/* Reading Area Component Styles */

.reading-area {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl);
  min-height: calc(100vh - 120px);
  position: relative;
}

/* Book Container */
.book-container {
  display: flex;
  position: relative;
  max-width: 1200px;
  width: 100%;
  height: 700px;
  perspective: 2000px;
  filter: drop-shadow(var(--shadow-deep));
}

/* Book Pages */
.book-page {
  flex: 1;
  position: relative;
  padding: var(--spacing-xl);
  background: linear-gradient(
    135deg,
    var(--color-parchment) 0%,
    #F5EFE0 25%,
    var(--color-parchment) 50%,
    #E0D5B7 75%,
    var(--color-parchment-dark) 100%
  );
  border: 1px solid rgba(139, 115, 85, 0.3);
  overflow: hidden;
  transform-style: preserve-3d;
  backface-visibility: hidden;
}

/* Parchment texture overlay */
.book-page::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(139, 115, 85, 0.03) 2px,
      rgba(139, 115, 85, 0.03) 4px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 2px,
      rgba(139, 115, 85, 0.03) 2px,
      rgba(139, 115, 85, 0.03) 4px
    );
  opacity: 0.6;
  pointer-events: none;
}

/* Grunge overlay for aged effect */
.book-page::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(139, 115, 85, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(101, 84, 63, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, rgba(139, 115, 85, 0.06) 0%, transparent 40%);
  pointer-events: none;
}

/* Left Page Specific Styling */
.page-left {
  border-radius: 8px 0 0 8px;
  clip-path: polygon(
    0 2%,
    2% 0,
    98% 0,
    100% 1%,
    100% 99%,
    98% 100%,
    2% 100%,
    0 98%
  );
  box-shadow: 
    inset -10px 0 20px rgba(0, 0, 0, 0.1),
    inset 0 0 50px rgba(139, 115, 85, 0.1);
}

/* Right Page Specific Styling */
.page-right {
  border-radius: 0 8px 8px 0;
  clip-path: polygon(
    0 1%,
    2% 0,
    98% 0,
    100% 2%,
    100% 98%,
    98% 100%,
    2% 100%,
    0 99%
  );
  box-shadow: 
    inset 10px 0 20px rgba(0, 0, 0, 0.1),
    inset 0 0 50px rgba(139, 115, 85, 0.1);
}

/* Book Spine Shadow */
.book-spine {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 20px;
  transform: translateX(-50%);
  background: linear-gradient(
    to right,
    rgba(0, 0, 0, 0.3) 0%,
    rgba(0, 0, 0, 0.15) 50%,
    rgba(0, 0, 0, 0.3) 100%
  );
  box-shadow: 
    0 0 10px rgba(0, 0, 0, 0.5),
    inset 0 0 5px rgba(0, 0, 0, 0.3);
  pointer-events: none;
  z-index: 10;
}

/* Page Content */
.page-content {
  position: relative;
  z-index: 1;
  height: calc(100% - 40px);
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: var(--spacing-sm);
}

/* Custom scrollbar for page content */
.page-content::-webkit-scrollbar {
  width: 6px;
}

.page-content::-webkit-scrollbar-track {
  background: rgba(139, 115, 85, 0.1);
  border-radius: 3px;
}

.page-content::-webkit-scrollbar-thumb {
  background: rgba(139, 115, 85, 0.3);
  border-radius: 3px;
}

.page-content::-webkit-scrollbar-thumb:hover {
  background: rgba(139, 115, 85, 0.5);
}

/* Page Text */
.page-text {
  font-family: var(--font-gothic);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: #2A1515;
  text-align: justify;
  hyphens: auto;
  user-select: text;
}

.page-text p {
  color: #2A1515;
  margin-bottom: var(--spacing-md);
}

/* Drop Cap Styling */
.page-text::first-letter {
  font-size: 4em;
  line-height: 0.8;
  float: left;
  margin: 0.1em 0.1em 0 0;
  font-family: var(--font-gothic);
  color: var(--color-purple-deep);
  text-shadow: 
    0 0 10px rgba(255, 140, 66, 0.3),
    2px 2px 4px rgba(0, 0, 0, 0.3);
  font-weight: bold;
}

