/* Nerally Table of Contents - Floating Navigation */

/* ============================================
   FLOATING TOC BUTTON & PANEL
   ============================================ */

#nerally-toc-floating {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 9999;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Right position (default - δίπλα από scrollbar) */
#nerally-toc-floating.nerally-toc-right {
  right: 20px;
}

/* Left position */
#nerally-toc-floating.nerally-toc-left {
  left: 20px;
}

/* Toggle Button (3 dots) */
#nerally-toc-toggle {
  width: 48px;
  height: 140px;
  background: rgba(255, 255, 255, 0.95);
  border: none;
  border-radius: 24px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px 0;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

#nerally-toc-toggle:hover {
  background: rgba(255, 255, 255, 1);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
  transform: scale(1.05);
}

/* Dots inside button */
.toc-dots {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toc-dots .dot {
  width: 8px;
  height: 8px;
  background: #374151;
  border-radius: 50%;
  transition: all 0.3s ease;
}

#nerally-toc-toggle:hover .dot {
  background: #1f2937;
  transform: scale(1.2);
}

/* TOC Panel (dropdown) */
#nerally-toc-panel {
  position: absolute;
  top: 0;
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  padding: 20px;
  min-width: 280px;
  max-width: 350px;
  max-height: 80vh;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Panel positioning based on button position */
.nerally-toc-right #nerally-toc-panel {
  right: 70px;
}

.nerally-toc-left #nerally-toc-panel {
  left: 70px;
}

/* Panel visible state */
#nerally-toc-floating.toc-open #nerally-toc-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* TOC Header */
.toc-header {
  font-size: 14px;
  font-weight: 600;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid #e5e7eb;
}

/* TOC List */
.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.toc-item a {
  display: block;
  padding: 10px 12px;
  color: #374151;
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  border-radius: 8px;
  transition: all 0.2s ease;
  position: relative;
}

.toc-item a:hover {
  background: #f3f4f6;
  color: #1f2937;
  transform: translateX(4px);
}

.toc-item a.active {
  background: #dbeafe;
  color: #1e40af;
  font-weight: 600;
}

/* Indentation for different heading levels */
.toc-item.toc-h2 a {
  padding-left: 12px;
  font-weight: 600;
}

.toc-item.toc-h3 a {
  padding-left: 28px;
  font-size: 13px;
}

.toc-item.toc-h4 a {
  padding-left: 44px;
  font-size: 12px;
  color: #6b7280;
}

/* Active indicator */
.toc-item a.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 20px;
  background: #1e40af;
  border-radius: 2px;
}

/* Custom scrollbar for TOC panel */
#nerally-toc-panel::-webkit-scrollbar {
  width: 6px;
}

#nerally-toc-panel::-webkit-scrollbar-track {
  background: #f3f4f6;
  border-radius: 10px;
}

#nerally-toc-panel::-webkit-scrollbar-thumb {
  background: #d1d5db;
  border-radius: 10px;
}

#nerally-toc-panel::-webkit-scrollbar-thumb:hover {
  background: #9ca3af;
}

/* ============================================
   FULL-WIDTH ARTICLE LAYOUT
   ============================================ */

body.nerally-toc-full-width.single-post .site-content {
  max-width: 100% !important;
  padding: 0 !important;
}

body.nerally-toc-full-width.single-post .entry-content {
  max-width: 1200px !important;
  margin: 0 auto !important;
  padding: 40px 60px !important;
}

body.nerally-toc-full-width.single-post .sidebar,
body.nerally-toc-full-width.single-post #secondary {
  display: none !important;
}

body.nerally-toc-full-width.single-post article {
  width: 100% !important;
  max-width: 100% !important;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
  #nerally-toc-floating {
    display: none; /* Hide on mobile - can be changed to bottom sheet */
  }
  
  body.nerally-toc-full-width.single-post .entry-content {
    padding: 20px !important;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  #nerally-toc-panel {
    min-width: 240px;
    max-width: 280px;
  }
  
  .nerally-toc-right #nerally-toc-panel {
    right: 60px;
  }
  
  .nerally-toc-left #nerally-toc-panel {
    left: 60px;
  }
}

/* ============================================
   SMOOTH SCROLL BEHAVIOR
   ============================================ */

html {
  scroll-behavior: smooth;
}

/* Highlight target heading when clicked */
:target,
.toc-target-highlight {
  animation: highlight-heading 2s ease;
}

@keyframes highlight-heading {
  0% {
    background: rgba(219, 234, 254, 0.5);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.3);
  }
  100% {
    background: transparent;
    box-shadow: none;
  }
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */

#nerally-back-to-top {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.95);
  border: none;
  border-radius: 50%;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 9998;
  backdrop-filter: blur(10px);
}

#nerally-back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

#nerally-back-to-top:hover {
  background: #ffffff;
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.2);
  transform: translateX(-50%) translateY(-4px);
}

#nerally-back-to-top svg {
  width: 24px;
  height: 24px;
  fill: #374151;
  transition: fill 0.2s ease;
}

#nerally-back-to-top:hover svg {
  fill: #1f2937;
}

/* ============================================
   BACK TO ARTICLES BUTTON
   ============================================ */

#nerally-back-to-articles {
  position: fixed;
  top: 120px;
  left: 20px;
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.95);
  border: none;
  border-radius: 50%;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 9998;
  backdrop-filter: blur(10px);
}

#nerally-back-to-articles:hover {
  background: #ffffff;
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.2);
  transform: translateX(-4px);
}

#nerally-back-to-articles svg {
  width: 24px;
  height: 24px;
  fill: #374151;
  transition: fill 0.2s ease;
}

#nerally-back-to-articles:hover svg {
  fill: #1f2937;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

#nerally-toc-toggle:focus {
  outline: 3px solid #3b82f6;
  outline-offset: 2px;
}

.toc-item a:focus {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  #nerally-toc-floating,
  #nerally-toc-panel,
  #nerally-toc-toggle,
  .toc-item a {
    transition: none !important;
  }
  
  html {
    scroll-behavior: auto;
  }
}

/* ============================================
   RELATED ARTICLES WIDGET (Δείτε Επίσης)
   ============================================ */

#nerally-related-articles {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 24px;
  margin: 40px 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

#nerally-related-articles h3 {
  font-size: 18px;
  font-weight: 600;
  color: #1f2937;
  margin: 0 0 16px 0;
  padding-bottom: 12px;
  border-bottom: 2px solid #e5e7eb;
}

.related-articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
}

.related-article-item {
  display: flex;
  flex-direction: column;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s ease;
  text-decoration: none;
}

.related-article-item:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.related-article-thumb {
  width: 100%;
  height: 150px;
  object-fit: cover;
  background: #f3f4f6;
}

.related-article-content {
  padding: 12px;
}

.related-article-title {
  font-size: 14px;
  font-weight: 600;
  color: #1f2937;
  margin: 0 0 8px 0;
  line-height: 1.4;
}

.related-article-excerpt {
  font-size: 13px;
  color: #6b7280;
  line-height: 1.5;
  margin: 0;
}

.related-article-meta {
  font-size: 12px;
  color: #9ca3af;
  margin-top: 8px;
}