*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#0f1117;--bg-secondary:#161922;--bg-tertiary:#1c1f2e;--bg-hover:#252838;--bg-active:#2d3148;--text-primary:#e4e6ef;--text-secondary:#9ca0b0;--text-muted:#6b6f82;--accent:#6c63ff;--accent-hover:#5a52e0;--danger:#e05252;--danger-hover:#c94444;--border:#2a2d3e;--radius:8px;--radius-sm:4px;--shadow:0 2px 8px #0000004d;--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-mono:"SF Mono","Fira Code","Consolas",monospace}#root,body,html{height:100%}body{-webkit-font-smoothing:antialiased;color:#e4e6ef;color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-family:var(--font);line-height:1.5}.loading-screen,body{background:#0f1117;background:var(--bg-primary)}.loading-screen{align-items:center;display:flex;height:100vh;justify-content:center}.spinner{animation:spin .8s linear infinite;border:3px solid #2a2d3e;border-top-color:#6c63ff;border:3px solid var(--border);border-radius:50%;border-top-color:var(--accent);height:32px;width:32px}@keyframes spin{to{transform:rotate(1turn)}}.btn{align-items:center;border:none;border-radius:4px;border-radius:var(--radius-sm);cursor:pointer;display:inline-flex;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-family:var(--font);font-size:14px;font-weight:500;justify-content:center;padding:8px 16px;transition:background .15s,opacity .15s}.btn:disabled{cursor:not-allowed;opacity:.5}.btn-primary{background:#6c63ff;background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:#5a52e0;background:var(--accent-hover)}.btn-ghost{background:#0000;color:#9ca0b0;color:var(--text-secondary)}.btn-ghost:hover{background:#252838;background:var(--bg-hover);color:#e4e6ef;color:var(--text-primary)}.btn-danger{background:#0000;color:#e05252;color:var(--danger)}.btn-danger:hover{background:#e05252;background:var(--danger);color:#fff}.btn-small{font-size:13px;padding:4px 10px}.btn-full{width:100%}.btn-icon{border-radius:4px;border-radius:var(--radius-sm);font-size:16px;height:28px;padding:0;width:28px}.btn-active{background:#6c63ff!important;background:var(--accent)!important;color:#fff!important}.login-container{align-items:center;background:linear-gradient(135deg,#0f1117,#1a1a3e);background:linear-gradient(135deg,var(--bg-primary),#1a1a3e);display:flex;justify-content:center;min-height:100vh;padding:20px}.login-card{background:#161922;background:var(--bg-secondary);border:1px solid #2a2d3e;border:1px solid var(--border);border-radius:8px;border-radius:var(--radius);box-shadow:0 2px 8px #0000004d;box-shadow:var(--shadow);max-width:400px;padding:40px;width:100%}.login-header{margin-bottom:32px;text-align:center}.login-header h1{color:#6c63ff;color:var(--accent);font-size:28px;font-weight:700}.login-header p{color:#9ca0b0;color:var(--text-secondary);margin-top:4px}.landing-card{background:#161922;background:var(--bg-secondary);border:1px solid #2a2d3e;border:1px solid var(--border);border-radius:8px;border-radius:var(--radius);box-shadow:0 2px 8px #0000004d;box-shadow:var(--shadow);max-width:400px;padding:60px 40px;text-align:center;width:100%}.landing-title{color:#6c63ff;color:var(--accent);font-size:36px;font-weight:700;margin-bottom:8px}.landing-subtitle{color:#9ca0b0;color:var(--text-secondary);font-size:15px;margin-bottom:32px}.login-form{gap:16px}.form-group,.login-form{display:flex;flex-direction:column}.form-group{gap:6px}.form-group label{color:#9ca0b0;color:var(--text-secondary);font-size:13px;font-weight:500}.chat-input,.form-group input,.new-doc-form input,.search-box input{background:#1c1f2e;background:var(--bg-tertiary);border:1px solid #2a2d3e;border:1px solid var(--border);border-radius:4px;border-radius:var(--radius-sm);color:#e4e6ef;color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-family:var(--font);font-size:14px;outline:none;padding:10px 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