body {
    background: linear-gradient(to bottom, #001f3f, #001830);
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

.flappy-container {
    position: relative;
    width: 100%;
    max-width: 360px;
}

canvas {
    border: 4px solid #0095da;
    border-radius: 12px;
    background: radial-gradient(circle at center, #003366 0%, #001f3f 100%);
    box-shadow: 0 0 20px rgba(0, 149, 218, 0.6);
    display: block;
    margin: auto;
}

#score-display {
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 18px;
    color: #0095da;
    background-color: rgba(255, 255, 255, 0.85);
    padding: 8px 14px;
    border-radius: 10px;
    border: 2px solid #0095da;
    z-index: 100;
}