/* Root variables for navbar height and ToC offset */
:root {
  --navbar-height: 60px; /* default, updated dynamically by JS if available */
  --toc-sticky-top: calc(var(--navbar-height) + 40px);
}

/* Table of Contents highlighting */
aside nav a {
  transition: color 0.2s ease, border-color 0.2s ease;
  position: relative;
}

aside nav a.active {
  color: var(--primary-color);
  font-weight: 600;
}

aside nav a.active::before {
  content: '';
  position: absolute;
  left: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--primary-color);
  border-radius: 2px;
}

/* Tighter, previous-style spacing for ToC headings and subheadings */
aside nav ul { 
  line-height: 1.6 !important; 
  margin: 0.25em 0 !important;
}
aside nav li { 
  margin: 0.15em 0 !important;
}
aside nav a.h2 { 
  padding-left: 0 !important; 
}
aside nav a.h3 { 
  padding-left: 1.25em !important; 
  margin-top: 0.1em !important;
}
aside nav ul ul { 
  margin: 0.15em 0 0.25em 0 !important; 
}

/* Ensure ToC doesn't get hidden behind navbar - robust positioning */
/* Override theme defaults with more specific selectors */
body.post aside {
  position: sticky !important;
  top: var(--toc-sticky-top, 120px) !important; /* Navbar height + extra padding */
  margin-top: 0 !important; /* Override theme's margin-top: 13em */
  max-height: calc(100vh - 140px) !important; /* Account for navbar and extra padding */
  overflow-y: auto;
  z-index: 50; /* Higher z-index, but still below navbar (100) */
}

/* Ensure the ToC navigation specifically accounts for navbar */
body.post aside nav {
  position: relative;
  z-index: 50;
  padding-top: 1rem; /* Additional top padding within the nav */
  max-height: calc(100vh - 160px) !important; /* Override theme's max-height */
}

/* Additional fix for the main content wrapper to ensure proper stacking context */
#wrapper {
  position: relative;
  z-index: 1;
}

/* Ensure the main content doesn't interfere with ToC positioning */
main {
  position: relative;
  z-index: 1;
}

/* Prevent anchor jumps from hiding under navbar */
.prose h1[id],
.prose h2[id],
.prose h3[id],
.prose h4[id],
.prose h5[id],
.prose h6[id] {
  scroll-margin-top: calc(var(--navbar-height) + 20px);
}