body {
    margin: 0;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #0d001a; /* Background gelap */
    font-family: 'Press Start 2P', cursive; /* Font gaya retro gaming */
    color: #00ffcc; /* Warna teks neon */
    text-shadow: 0 0 5px #00ffcc, 0 0 10px #00ffcc;
}

/* Optional: Untuk font retro gaming. Anda bisa import dari Google Fonts */
/* @import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap'); */

#game-container {
    position: relative;
    border: 2px solid #00ffcc; /* Border neon */
    box-shadow: 0 0 15px #00ffcc;
    overflow: hidden;
}

#gameCanvas {
    background-color: #000000; /* Latar belakang kanvas hitam */
    display: block;
}

#game-info {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 10px;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 5px;
    font-size: 1.2em;
    z-index: 10;
}

#game-info p {
    margin: 5px 0;
}

.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: #00ffcc;
    font-size: 1.5em;
    z-index: 20;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease-in-out;
}

.screen.active {
    opacity: 1;
    visibility: visible;
}

.screen h1 {
    color: #ff00ff; /* Warna judul neon */
    text-shadow: 0 0 10px #ff00ff, 0 0 20px #ff00ff;
    margin-bottom: 20px;
}

.screen button {
    background-color: #00ccff; /* Warna tombol neon */
    color: #0d001a;
    border: none;
    padding: 15px 30px;
    font-size: 1.2em;
    cursor: pointer;
    border-radius: 5px;
    box-shadow: 0 0 10px #00ccff;
    transition: background-color 0.3s, box-shadow 0.3s;
}

.screen button:hover {
    background-color: #00ffff;
    box-shadow: 0 0 20px #00ffff;
}

/* Gaya untuk objek game (pemain, peluru, musuh) - ini akan digambar di canvas */
/* Anda akan menggambar bentuk-bentuk neon menggunakan JavaScript di canvas */

/* Responsif untuk layar kecil (handphone) */
@media (max-width: 768px) {
    #game-info {
        font-size: 1em;
        top: 5px;
        left: 5px;
        padding: 5px;
    }
    .screen {
        font-size: 1em;
    }
    .screen button {
        padding: 10px 20px;
        font-size: 1em;
    }
}