body{
    font-family: 'Roboto', Arial, sans-serif;
    background-color: #222;
    color: #f4f4f4;
    margin: 0;
}

.container{
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    background-color: #333;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

input[type="text"],
select,
input[type=number],
input[type=submit]{
    margin-bottom: 10px;
    width: calc(100% - 16px);
    padding: 10px;
    border: 1px solid #555;
    border-radius: 4px;
    background-color: #444;
    color: #f4f4f4;
    box-sizing: border-box;
}

input[type="text"]::placeholder,
select::placeholder,
input[type=number]::placeholder{
    color: #888;
}

input[type=submit]{
    background-color: #5e8a69;
    color: #fff;
    border: none;
    cursor: pointer;
    padding: 12px 24px;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

input[type=submit]:hover{
    background-color: #4c7655;
}

table{
    width: 100%;
    border-collapse: collapse;
    background-color: #333;
}

th, td{
    border: 1px solid #555;
    padding: 10px;
    text-align: left;
    background-color: #444;
    color: #f4f4f4;
}

th{
    background-color: #5e8a69;
}