:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f5f7f3;--panel-border:#d8ded2;--text:#172016;--muted:#667065;--accent:#1f7a5a;--accent-strong:#155f46;--assistant:#eef4ea;--user:#e7f0ff;--shadow:0 18px 55px #1f2d2224;font-synthesis:none;color:var(--text);background:var(--bg);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}*{box-sizing:border-box}body{background:linear-gradient(#f5f7f3db,#f5f7f3eb),url(https://images.unsplash.com/photo-1519389950473-47ba0277781c?auto=format&fit=crop&w=1800&q=80) 50%/cover fixed;min-width:320px;min-height:100vh;margin:0}button,textarea{font:inherit}button{touch-action:manipulation}.appFrame{grid-template-columns:260px minmax(0,960px);justify-content:center;gap:18px;min-height:100vh;padding:24px;display:grid}.sidebar,.chatPanel{border:1px solid var(--panel-border);box-shadow:var(--shadow);background:#fffffff0;border-radius:8px}.sidebar{flex-direction:column;gap:18px;height:min(780px,100vh - 48px);padding:18px;display:flex;overflow:hidden}.chatPanel{grid-template-rows:auto 1fr auto auto;height:min(780px,100vh - 48px);display:grid;overflow:hidden}.profileBlock{grid-template-columns:58px 1fr;align-items:center;gap:12px;display:grid}.profileImage,.messageAvatar{border:1px solid var(--panel-border);color:var(--accent);background:#fff;border-radius:8px;place-items:center;font-weight:800;display:grid;overflow:hidden}.profileImage{cursor:pointer;width:58px;height:58px}.profileImage input{display:none}.profileImage img,.messageAvatar img{object-fit:cover;width:100%;height:100%}.topbar{border-bottom:1px solid var(--panel-border);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#ffffffb8;justify-content:space-between;align-items:center;gap:16px;padding:18px 20px;display:flex}.eyebrow{color:var(--accent);text-transform:uppercase;margin:0 0 4px;font-size:.78rem;font-weight:700}h1,h2{color:var(--text);margin:0;line-height:1.05}h1{font-size:clamp(1.45rem,3vw,2.2rem)}h2{font-size:1.05rem}.iconButton{border:1px solid var(--panel-border);width:42px;height:42px;color:var(--text);cursor:pointer;background:#fff;border-radius:8px;place-items:center;display:grid}.iconButton:hover{border-color:var(--accent)}.toggleButton{border:1px solid var(--panel-border);min-height:48px;color:var(--text);cursor:pointer;background:#fff;border-radius:8px;justify-content:space-between;align-items:center;gap:12px;padding:0 13px;display:flex}.toggleButton.active{border-color:var(--accent);background:var(--assistant)}.toggleButton strong{color:var(--accent)}.sidebarStatus{color:var(--muted);font-size:.92rem;line-height:1.4}.sessionHeader{color:var(--text);justify-content:space-between;align-items:center;gap:10px;padding-top:4px;font-weight:800;display:flex}.sessionHeader button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:8px;height:34px;padding:0 12px;font-weight:800}.sessionList{flex-direction:column;gap:8px;min-height:0;padding-right:2px;display:flex;overflow-y:auto}.sessionRow{grid-template-columns:1fr 30px;gap:6px;display:grid}.sessionRow>button{border:1px solid var(--panel-border);min-width:0;color:var(--text);cursor:pointer;background:#fff;border-radius:8px}.sessionRow>button:first-child{text-align:left;gap:3px;padding:9px 10px;display:grid}.sessionRow span{text-overflow:ellipsis;white-space:nowrap;font-weight:700;overflow:hidden}.sessionRow small{color:var(--muted);font-size:.75rem}.sessionRow.active>button:first-child{border-color:var(--accent);background:var(--assistant)}.deleteSession{color:var(--muted);place-items:center;display:grid}.messages{flex-direction:column;gap:14px;padding:22px;display:flex;overflow-y:auto}.messageWrap{align-items:flex-start;gap:10px;width:min(78%,680px);display:flex}.messageWrap.assistant{align-self:flex-start}.messageWrap.user{justify-content:flex-end;align-self:flex-end}.messageAvatar{flex:0 0 38px;width:38px;height:38px;font-size:.8rem}.message{border:1px solid var(--panel-border);white-space:pre-wrap;overflow-wrap:anywhere;text-align:left;border-radius:8px;flex:1;min-width:0;padding:13px 15px;line-height:1.5}.message.assistant{background:var(--assistant)}.message.user{background:var(--user)}.message.status{color:var(--muted)}.messageAttachments{flex-wrap:wrap;gap:6px;margin-top:10px;display:flex}.messageAttachments span,.attachmentChip{border:1px solid var(--panel-border);color:var(--muted);background:#fff;border-radius:8px;padding:6px 8px;font-size:.82rem;line-height:1.2}.attachmentTray{border-top:1px solid var(--panel-border);background:#fff;flex-wrap:wrap;gap:8px;padding:10px 16px;display:flex}.attachmentChip{align-items:center;gap:8px;display:inline-flex}.attachmentChip button{background:var(--assistant);width:22px;height:22px;color:var(--text);cursor:pointer;border:0;border-radius:8px}.composer{border-top:1px solid var(--panel-border);background:#fff;grid-template-columns:auto 1fr auto;gap:12px;padding:16px;display:grid}.fileButton,.composer button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:8px;place-items:center;min-width:76px;height:46px;padding:0 16px;font-weight:700;display:grid}.fileButton{border:1px solid var(--panel-border);color:var(--accent);background:#fff}.fileButton input{display:none}textarea{resize:vertical;border:1px solid var(--panel-border);width:100%;max-height:160px;color:var(--text);background:#fff;border-radius:8px;outline:none;padding:13px 14px}textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px #1f7a5a29}.composer button:hover{background:var(--accent-strong)}.composer button:disabled{cursor:wait;opacity:.7}.srOnly{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width<=820px){.appFrame{grid-template-columns:1fr;gap:0;padding:0}.sidebar{height:auto;box-shadow:none;border-left:0;border-right:0;border-radius:0}.chatPanel{border-left:0;border-right:0;border-radius:0;height:calc(100vh - 165px)}.message{width:92%}.composer{grid-template-columns:1fr}}