/* Page Numbers */
.page-number {
  position: absolute;
  bottom: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-gothic);
  font-size: 14px;
  color: rgba(26, 15, 15, 0.6);
  z-index: 2;
}

.page-left .page-number {
  left: auto;
  right: var(--spacing-md);
  transform: none;
}

.page-right .page-number {
  left: var(--spacing-md);
  right: auto;
  transform: none;
}

/* Wax Seal Bookmark */
.wax-seal-bookmark {
  position: absolute;
  top: -10px;
  right: 60px;
  width: 60px;
  height: 60px;
  z-index: 20;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.4));
  transition: transform var(--duration-normal) var(--easing-smooth);
}

.wax-seal-bookmark:hover {
  transform: scale(1.1) rotate(5deg);
}

.wax-seal-svg {
  width: 100%;
  height: 100%;
}

/* Navigation Arrows */
.nav-arrow {
  width: 60px;
  height: 60px;
  border: 2px solid var(--color-orange-candle);
  background: rgba(26, 15, 15, 0.8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-normal) var(--easing-smooth);
  position: relative;
  flex-shrink: 0;
}

.nav-arrow:hover:not(:disabled) {
  background: rgba(45, 27, 78, 0.9);
  box-shadow: var(--glow-candle);
  transform: scale(1.1);
}

.nav-arrow:active:not(:disabled) {
  transform: scale(0.95);
}

.nav-arrow:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  border-color: rgba(255, 140, 66, 0.3);
}

.arrow-icon {
  width: 32px;
  height: 32px;
  color: var(--color-orange-candle);
  transition: color var(--duration-fast);
}

.nav-arrow:hover:not(:disabled) .arrow-icon {
  color: #FFB366;
  filter: drop-shadow(0 0 8px var(--color-orange-candle));
}

/* Text Selection Highlight */
.page-text::selection {
  background: rgba(255, 140, 66, 0.3);
  color: var(--color-brown-dark);
  text-shadow: 0 0 8px rgba(255, 140, 66, 0.6);
}

.page-text::-moz-selection {
  background: rgba(255, 140, 66, 0.3);
  color: var(--color-brown-dark);
  text-shadow: 0 0 8px rgba(255, 140, 66, 0.6);
}

/* Highlight class for saved highlights */
.text-highlight {
  background: rgba(255, 140, 66, 0.25);
  box-shadow: 0 0 10px rgba(255, 140, 66, 0.4);
  border-radius: 2px;
  padding: 2px 0;
  cursor: pointer;
  transition: all var(--duration-fast);
}

.text-highlight:hover {
  background: rgba(255, 140, 66, 0.35);
  box-shadow: 0 0 15px rgba(255, 140, 66, 0.6);
}

/* Footnote Indicator */
.footnote-indicator {
  display: inline-block;
  width: 16px;
  height: 16px;
  margin: 0 2px;
  vertical-align: middle;
  opacity: 0.6;
  transition: opacity var(--duration-fast);
  cursor: help;
}

.footnote-indicator:hover {
  opacity: 1;
}

/* Page Flip Animation Classes */
.page-flipping {
  animation: pageFlip var(--page-flip-duration) var(--easing-smooth) forwards;
  z-index: 15;
}

.page-flipping-back {
  animation: pageFlipBack var(--page-flip-duration) var(--easing-smooth) forwards;
  z-index: 15;
}

/* Empty State */
.reading-area-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 500px;
  color: var(--color-parchment-dark);
  text-align: center;
  padding: var(--spacing-xl);
}

.reading-area-empty .empty-icon {
  font-size: 80px;
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}

.reading-area-empty .empty-text {
  font-family: var(--font-gothic);
  font-size: 24px;
  margin-bottom: var(--spacing-sm);
  color: var(--color-purple-deep);
}

