body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #111; /* Dark background */
    overflow: hidden; /* Prevent scrollbars */
    font-family: 'Arial', sans-serif;
    color: white;
    /* Prevent text selection on touch controls */
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    /* Improve touch responsiveness */
    touch-action: manipulation;
}

.game-container {
    position: relative; /* Needed for absolute positioning of UI overlay */
    border: 1px solid #444; /* Optional border for the game area */
    /* Ensure touch controls are contained */
    overflow: hidden;
}

canvas {
    display: block; /* Remove extra space below canvas */
    background-color: #000; /* Black game area */
}

.ui-overlay {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    display: flex;
    justify-content: space-between;
    font-size: 1.5em;
    pointer-events: none; /* Allow clicks to pass through to canvas if needed */
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
    /* Make sure items don't shrink if space is tight */
    flex-wrap: nowrap;
}

#user-display,
#score,
#lives,
#level {
    padding: 5px 10px;
    white-space: nowrap; /* Prevent wrapping */
}

/* Optional: Add specific spacing if needed */
#user-display {
    /* Maybe add margin-right if needed */
}

/* --- Touch Controls --- */
.touch-controls {
    position: absolute;
    bottom: 20px; /* Adjust as needed */
    left: 20px;
    right: 20px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    pointer-events: none; /* Container doesn't block canvas */
    z-index: 10; /* Above canvas */
}

.touch-left,
.touch-right {
    display: flex;
    flex-direction: column; /* Stack buttons vertically if needed, or use row */
    gap: 15px;
}

.touch-left {
    align-items: flex-start;
    flex-direction: row; /* Place rotate side-by-side */
}

.touch-right {
    align-items: flex-end;
    flex-direction: row; /* Place action buttons side-by-side */
}

.touch-btn {
    width: 60px; /* Adjust size */
    height: 60px;
    background-color: rgba(255, 255, 255, 0.2); /* Semi-transparent */
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%; /* Circular buttons */
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: auto; /* Buttons are interactive */
    cursor: pointer; /* Indicate clickable */
    padding: 0;
}

.touch-btn svg {
    width: 50%;
    height: 50%;
}

.touch-btn:active {
    background-color: rgba(255, 255, 255, 0.4); /* Feedback on press */
}

/* Hide touch controls on larger screens (e.g., tablets/desktops) */
@media (min-width: 768px) {
    .touch-controls {
        display: none;
    }
}

/* Add more styles later for menus, buttons, etc. */