body{font-family:Segoe UI;margin:0} .login-body{display:flex;height:100vh;justify-content:center;align-items:center;background:linear-gradient(135deg,#5B3DF5,#2F80ED)} .login-card{background:#fff;padding:30px;border-radius:20px}.top{background:#5B3DF5;color:#fff;padding:15px}.chat{padding:20px}