/* ==========================================================================
   Reading room (components/eeg-records.js)

   A few minutes of drawn EEG read page by page, then a findings checklist
   checked against a key, with a model report. Built on the drawn-page styles
   (components/eeg-pages.css); this adds the history card, the paging bar and
   page strip, technologist notes, the ECG channel, and the report.
   ========================================================================== */

/* The host is a spot-check element only so the course reader counts the
   lesson complete when the answers are checked; it keeps none of that card's look. */
.atlas-quiz.rr-host,
body.dark .atlas-quiz.rr-host,
body.has-fundamentals-reader .page-eeg_lead_simulator .atlas-quiz.rr-host {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin: 0.75rem 0 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: none;
  max-width: none;
}
.rr-loading { margin: 0; font-size: 0.9375rem; color: var(--text-secondary); }

.rr { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; margin-top: 0.5rem; }
.rr > * { min-width: 0; }

.rr-history {
  padding: 0.9rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md, 10px);
  background: var(--surface-1);
}
.rr-kicker { margin: 0 0 0.5rem; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent-color); }
.rr-facts { display: grid; gap: 0.45rem; margin: 0; }
.rr-facts > div { display: grid; grid-template-columns: 7.5rem minmax(0, 1fr); gap: 0.75rem; }
.rr-facts dt { font-weight: 700; font-size: 0.875rem; color: var(--text-color); }
.rr-facts dd { margin: 0; font-size: 0.9375rem; line-height: 1.55; color: var(--text-color); }

.rr-steps { margin: 0; padding-left: 1.25rem; font-size: 0.9375rem; line-height: 1.55; color: var(--text-secondary); }
.rr-steps li + li { margin-top: 0.15rem; }

.rr-viewer {
  position: relative;
  padding: 0.85rem 0.95rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md, 10px);
  background: var(--surface-1);
  color: var(--text-color);
  --eegp-grid: #efebf3;
  --eegp-grid-major: #ddd6e5;
}
body.dark .rr-viewer { --eegp-grid: rgba(255, 255, 255, 0.07); --eegp-grid-major: rgba(255, 255, 255, 0.16); }
.rr-viewer:focus { outline: none; }
.rr-viewer:focus-visible { outline: 2px solid var(--accent-color); outline-offset: 2px; }

.rr-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem 1rem; margin-bottom: 0.4rem; }
.rr-gain { align-items: center; }
.rr-gain-label { font-size: 0.8125rem; font-weight: 600; color: var(--text-secondary); margin-right: 0.15rem; }

.rr-nav { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 0.5rem; margin: 0.25rem 0 0.5rem; }
.rr-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 40px;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--surface-1);
  color: var(--text-color);
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
}
.rr-nav-btn:hover:not(:disabled) { border-color: var(--accent-color); }
.rr-nav-btn:disabled { opacity: 0.45; cursor: default; }
.rr-nav-btn:focus-visible { outline: 2px solid var(--accent-color); outline-offset: 2px; }
.rr-where { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.15rem 0.6rem; margin: 0; font-size: 0.9375rem; font-variant-numeric: tabular-nums; }
.rr-where span { color: var(--text-secondary); }

.rr-strip { display: flex; gap: 3px; margin: 0 0 0.25rem; }
.rr-box {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  height: 16px;
  padding: 0;
  border: 1px solid var(--border-color);
  border-radius: 3px;
  background: var(--surface-1);
  cursor: pointer;
}
.rr-box.is-seen { background: rgba(var(--accent-rgb), 0.16); border-color: rgba(var(--accent-rgb), 0.35); }
.rr-box.is-current { background: var(--accent-color); border-color: var(--accent-color); }
.rr-box.has-note::after { content: ''; position: absolute; top: -5px; left: 50%; width: 4px; height: 4px; margin-left: -2px; border-radius: 50%; background: var(--text-secondary); }
.rr-box:focus-visible { outline: 2px solid var(--accent-color); outline-offset: 1px; }
.rr-seen { margin: 0 0 0.45rem; font-size: 0.8125rem; color: var(--text-secondary); }

.rr-viewer.is-scrolling .rr-swipe { display: block; }
.rr-synthetic { margin: 0.5rem 0 0; font-size: 0.75rem; color: var(--text-secondary); }

