/* The chat: a button at the foot of the page and the panel it opens. Colors and faces are the
   tokens', so the widget follows the theme where an image could not; the accent is --c-mid,
   what every control in the family is. The panel is a sheet on a phone, a card on a desk. */
.rbchat-open{position:fixed;right:max(1rem,env(safe-area-inset-right));bottom:max(1rem,env(safe-area-inset-bottom));z-index:60;
  display:inline-flex;align-items:center;gap:.5rem;padding:.6rem .95rem;border-radius:999px;
  border:1px solid var(--rule);background:var(--raise);color:var(--ink);cursor:pointer;
  font:inherit;font-size:.92rem;box-shadow:0 6px 24px var(--deck-drop)}
.rbchat-open svg{color:var(--c-mid)}
.rbchat-open:hover,.rbchat-open:focus-visible{border-color:var(--c-mid);outline:none}
.rbchat-open:focus-visible{box-shadow:0 0 0 3px var(--press)}
.rbchat{position:fixed;right:max(1rem,env(safe-area-inset-right));bottom:max(1rem,env(safe-area-inset-bottom));z-index:61;
  width:min(26rem,calc(100vw - 2rem));height:min(70vh,40rem);display:flex;flex-direction:column;
  background:var(--ground);color:var(--ink);border:1px solid var(--rule);border-radius:14px;
  box-shadow:0 18px 60px var(--deck-drop);overflow:hidden}
.rbchat[hidden]{display:none}
/* The corner that sizes the panel: the top left one, the only corner that can move while the
   panel stays pinned to the bottom right. It is the stage gutter's manners in a corner — drag,
   arrow keys when focused, double-click back to the default — and it shows the cursor a reader
   already reads as "pull me". */
.rbchat-grip{position:absolute;top:0;left:0;width:18px;height:18px;z-index:2;cursor:nwse-resize;
  border-top:2px solid var(--rule);border-left:2px solid var(--rule);border-top-left-radius:14px;
  background:none;touch-action:none}
.rbchat-grip:hover,.rbchat-grip.dragging{border-color:var(--c-mid)}
.rbchat-grip:focus-visible{outline:2px solid var(--c-mid);outline-offset:2px}
.rbchat-head{display:flex;align-items:center;gap:.4rem;padding:.75rem 1rem;border-bottom:1px solid var(--rule);background:var(--raise)}
.rbchat-head h2{margin:0;margin-right:auto;font-family:"Bricolage Grotesque",ui-sans-serif,system-ui,sans-serif;font-weight:700;letter-spacing:-.02em;font-size:1.05rem}
.rbchat-close{border:0;background:none;color:var(--dim);font-size:1.4rem;line-height:1;cursor:pointer;padding:.2rem .4rem;border-radius:6px}
/* Starting over, beside the way out and quieter than it: the same ink as the close cross, a
   plus rather than a word, and gone whenever there is no conversation to clear. */
.rbchat-new{border:0;background:none;color:var(--dim);line-height:0;cursor:pointer;padding:.3rem;border-radius:6px;margin-left:auto}
.rbchat-new[hidden]{display:none}
.rbchat-new:hover,.rbchat-new:focus-visible{color:var(--ink);outline:2px solid var(--c-mid);outline-offset:2px}
.rbchat-close:hover,.rbchat-close:focus-visible{color:var(--ink);outline:2px solid var(--c-mid);outline-offset:2px}
.rbchat-notice{margin:0;padding:.6rem 1rem;font-size:.8rem;line-height:1.4;color:var(--dim);border-bottom:1px solid var(--rule)}
.rbchat-notice code{font-family:"Plex Mono",ui-monospace,Menlo,monospace;font-size:.95em;color:var(--ink)}
.rbchat-notice a{color:var(--c-mid)}
.rbchat-log{flex:1;overflow-y:auto;padding:.75rem 1rem;display:flex;flex-direction:column;gap:.6rem;font-size:.95rem;line-height:1.5}
.rbchat-msg{max-width:92%;padding:.55rem .8rem;border-radius:12px;overflow-wrap:anywhere}
.rbchat-user{align-self:flex-end;background:var(--press);color:var(--ink);white-space:pre-wrap}
.rbchat-assistant{align-self:flex-start;background:var(--raise);border:1px solid var(--rule)}
