/* Public Q&A history floats over the shared page background. */
.chat-history-sidebar,.chat-history-backdrop { display:none; }
#chatHistoryLogo { border:0;border-radius:0;padding:0;background:transparent;box-shadow:none;font-family:inherit;text-align:left; }
.guest-brand-group { display:flex;align-items:center;gap:12px;min-width:0; }
body.guest-mode #ask.assistant-drawer > .guest-chat-header { grid-column:1/-1;grid-row:1; }
body.guest-mode:not(.guest-events-mode).chat-history-open #ask.assistant-drawer { grid-template-columns:272px minmax(0,1fr); }
body.guest-mode:not(.guest-events-mode).chat-history-open #ask.assistant-drawer > .ask-layout { grid-column:2;grid-row:2;min-width:0; }
body.guest-mode:not(.guest-events-mode).chat-history-open .chat-history-sidebar { display:flex; }
.chat-history-sidebar { grid-column:1;grid-row:2;min-height:0;min-width:0;flex-direction:column;gap:16px;padding:8px 16px 20px 20px;background:transparent;overflow:hidden; }
.chat-history-heading { display:flex;align-items:center;justify-content:space-between;gap:8px;padding-left:8px; }
.chat-history-heading h2 { margin:0;font-size:14px;font-weight:600;color:var(--text-secondary); }
.chat-history-new { display:flex;align-items:center;gap:12px;width:100%;min-height:44px;padding:10px 14px;border:0;border-radius:14px;background:transparent;color:var(--accent-blue);font-size:14px;font-weight:500; }
.chat-history-new svg { width:18px;height:18px;flex:none; }
.chat-history-search { display:flex;align-items:center;gap:8px;margin:0;padding:0 12px;min-height:40px;border-radius:12px;background:transparent; }
.chat-history-search svg { width:16px;height:16px;flex:none;color:var(--text-muted); }
#chatHistorySearch { width:100%;min-width:0;height:40px;padding:0;border:0;border-radius:0;outline:0;background:transparent;box-shadow:none;color:var(--text-primary);font-size:13px; }
.chat-history-search:focus-within { box-shadow:inset 0 0 0 1px var(--border-strong); }
.chat-history-list { flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;scrollbar-width:thin;scroll-padding:12px;padding:0 4px 12px; }
.chat-history-list h3 { margin:20px 8px 8px;font-size:12px;line-height:1.5;font-weight:400;color:var(--text-muted); }
.chat-history-list h3:first-child { margin-top:4px; }
.chat-history-item { display:block;width:100%;min-height:40px;margin:2px 0;padding:10px 10px;border:0;border-radius:10px;background:transparent;text-align:left;color:var(--text-secondary);font-size:13px;line-height:20px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis; }
.chat-history-item:hover { color:var(--accent-blue); }
.chat-history-item[aria-current=true] { color:var(--accent-blue);font-weight:500; }
.chat-history-empty { margin:8px;font-size:13px;line-height:1.8;color:var(--text-muted); }
.chat-history-note { margin:0;padding:0 8px;font-size:11px;line-height:1.7;color:var(--text-muted); }
.chat-history-sidebar button:focus-visible,#chatHistoryLogo:focus-visible { outline:2px solid var(--accent-blue);outline-offset:2px; }
@media(max-width:1100px) {
  body.guest-mode #ask .guest-chat-header>.guest-brand-group { grid-column:1;grid-row:1; }
}
@media(max-width:780px),(max-height:560px) {
  body.guest-mode:not(.guest-events-mode).chat-history-open #ask.assistant-drawer { grid-template-columns:minmax(0,1fr); }
  body.guest-mode:not(.guest-events-mode).chat-history-open #ask.assistant-drawer>.ask-layout { grid-column:1;visibility:hidden; }
  body.guest-mode:not(.guest-events-mode).chat-history-open .chat-history-sidebar { position:absolute;grid-column:1/-1;grid-row:2;inset:0 auto 0 0;height:100%;max-height:100%;width:min(300px,calc(100% - 48px));box-sizing:border-box;z-index:60;padding:8px 16px 12px;background:transparent;box-shadow:none; }
  body.guest-mode:not(.guest-events-mode).chat-history-open .chat-history-backdrop { display:block;position:absolute;grid-column:1/-1;grid-row:2;inset:0;z-index:50;width:100%;height:100%;border:0;border-radius:0;background:transparent; }
}
@media(max-width:780px) {
  .guest-brand-group { gap:6px; }
  body.guest-mode #ask.assistant-drawer .guest-chat-header { column-gap:8px;padding-inline:12px; }
  .guest-brand-group .guest-chat-brand { gap:8px; }
  body.guest-mode .guest-chat-brand strong { font-size:15px; }
  body.guest-mode .guest-chat-brand small { font-size:11px; }
  body.guest-mode .guest-chat-brand .brand-mark { width:28px;height:28px; }
}

@media(max-height:560px) {
  body.guest-mode:not(.guest-events-mode).chat-history-open .chat-history-sidebar { gap:10px;overflow-y:auto; }
  .chat-history-sidebar>:not(.chat-history-list) { flex-shrink:0; }
  .chat-history-heading { display:none; }
  .chat-history-sidebar .chat-history-list { min-height:80px; }
}