/* Asset viewer (Figures, Tables & Markdown pages) */
.asset-page {
  --asset-bg: #f7f8fb;
  --asset-panel: #ffffff;
  --asset-text: #222;
  --asset-muted: #666;
  --asset-line: #ddd;
  --asset-link: #2a5db0;
  --asset-active: #2a5db0;
  --asset-active-text: #ffffff;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.asset-page .asset-local-nav { margin-bottom: 1.2em; }
.asset-page .asset-local-nav a { color: var(--asset-link); font-size: 0.85em; }

.asset-page h1 {
  color: var(--asset-text);
  font-size: 1.6em;
  line-height: 1.2;
  margin: 0 0 0.25em;
  font-family: "Georgia", serif;
}

.asset-page .subtitle {
  color: var(--asset-muted);
  margin: 0 0 0.5em;
  font-size: 0.95em;
}

.asset-page .citation {
  color: var(--asset-muted);
  margin: 0 0 1.6em;
  font-size: 0.88em;
  max-width: 920px;
  line-height: 1.5;
}

.asset-shell {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 1.2em;
}

.selector {
  align-self: start;
  background: var(--asset-panel);
  border: 1px solid var(--asset-line);
  border-radius: 6px;
  max-height: calc(100vh - 140px);
  overflow: auto;
  padding: 0.6em;
  position: sticky;
  top: 5.5em;
}

.selector-label {
  color: var(--asset-muted);
  font-size: 0.72em;
  font-weight: 700;
  margin: 0.3em 0.5em 0.6em;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.asset-btn {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 4px;
  color: var(--asset-text);
  cursor: pointer;
  display: block;
  font-family: inherit;
  font-size: 0.88em;
  line-height: 1.2;
  margin: 0.15em 0;
  padding: 0.55em 0.65em;
  text-align: left;
  width: 100%;
}

.asset-btn span { color: var(--asset-muted); font-size: 0.9em; }
.asset-btn:hover { background: #f0f4ff; }
.asset-btn.active { background: var(--asset-active); color: var(--asset-active-text); }
.asset-btn.active span { color: var(--asset-active-text); }

.viewer {
  background: var(--asset-panel);
  border: 1px solid var(--asset-line);
  border-radius: 6px;
  min-height: 480px;
  padding: 1.1em 1.2em;
}

.viewer-head {
  align-items: flex-start;
  border-bottom: 1px solid var(--asset-line);
  display: flex;
  gap: 1em;
  justify-content: space-between;
  margin-bottom: 1em;
  padding-bottom: 0.8em;
}

.viewer h2 { color: var(--asset-text); font-size: 1.25em; line-height: 1.2; margin: 0; }
.viewer .kind { color: var(--asset-muted); font-size: 0.85em; margin-top: 0.25em; }
.viewer .open-file { color: var(--asset-link); font-size: 0.85em; white-space: nowrap; }
.viewer .open-file:hover { text-decoration: underline; }

.media-list { display: grid; gap: 1em; margin-bottom: 1em; }

.asset-img {
  background: #fff;
  border: 1px solid var(--asset-line);
  border-radius: 4px;
  display: block;
  margin: 0 auto;
  max-height: 70vh;
  max-width: 100%;
}

.table-img { height: auto; max-height: none; width: 100%; }

.asset-page .caption { color: var(--asset-text); font-size: 0.92em; max-width: 860px; }
.asset-page .caption p { margin: 0 0 0.6em; }

.table-render, .markdown-panel {
  background: #fbfcff;
  border: 1px solid var(--asset-line);
  border-radius: 4px;
  margin-top: 0.9em;
  max-height: 70vh;
  overflow: auto;
}

.table-render pre, .markdown-panel pre {
  color: var(--asset-text);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.8em;
  line-height: 1.55;
  margin: 0;
  padding: 1em;
  white-space: pre-wrap;
}

.data-table { background: #fff; border-collapse: collapse; color: var(--asset-text); font-size: 0.85em; min-width: 500px; width: 100%; }
.data-table th, .data-table td { border: 1px solid var(--asset-line); padding: 0.5em 0.65em; text-align: left; vertical-align: top; }
.data-table th { background: #eef2ff; font-weight: 700; }

.asset-page .empty { color: var(--asset-muted); font-style: italic; }

@media (max-width: 780px) {
  .asset-shell { grid-template-columns: 1fr; }
  .selector { max-height: none; position: static; }
  .viewer { min-height: 0; }
  .viewer-head { display: block; }
  .viewer .open-file { display: inline-block; margin-top: 0.5em; }
  .asset-img { max-height: none; }
}