index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      body {
        display: flex;
        justify-content: center;
        align-items: center;
        height: 100vh;
        margin: 0;
        background-color: #f0f0f0;
      }
      .text {
        font-size: clamp(100px, 40vw, 400px);
        font-weight: bold;
        transition: filter 0.2s ease-in-out;
        padding: 20px;
      }

      button {
        position: absolute;
        top: 20px;
        left: 20px;
      }
    </style>
  </head>
  <body>
    <h1 class="text" id="text">😎</h1>
    <button>Включить гироскоп</button>

    <script>
      const textElement = document.getElementById("text");
      let timeout = null;
      let lastUpdate = Date.now();
      let blurValue = 0;
      window.addEventListener("deviceorientation", function (event) {
        const value = Math.abs(((event.beta - 90) / 180) * 20);
        if (Date.now() - lastUpdate > 200) {
          lastUpdate = Date.now();
          textElement.style.filter = `blur(${value}px)`;
        }
      });

      document.querySelector("button").addEventListener("click", () => {
        DeviceOrientationEvent.requestPermission();
      });
    </script>
  </body>
</html>