/* Catppuccin Macchiato Color Palette */
:root {
  --base: #24273A;
  --mantle: #1E2030;
  --surface0: #363A4F;
  --rosewater: #F4DBD6;
  --peach: #F5A97F;
  --text: #c9d1d9;
  --lavender: #B7BDF8;
  --shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

/* Hide checkbox */
#toc-toggle {
  display: none;
}

/* Button Styling */
.toc-button {
  position: fixed;
  right: 15px;
  top: 15%;
  transform: translateY(0);
  background: var(--mantle);
  width: 36px;
  height: 36px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s ease, right 0.2s ease;
  z-index: 1000;
  box-shadow: var(--shadow);
}

.toc-button:hover {
  background: var(--surface0);
}

.toc-button::before {
  content: "➤";
  font-size: 18px;
  color: var(--rosewater);
  transform: rotate(180deg);
  transition: transform 0.2s ease;
}

#toc-toggle:checked ~ .toc-button::before {
  transform: rotate(0deg);
}

#toc-toggle:checked ~ .toc-button {
  right: 375px;
}

/* Table of Contents Panel */
.toc-panel {
  position: fixed;
  right: -360px;
  top: 15%;
  height: auto;
  width: 360px;
  background: var(--mantle);
  border-radius: 8px;
  border: 1px solid var(--surface0);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease;
  z-index: 999;
  overflow-y: visible;
}

#toc-toggle:checked ~ .toc-panel {
  transform: translateX(-360px);
}

/* Unordered List Styling */
.toc-content ul {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.toc-content li {
  padding-left: 0.25rem; /* Single whitespace indentation */
  padding-top: 0.25rem;
  margin-bottom: 0.25rem;
}

.toc-content ul ul {
  padding-left: 0.5rem; /* Double whitespace for nested levels */
}

.toc-content ul ul ul {
  padding-left: 0.75rem; /* Triple whitespace for deeper nesting */
}

/* Links Styling */
.toc-content a[href] {
  display: block;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.toc-content a[href]:hover {
  background: var(--surface0);
}

/* Responsive Design */
@media (max-width: 842px) {
  .toc-button {
    display: none; /* Hide button on small screens */
  }

  .toc-panel {
    display: none; /* Hide panel on small screens */
  }

  .overlay {
    display: none; /* Hide overlay on small screens */
  }
}