/* =============================================================================
   REPORT SLIDES AND THE OVERVIEW (release 22) — common/components/report/slides/.

   Plain CSS, imported by every app that shows an article as slides (export,
   umtool) right after its tokens, and inlined whole into `slides.html`. It is
   NOT in a Tailwind layer, so it wins over a utility a shared component (the
   markdown's paragraphs, a verdict chip) carries inside a slide.

   COLOUR comes from the host's tokens through `--rs-*`, set on `.rs-root`
   below from the site's (tokens.css: the base in force and the site's
   accent); umtool's globals.css points them at its own palette. A slide's
   MARK (`--rs-mark`, set inline) is the colour of what it says: a claim's
   verdict, else the accent. It runs down the slide's left edge, so a deck
   read quickly still reads its rulings.

   THE CANVAS is 1280 × 720 design pixels, scaled as one piece to fit its
   stage (`data-fit="canvas"`). A narrow portrait screen reflows the same
   slide instead (`data-fit="reflow"`): readable type, the evidence under the
   words.
   ========================================================================== */

.rs-root {
  --rs-ground: var(--surface, #e8edef);
  --rs-paper: var(--card, #ffffff);
  --rs-ink: var(--foreground, #161c21);
  --rs-muted: var(--muted-foreground, #55646e);
  --rs-faint: var(--faint, #78868f);
  --rs-line: var(--border, #d2dade);
  --rs-line-strong: var(--border-strong, #aeb9c0);
  --rs-accent: var(--brand, #2f7d74);
  --rs-accent-soft: var(--brand-soft, rgba(47, 125, 116, 0.12));
  --rs-focus: var(--ring, var(--rs-accent));
  --rs-display: var(--font-display, ui-sans-serif), ui-sans-serif, system-ui, sans-serif;
  --rs-sans: var(--font-sans, ui-sans-serif), ui-sans-serif, system-ui, sans-serif;
  --rs-mono: var(--font-mono, ui-monospace), ui-monospace, "SF Mono", Menlo, monospace;
  --rs-shadow: 0 1px 2px rgb(0 0 0 / 0.06), 0 12px 32px -12px rgb(0 0 0 / 0.22);
}

/* ─── The slide (canvas) ─────────────────────────────────────────────────── */

.rs-slide {
  --rs-mark: var(--rs-accent);
  position: relative;
  box-sizing: border-box;
  width: 1280px;
  height: 720px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 28px;
  padding: 48px 72px 36px 104px;
  overflow: hidden;
  background: var(--rs-paper);
  color: var(--rs-ink);
  font-family: var(--rs-sans);
  font-size: 24px;
  line-height: 1.35;
  text-align: left;
  border-radius: 12px;
}
.rs-slide *,
.rs-slide *::before,
.rs-slide *::after {
  box-sizing: border-box;
}

/* The mark: the slide's left edge, in the colour of what it says. */
.rs-band {
  position: absolute;
  inset: 0 auto 0 0;
  width: 18px;
  background: var(--rs-mark);
}
.rs-band::after {
  /* where the band meets the paper: a hairline of the mark, lighter */
  content: "";
  position: absolute;
  inset: 0 -6px 0 auto;
  width: 6px;
  background: color-mix(in oklab, var(--rs-mark) 22%, transparent);
}

.rs-eyebrow {
  display: flex;
  align-items: baseline;
  gap: 24px;
  margin: 0;
  font-family: var(--rs-mono);
  font-size: 15px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--rs-muted);
}
.rs-eyebrow-place {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.rs-eyebrow-place b {
  font-weight: 600;
  color: var(--rs-mark);
}
.rs-eyebrow-n {
  margin-left: auto;
  flex: none;
  letter-spacing: 0.08em;
  color: var(--rs-faint);
  font-variant-numeric: tabular-nums;
}

.rs-main {
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 24px;
}

.rs-foot {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 16px;
  color: var(--rs-faint);
}
.rs-foot-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--rs-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
}
.rs-read {
  margin-left: auto;
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--rs-accent);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: color-mix(in oklab, var(--rs-accent) 40%, transparent);
  text-underline-offset: 4px;
  border-radius: 4px;
}
.rs-read:hover {
  text-decoration-color: var(--rs-accent);
}
.rs-read:focus-visible,
.rs-slide a:focus-visible,
.rs-slide button:focus-visible {
  outline: 3px solid var(--rs-focus);
  outline-offset: 3px;
}

