/* Botão Voltar ao Topo - Estilo completo alinhado com o React */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 50;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: hsl(var(--background));
    color: hsl(var(--primary));
    border: 1px solid hsl(var(--border));
    box-shadow: var(--shadow-elegant);
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    opacity: 0;
    transform: translateY(20px);
}

.scroll-to-top.visible {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.scroll-to-top:hover {
    background: hsl(var(--background) / 0.9);
    box-shadow: var(--shadow-elegant), 0 0 40px hsl(var(--primary) / 0.4);
    transform: scale(1.1);
}

.scroll-to-top svg {
    width: 1.25rem;
    height: 1.25rem;
}

/* Ajustes para mobile */
@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 2.75rem;
        height: 2.75rem;
    }
    
    .scroll-to-top svg {
        width: 1rem;
        height: 1rem;
    }
}