.container {
  max-width: 750px;
  margin: 0 auto;
}


fieldset {
border: 2px solid black; 
margin-bottom: 10px;
padding-left: 15px;
padding-right: 15px;
}


fieldset legend {
    margin-bottom: 0.3em;
    padding: 0 0.5em;
	font-weight: bold;
}

.form-group {
  margin-bottom: 15px;
}

label {
  display: block;
  margin-bottom: 10px;
  font-weight: bold;
  color: #333;
}

select,
input[type="number"],
input[type="text"] {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 16px;
  color: #333;
  background-color: #fff;
}

select:focus,
input[type="number"]:focus,
input[type="text"]:focus {
  outline: none;
  border-color: #333;
}

.button-group {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

button[type="button"] {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    cursor: pointer;
    border-radius: 5px;
}

button[type="reset"] {
    background-color: #f44336;
    color: white;
    border: none;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 5px;
}

button:hover {
  opacity:0.8;
}

.output {
    background: #d2e1d2 !important;
    border: 1px solid #ccc !important;
}