body {
    font-family: Arial, sans-serif;
    margin: 30px;
    background-color: #f7f7f7;
    color: #333;
}

h2, h3 {
    text-align: center;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background-color: #fff;
}
table th, table td {
    border: 1px solid #ccc;
    padding: 10px;
    text-align: center;
}
table th {
    background-color: #4CAF50;
    color: white;
}

input[type="submit"] {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 25px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

input[type="submit"]:hover {
    background-color: #45a049;
}

.grafica {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    height: 350px;
    border-bottom: 2px solid #333;
    margin-top: 30px;
}

.barra {
    text-align: center;
    margin: 0 20px;
    transition: transform 0.3s ease;
}

.barra div {
    width: 60px;
    margin-top: 10px;
    transition: height 0.3s ease;
    border-radius: 4px 4px 0 0;
}

.barra:hover {
    transform: scale(1.05);
}

.barra span {
    display: block;
    margin-top: 8px;
    font-weight: bold;
}