body { font-family: Arial; max-width: 760px; margin:auto; padding:20px; }
textarea, select { width:100%; padding:10px; margin-top:10px; }
button { padding:10px 20px; margin-top:10px; cursor:pointer; }
pre { background:#f4f4f4; padding:15px; white-space:pre-wrap; }
.limit { color:#555; }
.header {
  text-align: center;
  margin-bottom: 30px;
}

.tools {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.tool-card {
  border: 1px solid #ddd;
  padding: 20px;
  border-radius: 6px;
  background: #fafafa;
}

.tool-card h2 {
  margin-top: 0;
}

.btn {
  display: inline-block;
  margin-top: 10px;
  padding: 8px 16px;
  background: #333;
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
}

.btn:hover {
  background: #000;
}

.footer {
  margin-top: 40px;
  font-size: 14px;
  color: #666;
  text-align: center;
}

.usage {
  text-align: center;
  margin-bottom: 20px;
}