body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #0f172a; /* tailwind slate-900 */
    touch-action: none; /* Prevent browser handling of gestures */
    font-family: system-ui, -apple-system, 'Roboto', 'Helvetica Neue', Arial, sans-serif;
}
#game-container {
    position: relative;
    width: 100%;
    height: 100%;
    max-width: 600px;
    margin: 0 auto;
    background-color: #1e3a8a; /* Deep ocean background fallback */
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    overflow: hidden;
}
canvas {
    display: block;
    width: 100%;
    height: 100%;
    transform: translateZ(0);
    will-change: transform;
}
.ui-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none; /* Let clicks pass through to canvas by default */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.interactive {
    pointer-events: auto;
}

/* Privacy modal styling */
.privacy-card {
    width: min(520px, 90vw);
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 18px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    padding: 20px;
}

#privacyModal {
    z-index: 200;
}