html, body {
  margin: 0;
  background: #1a1a1a;
  font-family: var(--font-body);
}

.deck {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 24px;
}

.slide {
  width: 1280px;
  height: 720px;
  box-sizing: border-box;
  padding: 58px 78px;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
}

.slide.dark {
  background: var(--black);
  color: var(--white);
}

.slide.dark:before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(219,251,107,0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(219,251,107,0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}

.slide.light {
  background: var(--cream);
  color: var(--ink);
}

.slide > * {
  position: relative;
  z-index: 1;
}

h1, h2, h3 {
  font-family: var(--font-display);
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 88px;
  line-height: 0.95;
  max-width: 920px;
}

h2 {
  font-size: 50px;
  line-height: 1.06;
  max-width: 1040px;
}

h3 {
  font-size: 25px;
  margin-bottom: 12px;
}

p {
  font-size: 24px;
  line-height: 1.42;
  color: inherit;
}

code {
  font-family: var(--font-mono);
}

.title-slide {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.brand-mark {
  position: absolute;
  top: 48px;
  left: 78px;
  color: var(--neon);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 32px;
}

.kicker, .eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 3px;
  font-weight: 700;
}

.kicker {
  color: var(--gray);
  font-size: 14px;
  margin-bottom: 12px;
}

.eyebrow {
  color: var(--neon);
  font-size: 15px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.light .eyebrow {
  color: var(--ink);
}

.eyebrow:before {
  content: '';
  width: 44px;
  height: 2px;
  background: currentColor;
}

.title-slide p {
  max-width: 760px;
  color: var(--gray);
}

.slide footer {
  position: absolute;
  left: 78px;
  right: 78px;
  bottom: 34px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--gray);
  font-size: 13px;
}

.folder-grid, .split {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 46px;
  align-items: center;
}

.folder-card {
  border: 2px solid var(--ink);
  background: rgba(255,255,255,0.45);
  padding: 24px;
  border-radius: 8px;
  box-shadow: 8px 8px 0 var(--ink);
}

.folder-card span {
  display: block;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.folder-card div {
  border: 1px solid var(--cream-border);
  background: rgba(255,255,255,0.6);
  padding: 11px 14px;
  margin: 9px 0;
  font-family: var(--font-mono);
  font-size: 20px;
}

.folder-card-wide {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 9px 12px;
}

.folder-card-wide span {
  grid-column: 1 / -1;
  margin-bottom: 4px;
}

.folder-card-wide div {
  margin: 0;
  font-size: 18px;
  padding: 9px 12px;
}

.plain-copy p {
  font-size: 26px;
}

.messy-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 36px;
}

.messy-file {
  min-height: 122px;
  border: 2px solid var(--ink);
  background: var(--neon);
  box-shadow: 6px 6px 0 var(--ink);
  padding: 18px;
  display: flex;
  align-items: end;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 25px;
}

.messy-file.blue { background: var(--blue); }
.messy-file.coral { background: var(--coral); color: var(--white); }
.messy-file.teal { background: var(--teal); }

.problem-list, .blocker-grid, .map-callouts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 38px;
}

.problem-list div, .blocker-grid div, .map-callouts div {
  border: 1px solid var(--cream-border);
  background: rgba(255,255,255,0.35);
  padding: 20px;
  border-radius: 8px;
  font-size: 22px;
  font-weight: 700;
}

.timeline-card {
  height: 300px;
  border: 1px solid var(--dark-3);
  border-radius: 10px;
  background: var(--dark);
  position: relative;
}

.timeline-line {
  position: absolute;
  left: 54px;
  right: 54px;
  top: 150px;
  height: 5px;
  background: var(--neon);
}

.dot {
  width: 34px;
  height: 34px;
  background: var(--black);
  border: 5px solid var(--neon);
  border-radius: 50%;
  position: absolute;
  top: 131px;
}

.d1 { left: 84px; }
.d2 { left: 230px; border-color: var(--blue); }
.d3 { left: 390px; border-color: var(--teal); }

.timeline-label {
  position: absolute;
  top: 185px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.l1 { left: 70px; }
.l2 { left: 188px; }
.l3 { left: 336px; }

.concept-grid, .privacy-grid, .origin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 34px;
}

.concept-card, .origin-card {
  border: 1px solid var(--cream-border);
  border-radius: 8px;
  padding: 28px;
  background: rgba(255,255,255,0.35);
}

.concept-card.accent, .origin-card.private {
  border-color: var(--ink);
  background: var(--neon);
}

