/**
 * Glossary Styling
 * Integrates with Material for MkDocs theme
 */

/* ============================================================================
   GLOSSARY TERM LINKS (in content)
   ============================================================================ */

.glossary-term {
  border-bottom: 1px dotted var(--md-typeset-color);
  cursor: help;
  text-decoration: none;
  transition: border-color 0.2s ease;
  color: inherit;
}

.glossary-term:hover {
  border-bottom-color: var(--md-accent-fg-color);
}

/* ============================================================================
   TOOLTIP (Desktop)
   ============================================================================ */

.glossary-tooltip {
  position: absolute;
  z-index: 1000;
  max-width: 480px; /* Increased from 320px */
  background: var(--md-default-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  padding: 18px 24px; /* Increased padding */
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  pointer-events: none;
}

.glossary-tooltip.visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto; /* Allow interaction with tooltip */
  cursor: text; /* Show text cursor for selection */
}

.glossary-tooltip-term {
  font-weight: 600;
  font-size: 1.6em; /* 150% larger (1.05 * 1.5) */
  /* color: var(--md-primary-fg-color); */
  color: var(--md-default-fg-color);
  margin-bottom: 6px;
  user-select: text; /* Allow text selection */
}

.glossary-tooltip-full-form {
  font-style: italic;
  font-size: 1.35em; /* 150% larger (0.9 * 1.5) */
  color: var(--md-default-fg-color--light);
  margin-bottom: 12px;
  user-select: text;
}

.glossary-tooltip-definition {
  font-size: 1.4em;
  line-height: 1.6;
  margin-bottom: 12px;
  user-select: text;
}

.glossary-tooltip-category {
  margin-top: 8px;
}

.glossary-tooltip .category-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.9em;
  border-radius: 12px;
  background: var(--md-primary-fg-color);
  color: #ffffff; /* Always white */
}

/* ============================================================================
   MOBILE TRAY (Tap to open on mobile)
   ============================================================================ */

.glossary-mobile-tray {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--md-default-bg-color);
  border-top: 1px solid var(--md-default-fg-color--lightest);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.15);
  z-index: 1001;
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  max-height: 50vh;
  overflow-y: auto;
}

.glossary-mobile-tray.visible {
  transform: translateY(0);
}

.mobile-tray-handle {
  height: 4px;
  width: 40px;
  background: var(--md-default-fg-color--lighter);
  border-radius: 2px;
  margin: 8px auto;
}

.mobile-tray-content {
  padding: 16px 20px 24px;
  position: relative;
}

.mobile-tray-close {
  position: absolute;
  top: 8px;
  right: 12px;
  background: none;
  border: none;
  font-size: 28px;
  color: var(--md-default-fg-color--light);
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-tray-term {
  font-weight: 600;
  font-size: 1.2em;
  /* color: var(--md-primary-fg-color); */
  color: var(--md-default-fg-color);
  margin-bottom: 8px;
}

.mobile-tray-full-form {
  font-style: italic;
  font-size: 0.95em;
  color: var(--md-default-fg-color--light);
  margin-bottom: 12px;
}

.mobile-tray-definition {
  line-height: 1.6;
  margin-bottom: 12px;
}

.mobile-tray-category {
  margin-top: 12px;
}

/* ============================================================================
   GLOSSARY PAGE
   ============================================================================ */

.glossary-filters {
  margin-bottom: 2rem;
  padding: 1rem;
  background: var(--md-code-bg-color);
  border-radius: 4px;
}

.glossary-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.filter-label {
  font-weight: 600;
  margin-right: 0.5rem;
  color: var(--md-default-fg-color--light);
}

.category-filter-btn {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  font-size: 0.85em;
  border-radius: 16px;
  background: var(--md-default-bg-color);
  color: var(--md-default-fg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.category-filter-btn:hover {
  background: var(--md-accent-fg-color--transparent);
  border-color: var(--md-accent-fg-color);
}

.glossary-categories .category-filter-btn.active {
  background: var(--md-primary-fg-color);
  color: #ffffff; /* Always white */
  border-color: var(--md-primary-fg-color);
}

.glossary-actions {
  margin-bottom: 2rem;
  text-align: right;
}

#glossary-export-pdf {
  background: var(--md-primary-fg-color);
  color: #ffffff; /* Always white */
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9em;
  transition: opacity 0.2s ease;
}

