body{
    font-family: Arial, sans-serif;
}

.hero{
    background:#0f172a;
    color:#fff;
    padding:100px 0;
}

.hero h1{
    font-size:3rem;
    font-weight:700;
}

.hero p{
    font-size:1.2rem;
}

.card{
    border:none;
    box-shadow:0 0 20px rgba(0,0,0,.08);
}

.whatsapp-btn{
    position:fixed;
    right:20px;
    bottom:20px;
    background:#25D366;
    color:#fff;
    padding:15px 25px;
    border-radius:50px;
    text-decoration:none;
    font-weight:bold;
    z-index:9999;
}

.whatsapp-btn:hover{
    color:white;
}

section{
    overflow:hidden;
}