/* Deck 003 revision: the Successor Test narrative for the frozen Etheric 2.0.0 runtime. */
:root {
  --poi-canvas: #FDFAF8;
  --poi-surface: #FFFEFC;
  --poi-ink: #26323A;
  --poi-ink-2: #52656A;
  --poi-muted: #52656A;
  --poi-rule: #D8E1DE;
  --poi-rule-soft: #E8F0ED;
  --poi-rule-strong: #A9C2B9;
  --poi-accent: #2F806C;
  --poi-accent-text: #1E6555;
  --poi-accent-vivid: #45A288;
  --poi-accent-soft: #E3F1ED;
  --poi-signal: #9A5147;
  --poi-signal-soft: #F0DFDC;

  --ed-paper: var(--poi-canvas);
  --ed-surface: var(--poi-surface);
  --ed-ink: var(--poi-ink);
  --ed-ink-2: var(--poi-ink-2);
  --ed-muted: var(--poi-muted);
  --ed-rule: var(--poi-rule);
  --ed-rule-soft: var(--poi-rule-soft);
  --ed-rule-strong: var(--poi-rule-strong);
  --ed-accent: var(--poi-accent);
  --ed-accent-soft: var(--poi-accent-soft);
  --ed-comparator: var(--poi-accent-vivid);
  --ed-comparator-soft: var(--poi-accent-soft);
  --ed-signal: var(--poi-signal);
  --ed-signal-dark: #773B35;
  --ed-signal-soft: var(--poi-signal-soft);
}

[data-ed-theme="dark"] {
  --poi-canvas: #172021;
  --poi-surface: #202C2C;
  --poi-ink: #EEF4F1;
  --poi-ink-2: #C4D1CD;
  --poi-muted: #A5B6B1;
  --poi-rule: #3B4E4B;
  --poi-rule-soft: #2A3937;
  --poi-rule-strong: #58756D;
  --poi-accent: #75C5AA;
  --poi-accent-text: #9AD6C0;
  --poi-accent-vivid: #A2D9C3;
  --poi-accent-soft: #1F4038;
  --poi-signal: #E39A8E;
  --poi-signal-soft: #4A302E;
  --ed-signal-dark: #F0B1A6;
}

/* The brand files carry their authoritative dark paths; keep their anchor on paper in dark mode. */
[data-ed-theme="dark"] .reveal .poi-cover-visual {
  background: #E3F1ED;
  border-color: #58756D;
}
[data-ed-theme="dark"] .reveal .poi-cover-note,
[data-ed-theme="dark"] .reveal .poi-cover-context {
  color: #1E6555;
}
[data-ed-theme="dark"] .reveal .poi-cover-visual .poi-node-meta {
  color: #1E6555;
}
[data-ed-theme="dark"] .reveal .poi-cover-visual .poi-handoff-records,
[data-ed-theme="dark"] .reveal .poi-cover-visual .poi-handoff-node {
  color: #26323A;
  border-color: #A9C2B9;
}

.ed-grid-navigator,
.ed-grid-header {
  background: var(--poi-canvas);
}

.reveal .slides > section.poi-slide {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 0;
  overflow: hidden;
  background: var(--poi-surface);
  color: var(--poi-ink);
}

.reveal .poi-slide h2 {
  max-width: 31ch;
  margin: 0 0 16px;
  color: var(--poi-ink);
  font-size: 38px;
  line-height: 1.08;
}

.reveal .poi-slide h3,
.reveal .poi-slide p,
.reveal .poi-slide li,
.reveal .poi-slide blockquote {
  color: var(--poi-ink-2);
}

.reveal .poi-slide h3 {
  margin: 0;
  color: var(--poi-ink);
  font-family: var(--ed-serif);
  font-size: 21px;
  font-weight: 500;
  line-height: 1.15;
}

.reveal .poi-slide .ed-kicker {
  margin-bottom: 12px;
  color: var(--poi-accent);
}

.reveal .poi-lead {
  max-width: 72ch;
  margin: 0 0 20px;
  color: var(--poi-ink-2);
  font-size: 17px;
  line-height: 1.42;
}

.reveal .poi-label,
.reveal .poi-diagram-label {
  margin: 0 0 10px;
  color: var(--poi-muted);
  font-family: var(--ed-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .09em;
  line-height: 1.3;
  text-transform: uppercase;
}

