:root{color-scheme:light;--bg:#f7f8fc;--panel:#eef1f7;--text:#202124;--muted:#6d7280;--line:#dfe3eb;--blue:#2d66d8;--purple:#8b4fc7;--danger:#b3261e;--shadow:0 14px 40px rgba(40,50,75,.14)}*{box-sizing:border-box}body{margin:0;font:15px/1.5 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--text);background:var(--bg)}button,input,textarea{font:inherit}.hidden{display:none!important}.shell{height:100vh;display:grid;grid-template-columns:280px 1fr;overflow:hidden}aside{background:#eef1f6;padding:14px 13px 10px;display:flex;flex-direction:column;border-right:1px solid #e8ebf1}.side-top{display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 9px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#343741;font-size:18px;font-weight:650}.brand-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:11px;color:white;background:linear-gradient(135deg,#2f7cf5,#9b51d4 65%,#ee6c9e);box-shadow:0 5px 14px #6c78dd44}.brand-mark.large{width:48px;height:48px;margin:auto;border-radius:16px;font-size:24px}.new-chat{width:max-content;margin:20px 5px 26px;border:0;border-radius:16px;padding:13px 18px;background:#dfe7f7;color:#273754;cursor:pointer;font-weight:600}.new-chat:hover{background:#d5e1f5}.new-chat span{font-size:19px;margin-right:7px}.history-label{padding:0 14px 8px;color:#777d89;font-size:12px;font-weight:650;text-transform:uppercase;letter-spacing:.07em}#chat-list{overflow:auto;flex:1}.chat-item{display:flex;align-items:center;width:100%;border:0;background:transparent;padding:10px 12px;border-radius:10px;cursor:pointer;text-align:left;color:#343741;gap:8px}.chat-item:hover,.chat-item.active{background:#dfe4ed}.chat-item span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.delete-chat{opacity:0;border:0;background:none;padding:2px;color:#707683;cursor:pointer}.chat-item:hover .delete-chat{opacity:1}.user-row{display:flex;align-items:center;gap:10px;padding:10px 8px 4px;border-top:1px solid #dfe3e9}.avatar{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:linear-gradient(145deg,#dde6fb,#dcd4f5);color:#405582;font-weight:700}.user-text{display:flex;flex-direction:column;min-width:0;flex:1}.user-text strong{font-size:13px}.user-text span{font-size:11px;color:var(--muted)}.icon{border:0;background:transparent;border-radius:50%;width:36px;height:36px;cursor:pointer;color:#505561}.icon:hover{background:#dde2ea}main{min-width:0;display:grid;grid-template-rows:64px 1fr auto;position:relative}header{display:flex;align-items:center;padding:0 24px;gap:10px}.model-button{border:0;background:transparent;border-radius:12px;padding:9px 12px;font-size:17px;font-weight:600;color:#3f434b;cursor:pointer}.model-button:hover{background:#eceff5}.chevron{padding-left:6px;color:#7b808a}.private-pill{margin-left:auto;font-size:12px;color:#50617c;background:#e9eef8;border-radius:99px;padding:5px 10px}.model-menu{position:absolute;left:24px;top:56px;z-index:20;background:white;border:1px solid var(--line);border-radius:14px;padding:7px;width:min(340px,calc(100vw - 48px));box-shadow:var(--shadow)}.model-option{display:block;width:100%;border:0;background:white;border-radius:9px;padding:10px 12px;text-align:left;cursor:pointer}.model-option:hover{background:#f1f4f9}.model-option strong,.model-option small{display:block}.model-option small{color:var(--muted);margin-top:2px}.conversation{overflow-y:auto;scroll-behavior:smooth}.welcome{max-width:820px;margin:10vh auto 30px;padding:0 26px}.welcome-star{font-size:32px;background:linear-gradient(90deg,#3678e8,#8657ce,#e26691);color:transparent;background-clip:text;width:max-content}.welcome h2{font-size:42px;line-height:1.15;margin:12px 0 10px;font-weight:650;letter-spacing:-1.2px;background:linear-gradient(90deg,#3274e1,#9654c9 