body{background-color:#f5f5f5;font-family:Roboto,sans-serif}h1,h2,h3,h4,h5,h6{font-family:Montserrat,sans-serif}.floating-btn{border-radius:50%;position:fixed;bottom:20px;right:20px;z-index:1000;box-shadow:0 2px 10px #0003}.gradient-btn{background:linear-gradient(135deg,#2196f3,#f44336)!important;color:#fff!important}.gradient-btn:hover{background:linear-gradient(135deg,#1e88e5,#d32f2f)!important}.content{height:200vh}