/* client/react/index.css */
@tailwind base;
@tailwind components;
@tailwind utilities;

/* node_modules/reactflow/dist/style.css */
.react-flow {
  direction: ltr;
}
.react-flow__container {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}
.react-flow__pane {
  z-index: 1;
  cursor: -webkit-grab;
  cursor: grab;
}
.react-flow__pane.selection {
  cursor: pointer;
}
.react-flow__pane.dragging {
  cursor: -webkit-grabbing;
  cursor: grabbing;
}
.react-flow__viewport {
  transform-origin: 0 0;
  z-index: 2;
  pointer-events: none;
}
.react-flow__renderer {
  z-index: 4;
}
.react-flow__selection {
  z-index: 6;
}
.react-flow__nodesselection-rect:focus,
.react-flow__nodesselection-rect:focus-visible {
  outline: none;
}
.react-flow .react-flow__edges {
  pointer-events: none;
  overflow: visible;
}
.react-flow__edge-path,
.react-flow__connection-path {
  stroke: #b1b1b7;
  stroke-width: 1;
  fill: none;
}
.react-flow__edge {
  pointer-events: visibleStroke;
  cursor: pointer;
}
.react-flow__edge.animated path {
  stroke-dasharray: 5;
  -webkit-animation: dashdraw 0.5s linear infinite;
  animation: dashdraw 0.5s linear infinite;
}
.react-flow__edge.animated path.react-flow__edge-interaction {
  stroke-dasharray: none;
  -webkit-animation: none;
  animation: none;
}
.react-flow__edge.inactive {
  pointer-events: none;
}
.react-flow__edge.selected,
.react-flow__edge:focus,
.react-flow__edge:focus-visible {
  outline: none;
}
.react-flow__edge.selected .react-flow__edge-path,
.react-flow__edge:focus .react-flow__edge-path,
.react-flow__edge:focus-visible .react-flow__edge-path {
  stroke: #555;
}
.react-flow__edge-textwrapper {
  pointer-events: all;
}
.react-flow__edge-textbg {
  fill: white;
}
.react-flow__edge .react-flow__edge-text {
  pointer-events: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}
.react-flow__connection {
  pointer-events: none;
}
.react-flow__connection .animated {
  stroke-dasharray: 5;
  -webkit-animation: dashdraw 0.5s linear infinite;
  animation: dashdraw 0.5s linear infinite;
}
.react-flow__connectionline {
  z-index: 1001;
}
.react-flow__nodes {
  pointer-events: none;
  transform-origin: 0 0;
}
.react-flow__node {
  position: absolute;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  pointer-events: all;
  transform-origin: 0 0;
  box-sizing: border-box;
  cursor: -webkit-grab;
  cursor: grab;
}
.react-flow__node.dragging {
  cursor: -webkit-grabbing;
  cursor: grabbing;
}
.react-flow__nodesselection {
  z-index: 3;
  transform-origin: left top;
  pointer-events: none;
}
.react-flow__nodesselection-rect {
  position: absolute;
  pointer-events: all;
  cursor: -webkit-grab;
  cursor: grab;
}
.react-flow__handle {
  position: absolute;
  pointer-events: none;
  min-width: 5px;
  min-height: 5px;
  width: 6px;
  height: 6px;
  background: #1a192b;
  border: 1px solid white;
  border-radius: 100%;
}
.react-flow__handle.connectionindicator {
  pointer-events: all;
  cursor: crosshair;
}
.react-flow__handle-bottom {
  top: auto;
  left: 50%;
  bottom: -4px;
  transform: translate(-50%, 0);
}
.react-flow__handle-top {
  left: 50%;
  top: -4px;
  transform: translate(-50%, 0);
}
.react-flow__handle-left {
  top: 50%;
  left: -4px;
  transform: translate(0, -50%);
}
.react-flow__handle-right {
  right: -4px;
  top: 50%;
  transform: translate(0, -50%);
}
.react-flow__edgeupdater {
  cursor: move;
  pointer-events: all;
}
.react-flow__panel {
  position: absolute;
  z-index: 5;
  margin: 15px;
}
.react-flow__panel.top {
  top: 0;
}
.react-flow__panel.bottom {
  bottom: 0;
}
.react-flow__panel.left {
  left: 0;
}
.react-flow__panel.right {
  right: 0;
}
.react-flow__panel.center {
  left: 50%;
  transform: translateX(-50%);
}
.react-flow__attribution {
  font-size: 10px;
  background: rgba(255, 255, 255, 0.5);
  padding: 2px 3px;
  margin: 0;
}
.react-flow__attribution a {
  text-decoration: none;
  color: #999;
}
@-webkit-keyframes dashdraw {
  from {
    stroke-dashoffset: 10;
  }
}
@keyframes dashdraw {
  from {
    stroke-dashoffset: 10;
  }
}
.react-flow__edgelabel-renderer {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}
.react-flow__edge.updating .react-flow__edge-path {
  stroke: #777;
}
.react-flow__edge-text {
  font-size: 10px;
}
.react-flow__node.selectable:focus,
.react-flow__node.selectable:focus-visible {
  outline: none;
}
.react-flow__node-default,
.react-flow__node-input,
.react-flow__node-output,
.react-flow__node-group {
  padding: 10px;
  border-radius: 3px;
  width: 150px;
  font-size: 12px;
  color: #222;
  text-align: center;
  border-width: 1px;
  border-style: solid;
  border-color: #1a192b;
  background-color: white;
}
.react-flow__node-default.selectable:hover,
.react-flow__node-input.selectable:hover,
.react-flow__node-output.selectable:hover,
.react-flow__node-group.selectable:hover {
  box-shadow: 0 1px 4px 1px rgba(0, 0, 0, 0.08);
}
.react-flow__node-default.selectable.selected,
.react-flow__node-default.selectable:focus,
.react-flow__node-default.selectable:focus-visible,
.react-flow__node-input.selectable.selected,
.react-flow__node-input.selectable:focus,
.react-flow__node-input.selectable:focus-visible,
.react-flow__node-output.selectable.selected,
.react-flow__node-output.selectable:focus,
.react-flow__node-output.selectable:focus-visible,
.react-flow__node-group.selectable.selected,
.react-flow__node-group.selectable:focus,
.react-flow__node-group.selectable:focus-visible {
  box-shadow: 0 0 0 0.5px #1a192b;
}
.react-flow__node-group {
  background-color: rgba(240, 240, 240, 0.25);
}
.react-flow__nodesselection-rect,
.react-flow__selection {
  background: rgba(0, 89, 220, 0.08);
  border: 1px dotted rgba(0, 89, 220, 0.8);
}
.react-flow__nodesselection-rect:focus,
.react-flow__nodesselection-rect:focus-visible,
.react-flow__selection:focus,
.react-flow__selection:focus-visible {
  outline: none;
}
.react-flow__controls {
  box-shadow: 0 0 2px 1px rgba(0, 0, 0, 0.08);
}
.react-flow__controls-button {
  border: none;
  background: #fefefe;
  border-bottom: 1px solid #eee;
  box-sizing: content-box;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 16px;
  height: 16px;
  cursor: pointer;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  padding: 5px;
}
.react-flow__controls-button:hover {
  background: #f4f4f4;
}
.react-flow__controls-button svg {
  width: 100%;
  max-width: 12px;
  max-height: 12px;
}
.react-flow__controls-button:disabled {
  pointer-events: none;
}
.react-flow__controls-button:disabled svg {
  fill-opacity: 0.4;
}
.react-flow__minimap {
  background-color: #fff;
}
