/* Refined, Elegant Spacing for Multi-Page Layout */

/* Page Titles (H1: L1 Model Architectures, T1 Foundation) */
.md-typeset h1 {
  margin-top: 2rem !important;
  margin-bottom: 1.5rem !important;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--md-default-fg-color);
}

/* Sections (H2: 1. What Is an Inference Engine?) */
.md-typeset h2 {
  margin-top: 3rem !important;
  margin-bottom: 1rem !important;
  font-weight: 600;
  color: var(--md-primary-color);
  border-bottom: none;
}

/* Sub-sections (H3) */
.md-typeset h3 {
  margin-top: 2rem !important;
  margin-bottom: 0.75rem !important;
  font-weight: 600;
}

/* ADJACENT SIBLING RULES to prevent massive gaps */

/* If a Section (H2) directly follows a Title (H1), squash the spacing */
.md-typeset h1 + h2 {
  margin-top: 1rem !important;
}

/* If a Sub-section (H3) directly follows a Section (H2), squash the spacing */
.md-typeset h2 + h3 {
  margin-top: 0.5rem !important;
}

/* Keep the blockquotes clean */
.md-typeset blockquote {
  margin-top: 1rem;
  margin-bottom: 1.5rem;
}

/* ==========================================================================
   LEFT SIDEBAR / TOC STYLING
   ========================================================================== */

/* Make the TOC container tighter */
.md-nav__item--active > .md-nav__list {
  padding-top: 0;
  padding-bottom: 0;
}

/* Target all Table of Contents links (which always have a hash #) */
.md-nav__link[href*="#"] {
  font-size: 0.7rem !important; /* Noticeably smaller than the 0.8rem default */
  line-height: 1.15 !important;
  
  /* Ultra-compact vertical padding */
  padding-top: 0.15rem !important;
  padding-bottom: 0.15rem !important;
  
  /* Softer neutral color so it recedes into the background */
  color: #6b7280 !important; 
  font-weight: 400 !important;
}

/* De-emphasize nested items (like "At a Glance" under an H2) even more */
.md-nav__list .md-nav__list .md-nav__link[href*="#"] {
  font-size: 0.65rem !important;
  color: #9ca3af !important;
}

/* Active and Hover States - "The Blueish Colour" */
.md-nav__link[href*="#"]:hover,
.md-nav__link[href*="#"].md-nav__link--active {
  color: #4051b5 !important; /* MkDocs Indigo Blue */
  font-weight: 600 !important;
}

/* ==========================================================================
   SCROLLBAR REMOVAL (Invisible but still scrollable)
   ========================================================================== */

/* Completely hide the WebKit scrollbar everywhere */
::-webkit-scrollbar {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
}

/* Hide scrollbar for Firefox */
* {
  scrollbar-width: none !important;
}