:root{
  --primary:#003366;
  --secondary:#0059aa;
  --light:#f4f6f9;
  --accent:#ffcc00;
}
*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;
}
body{
  background:var(--light);
  color:#222;
  line-height:1.6;
}
header{
  background:#fff;
  box-shadow:0 2px 8px rgba(0,0,0,.05);
  padding:10px 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
header img{
  height:40px;
}
nav a{
  margin-left:20px;
  color:var(--secondary);
  font-weight:bold;
  text-decoration:none;
}
.hero{
  background:linear-gradient(rgba(0,51,102,.85),rgba(0,51,102,.85)),url('hero-bg.jpg') center/cover no-repeat;
  color:#fff;
  padding:80px 20px;
  text-align:center;
}
.hero h1{
  font-size:2.4em;
  margin-bottom:15px;
}
.hero p{
  font-size:1.15em;
  margin-bottom:25px;
}
.btn{
  background:var(--accent);
  color:#003366;
  padding:14px 32px;
  border:none;
  border-radius:4px;
  font-weight:bold;
  cursor:pointer;
  font-size:1em;
}
.btn:hover{
  background:#ffd633;
}
.section{
  max-width:980px;
  margin:50px auto;
  padding:0 15px;
}
.section h2{
  text-align:center;
  margin-bottom:25px;
  color:var(--primary);
}
.section ul{
  list-style:disc inside;
  margin-left:20px;
  line-height:1.8;
}
.cards{
  display:flex;
  gap:25px;
  flex-wrap:wrap;
}
.card{
  flex:1 1 280px;
  background:#fff;
  border:1px solid #e0e0e0;
  border-top:4px solid var(--secondary);
  padding:25px;
  text-align:center;
  border-radius:4px;
  box-shadow:0 2px 6px rgba(0,0,0,.05);
}
.card img{
  width:70px;
  height:70px;
  border-radius:50%;
  object-fit:cover;
  margin-bottom:10px;
}
footer{
  background:var(--primary);
  color:#fff;
  text-align:center;
  padding:20px;
  font-size:.8em;
}
footer a{
  color:#fff;
}
.wa{
  position:fixed;
  bottom:20px;
  right:20px;
  background:#25D366;
  color:#fff;
  padding:12px 16px;
  border-radius:50px;
  font-weight:bold;
  text-decoration:none;
  box-shadow:0 4px 10px rgba(0,0,0,.25);
  display:flex;
  align-items:center;
  gap:8px;
}
.wa img{
  width:24px;
  height:24px;
}
@media(max-width:600px){
  header{
    flex-direction:column;
    text-align:center;
  }
  nav a{
    display:block;
    margin:5px 0;
  }
}