* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #0a0a2e;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-family: 'Arial', sans-serif;
    overflow: hidden;
}

#gameContainer {
    position: relative;
    width: 600px;
    height: 600px;
}

#gameCanvas {
    display: block;
    background: radial-gradient(circle, #1a1a4e 0%, #0a0a2e 100%);
    border: 3px solid #00ffff;
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
}

#ui {
    position: absolute;
    top: 10px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    color: #00ffff;
    font-size: 18px;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
    pointer-events: none;
}

#lives {
    color: #ff4444;
    text-shadow: 0 0 10px rgba(255, 68, 68, 0.5);
}

#level {
    color: #ffaa00;
    text-shadow: 0 0 10px rgba(255, 170, 0, 0.5);
}

#gameOver {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #ff4444;
    pointer-events: auto;
}

#gameOver h1 {
    font-size: 48px;
    text-shadow: 0 0 20px rgba(255, 68, 68, 0.8);
    margin-bottom: 20px;
}

#gameOver p {
    font-size: 24px;
    color: #00ffff;
    margin-bottom: 30px;
}

#restartBtn {
    padding: 12px 30px;
    font-size: 20px;
    background: #00ffff;
    color: #0a0a2e;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: bold;
}

#restartBtn:hover {
    background: #ff4444;
    color: white;
    transform: scale(1.1);
}