body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 600px;
    font-family: Arial, sans-serif;
    background-color: #1e1e1e;
    box-sizing: border-box;
    color: #ffffff;
}

.heading {
    display: flex;
    justify-content: center;
    align-items: center;
    color: #76c7c0;
}

.age-calculator {
    width: 300px;
    display: flex;
    flex-direction: column;
    border-radius: 10px;
    background-color: #2e2e2e;
    box-shadow: 0.4rem 0.4rem 5px #5aafa9;
}

.age-form {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    margin: 1rem;
}

.age-form label {
    color: #ffffff;
}

.age-form input {
    border-style: none;
    border-radius: 2px;
    padding: 0.4rem;
    border: 1px solid #444;
    background-color: #3e3e3e;
    color: #ffffff;
}

.button {
    border-style: none;
    border-radius: 2px;
    margin-top: 0.3rem;
    padding: 0.4rem;
    background-color: #76c7c0;
    color: #1e1e1e;
}

.button:hover {
    background-color: #5aafa9;
}

.result {
    color: #76c7c0;
    text-align: center;
    margin-top: 1rem;
}

@media (max-width: 768px) {
    .age-calculator {
        width: 80%;
    }

    .age-form {
        margin: 0.5rem;
    }

    .button {
        padding: 0.6rem;
    }
}

@media (max-width: 480px) {
    .age-calculator {
        width: 95%;
    }

    .age-form {
        margin: 0.3rem;
        gap: 0.5rem;
    }

    .button {
        padding: 0.5rem;
    }

    .heading {
        font-size: 1.5rem;
    }

    .result {
        font-size: 1rem;
    }
}