/* Analysis Panel */
.analysis-panel {
  width: 400px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--mid-gray);
  border-radius: var(--border-radius);
  background-color: white;
  box-shadow: var(--shadow);
  overflow: visible;
  height: auto;
}

/* Panel Header */
.panel-header {
  background-color: var(--light-gray);
  padding: 20px;
  border-bottom: 1px solid var(--mid-gray);
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.panel-header h2 {
  font-size: 1.4rem;
  margin-bottom: 20px;
  color: var(--text-color);
  font-weight: 600;
}

/* AI Score Container */
.ai-score-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0;
}

.ai-score-circle {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: conic-gradient(var(--primary-color) 0% var(--score), #e0e0e0 var(--score) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 15px;
  position: relative;
  --score: 0%;
  box-shadow: var(--shadow-sm);
}

.ai-score-circle::before {
  content: '';
  position: absolute;
  width:150px;
  height: 150px;
  border-radius: 50%;
  background-color: white;
}

.ai-score-circle span {
  position: relative;
  font-size: 2rem;
  font-weight: bold;
  color: var(--primary-color);
}

.score-label {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-color);
  margin-bottom: 4px;
}

.confidence {
  font-size: 0.9rem;
  color: var(--light-text);
}

/* Key Indicators */
.key-indicators {
  padding: 20px;
  border-bottom: 1px solid var(--mid-gray);
}

.key-indicators h3 {
  font-size: 1.1rem;
  margin-bottom: 15px;
  color: var(--text-color);
  font-weight: 600;
}

.key-indicators ul {
  list-style: none;
}

.key-indicators li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 10px;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--light-text);
}

.key-indicators li::before {
  content: '•';
  color: var(--primary-color);
  font-weight: bold;
  margin-right: 10px;
  font-size: 1.2em;
}

/* Analysis Categories */
.analysis-categories {
  flex: 1;
  overflow-y: auto;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.category {
  border-bottom: 1px solid var(--mid-gray);
  overflow: hidden;
}

.category:last-child {
  border-bottom: none;
}

.category h3 {
  font-size: 1.05rem;
  margin: 0;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  cursor: pointer;
  background-color: var(--light-gray);
  transition: var(--transition);
  font-weight: 600;
  color: var(--text-color);
}

.category h3 i {
  margin-right: 10px;
  color: var(--primary-color);
  font-size: 1.1em;
}

.category h3::after {
  content: '▼';
  font-size: 0.7rem;
  margin-left: auto;
  transition: transform 0.3s ease;
  color: var(--dark-gray);
}

.category.collapsed h3::after {
  transform: rotate(-90deg);
}

.category-content {
  padding: 16px 20px;
  transition: all 0.3s ease;
  background-color: white;
}

.category.collapsed .category-content {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
}

/* Category Items */
.category-item {
  margin-bottom: 20px;
  font-size: 0.95rem;
  background-color: #f8f8f8;
  border-radius: var(--border-radius);
  padding: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--mid-gray);
}

.category-item:last-child {
  margin-bottom: 0;
}

.category-item .item-title {
  font-weight: 600;
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  font-size: 1.05rem;
  color: var(--primary-color);
}

.category-item .item-value {
  display: inline-block;
  font-weight: normal;
  color: var(--text-color);
}

.category-item .item-description {
  font-size: 0.9rem;
  color: var(--light-text);
  margin: 8px 0 12px 0;
  line-height: 1.5;
}

.category-item .item-details {
  font-size: 0.85rem;
  color: var(--light-text);
  background-color: var(--light-gray);
  padding: 10px 12px;
  border-radius: var(--border-radius);
  margin-top: 10px;
  line-height: 1.5;
}

/* Topic shift visualization */
.topic-shift {
  margin: 12px 0;
  padding: 12px;
  background-color: var(--light-gray);
  border-radius: var(--border-radius);
}

.topic-shift-paragraph {
  padding: 10px;
  background-color: white;
  border: 1px solid var(--mid-gray);
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--light-text);
}