.reading-area-empty .empty-hint {
  font-family: var(--font-handwritten);
  font-size: 18px;
  opacity: 0.7;
}

/* Page Flip Animations */

@keyframes pageFlip {
  0% {
    transform: perspective(2000px) rotateY(0deg);
    transform-origin: left center;
    box-shadow: 
      inset 10px 0 20px rgba(0, 0, 0, 0.1),
      -5px 0 20px rgba(0, 0, 0, 0.2);
  }
  25% {
    transform: perspective(2000px) rotateY(-45deg) translateZ(50px);
    box-shadow: 
      inset 10px 0 30px rgba(0, 0, 0, 0.2),
      -15px 0 40px rgba(0, 0, 0, 0.4);
  }
  50% {
    transform: perspective(2000px) rotateY(-90deg) translateZ(80px);
    box-shadow: 
      inset 10px 0 40px rgba(0, 0, 0, 0.3),
      -25px 0 60px rgba(0, 0, 0, 0.5);
  }
  75% {
    transform: perspective(2000px) rotateY(-135deg) translateZ(50px);
    box-shadow: 
      inset 10px 0 30px rgba(0, 0, 0, 0.2),
      -15px 0 40px rgba(0, 0, 0, 0.4);
  }
  100% {
    transform: perspective(2000px) rotateY(-180deg);
    box-shadow: 
      inset 10px 0 20px rgba(0, 0, 0, 0.1),
      -5px 0 20px rgba(0, 0, 0, 0.2);
  }
}

@keyframes pageFlipBack {
  0% {
    transform: perspective(2000px) rotateY(0deg);
    transform-origin: right center;
    box-shadow: 
      inset -10px 0 20px rgba(0, 0, 0, 0.1),
      5px 0 20px rgba(0, 0, 0, 0.2);
  }
  25% {
    transform: perspective(2000px) rotateY(45deg) translateZ(50px);
    box-shadow: 
      inset -10px 0 30px rgba(0, 0, 0, 0.2),
      15px 0 40px rgba(0, 0, 0, 0.4);
  }
  50% {
    transform: perspective(2000px) rotateY(90deg) translateZ(80px);
    box-shadow: 
      inset -10px 0 40px rgba(0, 0, 0, 0.3),
      25px 0 60px rgba(0, 0, 0, 0.5);
  }
  75% {
    transform: perspective(2000px) rotateY(135deg) translateZ(50px);
    box-shadow: 
      inset -10px 0 30px rgba(0, 0, 0, 0.2),
      15px 0 40px rgba(0, 0, 0, 0.4);
  }
  100% {
    transform: perspective(2000px) rotateY(180deg);
    box-shadow: 
      inset -10px 0 20px rgba(0, 0, 0, 0.1),
      5px 0 20px rgba(0, 0, 0, 0.2);
  }
}

/* Page Curvature Effect During Flip */
@keyframes pageCurvature {
  0%, 100% {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  }
  50% {
    clip-path: polygon(0 0, 100% 5%, 100% 95%, 0 100%);
  }
}

.page-flipping {
  animation: 
    pageFlip var(--page-flip-duration) var(--easing-smooth) forwards,
    pageCurvature var(--page-flip-duration) var(--easing-smooth) forwards;
}

.page-flipping-back {
  animation: 
    pageFlipBack var(--page-flip-duration) var(--easing-smooth) forwards,
    pageCurvature var(--page-flip-duration) var(--easing-smooth) forwards;
}

/* Glow Animation for Navigation Arrows */
@keyframes arrowGlow {
  0%, 100% {
    box-shadow: 0 0 10px rgba(255, 140, 66, 0.4);
  }
  50% {
    box-shadow: 0 0 20px rgba(255, 140, 66, 0.8);
  }
}

.nav-arrow:hover:not(:disabled) {
  animation: arrowGlow 2s ease-in-out infinite;
}

