html, body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  text-align: center;
  background-color: #f5f5f5;
  margin: 0;
  padding: 20px ;
  height: 100%;
  width: 100%;
}

#game-screen {
  max-width: 600px;
  margin: auto;
  padding: 20px;
  border-radius: 10px;
  background-color: #fff;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

#scrambled-word {
  margin: 20px 0;
  padding: 10px;
  font-size: 1.5em;
  font-weight: bold;
  color: #333;
  border-bottom: 2px solid #333;
  } 

input [type="text"] {
  padding: 10px;
  font-size: 1em;
  border-radius: 5px;
  border: 1px solid #ddd;
  margin-bottom: 10px;
}

button:hover {
  opacity: 0.9;
}

#timer{
  color: #d9534f;
  font-size: 2em;
  margin: 10px 0;
}

#score {
  color: #5cb85c;
  font-size: 2em;
  margin: 10 px 0;
}

.urgent {
  animation: blinker 1s linear infinite;
}

@keyframes blinker{
  50% {
    background-color: #ff6347;
  }
}

@keyframes flashEffect {
  0%, 100%, background-color : transparent;
  50% ,background-color : #4CAF50;
}

.correct-guess {
  animation: flasheffect 1s;
}