.topic-shift-arrow {
  text-align: center;
  padding: 8px 0;
  color: var(--secondary-color);
  font-weight: 500;
  font-size: 0.85rem;
}

/* Item sublist */
.item-sublist {
  list-style: none;
  padding-left: 0;
  margin: 10px 0;
}

.item-sublist li {
  position: relative;
  padding: 5px 0 5px 22px;
  font-size: 0.85rem;
  color: var(--light-text);
  margin-bottom: 6px;
}

.item-sublist li::before {
  content: '✓';
  color: var(--success-color);
  position: absolute;
  left: 0;
  font-size: 1em;
  font-weight: bold;
}

/* Summary styling for details/summary */
details summary {
  cursor: pointer;
  padding: 10px 12px;
  background-color: var(--light-gray);
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  color: var(--primary-color);
  display: inline-block;
  margin: 10px 0;
  font-weight: 500;
  transition: all 0.2s ease;
}

details summary:hover {
  background-color: rgba(99, 102, 241, 0.1);
}

details[open] summary {
  margin-bottom: 15px;
}

/* Hide empty categories */
.category.empty {
  display: none;
}

/* Category importance styles */
.category.high-importance {
  order: 1;
}

.category.medium-importance {
  order: 2;
}

.category.low-importance {
  order: 3;
}

.category.no-data {
  order: 4;
  display: none;
}

/* Detection Items */
.detection-item {
  display: flex;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--mid-gray);
}

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

.detection-item .item-name {
  flex: 1;
  color: var(--light-text);
}

.detection-item .item-count {
  font-weight: 500;
  padding: 2px 8px;
  background-color: var(--light-gray);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--primary-color);
}

/* Charts */
.chart-container {
  margin: 20px 0;
  padding: 15px 0;
  border-top: 1px solid var(--mid-gray);
}

/* TTR Donut Chart (Vanilla CSS replacement for Chart.js) */
#ttr-chart-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 15px 0;
}

#ttr-chart-container h4 {
  text-align: center;
  margin-bottom: 15px;
  font-size: 1.05rem;
  color: var(--text-color);
  font-weight: 600;
}

.ttr-donut-chart {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: conic-gradient(rgba(99, 102, 241, 0.7) var(--unique-percent), rgba(221, 221, 221, 0.7) var(--unique-percent));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  --unique-percent: 0%;
  box-shadow: var(--shadow-sm);
}

.ttr-inner-circle {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background-color: white;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ttr-data {
  text-align: center;
}

#unique-words-count {
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--primary-color);
}

.ttr-label {
  font-size: 0.9rem;
  color: var(--light-text);
  margin-top: 5px;
}

/* Simple explanations for lexical analysis */
.explanation-box {
  background-color: #f8f9ff;
  border: 1px solid #d4e0ff;
  border-radius: var(--border-radius);
  padding: 15px;
  margin-bottom: 18px;
}

.explanation-box .item-title {
  color: #2e5cb8;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  margin-bottom: 12px;
}

.explanation-box .item-title i {
  color: var(--primary-color);
}

.simple-list {
  list-style: none;
  padding-left: 0;
  margin-top: 10px;
  margin-bottom: 8px;
}

.simple-list li {
  margin-bottom: 8px;
  padding-left: 22px;
  position: relative;
  font-size: 0.85rem;
  color: var(--light-text);
  line-height: 1.5;
}

.simple-list li::before {
  content: "✓";
  color: var(--primary-color);
  position: absolute;
  left: 0;
  font-weight: bold;
}

.simple-explanation {
  background-color: #fffdf0;
  border-left: 3px solid #f59e0b;
  padding: 10px 12px;
  margin: 10px 0;
  font-size: 0.9rem;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  color: #92400e;
  line-height: 1.5;
}

/* Placeholder items */
.placeholder-item {
  color: var(--light-text);
  font-style: italic;
  padding: 10px 0;
  text-align: center;
  font-size: 0.95rem;
}