.rbchat-refusal{align-self:center;color:var(--dim);font-size:.88rem;font-style:italic}
.rbchat-body p{margin:0 0 .6rem}.rbchat-body p:last-child{margin-bottom:0}
.rbchat-body ul,.rbchat-body ol{margin:0 0 .6rem 1.2rem;padding:0}
.rbchat-body code{font-family:"Plex Mono",ui-monospace,Menlo,monospace;font-size:.88em;background:var(--press);padding:.05em .3em;border-radius:4px}
.rbchat-body table{border-collapse:collapse;margin:.2rem 0 .6rem;font-size:.9em;display:block;overflow-x:auto;max-width:100%}
.rbchat-body th,.rbchat-body td{border:1px solid var(--rule);padding:.3rem .5rem;text-align:left;vertical-align:top}
.rbchat-body th{background:var(--press);font-weight:600}
.rbchat-wait{margin:0;color:var(--dim);font-style:italic}
.rbchat-wait::after{content:"";display:inline-block;width:1.2em;text-align:left;animation:rbchat-dots 1.2s steps(4,end) infinite}
@keyframes rbchat-dots{0%{content:""}25%{content:"."}50%{content:".."}75%{content:"..."}}
@media (prefers-reduced-motion:reduce){.rbchat-wait::after{animation:none;content:"\2026"}}
/* One link, the card's: a name or a cited title in the answer and a title on the line under it
   take the treatment of a card's model link, .cbody a.go in stage.css, because that is the
   nearest sibling, a body of prose linking into the model. Written in tokens, so both themes
   follow. Before this, a link in the body fell through to the browser's default. */
.rbchat-body a,.rbchat-cites a.rbchat-cite{color:var(--c-mid);text-decoration:none;border-bottom:1px solid var(--c-weak)}
.rbchat-body a:hover,.rbchat-body a:focus-visible,.rbchat-cites a.rbchat-cite:hover,.rbchat-cites a.rbchat-cite:focus-visible{border-bottom-color:var(--c-mid)}
.rbchat-cites{margin:.5rem 0 0;font-size:.82rem;line-height:1.7;color:var(--dim)}
/* The site's icon at the head of the line, once, and GitHub's mark after each title: quiet
   until pointed at, and both sized so the line stays one line on a phone. */
.rbchat-from{width:16px;height:16px;vertical-align:-3px;margin-right:.4rem}
.rbchat-gh{color:var(--dim);margin-left:.25rem;text-decoration:none;border:0}
.rbchat-gh svg{width:14px;height:14px;vertical-align:-2px}
.rbchat-gh:hover,.rbchat-gh:focus-visible{color:var(--ink);outline:none}
.rbchat-gh:focus-visible{box-shadow:0 0 0 2px var(--press)}
.rbchat-full{margin:0;padding:.5rem 1rem;font-size:.85rem;color:var(--dim);border-top:1px solid var(--rule);display:flex;justify-content:space-between;align-items:center;gap:.6rem}
.rbchat-full[hidden]{display:none}
.rbchat-fresh,.rbchat-send{font:inherit;font-size:.9rem;padding:.45rem .85rem;border-radius:8px;border:1px solid var(--c-mid);background:var(--c-mid);color:var(--ground);cursor:pointer}
.rbchat-fresh:disabled,.rbchat-send:disabled{opacity:.55;cursor:default}
.rbchat-form{display:flex;gap:.5rem;padding:.6rem 1rem;border-top:1px solid var(--rule);background:var(--raise)}
.rbchat-form textarea{flex:1;resize:none;font:inherit;font-size:.95rem;padding:.5rem .6rem;border-radius:8px;border:1px solid var(--rule);background:var(--ground);color:var(--ink)}
.rbchat-form textarea:focus-visible{outline:2px solid var(--c-mid);outline-offset:1px}
@media (max-width:600px){
  /* A phone's panel is the screen, so there is nothing to size and no corner to do it with;
     the width and height the grip may have written are overridden here rather than cleared,
     because a window that grows past this breakpoint should find the size still remembered. */
  .rbchat{right:0;bottom:0;width:100vw!important;height:100dvh!important;border-radius:0;border:0}
  .rbchat-grip{display:none}
}