* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0d0d0d;
  --bg-secondary: #1a1a2e;
  --bg-card: #16213e;
  --text-primary: #eee;
  --text-secondary: #aaa;
  --accent: #e94560;
  --accent-hover: #ff6b6b;
  --header-height: 56px;
  --footer-height: 60px;
  --safe-area-inset-bottom: env(safe-area-inset-bottom, 0px);
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}

#app {
  min-height: 100%;
}

/* Views */
.view {
  display: none;
  min-height: 100vh;
}

.view.active {
  display: block;
}

/* Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 12px;
  height: var(--header-height);
  padding: 0 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.app-header h1 {
  font-size: 1.25rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.back-btn, .menu-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: background 0.2s;
}

.back-btn:hover, .menu-btn:hover {
  background: rgba(255,255,255,0.1);
}

/* Home View - Webtoon Grid */
.webtoon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
  padding: 16px;
  padding-bottom: calc(16px + var(--safe-area-inset-bottom));
}

@media (min-width: 600px) {
  .webtoon-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 24px;
    padding: 24px;
  }
}

.webtoon-card {
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-card);
}

.webtoon-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.webtoon-card:active {
  transform: scale(0.98);
}

.webtoon-card img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  background: var(--bg-secondary);
}

.webtoon-card-info {
  padding: 12px;
}

.webtoon-card-info h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.webtoon-card-info p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Webtoon Detail View */
.webtoon-detail {
  padding-bottom: calc(24px + var(--safe-area-inset-bottom));
}

.cover-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 16px;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

@media (min-width: 600px) {
  .cover-section {
    flex-direction: row;
    align-items: flex-start;
    gap: 32px;
    padding: 32px;
    max-width: 800px;
    margin: 0 auto;
  }
}

#webtoon-cover {
  width: 180px;
  height: 240px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  background: var(--bg-card);
}

@media (min-width: 600px) {
  #webtoon-cover {
    width: 220px;
    height: 293px;
  }
}

.webtoon-meta {
  text-align: center;
  margin-top: 16px;
}

@media (min-width: 600px) {
  .webtoon-meta {
    text-align: left;
    margin-top: 0;
    flex: 1;
  }
}

#webtoon-premise {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 12px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

@media (min-width: 600px) {
  .tags {
    justify-content: flex-start;
  }
}

.tag {
  background: var(--bg-card);
  color: var(--text-secondary);
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 0.8rem;
}

/* Characters Section */
.characters-section {
  padding: 16px;
  max-width: 800px;
  margin: 0 auto;
}

.characters-section h2 {
  font-size: 1.1rem;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.characters-grid {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

.character-card {
  flex: 0 0 auto;
  width: 140px;
  background: var(--bg-card);
  border-radius: 12px;
  overflow: hidden;
}

.character-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  background: var(--bg-secondary);
}

.character-info {
  padding: 12px;
}

.character-info h3 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.character-info p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

.chapter-list {
  padding: 16px;
  max-width: 800px;
  margin: 0 auto;
}

.chapter-list h2 {
  font-size: 1.1rem;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.chapter-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--bg-card);
  border-radius: 12px;
  margin-bottom: 12px;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.chapter-item:hover {
  background: var(--bg-secondary);
}

.chapter-item:active {
  transform: scale(0.98);
}

.chapter-num {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 40px;
}

.chapter-info h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.chapter-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Reader View */
#reader-view {
  background: #000;
}

.reader-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 8px;
  background: linear-gradient(180deg, rgba(0,0,0,0.9) 0%, transparent 100%);
  transition: opacity 0.3s, transform 0.3s;
}

.reader-header.hidden {
  opacity: 0;
  transform: translateY(-100%);
  pointer-events: none;
}

.reader-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  min-width: 0;
}

.reader-title span {
  font-size: 0.85rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.reader-title span:first-child {
  font-weight: 600;
}

.reader-title span:last-child {
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.reader-content {
  min-height: 100vh;
  padding-top: var(--header-height);
  padding-bottom: calc(var(--footer-height) + var(--safe-area-inset-bottom));
}