.react-flow__minimap svg {
  display: block;
}
.react-flow__resize-control {
  position: absolute;
}
.react-flow__resize-control.left,
.react-flow__resize-control.right {
  cursor: ew-resize;
}
.react-flow__resize-control.top,
.react-flow__resize-control.bottom {
  cursor: ns-resize;
}
.react-flow__resize-control.top.left,
.react-flow__resize-control.bottom.right {
  cursor: nwse-resize;
}
.react-flow__resize-control.bottom.left,
.react-flow__resize-control.top.right {
  cursor: nesw-resize;
}
.react-flow__resize-control.handle {
  width: 4px;
  height: 4px;
  border: 1px solid #fff;
  border-radius: 1px;
  background-color: #3367d9;
  transform: translate(-50%, -50%);
}
.react-flow__resize-control.handle.left {
  left: 0;
  top: 50%;
}
.react-flow__resize-control.handle.right {
  left: 100%;
  top: 50%;
}
.react-flow__resize-control.handle.top {
  left: 50%;
  top: 0;
}
.react-flow__resize-control.handle.bottom {
  left: 50%;
  top: 100%;
}
.react-flow__resize-control.handle.top.left {
  left: 0;
}
.react-flow__resize-control.handle.bottom.left {
  left: 0;
}
.react-flow__resize-control.handle.top.right {
  left: 100%;
}
.react-flow__resize-control.handle.bottom.right {
  left: 100%;
}
.react-flow__resize-control.line {
  border-color: #3367d9;
  border-width: 0;
  border-style: solid;
}
.react-flow__resize-control.line.left,
.react-flow__resize-control.line.right {
  width: 1px;
  transform: translate(-50%, 0);
  top: 0;
  height: 100%;
}
.react-flow__resize-control.line.left {
  left: 0;
  border-left-width: 1px;
}
.react-flow__resize-control.line.right {
  left: 100%;
  border-right-width: 1px;
}
.react-flow__resize-control.line.top,
.react-flow__resize-control.line.bottom {
  height: 1px;
  transform: translate(0, -50%);
  left: 0;
  width: 100%;
}
.react-flow__resize-control.line.top {
  top: 0;
  border-top-width: 1px;
}
.react-flow__resize-control.line.bottom {
  border-bottom-width: 1px;
  top: 100%;
}

/* client/react/components/whiteboard/whiteboard.css */
.wb-room {
  font-family: inherit;
  border: 1px solid #ccd2dc;
  border-radius: 10px;
  padding: 16px;
  background: #fff;
  max-width: 900px;
  margin: 1.5em auto;
  color: #234;
}
.wb-choose {
  text-align: center;
  padding: 24px 0 32px;
}
.wb-choose h3 {
  margin: 0 0 6px;
}
.wb-choose p {
  color: #667;
  margin: 0 0 18px;
}
.wb-choose-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
}
.wb-primary {
  border: none;
  background: #1a73e8;
  color: #fff;
  border-radius: 8px;
  padding: 10px 20px;
  font-size: 15px;
  cursor: pointer;
}
.wb-primary:hover {
  background: #1660c4;
}
.wb-primary:disabled {
  background: #9db8d8;
  cursor: default;
}
.wb-student-btn {
  background: #2e9e44;
}
.wb-student-btn:hover {
  background: #268238;
}
.wb-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  gap: 10px;
}
.wb-role-tag {
  background: #1a73e8;
  color: #fff;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 11px;
  margin-right: 10px;
}
.wb-student-tag {
  background: #2e9e44;
}
.wb-code {
  font-size: 14px;
  color: #445;
}
.wb-code b {
  letter-spacing: .12em;
  font-size: 16px;
}
.wb-link {
  border: none;
  background: none;
  color: #1a73e8;
  cursor: pointer;
  font-size: 13px;
}
.wb-link:hover {
  text-decoration: underline;
}
.wb-prompt {
  background: #eef4fd;
  border: 1px solid #d5e3f8;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 14.5px;
  margin: 0 0 10px;
}
.wb-error {
  color: #c62828;
  font-size: 13.5px;
  margin: 8px 0;
}
.wb-muted {
  color: #778;
  font-size: 13.5px;
}
.wb-sent {
  color: #2e7d32;
  font-size: 13.5px;
}
.wb-setup-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #334;
  margin: 14px 0 16px;
}
.wb-problem {
  display: block;
  width: 100%;
  box-sizing: border-box;
  margin-top: 6px;
  padding: 10px 12px;
  font-size: 15px;
  font-weight: 400;
  border: 1px solid #ccd2dc;
  border-radius: 8px;
  resize: vertical;
  font-family: inherit;
}
.wb-prompt-edit {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 0 0 10px;
}
.wb-prompt-edit .wb-problem {
  flex: 1;
}
.wb-edit-btn {
  margin-left: 10px;
  font-size: 12px;
}
.wb-join label {
  display: block;
  font-size: 13.5px;
  color: #445;
  margin: 12px 0;
}
.wb-join input {
  display: block;
  margin-top: 4px;
  padding: 8px 10px;
  font-size: 15px;
  border: 1px solid #ccd2dc;
  border-radius: 6px;
  width: 220px;
}
.wb-board {
  display: inline-block;
  max-width: 100%;
}
.wb-tools {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 0;
  flex-wrap: wrap;
}
.wb-tool {
  width: 32px;
  height: 32px;
  border: 1px solid #dde2ea;
  background: #f7f8fa;
  border-radius: 6px;
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
}
.wb-tool.active {
  background: #d7e6fb;
  border-color: #9fc3ef;
}
.wb-tool:disabled {
  opacity: .4;
  cursor: default;
}
.wb-color {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, .25);
  cursor: pointer;
  padding: 0;
}
.wb-color.active {
  box-shadow: 0 0 0 2px #fff, 0 0 0 4px #1a73e8;
}
.wb-sep {
  width: 1px;
  height: 22px;
  background: #dde2ea;
  margin: 0 4px;
}
.wb-canvas {
  border: 1px solid #ccd2dc;
  border-radius: 8px;
  max-width: 100%;
  height: auto;
  display: block;
  background: #fff;
}
.wb-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 12px;
}
.wb-card {
  margin: 0;
  border: 1px solid #dde2ea;
  border-radius: 8px;
  overflow: hidden;
  cursor: zoom-in;
  background: #fff;
}
.wb-card:hover {
  border-color: #9fc3ef;
  box-shadow: 0 2px 8px rgba(31, 84, 158, .15);
}
.wb-card img {
  width: 100%;
  display: block;
}
.wb-card figcaption {
  display: flex;
  justify-content: space-between;
  padding: 6px 10px;
  font-size: 13px;
  font-weight: 600;
  background: #f7f8fa;
}
.wb-time {
  color: #99a;
  font-weight: 400;
}
.wb-zoom {
  position: fixed;
  inset: 0;
  background: rgba(20, 30, 45, .75);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}
.wb-zoom figure {
  margin: 0;
  max-width: 90vw;
}
.wb-zoom img {
  max-width: 90vw;
  max-height: 82vh;
  border-radius: 8px;
  background: #fff;
}
.wb-zoom figcaption {
  color: #fff;
  text-align: center;
  padding-top: 10px;
  font-size: 16px;
}

/* node_modules/katex/dist/katex.min.css */
@font-face {
  font-display: block;
  font-family: KaTeX_AMS;
  font-style: normal;
  font-weight: 400;
  src:
    url("/KaTeX_AMS-Regular-U6PRYMIZ.woff2") format("woff2"),
    url("/KaTeX_AMS-Regular-CYEKBG2K.woff") format("woff"),
    url("/KaTeX_AMS-Regular-JKX5W2C4.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: KaTeX_Caligraphic;
  font-style: normal;
  font-weight: 700;
  src:
