Files
learning-platform/src/components/chat/chat.css
RaymondVerhoef 85452f66a7 feat(r42): improve KB grounding accuracy and add clear-history
R42 was missing knowledge-graph information (e.g. pension questions)
because retrieval and context-building dropped relevant facts:

- retrieval: exact-token TF-IDF could not match Dutch compound words,
  so a "pensioen" query scored 0 against "pensioenregeling" /
  "partnerpensioen" and never retrieved them. Add a compound-word
  fallback (shared >=6-char stem or containment, 0.4x weight) alongside
  exact matching.
- rag: deep article content was only injected for verbatim-mentioned
  topics; retrieved topics contributed just a 200-char description.
  Inject ~1000 chars of content for up to 5 topics (mentions first,
  then top-ranked retrieved) and widen the description snippet to 320.
- prompts: add a NAUWKEURIGHEID block (use all relevant facts, call
  lookup_topic before giving up) and relax the 4-sentence cap for
  detail/list answers so complete facts aren't summarised away.

Also add a clear-history control: a trash button in the chat header
(confirm dialog) wipes chat🧵{userId} and reseeds the greeting
via clearThread() in useChat.

Tests: compound-word matching + rag deep-content injection. Spec updated.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-13 14:25:08 +02:00

251 lines
5.8 KiB
CSS

/* R42 chatbot — FAB + chat window */
.r42-fab {
position: fixed;
right: 24px;
bottom: 80px;
width: 64px;
height: 64px;
border-radius: var(--r-pill);
background: var(--teal-900);
display: grid;
place-items: center;
box-shadow: var(--shadow-pill);
cursor: pointer;
transition: transform 0.2s ease, box-shadow 0.2s ease;
border: 2px solid var(--cream);
z-index: 60;
padding: 0;
}
.r42-fab:hover { transform: translateY(-2px); }
.r42-fab:focus-visible {
outline: 2px solid var(--purple);
outline-offset: 3px;
}
.r42-fab.open {
bottom: calc(80px + 480px - 56px);
width: 48px;
height: 48px;
}
@media (min-width: 768px) {
.r42-fab { bottom: 24px; }
.r42-fab.open { bottom: calc(24px + 480px - 56px); }
}
.r42-window {
position: fixed;
right: 24px;
bottom: 80px;
width: min(380px, calc(100vw - 32px));
height: min(480px, calc(100vh - 120px));
background: var(--paper);
border-radius: var(--r-md);
border: 1px solid rgba(31, 85, 96, 0.06);
box-shadow: var(--shadow-pill);
display: flex;
flex-direction: column;
overflow: hidden;
z-index: 60;
}
@media (min-width: 768px) {
.r42-window { bottom: 24px; }
}
.r42-window-hd {
background: var(--teal-900);
color: var(--cream);
padding: var(--s-3) var(--s-4);
display: flex;
align-items: center;
gap: var(--s-3);
flex-shrink: 0;
}
.r42-window-hd .av {
width: 36px;
height: 36px;
border-radius: var(--r-pill);
background: var(--teal);
display: grid;
place-items: center;
flex-shrink: 0;
}
.r42-window-hd-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.r42-window-hd-name { font: 600 14px/1 var(--font-sans); }
.r42-window-hd-status {
font: 500 var(--t-label)/1 var(--font-mono);
letter-spacing: var(--label-ls);
text-transform: uppercase;
color: rgba(236, 233, 233, 0.6);
display: flex;
align-items: center;
gap: 6px;
}
.r42-window-hd-status i {
width: 5px;
height: 5px;
border-radius: 999px;
background: var(--sage);
}
.r42-window-hd-actions {
margin-left: auto;
display: flex;
align-items: center;
gap: 2px;
}
.r42-window-hd-x {
color: rgba(236, 233, 233, 0.7);
background: transparent;
border: none;
font-size: 22px;
line-height: 1;
cursor: pointer;
padding: 4px 8px;
