:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#202b38;background:#fff;font-synthesis:none;--muted:#7a8795;--border:#e7ebef;--accent:#156b64}
*{box-sizing:border-box}body{margin:0;display:flex;min-height:100dvh}button,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.5}button:focus-visible,a:focus-visible,textarea:focus-visible{outline:3px solid #78c8bd;outline-offset:3px}button{color:inherit}a{color:inherit;text-decoration:none}.sidebar{width:270px;flex-shrink:0;background:#f8fafb;border-right:1px solid var(--border);padding:30px 22px 22px;display:flex;flex-direction:column;height:100dvh;position:sticky;top:0}.brand{display:flex;gap:12px;align-items:center;font-size:18px;font-weight:650;letter-spacing:-.3px}.brand-mark,.welcome-mark{display:grid;place-items:center;background:var(--accent);color:white;border-radius:12px;font-weight:650}.brand-mark{height:39px;width:39px;font-size:21px}.brand-sub{display:block;font-size:11px;letter-spacing:.2px;color:var(--muted);font-weight:400;margin-top:4px}.new-chat{display:flex;align-items:center;justify-content:center;gap:10px;margin:32px 0 34px;padding:12px;border:1px solid #d9e2e7;border-radius:9px;background:white;font-size:13px;font-weight:600}.new-chat:hover{border-color:var(--accent);background:#f0f7f5}.new-chat>span{font-size:20px;font-weight:400}.sidebar-section{margin-bottom:27px}.section-label{font-size:10px;font-weight:700;letter-spacing:1.5px;color:#8a97a5}.model-card{display:flex;align-items:center;gap:11px;padding:16px 0}.model-icon{display:grid;place-items:center;width:32px;height:32px;background:#e6eeef;border-radius:8px;color:#4d6b73;font-size:13px;font-weight:700}.model-card strong,.model-card span:not(.model-icon){display:block}.model-card strong{font-size:13px;font-weight:600}.model-card div>span{font-size:11px;color:var(--muted);margin-top:4px}.section-row{display:flex;align-items:center;justify-content:space-between}.icon-button{border:0;background:transparent;font-size:20px;color:var(--muted);padding:0 3px}.servers{margin-top:14px}.server{margin-bottom:18px}.server-heading{font-size:13px;font-weight:600;display:flex;align-items:center;gap:8px}.server-dot,.connection-dot{width:6px;height:6px;border-radius:100%;background:#379f83;display:inline-block;flex-shrink:0}.server-dot.failed{background:#bf685e}.tool-name{display:block;font-size:11px;color:#7c8895;padding:8px 0 0 14px;overflow-wrap:anywhere}.sidebar-footer{border-top:1px solid var(--border);margin-top:auto;padding-top:19px;display:flex;align-items:center;gap:9px}.sidebar-footer strong{font-size:12px;font-weight:500}.sidebar-footer div>span{display:block;font-size:10px;color:var(--muted);margin-top:4px}main{flex:1;min-width:0;height:100dvh;display:flex;flex-direction:column}.topbar{height:76px;flex-shrink:0;padding:0 34px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.topbar strong{font-size:14px;font-weight:600}.badge{font-size:10px;background:#f3f6f7;color:#778590;border:1px solid #e9edf0;border-radius:5px;padding:4px 7px;margin-left:12px}.connection{font-size:11px;color:#739186}.messages{flex:1;overflow-y:auto;padding:32px max(30px,calc((100% - 790px)/2));scroll-behavior:smooth}.welcome{max-width:790px;margin:10vh auto 35px;text-align:center}.welcome-mark{height:51px;width:51px;margin:0 auto 25px;font-size:28px;border-radius:14px}.eyebrow{font-size:9px!important;font-weight:650;letter-spacing:1.6px;color:#8999a3!important;margin-bottom:17px!important}.welcome h1{font-size:30px;font-weight:550;letter-spacing:-.9px;margin:0 0 