/* style.css */
body {
    background: #f8f9fa; /* cinza muito claro */
    font: normal 16pt 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header {
    background-color: #343a40;
    color: #ffffff;
    text-align: center;
    padding: 20px 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

header h1 {
    margin: 0;
    font-size: 2.2rem;
}

section {
    background: #ffffff;
    border-radius: 15px;
    padding: 25px;
    width: 90%;
    max-width: 500px;
    margin: 30px auto;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    animation: fadeIn 0.6s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

#dados p {
    margin: 15px 0;
    font-size: 1rem;
}

input[type="number"] {
    padding: 10px;
    font-size: 1rem;
    width: calc(100% - 20px);
    border: 1px solid #ccc;
    border-radius: 8px;
    outline: none;
    transition: border-color 0.3s;
}

input[type="number"]:focus {
    border-color: #007bff;
}

input[type="button"] {
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

input[type="button"]:hover {
    background-color: #0056b3;
}

#result {
    margin-top: 20px;
    font-size: 1.1rem;
    color: #333;
    word-break: break-word;
}

footer {
    color: #6c757d;
    text-align: center;
    font-style: italic;
    padding: 20px 0;
    font-size: 0.9rem;
}

@media (max-width: 600px) {
    section {
        padding: 20px;
    }

    header h1 {
        font-size: 1.8rem;
    }

    input[type="button"] {
        width: 100%;
    }
}