.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #e0e0e0;
    color: #333;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    margin: 0 auto;
}

.theme-toggle:hover {
    transform: scale(1.05);
    background-color: #d5d5d5;
}