    url("/KaTeX_Caligraphic-Bold-5QL5CMTE.woff2") format("woff2"),
    url("/KaTeX_Caligraphic-Bold-WZ3QSGD3.woff") format("woff"),
    url("/KaTeX_Caligraphic-Bold-ZTS3R3HK.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: KaTeX_Caligraphic;
  font-style: normal;
  font-weight: 400;
  src:
    url("/KaTeX_Caligraphic-Regular-KX5MEWCF.woff2") format("woff2"),
    url("/KaTeX_Caligraphic-Regular-3LKEU76G.woff") format("woff"),
    url("/KaTeX_Caligraphic-Regular-A7XRTZ5Q.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: KaTeX_Fraktur;
  font-style: normal;
  font-weight: 700;
  src:
    url("/KaTeX_Fraktur-Bold-2QVFK6NQ.woff2") format("woff2"),
    url("/KaTeX_Fraktur-Bold-T4SWXBMT.woff") format("woff"),
    url("/KaTeX_Fraktur-Bold-WGHVTYOR.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: KaTeX_Fraktur;
  font-style: normal;
  font-weight: 400;
  src:
    url("/KaTeX_Fraktur-Regular-2PEIFJSJ.woff2") format("woff2"),
    url("/KaTeX_Fraktur-Regular-PQMHCIK6.woff") format("woff"),
    url("/KaTeX_Fraktur-Regular-5U4OPH2X.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: KaTeX_Main;
  font-style: normal;
  font-weight: 700;
  src:
    url("/KaTeX_Main-Bold-YP5VVQRP.woff2") format("woff2"),
    url("/KaTeX_Main-Bold-2GA4IZIN.woff") format("woff"),
    url("/KaTeX_Main-Bold-W5FBVCZM.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: KaTeX_Main;
  font-style: italic;
  font-weight: 700;
  src:
    url("/KaTeX_Main-BoldItalic-N4V3DX7S.woff2") format("woff2"),
    url("/KaTeX_Main-BoldItalic-4P4C7HJH.woff") format("woff"),
    url("/KaTeX_Main-BoldItalic-ODMLBJJQ.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: KaTeX_Main;
  font-style: italic;
  font-weight: 400;
  src:
    url("/KaTeX_Main-Italic-RELBIK7M.woff2") format("woff2"),
    url("/KaTeX_Main-Italic-SASNQFN2.woff") format("woff"),
    url("/KaTeX_Main-Italic-I43T2HSR.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: KaTeX_Main;
  font-style: normal;
  font-weight: 400;
  src:
    url("/KaTeX_Main-Regular-ARRPAO67.woff2") format("woff2"),
    url("/KaTeX_Main-Regular-P5I74A2A.woff") format("woff"),
    url("/KaTeX_Main-Regular-W74P5G27.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: KaTeX_Math;
  font-style: italic;
  font-weight: 700;
  src:
    url("/KaTeX_Math-BoldItalic-K4WTGH3J.woff2") format("woff2"),
    url("/KaTeX_Math-BoldItalic-6EBV3DK5.woff") format("woff"),
    url("/KaTeX_Math-BoldItalic-VB447A4D.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: KaTeX_Math;
  font-style: italic;
  font-weight: 400;
  src:
    url("/KaTeX_Math-Italic-6KGCHLFN.woff2") format("woff2"),
    url("/KaTeX_Math-Italic-KKK3USB2.woff") format("woff"),
    url("/KaTeX_Math-Italic-SON4MRCA.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: "KaTeX_SansSerif";
  font-style: normal;
  font-weight: 700;
  src:
    url("/KaTeX_SansSerif-Bold-RRNVJFFW.woff2") format("woff2"),
    url("/KaTeX_SansSerif-Bold-X5M5EMOD.woff") format("woff"),
    url("/KaTeX_SansSerif-Bold-STQ6RXC7.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: "KaTeX_SansSerif";
  font-style: italic;
  font-weight: 400;
  src:
    url("/KaTeX_SansSerif-Italic-HMPFTM52.woff2") format("woff2"),
    url("/KaTeX_SansSerif-Italic-PSN4QKYX.woff") format("woff"),
    url("/KaTeX_SansSerif-Italic-WTBAZBGY.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: "KaTeX_SansSerif";
  font-style: normal;
  font-weight: 400;
  src:
    url("/KaTeX_SansSerif-Regular-XIQ62X4E.woff2") format("woff2"),
    url("/KaTeX_SansSerif-Regular-OQCII6EP.woff") format("woff"),
    url("/KaTeX_SansSerif-Regular-2TL3USAE.ttf") format("truetype");
}
@font-face {
  font-display: block;
  font-family: KaTeX_Script;
  font-style: normal;
  font-weight: 400;
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.katex .nulldelimiter {
  display: inline-block;
  width: .12em;
}
.katex .delimcenter,
.katex .op-symbol {
  position: relative;
}
.katex .op-symbol.small-op {
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}
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.katex .accent > .vlist-t,
.katex .op-limits > .vlist-t {
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.katex .accent .accent-body {
  position: relative;
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.katex .accent .accent-body:not(.accent-full) {
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}
.katex .overlay {
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}
.katex .mtable .vertical-separator {
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.katex svg path {
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.katex .stretchy {
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}
.katex .stretchy:after,
.katex .stretchy:before {
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.katex .hide-tail {
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}
.katex .brace-right {
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}
.katex .x-arrow-pad {
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}
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}
.katex .mover,
.katex .munder,
.katex .x-arrow {
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}
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}
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.katex .fcolorbox {
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}
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}
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}
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  right: calc(50% + .3em);
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}
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  display: inline-block;
  left: calc(50% + .3em);
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  text-align: right;
}
.katex-display {
  display: block;
  margin: 1em 0;
  text-align: center;
}
.katex-display > .katex {
  display: block;
  text-align: center;
  white-space: nowrap;
}
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  display: block;
  position: relative;
}
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  position: absolute;
  right: 0;
}
.katex-display.leqno > .katex > .katex-html > .tag {
  left: 0;
  right: auto;
}
.katex-display.fleqn > .katex {
  padding-left: 2em;
  text-align: left;
}
body {
  counter-reset: katexEqnNo mmlEqnNo;
}

/* client/react/components/aiboard/aiboard.css */
.aib {
  --board: #2a3a31;
  --frame: #6b4a2f;
  --panel: #223029;
  --panel-2: #1b2620;
  --chalk: #e8efe9;
  --chalk-dim: #a9bcb0;
  --line: rgba(255, 255, 255, .14);
  font-family: inherit;
  border: 8px solid var(--frame);
