body {
    background-color: white;
    padding: 0;
    height: auto;
    width: 100%;
}

.calculator {
    background-color: WhiteSmoke;
    padding: 10px;
    border-radius: 10px;
    width: 100%;
    max-width: 500px;
    margin: auto;
}

h1 {
    line-height: 1.5;
    margin-bottom: 0px !important;
    margin-top: 0px !important;
    font-size: 20px !important;
    text-align: left;
}

h2 {
    line-height: 1.5;
    text-align: center;
}

h3, h4, h5 {
margin-bottom: 5px !important;
    line-height: 1.5;
    text-align: left;
}

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

label {
    font-size: larger;
    display: block;
    margin-bottom: 5px;
    color: inherit;
}

input {
flex: 5;
    width: 100%;
    padding: 10px;
    border: 1px solid darkgray !important;
    border-radius: 5px;
}
 select {

    flex: 2;

    width: 100%;

    padding: 10px;

    border: 1px solid darkgray !important;

    border-radius: 5px;

    background-image: url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="10" height="10" viewBox="0 0 10 10"%3E%3Cpath fill="none" stroke="%23333333" stroke-width="2" d="M1 3l4 4 4-4" /%3E%3C/svg%3E');

    background-repeat: no-repeat;

    background-position: right 10px center;

    background-size: 10px;

}

button {
    width: 100%;
    padding: 12px;
    background-color: #4CAF50;
    color: white;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #45a049;
}

.result {
    padding: 10px;
    border: 1px solid darkgray !important;
    text-align: left;
    margin-top: 15px;
    border-radius: 5px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    border: 1px solid darkgray !important;
}

th, td {
    padding: 8px;
    text-align: center;
}

th {
    background-color: #f2f2f2;
}

.clear-btn {
    margin-left: 10px;
    background-color: #f44336;
    color: white;
}

.clear-btn:hover {
    background-color: #e53935;
}

 .row-button {
display: flex; 
   justify-content: space-between; 
   width: 100%;
 margin-top: 15px;
   }