<main>
  <h1>Frequent Accordion Questions</h1>
  <section id="accordion" class="accordion">
    <div class="accordion-container">
      <div class="accordion-item">
        <button class="accordion-trigger" id="accordion-trigger-1" aria-expanded="false" aria-controls="accordion-content-1">
          <span class="accordion-title">
            How does an accordion work?
          </span>
          <span class="accordion-icon">
            &plus;
          </span>
        </button>
        <div class="accordion-content" id="accordion-content-1" role="region" aria-labelledby="accordion-trigger-1">
          <p>It toggles collapsible content based on user interaction.</p>
        </div>
      </div>

      <div class="accordion-item">
        <button class="accordion-trigger" id="accordion-trigger-2" aria-expanded="false" aria-controls="accordion-content-2">
          <span class="accordion-title">
            Why should I use an accordion?
          </span>
          <span class="accordion-icon">
            &plus;
          </span>
        </button>
        <div class="accordion-content" id="accordion-content-2" role="region" aria-labelledby="accordion-trigger-3">
          <p>It helps improves user exerience by providing condensed information in an easy-to-read manner.</p>
        </div>
      </div>
      <div class="accordion-item">
        <button class="accordion-trigger" id="accordion-trigger-3" aria-expanded="false" aria-controls="accordion-content-3">
          <span class="accordion-title">
            Is an accordion a type of animal?
          </span>
          <span class="accordion-icon">
            &plus;
          </span>
        </button>
        <div class="accordion-content" id="accordion-content-3" role="region" aria-labelledby="accordion-trigger-3">
          <p>No, you're thinking of an armadillo.</p>
        </div>
      </div>
    </div>
  </section>
</main>

<footer>
  Pen by <a href="https://www.jemimaabu.com" target="_blank" rel="noopener">Jemima Abu</a> <span class="heart">&hearts;</span>
</footer>

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap');

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
}

main {
  min-height: 100vh;    
}

h1 {
  text-align: center;
  margin-top: 72px;
  margin-bottom: 48px;
}

.accordion {
  margin-bottom: 24px;
}

.accordion-container {
  width: 90%;
  max-width: 1240px;
  margin: 0 auto;
  border: 3px solid #e0e0e0;
  border-radius: 24px;
  overflow: hidden;
}

.accordion-item {
  width: 100%;
}

.accordion-trigger {
  width: 100%;
  display: block;
  background-color: rgb(250, 250, 250);
  color: rgb(0, 0, 0);
  padding: 24px;
  font-size: 20px;
  font-weight: 500;
  font-family: 'Inter', sans-serif;
  text-align: left;
  border: none;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  cursor: pointer;
}

.accordion-icon {
  transition: transform 0.5s;
}

.accordion-item.is-active .accordion-icon {
  transform: rotate(45deg);
}

.accordion-item:not(:first-of-type) .accordion-trigger {
  border-top: 3px solid #eaeaea;
}

.accordion-content {
  height: 0;
  overflow: hidden;
  transition: 0.5s;
}

.accordion-content p {
  margin: 24px;
}

footer {
  bottom: 0;
  width: 100%;
  padding: 1rem;
  text-align: center;
  background-color: #ffdfb9;
}

footer a {
  color: inherit;
  text-decoration: none;
}

footer .heart {
  color: #dc143c;
}

const accordionItems = document.querySelectorAll(".accordion-item");

const toggleAccordion = (index) => {
  resetAccordions(index);

  const currentAccordion = accordionItems[index];
  currentAccordion.classList.toggle("is-active");

  const accordionContent = currentAccordion.querySelector(".accordion-content");
  const accordionTrigger = currentAccordion.querySelector(".accordion-trigger");

  if (currentAccordion.classList.contains("is-active")) {
    accordionContent.style.height = `${accordionContent.scrollHeight}px`;
    accordionTrigger.setAttribute("aria-expanded", "true");
  } else {
    accordionContent.style.height = 0;
    accordionTrigger.setAttribute("aria-expanded", "false");
  }
};

const resetAccordions = (targetIndex) => {
  accordionItems.forEach((accordion, index) => {
    const accordionContent = accordion.querySelector(".accordion-content");
    const accordionTrigger = accordion.querySelector(".accordion-trigger");

    if (targetIndex != index) {
      accordion.classList.remove("is-active");
      accordionContent.style.height = 0;
      accordionTrigger.setAttribute("aria-expanded", "false");
    }
  });
};

window.addEventListener("load", () => {
  accordionItems.forEach((accordion, index) => {
    const accordionTrigger = accordion.querySelector(".accordion-trigger");
    accordionTrigger.addEventListener("click", () => toggleAccordion(index));
  });
});