/* ─── Type ───────────────────────────────────────────────────────────────── */

.rs-h {
  margin: 0;
  font-family: var(--rs-display);
  font-stretch: 112%;
  font-weight: 650;
  font-size: 54px;
  line-height: 1.1;
  letter-spacing: -0.012em;
  /* room for the last line's descenders under the clamp */
  padding-bottom: 0.08em;
  overflow-wrap: anywhere;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  overflow: hidden;
}
.rs-h-sm {
  font-size: 42px;
}
.rs-sub {
  margin: 0;
  font-size: 26px;
  line-height: 1.3;
  color: var(--rs-muted);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  overflow: hidden;
}
.rs-claimtext {
  margin: 0;
  padding-left: 18px;
  border-left: 3px solid var(--rs-line-strong);
  font-size: 24px;
  font-style: italic;
  color: var(--rs-muted);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  overflow: hidden;
}
.rs-statement {
  margin: 0;
  font-size: 34px;
  line-height: 1.32;
  max-width: 30em;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 7;
  line-clamp: 7;
  overflow: hidden;
}
.rs-gist {
  margin: 0;
  font-size: 28px;
  line-height: 1.32;
}

/* Markdown inside a slide: a run of text, never a block with its own margins. */
.rs-md p,
.rs-md div {
  margin: 0;
  line-height: inherit;
}
.rs-md p + p {
  margin-top: 0.5em;
}

/* Points: the slide's own words. A short bar in the mark leads each. */
.rs-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-size: 30px;
  line-height: 1.28;
}
.rs-points > li {
  position: relative;
  padding-left: 40px;
}
.rs-points > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 22px;
  height: 4px;
  border-radius: 2px;
  background: var(--rs-mark);
}

/* A verdict chip (VerdictChip), at slide scale — whole here, so a slide needs
   no utility classes (slides.html has none). */
.rs-chip [data-verdict-tally] {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.rs-chip [data-verdict] {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 6px 18px;
  border: 2px solid var(--verdict);
  border-radius: 999px;
  background: color-mix(in oklab, var(--verdict) 14%, transparent);
  color: var(--rs-ink);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
}
.rs-chip [data-verdict] > span:first-child {
  display: block;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--verdict);
}
.rs-chip [data-verdict] > span:last-child:not(:first-child) {
  font-family: var(--rs-mono);
  color: var(--rs-muted);
}
.rs-root .sr-only,
.rs-slide .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.rs-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}
.rs-flag {
  display: inline-flex;
  align-items: center;
  padding: 5px 16px;
  border: 2px solid color-mix(in oklab, var(--rs-accent) 45%, transparent);
  border-radius: 999px;
  background: var(--rs-accent-soft);
  color: var(--rs-accent);
  font-size: 18px;
  font-weight: 600;
}

/* Two columns: the words, the evidence. */
.rs-split {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 56px;
  align-items: center;
}
.rs-col {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

/* ─── Evidence ───────────────────────────────────────────────────────────── */

.rs-ev {
  min-width: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.rs-ev-pic {
  display: block;
  width: 100%;
  max-height: 330px;
  object-fit: contain;
  object-position: left top;
  border: 1px solid var(--rs-line);
  border-radius: 8px;
  background: var(--rs-ground);
}
.rs-ev-pic[data-kind="source"] {
  background: #ffffff;
}
.rs-ev-quote {
  margin: 0;
  padding-left: 20px;
  border-left: 4px solid var(--rs-ev-rail, var(--rs-line-strong));
  font-size: 24px;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 5;
  line-clamp: 5;
  overflow: hidden;
}
.rs-ev-cap {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 17px;
  color: var(--rs-muted);
}
.rs-ev-kind {
  font-family: var(--rs-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--rs-faint);
}
.rs-ev-title {
  color: var(--rs-ink);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* The pull quote: the evidence's own words, large. */
.rs-pull {
  margin: 0;
  position: relative;
  padding-left: 64px;
  font-family: var(--rs-display);
  font-weight: 500;
  font-size: 50px;
  line-height: 1.14;
  letter-spacing: -0.01em;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 5;
  line-clamp: 5;
  overflow: hidden;
}
.rs-pull::before {
  content: "“";
  position: absolute;
  left: 0;
  top: -0.12em;
  font-size: 1.9em;
  line-height: 1;
  color: var(--rs-mark);
}