#glossary-export-pdf:hover {
  opacity: 0.9;
}

#glossary-export-pdf::before {
  content: "⬇ "; /* Universal download arrow */
}

.glossary-section {
  margin-bottom: 3rem;
}

.glossary-letter-heading {
  font-size: 2rem;
  font-weight: 300;
  color: var(--md-typeset-color); /* Use typeset color instead of primary */
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--md-default-fg-color--lighter);
  padding-bottom: 0.5rem;
}

.glossary-entry {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
}

.glossary-entry:last-child {
  border-bottom: none;
}

.glossary-entry h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-size: 1.3rem;
}

.glossary-full-form {
  font-style: italic;
  color: var(--md-default-fg-color--light);
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.glossary-definition {
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.glossary-entry .term-category-pill {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.8em;
  border-radius: 12px;
  background: var(--md-primary-fg-color--light);
  color: #ffffff;
  text-decoration: none;
  transition: all 0.2s ease;
}

.glossary-entry .term-category-pill:hover {
  background: var(--md-primary-fg-color);
  color: #ffffff; /* Always white */
}

/* ============================================================================
   WAVE NAVIGATION (Desktop)
   ============================================================================ */

/* Pulse animation for active dot */
@keyframes nav-dot-pulse {
  0%, 100% {
    box-shadow: 0 0 6px var(--md-primary-fg-color);
  }
  50% {
    box-shadow: 0 0 12px var(--md-primary-fg-color), 0 0 20px var(--md-primary-fg-color);
  }
}

.glossary-vertical-nav {
  position: fixed;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  z-index: 100;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  cursor: grab;
  transition: top 0.15s ease-out;
  -webkit-tap-highlight-color: transparent; /* Remove tap highlight */
  tap-highlight-color: transparent;
  touch-action: none; /* Enable touch handling */
}

/* Wider hover/touch area using pseudo-element */
.glossary-vertical-nav::before {
  content: '';
  position: absolute;
  left: -50px; /* Extended touch area for tablets */
  right: -50px;
  top: -30px;
  bottom: -30px;
  z-index: -1;
  pointer-events: auto;
}

.glossary-vertical-nav.dragging {
  cursor: grabbing !important;
  transition: none; /* Disable transition when dragging for immediate response */
  filter: drop-shadow(0 0 8px var(--md-primary-fg-color)); /* Subtle glow while dragging */
}

.nav-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--md-default-fg-color--lighter);
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0.4;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-user-drag: none; /* Prevent image-like dragging */
  -webkit-tap-highlight-color: transparent; /* Remove tap highlight */
  tap-highlight-color: transparent;
  pointer-events: auto;
  position: relative; /* For ripple effect */
  min-width: 8px; /* Ensure touch target */
  min-height: 8px;
}

/* Ripple effect on touch/click */
.nav-dot::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 0;
  height: 0;
  border-radius: 50%;
  background: radial-gradient(circle, var(--md-primary-fg-color) 0%, transparent 70%);
  opacity: 0;
  transition: width 0.3s ease-out, height 0.3s ease-out, opacity 0.3s ease-out;
  pointer-events: none;
}

.nav-dot.ripple::before {
  width: 28px;
  height: 28px;
  opacity: 1; /* Full opacity with gradient doing the fade */
}

.nav-dot.active {
  opacity: 1;
  background: var(--md-primary-fg-color);
  transform: scale(1.6); /* Larger active state */
  box-shadow: 0 0 6px var(--md-primary-fg-color); /* Subtle glow */
  animation: nav-dot-pulse 2s ease-in-out infinite; /* Gentle pulsing */
}

.nav-hover-circle {
  position: absolute;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--md-primary-fg-color);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4); /* Enhanced shadow */
  border: 2px solid var(--md-default-bg-color);
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  z-index: 1000;
}

.nav-hover-circle.visible {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1.15); /* Slightly larger for emphasis */
}

.nav-hover-circle .hover-letter {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3); /* Enhanced readability */
}

/* ============================================================================
   MOBILE NAVIGATION (Horizontal swipeable slider)
   ============================================================================ */

@media (max-width: 768px) {
  .glossary-vertical-nav {
    display: none !important;
  }

