.chats-app{z-index:1;isolation:isolate;flex-direction:column;flex:auto;height:100%;min-height:0;max-height:100%;display:flex;position:relative;overflow:hidden}.chats-app__ambient{pointer-events:none;z-index:0;opacity:0;transition:opacity .55s;position:absolute;inset:0}.chats-app[data-chats-backdrop=idle] .chats-app__ambient--glow{opacity:.92}.chats-app[data-chats-backdrop=idle] .chats-app__ambient--mesh{opacity:.22}.chats-app[data-chats-backdrop=active] .chats-app__ambient--glow,.chats-app[data-chats-backdrop=active] .chats-app__ambient--mesh{opacity:0;transition-duration:.35s}.chats-app__ambient--glow{background:radial-gradient(circle 58vmax at calc(50% + var(--sb-pmx,0) * 32vmin) calc(42% + var(--sb-pmy,0) * 28vmin), color-mix(in srgb, var(--sb-accent) 16%, transparent), transparent 52%), radial-gradient(circle 48vmax at calc(72% + var(--sb-pmx,0) * -20vmin) calc(58% + var(--sb-pmy,0) * 18vmin), var(--sb-spectral-muted), transparent 55%)}.chats-app__ambient--mesh{background-image:radial-gradient(circle at calc(50% + var(--sb-pmx,0) * 18%) calc(40% + var(--sb-pmy,0) * 14%), color-mix(in srgb, var(--sb-foreground) 10%, transparent) 0, transparent 42%), linear-gradient(#ffffff09 1px, transparent 1px), linear-gradient(90deg, #ffffff09 1px, transparent 1px);transform:translate(calc(var(--sb-pmx,0) * -12px), calc(var(--sb-pmy,0) * -10px));background-size:auto,64px 64px,64px 64px}@media (prefers-reduced-motion:reduce){.chats-app__ambient--mesh{transform:none}}.chats-app__header,.chats-app__main{z-index:1;position:relative}.chats-app__header{z-index:46;border-bottom:1px solid var(--sb-border-faint);background:color-mix(in srgb, var(--sb-chat-bg) 88%, transparent);-webkit-backdrop-filter:blur(12px)saturate(1.15);backdrop-filter:blur(12px)saturate(1.15);min-height:3.25rem;box-shadow:0 1px 0 color-mix(in srgb, var(--sb-foreground) 4%, transparent);flex-shrink:0;grid-template-columns:minmax(0,1fr) minmax(0,auto) minmax(0,1fr);align-items:center;gap:.75rem;padding:.55rem 1.1rem;display:grid}.chats-app[data-chats-backdrop=active] .chats-app__header{background:color-mix(in srgb, var(--sb-chat-bg) 94%, #000);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:none}.chats-app__header-left{justify-self:start;align-items:center;gap:.35rem;display:flex}.chats-app__header-icon-btn{border:1px solid var(--sb-border-subtle);background:var(--sb-surface-ghost);width:2.25rem;height:2.25rem;color:var(--sb-text-soft);cursor:pointer;border-radius:.65rem;flex-shrink:0;justify-content:center;align-items:center;padding:0;transition:border-color .18s,background-color .18s,color .18s;display:flex}.chats-app__header-icon-btn:hover{border-color:color-mix(in srgb, var(--sb-accent) 32%, transparent);background:color-mix(in srgb, var(--sb-accent) 10%, transparent);color:var(--sb-foreground)}.chats-app__brand{font-family:var(--font-brand-wordmark), var(--font-secondary), system-ui, sans-serif;letter-spacing:.06em;color:var(--sb-foreground);font-size:.9375rem;font-weight:700;text-decoration:none}.chats-app__brand:hover{color:var(--sb-accent-light)}.chats-app__header-title{text-overflow:ellipsis;white-space:nowrap;max-width:min(50vw,20rem);color:color-mix(in srgb, var(--sb-foreground) 