/* ============================================
   SkyCetus 2.0 — 小说阅读器
   沉浸阅读体验
   ============================================ */

.reader-page { background: var(--space-abyss); }

/* Top Nav */
.reader-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 2rem;
  background: rgba(2, 2, 8, 0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 100;
}

.reader-back {
  font-size: 0.85rem;
  color: var(--white-40);
  transition: color var(--t-fast);
}

.reader-back:hover { color: var(--gold); }

.reader-title-bar {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--white-60);
}

.reader-controls {
  display: flex;
  gap: 0.5rem;
}

.reader-ctrl-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--white-40);
  font-size: 0.75rem;
  transition: all var(--t-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.reader-ctrl-btn:hover {
  border-color: var(--white-30);
  color: var(--white);
}

/* Content */
.reader-content {
  max-width: 700px;
  margin: 0 auto;
  padding: 6rem 2rem 5rem;
  min-height: 100vh;
}

.reader-loading {
  text-align: center;
  padding: 6rem 2rem;
}

.reader-loading-icon {
  font-size: 2rem;
  color: var(--gold);
  display: block;
  margin-bottom: 1rem;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

.reader-loading p { color: var(--white-30); font-size: 0.9rem; }

/* Chapter Header */
.chapter-header {
  text-align: center;
  margin-bottom: 3.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--white-08);
}

.chapter-volume {
  font-size: 0.82rem;
  color: var(--gold);
  letter-spacing: 0.12em;
  margin-bottom: 0.75rem;
}

.chapter-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 300;
  color: var(--white);
}

/* Chapter Body */
.chapter-body {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--white-70);
  line-height: 2.2;
  letter-spacing: 0.02em;
}

.chapter-body p {
  margin-bottom: 1.5em;
  text-indent: 2em;
}

.chapter-body p:first-child {
  text-indent: 0;
}

.chapter-body .section-break {
  text-align: center;
  color: var(--white-20);
  margin: 2.5em 0;
  font-style: normal;
  text-indent: 0;
  letter-spacing: 0.5em;
}

/* Locked State */
.chapter-locked {
  text-align: center;
  padding: 5rem 2rem;
}

.locked-icon {
  font-size: 2.5rem;
  color: var(--gold);
  display: block;
  margin-bottom: 1.5rem;
}

.locked-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--white);
  margin-bottom: 0.75rem;
}

.locked-desc {
  font-size: 0.9rem;
  color: var(--white-40);
  margin-bottom: 2rem;
}

/* Bottom Nav */
.reader-bottom {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 2rem;
  background: rgba(2, 2, 8, 0.95);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-subtle);
  z-index: 100;
}

.reader-prev, .reader-next, .reader-toc-link {
  font-size: 0.85rem;
  color: var(--white-40);
  transition: color var(--t-fast);
  min-width: 80px;
}

.reader-prev:hover, .reader-next:hover, .reader-toc-link:hover { color: var(--gold); }

.reader-next { text-align: right; }
.reader-toc-link { text-align: center; }

.reader-prev.disabled, .reader-next.disabled {
  color: var(--white-15);
  pointer-events: none;
}

/* Responsive */
@media (max-width: 768px) {
  .reader-content { padding: 5rem 1.25rem 4.5rem; }
  .reader-nav { padding: 0.5rem 1.25rem; }
  .reader-bottom { padding: 0.5rem 1.25rem; }
  .chapter-body { font-size: 1rem; line-height: 2; }
}