* {
    box-sizing: border-box;
}

body {
    margin: 0;

    min-height: 100vh;

    background: #f8f9fa;

    font-family: Arial, Helvetica, sans-serif;

    display: flex;
    justify-content: center;
    align-items: center;
}

.game-container {
    text-align: center;
}

h1 {
    margin: 0 0 10px 0;

    font-size: 42px;

    color: #4285f4;
}

.score {
    font-size: 22px;

    margin-bottom: 15px;

    color: #333;
}

#game {
    display: block;

    background: white;

    border: 3px solid #dadce0;

    border-radius: 8px;

    box-shadow:
        0 2px 8px rgba(0, 0, 0, 0.15);

    max-width: 90vw;
    max-height: 70vh;
}

.controls {
    margin-top: 15px;

    color: #666;

    font-size: 15px;
}

.actions {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.button {
    display: inline-block;

    margin-top: 5px;

    padding: 10px 22px;

    border: none;

    border-radius: 6px;

    background: #4285f4;

    color: white;

    font-size: 16px;

    cursor: pointer;

    text-decoration: none;

    transition: background 0.15s;
}

.button:hover {
    background: #3367d6;
}

.button:active {
    transform: scale(0.97);
}

@media (max-width: 420px) {
    .actions {
        flex-wrap: wrap;
    }
}

#gameOver {
    min-height: 25px;

    margin-top: 12px;

    font-size: 20px;

    font-weight: bold;

    color: #ea4335;
}