:root{color-scheme:dark;--bg:#0b0e15;--sidebar:#10131b;--surface:#141923;--hover:#1b2231;--panel:#111620;--input:#141a25;--text:#e7ebf4;--muted:#8a93a7;--subtle:#7d89a0;--border:#222937;--accent:#82a8ff;--blue:#3b6fe0;--blue-bg:#1a2b4c;--danger:#f3949b;--shadow:0 24px 80px #0008;--sidebar-width:266px;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-synthesis:none}
:root[data-theme=light]{color-scheme:light;--bg:#f9faff;--sidebar:#f0f3fa;--surface:#fff;--hover:#e8edf7;--panel:#fff;--input:#fff;--text:#17223a;--muted:#5e6a83;--subtle:#5b6982;--border:#dfe5ef;--accent:#315fbe;--blue:#3b6fe0;--blue-bg:#e8efff;--danger:#b43d49;--shadow:0 24px 80px #213a6122}
*{box-sizing:border-box}html,body{margin:0;height:100%;height:100dvh}body{display:flex;background:var(--bg);color:var(--text);font-size:14px;line-height:1.6;overflow:hidden}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{color:inherit;cursor:pointer;border:0}button:disabled{cursor:default}a{color:var(--accent)}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,main:focus-visible{outline:2px solid var(--accent);outline-offset:4px}[hidden]{display:none!important}svg{display:block;flex:none}.svg-definitions{position:absolute;overflow:hidden}.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.skip-link{position:fixed;left:20px;top:-60px;z-index:100;padding:10px 16px;border-radius:8px;background:var(--blue);color:white;text-decoration:none}.skip-link:focus{top:16px}.mobile-only{display:none!important}
.sidebar{width:var(--sidebar-width);flex:none;background:var(--sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:27px 18px 18px;z-index:40}.sidebar-brand{display:flex;align-items:center;justify-content:space-between;margin:0 10px 29px}.brand{display:flex;align-items:center;gap:11px;color:var(--text);text-decoration:none;font-size:28px;font-weight:720;letter-spacing:-1.3px;line-height:1}.brand svg{width:23px;height:30px}.brand-dot{color:var(--accent)}.new-chat{display:flex;align-items:center;gap:10px;background:var(--blue-bg);border:1px solid #5686ed38;color:var(--accent);border-radius:9px;padding:11px 12px;font-size:12px;font-weight:600;text-align:left;transition:background .16s}.new-chat:hover{background:var(--hover)}.new-chat svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8}.new-chat kbd{font:10px ui-sans-serif,system-ui,sans-serif;margin-left:auto;opacity:.65;white-space:nowrap}.conversation-search{display:flex;align-items:center;gap:9px;margin:18px 6px 26px;color:var(--subtle)}.conversation-search svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.7}.conversation-search input{width:100%;padding:5px 0;border:0;background:transparent;color:var(--text);font-size:12px;min-width:0}.conversation-search input::placeholder{color:var(--subtle)}.sidebar-heading{display:flex;justify-content:space-between;padding:0 10px;font-size:10px;text-transform:uppercase;font-weight:650;letter-spacing:1.4px;color:var(--subtle);margin-bottom:12px}.sidebar-heading>span:last-child{letter-spacing:0}.conversation-list{overflow-y:auto;min-height:0;flex:1}.conversation-item{display:flex;align-items:center;position:relative;border-radius:8px;margin-bottom:3px;min-width:0}.conversation-item:hover{background:var(--hover)}.conversation-item.active{background:var(--blue-bg)}.conversation-open{display:flex;gap:10px;align-items:center;background:none;padding:10px 29px 10px 10px;min-width:0;width:100%;text-align:left;font-size:12px;color:var(--muted)}.conversation-item.active .conversation-open{color:var(--text)}.conversation-open svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.5;opacity:.7}.conversation-open span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.conversation-delete{position:absolute;right:5px;padding:3px 