.age-calculator {
    max-width: 400px;
    margin: 20px auto;
    padding: 20px;
    border: 2px solid #0073aa;
    border-radius: 12px;
    background: #f9f9f9;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.age-calculator label {
    font-weight: bold;
    display: block;
    margin-bottom: 10px;
    font-size: 16px;
}

#dob {
    width: 100%;
    padding: 10px;
    font-size: 14px;
    margin-bottom: 10px;
    border-radius: 8px;
    border: 1px solid #ccc;
}

#calculateAge {
    background: #0073aa;
    color: #fff;
    border: none;
    padding: 10px 20px;
    font-size: 15px;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s;
}

#calculateAge:hover {
    background: #005f8d;
}

#ageResult {
    margin-top: 15px;
    font-size: 16px;
    font-weight: bold;
    color: #333;
}