/* the findings checklist */
.rr-report { display: grid; gap: 0.6rem; }
.rr-h { margin: 0.25rem 0 0; font-size: 1.125rem; }
.rr-h4 { margin: 0; font-size: 1rem; }
.rr-note { margin: 0; font-size: 0.875rem; color: var(--text-secondary); }
.rr-form { display: grid; gap: 0.35rem; }

.rr-checklist { display: grid; gap: 0.6rem; }
.rr-q { margin: 0; padding: 0.7rem 0.8rem; border: 1px solid var(--border-color); border-radius: var(--radius-sm, 6px); }
.rr-q legend { padding: 0 0.3rem; font-weight: 700; font-size: 0.9375rem; }
.rr-q-n {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.4rem;
  height: 1.4rem;
  margin-right: 0.2rem;
  border-radius: 50%;
  background: rgba(var(--accent-rgb), 0.12);
  color: var(--accent-color);
  font-size: 0.75rem;
}
.rr-q-hint { font-weight: 500; font-size: 0.8125rem; color: var(--text-secondary); }
.rr-opts { display: flex; flex-wrap: wrap; gap: 0.4rem 0.5rem; margin-top: 0.35rem; }
.rr-opt {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 38px;
  padding: 0.3rem 0.75rem 0.3rem 0.55rem;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  font-size: 0.875rem;
  cursor: pointer;
}
.rr-opt:has(input:checked) { border-color: var(--accent-color); background: rgba(var(--accent-rgb), 0.08); }
.rr-opt input { accent-color: var(--accent-color); margin: 0; }
.rr-q.is-right { border-color: var(--br-ok-border, #9fd3b4); }
.rr-q.is-wrong { border-color: var(--br-bad-border, #e8b4b4); }
.rr-q-feedback { margin-top: 0.55rem; padding-top: 0.5rem; border-top: 1px solid var(--border-color); font-size: 0.875rem; line-height: 1.55; }
.rr-q-feedback p { margin: 0 0 0.3rem; }
.rr-verdict { font-weight: 700; }
.rr-q.is-right .rr-verdict { color: var(--br-ok, #1f7a4f); }
.rr-q.is-wrong .rr-verdict { color: var(--text-color); }
.rr-pages { color: var(--text-secondary); }
.rr-page-link {
  padding: 0.1rem 0;
  border: 0;
  background: none;
  color: var(--accent-color);
  font: inherit;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}

.rr-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; margin-top: 0.8rem; }
.rr-btn {
  min-height: 42px;
  padding: 0.45rem 1.05rem;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--surface-1);
  color: var(--text-color);
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 700;
  cursor: pointer;
}
.rr-btn-primary { border-color: var(--action-bg); background: var(--action-bg); color: var(--action-ink, #fff); }
.rr-btn:disabled { opacity: 0.55; cursor: default; }
.rr-btn[hidden] { display: none; }
.rr-status { margin: 0; font-size: 0.875rem; color: var(--text-secondary); }

.rr-result { display: grid; gap: 0.7rem; padding: 0.9rem 1rem; border: 1px solid var(--border-color); border-radius: var(--radius-md, 10px); background: var(--surface-1); }
.rr-result:focus { outline: none; }
.rr-result[hidden] { display: none; }
.rr-model { display: grid; gap: 0.75rem; }
.rr-model-row { padding-top: 0.6rem; border-top: 1px solid var(--border-color); }
.rr-label { margin: 0 0 0.2rem; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--text-secondary); }
.rr-text { margin: 0; font-size: 0.9375rem; line-height: 1.55; color: var(--text-color); }
.rr-teaching { margin: 0; padding: 0.65rem 0.8rem; border-left: 3px solid var(--accent-color); background: rgba(var(--accent-rgb), 0.06); font-size: 0.9375rem; line-height: 1.55; }

@media (max-width: 620px) {
  .rr-viewer { padding: 0.7rem 0.5rem 0.6rem; }
  .rr-facts > div { grid-template-columns: 1fr; gap: 0.1rem; }
  .rr-nav-btn span { display: none; }
  .rr-nav-btn { padding: 0.35rem 0.75rem; }
  .rr-strip { gap: 2px; }
}