/* ─── Kinds ──────────────────────────────────────────────────────────────── */

.rs-title-series {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: var(--rs-display);
  font-stretch: 112%;
  font-weight: 650;
  font-size: 30px;
  color: var(--rs-accent);
}
.rs-title-series::before {
  content: "";
  width: 56px;
  height: 6px;
  border-radius: 3px;
  background: var(--rs-accent);
}
.rs-title-h {
  font-size: 76px;
  line-height: 1.08;
}
.rs-dates {
  margin: 0;
  font-family: var(--rs-mono);
  font-size: 17px;
  color: var(--rs-faint);
}
.rs-subject {
  max-width: 820px;
  padding: 14px 22px;
  border-left: 6px solid var(--rs-subject, var(--rs-line-strong));
  border-radius: 0 8px 8px 0;
  background: var(--rs-ground);
  font-size: 20px;
}
.rs-subject b {
  display: block;
  font-weight: 600;
}
.rs-subject span {
  color: var(--rs-muted);
  font-size: 17px;
}

.rs-found {
  display: grid;
  grid-template-columns: repeat(var(--rs-cols, 3), minmax(0, 1fr));
  gap: 22px;
  align-items: start;
}
.rs-found-group {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 16px;
  border-top: 5px solid var(--rs-verdict, var(--rs-line-strong));
}
.rs-found-n {
  font-family: var(--rs-display);
  font-weight: 650;
  font-size: 64px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.rs-found-label {
  font-weight: 600;
  font-size: 22px;
}
.rs-found-claims {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 18px;
  line-height: 1.3;
  color: var(--rs-muted);
}
.rs-found-claims li {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}

.rs-claimlist {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 26px;
}
.rs-claimlist li {
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.rs-claimlist i {
  flex: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--rs-verdict, var(--rs-line-strong));
  transform: translateY(-2px);
}

.rs-figures {
  display: flex;
  gap: 64px;
}
.rs-figure b {
  display: block;
  font-family: var(--rs-display);
  font-weight: 650;
  font-size: 88px;
  line-height: 1;
  color: var(--rs-ink);
  font-variant-numeric: tabular-nums;
}
.rs-figure span {
  font-family: var(--rs-mono);
  font-size: 16px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rs-muted);
}
.rs-url {
  font-family: var(--rs-mono);
  font-size: 20px;
  color: var(--rs-accent);
  overflow-wrap: anywhere;
}

