.kb-media-block,
.kb-media-supporting-region,
.kb-media-supporting-items {
  min-width: 0;
  max-width: 100%;
}

/* VUX-001: at desktop, let the public Markdown host grow to .entry-article width
   so .kb-media-full_width can break out of the 72ch narrative measure.
   Other blocks stay on the 72ch column. Below 901px the public 72ch cap remains,
   so 900/390 stay content-width with max-width: 100% and no viewport overflow.
   Studio preview shares the same layout classes; it is not capped at 72ch. */
@media (min-width: 901px) {
  .entry-article .markdown-content {
    max-width: none;
  }

  .entry-article .markdown-content > *:not(.kb-media-full_width) {
    max-width: 72ch;
  }
}

.kb-media-block {
  display: grid;
  gap: 16px;
  margin: 1.5rem 0;
}

.kb-media-figure {
  margin: 0;
  min-width: 0;
}

.kb-media-figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

.kb-media-single_figure {
  max-width: 42rem;
}

.kb-media-full_width {
  width: 100%;
  max-width: 100%;
}

.kb-media-two_up,
.kb-media-grid_2x2,
.kb-media-before_after {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.kb-media-three_up {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.kb-media-sequence,
.kb-media-gallery {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
}

.kb-media-sequence {
  counter-reset: kb-seq;
}

.kb-media-sequence .kb-media-figure {
  counter-increment: kb-seq;
}

.kb-media-sequence .kb-media-figure::before {
  content: "Step " counter(kb-seq);
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #4f6275;
  margin-bottom: 8px;
}

.kb-media-technical_figure .kb-media-figure img,
.kb-media-figure img.diagram-contain,
.diagram-contain {
  object-fit: contain;
  background: #f3f7fb;
  max-height: 720px;
}

.kb-media-caption {
  display: grid;
  gap: 6px;
  margin-top: 8px;
  color: #4f6275;
  font-size: 0.92rem;
}

.kb-media-caption-title {
  margin: 0;
  color: #132131;
  font-weight: 650;
}

.kb-media-caption-text {
  margin: 0;
}

.kb-media-label {
  display: inline-flex;
  margin-bottom: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid #b3c7da;
  background: #eef4fb;
  color: #1f4f93;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.kb-media-technical summary {
  cursor: pointer;
  font-weight: 650;
}

.kb-media-supporting-heading {
  margin: 2rem 0 0.75rem;
  font-size: 1.35rem;
}

.kb-media-supporting {
  margin: 1.25rem 0;
}

.kb-media-supporting-items {
  display: grid;
  gap: 16px;
}

.kb-media-supporting-timeline .kb-media-supporting-items,
.kb-media-supporting-group .kb-media-sequence {
  grid-template-columns: 1fr;
}

.kb-media-block .gallery-viewer-trigger {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  text-align: left;
  border-radius: 12px;
}

.kb-media-block .gallery-viewer-trigger:focus-visible,
.kb-insert-media-dialog :focus-visible,
[data-insert-media]:focus-visible,
[data-layout-shortcut]:focus-visible,
[data-unplaced-here]:focus-visible {
  outline: 3px solid #72b7ff;
  outline-offset: 3px;
}

.media-viewer[hidden] { display: none !important; }
.media-viewer:not([hidden]) { position: fixed; inset: 0; z-index: 1000; }
.media-viewer-backdrop { position: absolute; inset: 0; background: rgba(8, 16, 28, 0.82); }
.media-viewer-dialog { position: relative; z-index: 1; max-width: min(1100px, calc(100vw - 32px)); max-height: calc(100vh - 32px); margin: 16px auto; background: #fff; border-radius: 16px; padding: 16px; display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; overflow: auto; }
.media-viewer-counter { margin: 0; font-size: 0.88rem; color: #4f6275; font-weight: 700; text-align: center; }
.media-viewer-meta { display: grid; gap: 8px; }
.media-viewer-title, .media-viewer-caption { margin: 0; }
.media-viewer-caption { color: #4f6275; }
.media-viewer-close, .media-viewer-nav { border: 1px solid #dde7f1; background: #fff; border-radius: 10px; padding: 10px 12px; cursor: pointer; }
.media-viewer-close { position: absolute; top: 12px; right: 12px; }
.media-viewer-open { overflow: hidden; }
.media-viewer-stage { position: relative; min-width: 0; }
.media-viewer-figure { margin: 0; display: grid; gap: 12px; min-width: 0; touch-action: none; }
.media-viewer-figure img { width: 100%; max-height: calc(100vh - 200px); object-fit: contain; display: block; background: #0d1825; border-radius: 12px; transform-origin: center center; transition: transform 0.08s linear; }
.media-viewer-zoom-controls { position: absolute; top: 8px; left: 8px; z-index: 2; display: flex; gap: 6px; }
.media-viewer-zoom-controls button { border: 1px solid #dde7f1; background: rgba(255, 255, 255, 0.94); border-radius: 8px; min-width: 36px; padding: 6px 10px; cursor: pointer; font-weight: 700; }

@media (max-width: 900px) {
  .kb-media-three_up {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .media-viewer-dialog { grid-template-columns: 1fr; max-width: calc(100vw - 16px); margin: 8px auto; padding-top: 48px; }
  .media-viewer-nav { width: 100%; }
}

@media (max-width: 640px) {
  .kb-media-two_up,
  .kb-media-grid_2x2,
  .kb-media-three_up,
  .kb-media-before_after,
  .kb-media-sequence,
  .kb-media-gallery {
    grid-template-columns: minmax(0, 1fr);
  }

  .kb-media-before_after .kb-media-label {
    display: inline-flex;
  }
}