body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    text-align: center;
    background: linear-gradient(135deg, #e8f5e9, #a5d6a7);
    color: #333;
}

header {
    background: #388e3c;
    color: white;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
}

header p {
    margin: 5px 0 0;
    font-size: 1.2rem;
}

#game-container {
    max-width: 900px;
    margin: 20px auto;
}

#menu button {
    padding: 10px 20px;
    font-size: 1.2rem;
    margin: 10px;
    background: #4caf50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

#menu button:hover {
    background: #388e3c;
}

#game-area, #result-area {
    display: none;
    margin-top: 20px;
    padding: 20px;
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

#game-content button {
    padding: 10px 20px;
    font-size: 1rem;
    background: #81c784;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

#game-content button:hover {
    background: #66bb6a;
}

#play-again {
    padding: 10px 20px;
    font-size: 1rem;
    background: #ffcc80;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

#play-again:hover {
    background: #ffa726;
}