#frete-calculator {
    max-width: 400px;
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

h2 {
    text-align: center;
    color: #333;
}

label {
    font-weight: bold;
}

input {
    width: 100%;
    padding: 8px;
    margin: 5px 0 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.btn {
    display: inline-block;
    width: 48%;
    padding: 10px;
    margin-top: 10px;
    text-align: center;
    border: none;
    cursor: pointer;
    border-radius: 5px;
}

.btn.primary {
    background: #28a745;
    color: white;
}

.btn:hover {
    opacity: 0.8;
}

#resultado {
    margin-top: 15px;
    font-size: 16px;
    font-weight: bold;
}