/* === Empty State === */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 40px;
  color: var(--color-text-secondary);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1.1rem;
  color: var(--color-text);
  margin-bottom: 12px;
}

.empty-state p {
  font-size: 0.9rem;
  max-width: 500px;
  line-height: 1.7;
  margin-bottom: 8px;
}

.empty-state .strategy-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 24px;
  width: 100%;
  max-width: 600px;
}

.strategy-card {
  padding: 16px;
  border-radius: var(--radius);
  text-align: left;
}

.strategy-card.seo { background: var(--color-seo-bg); border-left: 3px solid var(--color-seo); }
.strategy-card.aeo { background: var(--color-aeo-bg); border-left: 3px solid var(--color-aeo); }
.strategy-card.geo { background: var(--color-geo-bg); border-left: 3px solid var(--color-geo); }

.strategy-card h4 {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.strategy-card.seo h4 { color: var(--color-seo); }
.strategy-card.aeo h4 { color: var(--color-aeo); }
.strategy-card.geo h4 { color: var(--color-geo); }

.strategy-card p {
  font-size: 0.75rem;
  margin: 0;
  color: var(--color-text-secondary);
}

/* === Meta Preview === */
.meta-preview {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 20px;
}

.meta-preview h3 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.meta-item {
  margin-bottom: 12px;
}

.meta-item-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.meta-item-value {
  font-size: 0.9rem;
  color: var(--color-text);
  padding: 6px 10px;
  background: var(--color-bg);
  border-radius: 6px;
  border: 1px solid var(--color-border);
}

.meta-item-value.title-preview {
  color: #1a0dab;
  font-size: 1.1rem;
  font-weight: 500;
  border: none;
  background: none;
  padding: 0;
}

[data-theme="dark"] .meta-item-value.title-preview {
  color: #8ab4f8;
}

.meta-item-value.url-preview {
  color: #006621;
  font-size: 0.8rem;
  border: none;
  background: none;
  padding: 0;
}

.meta-item-value.desc-preview {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  border: none;
  background: none;
  padding: 0;
}

.meta-variants {
  margin-top: 8px;
}

.meta-variant {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  padding: 4px 8px;
  background: var(--color-bg);
  border-radius: 4px;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.meta-variant .variant-num {
  font-weight: 600;
  color: var(--color-accent);
  font-size: 0.75rem;
}

/* === Accordion Section === */
.accordion-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  overflow: hidden;
}

.accordion-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
}

.accordion-header:hover {
  background: var(--color-bg);
}

.heading-level-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 22px;
  padding: 0 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--font-mono);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.accordion-title {
  flex: 1;
  font-weight: 600;
  font-size: 0.95rem;
}

.accordion-arrow {
  font-size: 0.65rem;
  color: var(--color-text-secondary);
  transition: transform 0.2s;
}

.accordion-panel {
  padding: 0 16px 16px 16px;
  border-top: 1px solid var(--color-border);
}

/* === Section Content === */
.section-content {
  padding-top: 12px;
}

.word-count-target {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-bottom: 10px;
  font-style: italic;
}

.keywords-block {
  font-size: 0.82rem;
  margin-bottom: 10px;
  padding: 6px 10px;
  background: var(--color-bg);
  border-radius: 6px;
}

.key-points {
  list-style: none;
  padding: 0;
  margin-bottom: 12px;
}

.key-points li {
  position: relative;
  padding-left: 18px;
  font-size: 0.88rem;
  margin-bottom: 4px;
  line-height: 1.5;
}

.key-points li::before {
  content: ">";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.section-content h4 {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* === Note Blocks === */
.note-block {
  border-radius: 6px;
  padding: 10px 12px;
  margin-bottom: 8px;
  font-size: 0.82rem;
}

.note-block .note-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 4px;
}

.note-block ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.note-block li {
  padding-left: 14px;
  position: relative;
  margin-bottom: 2px;
  line-height: 1.5;
}

.note-block li::before {
  content: "-";
  position: absolute;
  left: 0;
  font-weight: 700;
}

.seo-note {
  background: var(--color-seo-bg);
  border-left: 3px solid var(--color-seo);
}

.seo-note .note-label { color: var(--color-seo); }
.seo-note li::before { color: var(--color-seo); }

.aeo-note {
  background: var(--color-aeo-bg);
  border-left: 3px solid var(--color-aeo);
}

.aeo-note .note-label { color: var(--color-aeo); }
.aeo-note li::before { color: var(--color-aeo); }

.geo-note {
  background: var(--color-geo-bg);
  border-left: 3px solid var(--color-geo);
}

.geo-note .note-label { color: var(--color-geo); }
.geo-note li::before { color: var(--color-geo); }

/* === Link & Image Suggestions === */
.link-suggestions,
.image-suggestion {
  font-size: 0.82rem;
  margin-bottom: 8px;
  padding: 6px 10px;
  background: var(--color-bg);
  border-radius: 6px;
}

.link-suggestions ul {
  list-style: none;
  padding: 0;
  margin: 4px 0 0 0;
}

.link-suggestions li {
  margin-bottom: 2px;
}

/* === Schema Block === */
.schema-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
}

.schema-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.schema-block-header h4 {
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0;
}

.schema-block pre {
  padding: 14px;
  margin: 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
}

/* === Checklist === */
.checklist-category {
  margin-bottom: 20px;
}

.checklist-category h3 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
}

.checklist-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: 0.88rem;
}

.checklist-item input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.checklist-item .priority-high { color: var(--color-error); }
.checklist-item .priority-medium { color: var(--color-warning); }
.checklist-item .priority-low { color: var(--color-success); }

/* === Markdown Preview === */
.markdown-preview {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

/* === Summary Stats === */
.summary-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 16px;
  text-align: center;
}

.stat-card .stat-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-accent);
}

.stat-card .stat-label {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

/* === FAQ Preview === */
.faq-preview {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-top: 20px;
}

.faq-preview h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 6px;
  color: var(--color-text);
}

.faq-answer {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  font-style: italic;
}

.faq-meta {
  display: flex;
  gap: 8px;
  margin-top: 6px;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}