<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <title>Cloud Painter</title>
  <style>
    :root {
      --panel: rgba(255,255,255,0.6);
      --panel-strong: rgba(255,255,255,0.8);
      --ink: #475569;
      --accent: #8b9cf6;
      --accent-2: #ffd3e1;
      --glow: rgba(255,255,255,0.8);
    }
    html, body {
      height: 100%;
    }
    body {
      margin: 0;
      overflow: hidden;
      background: linear