/* Whisper Text Tooltip */
.nav-arrow::after {
  content: attr(data-whisper);
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(26, 15, 15, 0.95);
  color: var(--color-orange-candle);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
  font-family: var(--font-handwritten);
  font-size: 14px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--easing-smooth);
  box-shadow: 0 0 10px rgba(255, 140, 66, 0.3);
  z-index: 100;
}

.nav-arrow:hover:not(:disabled)::after {
  opacity: 1;
}

/* Loading State for Page Content */
@keyframes pageContentFade {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-content.loading {
  animation: pageContentFade var(--duration-normal) var(--easing-smooth);
}

/* Selection Tooltip */
.selection-tooltip {
  position: fixed;
  display: flex;
  gap: var(--spacing-xs);
  background: rgba(26, 15, 15, 0.95);
  border: 2px solid var(--color-orange-candle);
  border-radius: 8px;
  padding: var(--spacing-xs);
  box-shadow: 
    0 0 20px rgba(255, 140, 66, 0.4),
    0 4px 12px rgba(0, 0, 0, 0.6);
  z-index: 1000;
  animation: tooltipFadeIn var(--duration-fast) var(--easing-smooth);
}

@keyframes tooltipFadeIn {
  from {
    opacity: 0;
    transform: translate(-50%, calc(-100% - 10px));
  }
  to {
    opacity: 1;
    transform: translate(-50%, -100%);
  }
}

.tooltip-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(45, 27, 78, 0.6);
  border: 1px solid rgba(255, 140, 66, 0.3);
  border-radius: 4px;
  color: var(--color-orange-candle);
  font-family: var(--font-handwritten);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--easing-smooth);
  white-space: nowrap;
}

.tooltip-btn:hover {
  background: rgba(45, 27, 78, 0.9);
  border-color: var(--color-orange-candle);
  box-shadow: 0 0 10px rgba(255, 140, 66, 0.4);
  transform: translateY(-2px);
}

.tooltip-btn:active {
  transform: translateY(0);
}

.tooltip-btn svg {
  width: 16px;
  height: 16px;
  color: var(--color-orange-candle);
}

.tooltip-btn span {
  color: var(--color-parchment);
}

/* ===== Loading Overlay ===== */
.loading-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  z-index: 100;
  animation: fadeIn var(--duration-normal) ease-out;
}

.loading-overlay {
  text-align: center;
  padding: var(--spacing-xl);
}

.loading-spinner {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.candle-flame {
  width: 20px;
  height: 40px;
  background: linear-gradient(to top, var(--color-accent), #FFD700);
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  animation: flicker 1.5s ease-in-out infinite;
  box-shadow: 0 0 20px var(--color-accent);
}

.candle-flame:nth-child(2) {
  animation-delay: 0.3s;
}

.candle-flame:nth-child(3) {
  animation-delay: 0.6s;
}

@keyframes flicker {
  0%, 100% {
    transform: scaleY(1) translateY(0);
    opacity: 1;
  }
  25% {
    transform: scaleY(1.1) translateY(-2px);
    opacity: 0.9;
  }
  50% {
    transform: scaleY(0.95) translateY(1px);
    opacity: 0.95;
  }
  75% {
    transform: scaleY(1.05) translateY(-1px);
    opacity: 0.92;
  }
}

.loading-text {
  font-family: var(--font-gothic);
  font-size: var(--font-size-xl);
  color: var(--color-parchment);
  margin-bottom: var(--spacing-sm);
  text-shadow: var(--glow-candle);
  animation: pulse 2s ease-in-out infinite;
}

.loading-filename {
  font-family: var(--font-handwritten);
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  font-style: italic;
}

/* ===== Error Overlay ===== */
.error-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(4px);
  z-index: 100;
  animation: fadeIn var(--duration-normal) ease-out;
}

.error-overlay {
  text-align: center;
  padding: var(--spacing-xl);
  max-width: 500px;
  background: var(--color-surface);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-deep);
}

.error-icon {
  font-size: 64px;
  margin-bottom: var(--spacing-md);
  animation: pulse 2s ease-in-out infinite;
}

