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

html,
body {
    width: 100%;
    height: 100%;
}

body {
    font-family: 'Arial', sans-serif;
    background: #1a0a2e;
    overflow: hidden;
}

.game-container {
    position: fixed;
    inset: 0;
}

#gameCanvas {
    display: block;
    width: 100vw;
    height: 100vh;
    background: #1a0a2e;
}

.ui {
    position: absolute;
    top: 20px;
    left: 20px;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 0 8px rgba(0, 0, 0, 0.8);
    z-index: 10;
}

.score {
    position: fixed;
    top: 40px;
    right: 40px;
    font-size: 48px;
    font-weight: bold;
    font-family: 'VT323', monospace;
    color: #7ebcff;
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
    z-index: 10;
}

.high-score {
    position: fixed;
    top: 80px;
    right: 40px;
    font-size: 32px;
    font-weight: bold;
    font-family: 'VT323', monospace;
    color: #ff6b6b;
    text-shadow: 0 0 8px rgba(255, 215, 0, 0.5);
    z-index: 10;
}

.instructions {
    font-size: 14px;
    opacity: 0.9;
}

.instructions p {
    margin: 5px 0;
}