*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:Arial, sans-serif;
}

body{
background:#000;
color:#fff;
}

header{
display:flex;
justify-content:space-between;
align-items:center;
padding:20px 50px;
background:#000;
position:sticky;
top:0;
z-index:100;
}

.logo{
font-size:32px;
font-weight:bold;
}

.logo span{
color:red;
}

nav a{
color:#fff;
text-decoration:none;
margin:0 15px;
}

.btn-topo{
background:red;
padding:10px 20px;
border-radius:30px;
color:white;
text-decoration:none;
}

.hero{
height:700px;
background:linear-gradient(rgba(0,0,0,.6),rgba(0,0,0,.8)),
url('https://images.unsplash.com/photo-1516321318423-f06f85e504b3');
background-size:cover;
background-position:center;
display:flex;
align-items:center;
padding:60px;
}

.hero-content{
max-width:600px;
}

.hero h1{
font-size:55px;
color:white;
}

.hero p{
margin:20px 0;
font-size:20px;
}

.btn{
background:red;
padding:15px 25px;
border-radius:10px;
color:white;
text-decoration:none;
}

.planos{
padding:80px 20px;
text-align:center;
}

.cards{
display:flex;
justify-content:center;
gap:25px;
flex-wrap:wrap;
margin-top:40px;
}

.card{
width:300px;
padding:30px;
border:2px solid red;
border-radius:15px;
background:#111;
}

.card h3{
font-size:42px;
color:red;
}

.card h4{
font-size:32px;
margin:20px 0;
}

.card a{
display:inline-block;
background:red;
padding:12px 25px;
color:white;
text-decoration:none;
border-radius:10px;
}

.vantagens{
display:flex;
justify-content:center;
flex-wrap:wrap;
gap:40px;
padding:50px;
background:#090909;
}

.indique{
padding:80px;
text-align:center;
background:#111;
}

.indique a{
display:inline-block;
margin-top:20px;
background:red;
padding:15px 30px;
color:white;
text-decoration:none;
border-radius:10px;
}

footer{
text-align:center;
padding:25px;
background:#000;
}

.whatsapp{
position:fixed;
bottom:20px;
right:20px;
background:#25D366;
width:65px;
height:65px;
display:flex;
align-items:center;
justify-content:center;
font-size:30px;
border-radius:50%;
text-decoration:none;
}

.popup{
position:fixed;
width:100%;
height:100%;
background:rgba(0,0,0,.7);
display:flex;
justify-content:center;
align-items:center;
z-index:999;
}

.popup-box{
background:white;
color:black;
padding:30px;
border-radius:15px;
text-align:center;
}

.popup button{
margin-top:15px;
background:red;
color:white;
border:none;
padding:10px 20px;
cursor:pointer;
}