/* Search, request timeline and follow-up loop share one owner-facing surface. */
.chat-history-overlay{position:fixed;inset:0;z-index:9250;display:grid;place-items:center;padding:16px;background:rgba(0,0,0,.62)}
.chat-history-dialog{width:min(820px,100%);max-height:min(820px,calc(100dvh - 32px));display:flex;flex-direction:column;border:1px solid var(--border);border-radius:14px;background:var(--bg-card);box-shadow:0 22px 76px rgba(0,0,0,.48)}
.chat-history-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:15px 17px;border-bottom:1px solid var(--border)}
.chat-history-header strong{display:block;font-size:16px}.chat-history-header p{margin:4px 0 0;color:var(--text-sub);font-size:12px}.chat-history-header button{border:0;background:transparent;color:var(--text-sub);font-size:23px;cursor:pointer}
.chat-history-tabs{display:flex;gap:7px;padding:10px 17px 0}.chat-history-tabs button{border:1px solid var(--border);border-radius:8px;padding:7px 11px;background:var(--bg-panel);color:var(--text-sub);font:inherit;font-size:12px;cursor:pointer}.chat-history-tabs button.active{border-color:var(--accent-purple);color:var(--accent-purple)}
.chat-history-body{min-height:280px;overflow:auto;padding:13px 17px 18px}.chat-history-searchbar{display:grid;grid-template-columns:minmax(0,1fr) 130px auto;gap:8px}.chat-history-searchbar input,.chat-history-searchbar select,.chat-history-followup-form input,.chat-history-followup-form textarea,.chat-history-result textarea{min-width:0;border:1px solid var(--border);border-radius:8px;padding:8px 10px;background:var(--bg-panel);color:var(--text-main);font:inherit}.chat-history-searchbar button,.chat-history-result button,.chat-history-followup-form button{border:1px solid var(--border);border-radius:8px;padding:7px 10px;background:var(--bg-panel);color:var(--text-main);font:inherit;font-size:12px;cursor:pointer}.chat-history-searchbar button,.chat-history-followup-form button[data-primary]{border-color:var(--accent-purple);background:var(--accent-purple);color:#fff}
.chat-history-status{min-height:20px;margin:8px 0;color:var(--text-sub);font-size:12px}.chat-history-status.error{color:var(--danger)}
.chat-history-results{display:grid;gap:9px}.chat-history-result{padding:11px;border:1px solid var(--border);border-radius:10px;background:var(--bg-panel)}.chat-history-result-head{display:flex;justify-content:space-between;gap:10px;color:var(--text-sub);font-size:11px}.chat-history-result p{margin:7px 0;color:var(--text-main);font-size:13px;line-height:1.55;overflow-wrap:anywhere}.chat-history-result-actions{display:flex;flex-wrap:wrap;gap:6px}.chat-history-result-actions button{padding:5px 8px}
.chat-history-timeline{margin-top:9px;padding:9px;border-left:2px solid var(--accent-purple);background:var(--bg-card);border-radius:0 8px 8px 0}.chat-history-event{position:relative;padding:0 0 10px 15px;color:var(--text-sub);font-size:12px;line-height:1.45}.chat-history-event:last-child{padding-bottom:0}.chat-history-event:before{content:'';position:absolute;left:-5px;top:5px;width:7px;height:7px;border-radius:50%;background:var(--accent-purple)}.chat-history-event strong{color:var(--text-main)}.chat-history-event.failed:before{background:var(--danger)}.chat-history-event.waiting:before{background:var(--accent-gold)}
.chat-history-followup-form{display:grid;gap:7px;margin-top:9px;padding:10px;border:1px dashed var(--accent-purple);border-radius:9px}.chat-history-followup-form textarea{min-height:68px;resize:vertical}.chat-history-followup-form-actions{display:flex;gap:7px;justify-content:flex-end}
.chat-history-action-result{margin-top:9px;padding:9px 10px;border-left:2px solid var(--accent-green,#43c59e);border-radius:0 8px 8px 0;background:var(--bg-card)}.chat-history-action-result strong{font-size:12px}.chat-history-action-result p{margin:4px 0}.chat-history-action-result small{color:var(--text-sub)}
.chat-history-empty{padding:32px 12px;text-align:center;color:var(--text-sub);font-size:13px}
@media(max-width:600px){.chat-history-overlay{padding:6px;align-items:end}.chat-history-dialog{max-height:calc(100dvh - 12px);border-radius:13px 13px 0 0}.chat-history-searchbar{grid-template-columns:1fr auto}.chat-history-searchbar select{grid-column:1/-1;grid-row:2}.chat-history-body{padding:11px}.chat-history-result-head{display:block}.chat-history-result-head span{display:block;margin-top:2px}}