body{font-family:Arial,Helvetica,sans-serif;margin:0;background:#0f172a;color:#e5e7eb}
header{padding:30px;text-align:center;background:#111827}
h1{margin:0}
.container{max-width:1100px;margin:auto;padding:20px}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-top:30px}
.tool-card{background:#1f2937;padding:20px;border-radius:10px;text-decoration:none;color:#fff}
.tool-card:hover{background:#374151}
textarea{width:100%;min-height:200px;margin:10px 0;padding:10px;border-radius:6px;border:none}
button{padding:10px 20px;border:none;border-radius:6px;background:#6366f1;color:#fff;cursor:pointer}
.ad{background:#111827;border:1px dashed #555;text-align:center;padding:20px;margin:20px 0}
footer{text-align:center;padding:30px;color:#9ca3af}