body {
    background: linear-gradient(to bottom, #a8e063 0%, #56ab2f 100%);
    font-family: 'Press Start 2P', Arial, sans-serif;
    color: #222;
    text-align: center;
    margin: 0;
    padding: 0;
}

h1 {
    margin-top: 10px;
    font-size: 2.5em;
    letter-spacing: 2px;
    text-shadow: 2px 2px 0 #fff, 4px 4px 0 #56ab2f;
}

#gameCanvas {
    display: block;
    margin: 30px auto;
    background: #7ec850;
    border: 4px solid #333;
    box-shadow: 0 0 20px #333;
}

#gameOver {
    position: absolute;
    top: 120px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255,255,255,0.95);
    border: 3px solid #333;
    border-radius: 10px;
    padding: 30px 40px;
    z-index: 10;
}

.hidden {
    display: none;
}

#leaderboard {
    margin: 30px auto;
    width: 320px;
    background: #fffbe7;
    border: 2px solid #333;
    border-radius: 8px;
    box-shadow: 0 2px 8px #3333;
    padding: 20px 0;
}

#leaderboard h2 {
    margin: 0 0 10px 0;
    font-size: 1.2em;
    letter-spacing: 1px;
}

#leaderboardList {
    list-style: decimal inside;
    padding: 0;
    margin: 0;
    font-size: 1.1em;
}

#scoreForm {
    margin-top: 10px;
}

#scoreForm input[type="text"] {
    width: 60px;
    font-size: 1.2em;
    text-transform: uppercase;
    text-align: center;
    margin-right: 10px;
}

#scoreForm button {
    font-size: 1em;
    padding: 4px 12px;
    background: #56ab2f;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    box-shadow: 1px 1px 0 #333;
}

#scoreForm button:hover {
    background: #388e1f;
}
#levelSelect {
    margin-top: 24px;
    margin-bottom: 10px;
}
#levelSelect button {
    font-family: 'Press Start 2P', Arial, sans-serif;
    font-size: 1em;
    margin: 0 10px;
    padding: 8px 24px;
    background: #fffbe7;
    border: 2px solid #333;
    border-radius: 6px;
    box-shadow: 2px 2px 0 #56ab2f;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}
#levelSelect button:hover, #levelSelect button.selected {
    background: #56ab2f;
    color: #fff;
}