/* Persistent Sidebar Design - Search & TOC */

/* Main layout container for posts */
.post-with-sidebar {
  display: grid;
  grid-template-columns: 240px 1fr 240px;
  gap: 5rem;
  max-width: 1600px;
  margin: 0 auto;
  padding: 2rem 2rem;
  position: relative;
}

/* Left sidebar - Search */
.sidebar-left {
  position: sticky;
  top: 100px;
  height: fit-content;
  max-height: calc(100vh - 120px);
  overflow-y: visible;
  justify-self: start;
  margin-left: -2rem;
}

/* Right sidebar - TOC */
.sidebar-right {
  position: sticky;
  top: 100px;
  height: fit-content;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  justify-self: end;
  margin-right: -2rem;
}

/* Search Widget */
.search-widget { background: transparent; border: none; padding: 0; margin: 0; }
.search-widget-header { display: none !important; }
.search-widget-minimal {
  width: 100%;
  padding: 0.625rem 1rem;
  border: 1px solid var(--border-medium, #D5CFC5);
  border-radius: 99px;
  font-size: 0.875rem;
  background: var(--cream, #F5F2ED);
  color: var(--charcoal, #2D2A26);
  transition: all 0.2s ease;
  outline: none;
}
.search-widget-minimal:focus {
  border-color: var(--forest, #2D5A3D);
  box-shadow: 0 0 0 3px rgba(45, 90, 61, 0.15);
}
.search-widget-minimal::placeholder { color: var(--muted, #6B665F); }

/* Search Results Dropdown */
.search-widget-results {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  right: 0;
  background: var(--white, #FFFFFF);
  border: 1px solid var(--border-light, #E5E0D8);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  max-height: 450px;
  overflow-y: auto;
  z-index: 9999;
  display: none;
}
.search-widget-results.active { display: block; }
.search-widget-result-header {
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted, #6B665F);
  border-bottom: 1px solid var(--border-light, #E5E0D8);
  background: var(--cream, #F5F2ED);
  border-radius: 12px 12px 0 0;
}
.search-widget-no-results {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted, #6B665F);
}
.search-widget-no-results svg { margin: 0 auto 0.75rem; opacity: 0.5; }
.search-widget-no-results p { font-size: 0.875rem; margin: 0; }
.search-widget-result-item {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border-light, #E5E0D8);
  cursor: pointer;
  transition: all 0.15s ease;
}
.search-widget-result-item:last-child { border-bottom: none; border-radius: 0 0 12px 12px; }
.search-widget-result-item:hover { background: var(--cream, #F5F2ED); }
.search-widget-result-item.selected { background: var(--forest-pale, #E8F0E9); }
.search-widget-result-section {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--forest, #2D5A3D);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.375rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.search-widget-result-preview {
  font-size: 0.8125rem;
  color: var(--charcoal, #2D2A26);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.search-widget-result-preview mark.search-match-highlight {
  background: rgba(45, 90, 61, 0.15);
  color: var(--forest, #2D5A3D);
  font-weight: 600;
  padding: 0 2px;
  border-radius: 2px;
}

/* TOC Widget */
.toc-widget {
  background: var(--white, #FFFFFF);
  border: 1px solid var(--border-light, #E5E0D8);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: all 0.3s ease;
}
.toc-widget.toc-collapsed { padding: 0.75rem 1rem; }
.toc-widget.toc-collapsed .toc-widget-header { margin-bottom: 0; }

.toc-widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-family: var(--font-ui, 'Space Grotesk', sans-serif);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--charcoal, #2D2A26);
  cursor: pointer;
  user-select: none;
}

/* TOC Header Controls */
.toc-header-controls {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* TOC Collapse All / Expand All Button */
.toc-collapse-all-btn {
  background: transparent;
  border: none;
  padding: 0.375rem;
  cursor: pointer;
  color: var(--muted, #6B665F);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}
.toc-collapse-all-btn:hover { 
  background: var(--cream, #F5F2ED); 
  color: var(--forest, #2D5A3D); 
}
.toc-collapse-all-btn svg {
  width: 14px;
  height: 14px;
}