/* ─── The reflowed slide (a narrow portrait screen) ──────────────────────── */

.rs-slide[data-fit="reflow"] {
  width: 100%;
  height: auto;
  min-height: 100%;
  gap: 18px;
  padding: 22px 18px 18px 34px;
  font-size: 16px;
  border-radius: 10px;
}
.rs-slide[data-fit="reflow"] .rs-band {
  width: 10px;
}
.rs-slide[data-fit="reflow"] .rs-band::after {
  width: 4px;
  inset: 0 -4px 0 auto;
}
.rs-slide[data-fit="reflow"] .rs-eyebrow {
  font-size: 11px;
  gap: 12px;
}
.rs-slide[data-fit="reflow"] .rs-main {
  justify-content: flex-start;
  gap: 16px;
}
.rs-slide[data-fit="reflow"] .rs-h {
  font-size: 28px;
  -webkit-line-clamp: unset;
  line-clamp: none;
}
.rs-slide[data-fit="reflow"] .rs-title-h {
  font-size: 34px;
}
.rs-slide[data-fit="reflow"] .rs-title-series {
  font-size: 18px;
  gap: 10px;
}
.rs-slide[data-fit="reflow"] .rs-title-series::before {
  width: 28px;
  height: 4px;
}
.rs-slide[data-fit="reflow"] .rs-sub,
.rs-slide[data-fit="reflow"] .rs-claimtext,
.rs-slide[data-fit="reflow"] .rs-statement,
.rs-slide[data-fit="reflow"] .rs-ev-quote,
.rs-slide[data-fit="reflow"] .rs-pull,
.rs-slide[data-fit="reflow"] .rs-found-claims li {
  -webkit-line-clamp: unset;
  line-clamp: none;
}
.rs-slide[data-fit="reflow"] .rs-sub {
  font-size: 17px;
}
.rs-slide[data-fit="reflow"] .rs-claimtext {
  font-size: 16px;
  padding-left: 12px;
}
.rs-slide[data-fit="reflow"] .rs-statement {
  font-size: 19px;
}
.rs-slide[data-fit="reflow"] .rs-gist {
  font-size: 18px;
}
.rs-slide[data-fit="reflow"] .rs-points {
  font-size: 18px;
  gap: 12px;
}
.rs-slide[data-fit="reflow"] .rs-points > li {
  padding-left: 26px;
}
.rs-slide[data-fit="reflow"] .rs-points > li::before {
  width: 14px;
  height: 3px;
}
.rs-slide[data-fit="reflow"] .rs-split {
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}
.rs-slide[data-fit="reflow"] .rs-pull {
  font-size: 24px;
  padding-left: 34px;
}
.rs-slide[data-fit="reflow"] .rs-ev-quote {
  font-size: 16px;
}
.rs-slide[data-fit="reflow"] .rs-ev-cap {
  font-size: 13px;
}
.rs-slide[data-fit="reflow"] .rs-chip [data-verdict] {
  font-size: 14px;
  padding: 3px 12px;
  gap: 8px;
}
.rs-slide[data-fit="reflow"] .rs-chip [data-verdict] > span:first-child {
  width: 10px;
  height: 10px;
}
.rs-slide[data-fit="reflow"] .rs-flag {
  font-size: 13px;
  padding: 3px 10px;
}
.rs-slide[data-fit="reflow"] .rs-found {
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}
.rs-slide[data-fit="reflow"] .rs-found-n {
  font-size: 34px;
}
.rs-slide[data-fit="reflow"] .rs-found-label {
  font-size: 16px;
}
.rs-slide[data-fit="reflow"] .rs-found-claims {
  font-size: 14px;
}
.rs-slide[data-fit="reflow"] .rs-claimlist {
  font-size: 17px;
}
.rs-slide[data-fit="reflow"] .rs-claimlist i {
  width: 10px;
  height: 10px;
}
.rs-slide[data-fit="reflow"] .rs-subject {
  font-size: 15px;
  padding: 10px 14px;
}
.rs-slide[data-fit="reflow"] .rs-subject span,
.rs-slide[data-fit="reflow"] .rs-dates {
  font-size: 13px;
}
.rs-slide[data-fit="reflow"] .rs-figures {
  gap: 32px;
}
.rs-slide[data-fit="reflow"] .rs-figure b {
  font-size: 44px;
}
.rs-slide[data-fit="reflow"] .rs-figure span {
  font-size: 11px;
}
.rs-slide[data-fit="reflow"] .rs-url {
  font-size: 14px;
}
.rs-slide[data-fit="reflow"] .rs-foot {
  font-size: 14px;
  flex-wrap: wrap;
  gap: 8px 16px;
}
.rs-slide[data-fit="reflow"] .rs-foot-name {
  font-size: 11px;
}
.rs-slide[data-fit="reflow"] .rs-ev-pic {
  max-height: none;
}
.rs-slide[data-fit="reflow"] .rs-ev-title {
  white-space: normal;
}

