body {
  font-family: Arial, sans-serif;
  background: #f5f5f5;
  color: #333;
  padding: 20px;
}

h1 {
  text-align: center;
  margin-bottom: 30px;
}

.utility {
  max-width: 700px;
  margin: auto;
  padding: 3rem;
  border-radius: 10px;
  border: 1px solid green;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.utility:hover {
  box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

label {
  display: block;
  margin-top: 1.5rem;
  font-weight: bold;
}

input {
  padding: 0.5rem;
  margin: 1rem 0;
  font-size: 1rem;
}

input {
  flex: 1;  
  width: 90%;
  max-width: 520px;
  padding: .75rem 1rem;
  font-size: 1rem;
  border: 1px solid #c8e6c9;
  border-radius: 8px;
  outline: none;
}

input:focus {
  border-color: #2e7d32;
  box-shadow: 0 0 0 3px rgba(46,125,50,.15);
}


.buttons {
  margin-top: 1.5rem;
  width: 100%;
  display: flex;
  justify-content: space-between;
}

button {
  flex: 1;
  margin: 0 5px;
  padding: 10px;
  border: none;
  border-radius: 6px;
  border: 1px solid #1b5e20; 
  font-weight: bold;
  transition: all 0.3s ease;
  font-weight: bold;
}

button:hover {
  background: #1b5e20; 
  transform: translateY(-2px);
  color: white;
}

button.active {
  background: #2e7d32 !important; 
  color: white;

}


#result  {
  margin-top: 1rem;
  padding: 1rem;
  background: #f7faf7;
  border: 1px solid #e0f2e0;
  border-radius: 10px;
  line-height: 1.6;
  font-size: 1rem;
  word-break: break-word;
}

#result { font-weight: bold; color: #1b5e20; }