/* TOC Collapse Button */
.toc-collapse-btn {
  background: transparent;
  border: none;
  padding: 0.25rem;
  cursor: pointer;
  color: var(--muted, #6B665F);
  border-radius: 6px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.toc-collapse-btn:hover { background: var(--cream, #F5F2ED); color: var(--forest, #2D5A3D); }
.toc-widget.toc-collapsed .toc-collapse-btn svg { transform: rotate(180deg); }
.toc-collapse-btn svg { transition: transform 0.3s ease; }

/* TOC Content with Accordion - FIXED */
.toc-widget-content { font-size: 0.8125rem; }
.toc-widget-content ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.toc-widget-content li { 
  margin: 0; 
  position: relative;
}

/* Toggle button - INSIDE LINK, LEFT SIDE */
.toc-section-toggle {
  width: 18px;
  height: 18px;
  min-width: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--muted, #6B665F);
  padding: 0;
  margin: 0 6px 0 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  border-radius: 4px;
  vertical-align: middle;
}
.toc-section-toggle:hover { 
  background: var(--cream, #F5F2ED);
  color: var(--forest, #2D5A3D); 
}
.toc-section-toggle svg {
  width: 10px;
  height: 10px;
  transition: transform 0.2s ease;
}

/* Rotate toggle when collapsed */
.toc-widget-content li.toc-collapsed .toc-section-toggle svg {
  transform: rotate(-90deg);
}

/* Links with toggle (parent sections) */
.toc-widget-content li.toc-has-children > a {
  display: flex;
  align-items: center;
  padding: 0.375rem 0.5rem;
  color: var(--charcoal, #2D2A26);
  font-weight: 500;
}

/* Regular links (without toggle) */
.toc-widget-content li:not(.toc-has-children) > a {
  display: block;
  padding: 0.375rem 0.5rem 0.375rem 1.5rem;
  color: var(--muted, #6B665F);
}

/* All links base styles */
.toc-widget-content a {
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.15s ease;
  line-height: 1.4;
}
.toc-widget-content a:hover {
  color: var(--forest, #2D5A3D);
  background: var(--cream, #F5F2ED);
}
.toc-widget-content a.active {
  color: var(--forest, #2D5A3D);
  background: var(--forest-pale, #E8F0E9);
  font-weight: 500;
}

/* Nested lists */
.toc-widget-content li > ul {
  padding-left: 0.5rem;
  margin-left: 0.5rem;
  border-left: 1px solid var(--border-light, #E5E0D8);
  overflow: hidden;
  transition: all 0.3s ease;
  max-height: 1000px;
}

/* Collapsed state for sections */
.toc-widget-content li.toc-collapsed > ul {
  max-height: 0;
  opacity: 0;
  margin-top: 0;
  margin-bottom: 0;
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--white, #FFFFFF);
  border: 1px solid var(--border-light, #E5E0D8);
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
  z-index: 50;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover {
  background: var(--forest, #2D5A3D);
  border-color: var(--forest, #2D5A3D);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(45, 90, 61, 0.25);
}
.back-to-top svg { width: 20px; height: 20px; }

/* Main content area adjustments */
.post-main-content { min-width: 0; }
.post-main-content :is(h1, h2, h3, h4, h5, h6)[id] {
  scroll-margin-top: 150px;
  scroll-snap-margin-top: 150px;
}

/* Reading Progress Bar */
.reading-progress-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: transparent;
  z-index: 100;
}
.reading-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--forest, #2D5A3D), var(--teal, #3D6B6B));
  width: 0%;
  transition: width 0.1s ease;
}

