93b4e7;
  color: #1d4ed8;
  outline: none;
}

.ggb-product-surface-item strong { font-size: 13px; }
.ggb-product-surface-item small { color: #64748b; font-size: 11px; overflow-wrap: anywhere; }
.ggb-product-surface-empty { color: #64748b; grid-column: 1 / -1; margin: 22px; text-align: center; }

@media (max-width: 820px) {
  .ggb-product-surface-panel { inset: 62px 8px 72px; }
  .ggb-product-surface-card { border-radius: 13px; height: 100%; }
  .ggb-product-surface-results { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 480px) {
  .ggb-product-surface-panel { inset: 58px 6px 68px; }
  .ggb-product-surface-results { grid-template-columns: 1fr; }
  .ggb-product-surface-item,
  .ggb-product-surface-card > nav button,
  .ggb-product-surface-card > header button { min-height: 44px; }
}