*{box-sizing:border-box}
body{margin:0;font-family:Arial,sans-serif;color:#222;line-height:1.6}
.hero{
height:90vh;
background:linear-gradient(rgba(0,0,0,.55),rgba(0,0,0,.75)),url('imagens/alexandre.jpg');
background-size:cover;
background-position:center;
display:flex;
align-items:center;
justify-content:center;
text-align:center;
color:white;
}
.overlay{padding:30px}
h1{font-size:3rem;margin-bottom:5px}
h2{font-size:2rem}
section{padding:60px 10%;text-align:center}
.dark{background:#111;color:white}
.cards{display:flex;flex-wrap:wrap;gap:20px;justify-content:center}
.cards div{
padding:25px;
border-radius:15px;
box-shadow:0 5px 20px #ddd;
min-width:220px;
}
.btn{
display:inline-block;
background:#d4a017;
color:white;
padding:15px 30px;
border-radius:30px;
text-decoration:none;
font-weight:bold;
}
.cta{background:#f5f5f5}
footer{background:#111;color:white;text-align:center;padding:30px}

@media(max-width:600px){
h1{font-size:2.2rem}
section{padding:40px 5%}
}