#theme-toggle {
    position: fixed !important;
    top: 20px !important;
    right: 20px;
    background: #0073aa !important;
    color: #fff !important;
    border: none !important;
    outline: none !important;
    border-radius: 50% !important;
    padding: 12px !important;
    cursor: pointer !important;
    font-size: 20px !important;
    z-index: 999999 !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3) !important;
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
#theme-toggle:focus {
    outline: none !important;
    box-shadow: none !important;
}
#theme-toggle:hover {
    opacity: 0.9;
    transform: scale(1.05);
}
#theme-toggle::after {
    content: 'Claro / Escuro';
    position: absolute;
    bottom: -22px;
    right: 0;
    left: 0;
    margin: 0 auto;
    width: max-content;
    font-size: 11px;
    color: #fff;
    background: rgba(0, 0, 0, 0.6);
    padding: 2px 6px;
    border-radius: 6px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
#theme-toggle:hover::after {
    opacity: 1;
}