body {
    font-family: 'Roboto', Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    /* Clean background */
    background-color: #f7f9fc; 
    padding: 40px 20px;
}

#calculator-suite-container {
    padding: 40px; 
    width: 100%;
    max-width: 500px; 
    background-color: white;
    border-radius: 15px; 
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1); 
    border-top: 8px solid #008080; 
}

h1 {
    color: #333;
    margin-top: 0;
    text-align: center;
    font-size: 2em;
    margin-bottom: 25px;
}

h2 {
    color: #008080;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 8px;
    margin-top: 15px;
    font-size: 1.3em;
}

input[type="date"], 
input[type="datetime-local"], 
input[type="number"], 
select {
    width: 100%;
    padding: 14px 10px; 
    margin-top: 5px;
    margin-bottom: 15px;
    border: 1px solid #ced4da; 
    border-radius: 8px;
    box-sizing: border-box;
    font-size: 1em;
    transition: border-color 0.3s;

    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-color: #fff;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3e%3cpath fill='%236c757d' d='M2 0L0 2h4zm0 5L0 3h4z'/%3e%3c/svg%3e"); 
    background-repeat: no-repeat;
    background-position: right 10px top 50%;
    background-size: 8px;
}

input:focus, select:focus {
    border-color: #008080; 
    box-shadow: 0 0 0 0.2rem rgba(0, 128, 128, 0.25); 
    outline: none;
}

label {
    display: block;
    font-weight: 500;
    color: #495057;
    margin-top: 10px;
}

button {
    width: 100%;
    padding: 16px; 
    margin-top: 20px;
    background-color: #FF6347; 
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.2em;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
}

button:hover {
    background-color: #e55338; 
}

/* Result Display */
#final-result {
    font-size: 1.4em;
    font-weight: 600;
    color: #008080; 
    background-color: #e6f7f7; 
    padding: 20px;
    border-radius: 8px;
    border-left: 6px solid #008080;
    margin-top: 25px;
    white-space: pre-wrap;
}