nav{
    background:white;
    padding:15px;
    box-shadow:0 2px 10px rgba(0,0,0,0.1);
}

nav ul{
    list-style:none;
    display:flex;
    justify-content:center;
    gap:25px;
}

nav a{
    text-decoration:none;
    color:#333;
    font-weight:bold;
}

nav a:hover{
    color:#16a34a;
}*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family: Arial, sans-serif;
    background:#f5f7fa;
    color:#333;
}

header{
    background:#0f172a;
    color:white;
    padding:20px;
    text-align:center;
}

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

.hero h1{
    font-size:40px;
    margin-bottom:15px;
}

.hero p{
    font-size:18px;
    color:#666;
}

.btn{
    display:inline-block;
    margin-top:20px;
    padding:12px 25px;
    background:#16a34a;
    color:white;
    text-decoration:none;
    border-radius:8px;
}

.btn:hover{
    background:#15803d;
}