:root{--bg-color:#f8fafc;--bg-white:#fff;--text-primary:#1e293b;--text-secondary:#64748b;--accent-color:#2563eb;--accent-hover:#1d4ed8;--bot-msg-bg:#f1f5f9;--user-msg-bg:#2563eb;--border-color:#e2e8f0}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--text-primary);background-color:#f1f5f9;margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px}#root{background-color:var(--bg-color);flex-direction:column;width:100%;min-height:100vh;display:flex;position:relative;overflow:hidden}.chat-header{background-color:var(--bg-white);border-bottom:1px solid var(--border-color);z-index:10;align-items:center;gap:.75rem;padding:.75rem 1rem;display:flex}.avatar{background:var(--accent-color);color:#fff;border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;font-size:1rem;font-weight:700;display:flex}.header-info h1{color:var(--text-primary);margin-bottom:0;font-size:.95rem;font-weight:700}.header-info 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.2s}.submit-btn:hover{background-color:var(--accent-hover)}.auth-switch{text-align:center;color:var(--text-secondary);font-size:.8rem}.auth-switch span{color:var(--accent-color);cursor:pointer;font-weight:600}:root{--k-bg:#f8fafc;--k-sidebar:#0f172a;--k-sidebar-hover:#ffffff0f;--k-sidebar-active:#6366f126;--k-border:#e2e8f0;--k-text-main:#0f172a;--k-text-muted:#64748b;--k-primary:#1e293b;--k-primary-hover:#0f172a;--k-accent:#6366f1;--k-white:#fff;--k-radius:10px;--k-shadow:0 1px 3px #0000000d, 0 4px 6px -1px #0000001a}.k-dashboard{background:var(--k-bg);width:100vw;height:100vh;color:var(--k-text-main);font-family:Inter,-apple-system,sans-serif;transition:all .3s;display:flex;overflow:hidden}.k-sidebar{background:var(--k-sidebar);color:#fff;z-index:100;flex-direction:column;width:280px;min-width:280px;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;position:relative}.k-dashboard--collapsed 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