  border-radius: 10px;
  padding: 10px;
  background: var(--panel);
  margin: 1.5em auto;
  color: var(--chalk);
  box-shadow: 0 8px 30px rgba(0, 0, 0, .35);
}
.aib-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}
.aib-modes {
  display: flex;
  gap: 4px;
}
.aib-mode {
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--chalk-dim);
  border-radius: 7px;
  padding: 6px 11px;
  font-size: 13.5px;
  cursor: pointer;
}
.aib-mode.on {
  background: #2f4a3c;
  border-color: #5b8a72;
  color: #d8f3e4;
}
.aib-question {
  flex: 1;
  min-width: 200px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  font-size: 14px;
  background: var(--panel-2);
  color: var(--chalk);
}
.aib-question::placeholder {
  color: var(--chalk-dim);
}
.aib-interpret {
  border: none;
  background:
    linear-gradient(
      90deg,
      #a06bff,
      #4aa3ff);
  color: #fff;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.aib-interpret:disabled {
  opacity: .6;
  cursor: default;
}
.aib-status {
  font-size: 13px;
  color: var(--chalk-dim);
}
.aib-tools {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-wrap: wrap;
  padding: 4px 0 8px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 10px;
}
.aib-tool {
  height: 30px;
  padding: 0 8px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--chalk);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}
.aib-tool.active {
  background: #2f4a3c;
  border-color: #5b8a72;
}
.aib-tool:disabled {
  opacity: .4;
  cursor: default;
}
.aib-color {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .35);
  cursor: pointer;
  padding: 0;
}
.aib-color.active {
  box-shadow: 0 0 0 2px var(--panel), 0 0 0 4px #d8f3e4;
}
.aib-sep {
  width: 1px;
  height: 22px;
  background: var(--line);
  margin: 0 4px;
}
.aib-check {
  font-size: 12.5px;
  color: var(--chalk-dim);
  display: inline-flex;
  align-items: center;
  gap: 3px;
  cursor: pointer;
}
.aib-prompt {
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 14.5px;
  margin: 0 0 10px;
  color: var(--chalk);
}
.aib-stage {
  position: relative;
  max-width: 100%;
  border-radius: 6px;
  overflow: hidden;
  background:
    radial-gradient(
      circle at 30% 20%,
      rgba(255, 255, 255, .05),
      transparent 60%),
    radial-gradient(
      circle at 75% 80%,
      rgba(255, 255, 255, .04),
      transparent 55%),
    var(--board);
  box-shadow: inset 0 0 60px rgba(0, 0, 0, .35);
}
.aib-canvas {
  display: block;
  max-width: 100%;
}
.aib-stage .canvas-container {
  position: absolute !important;
  inset: 0;
}
.aib-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 5;
}
.aib-solid3d {
  touch-action: none;
}
.aib-jxg {
  border-radius: 4px;
  background: transparent;
}
.aib-jxg text,
.aib-jxg .JXGtext {
  font-family: inherit;
}
.aib-jxg .JXG_navigation {
  font-size: 15px;
  color: var(--chalk-dim);
}
.aib-jxg .JXG_navigation_button {
  cursor: pointer;
  padding: 0 3px;
  opacity: .7;
}
.aib-jxg .JXG_navigation_button:hover {
  opacity: 1;
}
.aib-card {
  position: absolute;
  pointer-events: auto;
  background: rgba(24, 34, 28, .94);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .45);
  overflow: hidden;
  min-width: 150px;
  max-width: 440px;
  color: var(--chalk);
}
.aib-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 6px 5px 11px;
  background: rgba(255, 255, 255, .06);
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  font-weight: 600;
  cursor: move;
  user-select: none;
}
.aib-card-x {
  border: none;
  background: none;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  color: var(--chalk-dim);
  padding: 0 4px;
}
.aib-card-x:hover {
  color: #ff9fb6;
}
.aib-card-body {
  padding: 8px 10px 10px;
}
.aib-plot-fns {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  font-family: "Menlo", monospace;
  padding-top: 4px;
}
.aib-plot-error {
  color: #ff9fb6;
  font-size: 13px;
  padding: 20px;
  width: 320px;
}
.aib-answer {
  max-width: 380px;
}
.aib-answer-main {
  font-size: 20px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  color: #fff;
  overflow-x: auto;
}
.aib-answer-text {
  font-size: 14px;
  margin: 8px 0 4px;
  color: var(--chalk);
}
.aib-steps {
  margin: 6px 0 0;
  padding-left: 20px;
  font-size: 13.5px;
  color: var(--chalk-dim);
}
.aib-steps li {
  margin: 3px 0;
}
.aib-shape-svg {
  width: 200px;
  height: 180px;
  display: block;
}
.aib-shape-label {
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  text-transform: capitalize;
  color: var(--chalk);
}

/* node_modules/@xyflow/react/dist/style.css */
.react-flow {
  direction: ltr;
  --xy-edge-stroke-default: #b1b1b7;
  --xy-edge-stroke-width-default: 1;
  --xy-edge-stroke-selected-default: #555;
  --xy-connectionline-stroke-default: #b1b1b7;
  --xy-connectionline-stroke-width-default: 1;
  --xy-attribution-background-color-default: rgba(255, 255, 255, 0.5);
  --xy-minimap-background-color-default: #fff;
  --xy-minimap-mask-background-color-default: rgba(240, 240, 240, 0.6);
  --xy-minimap-mask-stroke-color-default: transparent;
  --xy-minimap-mask-stroke-width-default: 1;
  --xy-minimap-node-background-color-default: #e2e2e2;
  --xy-minimap-node-stroke-color-default: transparent;
  --xy-minimap-node-stroke-width-default: 2;
  --xy-background-color-default: transparent;
  --xy-background-pattern-dots-color-default: #91919a;
  --xy-background-pattern-lines-color-default: #eee;
  --xy-background-pattern-cross-color-default: #e2e2e2;
  background-color: var(--xy-background-color, var(--xy-background-color-default));
  --xy-node-color-default: inherit;
  --xy-node-border-default: 1px solid #1a192b;
  --xy-node-background-color-default: #fff;
  --xy-node-group-background-color-default: rgba(240, 240, 240, 0.25);
  --xy-node-boxshadow-hover-default: 0 1px 4px 1px rgba(0, 0, 0, 0.08);
  --xy-node-boxshadow-selected-default: 0 0 0 0.5px #1a192b;
  --xy-node-border-radius-default: 3px;
  --xy-handle-background-color-default: #1a192b;
  --xy-handle-border-color-default: #fff;
  --xy-selection-background-color-default: rgba(0, 89, 220, 0.08);
  --xy-selection-border-default: 1px dotted rgba(0, 89, 220, 0.8);
  --xy-controls-button-background-color-default: #fefefe;
  --xy-controls-button-background-color-hover-default: #f4f4f4;
  --xy-controls-button-color-default: inherit;
  --xy-controls-button-color-hover-default: inherit;
  --xy-controls-button-border-color-default: #eee;
  --xy-controls-box-shadow-default: 0 0 2px 1px rgba(0, 0, 0, 0.08);
  --xy-edge-label-background-color-default: #ffffff;
  --xy-edge-label-color-default: inherit;
  --xy-resize-background-color-default: #3367d9;
