.price-calculator {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.price-calculator label {
    font-size: 16px;
    font-weight: bold;
    color: #333;
}

.price-calculator select,
.price-calculator input {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: border 0.3s ease-in-out;
    outline: none;
    background: #f9f9f9;
}

.price-calculator input:focus,
.price-calculator select:focus {
    border-color: #0073e6;
}

.price-calculator h3 {
    font-size: 22px;
    font-weight: bold;
    color: #0073e6;
    text-align: center;
    padding: 10px 0;
}