/* Dark Mode */
[data-theme="dark"],
html.dark {
  .search-widget, .toc-widget {
    background: var(--white, #1A211C);
    border-color: var(--border-light, #2A3530);
  }
  .search-widget-header, .toc-widget-header { color: var(--charcoal, #E8EDE9); }
  .search-widget-minimal {
    background: var(--cream, #0D120F);
    border-color: var(--border-medium, #3D4A40);
    color: var(--charcoal, #E8EDE9);
  }
  .search-widget-minimal:focus {
    border-color: var(--forest, #7AB88A);
    box-shadow: 0 0 0 3px rgba(122, 184, 138, 0.15);
  }
  .search-widget-results {
    background: var(--white, #1A211C);
    border-color: var(--border-light, #2A3530);
  }
  .search-widget-result-header {
    background: var(--cream-dark, #141A16);
    border-color: var(--border-light, #2A3530);
    color: var(--muted, #8A9A8A);
  }
  .search-widget-result-item { border-color: var(--border-light, #2A3530); }
  .search-widget-result-item:hover { background: var(--cream-dark, #141A16); }
  .search-widget-result-item.selected { background: var(--forest-pale, #1E3A28); }
  .search-widget-result-section { color: var(--forest, #7AB88A); }
  .search-widget-result-preview { color: var(--charcoal, #E8EDE9); }
  .search-widget-result-preview mark.search-match-highlight {
    background: rgba(122, 184, 138, 0.2);
    color: var(--forest, #7AB88A);
  }
  .toc-widget-content li > ul { border-color: var(--border-light, #2A3530); }
  .toc-widget-content a { color: var(--muted, #8A9A8A); }
  .toc-widget-content a:hover {
    color: var(--forest, #7AB88A);
    background: var(--cream-dark, #141A16);
  }
  .toc-widget-content a.active {
    color: var(--forest, #7AB88A);
    background: var(--forest-pale, #1E3A28);
  }
  .toc-section-toggle { color: var(--muted, #8A9A8A); }
  .toc-section-toggle:hover { 
    background: var(--cream-dark, #141A16);
    color: var(--forest, #7AB88A); 
  }
  .back-to-top {
    background: var(--white, #1A211C);
    border-color: var(--border-light, #2A3530);
    color: var(--charcoal, #E8EDE9);
  }
  .back-to-top:hover {
    background: var(--forest, #7AB88A);
    border-color: var(--forest, #7AB88A);
    color: var(--cream, #0D120F);
  }
  .reading-progress-bar {
    background: linear-gradient(90deg, var(--forest, #7AB88A), var(--teal, #9FD4D4));
  }
  .toc-collapse-btn { color: var(--muted, #8A9A8A); }
  .toc-collapse-btn:hover { background: var(--cream-dark, #141A16); color: var(--forest, #7AB88A); }
}

/* Mobile Responsive */
@media (max-width: 1400px) {
  .post-with-sidebar {
    grid-template-columns: 200px 1fr 200px;
    gap: 3rem;
    padding: 2rem;
  }
  .sidebar-left { margin-left: -1rem; }
  .sidebar-right { margin-right: -1rem; }
}
@media (max-width: 1024px) {
  .post-with-sidebar {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 1rem;
  }

  /* Hide search sidebar on mobile — not useful stacked below content */
  .sidebar-left {
    display: none !important;
  }

  /* Hide TOC sidebar on mobile — not useful stacked above/below content according to user preference */
  .sidebar-right {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
  }

  .post-main-content { order: 1; }

  /* TOC widget: compact header, scrollable content when open */
  .toc-widget { padding: 0.875rem; }
  .toc-widget-header { cursor: pointer; }

  /* When expanded, cap height so it doesn't push content off screen */
  .toc-widget:not(.toc-collapsed) .toc-widget-content {
    max-height: 55vh;
    overflow-y: auto;
  }

  .back-to-top { bottom: 5rem; right: 1rem; width: 44px; height: 44px; }
}
@media (min-width: 1025px) and (max-width: 1400px) {
  .post-with-sidebar { grid-template-columns: 1fr 220px; gap: 3rem; }
  .sidebar-left { display: none; }
}

/* Hide original modal elements */
.sidebar-active #search-modal,
.sidebar-active #search-overlay,
.sidebar-active #toc-card,
.sidebar-active #toc-overlay { display: none !important; }