5px;background:none;color:var(--subtle);border-radius:4px;font-size:17px;line-height:1;opacity:0}.conversation-item:hover .conversation-delete,.conversation-delete:focus-visible{opacity:1}.conversation-delete:hover{color:var(--danger)}.empty-sidebar{color:var(--subtle);font-size:12px;line-height:1.9;margin:10px 10px auto}.sidebar-bottom{border-top:1px solid var(--border);padding:15px 8px 0;margin-top:18px}.settings-button{width:100%;display:flex;align-items:center;gap:10px;padding:7px 0;background:none;color:var(--muted);text-align:left;font-size:12px}.settings-button:hover{color:var(--text)}.settings-button svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5}.local-note{font-size:10px;color:var(--subtle);display:flex;align-items:center;gap:6px;margin-top:15px;letter-spacing:.1px}.local-dot{height:4px;width:4px;border-radius:50%;background:var(--subtle)}
.app-shell{display:flex;flex-direction:column;flex:1;min-width:0;position:relative}.topbar{height:78px;flex:none;display:flex;justify-content:space-between;align-items:center;padding:0 38px;gap:15px}.topbar-title{min-width:0;display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted)}#chat-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:360px}.context-button{display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--border);padding:7px 11px;border-radius:7px;font-size:10px;color:var(--muted);white-space:nowrap}.context-button:hover{border-color:var(--subtle);color:var(--text)}.context-mark{font-size:10px;color:var(--accent)}.chevron{font-size:14px;line-height:10px;color:var(--subtle);margin-left:7px}.icon-button{display:grid;place-items:center;width:33px;height:33px;border-radius:7px;background:none;color:var(--muted)}.icon-button:hover{background:var(--hover);color:var(--text)}.icon-button svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.5}
main{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:0 30px;scrollbar-gutter:stable}.welcome{max-width:780px;margin:clamp(28px,8vh,100px) auto 32px;text-align:center;animation:welcome-in .4s ease-out}.welcome-eyebrow{display:flex;align-items:center;justify-content:center;gap:9px;color:var(--subtle);font-size:10px;letter-spacing:2.3px;font-weight:600}.welcome-eyebrow>span{width:4px;height:4px;border-radius:50%;background:var(--accent);box-shadow:0 0 14px #82a8ff60}.welcome-mark{height:60px;width:48px;margin:29px auto 23px;filter:drop-shadow(0 8px 25px #3268dc25)}h1{margin:0;font-size:clamp(37px,4.3vw,57px);font-weight:560;letter-spacing:-2.8px;line-height:1.12}h1>span{color:var(--accent)}.welcome>p{color:var(--muted);font-size:13px;line-height:1.9;margin:22px auto 34px}.suggestions{display:grid;grid-template-columns:repeat(3,1fr);gap:11px;max-width:760px;margin:auto;text-align:left}.suggestion{background:var(--surface);border:1px solid var(--border);padding:17px 14px 15px;border-radius:10px;position:relative;text-align:left;display:flex;flex-direction:column;gap:18px;transition:background .16s,border-color .16s,transform .16s;min-height:137px;min-width:0}.suggestion:hover{border-color:#6c94e26b;background:var(--hover);transform:translateY(-2px)}.suggestion-symbol{font-size:21px;line-height:1;color:var(--accent)}.suggestion strong{font-weight:500;color:var(--text);display:block;font-size:11px;margin-bottom:4px}.suggestion small{color:var(--muted);font-size:10px;line-height:1.6;display:block;padding-right:5px}.suggestion-arrow{position:absolute;right:13px;top:15px;font-size:15px;color:var(--subtle)}.welcome-footnote{margin-top:29px;font-size:10px;letter-spacing:1.7px;color:var(--subtle);font-weight:500}.welcome-footnote span{padding:0 12px;opacity:.7}.message-log{max-width:800px;margin:15px auto 40px}.message{display:flex;gap:15px;padding:24px 0;animation:message-in .2s ease-out}.message+.message{border-top:1px solid