body {
  max-width: 960px;
  margin: auto;
  font-family: sans-serif;
  text-align: center;
}

#game-board {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 1rem;
}

#guess-form {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.input-field {
  font-size: 1.5rem;
  line-height: 1.5rem;
  width: 100px;
  text-align: center;
  border: 1px solid #ccc;
  border-radius: 4px;
  background-color: #f9f9f9;
  padding: 0.3rem 0.5rem;
  box-sizing: border-box;
  appearance: textfield;
}

.guess-label {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

.btn-check {
  margin-top: 1rem;
  font-size: 1.5rem;
}

#feedback {
  margin-top: 1rem;
  font-size: 1.2rem;
  font-weight: bold;
  transition: opacity 0.4s ease-in-out;
  opacity: 0;
}

#feedback.shake {
  animation: shake 0.3s;
}

@keyframes shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  50% { transform: translateX(4px); }
  75% { transform: translateX(-4px); }
  100% { transform: translateX(0); }
}

button.emoji-btn {
  font-size: 2rem;
  width: 80px;
  height: 80px;
  margin: 0.5rem;
  border: 2px solid #ccc;
  background: white;
  cursor: pointer;
}

button.emoji-btn:hover {
  background: #eee;
}