}
.react-flow.dark {
  --xy-edge-stroke-default: #3e3e3e;
  --xy-edge-stroke-width-default: 1;
  --xy-edge-stroke-selected-default: #727272;
  --xy-connectionline-stroke-default: #b1b1b7;
  --xy-connectionline-stroke-width-default: 1;
  --xy-attribution-background-color-default: rgba(150, 150, 150, 0.25);
  --xy-minimap-background-color-default: #141414;
  --xy-minimap-mask-background-color-default: rgba(60, 60, 60, 0.6);
  --xy-minimap-mask-stroke-color-default: transparent;
  --xy-minimap-mask-stroke-width-default: 1;
  --xy-minimap-node-background-color-default: #2b2b2b;
  --xy-minimap-node-stroke-color-default: transparent;
  --xy-minimap-node-stroke-width-default: 2;
  --xy-background-color-default: #141414;
  --xy-background-pattern-dots-color-default: #777;
  --xy-background-pattern-lines-color-default: #777;
  --xy-background-pattern-cross-color-default: #777;
  --xy-node-color-default: #f8f8f8;
  --xy-node-border-default: 1px solid #3c3c3c;
  --xy-node-background-color-default: #1e1e1e;
  --xy-node-group-background-color-default: rgba(240, 240, 240, 0.25);
  --xy-node-boxshadow-hover-default: 0 1px 4px 1px rgba(255, 255, 255, 0.08);
  --xy-node-boxshadow-selected-default: 0 0 0 0.5px #999;
  --xy-handle-background-color-default: #bebebe;
  --xy-handle-border-color-default: #1e1e1e;
  --xy-selection-background-color-default: rgba(200, 200, 220, 0.08);
  --xy-selection-border-default: 1px dotted rgba(200, 200, 220, 0.8);
  --xy-controls-button-background-color-default: #2b2b2b;
  --xy-controls-button-background-color-hover-default: #3e3e3e;
  --xy-controls-button-color-default: #f8f8f8;
  --xy-controls-button-color-hover-default: #fff;
  --xy-controls-button-border-color-default: #5b5b5b;
  --xy-controls-box-shadow-default: 0 0 2px 1px rgba(0, 0, 0, 0.08);
  --xy-edge-label-background-color-default: #141414;
  --xy-edge-label-color-default: #f8f8f8;
}
.react-flow__background {
  background-color: var(--xy-background-color-props, var(--xy-background-color, var(--xy-background-color-default)));
  pointer-events: none;
  z-index: -1;
}
.react-flow__container {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}
.react-flow__pane {
  z-index: 1;
}
.react-flow__pane.draggable {
  cursor: grab;
}
.react-flow__pane.dragging {
  cursor: grabbing;
}
.react-flow__pane.selection {
  cursor: pointer;
}
.react-flow__viewport {
  transform-origin: 0 0;
  z-index: 2;
  pointer-events: none;
}
.react-flow__renderer {
  z-index: 4;
}
.react-flow__selection {
  z-index: 6;
}
.react-flow__nodesselection-rect:focus,
.react-flow__nodesselection-rect:focus-visible {
  outline: none;
}
.react-flow__edge-path {
  stroke: var(--xy-edge-stroke, var(--xy-edge-stroke-default));
  stroke-width: var(--xy-edge-stroke-width, var(--xy-edge-stroke-width-default));
  fill: none;
}
.react-flow__connection-path {
  stroke: var(--xy-connectionline-stroke, var(--xy-connectionline-stroke-default));
  stroke-width: var(--xy-connectionline-stroke-width, var(--xy-connectionline-stroke-width-default));
  fill: none;
}
.react-flow .react-flow__edges {
  position: absolute;
}
.react-flow .react-flow__edges svg {
  overflow: visible;
  position: absolute;
  pointer-events: none;
}
.react-flow__edge {
  pointer-events: visibleStroke;
}
.react-flow__edge.selectable {
  cursor: pointer;
}
.react-flow__edge.animated path {
  stroke-dasharray: 5;
  animation: dashdraw 0.5s linear infinite;
}
.react-flow__edge.animated path.react-flow__edge-interaction {
  stroke-dasharray: none;
  animation: none;
}
.react-flow__edge.inactive {
  pointer-events: none;
}
.react-flow__edge.selected,
.react-flow__edge:focus,
.react-flow__edge:focus-visible {
  outline: none;
}
.react-flow__edge.selected .react-flow__edge-path,
.react-flow__edge.selectable:focus .react-flow__edge-path,
.react-flow__edge.selectable:focus-visible .react-flow__edge-path {
  stroke: var(--xy-edge-stroke-selected, var(--xy-edge-stroke-selected-default));
}
.react-flow__edge-textwrapper {
  pointer-events: all;
}
.react-flow__edge .react-flow__edge-text {
  pointer-events: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}
.react-flow__arrowhead polyline {
  stroke: var(--xy-edge-stroke, var(--xy-edge-stroke-default));
}
.react-flow__arrowhead polyline.arrowclosed {
  fill: var(--xy-edge-stroke, var(--xy-edge-stroke-default));
}
.react-flow__connection {
  pointer-events: none;
}
.react-flow__connection .animated {
  stroke-dasharray: 5;
  animation: dashdraw 0.5s linear infinite;
}
svg.react-flow__connectionline {
  z-index: 1001;
  overflow: visible;
  position: absolute;
}
.react-flow__nodes {
  pointer-events: none;
  transform-origin: 0 0;
}
.react-flow__node {
  position: absolute;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  pointer-events: all;
  transform-origin: 0 0;
  box-sizing: border-box;
  cursor: default;
}
.react-flow__node.selectable {
  cursor: pointer;
}
.react-flow__node.draggable {
  cursor: grab;
  pointer-events: all;
}
.react-flow__node.draggable.dragging {
  cursor: grabbing;
}
.react-flow__nodesselection {
  z-index: 3;
  transform-origin: left top;
  pointer-events: none;
}
.react-flow__nodesselection-rect {
  position: absolute;
  pointer-events: all;
  cursor: grab;
}
.react-flow__handle {
  position: absolute;
  pointer-events: none;
  min-width: 5px;
  min-height: 5px;
  width: 6px;
  height: 6px;
  background-color: var(--xy-handle-background-color, var(--xy-handle-background-color-default));
  border: 1px solid var(--xy-handle-border-color, var(--xy-handle-border-color-default));
  border-radius: 100%;
}
.react-flow__handle.connectingfrom {
  pointer-events: all;
}
.react-flow__handle.connectionindicator {
  pointer-events: all;
  cursor: crosshair;
}
.react-flow__handle-bottom {
  top: auto;
  left: 50%;
  bottom: 0;
  transform: translate(-50%, 50%);
}
.react-flow__handle-top {
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
}
.react-flow__handle-left {
  top: 50%;
  left: 0;
  transform: translate(-50%, -50%);
}
.react-flow__handle-right {
  top: 50%;
  right: 0;
  transform: translate(50%, -50%);
}
.react-flow__edgeupdater {
  cursor: move;
  pointer-events: all;
}
.react-flow__pane.selection .react-flow__panel {
  pointer-events: none;
}
.react-flow__panel {
  position: absolute;
  z-index: 5;
  margin: 15px;
}
.react-flow__panel.top {
  top: 0;
}
.react-flow__panel.bottom {
  bottom: 0;
}
.react-flow__panel.top.center,
.react-flow__panel.bottom.center {
  left: 50%;
  transform: translateX(-15px) translateX(-50%);
}
.react-flow__panel.left {
  left: 0;
}
.react-flow__panel.right {
  right: 0;
}
