.preview-banner {
  position: fixed;
  right: 16px;
  bottom: 88px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(24, 27, 35, 0.9);
  color: #f7f9ff;
  border-radius: 999px;
  padding: 8px 12px;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.preview-banner .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #7cf9c7;
  box-shadow: 0 0 12px rgba(124, 249, 199, 0.8);
}

.preview-panel {
  margin: 14px 0 0;
  border: 1px solid rgba(255, 138, 76, 0.35);
  background: linear-gradient(135deg, rgba(255, 138, 76, 0.12), rgba(84, 133, 255, 0.08));
  border-radius: 18px;
  padding: 14px 16px;
  color: var(--ink, #1f2430);
}

.preview-panel .label {
  display: inline-block;
  margin-bottom: 8px;
  padding: 5px 8px;
  border-radius: 999px;
  background: rgba(255, 138, 76, 0.14);
  color: var(--primary-ink, #7a3a0f);
  font-size: 10px;
  letter-spacing: 0.08em;
  font-weight: 700;
  text-transform: uppercase;
}

.preview-panel h3 {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.2;
}

.preview-panel p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--muted, #5d6982);
}

.preview-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.preview-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid rgba(0, 0, 0, 0.06);
  font-size: 12px;
  font-weight: 600;
}

.preview-toggle {
  margin-left: auto;
  color: var(--ink, #1f2430);
}

.preview-toggle button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 8px 12px;
  background: var(--primary, #ff8a4c);
  color: white;
  font-weight: 700;
  cursor: pointer;
}

.preview-toggle button.secondary {
  background: rgba(0, 0, 0, 0.08);
  color: var(--ink, #1f2430);
}

.learning-card {
  margin-top: 12px;
  border: 1px solid rgba(255, 138, 76, 0.25);
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(255, 138, 76, 0.06), rgba(84, 133, 255, 0.04));
}

.learning-card-toggle {
  width: 100%;
  border: 0;
  background: transparent;
  color: inherit;
  padding: 0;
  cursor: pointer;
}

.learning-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 12px 14px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink, #1f2430);
}

.learning-card-header .icon {
  width: 18px;
  height: 18px;
}

.learning-card-header strong {
  flex: 1;
}

.learning-card .icon:last-child {
  transition: transform 0.2s ease;
}

.learning-card.expanded .icon:last-child {
  transform: rotate(180deg);
}

.learning-card-content {
  padding: 0 14px 14px;
  color: var(--muted, #5d6982);
  line-height: 1.6;
}

.learning-card-content p,
.learning-card-content ol {
  margin: 0;
}

.learning-card-content ol {
  padding-left: 18px;
  margin-top: 8px;
}

@media (max-width: 640px) {
  .preview-banner {
    right: 12px;
    bottom: 76px;
  }
}