var(--border)}.avatar{width:28px;height:31px;flex:none;margin-top:2px;display:grid;place-items:center}.avatar svg{width:21px;height:27px}.avatar.user{height:28px;border:1px solid var(--border);background:var(--surface);border-radius:8px;font-size:10px;color:var(--muted);font-weight:600}.message-content{min-width:0;flex:1}.message-heading{display:flex;align-items:center;gap:9px;margin-bottom:9px;font-size:11px;font-weight:650}.message-heading span{color:var(--subtle);font-weight:400;font-size:10px}.message-body{font-size:14px;line-height:1.8;color:var(--text);overflow-wrap:anywhere}.message.user .message-body{white-space:pre-wrap}.message-body>:first-child{margin-top:0}.message-body>:last-child{margin-bottom:0}.message-body p{margin:0 0 13px}.message-body h2,.message-body h3,.message-body h4{font-size:16px;font-weight:600;line-height:1.5;margin:24px 0 9px;letter-spacing:-.2px}.message-body ul,.message-body ol{padding-left:23px;margin:10px 0 15px}.message-body li{padding-left:4px;margin:5px 0}.message-body blockquote{margin:14px 0;padding:2px 0 2px 15px;border-left:2px solid var(--blue);color:var(--muted)}.message-body code{font:12px ui-monospace,SFMono-Regular,Consolas,monospace;background:var(--blue-bg);padding:2px 5px;border-radius:4px}.message-body a{text-underline-offset:3px}.code-block{background:var(--sidebar);border:1px solid var(--border);border-radius:9px;margin:15px 0;overflow:hidden}.code-header{display:flex;justify-content:space-between;align-items:center;padding:7px 13px;background:var(--surface);border-bottom:1px solid var(--border);font-size:10px;color:var(--muted)}.code-copy{background:none;color:var(--muted);font-size:10px;padding:3px 0 3px 10px}.code-copy:hover{color:var(--accent)}.code-block pre{margin:0;padding:15px;overflow-x:auto;line-height:1.65;max-height:440px}.code-block code{background:none;padding:0;border-radius:0;white-space:pre;font-size:12px;overflow-wrap:normal}.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:8px;margin:14px 0;max-width:100%}.message-body table{border-collapse:collapse;width:100%;font-size:12px;white-space:nowrap}.message-body th,.message-body td{border-bottom:1px solid var(--border);padding:8px 12px;text-align:left}.message-body th{background:var(--surface);font-weight:600}.message-body tr:last-child td{border-bottom:0}.message-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:13px}.message-copy{background:none;padding:2px 0;font-size:10px;color:var(--subtle)}.message-copy:hover{color:var(--accent)}.source-links{display:flex;gap:5px;flex-wrap:wrap;margin-top:15px}.source-link{display:flex;align-items:center;gap:6px;border:1px solid var(--border);border-radius:5px;padding:4px 8px;font-size:10px;color:var(--muted);text-decoration:none}.source-link:hover{border-color:var(--accent);color:var(--accent)}.source-link::before{content:'↗';font-size:12px}.grounding-note{font-size:10px;color:var(--muted);margin:12px 0 0}.grounding-note.uncertain{border-left:2px solid #9a8059;padding-left:9px}.request-failure{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid #c9697533;border-radius:8px;background:#b3445108;margin:13px 0;color:var(--danger);font-size:12px}.request-failure span{flex:1}.retry-button{background:none;border:1px solid #c9697544;color:var(--danger);border-radius:5px;padding:3px 9px;font-size:11px;white-space:nowrap}.retry-button:hover{background:#b3445112}.typing{display:flex;align-items:center;gap:5px;height:22px}.typing i{height:5px;width:5px;border-radius:50%;background:var(--accent);animation:pulse 1.3s infinite}.typing i:nth-child(2){animation-delay:.16s}.typing i:nth-child(3){animation-delay:.32s}.typing-label{color:var(--muted);font-size:11px;margin-left:7px}.message-status{font-size:10px;color:var(--subtle);margin:7px 0 0}.jump-container{position:absolute;bottom:155px;left:0;right:0;display:flex;justify-content:center;pointer-events:none}.jump-latest{pointer-events:auto;padding:7px 13px;border:1px solid var(--border);background:var(--surface);border-radius:30px;box-shadow:0 5px 20px #0002;font-size:11px;color:var(--muted)}.jump-latest:hover{color:var(--text)}