.react-flow__panel.left.center,
.react-flow__panel.right.center {
  top: 50%;
  transform: translateY(-15px) translateY(-50%);
}
.react-flow__attribution {
  font-size: 10px;
  background: var(--xy-attribution-background-color, var(--xy-attribution-background-color-default));
  padding: 2px 3px;
  margin: 0;
}
.react-flow__attribution a {
  text-decoration: none;
  color: #999;
}
@keyframes dashdraw {
  from {
    stroke-dashoffset: 10;
  }
}
.react-flow__edgelabel-renderer {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  left: 0;
  top: 0;
}
.react-flow__viewport-portal {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}
.react-flow__minimap {
  background: var( --xy-minimap-background-color-props, var(--xy-minimap-background-color, var(--xy-minimap-background-color-default)) );
}
.react-flow__minimap-svg {
  display: block;
}
.react-flow__minimap-mask {
  fill: var( --xy-minimap-mask-background-color-props, var(--xy-minimap-mask-background-color, var(--xy-minimap-mask-background-color-default)) );
  stroke: var( --xy-minimap-mask-stroke-color-props, var(--xy-minimap-mask-stroke-color, var(--xy-minimap-mask-stroke-color-default)) );
  stroke-width: var( --xy-minimap-mask-stroke-width-props, var(--xy-minimap-mask-stroke-width, var(--xy-minimap-mask-stroke-width-default)) );
}
.react-flow__minimap-node {
  fill: var( --xy-minimap-node-background-color-props, var(--xy-minimap-node-background-color, var(--xy-minimap-node-background-color-default)) );
  stroke: var( --xy-minimap-node-stroke-color-props, var(--xy-minimap-node-stroke-color, var(--xy-minimap-node-stroke-color-default)) );
  stroke-width: var( --xy-minimap-node-stroke-width-props, var(--xy-minimap-node-stroke-width, var(--xy-minimap-node-stroke-width-default)) );
}
.react-flow__background-pattern.dots {
  fill: var( --xy-background-pattern-color-props, var(--xy-background-pattern-color, var(--xy-background-pattern-dots-color-default)) );
}
.react-flow__background-pattern.lines {
  stroke: var( --xy-background-pattern-color-props, var(--xy-background-pattern-color, var(--xy-background-pattern-lines-color-default)) );
}
.react-flow__background-pattern.cross {
  stroke: var( --xy-background-pattern-color-props, var(--xy-background-pattern-color, var(--xy-background-pattern-cross-color-default)) );
}
.react-flow__controls {
  display: flex;
  flex-direction: column;
  box-shadow: var(--xy-controls-box-shadow, var(--xy-controls-box-shadow-default));
}
.react-flow__controls.horizontal {
  flex-direction: row;
}
.react-flow__controls-button {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 26px;
  width: 26px;
  padding: 4px;
  border: none;
  background: var(--xy-controls-button-background-color, var(--xy-controls-button-background-color-default));
  border-bottom: 1px solid var( --xy-controls-button-border-color-props, var(--xy-controls-button-border-color, var(--xy-controls-button-border-color-default)) );
  color: var( --xy-controls-button-color-props, var(--xy-controls-button-color, var(--xy-controls-button-color-default)) );
  cursor: pointer;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}
.react-flow__controls-button svg {
  width: 100%;
  max-width: 12px;
  max-height: 12px;
  fill: currentColor;
}
.react-flow__edge.updating .react-flow__edge-path {
  stroke: #777;
}
.react-flow__edge-text {
  font-size: 10px;
}
.react-flow__node.selectable:focus,
.react-flow__node.selectable:focus-visible {
  outline: none;
}
.react-flow__node-input,
.react-flow__node-default,
.react-flow__node-output,
.react-flow__node-group {
  padding: 10px;
  border-radius: var(--xy-node-border-radius, var(--xy-node-border-radius-default));
  width: 150px;
  font-size: 12px;
  color: var(--xy-node-color, var(--xy-node-color-default));
  text-align: center;
  border: var(--xy-node-border, var(--xy-node-border-default));
  background-color: var(--xy-node-background-color, var(--xy-node-background-color-default));
}
.react-flow__node-input.selectable:hover,
.react-flow__node-default.selectable:hover,
.react-flow__node-output.selectable:hover,
.react-flow__node-group.selectable:hover {
  box-shadow: var(--xy-node-boxshadow-hover, var(--xy-node-boxshadow-hover-default));
}
.react-flow__node-input.selectable.selected,
.react-flow__node-input.selectable:focus,
.react-flow__node-input.selectable:focus-visible,
.react-flow__node-default.selectable.selected,
.react-flow__node-default.selectable:focus,
.react-flow__node-default.selectable:focus-visible,
.react-flow__node-output.selectable.selected,
.react-flow__node-output.selectable:focus,
.react-flow__node-output.selectable:focus-visible,
.react-flow__node-group.selectable.selected,
.react-flow__node-group.selectable:focus,
.react-flow__node-group.selectable:focus-visible {
  box-shadow: var(--xy-node-boxshadow-selected, var(--xy-node-boxshadow-selected-default));
}
.react-flow__node-group {
  background-color: var(--xy-node-group-background-color, var(--xy-node-group-background-color-default));
}
.react-flow__nodesselection-rect,
.react-flow__selection {
  background: var(--xy-selection-background-color, var(--xy-selection-background-color-default));
  border: var(--xy-selection-border, var(--xy-selection-border-default));
}
.react-flow__nodesselection-rect:focus,
.react-flow__nodesselection-rect:focus-visible,
.react-flow__selection:focus,
.react-flow__selection:focus-visible {
  outline: none;
}
.react-flow__controls-button:hover {
  background: var( --xy-controls-button-background-color-hover-props, var(--xy-controls-button-background-color-hover, var(--xy-controls-button-background-color-hover-default)) );
  color: var( --xy-controls-button-color-hover-props, var(--xy-controls-button-color-hover, var(--xy-controls-button-color-hover-default)) );
}
.react-flow__controls-button:disabled {
  pointer-events: none;
}
.react-flow__controls-button:disabled svg {
  fill-opacity: 0.4;
}
.react-flow__controls-button:last-child {
  border-bottom: none;
}
.react-flow__controls.horizontal .react-flow__controls-button {
  border-bottom: none;
  border-right: 1px solid var( --xy-controls-button-border-color-props, var(--xy-controls-button-border-color, var(--xy-controls-button-border-color-default)) );
}
.react-flow__controls.horizontal .react-flow__controls-button:last-child {
  border-right: none;
}
.react-flow__resize-control {
  position: absolute;
}
.react-flow__resize-control.left,
.react-flow__resize-control.right {
  cursor: ew-resize;
}
.react-flow__resize-control.top,
.react-flow__resize-control.bottom {
  cursor: ns-resize;
}
.react-flow__resize-control.top.left,
