:root{--ink:#0f1419;--muted:#536471;--line:#eff3f4;--blue:#1d9bf0;--hover:#f7f9f9;--soft:#eff3f4;--green:#00ba7c;--pink:#f91880;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:#fff}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:#fff}body{font-size:15px;line-height:1.35}button,input{font:inherit;color:inherit}button,a{-webkit-tap-highlight-color:transparent}.hidden{display:none!important}.app-shell{width:1225px;max-width:100%;margin:0 auto;display:grid;grid-template-columns:275px 600px 350px;gap:0}.left-rail{position:relative}.left-inner{position:fixed;top:0;width:275px;height:100dvh;padding:0 24px 12px 8px;display:flex;flex-direction:column}.brand{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;text-decoration:none;color:var(--ink);font-size:20px;font-weight:800}.brand:hover{background:var(--soft)}.brand span{letter-spacing:-1px}.left-inner nav{display:grid;align-content:start}.nav-item{width:max-content;max-width:100%;min-height:52px;border:0;border-radius:9999px;background:transparent;padding:0 16px 0 12px;display:flex;align-items:center;gap:20px;text-decoration:none;color:var(--ink);cursor:pointer}.nav-item:hover{background:var(--soft)}.nav-item svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}.nav-item.active svg{fill:var(--ink)}.nav-item b{font-size:20px;font-weight:400}.nav-item.active b{font-weight:700}.compose-button{width:214px;height:52px;margin-top:14px;border:0;border-radius:9999px;background:var(--blue);color:#fff;font-size:17px;font-weight:700}.compose-button:hover{background:#1a8cd8}.account-card{min-height:64px;margin-top:auto;border-radius:9999px;padding:10px;display:grid;grid-template-columns:40px minmax(0,1fr) 28px;gap:10px;align-items:center}.account-card:hover{background:var(--soft)}.account-card>div:nth-child(2){display:grid}.account-card b{font-size:14px}.account-card span{font-size:14px;color:var(--muted)}.avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:800;color:#fff;background:#111}.avatar.news{background:linear-gradient(135deg,#111 30%,#1d9bf0)}.avatar.openai{background:#111}.avatar.anthropic{background:#d97757}.avatar.google{background:#4285f4}.avatar.xai{background:#111}.avatar.mistral{background:#f77b35}.avatar.meta{background:#0866ff}.avatar.nvidia{background:#76b900}.avatar.microsoft{background:#737373}.avatar.huggingface{background:#ffbd12;color:#111}.avatar.langchain{background:#1c3c3c}
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@media(max-width:1000px){.app-shell{width:688px;grid-template-columns:88px 600px}.right-rail{display:none}}
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