/* Пользовательский чат — соответствие docs/UI_GUIDELINES.md (п. 7.4, токены Ant) */

* {
  box-sizing: border-box;
}

body.chat-app {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5715;
  color: var(--color-text);
  background: var(--color-bg-layout);
}

.chat-topbar {
  height: 56px;
  display: flex;
  align-items: center;
  padding: 0 var(--padding-lg);
  background: var(--color-bg-container);
  box-shadow: var(--shadow-header);
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 5;
}

.chat-topbar-logo {
  display: flex;
  align-items: center;
  line-height: 0;
  flex-shrink: 0;
  text-decoration: none;
}

.chat-topbar-logo:hover {
  opacity: 0.9;
}

.chat-topbar-logo img {
  height: 28px;
  width: auto;
  max-width: 120px;
  object-fit: contain;
  object-position: left center;
}

.chat-topbar-title {
  font-weight: 600;
  font-size: 16px;
  color: var(--color-text);
}

.chat-topbar-spacer {
  flex: 1;
}

.chat-topbar a {
  color: var(--color-primary);
  text-decoration: none;
  font-size: 14px;
}

.chat-topbar a:hover {
  text-decoration: underline;
}

.chat-wrap {
  max-width: 52rem;
  margin: 0 auto;
  padding: var(--padding-lg);
  padding-bottom: 48px;
}

.chat-page-desc {
  color: var(--color-text-secondary);
  font-size: 13px;
  margin-bottom: var(--padding-md);
  line-height: 1.55;
}

.chat-page-desc a {
  color: var(--color-primary);
}

label {
  display: block;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

input,
textarea {
  width: 100%;
  padding: 8px 11px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg-container);
  color: var(--color-text);
  font-size: 14px;
}

textarea {
  min-height: 6rem;
  resize: vertical;
}

.row {
  margin-bottom: 12px;
}

button {
  font-size: 14px;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid var(--color-primary);
  background: var(--color-primary);
  color: #fff;
  padding: 4px 15px;
  height: 36px;
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

button.secondary {
  background: var(--color-bg-container);
  color: var(--color-text);
  border-color: var(--color-border);
}

button.secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.status {
  margin: 12px 0;
  padding: 8px 12px;
  border-radius: 6px;
  background: var(--color-bg-container);
  border: 1px solid var(--color-border);
  font-size: 14px;
}

.status.idle {
  color: var(--color-text-secondary);
}

.status.loading {
  color: var(--color-processing);
  border-color: rgba(22, 119, 255, 0.35);
}

.status.ok {
  border-color: rgba(82, 196, 26, 0.45);
  color: var(--color-text);
}

.status.err {
  border-color: rgba(255, 77, 79, 0.45);
  color: var(--color-error);
}

/* Пузыри: пользователь справа (primary), ассистент слева (нейтральный) — п. 7.4 */
.thread {
  margin: 12px 0;
  padding: 12px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border-secondary);
  background: var(--color-bg-container);
  min-height: 8rem;
  max-height: 28rem;
  overflow-y: auto;
}

.thread-empty {
  color: var(--color-text-secondary);
  font-size: 14px;
  padding: 8px 0;
}

.bubble {
  margin-bottom: 12px;
  padding: 10px 14px;
  border-radius: 12px;
  max-width: 88%;
  white-space: pre-wrap;
  font-size: 14px;
  line-height: 1.5;
}

.bubble.user {
  margin-left: auto;
  background: var(--color-primary);
  color: #fff;
  border: 1px solid var(--color-primary);
}

.bubble.assistant {
  margin-right: auto;
  background: var(--color-bg-layout);
  color: var(--color-text);
  border: 1px solid var(--color-border-secondary);
}

.bubble .who {
  font-size: 12px;
  opacity: 0.85;
  margin-bottom: 4px;
}

.bubble.user .who {
  color: rgba(255, 255, 255, 0.9);
}

.bubble.assistant .who {
  color: var(--color-text-secondary);
}

.chat-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}

.session-hint {
  color: var(--color-text-secondary);
  font-size: 13px;
  margin: 0;
}

.chat-session-picker {
  margin: 0 0 12px;
  padding: 10px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border-secondary);
  background: var(--color-bg-layout);
}

.chat-session-picker summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-text);
}

.chat-session-picker .session-picker-actions {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.chat-session-list {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  max-height: 14rem;
  overflow-y: auto;
}

.chat-session-item {
  padding: 8px 10px;
  margin-bottom: 6px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border-secondary);
  background: var(--color-bg-container);
  cursor: pointer;
  font-size: 13px;
  line-height: 1.35;
}

.chat-session-item:hover {
  border-color: var(--color-primary);
}

.chat-session-item.active {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.chat-session-item .ssi-title {
  font-weight: 600;
  color: var(--color-text);
}

.chat-session-item .ssi-meta {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.thread-dialog-divider {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-secondary);
  margin: 14px 0 10px;
  padding: 6px 0;
  border-top: 1px dashed var(--color-border-secondary);
}

.answer-panel {
  white-space: pre-wrap;
  padding: var(--padding-md);
  border-radius: var(--radius);
  background: var(--color-bg-container);
  border: 1px solid var(--color-border-secondary);
  min-height: 3rem;
}

.sources-block h2,
.answer-heading {
  font-size: 15px;
  font-weight: 600;
  margin: var(--padding-md) 0 8px;
  color: var(--color-text);
}

.src-item {
  padding: 10px 12px;
  margin-bottom: 8px;
  border-radius: 6px;
  background: var(--color-bg-layout);
  border: 1px solid var(--color-border-secondary);
  font-size: 13px;
}

.src-item strong {
  color: var(--color-primary);
}

.badge {
  display: inline-block;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 8px;
  vertical-align: middle;
}

.badge.refused {
  background: rgba(250, 173, 20, 0.15);
  color: var(--color-warning);
  border: 1px solid rgba(250, 173, 20, 0.4);
}

.badge.ok {
  background: rgba(82, 196, 26, 0.12);
  color: var(--color-success);
  border: 1px solid rgba(82, 196, 26, 0.35);
}

.feedback {
  margin-top: 12px;
  padding: 12px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border-secondary);
  background: var(--color-bg-container);
}

.feedback p {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.feedback-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.feedback .done {
  font-size: 14px;
}

.turn-feedback {
  margin-top: 0.75rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-border-secondary);
}

.turn-feedback .tf-label {
  margin: 0 0 0.35rem;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.turn-feedback .feedback-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.turn-feedback .tf-done {
  margin: 0.35rem 0 0;
  font-size: 0.85rem;
}

body.theme-dark .bubble.user {
  color: #fff;
}