.react-flow__resize-control.bottom.right {
  cursor: nwse-resize;
}
.react-flow__resize-control.bottom.left,
.react-flow__resize-control.top.right {
  cursor: nesw-resize;
}
.react-flow__resize-control.handle {
  width: 5px;
  height: 5px;
  border: 1px solid #fff;
  border-radius: 1px;
  background-color: var(--xy-resize-background-color, var(--xy-resize-background-color-default));
  translate: -50% -50%;
}
.react-flow__resize-control.handle.left {
  left: 0;
  top: 50%;
}
.react-flow__resize-control.handle.right {
  left: 100%;
  top: 50%;
}
.react-flow__resize-control.handle.top {
  left: 50%;
  top: 0;
}
.react-flow__resize-control.handle.bottom {
  left: 50%;
  top: 100%;
}
.react-flow__resize-control.handle.top.left {
  left: 0;
}
.react-flow__resize-control.handle.bottom.left {
  left: 0;
}
.react-flow__resize-control.handle.top.right {
  left: 100%;
}
.react-flow__resize-control.handle.bottom.right {
  left: 100%;
}
.react-flow__resize-control.line {
  border-color: var(--xy-resize-background-color, var(--xy-resize-background-color-default));
  border-width: 0;
  border-style: solid;
}
.react-flow__resize-control.line.left,
.react-flow__resize-control.line.right {
  width: 1px;
  transform: translate(-50%, 0);
  top: 0;
  height: 100%;
}
.react-flow__resize-control.line.left {
  left: 0;
  border-left-width: 1px;
}
.react-flow__resize-control.line.right {
  left: 100%;
  border-right-width: 1px;
}
.react-flow__resize-control.line.top,
.react-flow__resize-control.line.bottom {
  height: 1px;
  transform: translate(0, -50%);
  left: 0;
  width: 100%;
}
.react-flow__resize-control.line.top {
  top: 0;
  border-top-width: 1px;
}
.react-flow__resize-control.line.bottom {
  border-bottom-width: 1px;
  top: 100%;
}
.react-flow__edge-textbg {
  fill: var(--xy-edge-label-background-color, var(--xy-edge-label-background-color-default));
}
.react-flow__edge-text {
  fill: var(--xy-edge-label-color, var(--xy-edge-label-color-default));
}

/* client/react/components/lessongraph/lessongraph.css */
.lg-wrap {
  position: relative;
  border: 1px solid #ccd2dc;
  border-radius: 10px;
  overflow: hidden;
  background: #fbfcfe;
  margin: 1.5em auto;
}
.lg-heading {
  position: absolute;
  top: 10px;
  left: 14px;
  z-index: 5;
  font-size: 15px;
  font-weight: 600;
  color: #2a3550;
  background: rgba(255, 255, 255, .8);
  padding: 3px 10px;
  border-radius: 6px;
  pointer-events: none;
}
.lg-empty {
  border: 1px dashed #ccd2dc;
  border-radius: 10px;
  padding: 24px;
  text-align: center;
  color: #778;
  font-size: 14px;
  margin: 1.5em auto;
  max-width: 640px;
}
.lg-node {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 230px;
  padding: 10px 12px;
  background: #fff;
  border: 1.5px solid #d7deea;
  border-left-width: 5px;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(31, 51, 92, .08);
  cursor: pointer;
  transition: box-shadow .15s, transform .15s;
}
.lg-node:hover {
  box-shadow: 0 4px 16px rgba(31, 51, 92, .18);
  transform: translateY(-1px);
}
.lg-node-num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #eef1f6;
  color: #55617a;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lg-node-main {
  flex: 1;
  min-width: 0;
}
.lg-node-title {
  font-size: 14px;
  font-weight: 600;
  color: #223;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lg-node-status {
  font-size: 11.5px;
  color: #8a94a6;
  margin-top: 1px;
}
.lg-lock {
  font-size: 16px;
}
.lg-done {
  border-left-color: #43a047;
}
.lg-done .lg-node-num {
  background: #43a047;
  color: #fff;
}
.lg-current {
  border-left-color: #1a73e8;
  border-color: #9fc3ef;
}
.lg-current .lg-node-num {
  background: #1a73e8;
  color: #fff;
}
.lg-current .lg-node-status {
  color: #1a73e8;
  font-weight: 600;
}
.lg-in-progress {
  border-left-color: #fb8c00;
}
.lg-in-progress .lg-node-num {
  background: #fb8c00;
  color: #fff;
}
.lg-todo {
  border-left-color: #c7cfdd;
}
.lg-locked {
  border-left-color: #b0b7c3;
  opacity: .7;
  cursor: not-allowed;
}
.lg-ring {
  flex-shrink: 0;
}
.lg-ring-bg {
  fill: none;
  stroke: #e8ecf3;
  stroke-width: 3.5;
}
.lg-ring-fg {
  fill: none;
  stroke: #43a047;
  stroke-width: 3.5;
  stroke-linecap: round;
  transition: stroke-dasharray .3s;
}
.lg-current .lg-ring-fg {
  stroke: #1a73e8;
}
.lg-in-progress .lg-ring-fg {
  stroke: #fb8c00;
}
.lg-handle {
  opacity: 0;
  width: 1px;
  height: 1px;
}

/* client/react/styles/nav-links.css */
nav a,
nav a:hover,
nav a:focus,
nav a:active {
  text-decoration: none !important;
}
.tc._o.sf.yo.cg.ep a,
.tc._o.sf.yo.cg.ep a:hover,
.tc._o.sf.yo.cg.ep a:focus,
.tc._o.sf.yo.cg.ep a:active {
  text-decoration: none !important;
}

/* client/react/flashcards/flashcard-home.css */
.flashcard-grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 2rem;
  row-gap: 2rem;
}
@media (min-width: 640px) {
  .flashcard-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1024px) {
  .flashcard-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.flashcard-card-wrapper {
  width: 100%;
}
.flashcard-card {
  width: 100%;
  display: block;
}
.flashcard-grid-container {
  display: grid !important;
  grid-auto-rows: minmax(0, 1fr) !important;
  align-items: stretch !important;
}
.flashcard-grid-item,
.flashcard-grid-item > button,
.flashcard-grid-item > .card-inner {
  height: 100% !important;
  min-height: 0 !important;
}
.flashcard-grid-item h3,
.flashcard-grid-item p {
  margin: 0 0 0.5rem 0 !important;
}

/* client/react/flashcards/flashcard.css */
.perspective-1000 {
  perspective: 1000px;
}
.transform-style-3d {
  transform-style: preserve-3d;
}
.backface-hidden {
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}
.flip-card {
  transition: transform 0.6s;
  transform-style: preserve-3d;
  position: relative;
  width: 100%;
  height: 100%;
  cursor: pointer;
}
.flip-card.flipped {
  transform: rotateY(180deg);
}
.card-front {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  transform: rotateY(0deg);
  z-index: 2;
  border-radius: 1rem;
}
.card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  transform: rotateY(180deg);
  z-index: 1;
  border-radius: 1rem;
}
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.slide-in {
  animation: slideIn 0.3s ease-out;
}
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}
.pulse-animation {
  animation: pulse 0.5s ease-in-out;
}
* {
  transition:
    background-color 0.3s ease,
    color 0.3s ease,
    border-color 0.3s ease;
}
.dark {
  color-scheme: dark;
}
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 40;
  animation: fadeIn 0.2s ease-out;
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
