/**
 * sidebar.css - 좌측 사이드바: 새 대화, 검색, 대화 목록, 인라인 이름 변경 및 액션
 */

.sidebar-header {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-bottom: 1px solid var(--border-subtle);
}

.new-chat-btn {
  width: 100%;
  height: 36px;
  background-color: var(--accent-subtle);
  color: var(--accent-text);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  transition: all var(--transition-fast);
}

.new-chat-btn:hover {
  background-color: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-sm);
}

.shortcut-badge {
  font-size: 10px;
  font-family: var(--font-mono);
  padding: 2px 5px;
  border-radius: var(--radius-xs);
  background-color: rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: inherit;
  opacity: 0.85;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  height: 32px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0 28px 0 28px;
  font-size: 12px;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.search-input:focus {
  border-color: var(--border-focus);
  background-color: var(--bg-surface-elevated);
}

.search-icon {
  position: absolute;
  left: 8px;
  width: 14px;
  height: 14px;
  color: var(--text-muted);
  pointer-events: none;
}

.search-clear-btn {
  position: absolute;
  right: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  color: var(--text-muted);
  display: none;
  align-items: center;
  justify-content: center;
}

.search-clear-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-hover);
}

.search-clear-btn.visible {
  display: flex;
}

/* 대화 목록 스크롤 영역 */
.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* 대화 항목 */
.chat-item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
  user-select: none;
  gap: 8px;
}

.chat-item:hover {
  background-color: var(--bg-hover);
}

.chat-item.active {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-normal);
}

[data-theme="dark"] .chat-item.active {
  background-color: #1a2233;
  border-color: #2b3952;
}

[data-theme="light"] .chat-item.active {
  background-color: #e2e8f0;
  border-color: #cbd5e1;
}

.chat-item-main {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
  min-width: 0;
}

.chat-item-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-item-time {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* 항목 액션 (이름 변경, 삭제) */
.chat-item-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.chat-item:hover .chat-item-actions,
.chat-item:focus-within .chat-item-actions {
  opacity: 1;
  pointer-events: auto;
}

.chat-action-btn {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.chat-action-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-active);
}

.chat-action-btn.delete:hover {
  color: var(--danger-text);
  background-color: var(--danger-subtle);
}

/* 인라인 이름 변경 */
.chat-rename-form {
  display: flex;
  align-items: center;
  gap: 4px;
  width: 100%;
}

.chat-rename-input {
  flex: 1;
  height: 26px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-focus);
  border-radius: var(--radius-xs);
  padding: 0 6px;
  font-size: 12px;
  color: var(--text-primary);
}

.chat-rename-btn {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
}

.chat-rename-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-hover);
}

.chat-rename-btn.save:hover {
  color: var(--success-text);
}

/* 사이드바 빈 상태 */
.sidebar-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 16px;
  color: var(--text-muted);
  gap: 12px;
  flex: 1;
}

.sidebar-empty-icon {
  width: 36px;
  height: 36px;
  opacity: 0.5;
}

.sidebar-empty-text {
  font-size: 12px;
  line-height: 1.6;
}

/* 사이드바 하단 정보 */
.sidebar-footer {
  padding: 10px 12px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
}