.age-calculator-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    flex-grow: 1;
}

.age-calculator {
    background: #1e1e1e;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.age-calculator h2 {
    color: #ffffff;
    margin-bottom: 20px;
}

.input-group {
    margin-bottom: 20px;
    text-align: left;
}

.input-group label {
    display: block;
    color: #e0e0e0;
    margin-bottom: 5px;
}

.input-group input {
    width: 100%;
    padding: 15px;
    border: 1px solid #555;
    border-radius: 10px;
    box-sizing: border-box;
    background: #2c2c2c;
    color: #e0e0e0;
}

#calculate-btn {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 10px;
    background: #6a5acd;
    color: white;
    font-size: 1.2em;
    cursor: pointer;
    transition: background 0.3s;
}

#calculate-btn:hover {
    background: #5a4acd;
}

#result {
    margin-top: 20px;
    padding: 20px;
    border-radius: 10px;
    background: #2c2c2c;
    color: #e0e0e0;
}

/* Light Theme */
body.light-mode .age-calculator {
    background: #ffffff;
    border: 1px solid #ddd;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

body.light-mode .age-calculator h2 {
    color: #333333;
}

body.light-mode .input-group label {
    color: #333333;
}

body.light-mode .input-group input {
    background: #f0f0f0;
    color: #333333;
    border: 1px solid #ccc;
}

body.light-mode #result {
    background: #f0f0f0;
    color: #333;
}