/* ─── The stage: one slide letterboxed, the controls, the rail ───────────── */

.rs-stage {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  background: var(--rs-ground);
  color: var(--rs-ink);
  outline: none;
}
.rs-viewport {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px 24px 8px;
  overflow: hidden;
  touch-action: pan-y;
}
.rs-viewport[data-fit="reflow"] {
  align-items: stretch;
  justify-content: stretch;
  padding: 12px 12px 4px;
  overflow-y: auto;
}
.rs-scaled {
  position: relative;
  flex: none;
  border-radius: 12px;
  box-shadow: var(--rs-shadow);
}
.rs-scaled > .rs-slide {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: 0 0;
}
.rs-viewport[data-fit="reflow"] .rs-scaled {
  width: 100%;
  min-height: 100%;
}
.rs-viewport[data-fit="reflow"] .rs-scaled > .rs-slide {
  position: relative;
}

@keyframes rs-enter-next {
  from {
    opacity: 0;
    translate: 24px 0;
  }
}
@keyframes rs-enter-prev {
  from {
    opacity: 0;
    translate: -24px 0;
  }
}
.rs-scaled[data-dir="next"] {
  animation: rs-enter-next 220ms cubic-bezier(0.22, 1, 0.36, 1);
}
.rs-scaled[data-dir="prev"] {
  animation: rs-enter-prev 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.rs-controls {
  flex: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 16px 10px;
}
.rs-label {
  flex: 1 1 auto;
  min-width: 0;
  text-align: center;
  font-size: 13px;
  color: var(--rs-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.rs-label b {
  font-family: var(--rs-mono);
  font-weight: 500;
  color: var(--rs-ink);
  font-variant-numeric: tabular-nums;
}
.rs-btn {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 44px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid var(--rs-line);
  border-radius: 999px;
  background: var(--rs-paper);
  color: var(--rs-ink);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
.rs-btn:hover:not(:disabled) {
  border-color: var(--rs-accent);
  color: var(--rs-accent);
}
.rs-btn[aria-pressed="true"] {
  border-color: var(--rs-accent);
  background: var(--rs-accent-soft);
  color: var(--rs-accent);
}
.rs-btn:disabled {
  opacity: 0.4;
  cursor: default;
}
.rs-btn:focus-visible,
.rs-rail button:focus-visible,
.rs-switch button:focus-visible {
  outline: 2px solid var(--rs-focus);
  outline-offset: 2px;
}

/* The progress rail: one tick per slide, the passed ones in the accent. */
.rs-rail {
  flex: none;
  display: flex;
  gap: 3px;
  padding: 0 16px 12px;
}
.rs-rail button {
  flex: 1 1 0;
  min-width: 0;
  height: 14px;
  padding: 5px 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.rs-rail button::before {
  content: "";
  display: block;
  height: 4px;
  border-radius: 2px;
  background: var(--rs-line);
  transition: background 160ms;
}
.rs-rail button[data-state="past"]::before {
  background: color-mix(in oklab, var(--rs-accent) 55%, var(--rs-line));
}
.rs-rail button[data-state="current"]::before {
  background: var(--rs-accent);
}
.rs-rail button:hover::before {
  background: var(--rs-ink);
}

/* ─── The overview: the article and its slides, pair by pair ─────────────── */

.rs-ov {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  background: var(--rs-ground);
  color: var(--rs-ink);
  outline: none;
}
.rs-ov-tools {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  padding: 10px 16px 0;
}
.rs-ov-hint {
  margin: 0;
  font-size: 12px;
  color: var(--rs-muted);
}
.rs-ov-hint kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 0 4px;
  border: 1px solid var(--rs-line);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--rs-paper);
  font-family: var(--rs-mono);
  font-size: 11px;
  text-align: center;
}
.rs-ov-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  container: rs-ov / inline-size;
}
.rs-ov-sizer {
  position: relative;
  margin: 0 auto;
}
.rs-ov-plane {
  margin: 0 auto;
  padding: 24px 16px 48px;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
  width: max-content;
  max-width: 100%;
}
.rs-ov-pair {
  display: grid;
  grid-template-columns: 360px 88px 300px;
  align-items: stretch;
  border-radius: 10px;
}

