body{font-family:Arial,sans-serif;margin:0;color:#333;line-height:1.6}
header{background:#2E8B57;color:white;padding:20px}
nav a{color:white;margin-right:20px;text-decoration:none;font-weight:bold}
.container{max-width:1100px;margin:auto;padding:30px}
.hero{text-align:center;padding:50px 20px}
.hero img{max-width:250px}
.card{border:1px solid #ddd;border-radius:8px;padding:20px;margin:10px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.btn{background:#2E8B57;color:white;padding:12px 20px;text-decoration:none;border-radius:4px}
footer{background:#f4f4f4;padding:20px;text-align:center}