13px}.welcome>p{font-size:13px;color:var(--muted);margin:0}.suggestions{display:grid;grid-template-columns:repeat(3,1fr);gap:13px;margin-top:36px;text-align:left}.suggestions>button{border:1px solid var(--border);border-radius:11px;background:white;padding:20px 15px;text-align:left;transition:background .15s,border-color .15s}.suggestions>button:hover{background:#f6faf9;border-color:#b5d4cc}.suggestion-icon{font-size:23px;color:var(--accent);display:block;margin-bottom:15px;height:22px}.suggestions strong{display:block;font-size:12px;font-weight:600;margin-bottom:7px}.suggestions button>span:last-child{font-size:10px;color:var(--muted);line-height:1.5;display:block}.composer-area{width:min(850px,100%);align-self:center;padding:15px 30px 25px}.composer{display:flex;gap:12px;align-items:flex-end;border:1px solid #dfe5e9;border-radius:13px;padding:15px;background:#fff;box-shadow:0 3px 14px #172f4410}.composer:focus-within{border-color:#9cbbb5}.composer textarea{resize:none;flex:1;min-height:25px;max-height:140px;line-height:1.65;border:0;outline:0;font-size:13px;color:inherit;background:transparent}.composer textarea:focus-visible{outline:none}.composer textarea::placeholder{color:#98a2ac}.composer button{height:32px;width:32px;border:0;border-radius:8px;background:var(--accent);color:white;font-size:21px;flex-shrink:0}.composer-meta{display:flex;justify-content:space-between;gap:15px;font-size:10px;color:#99a2ab;padding:12px 5px 0}.error{font-size:12px;color:#a3443b;background:#fef3f0;border-radius:8px;padding:11px 14px;margin:0 0 10px;overflow-wrap:anywhere}.message-row{display:flex;gap:12px;max-width:790px;margin:0 auto 28px}.avatar{height:30px;width:30px;flex-shrink:0;border-radius:9px;display:grid;place-items:center;font-size:11px;font-weight:600;background:#edf1f4;color:#6f8091}.message-row.assistant .avatar{background:#e5f2ee;color:var(--accent)}.message-body{flex:1;min-width:0}.message-label{font-size:11px;font-weight:600;margin:2px 0 10px}.message-text{font-size:14px;line-height:1.85;white-space:pre-wrap;overflow-wrap:anywhere}.message-row.user .message-text{color:#435361}.tool-trace{margin:13px 0;border:1px solid #e4ebe9;border-radius:8px;background:#f8fbfa;padding:0 12px;font-size:11px}.tool-trace summary{cursor:pointer;padding:11px 0;color:#4c7167;overflow-wrap:anywhere}.tool-trace pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:10px;line-height:1.7;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;max-height:240px;overflow:auto;margin:0 0 12px;color:#6c7a80}.empty-response{color:var(--muted)}.muted{font-size:11px;color:var(--muted);line-height:1.6}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:900px){.sidebar{width:218px;padding:25px 18px}.topbar{padding:0 25px}.welcome{margin-top:8vh}.welcome h1{font-size:26px}.suggestions{grid-template-columns:1fr}.suggestions>button{padding:15px}.suggestion-icon{display:none}.suggestions strong{margin:0 0 5px}.suggestions{gap:8px;margin-top:26px}}@media(max-width:620px){.sidebar{display:none}.topbar{height:64px;padding:0 19px}.messages{padding:25px 20px}.composer-area{padding:10px 16px 20px}.welcome{margin:6vh auto 20px}.welcome h1{font-size:26px}.composer-meta{font-size:9px}.badge{margin-left:8px}.connection{font-size:10px}.message-text{font-size:13px}}
.topbar-actions { display: flex; align-items: center; gap: 14px; }
.auth-button { border: 1px solid #d5dbda; border-radius: 8px; background: #fff; color: #335c55; padding: 9px 13px; font: inherit; font-size: 13px; cursor: pointer; }
.auth-button:hover { background: #f4f7f6; }
[hidden] { display: none !important; }