Embed

<div style="max-width:1050px;margin:0 auto;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial; padding:14px;">
  <h2 style="margin:0 0 6px; font-size:26px;">Dive Knots — Step-by-Step</h2>
  <p style="margin:0 0 14px; color:#444; line-height:1.35;">
    Tap the step buttons to follow each knot. Use <b>Auto Play</b> for a quick demo.
  </p>

  <div class="knotGrid" style="display:flex; gap:14px; flex-wrap:wrap;"></div>
</div>

<script>
(function () {
  const KNOTS = [
    {
      id: "bowline",
      title: "Bowline",
      badge: "S&R",
      subtitle: "6-step photo guide",
      steps: [
        { img: "https://iili.io/faIyvae.png", text: "Follow the image." },
        { img: "https://iili.io/faIy88u.png", text: "Follow the image." },
        { img: "https://iili.io/faIykF9.png", text: "Follow the image." },
        { img: "https://iili.io/faIyO67.png", text: "Follow the image." },
        { img: "https://iili.io/faIyguj.png", text: "Follow the image." },
        { img: "https://iili.io/faIyrwx.png", text: "Follow the image." }
      ]
    },
    {
      id: "twohalfhitches",
      title: "Two Half-Hitches",
      badge: "S&R",
      subtitle: "6-step photo guide",
      steps: [
        { img: "https://iili.io/fa5uMdP.png", text: "Follow the image." },
        { img: "https://iili.io/fa5uV71.png", text: "Follow the image." },
        { img: "https://iili.io/fa5uaXj.png", text: "Follow the image." },
        { img: "https://iili.io/fa5u5mu.png", text: "Follow the image." },
        { img: "https://iili.io/fa5uYzb.png", text: "Follow the image." },
        { img: "https://iili.io/fa5uA79.png", text: "Follow the image." }
      ]
    },
    {
      id: "sheetbend",
      title: "Sheet Bend",
      badge: "S&R",
      subtitle: "6-step photo guide",
      steps: [
        { img: "https://iili.io/fa7WJK7.png", text: "Follow the image." },
        { img: "https://iili.io/fa7W9PS.png", text: "Follow the image." },
        { img: "https://iili.io/fa7VDNf.png", text: "Follow the image." },
        { img: "https://iili.io/fa7VZ9s.png", text: "Follow the image." },
        { img: "https://iili.io/fa7WoiB.png", text: "Follow the image." },
        { img: "https://iili.io/fa7WTUF.png", text: "Follow the image." }
      ]
    }
  ];

  const grid = document.querySelector(".knotGrid");

  function renderCard(knot) {
    const card = document.createElement("div");
    card.style.cssText =
      "flex:1 1 320px; min-width:280px; background:#fff; border:1px solid #e6e6e6; border-radius:16px; padding:14px;" +
      "box-shadow:0 6px 18px rgba(0,0,0,.06);";

    card.innerHTML = `
      <div style="display:flex; align-items:flex-start; justify-content:space-between; gap:10px;">
        <div>
          <div style="font-weight:800; font-size:16px;">${knot.title}</div>
          <div style="color:#555; font-size:13px; margin-top:2px;">${knot.subtitle}</div>
        </div>
        <span style="font-size:12px; padding:4px 8px; background:#f2f7ff; border:1px solid #d6e6ff; border-radius:999px; color:#1f5fbf;">${knot.badge}</span>
      </div>

      <div style="margin-top:10px; background:#f7f7f7; border-radius:12px; padding:10px; border:1px solid #eee;">
        <img class="stepImg"
             src=""
             alt=""
             loading="lazy"
             decoding="async"
             referrerpolicy="no-referrer"
             style="width:100%; height:300px; object-fit:contain; display:block; border-radius:10px; background:#fff;">
      </div>

      <div style="margin-top:10px;">
        <div class="stepText" style="font-size:14px; line-height:1.35; color:#222;"></div>

        <div class="stepBtns" style="display:flex; flex-wrap:wrap; gap:8px; margin-top:10px;"></div>

        <div style="display:flex; gap:10px; margin-top:10px;">
          <button class="autoBtn" style="flex:1; cursor:pointer; border:none; border-radius:12px; padding:10px 12px; font-weight:800; background:#0b3d91; color:#fff;">
            Auto Play
          </button>
          <button class="resetBtn" style="cursor:pointer; border:1px solid #ddd; border-radius:12px; padding:10px 12px; font-weight:800; background:#fff;">
            Reset
          </button>
        </div>
      </div>
    `;

    const imgEl = card.querySelector(".stepImg");
    const stepTextEl = card.querySelector(".stepText");
    const stepBtns = card.querySelector(".stepBtns");
    const autoBtn = card.querySelector(".autoBtn");
    const resetBtn = card.querySelector(".resetBtn");

    let step = 0;
    let timer = null;

    function setStep(i) {
      step = i;
      const s = knot.steps[step];
      imgEl.src = s.img;
      imgEl.alt = `${knot.title} step ${step + 1}`;
      stepTextEl.innerHTML = `<b>Step ${step + 1}:</b> ${s.text}`;

      [...stepBtns.children].forEach((b, idx) => {
        if (idx === step) {
          b.style.background = "#0b3d91";
          b.style.color = "#fff";
          b.style.borderColor = "#0b3d91";
        } else {
          b.style.background = "#fff";
          b.style.color = "#111";
          b.style.borderColor = "#ddd";
        }
      });
    }

    function stopAuto() {
      if (timer) clearInterval(timer);
      timer = null;
      autoBtn.textContent = "Auto Play";
    }

    knot.steps.forEach((_, idx) => {
      const b = document.createElement("button");
      b.type = "button";
      b.textContent = idx + 1;
      b.style.cssText =
        "cursor:pointer; border:1px solid #ddd; background:#fff; padding:8px 10px; border-radius:12px; font-weight:800; min-width:42px;";
      b.addEventListener("click", () => { stopAuto(); setStep(idx); });
      stepBtns.appendChild(b);
    });

    autoBtn.addEventListener("click", () => {
      if (timer) { stopAuto(); return; }
      autoBtn.textContent = "Stop";
      timer = setInterval(() => setStep((step + 1) % knot.steps.length), 1400);
    });

    resetBtn.addEventListener("click", () => { stopAuto(); setStep(0); });

    // Preload images for smoother switching
    knot.steps.forEach(s => { const im = new Image(); im.src = s.img; });

    setStep(0);
    setTimeout(() => setStep(step), 50); // builder safety tick

    return card;
  }

  KNOTS.forEach(k => grid.appendChild(renderCard(k)));
})();
</script>


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