html,body,#root{height:100%;margin:0;padding:0;font-family:Inter,Helvetica Neue,Arial,sans-serif}body{position:relative;overflow-x:hidden}.appRoot{--maxw: 820px;--composerH: 120px;--bg: #ffffff;--muted: #f7f7f8;--line: #e5e7eb;--bot: #f2f5f7;--bot-line: #dbe4ea;--user: #e6f0ff;--user-line: #c9ddff;background:var(--bg);min-height:100dvh;display:flex;flex-direction:column;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial}.header{background:transparent!important;border-bottom:1px solid var(--line);-webkit-backdrop-filter:saturate(150%) blur(6px);backdrop-filter:saturate(150%) blur(6px)}.toolbarFix{position:relative;width:100%;max-width:calc(var(--maxw) + 48px);margin:0 auto;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:12px}.headerLeft,.headerRight{display:inline-flex;align-items:center;gap:10px}.headerTitleCenter{position:absolute;left:50%;transform:translate(-50%);margin:0;font-weight:600;text-align:center;white-space:nowrap}.modelSelect{width:250px}.modelSelect .MuiInputBase-root{height:40px;border-radius:8px}.modelSelect .MuiSelect-select{display:flex;align-items:center;padding-right:32px!important;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media (max-width: 640px){.modelSelect{width:220px}}.infoBtn{border:1.5px solid #14313f;width:36px;height:36px;border-radius:999px}.menuItemTitle{font-size:.9rem;font-weight:600;color:#1e1e1e}.menuItemSubtitle{font-size:.78rem;color:#6e6e6e;margin-top:2px}.centerColumn{max-width:var(--maxw);margin:0 auto;width:100%;padding:20px 16px calc(var(--composerH) + 12px);box-sizing:border-box}.chatScroll{display:flex;flex-direction:column;gap:12px}.bubble{max-width:85%;padding:14px 16px;border-radius:16px;line-height:1.6;font-size:16px;box-shadow:0 1px 3px #0000000a;position:relative}.bubble.assistant{align-self:flex-start;background:var(--bot);border:1px solid var(--bot-line);color:#0f1f2a}.bubble.assistant:after{content:"";position:absolute;left:-6px;top:14px;width:12px;height:12px;background:var(--bot);border-left:1px solid var(--bot-line);border-bottom:1px solid var(--bot-line);transform:rotate(45deg)}.bubble.user{align-self:flex-end;background:var(--user);border:1px solid var(--user-line)}.bubble.user:after{content:"";position:absolute;right:-6px;top:14px;width:12px;height:12px;background:var(--user);border-right:1px solid var(--user-line);border-bottom:1px solid var(--user-line);transform:rotate(45deg)}.typing{display:inline-flex;gap:6px;align-items:center}.typing span{width:6px;height:6px;background:#718096;border-radius:999px;display:inline-block;animation:blink 1s infinite ease-in-out}.typing span:nth-child(2){animation-delay:.15s}.typing span:nth-child(3){animation-delay:.3s}@keyframes blink{0%,80%,to{opacity:.2;transform:translateY(0)}40%{opacity:1;transform:translateY(-2px)}}.composerInner{position:relative;max-width:var(--maxw, 820px);margin:0 auto;background:#fff;border:1px solid var(--line, #e5e7eb);border-radius:16px;box-shadow:0 8px 24px #0000000f;padding:10px 12px}.composerInput .MuiOutlinedInput-root{border:none}.composerInput fieldset{display:none}.composerInput .MuiInputBase-root{padding-right:64px!important;align-items:flex-end;z-index:1}.composerInput textarea{padding-right:52px!important;resize:none;line-height:1.5;max-height:240px;overflow:auto}.sendFab{position:absolute;right:10px;bottom:10px;width:42px;height:42px;border:none;border-radius:10px;background:#f4f5f7;color:#3b3f44;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;z-index:2;box-shadow:0 1px 2px #0000000f}.sendFab:hover{background:#eef0f2}.sendFab:disabled{opacity:.6;cursor:not-allowed}.composer{position:fixed;bottom:0;left:0;right:0;background:linear-gradient(to top,#fff,rgba(255,255,255,.7) 60%,transparent);padding:16px 12px 20px;z-index:10}.composerHint{max-width:var(--maxw, 820px);margin:8px auto 0;text-align:center;color:#8a8a8a;font-size:12px}@media (max-width: 640px){.modelSelect{min-width:150px}.headerTitleCenter{font-size:1rem}.bubble{max-width:92%}.composerInner{padding:8px 48px 8px 10px}}