.concept-card.warning {
  border-color: var(--ink);
  background: var(--coral);
  color: var(--white);
}

.concept-card p, .origin-card p {
  font-size: 22px;
  color: inherit;
}

.origin-card span {
  display: block;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 3px;
  font-weight: 800;
  margin-bottom: 12px;
}

.origin-card.course {
  background: var(--blue);
  border-color: var(--ink);
}

.callout {
  margin-top: 30px;
  padding: 16px 22px;
  border-left: 4px solid var(--ink);
  font-size: 23px;
  font-family: var(--font-display);
  font-weight: 800;
}

.diff-panel {
  margin-top: 34px;
  border: 2px solid var(--ink);
  background: #111;
  color: var(--white);
  border-radius: 8px;
  padding: 22px;
  font-family: var(--font-mono);
  font-size: 24px;
}

.diff-row {
  padding: 13px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.diff-row:last-child { border-bottom: 0; }
.removed { color: var(--coral); }
.added { color: var(--neon); }

.bottom-copy {
  margin-top: 26px;
  font-size: 25px;
  max-width: 980px;
}

.branch-visual {
  margin-top: 26px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  padding: 24px;
  background: rgba(255,255,255,0.35);
}

.lane {
  height: 60px;
  position: relative;
  display: flex;
  align-items: center;
  gap: 72px;
  padding-left: 210px;
  margin-bottom: 18px;
}

.lane:before {
  content: '';
  position: absolute;
  left: 210px;
  right: 30px;
  top: 30px;
  height: 5px;
  background: var(--ink);
}

.branch-lane:before { background: var(--blue); }
.worktree-lane:before { background: var(--teal); }

.lane span {
  position: absolute;
  left: 0;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 800;
}

.lane i {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--neon);
  border: 3px solid var(--ink);
  z-index: 2;
}

.branch-lane i { background: var(--blue); }
.worktree-lane i { background: var(--teal); }

.two-stack {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.two-stack div {
  border: 1px solid var(--dark-3);
  background: var(--dark);
  border-radius: 8px;
  padding: 24px;
}

.two-stack strong {
  display: block;
  color: var(--neon);
  font-family: var(--font-display);
  font-size: 34px;
}

.two-stack span {
  display: block;
  font-size: 21px;
  margin-top: 8px;
}

.diagram-slide img {
  display: block;
  width: 100%;
  max-height: 470px;
  object-fit: contain;
  margin-top: 18px;
}

.map-slide img, .os-slide img {
  max-height: 455px;
}

.map-callouts {
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.map-callouts div {
  padding: 18px;
}

.map-callouts strong, .blocker-grid strong {
  display: block;
  font-size: 20px;
  margin-bottom: 8px;
}

.map-callouts span, .blocker-grid span {
  display: block;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.35;
}

.big-copy {
  font-size: 37px;
  max-width: 1000px;
  color: var(--white);
}

.flow-row, .update-flow {
  display: grid;
  grid-template-columns: 1fr 70px 1fr 70px 1fr;
  align-items: center;
  gap: 14px;
  margin-top: 42px;
}

.flow-row div, .update-flow div {
  min-height: 125px;
  border: 2px solid var(--ink);
  background: rgba(255,255,255,0.4);
  box-shadow: 6px 6px 0 var(--ink);
  padding: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 800;
}

.flow-row span, .update-flow span {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-weight: 800;
  text-align: center;
  font-size: 14px;
}

.blocker-grid {
  grid-template-columns: repeat(2, 1fr);
}

.message-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 32px;
}

.message-grid div {
  border: 1px solid var(--dark-3);
  background: var(--dark);
  border-radius: 8px;
  padding: 24px;
}

.message-grid code {
  display: block;
  color: var(--neon);
  font-size: 24px;
  font-weight: 800;
}

.message-grid p {
  font-size: 21px;
  margin-bottom: 0;
}

.number-list {
  list-style: none;
  padding: 0;
  margin: 34px 0 0;
  max-width: 1040px;
}

.number-list li {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid var(--cream-border);
  font-size: 24px;
  line-height: 1.32;
}

.number-list span {
  background: var(--neon);
  color: var(--ink);
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 16px;
  width: 30px;
  text-align: center;
  border-radius: 3px;
  padding: 4px 0;
  flex: 0 0 auto;
}

.drill-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 28px;
}

.drill-list code {
  border: 1px solid var(--dark-3);
  padding: 16px 18px;
  border-radius: 8px;
  font-size: 23px;
  background: var(--dark);
  color: var(--white);
}

