/* TOC positioned in left margin, aligned with body text */
.toc-left-margin {
  position: fixed;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 280px;
  max-height: 70vh;
  z-index: 100;
}


@media (min-width: 992px) and (max-width: 1199px) {
  .toc-left-margin {
    /* Position to the left of the main content area */
    left: calc((100vw - 960px) / 2 - 100px);
  }
}

/* If screen is too narrow for left margin, hide TOC */
@media (max-width: 1400px) {
  .toc-left-margin {
    display: none !important;
  }
}

/* TOC container styling */
.toc-container {
  width: 100%;
  background: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  margin: 0;
  font-size: 0.85em;
}

.toc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: #1d1951;
  border-bottom: 1px solid #dee2e6;
  border-radius: 8px 8px 0 0;
}

.toc-header h4 {
  margin: 0;
  font-size: 1em;
  font-weight: 600;
  color: #EAEAEA;
}

.toc-toggle {
  background: none;
  border: none;
  font-size: 1.2em;
  cursor: pointer;
  color: #EAEAEA;
  padding: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toc-toggle:hover {
  color: #09b36b;
}

.toc-content {
  max-height: calc(70vh - 60px);
  overflow-y: auto;
  padding: 8px 0;
}

.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc-item {
  margin: 0;
  padding: 0;
}

.toc-link {
  display: block;
  padding: 6px 16px;
  color: #495057;
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: all 0.2s ease;
  line-height: 1.4;
  font-size: 0.9em;
}

.toc-link:hover {
  background-color: #e9ecef;
  color: #09B36B;
  text-decoration: none;
  border-left-color: #09B36B;
}

.toc-level-1 .toc-link {
  font-weight: 600;
  padding-left: 16px;
  font-size: 0.95em;
}

.toc-level-2 .toc-link {
  padding-left: 24px;
  font-size: 0.9em;
}

.toc-level-3 .toc-link {
  padding-left: 32px;
  font-size: 0.85em;
}

.toc-level-4 .toc-link {
  padding-left: 40px;
  font-size: 0.8em;
}

.toc-level-5 .toc-link {
  padding-left: 48px;
  font-size: 0.8em;
}

.toc-level-6 .toc-link {
  padding-left: 56px;
  font-size: 0.8em;
}

/* Active link highlighting */
.toc-link.active {
  background-color: #e9ecef;
  color: #09B36B;
  border-left-color: #09B36B;
  font-weight: 600;
}

/* Custom scrollbar for TOC */
.toc-content::-webkit-scrollbar {
  width: 4px;
}

.toc-content::-webkit-scrollbar-track {
  background: #f1f1f1;
}

.toc-content::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 2px;
}

.toc-content::-webkit-scrollbar-thumb:hover {
  background: #a8a8a8;
}