.reveal .poi-node-meta,
.reveal .poi-layer-number,
.reveal .poi-time-index,
.reveal .poi-vessel-kicker,
.reveal .poi-proof-boundary,
.reveal .poi-hypothesis-label {
  color: var(--poi-accent-text);
  font-family: var(--ed-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .075em;
  line-height: 1.3;
  text-transform: uppercase;
}

.reveal .poi-source {
  position: absolute;
  right: var(--ed-stage-pad-inline);
  bottom: 21px;
  left: var(--ed-stage-pad-inline);
  z-index: 2;
  margin: 0;
  color: var(--poi-muted);
  font-family: var(--ed-mono);
  font-size: 10px;
  line-height: 1.3;
  letter-spacing: .025em;
}

.reveal .poi-source strong {
  color: var(--poi-ink-2);
  font-weight: 700;
}

.reveal .poi-statement,
.reveal .poi-close-statement {
  max-width: 58ch;
  margin: 15px 0 0;
  color: var(--poi-ink);
  font-family: var(--ed-serif);
  font-size: 27px;
  font-weight: 500;
  letter-spacing: -.02em;
  line-height: 1.15;
}

.reveal .poi-qualification,
.reveal .poi-illustrative {
  margin: 12px 0 0;
  color: var(--poi-muted);
  font-size: 12.5px;
  line-height: 1.35;
}

.reveal .poi-status-tag {
  display: inline-block;
  margin-right: 7px;
  color: var(--poi-accent-text);
  font-family: var(--ed-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .055em;
  text-transform: uppercase;
}

/* Opening: the product name is context; the handoff question is the first reading. */
.reveal .slides > section.ed-cover.poi-cover,
html.print-pdf .reveal .pdf-page > section.ed-cover.poi-cover,
html.reveal-print .reveal .pdf-page > section.ed-cover.poi-cover {
  display: grid !important;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
  gap: 54px;
  align-items: stretch;
  background: var(--poi-surface);
}

.reveal .poi-cover .ed-cover-copy {
  min-width: 0;
}

.reveal .poi-cover-context {
  margin: 9px 0 0;
  color: var(--poi-muted);
  font-family: var(--ed-mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.reveal .poi-cover .ed-cover-main {
  padding: 0 0 26px;
}

.reveal .poi-cover h1 {
  max-width: 13ch;
  margin: 0;
  color: var(--poi-ink);
  font-size: 60px;
  line-height: 1.01;
}

.reveal .poi-cover .ed-cover-sub {
  max-width: 48ch;
  margin-top: 22px;
  color: var(--poi-ink-2);
  font-size: 18px;
  line-height: 1.47;
}

.reveal .poi-cover-visual {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 23px;
  min-width: 0;
  min-height: 0;
  padding: 28px 25px 25px;
  border-left: 1px solid var(--poi-rule-strong);
  background: var(--poi-accent-soft);
}

.reveal .poi-cover-brand {
  display: flex;
  align-items: center;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--poi-rule-strong);
}

.reveal .poi-cover-wordmark {
  display: block;
  width: min(100%, 250px);
  height: auto;
}

.reveal .poi-cover-handoff {
  display: grid;
  align-content: center;
  gap: 11px;
  min-height: 0;
}

.reveal .poi-handoff-node,
.reveal .poi-handoff-records {
  display: grid;
  gap: 6px;
  min-width: 0;
  padding: 15px 16px;
  border-left: 2px solid var(--poi-accent);
  background: color-mix(in srgb, var(--poi-surface) 62%, transparent);
}

.reveal .poi-handoff-node strong,
.reveal .poi-handoff-records strong {
  color: var(--poi-ink);
  font-family: var(--ed-serif);
  font-size: 20px;
  font-weight: 500;
  line-height: 1.12;
}

.reveal .poi-handoff-node > span:last-child {
  color: var(--poi-ink-2);
  font-size: 12px;
  line-height: 1.3;
}

.reveal .poi-handoff-records {
  border-top: 1px solid var(--poi-rule-strong);
  border-right: 1px solid var(--poi-rule-strong);
  border-bottom: 1px solid var(--poi-rule-strong);
  border-left-color: var(--poi-accent-vivid);
}

.reveal .poi-handoff-records strong {
  font-family: var(--ed-sans);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.35;
}

.reveal .poi-handoff-arrow {
  color: var(--poi-accent);
  font-family: var(--ed-serif);
  font-size: 25px;
  line-height: 1;
  text-align: center;
}