@media print {
  body { background: white; }
  .deck { padding: 0; gap: 0; }
  .slide { page-break-after: always; border: none; }
}


.message-grid.five {
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.message-grid.five div {
  padding: 18px;
}

.message-grid.five code {
  font-size: 18px;
}

.message-grid.five p {
  font-size: 17px;
}

.app-placeholder {
  margin-top: 28px;
  height: 380px;
  border: 2px solid var(--ink);
  border-radius: 10px;
  background: #111;
  box-shadow: 8px 8px 0 var(--ink);
  color: var(--white);
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 270px 1fr;
  grid-template-rows: 54px 1fr;
}

.app-topbar {
  grid-column: 1 / -1;
  background: #0A0A0A;
  border-bottom: 1px solid var(--dark-3);
  color: var(--neon);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 800;
  padding: 18px 22px;
}

.app-sidebar {
  border-right: 1px solid var(--dark-3);
  padding: 24px;
}

.app-pill {
  border: 1px solid var(--neon);
  color: var(--neon);
  border-radius: 6px;
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 17px;
  text-transform: uppercase;
}

.app-line {
  height: 16px;
  background: var(--dark-3);
  margin-top: 22px;
  border-radius: 4px;
}

.app-line.short {
  width: 65%;
}

.app-main {
  padding: 24px;
  display: grid;
  grid-template-rows: 58px 1fr 58px;
  gap: 16px;
}

.app-status, .app-diff, .app-action {
  border: 1px solid var(--dark-3);
  border-radius: 8px;
  padding: 16px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.app-status {
  border-color: var(--blue);
  color: var(--blue);
}

.app-diff {
  color: var(--gray);
}

.app-action {
  border-color: var(--neon);
  color: var(--neon);
}


.screenshot-stage {
  position: relative;
  height: 500px;
  margin-top: 20px;
  border: 2px solid var(--ink);
  border-radius: 10px;
  overflow: hidden;
  background: #111;
  box-shadow: 8px 8px 0 var(--ink);
}

.screenshot-stage img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.codex-shot .screenshot-stage img {
  object-position: right top;
}

.desktop-shot .screenshot-stage img,
.pr-shot .screenshot-stage img {
  object-position: center top;
}

.shot-callout {
  position: absolute;
  background: var(--neon);
  color: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
  border-radius: 6px;
  padding: 9px 12px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.c1 { right: 70px; top: 72px; }
.c2 { right: 70px; top: 146px; background: var(--blue); }
.c3 { right: 70px; top: 222px; }
.c4 { right: 70px; top: 290px; background: var(--teal); }
.d1 { left: 34px; top: 135px; background: var(--blue); }
.d2 { left: 360px; top: 36px; }
.d3 { right: 120px; top: 205px; background: var(--teal); }
.d4 { left: 34px; bottom: 24px; }
.p1 { left: 145px; top: 60px; background: var(--blue); }
.p2 { left: 760px; top: 60px; background: var(--teal); }
.p3 { left: 125px; top: 125px; }
.p4 { left: 155px; top: 245px; background: var(--coral); color: var(--white); }
.p5 { right: 310px; bottom: 40px; }

.habit-strip {
  margin-top: 28px;
  border-left: 4px solid var(--neon);
  background: var(--neon-dim);
  padding: 18px 22px;
  font-size: 24px;
  font-family: var(--font-display);
  font-weight: 800;
}

.translation-strip {
  margin-top: 16px;
  padding: 10px 14px;
  border: 1px solid rgba(28, 255, 169, 0.45);
  background: rgba(28, 255, 169, 0.08);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.3;
  border-radius: 8px;
}


/* V5 refinements */
.diagram-explain {
  max-width: 1040px;
  margin: 10px 0 16px;
  color: var(--ink-2);
  font-size: 24px;
  line-height: 1.35;
}

.diagram-slide .diagram-explain + img {
  max-height: 480px;
}

.clean-shot {
  height: 465px;
}

.screenshot-legend {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.screenshot-legend span {
  border: 2px solid var(--ink);
  background: var(--neon);
  color: var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
  border-radius: 6px;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-align: center;
}

.screenshot-legend span:nth-child(2) { background: var(--blue); }
.screenshot-legend span:nth-child(4) { background: var(--teal); }

