.question_header {
  width: min(800px, 90%);   /* shrink the whole section */
  margin: 2rem auto;        /* center on the page */
  text-align: center;
}

.question_header h3 {
  margin-bottom: 1rem;
}

figure {
    display: inline-block;  /* arrange figures horizontally */
    margin: 0;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
}

.q1 {
  width: min(800px, 90%);   /* shrink the whole section */
  margin: 2rem auto;        /* center on the page */
  text-align: center;
}

.q1 h3 {
  margin-bottom: 1rem;
}

/* Tight 2-column row of figures */
.q1_images {
  display: grid;
  grid-template-columns: repeat(2, 1fr);  /* two equal columns */
  column-gap: 5px;                       /* <-- control the gap here */
  row-gap: 12px;
  justify-content: center;                /* center the grid block */
}

/* Remove default figure margins */
.q1_images figure { margin: 0; }

.q1_image {
  width: 45%;   /* shrink both images equally */
  height: auto; /* keep aspect ratio */
  border-radius: 6px;
}

.q2 {
  width: min(800px, 90%);   /* shrink the whole section */
  margin: 2rem auto;        /* center on the page */
  text-align: center;
}

.q2 h3 {
  margin-bottom: 1rem;
}

.q2_image {
  width: 50%;   /* shrink both images equally */
  height: auto; /* keep aspect ratio */
  border-radius: 6px;
}

.q3 {
  width: min(800px, 90%);   /* shrink the whole section */
  margin: 2rem auto;        /* center on the page */
  text-align: center;
}

.q3 h3 {
  margin-bottom: 1rem;
}

.navbar {
  background: #e6f0ff;
  padding: 1rem;
  text-align: center;
}
.navbar a {
  color: black;
  margin: 0 1rem;
  text-decoration: none;
  font-weight: bold;
}
.navbar a:hover {
  text-decoration: underline;
}