.reveal .poi-cover-note {
  margin: 0;
  color: var(--poi-accent-text);
  font-family: var(--ed-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-align: right;
  text-transform: uppercase;
}

/* Slide 2: retained artifacts meet a visible state gap. */
.reveal .poi-gap-exhibit {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 76px minmax(0, 1fr);
  min-height: 0;
  margin-top: 7px;
  border-top: 1px solid var(--poi-rule-strong);
  border-bottom: 1px solid var(--poi-rule-strong);
}

.reveal .poi-gap-column {
  min-width: 0;
  padding: 19px 24px 18px 0;
}

.reveal .poi-gap-state {
  padding-right: 0;
  padding-left: 24px;
  border-left: 1px solid var(--poi-rule);
}

.reveal .poi-gap-column ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.reveal .poi-gap-column li {
  padding: 10px 0 9px;
  border-bottom: 1px solid var(--poi-rule);
  color: var(--poi-ink);
  font-size: 14.5px;
  line-height: 1.25;
}

.reveal .poi-gap-column li::before {
  display: inline-block;
  width: 17px;
  color: var(--poi-accent);
  content: "—";
}

.reveal .poi-gap-state li::before {
  color: var(--poi-signal);
  content: "?";
  font-family: var(--ed-mono);
  font-size: 11px;
  font-weight: 700;
}

.reveal .poi-gap-divider {
  display: grid;
  place-items: center;
  border-inline: 1px solid var(--poi-rule);
  color: var(--poi-signal);
  font-family: var(--ed-serif);
  font-size: 23px;
}

/* Slide 3: one illustrative decision changes without deleting the first observation. */
.reveal .poi-lifecycle-exhibit {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 42px minmax(0, 1fr) 42px minmax(0, 1fr);
  gap: 13px;
  align-items: stretch;
  min-height: 0;
  margin-top: 6px;
  padding: 18px 0 16px;
  border-top: 1px solid var(--poi-rule-strong);
  border-bottom: 1px solid var(--poi-rule-strong);
}

.reveal .poi-lifecycle-node,
.reveal .poi-lifecycle-current {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 11px;
  min-width: 0;
  padding: 15px 16px;
  border-top: 2px solid var(--poi-accent);
  background: var(--poi-accent-soft);
}

.reveal .poi-lifecycle-later {
  border-top-color: var(--poi-signal);
  background: var(--poi-signal-soft);
}

.reveal .poi-lifecycle-node blockquote {
  margin: 0;
  color: var(--poi-ink);
  font-family: var(--ed-serif);
  font-size: 21px;
  line-height: 1.16;
}

.reveal .poi-node-state {
  color: var(--poi-ink-2);
  font-size: 12px;
  line-height: 1.3;
}

.reveal .poi-lifecycle-arrow {
  align-self: center;
  color: var(--poi-accent);
  font-family: var(--ed-serif);
  font-size: 28px;
  line-height: 1;
  text-align: center;
}

.reveal .poi-lifecycle-current {
  border: 2px solid var(--poi-accent);
  background: var(--poi-surface);
}

.reveal .poi-lifecycle-current strong {
  align-self: center;
  color: var(--poi-ink);
  font-family: var(--ed-serif);
  font-size: 25px;
  font-weight: 500;
  line-height: 1.12;
}

.reveal .poi-lifecycle-current > span:last-child {
  color: var(--poi-ink-2);
  font-size: 12px;
  line-height: 1.3;
}

/* Slide 4: three time questions are made distinct before the late-arrival rule. */
.reveal .poi-time-exhibit {
  display: grid;
  gap: 18px;
  min-height: 0;
  margin-top: 8px;
}

.reveal .poi-time-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  min-width: 0;
  padding: 17px 0 0;
  border-top: 2px solid var(--poi-accent);
}

.reveal .poi-time-track-line {
  position: absolute;
  top: 20px;
  right: 0;
  left: 0;
  z-index: 0;
  height: 1px;
  background: var(--poi-accent);
  pointer-events: none;
}

.reveal .poi-time-track-line::after {
  position: absolute;
  top: -4px;
  right: 0;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--poi-accent);
  border-right: 1px solid var(--poi-accent);
  content: "";
  transform: rotate(45deg);
}

.reveal .poi-time-marker {
  display: grid;
  grid-row: 1;
  gap: 7px;
  min-width: 0;
  position: relative;
  z-index: 1;
  padding-top: 1px;
  border-top: 7px solid var(--poi-accent-soft);
  text-align: center;
}