border-radius: var(--r-sm);
}
.r42-window-hd-x:hover { background: rgba(236, 233, 233, 0.1); }
.r42-window-hd-clear {
color: rgba(236, 233, 233, 0.7);
background: transparent;
border: none;
cursor: pointer;
padding: 6px;
border-radius: var(--r-sm);
display: grid;
place-items: center;
}
.r42-window-hd-clear:hover { background: rgba(236, 233, 233, 0.1); }
.r42-window-hd-clear:disabled { opacity: 0.4; cursor: default; }
.r42-window-body {
flex: 1;
padding: var(--s-4);
background: var(--cream);
display: flex;
flex-direction: column;
gap: var(--s-3);
overflow-y: auto;
}
.r42-msg { display: flex; gap: var(--s-2); align-items: flex-end; }
.r42-msg .av-sm {
width: 26px;
height: 26px;
border-radius: var(--r-pill);
background: var(--teal-900);
display: grid;
place-items: center;
flex-shrink: 0;
}
.r42-msg .bub {
background: var(--paper);
border-radius: 16px 16px 16px 4px;
padding: 10px 14px;
font: 400 14px/1.45 var(--font-sans);
color: var(--ink);
max-width: 250px;
border: 1px solid rgba(31, 85, 96, 0.06);
word-wrap: break-word;
}
.r42-msg.me { justify-content: flex-end; }
.r42-msg.me .bub {
background: var(--teal);
color: var(--cream);
border: none;
border-radius: 16px 16px 4px 16px;
}
.r42-msg.error .bub {
background: #fee2e2;
color: #991b1b;
border: 1px solid #fecaca;
}
.r42-suggestion {
margin-top: var(--s-2);
padding: 10px 12px;
background: rgba(92, 29, 216, 0.08);
border: 1px solid rgba(92, 29, 216, 0.2);
border-radius: var(--r-sm);
font: 400 13px/1.4 var(--font-sans);
color: var(--ink);
}
.r42-suggestion-title {
font-weight: 600;
color: var(--purple);
margin-bottom: 6px;
display: flex;
align-items: center;
gap: 4px;
}
.r42-suggestion-items {
margin: 6px 0 10px;
padding-left: 16px;
list-style: disc;
}
.r42-suggestion-items li { margin: 2px 0; }
.r42-suggestion-actions {
display: flex;
gap: 6px;
}
.r42-suggestion-actions button {
flex: 1;
padding: 6px 10px;
border-radius: var(--r-pill);
border: 1px solid rgba(92, 29, 216, 0.3);
font: 600 12px/1 var(--font-sans);
cursor: pointer;
background: var(--paper);
color: var(--purple);
transition: background 0.15s ease, color 0.15s ease;
}
.r42-suggestion-actions button.primary {
background: var(--purple);
color: var(--cream);
border-color: var(--purple);
}
.r42-suggestion-actions button.primary:hover { background: var(--purple-700); }
.r42-suggestion-actions button:not(.primary):hover { background: rgba(92, 29, 216, 0.1); }
.r42-suggestion-status {
margin-top: 6px;
font: 500 11px/1 var(--font-mono);
letter-spacing: var(--label-ls);
text-transform: uppercase;
color: var(--fg-muted);
}
.r42-window-input {
padding: var(--s-3) var(--s-4);
background: var(--paper);
border-top: 1px solid rgba(31, 85, 96, 0.06);
display: flex;
align-items: center;
gap: var(--s-2);
flex-shrink: 0;
}
.r42-window-input input {
flex: 1;
background: var(--cream);
border: none;
outline: none;
border-radius: var(--r-pill);
padding: 10px 14px;
font: 400 14px/1 var(--font-sans);
color: var(--ink);
min-width: 0;
}
.r42-window-input input::placeholder { color: rgba(60, 58, 58, 0.4); }
.r42-window-input input:disabled { opacity: 0.5; }
.r42-window-input button {
background: var(--purple);
color: var(--cream);
border: none;
border-radius: var(--r-pill);
padding: 10px 18px;
font: 600 13px/1 var(--font-sans);
cursor: pointer;
transition: background 0.15s ease;
flex-shrink: 0;
}
.r42-window-input button:hover:not(:disabled) { background: var(--purple-700); }
.r42-window-input button:disabled { opacity: 0.4; cursor: not-allowed; }