.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  z-index: 10000;
}

.reading-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-primary, #D4AF37), var(--accent-secondary, #06b6d4));
  width: 0;
  transition: width 0.1s ease-out;
  box-shadow: 0 0 10px var(--accent-primary, #D4AF37);
}

@media (prefers-reduced-motion: reduce) {
  .reading-progress-bar {
    transition: none;
  }
}

.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  min-width: 56px;
  min-height: 56px;
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  z-index: 9998;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  animation: whatsapp-pulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-float:focus {
  outline: 3px solid var(--accent-primary);
  outline-offset: 3px;
}

.whatsapp-float svg {
  width: 32px;
  height: 32px;
}

@keyframes whatsapp-pulse {
  0%, 100% {
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.6);
  }
}

@media (max-width: 768px) {
  .whatsapp-float {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
  }

  .whatsapp-float svg {
    width: 28px;
    height: 28px;
  }
}

.breadcrumb {
  background: var(--nav-bg, rgba(26, 26, 46, 0.95));
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  z-index: 9997;
}

.breadcrumb-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumb-item {
  font-size: 0.875rem;
  color: var(--text-muted, #9ca3af);
}

.breadcrumb-item a {
  color: var(--text-muted, #9ca3af);
  text-decoration: none;
  transition: color 0.2s;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
}

.breadcrumb-item a:hover {
  color: var(--accent-primary, #D4AF37);
  background: rgba(255, 255, 255, 0.05);
}

.breadcrumb-item:last-child {
  color: var(--accent-primary, #D4AF37);
  font-weight: 600;
}

.breadcrumb-item:not(:last-child)::after {
  content: '/';
  margin-left: 0.5rem;
  color: var(--text-muted, #9ca3af);
}

@media (max-width: 768px) {
  .breadcrumb {
    padding: 0.5rem 1rem;
  }

  .breadcrumb-list {
    flex-wrap: wrap;
  }

  .breadcrumb-item {
    font-size: 0.8125rem;
  }
}