#gestational-calculator {
    max-width: 680px;
    margin: 40px auto 50px;
    background-color: #ffffff;
    border-radius: 28px;
    padding: 45px;
    box-shadow: 0 30px 80px rgba(41, 50, 65, 0.08);
    text-align: left;
}

#gestational-calculator form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 25px;
}

#gestational-calculator .calculator-field label {
    font-weight: 600;
    color: #2a303b;
    display: block;
    margin-bottom: 8px;
}

#gestational-calculator input {
    width: 100%;
    padding: 14px 18px;
    border-radius: 14px;
    border: 1px solid #d8dfe8;
    background-color: #f7f9fc;
    font-size: 16px;
    color: #2a303b;
}

#gestational-calculator input:focus {
    outline: none;
    border-color: #26a69a;
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(38, 166, 154, 0.15);
}

#gestational-calculator button {
    align-self: flex-start;
    padding-left: 35px;
    padding-right: 35px;
}

#gestational-calculator-error {
    color: #c0392b;
    font-weight: 600;
    margin: 5px 0 0;
    min-height: 20px;
}

#gestational-calculator-result {
    background-color: #f1f7f5;
    border-radius: 18px;
    padding: 20px 24px;
    font-size: 17px;
    color: #39424e;
    line-height: 1.5;
}

#gestational-calculator-result strong {
    display: block;
    font-size: 20px;
    color: #1f8a70;
    margin-bottom: 6px;
}

#gestational-calculator-result span {
    display: block;
    margin-top: 6px;
}

@media (max-width: 767px) {
    #gestational-calculator {
        padding: 30px 25px;
        margin: 30px auto;
    }

    #gestational-calculator button {
        width: 100%;
        text-align: center;
        justify-content: center;
    }
}