.d1 { left: 34px; top: 245px; background: var(--blue); }
.d2 { left: 410px; top: 36px; }
.d3 { right: 110px; top: 215px; background: var(--teal); }
.d4 { left: 34px; bottom: 22px; }
.p1 { left: 115px; top: 42px; background: var(--blue); }
.p2 { left: 835px; top: 42px; background: var(--teal); }
.p3 { left: 115px; top: 112px; }
.p4 { left: 165px; top: 220px; background: var(--coral); color: var(--white); }
.p5 { right: 285px; bottom: 28px; }


/* V6 refinements */
.compare-table {
  width: 100%;
  margin-top: 34px;
  border-collapse: collapse;
  font-size: 22px;
  background: rgba(255,255,255,0.35);
  box-shadow: 8px 8px 0 var(--ink);
}

.compare-table th,
.compare-table td {
  border: 2px solid var(--ink);
  padding: 18px 20px;
  text-align: left;
  vertical-align: top;
}

.compare-table th {
  background: var(--neon);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 17px;
}

.asset-slide {
  padding: 44px 62px 38px;
}

.asset-slide h2 {
  font-size: 38px;
  line-height: 1.04;
  max-width: 1040px;
}

.asset-slide .diagram-explain {
  margin: 10px 0 12px;
  font-size: 20px;
  line-height: 1.25;
}

.asset-slide img {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: 440px;
  object-fit: contain;
  margin: 10px auto 0;
}

/* V7: extend the existing teaching deck; all assets and fonts are local. */
.slide { break-inside: avoid; }
.slide h2 { font-size: 46px; max-width: 1060px; }
.slide .page-number { position: absolute; right: 32px; bottom: 20px; font: 12px var(--font-mono); letter-spacing: 1px; color: var(--ink-2); }
.slide.dark .page-number { color: var(--gray); }
.slide.reference .page-number { font-weight: 700; }
.v7 h1 { font-size: 68px; line-height: 1.03; }
.v7 .lead { font-size: 25px; line-height: 1.35; margin: 20px 0 12px; }
.instruction-diagram { display: block; width: 100%; height: auto; max-height: 410px; object-fit: contain; margin: 25px 0 0; }
.v7 .takeaway { font-size: 24px; line-height: 1.3; margin: 20px 0 0; padding: 12px 0 0 18px; border-left: 4px solid var(--ink); }
.v7.dark .takeaway { border-color: var(--neon); }
.v7 .small-note, .v7 .example-note { font-size: 18px; line-height: 1.35; margin: 18px 0 0; color: var(--ink-2); }
.v7.dark .small-note { color: var(--gray); }
.editorial-columns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 34px; margin: 42px 0 12px; }
.editorial-columns:has(> div:nth-child(2):last-child) { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.editorial-columns > div { border-top: 3px solid var(--ink); padding-top: 18px; }
.editorial-columns h3 { font-size: 29px; line-height: 1.2; }
.editorial-columns p { font-size: 23px; line-height: 1.4; margin: 12px 0 0; }
.dark .editorial-columns > div { border-color: var(--neon); }
.feature-map { display: grid; grid-template-columns: repeat(6,minmax(0,1fr)); gap: 20px; margin-top: 36px; }
.feature-map > div { border-top: 4px solid var(--ink); padding-top: 18px; }
.feature-map h3 { font-size: 27px; }
.feature-map p { font-size: 20px; line-height: 1.3; min-height: 80px; margin: 0 0 14px; }
.feature-map small { display: block; font-size: 16px; line-height: 1.4; color: var(--ink-2); }
.support-row { border-top: 1px solid var(--ink); display: grid; grid-template-columns: 1fr 1fr; gap: 35px; margin-top: 28px; }
.support-row p { font-size: 21px; line-height: 1.5; }
.action-list { list-style: none; padding: 0; margin: 28px 0 0; }
.action-list li { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 35px; border-top: 1px solid var(--cream-border); padding: 19px 0; }
.action-list strong { font-size: 24px; line-height: 1.28; }
.action-list span { font-size: 23px; line-height: 1.3; }
.dark .action-list li { border-color: var(--dark-4); }
.exercise .action-list { margin-top: 22px; }
.exercise .action-list li { padding: 14px 0; grid-template-columns: 1.3fr 0.7fr; }
.exercise .action-list strong { font-size: 22px; }
.exercise .action-list span { font-size: 21px; color: var(--neon); }
.role-recap { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 25px; font-size: 18px; line-height: 1.35; margin-top: 8px; }
.closing-copy { font-family: var(--font-display); font-size: 45px; line-height: 1.28; margin: 40px 0 25px; }
.closing-cycle { color: var(--neon); font-size: 23px; margin-top: 25px; }
.closing-roles { font-size: 22px; color: var(--gray); border-top: 1px solid var(--dark-4); padding-top: 20px; }
#slide-06 .instruction-diagram { margin-top: 4px; max-height: 345px; }
#slide-07 .instruction-diagram { max-height: 320px; margin-top: 8px; }
#slide-27 .editorial-columns { margin-top: 30px; }
#slide-27 .instruction-diagram { margin-top: 18px; }
#slide-99 .editorial-columns { margin-top: 42px; }
#slide-20 .instruction-diagram { max-height: 435px; }
#slide-99 .editorial-columns { margin-top: 28px; }
#slide-99 .instruction-diagram { max-height: 220px; margin-top: 16px; }
#slide-99 .instruction-diagram { max-height: 335px; margin-top: 10px; }
#slide-99 .takeaway { font-size: 22px; }
#slide-39 .editorial-columns { margin-top: 40px; }
#slide-43 .editorial-columns h3 { font: 25px var(--font-mono); }
/* Existing screenshot labels are explanatory overlays. Keep them in bounds. */
.shot-callout { height: auto; width: auto; border-radius: 6px; }
.shot-callout.d4 { top: auto; }
.screenshot-stage { height: 455px; }
.clean-shot { height: 420px; }
.diagram-slide .diagram-explain + img { max-height: 440px; }
.message-grid.five p { font-size: 18px; }
@page { size: 1280px 720px; margin: 0; }
@media print {
  html, body { margin: 0; padding: 0; }
  .deck { display: block; padding: 0; margin: 0; }
  .slide { margin: 0; width: 1280px; height: 720px; break-after: page; page-break-after: always; }
  .slide:last-child { break-after: auto; page-break-after: auto; }
}
/* Explicit placement avoids generated backgrounds participating in grid layout. */
.split > div:first-child { grid-column: 1; grid-row: 1; }
.split > div.two-stack { grid-column: 2; grid-row: 1; }
.folder-grid > .folder-card { grid-column: 1; }
.folder-card-wide { grid-template-columns: repeat(2,minmax(0,1fr)); }
.folder-card-wide > span { grid-column: 1 / 3; grid-row: 1; }
.folder-card-wide > div { font-size: 18px; }
#slide-99 .role-recap span { white-space: normal; }
@media print { .slide.dark:before { display: none; } }
#slide-03 { display: block; }
#slide-03 > div:first-child { position: absolute; left: 78px; top: 205px; width: 535px; }
#slide-03 .two-stack { position: absolute; left: 700px; top: 208px; width: 490px; }

