body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    background-color: #f8f9fa;
    margin: 0;
    padding: 20px;
}

h1, h2 {
    text-align: center;
    color: #343a40;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background-color: #ffffff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

label {
    font-weight: bold;
    margin-bottom: 5px;
}

select, input[type="number"], button, button[type="submit"] {
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    transition: all 0.3s ease;
}

select, input[type="number"] {
    background-color: #f8f9fa;
}

select:focus, input[type="number"]:focus {
    border-color: #80bdff;
    outline: none;
    box-shadow: 0 0 5px rgba(0, 123, 255, 0.25);
}

button, button[type="submit"] {
    background: linear-gradient(45deg, #007bff, #0056b3);
    color: #ffffff;
    border: none;
    cursor: pointer;
    padding: 10px 20px;
    font-size: 16px;
    border-radius: 4px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

button:hover, button[type="submit"]:hover {
    background: linear-gradient(45deg, #0056b3, #003f7f);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.footer {
    text-align: center;
    margin-top: 20px;
    color: #6c757d;
}

/* Table Styles */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    background-color: #ffffff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

table, th, td {
    border: 1px solid #dee2e6;
}

th, td {
    padding: 12px;
    text-align: center;
}

th {
    background-color: #343a40;
    color: #ffffff;
}

tr:nth-child(even) {
    background-color: #f2f2f2;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    table, th, td {
        font-size: 14px;
        padding: 8px;
    }

    form {
        gap: 10px;
    }

    select, input[type="number"], button, button[type="submit"] {
        font-size: 14px;
        padding: 8px;
    }
}