.reveal .poi-time-marker strong {
  color: var(--poi-accent);
  font-family: var(--ed-mono);
  font-size: 18px;
}

.reveal .poi-time-marker span {
  color: var(--poi-ink-2);
  font-size: 13px;
  line-height: 1.25;
}

.reveal .poi-time-definitions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  min-width: 0;
  border-top: 1px solid var(--poi-rule-strong);
}

.reveal .poi-time-definitions > div {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 6px 10px;
  align-content: start;
  min-width: 0;
  padding: 13px 0 11px;
  border-bottom: 1px solid var(--poi-rule);
}

.reveal .poi-time-definitions strong {
  color: var(--poi-ink);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.25;
}

.reveal .poi-time-definitions > div > span:last-child {
  grid-column: 2;
  color: var(--poi-ink-2);
  font-size: 12.5px;
  line-height: 1.3;
}

.reveal .poi-callout {
  padding: 12px 16px;
  border-left: 2px solid var(--poi-signal);
  background: var(--poi-signal-soft);
  color: var(--poi-ink-2);
  font-size: 13px;
  line-height: 1.35;
}

.reveal .poi-callout strong {
  color: var(--poi-ink);
}

/* Slide 5: authority is a separate dimension from provenance and interpretation. */
.reveal .poi-authority-exhibit {
  display: grid;
  grid-template-columns: minmax(0, .72fr) 40px minmax(0, .88fr) 40px minmax(0, 1.3fr);
  gap: 15px;
  align-items: stretch;
  min-height: 0;
  margin-top: 3px;
  border-top: 1px solid var(--poi-rule-strong);
  border-bottom: 1px solid var(--poi-rule-strong);
}

.reveal .poi-authority-column {
  display: grid;
  align-content: center;
  gap: 14px;
  min-width: 0;
  padding: 18px 0;
}

.reveal .poi-authority-column blockquote {
  margin: 0;
  color: var(--poi-ink);
  font-family: var(--ed-serif);
  font-size: 29px;
  line-height: 1.08;
}

.reveal .poi-authority-column > strong {
  color: var(--poi-ink);
  font-size: 17px;
  font-weight: 650;
  line-height: 1.25;
}

.reveal .poi-authority-final {
  padding-left: 17px;
  border-left: 2px solid var(--poi-accent);
}

.reveal .poi-authority-arrow {
  display: grid;
  place-items: center;
  color: var(--poi-accent);
  font-family: var(--ed-serif);
  font-size: 27px;
}

.reveal .poi-non-equivalences {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 26px;
  margin-top: 15px;
  border-top: 1px solid var(--poi-rule);
}

.reveal .poi-non-equivalences span {
  padding: 9px 0 8px;
  border-bottom: 1px solid var(--poi-rule);
  color: var(--poi-ink-2);
  font-size: 12.5px;
  line-height: 1.25;
}

.reveal .poi-non-equivalences b {
  padding: 0 4px;
  color: var(--poi-signal);
  font-family: var(--ed-mono);
  font-size: 11px;
}

.reveal .poi-uncertainty {
  display: grid;
  grid-template-columns: repeat(3, auto) 1fr;
  gap: 17px;
  align-items: center;
  margin-top: 12px;
  padding-top: 10px;
}

.reveal .poi-uncertainty span {
  color: var(--poi-signal);
  font-family: var(--ed-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.reveal .poi-uncertainty em {
  justify-self: end;
  color: var(--poi-muted);
  font-size: 12px;
  font-style: normal;
}

/* Slide 6: prior art is acknowledged in four compact rows, not a logo wall. */
.reveal .poi-reframe-exhibit {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  gap: 44px;
  min-height: 0;
  margin-top: 7px;
  border-top: 1px solid var(--poi-rule-strong);
  border-bottom: 1px solid var(--poi-rule-strong);
}

.reveal .poi-reframe-existing,
.reveal .poi-reframe-question {
  min-width: 0;
  padding: 17px 0 14px;
}

.reveal .poi-reframe-question {
  display: grid;
  align-content: center;
  gap: 13px;
  padding-left: 25px;
  border-left: 1px solid var(--poi-rule);
}

.reveal .poi-reframe-row {
  display: grid;
  grid-template-columns: minmax(140px, .62fr) minmax(0, 1fr);
  gap: 18px;
  align-items: baseline;
  padding: 10px 0 9px;
  border-bottom: 1px solid var(--poi-rule);
}

