index.css

:root {
  font-family: system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: light dark;
  color: rgba(255, 255, 255, 0.87);
  background-color: #242424;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.annotation-container-grid {
  display: grid; /* Use Grid layout */
  /* Define grid areas */
  grid-template-areas: 
    "layer"; /* Single area named 'image' */
  grid-template-columns: 1fr; /* Single column takes full width */
  grid-template-rows: auto; /* Row height determined by content (image) */
  width: 100%; /* Or specific dimensions */
  margin: auto; /* Center the container */
}

.background-image-grid {
  /* Assign to the 'image' area */
  grid-area: layer;
  /* Make sure it behaves correctly */
  display: block;
  width: 100%;
  height: auto;
  user-select: none;
  /* Ensure it's below the overlay */
  z-index: 1;
}

.annotations-overlay-grid {
  /* Assign to the 'image' area */
  grid-area: layer;
  /* CRITICAL: This layer MUST be a positioning context for its children */
  position: relative;

  /* Ensure it's above the image */
  z-index: 2;

  /* Optional: If children might overflow */
  overflow: hidden;
  pointer-events: none; /* Allows clicks/hovers to pass through */

  /* We DON'T need top, left, width, height, or position: absolute here anymore */
  /* Grid layout handles its position and size based on the grid cell */
}

/* --- Styles for annotations INSIDE the overlay remain the same --- */
/* --- (using position: absolute relative to .annotations-overlay-grid) --- */

.annotation-line {
  position: absolute; /* Positioned relative to .annotations-overlay-grid */
  background-color: rgba(255, 255, 255, 0.8);
  /* height/width/top/left set via inline styles */
  z-index: 3; /* Above overlay background, if overlay had one */
}

.annotation-text {
  position: absolute; /* Positioned relative to .annotations-overlay-grid */
  color: rgba(255, 255, 255, 0.9);
  font-family: sans-serif;
  font-size: 10px;
  line-height: 1.3;
  pointer-events: auto; /* Make text selectable */
  white-space: pre-line;
  max-width: 150px;
  z-index: 4; /* Above lines */
}

.annotation-text span {
   display: block;
}

.annotation-text .title {
  font-weight: bold;
  text-transform: uppercase;
  font-size: 11px;
  margin-bottom: 3px;
}

.annotation-text .description {
  font-size: 9px;
}


/* Fluid typography using clamp */
.annotation-text .title {
  display: block;
  font-size: clamp(0.8rem, 0.6vw + 0.5rem, 1.2rem);
  font-weight: bold;
  margin-bottom: 0.25em;
}

.annotation-text .description {
  display: block;
  font-size: clamp(0.7rem, 0.5vw + 0.4rem, 1rem);
  line-height: 1.3;
}