/* ==========================================================================
   沉浸式试读器样式 - READER.CSS
   ========================================================================== */

.reader-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 6, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 200;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.reader-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.reader-container {
  width: 92%;
  max-width: 900px;
  height: 90vh;
  background: #0f141e;
  color: #e2e8f0;
  border: 1px solid rgba(212, 163, 89, 0.3);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 30px rgba(212, 163, 89, 0.1);
  overflow: hidden;
  transform: translateY(20px) scale(0.98);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.reader-modal-overlay.open .reader-container {
  transform: translateY(0) scale(1);
}

/* 阅读器顶部控制栏 */
.reader-header {
  padding: 16px 24px;
  background: rgba(10, 14, 22, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

.reader-book-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.reader-book-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: #f8fafc;
}

.reader-chapter-badge {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  padding: 3px 10px;
  background: rgba(212, 163, 89, 0.15);
  color: var(--accent-gold);
  border-radius: 999px;
  border: 1px solid rgba(212, 163, 89, 0.3);
}

.reader-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.reader-tool-btn {
  padding: 6px 12px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #94a3b8;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.reader-tool-btn:hover {
  color: #f8fafc;
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-gold);
}

.reader-close-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #cbd5e1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all 0.2s;
}

.reader-close-btn:hover {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.4);
}

/* 阅读设置浮层面板 */
.reader-settings-panel {
  display: none;
  position: absolute;
  top: 64px;
  right: 24px;
  background: #151c2a;
  border: 1px solid rgba(212, 163, 89, 0.4);
  border-radius: 12px;
  padding: 20px;
  width: 300px;
  box-shadow: 0 16px 36px rgba(0,0,0,0.6);
  z-index: 50;
}

.reader-settings-panel.active {
  display: block;
  animation: fadeIn 0.2s ease;
}

.settings-group {
  margin-bottom: 16px;
}

.settings-group:last-child {
  margin-bottom: 0;
}

.settings-label {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: #94a3b8;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.theme-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.reader-theme-btn {
  height: 32px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-family: var(--font-sans);
  font-weight: 500;
  transition: transform 0.15s;
}

.reader-theme-btn.active {
  border: 2px solid var(--accent-gold);
  transform: scale(1.05);
}

.r-theme-dark { background: #0f141e; color: #e2e8f0; }
.r-theme-parchment { background: #f4ede1; color: #2c241c; }
.r-theme-green { background: #e2eddf; color: #1e3321; }
.r-theme-night { background: #000000; color: #888888; }

.font-size-control {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0,0,0,0.25);
  border-radius: 6px;
  padding: 4px 8px;
}

.font-size-btn {
  width: 28px;
  height: 28px;
  border-radius: 4px;
  background: rgba(255,255,255,0.08);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.current-font-size {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: #cbd5e1;
}

/* 章节选择抽屉 */
.chapter-nav-bar {
  padding: 10px 24px;
  background: rgba(15, 20, 30, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  gap: 12px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.chapter-tab-chip {
  white-space: nowrap;
  padding: 6px 14px;
  border-radius: 6px;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: #94a3b8;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
}

.chapter-tab-chip:hover {
  color: #f1f5f9;
  background: rgba(255, 255, 255, 0.08);
}

.chapter-tab-chip.active {
  background: rgba(212, 163, 89, 0.15);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  font-weight: 600;
}

/* 阅读正文区 */
.reader-body-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 40px 60px;
  scroll-behavior: smooth;
}

.reader-content-wrap {
  max-width: 680px;
  margin: 0 auto;
}

.reader-chapter-heading {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 36px;
  letter-spacing: 0.06em;
  position: relative;
  padding-bottom: 20px;
}

.reader-chapter-heading::after {
  content: '❖';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.9rem;
  color: var(--accent-gold);
}

.reader-text-paragraph {
  font-family: var(--font-serif);
  line-height: 2.1;
  text-indent: 2.4em;
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}

/* 阅读器主题覆盖 */
.reader-container[data-theme="parchment"] {
  background: #f4ede1;
  color: #2c241c;
}
.reader-container[data-theme="parchment"] .reader-header,
.reader-container[data-theme="parchment"] .chapter-nav-bar,
.reader-container[data-theme="parchment"] .reader-footer {
  background: #eae2d3;
  color: #2c241c;
  border-color: rgba(60, 45, 30, 0.15);
}
.reader-container[data-theme="parchment"] .reader-book-title,
.reader-container[data-theme="parchment"] .reader-chapter-heading {
  color: #1a1612;
}

.reader-container[data-theme="green"] {
  background: #e4efe2;
  color: #1c2b1e;
}
.reader-container[data-theme="green"] .reader-header,
.reader-container[data-theme="green"] .chapter-nav-bar,
.reader-container[data-theme="green"] .reader-footer {
  background: #d5e4d2;
  color: #1c2b1e;
  border-color: rgba(30, 60, 35, 0.15);
}
.reader-container[data-theme="green"] .reader-book-title,
.reader-container[data-theme="green"] .reader-chapter-heading {
  color: #122013;
}

.reader-container[data-theme="night"] {
  background: #000000;
  color: #8c929c;
}
.reader-container[data-theme="night"] .reader-header,
.reader-container[data-theme="night"] .chapter-nav-bar,
.reader-container[data-theme="night"] .reader-footer {
  background: #080808;
  color: #8c929c;
  border-color: #222;
}

/* 阅读器底部进度栏 */
.reader-footer {
  padding: 12px 24px;
  background: rgba(10, 14, 22, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: #64748b;
  flex-shrink: 0;
}

.reader-progress-bar-wrap {
  flex: 1;
  max-width: 240px;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  overflow: hidden;
  margin: 0 16px;
}

.reader-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--accent-gold);
  transition: width 0.1s linear;
}

@media (max-width: 768px) {
  .reader-container {
    width: 100%;
    height: 100vh;
    border-radius: 0;
    border: none;
  }
  .reader-body-scroll {
    padding: 24px 18px;
  }
  .reader-header {
    padding: 12px 16px;
  }
}