/* =========================================================
   ClassTrail renderer styles for the type-dispatched
   item branches added in Phase 3 (guide, material, paper,
   model_info, google_doc).

   Loaded by both admin (classtrail/index.html) and public
   (trilha/index.html) so CTRenderer-emitted markup looks
   consistent across surfaces.

   Reuses Backstage theme tokens only. No raw color values.
   ========================================================= */

/* Tabs (used by guide platform_tabs) */
.ctr-tab-nav {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.ctr-tab-btn {
  background: transparent;
  border: 1px solid transparent;
  border-bottom: none;
  color: var(--text-secondary);
  padding: 6px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 6px 6px 0 0;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.ctr-tab-btn:hover {
  background: var(--option-hover-bg);
  color: var(--text-primary);
}
.ctr-tab-btn.ctr-tab-active {
  background: var(--surface);
  border-color: var(--border);
  color: var(--primary);
  margin-bottom: -1px;
}
.ctr-tab-panel {
  padding-top: 8px;
}
.ctr-hidden {
  display: none !important;
}

/* Affordance row (top-right action buttons on cards) */
.ctr-affordance-row {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-bottom: 8px;
  min-height: 0;
}
.ctr-affordance-row:empty {
  display: none;
}
.ctr-affordance-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.ctr-affordance-btn:hover {
  background: var(--option-hover-bg);
  border-color: var(--primary);
}

/* Material attachment */
.ctr-attachment-img {
  margin-top: 12px;
}
.ctr-attachment-img img {
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: block;
}
.ctr-attachment-link {
  margin-top: 12px;
}
.ctr-dl-link {
  display: inline-block;
  padding: 8px 14px;
  font-size: 0.9rem;
  color: var(--primary);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
}
.ctr-dl-link:hover {
  background: var(--option-hover-bg);
  border-color: var(--primary);
}

/* Paper layout */
.ctr-paper-meta {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 4px 0 12px;
  font-style: italic;
}
.ctr-paper-abstract {
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--option-hover-bg);
  border-left: 3px solid var(--primary);
  padding: 10px 14px;
  border-radius: 0 6px 6px 0;
  margin: 0 0 16px;
  line-height: 1.6;
}
.ctr-pdf-embed {
  width: 100%;
  margin: 12px 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.ctr-pdf-object {
  width: 100%;
  height: 600px;
  display: block;
  background: var(--background);
}
.ctr-paper-supplement {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
}

/* Model info card */
.ctr-model-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 10px;
}
.ctr-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.ctr-badge-provider {
  background: var(--option-hover-bg);
  color: var(--text-primary);
  border-color: var(--primary);
}
.ctr-badge-model {
  background: var(--surface);
  color: var(--text-secondary);
  font-family: 'Inter', monospace;
}
.ctr-model-context {
  margin: 0 0 10px;
}
.ctr-pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: 0.85rem;
  border-radius: 999px;
  background: var(--option-hover-bg);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.ctr-pill-context {
  font-weight: 500;
}
.ctr-model-strengths {
  margin: 0 0 14px;
}
.ctr-strengths-list {
  margin: 0;
  padding-left: 20px;
  color: var(--text-primary);
}
.ctr-strengths-list li {
  margin-bottom: 4px;
  line-height: 1.5;
}
.ctr-model-doc {
  margin-top: 10px;
}
.ctr-doc-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--surface);
  background: var(--primary);
  border: 1px solid var(--primary);
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.15s;
}
.ctr-doc-link-btn:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

/* =========================================================
   Markdown body baseline (.ctr-prompt-body and verbatim)
   Used by every CTRenderer consumer. Consumer-scoped overrides
   (.cv-renderer-scroll *, .tr-page .ctr-prompt-body *, ...) win
   on equal specificity because their stylesheets load later.
   ========================================================= */

.ctr-prompt-body {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-primary);
}

.ctr-prompt-body > *:first-child { margin-top: 0; }
.ctr-prompt-body > *:last-child  { margin-bottom: 0; }

.ctr-prompt-body h1,
.ctr-prompt-body h2,
.ctr-prompt-body h3,
.ctr-prompt-body h4 {
  margin: 1.4em 0 0.5em;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  font-weight: 700;
}
.ctr-prompt-body h1 { font-size: 1.25rem; }
.ctr-prompt-body h2 { font-size: 1.1rem; }
.ctr-prompt-body h3 { font-size: 1rem; }

.ctr-prompt-body p {
  margin: 0 0 0.85em;
}

.ctr-prompt-body ul,
.ctr-prompt-body ol {
  margin: 0.5em 0 1em;
  padding-left: 1.4em;
}
.ctr-prompt-body li { margin-bottom: 0.35em; }

.ctr-prompt-body a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid rgba(20, 184, 166, 0.35);
  transition: border-color 0.15s;
}
.ctr-prompt-body a:hover { border-bottom-color: var(--primary); }

.ctr-prompt-body code {
  background: rgba(20, 184, 166, 0.12);
  color: var(--text-primary);
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 0.86em;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

.ctr-prompt-body pre {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1rem 1.1rem;
  border-radius: 10px;
  margin: 1em 0;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

.ctr-prompt-body pre code {
  background: none;
  padding: 0;
  font-size: 0.86em;
}

.ctr-prompt-body blockquote {
  margin: 1em 0;
  padding: 0.6em 1em;
  border-left: 3px solid var(--primary);
  background: rgba(20, 184, 166, 0.05);
  color: var(--text-secondary);
  border-radius: 0 8px 8px 0;
}

.ctr-prompt-body strong {
  color: var(--text-primary);
  font-weight: 700;
}

.ctr-prompt-verbatim {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-wrap: break-word;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  background: rgba(20, 184, 166, 0.05);
  border: 1px solid rgba(20, 184, 166, 0.18);
  border-radius: 10px;
  padding: 1rem 1.15rem;
  max-height: 60vh;
  overflow-y: auto;
}

[data-theme="dark"] .ctr-prompt-verbatim {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.1);
}

/* Copy button under prompt bodies. CTRenderer emits it for non-preview prompt
   items; consumers that don't want it (lessons, trilha cards, classvault scroll)
   hide it via a higher-specificity .ctr-copy-btn{display:none}. The base style was
   missing, so it rendered as a bare browser button in Codex's Items preview.
   Theme tokens carry dark mode. */
.ctr-copy-btn {
  display: inline-flex;
  align-items: center;
  margin-top: 10px;
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.ctr-copy-btn:hover {
  background: var(--option-hover-bg);
  border-color: var(--primary);
}

/* Mobile fits */
@media (max-width: 700px) {
  .ctr-pdf-object {
    height: 380px;
  }
  .ctr-affordance-row {
    flex-wrap: wrap;
  }
  .ctr-paper-abstract {
    padding: 10px 12px;
  }
}