.error-title {
  font-family: var(--font-gothic);
  font-size: var(--font-size-xxl);
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
  text-shadow: var(--glow-candle);
}

.error-message {
  font-family: var(--font-body);
  font-size: var(--font-size-md);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
  line-height: var(--line-height-relaxed);
}

.error-dismiss-btn {
  font-family: var(--font-gothic);
  font-size: var(--font-size-md);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-brown-medium);
  border: var(--border-thin);
  border-radius: var(--radius-md);
  color: var(--color-parchment);
  cursor: pointer;
  transition: var(--transition-all);
}

.error-dismiss-btn:hover {
  background: var(--color-brown-dark);
  border-color: var(--color-accent);
  box-shadow: var(--glow-candle);
  transform: translateY(-2px);
}

.error-dismiss-btn:active {
  transform: translateY(0);
}

/* ===== Text Highlight ===== */
.text-highlight {
  background: rgba(255, 140, 66, 0.3);
  box-shadow: 0 0 8px rgba(255, 140, 66, 0.4);
  border-radius: 2px;
  padding: 2px 0;
  cursor: pointer;
  transition: var(--transition-all);
}

.text-highlight:hover {
  background: rgba(255, 140, 66, 0.4);
  box-shadow: 0 0 12px rgba(255, 140, 66, 0.6);
}

/* ===== Selection Tooltip ===== */
.selection-tooltip {
  position: fixed;
  z-index: var(--z-tooltip);
  background: var(--color-surface);
  border: var(--border-ornate);
  border-radius: var(--radius-md);
  padding: var(--spacing-xs);
  box-shadow: var(--shadow-deep), var(--glow-candle-medium);
  display: flex;
  gap: var(--spacing-xs);
  animation: fadeIn var(--duration-fast) var(--easing-smooth);
}

.selection-tooltip::before {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid var(--color-orange-candle);
}

.tooltip-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(232, 220, 196, 0.1);
  border: 1px solid var(--color-parchment-dark);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: var(--transition-all);
  white-space: nowrap;
}

.tooltip-btn:hover {
  background: rgba(232, 220, 196, 0.2);
  border-color: var(--color-accent);
  box-shadow: var(--glow-ethereal);
  transform: translateY(-2px);
}

.tooltip-btn svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
}

.tooltip-btn span {
  font-size: var(--font-size-sm);
}

/* ===== Mobile Responsive Adjustments ===== */
@media (max-width: 768px) {
  .reading-area {
    padding: var(--spacing-md);
    gap: var(--spacing-md);
    min-height: calc(100vh - 80px);
  }

  /* Switch to single-page view on mobile */
  .book-container {
    height: auto;
    min-height: 500px;
    max-height: calc(100vh - 140px);
  }

  /* Hide left page on mobile, show only right page */
  .page-left {
    display: none;
  }

  .page-right {
    flex: 1;
    border-radius: var(--radius-md);
    clip-path: polygon(
      0 2%,
      2% 0,
      98% 0,
      100% 2%,
      100% 98%,
      98% 100%,
      2% 100%,
      0 98%
    );
  }

  /* Hide book spine on mobile */
  .book-spine {
    display: none;
  }

  /* Adjust page content padding */
  .book-page {
    padding: var(--spacing-lg);
  }

  /* Ensure minimum font size of 16px */
  .page-text {
    font-size: 16px;
    line-height: 1.7;
  }

  /* Adjust drop cap for mobile */
  .page-text::first-letter {
    font-size: 3em;
    margin: 0.05em 0.08em 0 0;
  }

  /* Optimize touch targets for navigation arrows */
  .nav-arrow {
    width: 50px;
    height: 50px;
    border-width: 2px;
  }

  .arrow-icon {
    width: 28px;
    height: 28px;
  }

  /* Adjust arrow whisper tooltip position */
  .nav-arrow::after {
    bottom: -35px;
    font-size: 12px;
    padding: 4px 8px;
  }