/* V8: official deployment-interface example, cropped with layout only. */
.deployment-example { margin-top: 24px; }
.deployment-crop { width: 1120px; height: 220px; overflow: hidden; border: 1px solid #555; background: #111; }
.deployment-crop img { display: block; width: 1120px; max-width: none; margin-top: -53px; }
.source-caption { font-size: 16px; margin: 8px 0 0; color: var(--ink-2); }
.deploy-strip { font-size: 23px; font-weight: 600; margin-top: 20px; padding: 14px 0; border-bottom: 1px solid var(--cream-border); }
#slide-06 .small-note { margin-top: 12px; }
#slide-06 .takeaway { margin-top: 16px; font-size: 23px; }

/* V9 editable teaching illustrations: local files, agent session, fake settings. */
.local-columns { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 35px; margin-top: 28px; }
.local-columns h3 { font-size: 27px; margin: 4px 0 14px; }
.local-columns p { font-size: 22px; line-height: 1.35; margin: 14px 0; }
.file-window { border: 2px solid var(--ink); border-radius: 8px; background: #fff; overflow: hidden; }
.window-bar { padding: 13px 18px; background: #e9e5dc; border-bottom: 1px solid #bbb; font: 16px var(--font-mono); }
.file-window pre { font: 19px/1.45 var(--font-mono); margin: 19px; white-space: pre-wrap; color: #111; }
.local-columns .path-example { font: 16px/1.6 var(--font-mono); margin-top: 22px; }
.local-example .takeaway { margin-top: 22px; font-size: 23px; }
.local-example .small-note { font-size: 17px; margin-top: 14px; }
.session-window { margin-top: 28px; background: #fff; border: 2px solid #111; border-radius: 9px; padding-bottom: 14px; }
.session-toolbar { display: flex; justify-content: space-between; padding: 18px 22px; background: #e9e5dc; font-size: 19px; }
.session-toolbar span { font: 17px var(--font-mono); }
.session-message { margin: 18px 22px; padding: 15px 22px; border-left: 4px solid #111; background: #f4f1ea; }
.session-message.human { margin-left: 170px; }
.session-message.agent { margin-right: 110px; border-color: #777; }
.session-message strong { font-size: 18px; }
.session-message p { font-size: 22px; line-height: 1.35; margin: 7px 0 0; }
.env-columns { grid-template-columns: 1.25fr 0.85fr; margin-top: 38px; }
.env-columns .file-window pre { font-size: 17px; line-height: 1.7; }
.env-columns .editor-caption { font-size: 22px; line-height: 1.4; margin: 26px 19px; }