  .glossary-mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 70px; /* Increased to prevent clipping */
    background: var(--md-default-bg-color);
    border-top: 1px solid var(--md-default-fg-color--lightest);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1);
    overflow: visible; /* Allow circle to appear above */
  }

  .mobile-nav-track {
    display: flex;
    gap: 0;
    align-items: center;
    justify-content: space-evenly; /* Evenly space dots across full width */
    padding: 0 1rem; /* Small padding on edges */
    overflow: visible; /* Allow circle to show */
    scrollbar-width: none;
    -ms-overflow-style: none;
    width: 100%;
    height: 100%;
    touch-action: none; /* Prevent default touch actions */
    position: relative;
    -webkit-tap-highlight-color: transparent; /* Remove tap highlight */
    tap-highlight-color: transparent; /* Remove tap highlight */
    user-select: none; /* Prevent text selection on rapid taps */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    cursor: grab; /* Show grab cursor for mouse dragging */
  }

  .mobile-nav-track:active {
    cursor: grabbing; /* Show grabbing cursor when dragging */
  }

  .mobile-nav-track::-webkit-scrollbar {
    display: none;
  }

  .mobile-nav-dot {
    width: 12px;
    height: 12px;
    min-width: 12px;
    max-width: 12px; /* Prevent stretching */
    border-radius: 50%;
    background: var(--md-default-fg-color--lighter);
    cursor: pointer;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0.4;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-user-drag: none; /* Prevent image-like dragging */
    -webkit-tap-highlight-color: transparent; /* Remove tap highlight */
    tap-highlight-color: transparent; /* Remove tap highlight */
    pointer-events: auto;
    position: relative; /* For ripple effect */
    /* Performance optimizations */
    transform: translateZ(0); /* Force GPU acceleration */
    backface-visibility: hidden;
  }
  
  /* Ripple effect on touch */
  .mobile-nav-dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, var(--md-primary-fg-color) 0%, transparent 70%);
    opacity: 0;
    transition: width 0.3s ease-out, height 0.3s ease-out, opacity 0.3s ease-out;
    pointer-events: none;
  }
  
  .mobile-nav-dot.ripple::before {
    width: 32px;
    height: 32px;
    opacity: 1; /* Full opacity with gradient doing the fade */
  }

  .mobile-nav-dot.active {
    opacity: 1;
    background: var(--md-primary-fg-color);
    transform: scale(1.8); /* Larger active state for better visibility */
    box-shadow: 0 0 8px var(--md-primary-fg-color); /* Subtle glow effect */
  }

  .mobile-hover-circle {
    position: fixed; /* Fixed to viewport */
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--md-primary-fg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4); /* Stronger shadow for better visibility */
    border: 2px solid var(--md-default-bg-color); /* Border for contrast */
    bottom: 80px; /* Above mobile nav */
    z-index: 1000; /* Above everything */
    transform: translate(-50%, 0) scale(0.8);
  }

  .mobile-hover-circle.visible {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0) scale(1.1); /* Slightly larger for emphasis */
  }

  .mobile-hover-circle .hover-letter {
    font-size: 20px;
    font-weight: 700;
    color: #ffffff; /* Always white */
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2); /* Better readability */
  }

  .md-content__inner {
    padding-bottom: 90px; /* Increased for larger mobile nav */
  }
}

/* ============================================================================
   PRINT STYLES (for PDF export)
   ============================================================================ */

@media print {
  .glossary-vertical-nav,
  .glossary-mobile-nav,
  .glossary-mobile-tray,
  .glossary-filters,
  .glossary-actions,
  .md-sidebar,
  .md-header,
  .md-footer {
    display: none !important;
  }

  .glossary-entry {
    page-break-inside: avoid;
  }

  .glossary-section {
    page-break-after: avoid;
  }
}

/* ============================================================================
   DARK MODE ADJUSTMENTS
   ============================================================================ */

[data-md-color-scheme="slate"] .glossary-tooltip,
[data-md-color-scheme="slate"] .glossary-mobile-tray {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

[data-md-color-scheme="slate"] .nav-hover-circle,
[data-md-color-scheme="slate"] .mobile-hover-circle {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.6);
  border: 3px solid rgba(255, 255, 255, 0.1); /* Lighter border in dark mode */
}

[data-md-color-scheme="slate"] .nav-hover-circle,
[data-md-color-scheme="slate"] .mobile-hover-circle {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}