function boasVindas() {
    alert("Bem-Vindo ao site oficial do IPOK!");
}

const slides = document.querySelectorAll(".slide");
const dots = document.querySelectorAll(".dot");
const nextBtn = document.querySelector(".next");
const prevBtn = document.querySelector(".prev");
const slider = document.getElementById("slider");

let current = 0;
let interval;

function showSlide(index) {
  slides.forEach(slide => slide.classList.remove("active"));
  dots.forEach(dot => dot.classList.remove("active"));

  slides[index].classList.add("active");
  dots[index].classList.add("active");

  current = index;
}

function nextSlide() {
  let index = (current + 1) % slides.length;
  showSlide(index);
}

function prevSlide() {
  let index = (current - 1 + slides.length) % slides.length;
  showSlide(index);
}

function startSlide() {
  interval = setInterval(nextSlide, 4000);
}

function pauseSlide() {
  clearInterval(interval);
}

nextBtn.addEventListener("click", nextSlide);
prevBtn.addEventListener("click", prevSlide);

dots.forEach((dot, index) => {
  dot.addEventListener("click", () => showSlide(index));
});

slider.addEventListener("mouseover", pauseSlide);
slider.addEventListener("mouseout", startSlide);

startSlide();