/* The article side: the page, in blocks that run on from one another. */
.rs-ov-block {
  position: relative;
  min-width: 0;
  border: 1px solid var(--rs-line);
  border-radius: 8px;
  background: var(--rs-paper);
  transition: border-color 160ms, box-shadow 160ms, transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}
.rs-ov-face {
  --rs-mark: var(--rs-line-strong);
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px 14px 20px;
  border-left: 4px solid var(--rs-mark);
  border-radius: 8px 0 0 8px;
  overflow: hidden;
}
.rs-ov-face[data-kind="title"],
.rs-ov-face[data-kind="section"] {
  --rs-mark: var(--rs-accent);
}
.rs-ov-kind {
  font-family: var(--rs-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rs-faint);
}
.rs-ov-kind b {
  font-weight: 600;
  color: var(--rs-mark);
}
.rs-ov-title {
  font-family: var(--rs-display);
  font-stretch: 112%;
  font-weight: 600;
  font-size: 16px;
  line-height: 1.2;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}
.rs-ov-face[data-kind="title"] .rs-ov-title,
.rs-ov-face[data-kind="section"] .rs-ov-title {
  font-size: 19px;
}
.rs-ov-line {
  font-size: 13px;
  line-height: 1.4;
  color: var(--rs-muted);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  overflow: hidden;
}

/* The line between a part and its slide. */
.rs-ov-link {
  position: relative;
  align-self: center;
  height: 2px;
  margin: 0 6px;
  background: repeating-linear-gradient(90deg, var(--rs-line-strong) 0 6px, transparent 6px 11px);
  transition: background 160ms;
}
.rs-ov-link::before,
.rs-ov-link::after {
  content: "";
  position: absolute;
  top: -4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--rs-paper);
  border: 2px solid var(--rs-line-strong);
}
.rs-ov-link::before {
  left: -6px;
}
.rs-ov-link::after {
  right: -6px;
}

/* The slide side: the slide itself, small. */
.rs-ov-card {
  position: relative;
  width: 300px;
  height: 168.75px;
  border-radius: 8px;
  background: var(--rs-paper);
  box-shadow: 0 0 0 1px var(--rs-line);
  transition: box-shadow 160ms, transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}
.rs-ov-thumb {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border-radius: 8px;
  pointer-events: none;
}
.rs-ov-thumb > .rs-slide {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: 0 0;
  border-radius: 0;
}

/* Each side is one button laid over it. */
.rs-ov-block > button,
.rs-ov-card > button {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}
.rs-ov-block > button:focus-visible,
.rs-ov-card > button:focus-visible {
  outline: 3px solid var(--rs-focus);
  outline-offset: 3px;
}

/* A pair lit: pointed at, or the reader's place. */
.rs-ov-pair:is(:hover, :focus-within, [data-active="true"]) .rs-ov-block {
  border-color: var(--rs-accent);
  box-shadow: 0 0 0 1px var(--rs-accent), var(--rs-shadow);
}
.rs-ov-pair:is(:hover, :focus-within, [data-active="true"]) .rs-ov-card {
  box-shadow: 0 0 0 2px var(--rs-accent), var(--rs-shadow);
}
.rs-ov-pair:is(:hover, :focus-within, [data-active="true"]) .rs-ov-link {
  background: var(--rs-accent);
}
.rs-ov-pair:is(:hover, :focus-within, [data-active="true"]) .rs-ov-link::before,
.rs-ov-pair:is(:hover, :focus-within, [data-active="true"]) .rs-ov-link::after {
  border-color: var(--rs-accent);
  background: var(--rs-accent);
}

/* TILTED: one plane, rotated isometrically; the pair in force lifts off it. */
.rs-ov[data-report-overview="iso"] .rs-ov-plane {
  position: absolute;
  left: 0;
  top: 0;
  margin: 0;
  max-width: none;
  padding: 28px;
  border-radius: 18px;
  background:
    linear-gradient(var(--rs-line) 1px, transparent 1px) 0 0 / 100% 48px,
    color-mix(in oklab, var(--rs-paper) 55%, var(--rs-ground));
  box-shadow: 0 0 0 1px var(--rs-line);
  transform-origin: 0 0;
  transform-style: preserve-3d;
}
.rs-ov[data-report-overview="iso"] .rs-ov-pair {
  transform-style: preserve-3d;
}
.rs-ov[data-report-overview="iso"] .rs-ov-pair:is(:hover, :focus-within, [data-active="true"]) .rs-ov-block,
.rs-ov[data-report-overview="iso"] .rs-ov-pair:is(:hover, :focus-within, [data-active="true"]) .rs-ov-card {
  transform: translateZ(22px);
}
.rs-ov[data-report-overview="iso"] .rs-ov-scroll {
  background: radial-gradient(ellipse at 50% 40%, color-mix(in oklab, var(--rs-accent) 7%, transparent), transparent 70%);
}

