html, body {
  margin: 0;
  padding: 0;
  background-color: #1d252c;
  color: #b7c5d3;
  font-family: "Inter", "Fira Sans", system-ui, sans-serif;
  line-height: 1.6;
  overflow-x: hidden; /* prevent horizontal scroll from small overflows */
}

body {
  display: flex;
}

#table-of-contents {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100vh;
  overflow-y: auto;
  padding: 1.2rem 1rem;
  background-color: #232b32;
  border-right: 1px solid #2f3b45;
  font-size: 0.9rem;
}

#table-of-contents h2 {
  display: none;
}

#text-table-of-contents ul {
  list-style: none;
  padding-left: 0;
}

#text-table-of-contents li {
  margin: 0.2rem 0;
  position: relative;
}

.toc-entry {
  display: inline-flex;
  align-items: center;
}

#text-table-of-contents a {
  color: #b7c5d3;
  text-decoration: none;
}

#text-table-of-contents a:hover {
  color: #5ec4ff;
}

#text-table-of-contents ul ul {
  padding-left: 1rem;
  border-left: 1px solid #2f3b45;
}

#content {
  margin-left: 300px;
  margin-right: 320px;
  padding: 2rem 3rem;
  max-width: 1200px;
  width: calc(100vw - 620px);
  box-sizing: border-box;
  transition: margin 0.3s ease, padding 0.3s ease, width 0.3s ease, max-width 0.3s ease;
}

#content.pinned-hidden {
  margin-right: 0;
  width: calc(100vw - 300px);
}

h1, h2, h3, h4, h5 {
  color: #70e1e8;
  font-weight: 500;
  margin-top: 2.2rem;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.6rem;
}

h3 {
  font-size: 1.3rem;
}


a {
  color: #5ec4ff;
}

a:hover {
  text-decoration: underline;
}

pre, code {
  font-family: "Fira Code", monospace;
  background-color: #232b32;
  color: #b7c5d3;
}

pre {
  padding: 1rem;
  overflow-x: auto;
  border: 1px solid #2f3b45;
  border-radius: 4px;
  max-width: 100%;
  box-sizing: border-box;
}

code {
  padding: 0.15rem 0.3rem;
  border-radius: 3px;
}

table {
  border-collapse: collapse;
  max-width: 100%;
}

th, td {
  border: 1px solid #2f3b45;
  padding: 0.5rem 0.8rem;
}

th {
  background-color: #232b32;
  color: #70e1e8;
}

blockquote {
  border-left: 3px solid #5ec4ff;
  margin-left: 0;
  padding-left: 1rem;
  color: #718ca1;
}

#pinned-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 280px;
  height: 100vh;
  overflow-y: auto;
  padding: 1.2rem 1rem;
  padding-bottom: 5rem;
  background-color: #232b32;
  border-left: 1px solid #2f3b45;
  font-size: 0.9rem;
  box-sizing: border-box;
  transition: transform 0.3s ease;
}

#pinned-panel.hidden {
  transform: translateX(100%);
}

#pinned-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

#pinned-panel h2 {
  margin: 0;
  font-size: 1rem;
  color: #70e1e8;
  font-weight: 500;
}

#toggle-pinned-btn {
  background: none;
  border: none;
  color: #718ca1;
  cursor: pointer;
  font-size: 1.2rem;
  padding: 0;
  line-height: 1;
}

#toggle-pinned-btn:hover {
  color: #5ec4ff;
}

#pinned-list {
  list-style: none;
  padding-left: 0;
}

#pinned-list li {
  margin: 0.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#pinned-list a {
  color: #b7c5d3;
  text-decoration: none;
  flex: 1;
}

#pinned-list a:hover {
  color: #5ec4ff;
}

.pin-remove {
  background: none;
  border: none;
  color: #718ca1;
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0 0.3rem;
}

.pin-remove:hover {
  color: #ff6b6b;
}

.toc-pin-btn {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
  cursor: pointer;
  margin-left: 0.4rem;
  font-size: 0.85rem;
  color: #718ca1;
  background: none;
  border: none;
  padding: 0;
}

.toc-pin-btn:hover {
  color: #5ec4ff;
}

#text-table-of-contents .toc-entry:hover .toc-pin-btn {
  opacity: 1;
  visibility: visible;
}

#show-pinned-btn {
  position: fixed;
  top: 4.5rem;
  right: 1rem;
  background-color: #232b32;
  border: 1px solid #2f3b45;
  color: #b7c5d3;
  cursor: pointer;
  padding: 0.5rem 0.8rem;
  font-size: 0.9rem;
  border-radius: 4px;
  display: none;
  z-index: 1000;
}

#show-pinned-btn:hover {
  background-color: #2f3b45;
  color: #5ec4ff;
}

#show-pinned-btn.visible {
  display: block;
}

@media (max-width: 1600px) {
  #content {
    max-width: 100%;
  }
}

@media (max-width: 1300px) {
  #pinned-panel {
    display: none !important;
  }

  #show-pinned-btn {
    display: none !important;
  }

  #content,
  #content.pinned-hidden {
    margin-right: 0;
    width: calc(100vw - 300px);
    max-width: 100%;
    padding: 1.8rem 2.2rem;
  }
}

@media (max-width: 1000px) {
  #table-of-contents {
    display: none;
  }

  #content {
    margin-left: 0;
    margin-right: 0;
    width: 100vw;
    max-width: 100%;
    padding: 1.5rem 1.25rem;
  }
}

@media (max-width: 700px) {
  #content {
    padding: 1.2rem 1rem;
  }
}

.darkmode-layer, .darkmode-toggle {
  z-index: 500;
}