body{font-family:Arial;margin:0;background:#f5f5f5;}
.header{display:flex;justify-content:space-between;padding:10px;background:#fff;}
.logo{height:40px;}
.btn-green{background:#2ecc71;color:#fff;padding:10px;text-decoration:none;}
.btn-red{background:#8b0000;color:#fff;padding:10px;text-decoration:none;}
.hero{text-align:center;padding:40px;}
.regions{text-align:center;padding:30px;}
.grid button{margin:10px;padding:15px;}
.portfolio img{width:100%;max-width:400px;margin:10px;}