/* FLAT, in a narrow box: each pair stacked, the part over its slide. */
@container rs-ov (max-width: 780px) {
  .rs-ov[data-report-overview="flat"] .rs-ov-plane {
    width: auto;
    gap: 22px;
  }
  .rs-ov[data-report-overview="flat"] .rs-ov-pair {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
    justify-items: start;
  }
  .rs-ov[data-report-overview="flat"] .rs-ov-block {
    width: 100%;
  }
  .rs-ov[data-report-overview="flat"] .rs-ov-link {
    display: none;
  }
}
@media (max-width: 720px) {
  .rs-ov-hint {
    display: none;
  }
}

/* ─── The view switch: Article | Slides | Overview ───────────────────────── */

.rs-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--rs-line);
  border-radius: 999px;
  background: var(--rs-ground);
  font-family: var(--rs-sans);
}
.rs-switch button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 30px;
  padding: 0 14px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--rs-muted);
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 140ms, color 140ms;
}
.rs-switch button:hover {
  color: var(--rs-ink);
}
.rs-switch button[aria-pressed="true"] {
  background: var(--rs-paper);
  color: var(--rs-ink);
  box-shadow: 0 1px 2px rgb(0 0 0 / 0.12), inset 0 0 0 1px var(--rs-line);
}
.rs-switch button[aria-pressed="true"] svg {
  color: var(--rs-accent);
}
.rs-switch svg {
  width: 15px;
  height: 15px;
  flex: none;
}

/* ─── The reader's overlay (the export site) ─────────────────────────────── */

.rs-overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  flex-direction: column;
  background: var(--rs-ground);
  color: var(--rs-ink);
}
.rs-bar {
  flex: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  padding-top: max(10px, env(safe-area-inset-top, 0px));
  border-bottom: 1px solid var(--rs-line);
  background: var(--rs-paper);
}
.rs-bar-title {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--rs-display);
  font-stretch: 112%;
  font-weight: 600;
  font-size: 15px;
}
.rs-bar-title span {
  color: var(--rs-accent);
}
.rs-overlay-body {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.rs-note {
  margin: auto;
  padding: 24px;
  text-align: center;
  color: var(--rs-muted);
}
@media (max-width: 560px) {
  .rs-bar-title {
    display: none;
  }
  .rs-bar {
    justify-content: space-between;
  }
  .rs-btn-text {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .rs-scaled[data-dir] {
    animation: none;
  }
  .rs-rail button::before,
  .rs-switch button,
  .rs-ov-block,
  .rs-ov-card,
  .rs-ov-link {
    transition: none;
  }
}

/* ─── Hosts' small parts ─────────────────────────────────────────────────── */

/* Markdown a host renders with its own classes (umtool's) takes the slide's
   type, not the host's body size. */
.rs-md > div,
.rs-md > div > div {
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}
/* A citation as a button (umtool: it opens the evidence rail). */
.rs-cite {
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  text-decoration: underline;
  text-decoration-style: dotted;
  text-decoration-color: var(--rs-accent);
  text-underline-offset: 4px;
  cursor: pointer;
}
.rs-cite sup {
  margin-left: 2px;
  font-family: var(--rs-mono);
  color: var(--rs-accent);
}
/* A slide's badge (umtool: its open notes). */
.rs-notes {
  flex: none;
  padding: 3px 12px;
  border: 1px solid var(--rs-accent);
  border-radius: 999px;
  font-family: var(--rs-mono);
  font-size: 14px;
  color: var(--rs-accent);
}
.rs-slide[data-fit="reflow"] .rs-notes {
  font-size: 11px;
  padding: 1px 8px;
}