.reveal .poi-reframe-row strong {
  color: var(--poi-ink);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.25;
}

.reveal .poi-reframe-row span {
  color: var(--poi-ink-2);
  font-size: 12.5px;
  line-height: 1.3;
}

.reveal .poi-reframe-question > p:not(.poi-label) {
  max-width: 31ch;
  margin: 0;
  color: var(--poi-ink);
  font-family: var(--ed-serif);
  font-size: 28px;
  line-height: 1.15;
  letter-spacing: -.02em;
}

.reveal .poi-hypothesis-label {
  color: var(--poi-signal);
}

/* Slide 7: the four-layer reveal is a semantic chain with a qualification, not a service map. */
.reveal .poi-layer-exhibit {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 29px minmax(0, 1fr) 29px minmax(0, 1fr) 29px minmax(0, 1fr);
  gap: 9px;
  align-items: stretch;
  min-height: 0;
  margin-top: 8px;
  padding: 17px 0 16px;
  border-top: 1px solid var(--poi-rule-strong);
  border-bottom: 1px solid var(--poi-rule-strong);
}

.reveal .poi-layer {
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 12px;
  min-width: 0;
  padding: 15px 15px 14px;
  border-top: 2px solid var(--poi-accent);
  background: var(--poi-accent-soft);
}

.reveal .poi-layer-interpretation {
  border-top-color: var(--poi-accent-vivid);
}

.reveal .poi-layer-memory {
  border-top-color: var(--poi-accent);
}

.reveal .poi-layer-output {
  border-top-color: var(--poi-rule-strong);
  background: color-mix(in srgb, var(--poi-surface) 72%, var(--poi-accent-soft));
}

.reveal .poi-layer strong {
  color: var(--poi-ink);
  font-family: var(--ed-serif);
  font-size: 21px;
  font-weight: 500;
  line-height: 1.08;
}

.reveal .poi-layer > span:last-child {
  align-self: end;
  color: var(--poi-ink-2);
  font-size: 12.5px;
  line-height: 1.3;
}

.reveal .poi-layer-arrow {
  align-self: center;
  color: var(--poi-accent);
  font-family: var(--ed-serif);
  font-size: 24px;
  line-height: 1;
  text-align: center;
}

/* Slide 8: source evidence feeds retained lineage, which explains the current projection. */
.reveal .poi-projection-exhibit {
  display: grid;
  grid-template-rows: auto 34px auto 34px auto;
  gap: 0;
  min-height: 0;
  margin-top: 9px;
  border-top: 1px solid var(--poi-rule-strong);
  border-bottom: 1px solid var(--poi-rule-strong);
}

.reveal .poi-projection-current {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 15px;
  align-items: center;
  min-width: 0;
  padding: 15px 18px;
  border-bottom: 1px solid var(--poi-rule-strong);
  border-left: 2px solid var(--poi-accent);
  background: var(--poi-accent-soft);
}

.reveal .poi-projection-current > div {
  display: grid;
  gap: 5px;
}

.reveal .poi-projection-current .poi-diagram-label {
  margin-bottom: 0;
}

.reveal .poi-projection-current strong {
  color: var(--poi-ink);
  font-family: var(--ed-serif);
  font-size: 24px;
  font-weight: 500;
  line-height: 1.08;
}

.reveal .poi-projection-badge {
  color: var(--poi-accent-text);
  font-family: var(--ed-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .05em;
  text-align: right;
  text-transform: uppercase;
}

.reveal .poi-projection-connector {
  position: relative;
  display: grid;
  min-height: 34px;
  align-items: center;
  justify-items: center;
  color: var(--poi-accent);
  font-family: var(--ed-mono);
  font-size: 10px;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.reveal .poi-projection-connector::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: var(--poi-accent);
  content: "";
}

.reveal .poi-projection-connector::after {
  position: absolute;
  top: -1px;
  left: calc(50% - 4px);
  z-index: 1;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--poi-accent);
  border-right: 1px solid var(--poi-accent);
  content: "";
  transform: rotate(-45deg);
}

.reveal .poi-projection-connector span {
  position: relative;
  z-index: 2;
  padding: 2px 8px;
  background: var(--poi-surface);
}

.reveal .poi-projection-history {
  min-width: 0;
  padding: 13px 0 11px;
  border-bottom: 1px solid var(--poi-rule);
}

