.single-image img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--image-bg);
  transition: border-color 0.28s ease, background-color 0.28s ease;
}

.single-image {
  margin: 8px auto;
  max-width: 80%;
}

.diagram-image {
  max-width: 66%;
  margin-left: auto;
  margin-right: auto;
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 8px auto;
  max-width: 80%;
}

.media-grid img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--image-bg);
  transition: border-color 0.28s ease, background-color 0.28s ease;
}

.equation {
  overflow-x: auto;
  margin: 8px 0;
  padding: 6px 8px;
  border-left: 2px solid var(--border-accent);
  transition: border-color 0.28s ease;
}

.code-block {
  margin: 8px 0;
  padding: 6px 8px;
  border-left: 2px solid var(--border-accent);
  overflow-x: auto;
  max-width: 100%;
  -webkit-overflow-scrolling: touch;
  transition: border-color 0.28s ease;
}

.code-block pre {
  margin: 0;
  white-space: pre;
  min-width: max-content;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  line-height: 1.45;
  font-size: 0.95rem;
  color: var(--text);
}

.algo-block {
  margin: 8px 0;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 4px;
  padding: 10px 12px;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  transition: border-color 0.28s ease, background-color 0.28s ease;
}

.algo-block pre {
  margin: 0;
  white-space: pre-wrap;
  line-height: 1.45;
  font-size: 0.98rem;
  color: var(--text);
}

.algo-keyword {
  font-weight: 700;
}

.algo-block sub {
  font-size: 0.72em;
  vertical-align: -0.22em;
}

.algo-block sup {
  font-size: 0.72em;
  line-height: 0;
}

.conclusion-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 8px;
}

.conclusion-block {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 4px;
  padding: 10px 12px;
  transition: border-color 0.28s ease, background-color 0.28s ease;
}

.conclusion-block h4 {
  margin: 0 0 6px;
  font-size: 1.02rem;
  color: var(--heading-soft);
}

.conclusion-block ul {
  margin: 0 0 0 18px;
}

.conclusion-block li {
  margin: 2px 0;
}

@media (max-width: 860px) {
  .media-grid,
  .conclusion-grid {
    grid-template-columns: 1fr;
  }

  .diagram-image {
    max-width: 100%;
  }

  .single-image,
  .media-grid {
    max-width: 100%;
  }
}