body {
  background-color: #1a1a2a;
  color: #e8e8f0;
  font-family: "Comic Sans MS", "Trebuchet MS", Arial, sans-serif;
  margin: 0;
  padding: 0;
}

img {
  max-width: 180px;
  image-rendering: auto;
}

#yuuri {
  max-width: 96px;
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  pointer-events: none;
}

header {
  background: #2c2c44;
  padding: 16px 24px;
  text-align: center;
  border-bottom: 2px solid #444;
  overflow: visible;
}

header h1 {
  margin: 0;
  font-size: 2em;
  color: #ffd6f3;
}

nav.main-nav {
  position: sticky;
  top: 0;
  z-index: 500;
  display: flex;
  justify-content: center;
  background-color: #1f1f3a;
  border-bottom: 2px solid #444;
  margin-left: -24px;
  margin-right: -24px;
  padding-left: 24px;
  padding-right: 24px;
}


nav.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
}

nav.main-nav li {
  position: relative;
}

nav.main-nav a {
  display: block;
  padding: 12px 20px;
  color: #9db4ff;
  text-decoration: none;
  font-weight: bold;
  white-space: nowrap;
}

nav.main-nav a:hover {
  background-color: #2c2c44;
  color: #ffffff;
}

nav.main-nav li ul {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #1f1f3a;
  min-width: 200px;
  border: 1px solid #444;
  z-index: 1000;
}

nav.main-nav li:hover > ul {
  display: block;
}

nav.main-nav li ul li a {
  padding: 10px 16px;
}

nav.main-nav li ul li a:hover {
  background-color: #2c2c44;
}