.reader-content img {
  display: block;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  background: var(--bg-secondary);
}

.reader-content .segment {
  position: relative;
}

.reader-content .segment-placeholder {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  aspect-ratio: 800/600;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.reader-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: calc(var(--footer-height) + var(--safe-area-inset-bottom));
  padding: 0 16px;
  padding-bottom: var(--safe-area-inset-bottom);
  background: linear-gradient(0deg, rgba(0,0,0,0.9) 0%, transparent 100%);
  transition: opacity 0.3s, transform 0.3s;
}

.reader-footer.hidden {
  opacity: 0;
  transform: translateY(100%);
  pointer-events: none;
}

.nav-btn {
  background: var(--accent);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 24px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
}

.nav-btn:hover {
  background: var(--accent-hover);
}

.nav-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#chapter-indicator {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Loading */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: var(--text-secondary);
}

/* Error */
.error-message {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-secondary);
}

.error-message h2 {
  color: var(--accent);
  margin-bottom: 12px;
}

/* Scroll behavior */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

/* Hide scrollbar for cleaner mobile experience */
::-webkit-scrollbar {
  width: 0;
  height: 0;
}

/* End of Chapter Card */
.chapter-end-card {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 24px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.chapter-end-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.chapter-end-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.chapter-end-nav {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.chapter-end-btn {
  padding: 16px 32px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform 0.2s, background 0.2s;
}

.chapter-end-btn:active {
  transform: scale(0.95);
}

.chapter-end-btn.primary {
  background: var(--accent);
  color: white;
}

.chapter-end-btn.primary:hover {
  background: var(--accent-hover);
}

.chapter-end-btn.secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.2);
}

.chapter-end-btn.secondary:hover {
  background: var(--bg-secondary);
}

.chapter-end-complete {
  margin-top: 24px;
  font-size: 0.9rem;
  color: var(--accent);
}

/* Text Overlays */
.text-overlay {
  position: relative;
  padding: 16px;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
}

.narration {
  background: rgba(0, 0, 0, 0.8);
  color: #ccc;
  padding: 12px 16px;
  border-radius: 4px;
  font-style: italic;
  font-size: 0.9rem;
  line-height: 1.5;
  text-align: center;
  border-left: 3px solid var(--accent);
}

.speech-bubble {
  background: white;
  color: #222;
  padding: 12px 16px;
  border-radius: 16px;
  max-width: 85%;
  position: relative;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  align-self: flex-start;
}

.speech-bubble.right {
  align-self: flex-end;
}

.speech-bubble::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 20px;
  border-width: 0 8px 8px;
  border-style: solid;
  border-color: transparent transparent white;
}

.speech-bubble.right::before {
  left: auto;
  right: 20px;
}

.speech-bubble .speaker {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
  text-transform: uppercase;
}

.speech-bubble .text {
  font-size: 0.95rem;
  line-height: 1.4;
  margin: 0;
}

.sfx {
  font-size: 1.5rem;
  font-weight: 900;
  color: #fff;
  text-shadow:
    2px 2px 0 #000,
    -2px -2px 0 #000,
    2px -2px 0 #000,
    -2px 2px 0 #000,
    0 0 10px var(--accent);
  text-align: center;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Character Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.85);
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--bg-secondary);
  border-radius: 16px;
  max-width: 400px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.5);
  border: none;
  color: white;
  font-size: 1.5rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.7);
}

.modal-content img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 16px 16px 0 0;
  background: var(--bg-card);
}

.modal-body {
  padding: 20px;
}

.modal-body h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.modal-body p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.trait-item {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.5;
}

.trait-item strong {
  color: var(--text-primary);
}

.trait-badge {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
}

.character-card {
  cursor: pointer;
}

/* Scene title */
.scene-title {
  max-width: 800px;
  margin: 0 auto;
  padding: 24px 16px 12px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.scene-title:first-child {
  border-top: none;
  padding-top: 0;
}

/* More chapters notice */
.more-chapters-notice {
  text-align: center;
  padding: 24px 16px;
  color: var(--text-secondary);
  font-style: italic;
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 8px;
}