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6px);font-size:10.5px;color:var(--chat-subtle);font-variant-numeric:tabular-nums;opacity:0;transition:opacity .18s ease}.chat-timeline-rail.is-open .chat-timeline-position,.chat-timeline-rail:focus-within .chat-timeline-position,.chat-timeline-rail:hover .chat-timeline-position{opacity:1}.chat-timeline-popover{position:fixed;z-index:60;display:flex;flex-direction:column;min-height:0;border:1px solid var(--chat-border);border-radius:var(--chat-radius-lg,12px);background:var(--chat-surface);color:var(--chat-text);box-shadow:0 8px 28px rgba(39,37,30,.12),0 1px 2px rgba(39,37,30,.06);animation:chat-timeline-enter .15s ease-out both}html.dark .chat-timeline-popover{box-shadow:0 10px 32px rgba(0,0,0,.45),0 1px 2px rgba(0,0,0,.4)}@keyframes chat-timeline-enter{0%{opacity:0;transform:translateX(-4px)}to{opacity:1;transform:none}}.chat-timeline-list{display:flex;flex-direction:column;min-height:0;overflow-y:auto;padding:6px;font-family:inherit}.chat-timeline-head{display:flex;align-items:center;justify-content:space-between;padding:8px 10px 6px}.chat-timeline-title{font-size:12px;font-weight:600;color:var(--chat-text)}.chat-timeline-count{font-size:11.5px;color:var(--chat-subtle);font-variant-numeric:tabular-nums}.chat-timeline-day{padding:10px 10px 4px;font-size:11px;letter-spacing:.02em;text-transform:uppercase;color:var(--chat-subtle)}.chat-timeline-item{display:flex;align-items:flex-start;gap:10px;width:100%;padding:7px 10px;border:0;border-radius:8px;background:transparent;color:var(--chat-text);font:inherit;font-size:13px;line-height:1.4;text-align:left;cursor:pointer;transition:background-color .15s ease}.chat-timeline-item-text{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-timeline-item-time{flex:none;padding-top:2px;font-size:11px;color:var(--chat-subtle);font-variant-numeric:tabular-nums}.chat-timeline-item.is-active,.chat-timeline-item:hover{background:var(--chat-surface-hover)}.chat-timeline-item.is-active .chat-timeline-item-text{font-weight:500}.chat-timeline-item:focus-visible{outline:2px solid var(--chat-focus);outline-offset:-2px}.chat-timeline-more{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:6px;padding:9px;border:0;border-top:1px solid var(--chat-border);background:transparent;color:var(--chat-accent);font:inherit;font-size:12px;cursor:pointer}.chat-timeline-more:disabled{color:var(--chat-subtle);cursor:default}.chat-timeline-more svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.75}.chat-timeline-more:focus-visible{outline:2px solid var(--chat-focus);outline-offset:-2px}.chat-timeline-jump-target>*{animation:chat-timeline-flash 1.2s ease-out both;border-radius:16px}@keyframes chat-timeline-flash{0%,40%{box-shadow:0 0 0 2px var(--chat-accent-soft),0 0 0 3px var(--chat-accent)}to{box-shadow:0 0 0 0 transparent}}.chat-timeline-sheet-root{position:fixed;inset:0;z-index:60}.chat-timeline-sheet-overlay{position:absolute;inset:0;background:var(--chat-overlay,rgba(0,0,0,.45))}.chat-timeline-sheet{position:absolute;inset:auto 0 0 0;display:flex;flex-direction:column;height:62%;padding:8px 8px calc(14px + env(safe-area-inset-bottom, 0px));border-top:1px solid var(--chat-border);border-radius:16px 16px 0 0;background:var(--chat-surface);color:var(--chat-text);box-shadow:0 -12px 32px rgba(0,0,0,.25);animation:chat-timeline-sheet .22s cubic-bezier(.22,1,.36,1) both}.chat-timeline-sheet-grab{display:block;width:36px;height:4px;margin:4px auto 8px;border-radius:2px;background:var(--chat-border-strong)}.chat-timeline-sheet .chat-timeline-item{padding:10px 12px;font-size:14px}.chat-timeline-sheet .chat-timeline-day{padding:12px 12px 4px}@keyframes chat-timeline-sheet{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:reduce){.chat-timeline-jump-target>*,.chat-timeline-popover,.chat-timeline-sheet{animation:none}.chat-timeline-bar:after,.chat-timeline-item,.chat-timeline-position,.chat-timeline-track{transition:none}}