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

body{
  background:#f5f5f5;
  color:#222;
}

nav{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:20px 10%;
  background:#111;
  color:white;
}

nav ul{
  display:flex;
  list-style:none;
  gap:20px;
}

nav a{
  color:white;
  text-decoration:none;
}

.hero{
  text-align:center;
  padding:100px 20px;
}

.hero h1{
  font-size:50px;
}

.hero h2{
  margin:15px 0;
}

.hero p{
  width:60%;
  margin:auto;
  line-height:1.6;
}

button{
  margin-top:30px;
  padding:12px 25px;
  border:none;
  background:#007bff;
  color:white;
  cursor:pointer;
  border-radius:6px;
}

section{
  padding:70px 10%;
}

.cards{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:20px;
  margin-top:30px;
}

.card{
  background:white;
  padding:25px;
  border-radius:10px;
  box-shadow:0 5px 15px rgba(0,0,0,.1);
}

footer{
  text-align:center;
  padding:25px;
  background:#111;
  color:white;
  margin-top:50px;
}

@media(max-width:768px){

.hero p{
  width:100%;
}

nav{
  flex-direction:column;
  gap:20px;
}

nav ul{
  flex-wrap:wrap;
  justify-content:center;
}

}