/* ==========================================================================
   Preview pane (shared_static/preview.js) — header bar + per-kind content.
   DS tokens only (--ink-*, --panel*, --hair, --accent); no chat.css legacy
   vars.  The pane fills its PaneManager cell; only .preview-content scrolls.
   ========================================================================== */

.preview-root {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}

/* ----- header bar ----- */
.preview-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--hair);
  background: var(--panel);
  flex: none;
}

.preview-nav {
  flex: none;
  width: 24px;
  height: 22px;
  padding: 0;
  font-size: 10px;
  line-height: 1;
  color: var(--ink-2);
  background: var(--panel-2);
  border: 1px solid var(--hair);
  border-radius: 3px;
  cursor: pointer;
}
.preview-nav:hover:not(:disabled) {
  color: var(--ink-1);
  border-color: var(--ink-4);
}
.preview-nav:disabled {
  opacity: 0.35;
  cursor: default;
}

.preview-kindchip {
  flex: none;
  padding: 1px 6px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-2);
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  border: 1px solid var(--hair);
  border-radius: 3px;
}
.preview-kindchip:empty {
  display: none;
}

.preview-titletext {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
  color: var(--ink-1);
}

.preview-ext {
  flex: none;
  font-size: 11px;
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px dotted var(--ink-4);
}
.preview-ext:hover {
  color: var(--ink-1);
}

/* remote-assets opt-in (web previews) — compact single-row header control */
.preview-assets {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--ink-2);
  white-space: nowrap;
  cursor: pointer;
}
.preview-assets:hover {
  color: var(--ink-1);
}
.preview-assets-box {
  flex: none;
  margin: 0;
  cursor: pointer;
}

/* ----- content host ----- */
.preview-content {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  background: var(--panel-2);
}

/* web + pdf fill the cell */
.preview-frame {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: #fff; /* pages assume a light canvas until their CSS paints */
}

.preview-imgwrap {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 12px;
}
.preview-img {
  max-width: 100%;
  height: auto;
}

.preview-pre {
  margin: 0;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  color: var(--ink-2);
  white-space: pre-wrap;
  word-break: break-word;
}

.preview-markdown {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--ink-1);
}
/* Code-block chrome + katex display + mermaid: the .msg.assistant-scoped rules
   in shared chat.css don't reach the pane (content is .preview-markdown, not a
   .msg.assistant message), so restate them on DS tokens.  The hljs TOKEN colors
   are global and already apply. */
.preview-markdown code {
  padding: 1px 4px;
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: color-mix(in srgb, var(--ink-4) 18%, transparent);
  border-radius: 3px;
}
.preview-markdown pre {
  padding: 8px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--panel);
  border: 1px solid var(--hair);
  border-radius: 3px;
}
.preview-markdown pre code {
  padding: 0;
  font-size: inherit;
  background: none;
}
.preview-markdown .katex-display {
  margin: 8px 0;
  overflow-x: auto;
}
/* Mermaid: mermaid.js draws a self-contained SVG, but without a width clamp a
   wide diagram overflows the pane (the .msg.assistant mermaid rules in chat.css
   don't reach .preview-markdown). */
.preview-markdown .mermaid-container {
  margin: 8px 0;
  text-align: center;
  overflow-x: auto;
}
.preview-markdown .mermaid-container svg {
  max-width: 100%;
  height: auto;
}
.preview-markdown img {
  max-width: 100%;
}

/* ----- table kind ----- */
.preview-tablewrap {
  overflow: auto;
  padding: 8px;
}
.preview-table {
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-2);
}
.preview-table th,
.preview-table td {
  padding: 3px 8px;
  border: 1px solid var(--hair);
  text-align: left;
  white-space: nowrap;
  max-width: 360px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.preview-table thead th {
  position: sticky;
  top: 0;
  background: var(--panel);
  padding: 0;
}
.preview-th {
  display: block;
  width: 100%;
  padding: 4px 8px;
  font: inherit;
  font-weight: 600;
  color: var(--ink-1);
  text-align: left;
  background: none;
  border: 0;
  cursor: pointer;
}
.preview-th:hover {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
}
.preview-table th[aria-sort] .preview-th::after {
  content: " ▲";
  font-size: 9px;
}
.preview-table th[aria-sort="descending"] .preview-th::after {
  content: " ▼";
}

/* ----- states ----- */
.preview-empty,
.preview-loading,
.preview-error {
  padding: 24px 16px;
  font-size: 12px;
  color: var(--ink-3);
  text-align: center;
}
.preview-error-msg {
  margin-bottom: 10px;
}
.preview-retry {
  padding: 4px 14px;
  font-size: 11px;
  color: var(--ink-1);
  background: var(--panel);
  border: 1px solid var(--hair);
  border-radius: 3px;
  cursor: pointer;
}
.preview-retry:hover {
  border-color: var(--ink-4);
}
.preview-note {
  padding: 6px 12px;
  font-size: 10px;
  color: var(--ink-3);
  border-top: 1px solid var(--hair);
}

/* ----- transcript chip (conversation.js buildPreviewChip) ----- */
.conv-preview-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  margin-top: 6px;
  padding: 3px 10px;
  font-size: 11px;
  color: var(--ink-2);
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  border: 1px solid var(--hair);
  border-radius: 3px;
  cursor: pointer;
}
.conv-preview-chip:hover {
  color: var(--ink-1);
  border-color: var(--ink-4);
}
.conv-preview-glyph {
  flex: none;
  color: var(--ink-3);
}
.conv-preview-title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.conv-preview-kind {
  flex: none;
  padding: 0 5px;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-3);
  border: 1px solid var(--hair);
  border-radius: 3px;
}