body{font-family:Arial,Helvetica,sans-serif;margin:0;background:#f4f6f8}
header{background:#e53935;color:#fff;padding:15px}
.header-content{display:flex;justify-content:space-between;align-items:center}
nav ul{list-style:none;display:flex;gap:15px;margin:0;padding:0}
nav a{color:#fff;text-decoration:none;font-weight:bold}
.hero{text-align:center;padding:60px;background:white}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;padding:40px}
.tool-card{background:white;padding:20px;border-radius:8px;text-align:center;text-decoration:none;color:black;box-shadow:0 0 10px rgba(0,0,0,0.1)}
.tool-card:hover{background:#e53935;color:white}
.ad-container{text-align:center;margin:30px}
footer{background:#222;color:white;padding:30px;margin-top:40px}