52%,#db5b83);color:transparent;background-clip:text}.welcome h2 span{color:#4d5156}.welcome>p{color:var(--muted);font-size:17px}.suggestions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:34px}.suggestions button{min-height:78px;border:1px solid #e2e6ed;background:#f0f2f7;border-radius:16px;padding:15px;text-align:left;color:#41454d;cursor:pointer}.suggestions button:hover{background:#e7ebf3;border-color:#d9dee8}.messages{max-width:860px;margin:0 auto;padding:26px 24px 40px}.message{display:grid;grid-template-columns:36px 1fr;gap:14px;margin:0 0 28px}.message.user{grid-template-columns:1fr}.message.user .bubble{justify-self:end;background:#e9edf6;border-radius:20px 20px 4px 20px;padding:11px 16px;max-width:78%}.ai-avatar{width:32px;height:32px;display:grid;place-items:center;border-radius:11px;color:white;background:linear-gradient(135deg,#357af0,#9951cb 70%,#e66c95)}.content{min-width:0;white-space:pre-wrap;overflow-wrap:anywhere}.content pre{white-space:pre;overflow:auto;background:#24272e;color:#f5f6f7;border-radius:12px;padding:15px}.content code{font-family:"SFMono-Regular",Consolas,monospace;background:#e9ecf1;border-radius:4px;padding:1px 4px}.content pre code{background:transparent;padding:0}.thinking{color:var(--muted);animation:pulse 1.2s infinite}@keyframes pulse{50%{opacity:.45}}footer{padding:10px 22px 14px;background:linear-gradient(transparent,var(--bg) 26%)}.composer,.attachment{max-width:820px;margin:auto;background:white;border:1px solid #dde1e8;box-shadow:0 4px 18px #26375314;border-radius:25px;display:flex;align-items:flex-end;padding:7px 8px}.composer:focus-within{border-color:#b8c4d9;box-shadow:0 5px 22px #26375320}.composer textarea{flex:1;border:0;outline:0;resize:none;padding:10px 7px;max-height:180px;background:transparent}.compose-icon,.send{flex:0 0 38px;width:38px;height:38px;border:0;border-radius:50%;cursor:pointer}.compose-icon{background:transparent;color:#555b66;font-size:22px}.compose-icon:hover{background:#f0f2f5}.send{background:#28384e;color:white;font-size:22px}.send:disabled{background:#e3e6eb;color:#a4a9b1;cursor:default}.attachment{padding:8px 14px;margin-bottom:7px;border-radius:14px;color:#4f5662;font-size:13px;justify-content:space-between}.attachment button{border:0;background:none;cursor:pointer}.notice{text-align:center;color:#8a8f98;font-size:11px;margin:7px 0 0}.auth{min-height:100vh;display:grid;place-items:center;padding:22px;background:radial-gradient(circle at 50% 10%,#e9e6fa,transparent 40%),var(--bg)}.auth-card{background:#fff;border:1px solid #e1e4eb;border-radius:24px;box-shadow:var(--shadow);width:min(430px,100%);padding:38px}.auth-card h1{text-align:center;margin:15px 0 3px}.auth-card>p{text-align:center;color:var(--muted);margin:0 0 28px}.auth-card label{display:block;font-size:13px;font-weight:600;margin:15px 0}.auth-card input{display:block;width:100%;margin-top:6px;padding:12px;border:1px solid #ccd2dc;border-radius:10px;outline:none}.auth-card input:focus{border-color:#6c83ad;box-shadow:0 0 0 3px #6481b522}.primary{width:100%;border:0;border-radius:11px;background:#315fbd;color:white;padding:12px;margin-top:7px;font-weight:650;cursor:pointer}.error{color:var(--danger)!important;min-height:22px;font-size:13px}.mobile{display:none}@media(max-width:760px){.shell{grid-template-columns:1fr}aside{position:fixed;inset:0 auto 0 0;width:min(310px,88vw);z-index:30;transform:translateX(-105%);transition:.2s;box-shadow:var(--shadow)}aside.open{transform:none}.mobile{display:inline-grid;place-items:center}header{padding:0 10px}.model-menu{left:52px}.welcome{margin-top:6vh}.welcome h2{font-size:32px}.suggestions{grid-template-columns:1fr}.message.user .bubble{max-width:90%}footer{padding-inline:10px}}