.chat-workspace{--chat-bg:#0e1322;--chat-panel:#151b2d;--chat-soft:#1c2540;--chat-line:#94aad222;--chat-text:#e7edfb;--chat-muted:#99a7c1;--chat-accent:#b3bfff;background:radial-gradient(ellipse at 55% 12%,#6a7bbb09,transparent 60%),var(--chat-bg);color:var(--chat-text);overflow:hidden;min-height:400px}body:has(.chat-workspace) .site-footer{display:none}.chat-workspace :is(button,input,textarea,select):focus-visible{outline:2px solid #91adf4;outline-offset:3px}.chat-workspace button{transition:background .15s,color .15s}.chat-main{position:relative;overflow:hidden}.chat-topbar{height:70px;display:flex;gap:10px;align-items:center;padding:0 23px;border-bottom:1px solid var(--chat-line);background:var(--chat-bg);z-index:20}.chat-topbar,.chat-topbar button{flex-shrink:0}.chat-history-toggle{display:grid;place-items:center;width:33px;height:34px;border:1px solid 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