:root{
  --primary:#48C353;
  --accent1:#FFD700;
  --accent2:#1092CF;
  --dark:#333;
}
*{box-sizing:border-box;}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--dark);line-height:1.6;background:#fff;}
header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;padding:10px 20px;background:#fff;border-bottom:3px solid var(--primary);}
.logo img{height:40px;}
nav a{margin:0 10px;text-decoration:none;color:var(--dark);font-weight:bold;}
nav a:hover{color:var(--primary);}
main{padding:20px;max-width:900px;margin:auto;}
h1,h2,h3{color:var(--primary);}
article img{width:100%;height:auto;border-radius:4px;}
footer{background:#f2f2f2;padding:10px 0;text-align:center;font-size:0.9rem;margin-top:40px;}