body {
    font-family: sans-serif;
    background-color: #f0f0f0;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

#controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 35rem;
    transition: opacity 0.3s ease;
}

#controls.disabled {
    opacity: 0.5;
}

input[type="text"] {
    padding: 1rem;
    border-radius: 4px;
}

input:disabled, button:disabled {
    cursor: not-allowed;
}

/* The large preview image */
#preview-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

#preview-wrapper {
    position: relative; /* To position the label absolutely if needed, though we are stacking */
    width: 10rem;
    height: 10rem;
    border: 2px solid #333; /* move border here */
    padding: 2px;
}

#preview-bitmap {
    width: 10rem;
    height: 10rem;
    image-rendering: pixelated;
}

/* New layout for input + info */
#input-row {
  display: flex;
  width: 100%;
  align-items: flex-start;
}

/* 2/3 for input, 1/3 for info */
#input-col {
  flex: 0 0 calc((100% / 3) * 2); /* 2/3 width */
  display: flex;
  flex-direction: column;
}

#info-col {
  flex: 0 0 calc(100% / 3); /* 1/3 width */
  display: flex;
  align-items: center;
}

/* Text showing the Hex/Index result */
#result-info {
    font-family: monospace;
    font-size: 0.9rem;
    color: #555;
    margin-left: 0.5rem;
}

/* Highlight last two hex digits */
#result-info .last-two {
  font-weight: bold;
  color: #000;
}

/* The grid of all 256 images */
#grid-container {
    display: flex;
    flex-wrap: wrap;
    width: fit-content;
    max-width: 100%;
    gap: 8px;
    justify-content: center;
}

/* Small 2rem bitmaps in the grid */

/* Container for label + small bitmap */
.bitmap-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  cursor: pointer;
  transition: transform 0.1s ease;
}

.bitmap-wrapper:hover {
  transform: scale(1.1);
}

/* Small bitmap box only */
.bitmap {
  width: 2rem;
  height: 2rem;
  border: 1px solid #ccc;
  display: flex;
  flex-wrap: wrap;
  box-sizing: border-box;
}

.pixel {
    width: 33.33%;
    height: 33.33%;
    box-sizing: border-box;
}

.pixel.black {
    background-color: black;
}

.pixel.white {
    background-color: #fff0;
}

/* Index label (0-255) on top of the small images */
.index-label {
  font-size: 0.6rem;
  color: rgba(0, 0, 0, 0.7);
  font-weight: bold;
  text-align: center;
}