.light {
    color: #333;
}

.dark {
    color: #fff;
}

.theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    z-index: 1000;
}

.light .theme-toggle {
    background-color: #fff;
    color: #ffcc00;
}

.dark .theme-toggle {
    background-color: #333;
    color: #fff;
}