* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: sans-serif;
}

body {
  background: radial-gradient(180deg, #a2d5f2 0%, #76b9e4 100%);
  color: #1b3b5a;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.app-container {
  background: rgba(255, 255, 255, 0.9);
  padding: 30px;
  border-radius: 20px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  text-align: center;
  width: 90%;
  max-width: 400px;
}

h1 {
  margin-bottom: 10px;
  font-size: 24px;
}
p {
  margin-bottom: 25px;
  font-weight: bold;
}

.menu {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.game-btn {
  background: white;
  border: 2px solid #e0e0e0;
  padding: 15px;
  border-radius: 15px;
  font-size: 16px;
  font-weight: bold;
  color: #1b3b5a;
  cursor: pointer;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: transform 0.1s;
}

.game-btn:active {
  transform: scale(0.95);
}