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

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top, #4dd0e1 0%, #006064 45%, #000a12 100%);
    font-family: 'Squada One', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #f5f5f5;
}

.game-wrapper {
    padding: 12px;
    border-radius: 18px;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.18), rgba(0, 0, 0, 0.45));
    box-shadow:
        0 18px 35px rgba(0, 0, 0, 0.75),
        0 0 0 2px rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
}

#canvas {
    display: block;
    background-color: #30c0df;
    border-radius: 12px;
    border: 2px solid rgba(0, 0, 0, 0.85);
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.18),
        0 10px 18px rgba(0, 0, 0, 0.65);
}