body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #f5f5f5;
  color: #333;
}
header {
  background-color: #4CAF50;
  color: #fff;
  padding: 20px;
  text-align: center;
}
nav {
  background: #ffffff;
  padding: 10px;
  text-align: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
nav a {
  margin: 0 15px;
  text-decoration: none;
  color: #3e7d41;
  font-weight: bold;
}
nav a:hover {
  color: #45a049;
}
main {
  padding: 20px;
  max-width: 800px;
  margin: 20px auto;
  background: #fff;
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
footer {
  text-align: center;
  padding: 15px;
  background: #eee;
  color: #666;
}
.tool-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  justify-items: center;
}
.tool-item {
  width: 200px;
  text-align: center;
  background-color: #fff;
  border-radius: 5px;
  color: #333;
  padding: 20px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  transition: background-color 0.3s, transform 0.2s;
}
.tool-item:hover {
  background-color: #f0f0f0;
  transform: translateY(-3px);
}
.tool-item a {
  text-decoration: none;
  color: #333;
}
.tool-title {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 10px;
}
.tool-description {
  font-size: 12px;
  color: #666;
  margin-top: 5px;
}
.contact-info {
  font-size: 16px;
  line-height: 1.6;
}
button {
  background-color: #4CAF50;
  color: white;
  border: none;
  padding: 10px 20px;
  margin: 10px 0;
  cursor: pointer;
  border-radius: 5px;
  transition: background-color 0.3s;
}
button:hover {
  background-color: #45a049;
}
input, select, textarea {
  width: 100%;
  padding: 10px;
  margin: 10px 0;
  border: 1px solid #ccc;
  border-radius: 5px;
}