  /* Wax seal bookmark adjustment */
  .wax-seal-bookmark {
    width: 50px;
    height: 50px;
    right: 40px;
  }

  /* Selection tooltip adjustments */
  .selection-tooltip {
    padding: var(--spacing-xs);
    gap: var(--spacing-xs);
  }

  .tooltip-btn {
    padding: var(--spacing-xs);
    font-size: 12px;
    min-height: 44px;
    min-width: 44px;
  }

  .tooltip-btn svg {
    width: 18px;
    height: 18px;
  }

  /* Loading overlay adjustments */
  .loading-overlay,
  .error-overlay {
    padding: var(--spacing-lg);
    max-width: 90%;
  }

  .loading-text,
  .error-title {
    font-size: var(--font-size-lg);
  }

  .loading-filename,
  .error-message {
    font-size: var(--font-size-sm);
  }

  /* Empty state adjustments */
  .reading-area-empty {
    min-height: 400px;
    padding: var(--spacing-lg);
  }

  .reading-area-empty .empty-icon {
    font-size: 60px;
  }

  .reading-area-empty .empty-text {
    font-size: var(--font-size-lg);
  }

  .reading-area-empty .empty-hint {
    font-size: var(--font-size-base);
  }
}

/* Small mobile devices */
@media (max-width: 480px) {
  .reading-area {
    padding: var(--spacing-sm);
    gap: var(--spacing-sm);
  }

  .book-container {
    min-height: 400px;
  }

  .book-page {
    padding: var(--spacing-md);
  }

  .page-text {
    font-size: 16px;
  }

  .nav-arrow {
    width: 44px;
    height: 44px;
  }

  .arrow-icon {
    width: 24px;
    height: 24px;
  }

  .wax-seal-bookmark {
    width: 40px;
    height: 40px;
    right: 30px;
  }
}

/* Landscape mobile adjustments */
@media (max-width: 768px) and (orientation: landscape) {
  .book-container {
    max-height: calc(100vh - 100px);
    min-height: 300px;
  }

  .book-page {
    padding: var(--spacing-md);
  }

  .page-text {
    font-size: 15px;
    line-height: 1.6;
  }
}

/* ===== Loading and Error States ===== */
.loading-container,
.error-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(26, 15, 15, 0.9);
  z-index: var(--z-modal);
  animation: fadeIn var(--duration-normal) var(--easing-smooth);
}

.loading-overlay,
.error-overlay {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--color-surface);
  border: var(--border-ornate);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-deep), var(--glow-candle-medium);
  max-width: 400px;
}

.loading-spinner {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.candle-flame {
  width: 8px;
  height: 24px;
  background: linear-gradient(to top, var(--color-orange-candle), var(--color-orange-glow));
  border-radius: 50% 50% 0 0;
  animation: flicker 1s ease-in-out infinite;
}

.candle-flame:nth-child(2) {
  animation-delay: 0.2s;
}

.candle-flame:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes flicker {
  0%, 100% {
    opacity: 1;
    transform: scaleY(1);
  }
  50% {
    opacity: 0.7;
    transform: scaleY(0.8);
  }
}

.loading-text,
.error-title {
  font-family: var(--font-handwritten);
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.loading-filename,
.error-message {
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-style: italic;
}

.error-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
}

.error-dismiss-btn {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-surface);
  border: var(--border-medium);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-gothic);
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: var(--transition-all);
}

.error-dismiss-btn:hover {
  border-color: var(--color-accent);
  box-shadow: var(--glow-candle);
  transform: translateY(-2px);
}

/* Empty State */
.reading-area-empty {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 10;
  padding: var(--spacing-xl);
  background: rgba(26, 15, 15, 0.8);
  border: 2px solid var(--color-accent);
  border-radius: 8px;
  backdrop-filter: blur(10px);
  max-width: 500px;
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
  animation: float 3s ease-in-out infinite;
}

.empty-text {
  font-family: var(--font-handwritten);
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.empty-hint {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  opacity: 0.8;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}