#grid-container {
    flex: 1; /* Take up remaining space */
    background-color: var(--grid-bg);
    overflow: hidden;
    position: relative;
    z-index: 10;
}

#grid-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 4000px;
    height: 4000px;
    z-index: 1;
    will-change: transform;
}

#grid-canvas {
    position: absolute;
    top: 0;
    left: 0;
}

.grid-letter-tile {
    position: absolute;
    width: 48px;
    height: 48px;
    border-radius: 4px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 30px;
    border: 1px solid #000;
    background-color: #fff;
    /*  touch-action: none; /* Prevent default touch gestures */
    pointer-events: auto;
    z-index: 10;
}
#grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 4000px; /* GRID_WIDTH */
    height: 4000px; /* GRID_HEIGHT */
    pointer-events: none;
    display: none; /* Hide by default */
    z-index: 999;
}
.grid-overlay-tile {
    position: absolute;
    width: 50px; /* GRID_SIZE */
    height: 50px;
    background-color: rgba(0, 128, 0, 0.3);
}
.grid-letter-tile.group-dragging {
    box-shadow: 0 0 7px 3px rgba(80, 80, 80, 0.5);
    opacity: 0.8;
}
.grid-letter-tile>.letter {
    user-select: none;
    pointer-events: none;
}
.grid-letter-tile>.wild {
    user-select: none;
    pointer-events: none;
}
.grid-letter-tile.group-dragging>.letter {
    display: inline-block !important;
}
.grid-letter-tile.group-dragging>.wild {
    display: none;
}
.grid-letter-tile .letter:has(~.wild) {
    display: none;
}

.grid-letter-tile.dragging>.letter {
    display: inline-block !important;
}
.grid-letter-tile.dragging>.wild {
    display: none;
}
.grid-letter-tile .letter:has(~.wild) {
    display: none;
}


.letter-tile {
    --letter-size: min(40px, calc((100vw - 8 * 5px - 2 * 5px) / 8), calc(min(20vh, calc((40px + 5px) * 3 + 2 * 5px)) / 3));
    width: var(--letter-size);
    height: var(--letter-size);
    background-color: #fff;
    color: #000;
    font-size: calc(var(--letter-size) * 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid #ccc;
    border-radius: 4px;
    user-select: none;
    /*  touch-action: none; /* Disable default gestures */
    position: relative;
    z-index: 20;
    pointer-events: auto;
}

.letter-tile, .grid-letter-tile {
    /* Existing styles */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    background: linear-gradient(145deg, #ffffff, #e6e6e6);
    border: 1px solid #ccc;
    pointer-events: auto;
    touch-action: none;
}

.letter-tile:hover, .grid-letter-tile:hover {
    background: linear-gradient(145deg, #e6e6e6, #ffffff);
    cursor: pointer;
}

.invalid-tile {
    color: #b22222;
}

@keyframes tilePlacedAnimation {
    0% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.tile-placed {
    animation: tilePlacedAnimation 0.2s ease;
}