/* ==========================================
   Navigation System Styling
   ========================================== */

/* Book Navigation Bar - OT/NT Pages */
.book-navigation-bar {
  background: #f5f5f5;
  border-bottom: 2px solid #e0e0e0;
  padding: 1rem 0;
  margin: 2rem 0;
  overflow-x: auto;
}

.book-nav-compact {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0 1rem;
}

.book-nav-label {
  font-weight: 700;
  color: #1a3a52;
  white-space: nowrap;
  font-size: 0.95rem;
}

.book-nav-list {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.book-nav-link {
  display: inline-block;
  padding: 0.5rem 0.8rem;
  background: white;
  border: 1px solid #d0d0d0;
  border-radius: 4px;
  color: #1a3a52;
  text-decoration: none;
  font-size: 0.85rem;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.book-nav-link:hover {
  background: #1a3a52;
  color: white;
  border-color: #1a3a52;
}

/* Chapter Navigation Bar - Book Pages */
.chapter-navigation-bar {
  background: #fff8f0;
  border-left: 4px solid #b8860b;
  padding: 1.5rem;
  margin: 2rem 0;
  border-radius: 6px;
}

.chapter-nav-compact {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.chapter-nav-label {
  font-weight: 700;
  color: #1a3a52;
  white-space: nowrap;
  font-size: 1rem;
}

.chapter-nav-list {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.chapter-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 0.5rem;
  background: white;
  border: 2px solid #b8860b;
  border-radius: 6px;
  color: #1a3a52;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s ease;
  cursor: pointer;
}

.chapter-nav-btn:hover {
  background: #b8860b;
  color: white;
  transform: translateY(-2px);
}

.chapter-nav-btn.active {
  background: #b8860b;
  color: white;
  font-weight: 700;
}

/* Chapter Navigation Buttons - Chapter Pages */
.chapter-nav-buttons {
  margin: 2rem 0;
}

.chapter-nav-footer {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.chapter-nav-footer .btn {
  flex: 1;
  min-width: 200px;
  max-width: 300px;
  text-align: center;
}

.chapter-nav-footer .btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Back to Testament Button */
.back-to-testament-btn-container {
  margin: 2rem 0;
  text-align: center;
}

.back-to-testament-btn-container .btn {
  display: inline-block;
  min-width: 250px;
}

/* ==========================================
   Responsive Design
   ========================================== */

@media (max-width: 768px) {
  .book-nav-compact {
    padding: 0 0.75rem;
    gap: 0.75rem;
  }

  .book-nav-link {
    padding: 0.4rem 0.6rem;
    font-size: 0.75rem;
  }

  .chapter-nav-compact {
    gap: 0.75rem;
  }

  .chapter-nav-label {
    font-size: 0.9rem;
  }

  .chapter-nav-list {
    gap: 0.3rem;
  }

  .chapter-nav-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 0.3rem;
    font-size: 0.8rem;
  }

  .chapter-nav-footer .btn {
    min-width: 140px;
    max-width: 100%;
    padding: 0.6rem 0.8rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .book-navigation-bar {
    padding: 0.75rem 0;
    margin: 1rem 0;
  }

  .book-nav-compact {
    padding: 0 0.5rem;
    gap: 0.5rem;
  }

  .book-nav-label {
    font-size: 0.85rem;
  }

  .book-nav-link {
    padding: 0.3rem 0.5rem;
    font-size: 0.7rem;
  }

  .chapter-navigation-bar {
    padding: 1rem;
    margin: 1.5rem 0;
  }

  .chapter-nav-compact {
    gap: 0.5rem;
    flex-direction: column;
  }

  .chapter-nav-label {
    font-size: 0.85rem;
  }

  .chapter-nav-list {
    width: 100%;
    gap: 0.25rem;
  }

  .chapter-nav-btn {
    min-width: 32px;
    height: 32px;
    font-size: 0.75rem;
  }

  .chapter-nav-footer {
    flex-direction: column;
    gap: 0.75rem;
  }

  .chapter-nav-footer .btn {
    width: 100%;
    min-width: auto;
    padding: 0.7rem 0.5rem;
    font-size: 0.85rem;
  }

  .back-to-testament-btn-container {
    margin: 1.5rem 0;
  }

  .back-to-testament-btn-container .btn {
    width: 100%;
    min-width: auto;
    padding: 0.7rem 0.5rem;
  }
}

/* Horizontal scroll for many chapters */
@media (max-width: 600px) {
  .book-nav-list,
  .chapter-nav-list {
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }

  .book-nav-list {
    flex-wrap: nowrap;
  }

  .chapter-nav-list {
    flex-wrap: nowrap;
  }
}