.modal-content {
  animation: slideUp 0.3s ease-out;
}
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* client/react/notes/notes.css */
.notes-container * {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
.notes-container {
  font-family:
    "Segoe UI",
    Tahoma,
    Geneva,
    Verdana,
    sans-serif;
  line-height: 1.6;
  color: #333;
}
.notes-container .app-container {
  min-height: 100vh;
  padding: 20px;
}
.notes-container .navigation {
  max-width: 900px;
  margin: 0 auto 20px;
  background: white;
  padding: 20px;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}
.notes-container .nav-title {
  color: #667eea;
  text-align: center;
  margin-bottom: 20px;
  font-size: 1.8em;
}
.notes-container .nav-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}
.notes-container .nav-btn {
  padding: 12px 24px;
  font-size: 1em;
  border: 2px solid #667eea;
  background: white;
  color: #667eea;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 600;
}
.notes-container .nav-btn:hover {
  background: #f0f4ff;
  transform: translateY(-2px);
}
.notes-container .nav-btn.active {
  background: #667eea;
  color: white;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}
.notes-container .content-area {
  animation: fadeIn 0.5s ease-in;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.notes-container .container {
  max-width: 900px;
  margin: 0 auto;
  background: white;
  padding: 40px;
  border-radius: 15px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}
.notes-container h1 {
  color: #667eea;
  text-align: center;
  margin-bottom: 10px;
  font-size: 2.5em;
  border-bottom: 3px solid #667eea;
  padding-bottom: 15px;
}
.notes-container .chapter-info {
  text-align: center;
  color: #666;
  margin-bottom: 30px;
  font-size: 1.1em;
}
.notes-container h2 {
  color: #764ba2;
  margin-top: 35px;
  margin-bottom: 15px;
  font-size: 1.8em;
  border-left: 5px solid #764ba2;
  padding-left: 15px;
}
.notes-container h3 {
  color: #667eea;
  margin-top: 25px;
  margin-bottom: 10px;
  font-size: 1.4em;
}
.notes-container h4 {
  color: #555;
  margin-top: 15px;
  margin-bottom: 8px;
  font-size: 1.2em;
}
.notes-container .key-topics {
  background: #f0f4ff;
  padding: 20px;
  border-radius: 10px;
  margin: 20px 0;
  border-left: 4px solid #667eea;
}
.notes-container .key-topics h3 {
  margin-top: 0;
  color: #667eea;
}
.notes-container .key-topics ul {
  margin-left: 25px;
  margin-top: 10px;
}
.notes-container .key-topics li {
  margin: 8px 0;
}
.notes-container .explanation {
  background: #fff9e6;
  padding: 20px;
  border-radius: 10px;
  margin: 20px 0;
  border-left: 4px solid #ffa500;
}
.notes-container .explanation h3 {
  margin-top: 0;
  color: #ff8c00;
}
.notes-container .examples {
  background: #e8f5e9;
  padding: 20px;
  border-radius: 10px;
  margin: 20px 0;
  border-left: 4px solid #4caf50;
}
.notes-container .examples h3 {
  margin-top: 0;
  color: #2e7d32;
}
.notes-container .example-box {
  background: white;
  padding: 15px;
  margin: 15px 0;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}
.notes-container .example-box strong {
  color: #2e7d32;
  display: block;
  margin-bottom: 10px;
  font-size: 1.1em;
}
.notes-container .example-box p strong {
  display: inline;
  color: #2e7d32;
}
.notes-container ul {
  margin-left: 30px;
  margin-top: 10px;
  margin-bottom: 15px;
}
.notes-container ol {
  margin-left: 30px;
  margin-top: 10px;
  margin-bottom: 15px;
}
.notes-container li {
  margin: 8px 0;
}
.notes-container .formula-box {
  background: #ffebee;
  padding: 15px;
  border-radius: 8px;
  margin: 15px 0;
  border: 2px dashed #e53935;
  text-align: center;
  font-weight: bold;
  color: #c62828;
}
.notes-container .formula-box ul {
  text-align: left;
  margin-top: 10px;
}
.notes-container .important-note {
  background: #fff3e0;
  padding: 15px;
  border-radius: 8px;
  margin: 15px 0;
  border-left: 4px solid #ff9800;
}
.notes-container .important-note strong {
  color: #ef6c00;
}
.notes-container .important-note p {
  margin: 8px 0;
}
.notes-container table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}
.notes-container th,
.notes-container td {
  border: 1px solid #ddd;
  padding: 12px;
  text-align: left;
}
.notes-container th {
  background-color: #667eea;
  color: white;
  font-weight: 600;
}
.notes-container tr:nth-child(even) {
  background-color: #f9f9f9;
}
.notes-container .tip-box {
  background: #e1f5fe;
  padding: 15px;
  border-radius: 8px;
  margin: 15px 0;
  border-left: 4px solid #0288d1;
}
.notes-container .tip-box strong {
  color: #01579b;
}
.notes-container .tip-box ol {
  margin-top: 10px;
}
.notes-container code {
  background: #f5f5f5;
  padding: 2px 6px;
  border-radius: 3px;
  font-family: "Courier New", monospace;
}
.notes-container .footer {
  text-align: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 2px solid #eee;
  color: #666;
}
.notes-container .footer p {
  margin: 8px 0;
}
@media (max-width: 768px) {
  .notes-container .container {
    padding: 20px;
  }
  .notes-container h1 {
    font-size: 2em;
  }
  .notes-container h2 {
    font-size: 1.5em;
  }
  .notes-container h3 {
    font-size: 1.2em;
  }
  .notes-container .nav-buttons {
    flex-direction: column;
  }
  .notes-container .nav-btn {
    width: 100%;
  }
  .notes-container .navigation {
    padding: 15px;
  }
  .notes-container .nav-title {
    font-size: 1.4em;
  }
}
@media (max-width: 480px) {
  .notes-container .app-container {
    padding: 10px;
  }
  .notes-container .container {
    padding: 15px;
  }
  .notes-container h1 {
    font-size: 1.8em;
  }
  .notes-container .chapter-info {
    font-size: 0.95em;
  }
  .notes-container .key-topics,
  .notes-container .explanation,
  .notes-container .examples {
    padding: 15px;
  }
  .notes-container table {
    font-size: 0.9em;
  }
  .notes-container th,
  .notes-container td {
    padding: 8px;
  }
}
@media print {
  .notes-container {
    background: white;
  }
  .notes-container .app-container {
    padding: 0;
  }
  .notes-container .navigation {
    display: none;
  }
  .notes-container .container {
    box-shadow: none;
    padding: 20px;
  }
  .notes-container .example-box,
  .notes-container .key-topics,
  .notes-container .explanation,
  .notes-container .examples {
    page-break-inside: avoid;
  }
  .notes-container h2 {
    page-break-after: avoid;
  }
}
.notes-container {
  scroll-behavior: smooth;
}
.notes-container ::selection {
  background-color: #667eea;
  color: white;
}
.notes-container ::-moz-selection {
  background-color: #667eea;
  color: white;
}