/* V10 real evidence and retained editorial layout. */
.evidence-columns { display:grid; grid-template-columns: 1.2fr 1fr; gap:32px; margin-top:24px; }
.evidence-columns h3 { font-size:25px; margin:0 0 10px; }
.evidence-columns p { font-size:21px; line-height:1.35; margin:0 0 18px; }
.repo-evidence { width:100%; height:370px; object-fit:contain; object-position:top; }
.claude-real-crop { width:540px; height:420px; overflow:hidden; border:1px solid #555; }
.claude-real-crop img { width:1080px; max-width:none; height:auto; }
.evidence-columns .file-window pre { font-size:20px; line-height:1.4; }

.claude-real-crop { height:390px; }
.claude-real-crop img { width:1550px; }
#slide-99 .source-caption { margin-top:12px; font-size:15px; }
#slide-20 h2, #slide-15 h2, #slide-99 h2 { font-size:40px; }
.claude-real-crop { position:relative; }
.claude-real-crop img { position:absolute; top:0; left:0; }

.claude-real-crop img { top:-30px; left:-50px; }
#slide-33 .folder-grid { margin-top:20px; }

/* V11 classroom interface illustrations: editable HTML, no student/account data. */
.v11 h2 { font-size:43px; line-height:1.12; }
.v11 .takeaway { font-size:22px; margin-top:16px; }
.compare-visual { display:grid; grid-template-columns:1fr 1fr; gap:36px; margin-top:24px; }
.compare-visual h3 { font-size:27px; margin:0 0 14px; }
.compare-visual p { font-size:22px; line-height:1.35; margin:16px 0 0; }
.compare-visual .file-window pre { font-size:21px; line-height:1.5; min-height:215px; }
.github-compare { width:100%; height:330px; object-fit:contain; object-position:top; border:1px solid #aaa; }
.cycle-strip { display:flex; gap:12px; margin:16px 0 18px; font-size:16px; }
.cycle-strip span { padding:5px 12px; border:1px solid #aaa; border-radius:20px; }
.cycle-strip span.active { background:var(--neon); border-color:#111; font-weight:700; }
.app-demo { border:1px solid #bab5ad; border-radius:10px; background:#faf9f6; overflow:hidden; height:370px; }
.app-top { height:44px; display:flex; align-items:center; justify-content:space-between; padding:0 20px; background:#eae7df; border-bottom:1px solid #cac5bb; font-size:16px; }
.app-top > b { font-family:Georgia,serif; font-size:24px; }
.app-top strong { border-bottom:2px solid #b05f42; padding:0 5px 8px; }
.app-body { display:grid; grid-template-columns:180px 1fr 330px; height:326px; }
.app-body aside { padding:18px 12px; background:#f0ede6; border-right:1px solid #d7d2c9; font:13px/1.4 var(--font-mono); }
.app-body aside b { display:block; font:15px var(--font-body); margin-bottom:18px; }
.app-body aside span { display:block; margin-bottom:16px; overflow-wrap:anywhere; }
.app-chat { padding:12px 16px; position:relative; }
.chat-turn { padding:8px 12px; margin-bottom:10px; }
.chat-turn.person { background:#ebe6dc; border-radius:8px; margin-left:20px; }
.chat-turn b { font-size:14px; color:#555; }
.chat-turn p { margin:4px 0 0; font-size:18px; line-height:1.3; }
.app-input { position:absolute; bottom:10px; left:16px; right:16px; border:1px solid #c5bfb5; border-radius:9px; padding:9px 12px; color:#777; font-size:14px; background:#fff; }
.app-input small { display:block; margin-top:8px; font-size:12px; color:#555; }
.app-document { border-left:1px solid #d0cbc1; background:#fff; padding:0 18px 12px; }
.doc-tab { font:13px/1.3 var(--font-mono); padding:13px 0; border-bottom:1px solid #ddd; margin-bottom:16px; }
.app-document h3 { font-size:24px; margin:0 0 16px; }
.app-document p, .app-document li { font-size:17px; line-height:1.35; margin:10px 0; }
.app-document ol { padding-left:20px; }
.human-decision { font-size:16px; line-height:1.35; border-left:3px solid #b05f42; background:#f7efe9; padding:10px 12px; margin-top:16px; }
.draft-line, .check-row { font-size:17px; line-height:1.3; padding:12px 0; border-bottom:1px solid #ddd; }
.attention { color:#865222; }