.reveal .poi-history-row {
  display: grid;
  grid-template-columns: 75px minmax(0, 1fr) minmax(90px, .7fr);
  gap: 12px;
  align-items: baseline;
  padding: 8px 0;
  border-top: 1px solid var(--poi-rule);
}

.reveal .poi-history-row:first-of-type {
  border-top: 0;
}

.reveal .poi-history-row span {
  color: var(--poi-accent);
  font-family: var(--ed-mono);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
}

.reveal .poi-history-row strong {
  color: var(--poi-ink);
  font-size: 13.5px;
  font-weight: 650;
  line-height: 1.25;
}

.reveal .poi-history-row em {
  color: var(--poi-muted);
  font-size: 11.5px;
  font-style: normal;
  line-height: 1.25;
}

.reveal .poi-projection-sources {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  padding: 13px 0 12px;
}

.reveal .poi-projection-sources > div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  min-width: 0;
}

.reveal .poi-projection-sources .poi-diagram-label {
  flex: 0 0 100%;
  margin-bottom: 1px;
}

.reveal .poi-source-chip {
  padding: 5px 9px;
  border: 1px solid var(--poi-rule-strong);
  color: var(--poi-ink-2);
  font-family: var(--ed-mono);
  font-size: 10px;
  line-height: 1.2;
}

.reveal .poi-projection-sources > strong {
  color: var(--poi-accent-text);
  font-size: 13px;
  font-weight: 650;
  text-align: right;
}

/* Slide 9: actor removal makes the successor criterion concrete. */
.reveal .poi-succession-exhibit {
  display: grid;
  grid-template-columns: minmax(190px, .76fr) minmax(150px, .48fr) minmax(0, 1.34fr);
  gap: 22px;
  align-items: stretch;
  min-height: 0;
  margin-top: 7px;
  border-top: 1px solid var(--poi-rule-strong);
  border-bottom: 1px solid var(--poi-rule-strong);
}

.reveal .poi-vessel {
  display: grid;
  align-content: center;
  gap: 10px;
  min-width: 0;
  padding: 18px 0;
}

.reveal .poi-vessel-a {
  border-top: 2px solid var(--poi-rule-strong);
}

.reveal .poi-vessel-b {
  padding-left: 19px;
  border-top: 2px solid var(--poi-accent);
  background: var(--poi-accent-soft);
}

.reveal .poi-vessel strong {
  color: var(--poi-ink);
  font-family: var(--ed-serif);
  font-size: 23px;
  font-weight: 500;
  line-height: 1.1;
}

.reveal .poi-vessel > span:last-of-type {
  color: var(--poi-muted);
  font-size: 12px;
  line-height: 1.3;
}

.reveal .poi-vessel-b ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.reveal .poi-vessel-b li {
  padding: 7px 0 6px;
  border-top: 1px solid var(--poi-rule-strong);
  color: var(--poi-ink);
  font-size: 12.5px;
  line-height: 1.25;
}

.reveal .poi-vessel-b li::before {
  display: inline-block;
  width: 15px;
  color: var(--poi-accent);
  content: "→";
  font-family: var(--ed-mono);
  font-size: 11px;
}

.reveal .poi-succession-transfer {
  position: relative;
  display: grid;
  grid-template-rows: minmax(20px, 1fr) auto minmax(20px, 1fr);
  gap: 9px;
  align-items: center;
  min-width: 0;
  padding: 14px 0;
  color: var(--poi-accent-text);
  font-family: var(--ed-mono);
  font-size: 10px;
  line-height: 1.3;
  text-align: center;
  text-transform: uppercase;
}

.reveal .poi-succession-transfer strong {
  position: relative;
  z-index: 1;
  padding: 0 7px;
  background: var(--poi-surface);
}

.reveal .poi-transfer-line {
  display: block;
  position: relative;
  border-top: 1px solid var(--poi-accent);
}

.reveal .poi-transfer-line::after {
  position: absolute;
  top: -4px;
  right: -1px;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--poi-accent);
  border-right: 1px solid var(--poi-accent);
  content: "";
  transform: rotate(45deg);
}

/* Slide 10: two real proofs, each with its own boundary. */
.reveal .poi-proof-exhibit {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 36px;
  min-height: 0;
  margin-top: 7px;
  padding: 16px 0 14px;
  border-top: 1px solid var(--poi-rule-strong);
  border-bottom: 1px solid var(--poi-rule-strong);
}

