body {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: linear-gradient(to bottom right, #fdfbfb, #ebedee);
  padding-bottom: 10px;
  font-family: "Press Start 2P", cursive;
}

h1 {
  font-size: 3rem;
}
.container {
  display: flex;
  justify-content: center;
  align-items: center;
  border: 2px solid black;
}

.btn {
  width: 200px;
  height: 200px;
  margin: 20px;
  border-radius: 20%;
  border: 7px solid black;
}
.green {
  background-color: #63aac0;
}

.red {
  background-color: #d95980;
}

.yellow {
  background-color: #f99b45;
}

.blue {
  background-color: #819ff9;
}

.flash {
  background-color: green;
  opacity: 0.7;
}

@media (max-width: 800px) {
  .btn {
    width: 150px;
    height: 150px;
  }
}

@media (max-width: 450px) {
  .btn {
    width: 100px;
    height: 100px;
  }
}

.game-footer {
  margin-top: auto;
  width: 100%;
  padding: 20px;
  font-size: 1rem;
  color: #333;
  background-color: #f1f1f1;
  border-top: 1px solid #ccc;
  text-align: center;
}

.game-footer p {
  font-family: "Poppins", sans-serif;
  font-size: 14px;
  font-weight: 400;
  color: #6c757d;
  text-align: center;
}

h2#score {
  font-family: "Poppins", sans-serif;
  font-size: 18px;
  color: #333;
  margin: 10px 0;
}

#restart-msg {
  font-family: "Poppins", sans-serif;
  font-size: 16px;
  color: #444;
  margin: 10px 0;
}

.btn {
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  transition: transform 0.1s ease;
}

.btn:active {
  transform: scale(0.98);
}

.game-over {
  background-color: red !important ;
}