body {
  font-family: Arial, sans-serif;
  background: #819191;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.container {
  text-align: center;
  background: #fff;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.2);
  width: 300px;
}

h1 {
  color: #333;
  margin-bottom: 20px;
}

.color-display {
  height: 150px;
  width: 150px;
  margin: 0 auto 20px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  border: 2px solid #ccc;
}

.color-display p {
  font-weight: bold;
  color: #333;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: #ff6b6b;
  color: white;
  transition: 0.3s;
}

button:hover {
  background: #ff4757;
}