* {
  color: #ffaaf4;
}

html {
  background-color: #0c0008;
}

html,
body,
.container {
  height: 100%;
  margin: 0;
}

header {
  display: flex;
  padding-top: 20px;
}

#header_links {
  list-style: none;
  display: flex;
  margin: 0 0 0 auto;
  margin-right: 300px;
}

#title {
  margin: 0;
  margin-left: 120px;
}

a {
  text-decoration: none;
  padding: 0.2em 0.5em;
}

a:hover {
  background-color: #ffaaf4;
  color: #0c0008;
}

.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: auto;
}

#Icon {
  width: 200px;
  border-radius: 50%;
  filter: hue-rotate(185deg);
}
#Icon:hover {
  filter: none;
}

/* p5 キャンバスを背景に配置し、UI を前面に */
canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  display: block;
}

header,
.container {
  position: relative;
  z-index: 1;
}