.composer-area{flex:none;padding:12px 34px max(16px,env(safe-area-inset-bottom));background:linear-gradient(0deg,var(--bg) 85%,transparent)}.composer{max-width:800px;margin:auto;border:1px solid var(--border);border-radius:13px;background:var(--input);padding:16px 17px 11px;box-shadow:0 4px 20px #0000000b;transition:border-color .2s}.composer:focus-within{border-color:#6c94e26b}.composer textarea{display:block;resize:none;width:100%;min-height:29px;max-height:180px;padding:0;border:0;color:var(--text);background:transparent;font-size:13px;line-height:1.7;outline:none;overflow-y:auto}.composer textarea::placeholder{color:var(--subtle)}.composer textarea:focus-visible{outline:none}.composer-toolbar{display:flex;align-items:center;justify-content:space-between;min-height:31px;margin-top:11px}.composer-topic{font-size:10px;letter-spacing:1.3px;color:var(--subtle);display:flex;gap:12px;align-items:center}#character-count{font-size:10px;letter-spacing:0;color:var(--muted)}.send-button,.stop-button{height:31px;width:32px;border-radius:7px;display:grid;place-items:center;background:var(--blue);color:white;transition:background .15s}.send-button svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8}.send-button:hover{background:#5182eb}.send-button:disabled{background:var(--blue-bg);color:var(--subtle)}.stop-button{background:var(--hover);border:1px solid var(--border)}.stop-button>span{height:10px;width:10px;background:var(--text);border-radius:2px}.composer-hint{display:flex;justify-content:space-between;gap:20px;max-width:800px;margin:10px auto 0;font-size:10px;color:var(--subtle);letter-spacing:.05px}.keyboard-hint{white-space:nowrap}.keyboard-hint>span{padding:0 3px}.toast{position:fixed;z-index:100;bottom:28px;left:50%;transform:translateX(-50%);padding:11px 18px;background:var(--hover);border:1px solid var(--border);border-radius:9px;box-shadow:var(--shadow);font-size:12px;max-width:90vw}.noscript{position:fixed;inset:0;background:var(--bg);display:grid;place-items:center}
 dialog{width:min(540px,calc(100vw - 32px));max-height:calc(100dvh - 48px);overflow:auto;border:1px solid var(--border);border-radius:16px;background:var(--panel);color:var(--text);padding:27px;box-shadow:var(--shadow)}dialog::backdrop{background:#02050bad;backdrop-filter:blur(5px)}.dialog-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.eyebrow{color:var(--subtle);font-size:10px;letter-spacing:1.8px;font-weight:600;margin:0 0 5px}.dialog-header h2{font-size:23px;font-weight:550;letter-spacing:-.7px;margin:0}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0;border-bottom:1px solid var(--border)}.setting-row>span{min-width:0}.setting-row strong{font-size:12px;font-weight:550;display:block}.setting-row small{display:block;font-size:10px;color:var(--muted);margin-top:3px}.setting-row select,.setting-row input{width:160px;flex:none;min-height:36px;border:1px solid var(--border);background:var(--input);border-radius:6px;padding:7px 9px;color:var(--text);font-size:11px}.privacy-note{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:13px 15px;margin:22px 0}.privacy-note strong{font-size:11px;font-weight:500}.privacy-note p{font-size:10px;line-height:1.8;margin:4px 0 0;color:var(--muted)}.settings-actions{display:flex;justify-content:space-between;align-items:center;gap:20px}.text-button{font-size:10px;background:none;color:var(--muted);padding:6px 0}.text-button.danger{color:var(--danger)}.primary-button{background:var(--blue);color:white;border-radius:7px;padding:9px 14px;font-size:11px;font-weight:500}