.demo-caption { font-size:12px; color:#666; margin-top:7px; }
.journey-map, .supplier-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:26px; margin:36px 0 28px; }
.journey-map h3 { font-size:26px; margin:0 0 24px; }
.journey-map p { font-size:23px; line-height:1.4; }
.folder-tab { border:2px solid #111; background:#fff; padding:25px 15px; font:21px var(--font-mono); }
.repo-window { border:1px solid #bcc3cc; border-radius:7px; background:#fff; overflow:hidden; }
.repo-bar { background:#edf0f3; padding:16px 14px; font:17px var(--font-mono); border-bottom:1px solid #ccc; }
.repo-bar b { font-size:12px; padding:3px 8px; border:1px solid #aaa; border-radius:14px; }
.repo-tabs { padding:15px; font-size:17px; border-bottom:1px solid #ccc; }
.repo-row { padding:20px 14px; border-bottom:1px solid #ddd; font:17px var(--font-mono); }
.repo-row span { float:right; font:15px var(--font-body); color:#555; }
.supplier-grid .repo-bar { font-size:16px; }
.supplier-grid p { padding:14px; font-size:21px; }
.file-diff { font:17px/1.4 var(--font-mono); padding:13px 6px; border-bottom:1px solid #ddd; }
.file-diff.added { background:#eff8ed; }
.file-diff.kept { color:#555; font-size:15px; }
.transfer-caption { font-size:23px; margin-top:30px; border-left:4px solid #111; padding-left:18px; }
.scope-window { margin-top:25px; border:2px solid #888; padding:24px; background:#eae7df; }
.shared-scope h3 { font-size:26px; margin:0; }
.shared-scope p { font-size:22px; margin:12px 0 24px; }
.scope-projects { display:grid; grid-template-columns:1fr 1fr; gap:30px; }
.scope-projects pre { font-size:22px; }
.brief-context { font:15px var(--font-mono); margin-top:12px; color:#555; }
.slide:has(.brief-context) .instruction-diagram { max-height:365px; margin-top:12px; }
#slide-03 { display:block; }
#slide-03 > div:first-child { position:static; width:auto; }
#slide-03 .two-stack { position:static; }
#slide-33 .folder-grid { margin-top:25px; }

.app-demo { height:420px; }
.app-body { height:376px; }
.app-body aside { font-size:14px; }
.app-document p, .app-document li { font-size:18px; }
.file-diff.added { color:#24472b; }
.history-list { padding:20px 22px 20px 44px; }
.history-entry { border-left:2px solid #777; padding:4px 0 22px 22px; position:relative; }
.history-entry:last-child { border-left-color:transparent; padding-bottom:3px; }
.history-entry:before { content:''; width:13px; height:13px; border:2px solid #111; border-radius:50%; background:var(--neon); position:absolute; left:-9px; top:5px; }
.history-entry b { display:block; font-size:21px; line-height:1.3; }
.history-entry span { display:block; font-size:17px; color:#555; line-height:1.4; margin-top:6px; }
#slide-18 .compare-visual .file-window pre { font-size:20px; line-height:1.45; }

.v11 > h2 + .app-demo { margin-top:24px; }
.cycle-key { margin-left:auto; align-self:center; font-size:13px; color:#555; }

/* V12: editable folder and repository-model comparisons. */
.v12 .compare-visual {margin-top:22px;gap:32px;}
.v12 .folder-card {padding:15px 20px;margin:12px 18px;border:1px solid #a9a69c;border-radius:6px;background:#fff;}
.v12 .folder-card b {display:block;font-family:var(--font-mono);font-size:21px;}
.v12 .folder-card span {display:block;margin-top:7px;font-size:18px;color:#454545;}
.v12 .active-folder {border-left:5px solid #b1d431;}
.v12 .folder-switch {font-size:17px;text-align:center;margin:8px 0;}
.v12 .folder-choices .window-bar {font-size:18px;}
.v12 .compare-visual > div > p {font-size:21px;line-height:1.4;}
.v12 .model-node {padding:15px 18px;background:#fff;border:1px solid #aaa89e;border-radius:6px;font-size:21px;}
.v12 .model-arrow {font-size:17px;text-align:center;color:#555;margin:12px 0;}
.v12 .emphasized {border-left:5px solid #b1d431;}
.v12 .repo-models {margin-top:28px;}
.v12 .takeaway {font-size:23px;}

