:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-primary: #6366f1;--accent-hover: #4f46e5;--msg-sent: #4f46e5;--msg-received: #334155;--danger: #ef4444}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column}#root{width:100%;height:100vh;display:flex;justify-content:center;align-items:center}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-secondary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}