::-webkit-scrollbar{height:6px;width:6px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:5px}::-webkit-scrollbar-track{background:transparent}@keyframes pulse{0%,70%,100%{opacity:.3;transform:translateY(0)}35%{opacity:1;transform:translateY(-2px)}}@keyframes welcome-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}@keyframes message-in{from{opacity:.4;transform:translateY(3px)}to{opacity:1;transform:none}}
@media(min-width:1600px){.welcome{margin-top:clamp(60px,12vh,170px)}}@media(max-width:1150px){:root{--sidebar-width:235px}.sidebar{padding-inline:13px}.topbar{padding-inline:25px}.new-chat kbd{display:none}.welcome{margin-top:clamp(25px,6vh,70px)}.suggestions{gap:8px}.suggestion{padding:15px 12px}.keyboard-hint{display:none}.composer-hint{justify-content:center}.welcome>p{font-size:12px}}
@media(max-width:800px){:root{--sidebar-width:266px}.mobile-only{display:grid!important}.sidebar{position:fixed;inset:0 auto 0 0;transform:translateX(-100%);transition:transform .2s ease-out;padding-top:max(24px,env(safe-area-inset-top));box-shadow:var(--shadow)}.sidebar-open .sidebar{transform:translateX(0)}.sidebar-backdrop{display:block;position:fixed;inset:0;background:#02050b99;z-index:30}.conversation-delete{opacity:.7}.topbar{height:65px;padding:0 18px}.topbar-title{font-size:11px}.context-button{max-width:210px;font-size:10px;padding:6px 8px;gap:6px}#context-label{overflow:hidden;text-overflow:ellipsis}.chevron{margin-left:0}main{padding-inline:22px;scrollbar-gutter:auto}.welcome{margin-top:35px}.welcome-mark{margin-top:25px;height:54px;width:43px}h1{font-size:45px;letter-spacing:-2px}.welcome>p{font-size:12px;max-width:420px}.suggestions{max-width:590px}.suggestion{min-height:132px}.suggestion strong{font-size:10px}.suggestion small{font-size:10px}.welcome-footnote{font-size:10px;letter-spacing:1.4px}.welcome-footnote span{padding:0 8px}.composer-area{padding:12px 22px max(14px,env(safe-area-inset-bottom))}.message{padding-block:20px;gap:12px}.message-body{font-size:13px}.message-log{margin-top:10px}.jump-container{bottom:145px}}
@media(max-width:520px){.topbar{padding:0 12px;gap:8px}.topbar-title{gap:4px}#chat-title{max-width:145px}.context-button{max-width:170px}.context-mark{display:none}.welcome{margin:24px auto}.welcome-eyebrow{font-size:10px;letter-spacing:1.7px}.welcome-mark{height:47px;width:38px;margin:22px auto 20px}h1{font-size:39px;letter-spacing:-1.8px}.welcome>p{font-size:11px;line-height:1.8;margin:18px auto 26px;max-width:310px}.desktop-break{display:none}.suggestions{display:flex;flex-direction:column;gap:8px;max-width:360px}.suggestion{min-height:0;flex-direction:row;align-items:center;gap:13px;padding:13px 15px}.suggestion-symbol{width:22px;font-size:21px}.suggestion strong{font-size:11px;margin:0}.suggestion small{font-size:10px}.suggestion-arrow{top:18px}.welcome-footnote{margin-top:22px;font-size:10px;letter-spacing:1px}.welcome-footnote span{padding:0 6px}main{padding-inline:18px}.composer-area{padding-inline:14px}.composer{padding:13px 14px 9px;border-radius:11px}.composer textarea{font-size:16px;line-height:1.6}.composer-toolbar{margin-top:7px}.composer-hint{font-size:10px;text-align:center;margin-top:8px}.message{gap:10px}.avatar{width:24px}.avatar svg{width:18px;height:24px}.message-body h2,.message-body h3,.message-body h4{font-size:15px}.message-body ul,.message-body ol{padding-left:19px}.request-failure{gap:8px;padding:10px;font-size:11px}.setting-row{align-items:flex-start;flex-direction:column;gap:9px}.setting-row select,.setting-row input{width:100%;font-size:16px}.settings-actions{gap:10px}.primary-button{font-size:10px}dialog{padding:22px}.jump-container{bottom:140px}.source-link{font-size:10px;max-width:100%}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}