.data-chat-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; }
.data-chat-heading h2 { margin: 0 0 6px; font-size: 21px; letter-spacing: -0.4px; }
.data-chat-heading p { color: var(--muted); margin: 0; font-size: 13px; max-width: 70ch; }
.data-chat-heading > button { flex-shrink: 0; }
.data-chat-filter { margin-top: 18px; border-bottom: 1px solid var(--line); padding-bottom: 4px; }
.data-chat-filter > summary { color: var(--muted); cursor: pointer; min-height: 44px; padding: 12px 0; font-size: 12px; overflow-wrap: anywhere; }
.data-chat-context { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: 12px; margin: 8px 0 12px; }
.data-chat-context label { min-width: 0; }
.data-chat-context select { width: 100%; min-width: 0; min-height: 44px; }
.data-chat [role="status"]:empty { display: none; }
.data-chat-log { margin: 12px 0; max-height: 560px; overflow-y: auto; overscroll-behavior: contain; padding: 2px; scrollbar-gutter: stable; }
.data-chat-welcome { padding: 28px 16px 12px; text-align: center; }
.data-chat-welcome h3 { font-size: 18px; margin: 0 0 8px; font-weight: 600; }
.data-chat-welcome p { font-size: 13px; color: var(--muted); margin: 0 auto; max-width: 46ch; line-height: 1.6; }
.data-chat-log:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.data-chat-turn { margin: 12px 0 24px; min-width: 0; overflow-wrap: anywhere; }
.data-chat-question { background: var(--panel2); padding: 12px 16px; border-radius: 16px 16px 4px 16px; margin-left: auto; max-width: 88%; width: fit-content; border: 1px solid var(--line); }
.data-chat-question > span { font-size: 11px; color: var(--muted); }
.data-chat-question p { margin: 0; white-space: pre-wrap; line-height: 1.5; }
.data-chat-question > span + p { margin-top: 5px; }
.data-chat-answer { padding: 20px 4px 0; line-height: 1.65; }
.data-chat-answer h3 { margin: 0 0 9px; font-size: 16px; font-weight: 600; }
.data-chat-answer p { margin: 8px 0; white-space: pre-wrap; }
.data-chat-working { color: var(--muted); font-size: 13px; }
.data-chat-answer summary { padding: 12px 0; cursor: pointer; min-height: 44px; }
.data-chat-answer details { margin-top: 10px; }
.data-chat-facts { margin: 12px 0; display: grid; gap: 10px; }
.data-chat-facts > div { border-top: 1px solid var(--line); padding-top: 10px; }
.data-chat-facts dt { color: var(--muted); font-size: 12px; }
.data-chat-facts dd { margin: 4px 0 0; white-space: pre-wrap; }
.data-chat-sources { font-size: 12px; color: var(--muted); }
.data-chat-sources ul { padding: 0; list-style: none; display: grid; gap: 10px; }
.data-chat-sources a { color: var(--accent); }
.data-chat-source-kind { display: inline-block; margin-right: 8px; font-size: 10px; padding: 1px 6px; border: 1px solid var(--line); border-radius: 4px; }
.data-chat form { display: grid; gap: 8px; margin-top: 18px; padding: 12px; background: var(--bg); border: 1px solid var(--control-line); border-radius: 14px; }
.data-chat form:focus-within { border-color: var(--accent); }
.data-chat textarea { width: 100%; min-width: 0; resize: vertical; min-height: 60px; max-height: 220px; padding: 4px; background: transparent; color: var(--text); border: 0; border-radius: 4px; font: inherit; line-height: 1.5; }
.data-chat-compose-actions { display: flex; gap: 8px; align-items: center; }
.data-chat-compose-actions p { flex: 1; font-size: 11px; margin: 0; }
.data-chat-compose-actions button { min-width: 64px; }
.data-chat button { min-height: 44px; white-space: normal; }
.data-chat :is(button, select, textarea, summary, a):focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.data-chat-suggestions, .data-chat-choices { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.data-chat-welcome[hidden] { display: none; }
.data-chat-choices button { text-align: left; }
.data-chat-about { color: var(--muted); font-size: 11px; margin-top: 10px; max-width: 75ch; }
.data-chat-about > summary { cursor: pointer; min-height: 44px; padding: 12px 0; }
.data-chat-about p { line-height: 1.6; margin: 8px 0; }
@media (max-width: 600px) {
  .data-chat-context { grid-template-columns: minmax(0, 1fr); }
  .data-chat-log { max-height: 480px; }
  .data-chat-compose-actions { flex-wrap: wrap; justify-content: flex-end; }
  .data-chat-compose-actions p { flex-basis: 100%; }
  .data-chat-question { padding: 10px 12px; max-width: 94%; }
  .data-chat-answer { padding: 16px 2px 0; }
  .data-chat-heading h2 { font-size: 19px; }
  .data-chat-welcome { padding: 20px 0 8px; }
}