.reveal .poi-proof-case {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  gap: 11px;
  min-width: 0;
  padding-right: 24px;
  border-right: 1px solid var(--poi-rule);
}

.reveal .poi-proof-case:last-child {
  padding-right: 0;
  padding-left: 12px;
  border-right: 0;
}

.reveal .poi-proof-case-head {
  display: flex;
  gap: 13px;
  align-items: center;
}

.reveal .poi-proof-case-head .poi-status-tag {
  flex: 0 0 auto;
}

.reveal .poi-proof-rule {
  flex: 1 1 auto;
  height: 1px;
  background: var(--poi-rule-strong);
}

.reveal .poi-proof-case p {
  max-width: 49ch;
  margin: 0;
  color: var(--poi-ink-2);
  font-size: 14px;
  line-height: 1.4;
}

.reveal .poi-proof-boundary {
  color: var(--poi-muted);
  font-weight: 600;
}

/* Slide 11: status is a visible proof boundary rather than a footnote. */
.reveal .poi-maturity-exhibit {
  display: grid;
  grid-template-columns: minmax(0, 1.32fr) minmax(0, .78fr) minmax(0, .9fr);
  gap: 0 24px;
  min-height: 0;
  margin-top: 6px;
  border-top: 1px solid var(--poi-rule-strong);
  border-bottom: 1px solid var(--poi-rule-strong);
}

.reveal .poi-maturity-column {
  min-width: 0;
  padding: 15px 0 13px;
}

.reveal .poi-maturity-column + .poi-maturity-column {
  padding-left: 22px;
  border-left: 1px solid var(--poi-rule);
}

.reveal .poi-maturity-column .poi-label {
  margin-bottom: 11px;
}

.reveal .poi-maturity-current .poi-label {
  color: var(--poi-accent-text);
}

.reveal .poi-maturity-open .poi-label {
  color: var(--poi-signal);
}

.reveal .poi-maturity-queued .poi-label {
  color: var(--poi-muted);
}

.reveal .poi-maturity-column ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.reveal .poi-maturity-column li {
  position: relative;
  padding-left: 14px;
  color: var(--poi-ink-2);
  font-size: 12.5px;
  line-height: 1.32;
}

.reveal .poi-maturity-column li::before {
  position: absolute;
  top: .55em;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--poi-accent);
  content: "";
}

.reveal .poi-maturity-open > strong {
  display: block;
  color: var(--poi-ink);
  font-family: var(--ed-serif);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.12;
}

.reveal .poi-maturity-open > span {
  display: block;
  margin-top: 13px;
  color: var(--poi-ink-2);
  font-size: 13px;
  line-height: 1.35;
}

.reveal .poi-maturity-footer {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) minmax(0, 1.25fr);
  gap: 14px;
  align-items: baseline;
  margin-top: 13px;
  padding-top: 10px;
  border-top: 1px solid var(--poi-rule);
}

.reveal .poi-maturity-footer strong {
  color: var(--poi-ink);
  font-size: 13px;
  font-weight: 650;
  line-height: 1.3;
}

.reveal .poi-maturity-footer > span:last-child {
  color: var(--poi-muted);
  font-size: 12px;
  line-height: 1.3;
}

/* Closing slide: current thesis widens into a qualified design direction. */
.reveal .poi-close-exhibit {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(170px, .5fr) minmax(0, 1fr);
  gap: 22px;
  align-items: stretch;
  min-height: 0;
  margin-top: 11px;
  border-top: 1px solid var(--poi-rule-strong);
  border-bottom: 1px solid var(--poi-rule-strong);
}

.reveal .poi-close-state {
  display: grid;
  align-content: center;
  gap: 5px;
  min-width: 0;
  padding: 11px 0;
}

.reveal .poi-close-state strong {
  color: var(--poi-ink);
  font-family: var(--ed-serif);
  font-size: 19px;
  font-weight: 500;
  line-height: 1.1;
}

.reveal .poi-close-state > span:last-child {
  color: var(--poi-ink-2);
  font-size: 11.5px;
  line-height: 1.35;
}

.reveal .poi-close-future {
  padding-left: 17px;
  border-left: 2px solid var(--poi-accent);
  background: var(--poi-accent-soft);
}

.reveal .poi-close-bridge {
  display: grid;
  grid-template-rows: auto;
  gap: 5px;
  align-content: center;
  justify-items: center;
  padding: 11px 0;
  color: var(--poi-muted);
  font-size: 10px;
  line-height: 1.3;
  text-align: center;
}