75%, transparent);justify-self:center;margin:0;font-size:.8125rem;font-weight:600;overflow:hidden}.chats-app__header-title--empty{color:var(--sb-text-faint);font-weight:400}.chats-app__header-right{justify-self:end;align-items:center;gap:.35rem;display:flex;position:relative}.chats-app__user-btn{border:1px solid var(--sb-border-subtle);background:var(--sb-surface-ghost);color:var(--sb-foreground);cursor:pointer;border-radius:.75rem;align-items:center;gap:.35rem;padding:.35rem .65rem;font-size:.8125rem;font-weight:500;transition:border-color .18s,background-color .18s,color .18s;display:flex}.chats-app__user-btn:hover{border-color:color-mix(in srgb, var(--sb-accent) 32%, transparent);background:color-mix(in srgb, var(--sb-accent) 10%, transparent)}.chats-app__user-chevron{opacity:.6;font-size:.65rem}.chats-app__user-menu{border:1px solid var(--sb-border-subtle);background:var(--sb-rail-bg);border-radius:.75rem;min-width:11rem;padding:.35rem;position:absolute;top:calc(100% + .35rem);right:0;box-shadow:0 8px 28px #00000059}.chats-app__user-menu a{color:var(--sb-text-soft);border-radius:.35rem;padding:.45rem .65rem;font-size:.8125rem;text-decoration:none;display:block}.chats-app__user-menu a:hover{background:var(--sb-surface-ghost);color:var(--sb-foreground)}.chats-app__user-menu-sep{background:var(--sb-border-faint);border:none;height:1px;margin:.35rem 0}.chats-app__main{flex:auto;align-items:stretch;min-width:0;min-height:0;display:flex;overflow:hidden}.chats-app__sidebar{background:color-mix(in srgb, var(--sb-rail-bg) 92%, transparent);flex-direction:column;flex-shrink:0;min-height:0;transition:background-color .22s;display:flex}.chats-app[data-chats-backdrop=active] .chats-app__sidebar{background:var(--sb-rail-bg)}.chats-app__new-chat{background:var(--sb-accent);color:var(--sb-on-accent);cursor:pointer;font-size:.8125rem;font-weight:900;font-family:var(--font-primary);letter-spacing:.01em;box-shadow:0 1px 0 color-mix(in srgb, var(--sb-foreground) 8%, transparent);border:none;border-radius:.8rem;margin:.7rem .75rem .75rem;padding:.58rem .8rem;line-height:1.25;transition:background-color .2s,filter .2s,box-shadow .2s,transform .2s}.chats-app__new-chat:hover{background:var(--sb-accent-light);box-shadow:0 2px 12px color-mix(in srgb, var(--sb-foreground) 10%, transparent)}.chats-app__new-chat:active{background:var(--sb-accent-dark)}@media (prefers-reduced-motion:no-preference){.chats-app__new-chat:hover{transform:translateY(-1px)}.chats-app__new-chat:active{transform:translateY(0)}}.chats-app__chat-list{overscroll-behavior:contain;flex:auto;min-height:0;padding:.15rem .55rem 1.1rem;scroll-padding-block:.35rem;overflow-y:auto}.chats-app__chat-item{text-align:left;cursor:pointer;background:0 0;border:none;border-radius:.8rem;width:100%;padding:.62rem .68rem;transition:background-color .2s,box-shadow .2s,color .2s,transform .2s}.chats-app__chat-item:hover{background:color-mix(in srgb, var(--sb-foreground) 5.5%, transparent)}.chats-app__chat-item--active{background:color-mix(in srgb, var(--sb-accent) 14%, transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb, var(--sb-accent-dark) 35%, transparent)}.chats-app__chat-item-title{letter-spacing:-.01em;color:var(--sb-foreground);text-overflow:ellipsis;white-space:nowrap;font-size:.8125rem;font-weight:600;line-height:1.35;display:block;overflow:hidden}.chats-app__chat-item-time{color:var(--sb-text-faint);margin-top:.22rem;font-size:.6875rem;font-weight:400;line-height:1.35}.chats-app__center{background:var(--sb-chat-bg);flex-direction:column;flex:auto;min-width:0;min-height:0;transition:background-color .45s;display:flex;overflow:hidden}.chats-app[data-chats-backdrop=idle] .chats-app__center{background:color-mix(in srgb, var(--sb-chat-bg) 68%, transparent)}.chats-app__center-body{flex-direction:column;flex:auto;min-height:0;display:flex;overflow:hidden}.chats-app__center-constrain{flex-direction:column;flex:auto;width:100%;min-height:0;padding-left:clamp(.5rem,2.5vw,1.25rem);padding-right:clamp(.5rem,2.5vw,1.25rem);display:flex;overflow:hidden}.chats-app__center-body--empty .chats-app__center-constrain{justify-content:center}.chats-app__center-head{border-bottom:1px solid var(--sb-border-faint);background:color-mix(in srgb, var(--sb-chat-bg) 55%, transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);flex-shrink:0;justify-content:space-between;align-items:center;gap:.75rem;padding:.7rem clamp(.85rem,2.5vw,1.35rem);transition:background-color .45s,border-color .45s;display:flex}.chats-app[data-chats-backdrop=active] .chats-app__center-head{background:var(--sb-chat-bg);-webkit-backdrop-filter:none;backdrop-filter:none}.chats-app__center-title{letter-spacing:-.02em;color:var(--sb-foreground);text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:.9375rem;font-weight:600;overflow:hidden}.chats-app__status{letter-spacing:.04em;text-transform:uppercase;border-radius:9999px;flex-shrink:0;padding:.2rem .55rem;font-size:.6875rem;font-weight:600}.chats-app__status--active{color:var(--sb-on-accent);background:var(--sb-accent);font-weight:600}.chats-app__status--processing{color:var(--sb-text-soft);background:color-mix(in srgb, var(--sb-foreground) 7%, transparent);font-weight:600;animation:1.2s ease-in-out infinite chats-app-pulse}@keyframes chats-app-pulse{0%,to{opacity:1}50%{opacity:.55}}.chats-app__messages-scroll{overscroll-behavior:contain;flex:auto;min-height:0;padding-bottom:clamp(6.5rem,18dvh,11rem);overflow:hidden auto}.chats-app__messages{flex-direction:column;gap:.85rem;width:100%;padding-top:clamp(.65rem,2vw,1rem);padding-bottom:clamp(.65rem,2vw,1rem);display:flex}.chats-app__msg-turn{flex-direction:column;gap:.35rem;display:flex}.chats-app__msg-turn-user{box-sizing:border-box;width:100%;max-width:750px;margin-left:auto;margin-right:auto}.chats-app__composer-wrap{z-index:10;background:var(--sb-chat-bg);width:100%;box-shadow:0 -12px 24px color-mix(in srgb, var(--sb-chat-bg) 88%, transparent);flex-shrink:0;margin-top:auto;transition:background-color .45s,box-shadow .45s;position:sticky;bottom:0}.chats-app[data-chats-backdrop=idle] .chats-app__composer-wrap{background:linear-gradient(180deg, transparent 0%, color-mix(in srgb, var(--sb-chat-bg) 45%, transparent) 28%, color-mix(in srgb, var(--sb-chat-bg) 82%, transparent) 100%);box-shadow:0 -18px 36px color-mix(in srgb, var(--sb-chat-bg) 55%, transparent)}.chats-app__usage-banner{box-sizing:border-box;max-width:800px;color:var(--sb-foreground);background:color-mix(in srgb, var(--sb-accent) 10%, transparent);border:1px solid color-mix(in srgb, var(--sb-accent) 22%, transparent);border-radius:.5rem;margin:0 auto .5rem;padding:.5rem .75rem;font-size:.8125rem;line-height:1.45}.chats-app__composer-inner{width:100%;max-width:800px;margin-left:auto;margin-right:auto}.chats-app__empty{text-align:center;flex-direction:column;justify-content:center;align-items:center;width:100%;max-width:750px;min-height:12rem;margin-left:auto;margin-right:auto;padding:clamp(1.25rem,4vw,2rem) 0;display:flex}.chats-app__empty-title{letter-spacing:-.02em;color:var(--sb-foreground);margin:0;font-size:1rem;font-weight:700}.chats-app__empty-hint{max-width:18rem;color:var(--sb-text-muted);margin:.5rem 0 0;font-size:.8125rem;font-weight:400;line-height:1.5}.chats-app__empty-cta{background:var(--sb-accent);color:var(--sb-on-accent);cursor:pointer;border:none;border-radius:.75rem;margin-top:1.25rem;padding:.55rem 1.25rem;font-size:.875rem;font-weight:600;transition:background-color .18s}.chats-app__empty-cta:hover{background:var(--sb-accent-light)}.chats-app__empty-cta:active{background:var(--sb-accent-dark)}.chats-app__overview{flex-direction:column;justify-content:center;align-items:stretch;gap:1.5rem;width:100%;max-width:40rem;margin-left:auto;margin-right:auto;padding:clamp(1rem,4vh,2.5rem) 0;display:flex}.chats-app__overview-hero{text-align:center}.chats-app__overview-headline{letter-spacing:-.03em;color:var(--sb-foreground);margin:0;font-size:clamp(1.35rem,3.5vw,1.85rem);font-weight:650;line-height:1.2}.chats-app__overview-tagline{color:var(--sb-text-muted);margin:.55rem 0 0;font-size:.9375rem;font-weight:400;line-height:1.5}.chats-app__overview-composer-shell{width:100%}.chats-app__overview-banner{margin-bottom:.65rem}.chats-app__pill-composer{border:1px solid var(--sb-border-subtle);background:color-mix(in srgb, var(--sb-foreground) 4%, var(--sb-chat-bg));width:100%;box-shadow:0 1px 0 color-mix(in srgb, var(--sb-foreground) 5%, transparent), 0 12px 40px #00000029;border-radius:35px;align-items:flex-end;gap:.5rem;padding:.55rem .65rem .55rem .85rem;transition:border-color .2s,box-shadow .2s;display:flex}.chats-app__pill-composer:focus-within{border-color:color-mix(in srgb, var(--sb-accent) 45%, var(--sb-border-subtle));box-shadow:0 0 0 1px color-mix(in srgb, var(--sb-accent) 25%, transparent), 0 12px 40px #0000002e}.chats-app__pill-composer__attach{width:2.5rem;height:2.5rem;color:var(--sb-text-soft);cursor:pointer;background:0 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.18s,transform .12s;display:flex}.chats-app__pill-composer__send:hover:not(:disabled){background:var(--sb-accent-light)}.chats-app__pill-composer__send:active:not(:disabled){transform:scale(.96)}.chats-app__pill-composer__send:disabled{opacity:.38;cursor:not-allowed}.chats-app__pill-composer__send--stop{background:color-mix(in srgb, var(--sb-foreground) 14%, var(--sb-chat-bg));color:var(--sb-foreground)}.chats-app__pill-composer__send--stop:hover:not(:disabled){background:color-mix(in srgb, var(--sb-foreground) 20%, var(--sb-chat-bg))}.chats-app__pill-composer--thread{box-shadow:0 1px 0 color-mix(in srgb, var(--sb-foreground) 4%, transparent), 0 6px 20px #0000001f;border-radius:1.35rem;gap:.35rem;padding:.38rem .5rem .38rem .6rem}.chats-app__pill-composer--thread:focus-within{box-shadow:0 0 0 1px color-mix(in srgb, var(--sb-accent) 22%, transparent), 0 8px 22px #00000024}.chats-app__pill-composer--thread .chats-app__pill-composer__attach{width:2.1rem;height:2.1rem;margin-bottom:0}.chats-app__pill-composer--thread .chats-app__pill-composer__textarea{min-height:2.2rem;padding:.4rem .25rem .4rem 0;font-size:.875rem;line-height:1.42}.chats-app__pill-composer--thread .chats-app__pill-composer__send,.chats-app__pill-composer--thread .chats-app__pill-composer__send--stop{width:2.2rem;height:2.2rem}.chats-app__pill-composer--thread .chats-app__pill-composer__attach svg,.chats-app__pill-composer--thread .chats-app__pill-composer__send svg{width:17px;height:17px}.chats-app__overview-chips{flex-wrap:wrap;justify-content:center;gap:.45rem;display:flex}.chats-app__overview-chip{border:1px solid var(--sb-border-faint);background:color-mix(in srgb, var(--sb-foreground) 5%, var(--sb-chat-bg));color:color-mix(in srgb, var(--sb-foreground) 88%, transparent);cursor:pointer;border-radius:9999px;padding:.4rem .85rem;font-size:.8125rem;font-weight:500;transition:border-color .18s,background-color .18s,color .18s}.chats-app__overview-chip:hover:not(:disabled){border-color:color-mix(in srgb, var(--sb-accent) 35%, var(--sb-border-subtle));background:color-mix(in srgb, var(--sb-accent) 10%, var(--sb-chat-bg));color:var(--sb-foreground)}.chats-app__overview-chip:disabled{opacity:.45;cursor:not-allowed}.chats-app__overview-footnote{text-align:center;color:var(--sb-text-faint);margin:0;font-size:.75rem;line-height:1.5}.chats-app__overview-inline-btn{font:inherit;font-size:inherit;color:var(--sb-accent);text-underline-offset:.15em;cursor:pointer;background:0 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var(--sb-border-subtle));box-shadow:0 1px 0 color-mix(in srgb, var(--sb-foreground) 7%, transparent), 0 12px 34px color-mix(in srgb, var(--sb-foreground) 7%, transparent)}.chats-app__msg--assistant{background:0 0;border:none;padding:.35rem 0}.chats-app__msg.chats-app__msg--assistant.chats-app__msg--assistant-rail-drive{width:100%;max-width:none}.chats-app__msg-body{color:var(--sb-foreground);white-space:pre-wrap;word-break:break-word;margin:0;font-size:.875rem;font-weight:400;line-height:1.55}.chats-app__msg--user .chats-app__msg-body{letter-spacing:.01em;line-height:1.62}.chats-app__msg-placeholder{color:var(--sb-text-faint);font-size:.875rem;font-weight:400}.chats-app__typing{vertical-align:middle;align-items:center;gap:.3rem;min-height:1.35rem;padding:.4rem 0;display:inline-flex}.chats-app__typing-dot{background:var(--sb-text-soft);opacity:.4;border-radius:50%;width:.32rem;height:.32rem;animation:1.15s ease-in-out infinite 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(max-width:749px){.chats-app__assistant-rail{height:auto!important;min-height:0!important}}.chats-app__assistant-rail-overlay{z-index:55;padding:clamp(.65rem, 3dvh, 1.25rem) max(.5rem, env(safe-area-inset-left,0px)) clamp(.65rem, 3dvh, 1.25rem) max(.5rem, env(safe-area-inset-right,0px));pointer-events:none;justify-content:center;align-items:flex-start;display:flex;position:fixed;inset:0}.chats-app__assistant-rail-overlay__backdrop{z-index:0;cursor:pointer;pointer-events:auto;background:#00000094;border:none;margin:0;padding:0;position:absolute;inset:0}.chats-app__assistant-rail-overlay__panel{z-index:1;box-sizing:border-box;border:1px solid var(--sb-border-faint);background:var(--sb-chat-bg);width:90vw;max-width:90vw;max-height:min(88dvh,100vh - 2rem);box-shadow:0 24px 60px #00000073, 0 1px 0 color-mix(in srgb, var(--sb-foreground) 6%, 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