:root {
  --course-page: #f8f9fa;
  --course-paper: #ffffff;
  --course-line: #d8dde2;
}

html {
  scroll-behavior: smooth;
}

body.jp-Notebook {
  max-width: none;
  margin: 0;
  padding: 0;
  background: var(--course-page);
  --jp-mirror-editor-keyword-color: #008000;
  --jp-mirror-editor-atom-color: #88f;
  --jp-mirror-editor-number-color: #080;
  --jp-mirror-editor-def-color: #00f;
  --jp-mirror-editor-variable-color: #212121;
  --jp-mirror-editor-variable-2-color: #05a;
  --jp-mirror-editor-operator-color: #aa22ff;
  --jp-mirror-editor-comment-color: #408080;
  --jp-mirror-editor-string-color: #ba2121;
  --jp-mirror-editor-meta-color: #aa22ff;
  --jp-mirror-editor-punctuation-color: #05a;
  --jp-mirror-editor-error-color: #f00;
}

body.jp-Notebook > main,
body.jp-Notebook .course-shell > main {
  box-sizing: border-box;
  width: min(100% - 3rem, 56rem);
  margin: 2rem auto 4rem;
  padding: 1rem 2rem 3rem;
  background: var(--course-paper);
  border: 1px solid var(--course-line);
  box-shadow: 0 1px 2px rgb(36 41 47 / 5%);
}

body.jp-Notebook .course-shell {
  display: grid;
  grid-template-columns: 12.5rem minmax(0, 52rem) 11.5rem;
  gap: 2rem;
  width: min(100% - 3rem, 88rem);
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

body.jp-Notebook .course-shell > main {
  min-width: 0;
  width: 100%;
  margin: 0;
}

.course-toc,
.course-menu {
  position: sticky;
  top: 1.5rem;
  align-self: start;
  max-height: calc(100vh - 3rem);
  overflow-y: auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.86rem;
  line-height: 1.35;
}

.course-home {
  display: inline-block;
  margin-bottom: 1.5rem;
  color: #336e7b;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  text-decoration: none;
}

.course-panel-title {
  margin: 0 0 0.65rem;
  color: #54595d;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.course-disclosure > summary {
  display: block;
  cursor: pointer;
  list-style: none;
}

.course-disclosure > summary::-webkit-details-marker { display: none; }

.course-toc ul,
.course-menu nav {
  margin: 0;
  padding: 0;
  border-top: 1px solid #c8ccd1;
}

.course-toc li { list-style: none; }

.course-toc a,
.course-menu nav a {
  display: block;
  padding: 0.42rem 0;
  color: #336e7b;
  text-decoration: none;
}

.course-toc a,
.course-menu nav a { border-bottom: 1px solid #eaecf0; }
.course-toc a[data-level="1"] { font-weight: 700; }
.course-toc a[data-level="2"] { padding-left: 0.45rem; }

.course-toc a[data-level="3"] {
  padding-left: 0.9rem;
  color: #54595d;
  font-size: 0.81rem;
}

.course-toc a[data-level="4"] {
  padding-left: 1.35rem;
  color: #54595d;
  font-size: 0.78rem;
}

.course-toc a:hover,
.course-menu nav a:hover,
.course-home:hover {
  color: #202122;
  text-decoration: underline;
}

.course-menu nav a[aria-current="page"] { font-weight: 700; }
.course-resources-title { margin-top: 1.8rem; }

body.jp-Notebook .jp-CodeCell .jp-InputPrompt {
  visibility: hidden;
}

body.jp-Notebook .jp-CodeCell .jp-InputArea,
body.jp-Notebook .jp-CodeCell .jp-OutputArea-child {
  display: grid;
  grid-template-columns: calc(var(--jp-cell-prompt-width) + 2 * var(--jp-code-padding) + 2 * var(--jp-border-width)) minmax(0, 1fr);
}

body.jp-Notebook .jp-CodeCell .jp-InputPrompt,
body.jp-Notebook .jp-CodeCell .jp-OutputPrompt {
  display: block;
  box-sizing: border-box;
  width: 100%;
}

body.jp-Notebook .jp-CodeCell .jp-InputArea-editor,
body.jp-Notebook .jp-CodeCell .jp-OutputArea-output {
  display: block;
  width: auto;
  min-width: 0;
}

body.jp-Notebook .jp-CodeCell .jp-OutputArea .jp-RenderedText {
  padding-left: var(--jp-code-padding);
}

body.jp-Notebook .jp-CodeCell .jp-OutputArea-output .code.cm-s-jupyter {
  font-family: var(--jp-code-font-family);
  font-size: var(--jp-code-font-size);
  line-height: var(--jp-code-line-height);
}

body.jp-Notebook .jp-CodeCell .jp-OutputArea-output .code.cm-s-jupyter .cm-space {
  white-space: pre;
}

