<div class="portfolio">
  <div class="portfolio-grid">

    <button class="project-thumb active"
      data-project="0" aria-pressed="true">
      <img src="IMAGE_URL_1" alt="Project one">
      <span>Project One</span>
    </button>

    <button class="project-thumb"
      data-project="1" aria-pressed="false">
      <img src="IMAGE_URL_2" alt="Project two">
      <span>Project Two</span>
    </button>

    <button class="project-thumb"
      data-project="2" aria-pressed="false">
      <img src="IMAGE_URL_3" alt="Project three">
      <span>Project Three</span>
    </button>

    <button class="project-thumb"
      data-project="3" aria-pressed="false">
      <img src="IMAGE_URL_4" alt="Project four">
      <span>Project Four</span>
    </button>

  </div>

  <div class="project-detail" aria-live="polite">
    <img id="detail-image" src="IMAGE_URL_1"
      alt="Selected project">

    <div class="detail-copy">
      <p class="project-kicker" id="detail-year">2021</p>
      <h2 id="detail-title">Project One</h2>
      <p id="detail-description">
        A description of this project goes here.
        Include the client, year, your role, and
        a little about the work.
      </p>
    </div>
  </div>
</div>

<style>
.portfolio {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 42px;
  width: 100%;
  align-items: start;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.project-thumb {
  display: block;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
  opacity: .65;
  transition: opacity .2s ease;
  font: inherit;
}

.project-thumb:hover,
.project-thumb.active {
  opacity: 1;
}

.project-thumb img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.project-thumb span {
  display: block;
  padding-top: 8px;
  font-size: 13px;
}

.project-thumb.active img {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}

.project-detail {
  position: sticky;
  top: 30px;
}

.project-detail > img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.detail-copy {
  padding-top: 20px;
}

.project-kicker {
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  opacity: .65;
}

.detail-copy h2 {
  margin: 8px 0 12px;
  font-size: clamp(23px, 3vw, 34px);
}

.detail-copy p {
  line-height: 1.65;
}

@media (max-width: 700px) {
  .portfolio {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .project-detail {
    position: static;
    grid-row: 1;
  }

  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
</style>

<script>
(function () {
  const projects = [
    {
      title: "Project One",
      year: "2021 · Client Name",
      description: "Describe the project, its purpose, your creative role, and the finished work.",
      image: "IMAGE_URL_1"
    },
    {
      title: "Project Two",
      year: "2022 · Client Name",
      description: "Describe the second project here.",
      image: "IMAGE_URL_2"
    },
    {
      title: "Project Three",
      year: "2023 · Client Name",
      description: "Describe the third project here.",
      image: "IMAGE_URL_3"
    },
    {
      title: "Project Four",
      year: "2024 · Personal Work",
      description: "Describe the fourth project here.",
      image: "IMAGE_URL_4"
    }
  ];

  const container = document.querySelector(".portfolio");
  if (!container) return;

  const buttons = container.querySelectorAll(".project-thumb");
  const detailImage = container.querySelector("#detail-image");
  const detailTitle = container.querySelector("#detail-title");
  const detailYear = container.querySelector("#detail-year");
  const detailDescription = container.querySelector("#detail-description");

  buttons.forEach(function (button) {
    button.addEventListener("click", function () {
      const index = Number(button.dataset.project);
      const project = projects[index];

      if (!project) return;

      buttons.forEach(function (item) {
        const selected = item === button;
        item.classList.toggle("active", selected);
        item.setAttribute("aria-pressed", String(selected));
      });

      detailImage.src = project.image;
      detailImage.alt = project.title;
      detailTitle.textContent = project.title;
      detailYear.textContent = project.year;
      detailDescription.textContent = project.description;
    });
  });
})();
</script>