body {
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #1a1a2e;
    font-family: 'Courier New', Courier, monospace;
    overflow: hidden;
    color: #00f2ff;
}

#game-container {
    width: 95vw; 
    max-width: 600px;
    height: 250px;
    background: url('data:image/jpeg;base64,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') repeat-x;
    background-size: cover;
    position: relative;
    overflow: hidden;
    border: 4px solid #7000ff;
    box-shadow: 0 0 20px #7000ff;
    animation: scrollBackground 10s linear infinite;
}

#game-container.paused { animation-play-state: paused; }

@keyframes scrollBackground {
    from { background-position: 0 0; }
    to { background-position: -600px 0; }
}

#player {
    width: 45px;
    height: 45px;
    background-image: url('cyberrunner.jpg');
    background-size: cover;   
    background-position: center;
    background-repeat: no-repeat;
    border: 2px solid #00f2ff; 
    position: absolute;
    bottom: 20px;
    left: 50px;
    border-radius: 8px;
    box-shadow: 0 0 15px #ff0055;
}
.obstacle {
    width: 15px; 
    height: 35px;
    background-color: #00f2ff;
    position: absolute;
    bottom: 20px;
    right: -50px;
    box-shadow: 0 0 15px #00f2ff;
    border-radius: 2px;
}

#ui {
    position: absolute;
    top: 10px;
    right: 15px;
    text-align: right;
    pointer-events: none;
    font-size: 14px;
}

#pause-btn {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 8px 12px;
    background: #7000ff;
    color: white;
    border: none;
    cursor: pointer;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    font-weight: bold;
    z-index: 100;
}

@media (max-width: 600px) {
    #game-container {
        height: 200px;
    }
    #player {
        width: 35px;
        height: 35px;
        bottom: 15px;
    }
    .obstacle {
        height: 30px;
        bottom: 15px;
    }
    #ui {
        font-size: 12px;
    }
    @keyframes jump {
        0% { bottom: 15px; }
        50% { bottom: 140px; }
        100% { bottom: 15px; }
    }
}

.jump {
    animation: jump 0.6s ease-out;
}

@keyframes jump {
    0% { bottom: 20px; }
    50% { bottom: 180px; }
    100% { bottom: 20px; }
}

#pause-overlay {
    display: none;
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.6);
    justify-content: center;
    align-items: center;
    font-size: 24px;
    z-index: 50;
}