.reveal .poi-close-bridge b {
  color: var(--poi-accent);
  font-family: var(--ed-serif);
  font-size: 22px;
  font-weight: 400;
}

.reveal .poi-close-statement {
  max-width: 75ch;
  margin-top: 20px;
  color: var(--poi-ink-2);
  font-family: var(--ed-sans);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.4;
}

.reveal .poi-close-question {
  max-width: 31ch;
  margin: 39px 0 0;
  color: var(--poi-accent-text);
  font-family: var(--ed-serif);
  font-size: 42px;
  line-height: 1.08;
}

/* Mobile/Scroll View: the same DOM becomes a readable vertical document. */
@media (max-width: 720px), (pointer: coarse) {
  .reveal-viewport.ed-in-scroll-view .reveal .slides > section.poi-slide,
  .reveal-viewport.ed-in-scroll-view .reveal .slides > section.ed-cover.poi-cover {
    position: relative !important;
    display: flex !important;
    width: 100%;
    height: auto;
    min-height: 0;
    padding: 36px 22px 38px;
    overflow: visible;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .slides > section.ed-cover.poi-cover {
    display: grid !important;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .slides > section.poi-slide h2 {
    max-width: none;
    margin-bottom: 14px;
    font-size: 32px;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-lead {
    margin-bottom: 18px;
    font-size: 16px;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-source {
    position: static;
    margin-top: 24px;
    padding-top: 10px;
    border-top: 1px solid var(--poi-rule);
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-cover h1 {
    max-width: none;
    font-size: 47px;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-cover-visual {
    min-height: 430px;
    border-top: 1px solid var(--poi-rule-strong);
    border-left: 0;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-gap-exhibit,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-reframe-exhibit,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-projection-exhibit,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-succession-exhibit {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-gap-column,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-gap-state,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-reframe-existing,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-reframe-question {
    padding: 16px 0;
    border-left: 0;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-gap-column ul,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-vessel-b ul {
    grid-template-columns: 1fr;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-gap-divider {
    min-height: 32px;
    border-inline: 0;
    border-block: 1px solid var(--poi-rule);
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-lifecycle-exhibit,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-layer-exhibit,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-authority-exhibit,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-proof-exhibit,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-close-exhibit {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-lifecycle-arrow,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-layer-arrow,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-authority-arrow {
    padding: 2px 0;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-layer-arrow,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-close-bridge b {
    transform: rotate(90deg);
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-time-track,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-time-definitions,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-maturity-exhibit {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-time-marker {
    grid-template-columns: 48px 1fr;
    grid-row: auto;
    gap: 10px;
    align-items: baseline;
    padding: 10px 0;
    border-top: 1px solid var(--poi-rule);
    text-align: left;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-time-track-line {
    display: none;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-time-definitions > div {
    grid-template-columns: 28px 1fr;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-time-definitions > div > span:last-child {
    grid-column: 2;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-gap-divider,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-succession-transfer {
    order: 2;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-vessel-b {
    order: 3;
    padding-left: 0;
    border-left: 0;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-authority-final,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-proof-case,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-proof-case:last-child,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-maturity-column + .poi-maturity-column,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-close-future {
    padding-left: 0;
    border-left: 0;
    border-right: 0;
    border-top: 1px solid var(--poi-rule);
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-proof-case {
    padding-right: 0;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-non-equivalences,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-uncertainty,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-maturity-footer {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-uncertainty em,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-maturity-footer > span:last-child {
    justify-self: start;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-projection-current,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-projection-history,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-projection-sources {
    grid-column: auto;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-projection-current,
  .reveal-viewport.ed-in-scroll-view .reveal .poi-projection-sources {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-projection-connector {
    min-height: 30px;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-projection-sources > strong {
    text-align: left;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-close-bridge {
    grid-template-rows: auto;
    grid-template-columns: 1fr auto;
    justify-items: start;
    align-items: center;
    text-align: left;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-close-bridge b {
    transform: none;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-close-statement {
    margin-top: 18px;
    font-size: 17px;
  }

  .reveal-viewport.ed-in-scroll-view .reveal .poi-close-question {
    max-width: none;
    margin-top: 28px;
    font-size: 32px;
  }
}

@media print {
  .reveal .slides > section.poi-slide {
    background: var(--poi-surface) !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal .poi-slide * {
    scroll-behavior: auto !important;
  }
}