/*
 * Rich content in rendered Markdown — assistant answers (.chat-markdown), KB
 * pages (.kb-page) and anything else analyzer/markdown_render produces:
 * labelled code blocks with a Copy button, sideways-scrolling tables, and
 * Mermaid diagrams with a toolbar and a full-screen view
 * (static/rich-content.js). Loaded by both base templates, after app.css.
 * Tokens only (both themes); works in the narrow chat drawer, a full-width
 * page and at phone width.
 */

/* ── Headings, lists, quotes inside an answer ─────────────────────────── */
.chat-markdown h2 {
    padding-bottom: 4px;
    border-bottom: var(--border-w) solid var(--border);
}
.chat-markdown h2,
.chat-markdown h3 { margin-top: 16px; }
.chat-markdown li::marker { color: var(--text-muted); }
.chat-markdown ol > li::marker { font-variant-numeric: tabular-nums; }
.chat-markdown blockquote { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.chat-markdown blockquote > :last-child { margin-bottom: 0; }

/* ── Code blocks ──────────────────────────────────────────────────────── */
.md-code {
    margin: 10px 0;
    border: var(--border-w) solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    overflow: hidden;
    max-width: 100%;
}
.md-code-head {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 26px;
    padding: 2px 6px 2px 10px;
    border-bottom: var(--border-w) solid var(--border);
    background: var(--panel);
}
.md-code-lang {
    flex: 1;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
    font-family: var(--font-sans);
}
.md-code pre,
.chat-markdown .md-code pre,
.wiki-content .md-code pre {
    margin: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    padding: 10px 12px;
    overflow-x: auto;
}
.md-code pre code {
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.5;
    white-space: pre;
    background: transparent;
    border: 0;
    padding: 0;
}

/* ── Buttons (Copy, diagram toolbar, overlay) ─────────────────────────── */
.rc-btn {
    font-family: var(--font-sans);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    line-height: 1;
    padding: 5px 8px;
    color: var(--text-secondary);
    background: var(--card);
    border: var(--border-w) solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    white-space: nowrap;
}
.rc-btn:hover { color: var(--text-primary); border-color: var(--accent); }
.rc-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.rc-copy-buffer { position: fixed; top: 0; left: 0; width: 1px; height: 1px; opacity: 0; }

/* ── Tables ───────────────────────────────────────────────────────────── */
.md-table-wrap {
    max-width: 100%;
    overflow-x: auto;
    margin: 10px 0;
    border: var(--border-w) solid var(--border);
    border-radius: var(--radius-sm);
}
.md-table-wrap table,
.chat-markdown .md-table-wrap table,
.wiki-content .md-table-wrap table {
    margin: 0;
    width: 100%;
    border-collapse: collapse;
}
.chat-markdown .md-table-wrap th,
.chat-markdown .md-table-wrap td {
    padding: 6px 10px;
    vertical-align: top;
    border-bottom: var(--border-w) solid var(--border);
}
.chat-markdown .md-table-wrap th { white-space: nowrap; }
.chat-markdown .md-table-wrap tbody tr:nth-child(even) td {
    background: color-mix(in srgb, var(--panel) 60%, transparent);
}
.chat-markdown .md-table-wrap tbody tr:last-child td { border-bottom: 0; }

/* ── Diagrams ─────────────────────────────────────────────────────────── */
/* Before the script draws it (or without JavaScript) a diagram reads as its
   source, like any other code block. */
.mermaid[data-mermaid-src] {
    position: relative;
    margin: 12px 0;
    padding: 10px 12px;
    max-width: 100%;
    background: var(--panel);
    border: var(--border-w) solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.5;
    color: var(--text-secondary);
    white-space: pre;
    overflow-x: auto;
    text-align: left;
}
.mermaid[data-mermaid-src].rc-diagram-drawn {
    white-space: normal;
    font-family: var(--font-sans);
    padding: 12px;
}
.mermaid[data-mermaid-src].rc-diagram-failed {
    white-space: normal;
    padding: 0;
    background: transparent;
    border: 0;
}
.rc-diagram-failed .md-code { margin: 0; }
.rc-diagram-note {
    margin-top: 4px;
    font-family: var(--font-sans);
    font-size: 11px;
    color: var(--text-muted);
}
.rc-diagram-canvas {
    overflow-x: auto;
    text-align: center;
}
.rc-diagram-canvas svg {
    max-width: 100%;
    height: auto;
}
.rc-diagram-tools {
    position: absolute;
    top: 6px;
    right: 6px;
    z-index: 1;
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity 120ms ease;
}
.mermaid[data-mermaid-src]:hover .rc-diagram-tools,
.rc-diagram-tools:focus-within { opacity: 1; }
/* Touch screens have no hover: keep the toolbar visible. */
@media (hover: none) {
    .rc-diagram-tools { opacity: 1; position: static; justify-content: flex-end; margin-bottom: 6px; }
}

/* ── Full-screen diagram view ─────────────────────────────────────────── */
.rc-overlay {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    background: var(--screen-scrim);
    animation: rc-fade 140ms ease-out;
}
.rc-overlay-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--panel);
    border-bottom: var(--border-w) solid var(--border);
}
.rc-overlay-title {
    flex: 1;
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
}
.rc-overlay-body {
    flex: 1;
    overflow: auto;
    margin: 16px;
    padding: 20px;
    background: var(--panel);
    border: var(--border-w) solid var(--border);
    border-radius: var(--radius);
    text-align: center;
}
.rc-overlay-body:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.rc-overlay-body svg { height: auto; }
html.rc-overlay-open { overflow: hidden; }

@keyframes rc-fade { from { opacity: 0; } to { opacity: 1; } }

.rc-overlay.rc-no-motion { animation: none; }

@media (prefers-reduced-motion: reduce) {
    .rc-overlay { animation: none; }
    .rc-diagram-tools { transition: none; }
}

@media (max-width: 520px) {
    .rc-overlay-body { margin: 8px; padding: 10px; }
    .rc-overlay-bar { padding: 8px 12px; }
    .md-code pre { padding: 8px 10px; }
}