body {
  background-color: #444444;
  color: #e8e8e8;
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

.container {
  margin: 0 auto;
  text-align: center;
  padding: 1.5rem;
}

h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  margin-top: 0px;
}

#game {
  display: flex;
  flex-wrap: wrap;
  flex-direction: column;
  margin-bottom: 1.5rem;
}

.game-row {
  display: flex;
  justify-content: center;
}

#game .pearl {
  background: radial-gradient(circle at 35% 20%, #fff, #d9d9d9, #969696);
  border-radius: 50%;
  height: 3rem;
  width: 3rem;
  margin: 5px;
  box-shadow: 2px 4px 2px rgba(0, 0, 0, 0.7);
}

#message-box {
  margin-bottom: 1.5rem;
}

#button {
  background-color: #4CAF50;
  border: none;
  color: white;
  padding: 10px 20px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 1rem;
  margin-bottom: 1.5rem;
  border-radius: 5px;
  cursor: pointer;
  box-shadow: 5px 3px rgba(0, 0, 0, 0.6);
}

#button:disabled {
  background-color: #888;
  pointer-events: none;
}

#button:hover {
  background-color: #3e8e41;
  box-shadow: 5px 3px rgba(0, 0, 0, 0.6) inset;
}

.rules-container {
  margin: 0 auto;
  width: 38em;
}

.rules {
  text-align: left;
}