/* ==================================================================
   GACHIAKUTA MANGA READER STYLESHEET
   Aesthetic: Dark cyber-industrial / graffiti trash-core
   ================================================================== */

:root {
  --bg-dark: #000000;
  --bg-panel: rgba(8, 8, 8, 0.85);
  --bg-card: #080808;
  --bg-hover: #121212;
  --border-color: rgba(255, 255, 255, 0.1);
  --accent-red: #ff2a5f;
  --accent-cyan: #00f5d4;
  --accent-yellow: #ffb703;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --reader-width: 800px;
  --font-mono: 'Source Code Pro', monospace;
  --font-sans: 'Source Code Pro', monospace;
  --header-h: 70px;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-mono);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Background Particle Canvas Override */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.6;
}

/* Main Container */
.gachi-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 90px 20px 60px;
}

/* Hero Section */
.hero-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 30px;
  background: var(--bg-panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  position: relative;
  overflow: hidden;
  margin-bottom: 40px;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent-red), var(--accent-cyan));
}

.cover-wrapper {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7);
  aspect-ratio: 2/3;
  border: 1px solid var(--border-color);
}

.cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.hero-card:hover .cover-img {
  transform: scale(1.03);
}

.hero-info {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-header {
  margin-bottom: 15px;
}

.badge-tag {
  display: inline-block;
  background: rgba(255, 42, 95, 0.15);
  color: var(--accent-red);
  border: 1px solid rgba(255, 42, 95, 0.4);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.manga-title {
  font-family: var(--font-mono);
  font-optical-sizing: auto;
  font-size: 2.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #ffffff 30%, var(--accent-red));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  margin-bottom: 8px;
}

.manga-author {
  color: var(--text-muted);
  font-size: 0.95rem;
  letter-spacing: 1px;
}

.synopsis {
  color: #cbd5e1;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 15px 0 20px;
  max-width: 800px;
}

.stats-grid {
  display: flex;
  gap: 20px;
  margin-bottom: 25px;
}

.stat-item {
  background: rgba(0, 0, 0, 0.4);
  padding: 10px 16px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.action-buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-red), #b91c1c);
  color: #fff;
  border: none;
  padding: 14px 28px;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(255, 42, 95, 0.4);
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 42, 95, 0.6);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 14px 24px;
  font-family: var(--font-mono);
  font-size: 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Directory Section */
.directory-section {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.directory-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border-color);
}

.directory-title {
  font-size: 1.4rem;
  letter-spacing: 1px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}

.search-box {
  position: relative;
  min-width: 250px;
}

.search-input {
  width: 100%;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 15px 10px 38px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  transition: border-color 0.2s;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.filter-range {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.range-btn {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.range-btn:hover,
.range-btn.active {
  background: var(--accent-cyan);
  color: #000;
  font-weight: 700;
  border-color: var(--accent-cyan);
}

/* Chapter Grid */
.chapter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.chapter-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  padding: 14px 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.chapter-card:hover {
  background: var(--bg-hover);
  border-color: var(--accent-red);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(255, 42, 95, 0.2);
}

.chapter-card.read {
  opacity: 0.65;
  border-color: rgba(255, 255, 255, 0.05);
}

.chapter-card.current {
  border-color: var(--accent-cyan);
  background: rgba(0, 245, 212, 0.08);
}

.chapter-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;

  /* Prevent text overflow for long titles */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chapter-card-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.read-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
}

/* ==================================================================
   READER VIEW & FLOATING TOOLBAR
   ================================================================== */
.reader-view {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: #000;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.reader-view.active {
  opacity: 1;
  pointer-events: auto;
}

/* Floating Toolbar */
.reader-toolbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background: rgba(10, 12, 18, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 10000;
  transition: transform 0.3s ease;
}

.reader-toolbar.hidden {
  transform: translateY(-100%);
}

.toolbar-left,
.toolbar-right,
.toolbar-center {
  display: flex;
  align-items: center;
  gap: 12px;
}

.toolbar-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.toolbar-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.4);
}

.select-chapter {
  background: #121520;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  max-width: 220px;
  cursor: pointer;
}

.select-chapter:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

.page-indicator {
  font-size: 0.85rem;
  color: var(--text-muted);
  background: rgba(0, 0, 0, 0.5);
  padding: 6px 12px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Reader Display Container */
.reader-viewport {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding-top: 70px;
  padding-bottom: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  scroll-behavior: smooth;
  position: relative;
}

/* Webtoon / Vertical Strip Mode */
.vertical-strip {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: var(--reader-width);
  gap: 4px;
  margin: 0 auto;
  transition: max-width 0.2s ease;
}

.manga-page-img {
  width: 100%;
  height: auto;
  display: block;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.8);
  background: #111;
  min-height: 300px;
  object-fit: contain;
}

/* Single / Double Flip Mode */
.flip-view {
  display: none;
  width: 100%;
  height: 100%;
  justify-content: center;
  align-items: center;
  position: relative;
}

.flip-view.active {
  display: flex;
}

.flip-page-wrapper {
  max-width: 90vw;
  max-height: calc(100vh - 140px);
  display: flex;
  justify-content: center;
  align-items: center;
}

.flip-page-img {
  max-width: 100%;
  max-height: calc(100vh - 140px);
  object-fit: contain;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.9);
}

.flip-nav-area {
  position: absolute;
  top: 60px;
  bottom: 0;
  width: 25%;
  cursor: pointer;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
}

.flip-nav-area:hover {
  opacity: 1;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.4), transparent);
}

.flip-nav-area.right:hover {
  background: linear-gradient(-90deg, rgba(0, 0, 0, 0.4), transparent);
}

.flip-nav-area.left {
  left: 0;
}

.flip-nav-area.right {
  right: 0;
}

.nav-arrow {
  background: rgba(0, 0, 0, 0.8);
  border: 1px solid var(--border-color);
  color: #fff;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

/* Floating Bottom Controls */
.reader-bottom-bar {
  position: fixed;
  bottom: 15px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(10, 12, 18, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  padding: 8px 20px;
  display: flex;
  align-items: center;
  gap: 15px;
  z-index: 10000;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
  transition: transform 0.3s ease;
}

.reader-bottom-bar.hidden {
  transform: translate(-50%, 150%);
}

.bottom-slider {
  width: 180px;
  accent-color: var(--accent-red);
}

/* Chapter End Box */
.chapter-end-card {
  width: 100%;
  max-width: var(--reader-width);
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 35px 20px;
  text-align: center;
  margin: 40px auto;
}

.end-title {
  font-size: 1.5rem;
  color: var(--accent-cyan);
  margin-bottom: 10px;
}

.end-nav-buttons {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-top: 20px;
}

/* Responsive Rules */
@media (max-width: 860px) {
  .hero-card {
    grid-template-columns: 1fr;
  }

  .cover-wrapper {
    max-width: 220px;
    margin: 0 auto;
  }

  .manga-title {
    font-size: 2.1rem;
  }

  .stats-grid {
    flex-wrap: wrap;
  }

  .directory-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box {
    width: 100%;
  }

  .reader-toolbar {
    padding: 0 10px;
  }

  .toolbar-btn span {
    display: none;
  }

  .select-chapter {
    max-width: 140px;
  }
}