body.jp-Notebook .jp-CodeCell .jp-OutputArea-output .code.cm-s-jupyter .cm-keyword {
  color: var(--jp-mirror-editor-keyword-color);
  font-weight: bold;
}

body.jp-Notebook .jp-CodeCell .jp-OutputArea-output .code.cm-s-jupyter .cm-atom {
  color: var(--jp-mirror-editor-atom-color);
}

body.jp-Notebook .jp-CodeCell .jp-OutputArea-output .code.cm-s-jupyter .cm-variable {
  color: var(--jp-mirror-editor-variable-color);
}

body.jp-Notebook .jp-CodeCell .jp-OutputArea-output .code.cm-s-jupyter .cm-variable-2 {
  color: var(--jp-mirror-editor-variable-2-color);
}

body.jp-Notebook .jp-CodeCell .jp-OutputArea-output .code.cm-s-jupyter .cm-operator {
  color: var(--jp-mirror-editor-operator-color);
  font-weight: bold;
}

body.jp-Notebook .jp-CodeCell .jp-OutputArea-output .code.cm-s-jupyter .cm-comment {
  color: var(--jp-mirror-editor-comment-color);
  font-style: italic;
}

body.jp-Notebook .jp-CodeCell .jp-OutputArea-output .code.cm-s-jupyter .cm-meta {
  color: var(--jp-mirror-editor-meta-color);
}

@media (max-width: 1120px) {
  body.jp-Notebook .course-shell {
    grid-template-columns: 11.5rem minmax(0, 1fr);
  }

  .course-menu {
    position: static;
    grid-column: 2;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
    max-height: none;
  }

  .course-menu .course-resources-title { margin-top: 0; }
}

@media (max-width: 760px) {
  body.jp-Notebook > main {
    width: min(100% - 2rem, 56rem);
    margin-top: 1rem;
    padding: 0.5rem 1.1rem 2rem;
  }

  body.jp-Notebook .course-shell {
    display: flex;
    flex-direction: column;
    width: min(100% - 2rem, 52rem);
    padding-top: 1rem;
    padding-bottom: 1.5rem;
    gap: 0.75rem;
  }

  .course-toc,
  .course-menu {
    position: static;
    align-self: stretch;
    width: 100%;
    max-height: none;
    overflow: visible;
    margin: 0;
  }

  .course-toc { order: 0; }
  .course-home { margin-bottom: 0.75rem; }
  .course-toc ul { columns: 1; }
  body.jp-Notebook .course-shell > main {
    order: 1;
    padding: 0.5rem 1.1rem 1.25rem;
    overflow-wrap: anywhere;
  }

  body.jp-Notebook .course-shell > main img,
  body.jp-Notebook .course-shell > main svg {
    max-width: 100%;
    height: auto;
  }

  .course-menu { display: block; order: 2; }
  .course-menu-section + .course-menu-section { margin-top: 0.9rem; }
  .course-menu .course-resources-title { margin-top: 0; }

  .course-disclosure {
    border: 1px solid var(--course-line);
    border-radius: 6px;
    background: var(--course-paper);
  }

  .course-disclosure > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 44px;
    margin: 0;
    padding: 0.7rem 0.9rem;
  }

  .course-disclosure > summary::after { content: "+"; font-size: 1.1rem; }
  .course-disclosure[open] > summary::after { content: "-"; }
  .course-disclosure nav { padding: 0 0.9rem 0.5rem; }
  .course-toc a { min-height: 44px; box-sizing: border-box; }
  .course-menu nav a {
    min-height: 36px;
    box-sizing: border-box;
    padding: 0.25rem 0;
  }

  body.jp-Notebook .jp-CodeCell .jp-InputArea,
  body.jp-Notebook .jp-CodeCell .jp-OutputArea-child {
    grid-template-columns: minmax(0, 1fr);
  }

  body.jp-Notebook .jp-CodeCell .jp-InputPrompt,
  body.jp-Notebook .jp-CodeCell .jp-OutputPrompt { display: none; }

  body.jp-Notebook .jp-CodeCell .jp-InputArea-editor,
  body.jp-Notebook .jp-CodeCell .jp-OutputArea-output { overflow-x: auto; }

  body.jp-Notebook .jp-CodeCell .jp-OutputArea-output .code.cm-s-jupyter {
    white-space: nowrap;
    overflow-wrap: normal;
  }

  body.jp-Notebook .jp-CodeCell .jp-InputArea-editor pre,
  body.jp-Notebook .jp-CodeCell .jp-OutputArea-output pre { white-space: pre; }
}

@media print {
  body.jp-Notebook {
    background: #ffffff;
  }

  body.jp-Notebook .course-shell { display: block; width: 100%; padding: 0; }
  .course-toc,
  .course-menu { display: none; }

  body.jp-Notebook > main,
  body.jp-Notebook .course-shell > main {
    width: 100%;
    margin: 0;
    padding: 0;
    border: 0;
    box-shadow: none;
  }
}