.v12 .folder-card {box-shadow:none;}

/* V13: instructional editor, folder and conflict illustrations. */
.v13 h2 {font-size:42px;line-height:1.12;max-width:1124px;}
.v13 h3 {font-size:26px;line-height:1.2;}
.v13-cols {display:grid;grid-template-columns:1fr 1fr;gap:36px;margin-top:30px;}
.v13-cols p {font-size:23px;line-height:1.42;margin:16px 0;}
.v13 .file-window pre {font-size:20px;line-height:1.65;padding:20px;white-space:pre-wrap;overflow-wrap:anywhere;margin:0;min-height:235px;}
.v13 .window-bar {font-size:18px;padding:14px 18px;}
.v13 .takeaway {font-size:23px;line-height:1.35;margin-top:28px;}
.v13 .small-note {font-size:16px;line-height:1.35;margin-top:14px;}
.v13-three {display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:30px;}
.v13-three h3 {font-size:23px;}
.v13-three p {font-size:22px;line-height:1.4;}
.v13 .v13-three .file-window pre {font-size:21px;}
.test-results {background:#141819;color:#eef3ee;padding:16px 22px;font-family:var(--font-mono);border-radius:6px;}
.test-results p {font-size:19px;line-height:1.4;margin:10px 0;}
.test-results b {display:block;margin-top:20px;color:#dbfb6b;font-size:21px;}
.feedback-body {grid-template-columns:46% 54%;}
.feedback-body .app-document p {font-size:18px;line-height:1.25;margin:10px 0;}
.feedback-body .app-document h3 {margin-bottom:10px;}
.feedback-body .doc-tab {margin-bottom:10px;}
.google-collab {width:100%;height:335px;object-fit:contain;}
.common-base {font-size:23px;margin-top:28px;padding:18px 20px;background:#e8e4db;}
.conflict-text {border-left:4px solid #a76b40;padding:20px;background:#fff;font-size:27px;line-height:1.45;}
.resolved-text {border-left:5px solid #88a12b;background:#fff;padding:22px;margin-top:30px;font-size:22px;}
.resolved-text p {font-size:27px;margin:12px 0;line-height:1.4;}
.completion-table {margin-top:28px;}
.completion-table > div {display:grid;grid-template-columns:1fr 1fr 1.3fr;gap:24px;padding:20px 14px;border-bottom:1px solid #b8b3a8;font-size:22px;line-height:1.4;}
.completion-table > div:first-child {background:#e8e4db;font-size:21px;}

.diff-legend {font-size:19px;margin-top:22px;display:flex;gap:24px;align-items:center;}
.removed-label {background:#f8e5e4;color:#752720;padding:5px 9px;}
.added-label {background:#e3f3df;color:#28502d;padding:5px 9px;}

/* V14: course orientation, source-to-destination flows and Finder illustrations. */
.v14 h2 {font-size:40px;line-height:1.15;}
.v14-course-intro {display:grid;grid-template-columns:710px 1fr;gap:32px;align-items:center;margin-top:36px;}
.v14-course-intro img {width:710px;height:auto;}
.v14-course-intro p {font-size:24px;line-height:1.35;}
.v14-flow {display:flex;align-items:stretch;gap:12px;margin-top:35px;}
.v14-node {border:2px solid #45483e;background:#fff;padding:23px 20px;flex:1;}
.v14-node h3 {font-size:25px;margin:0 0 20px;}
.v14-node p {font-size:22px;line-height:1.55;margin:0;}
.v14-arrow {align-self:center;font-size:34px;color:#45483e;}
.v14-source-band {display:flex;align-items:center;gap:25px;background:#e8e4db;padding:21px 24px;margin-top:28px;font-size:21px;line-height:1.4;}
.v14-source-band>b {max-width:310px;}
.v14 .takeaway {font-size:23px;margin-top:25px;}
.v14-camp-intro {display:flex;gap:28px;margin-top:55px;}
.decision-root {width:770px;margin:25px auto 0;border:2px solid #45483e;background:#fff;padding:20px;text-align:center;}
.decision-root>b {font-size:25px;}
.decision-root p {font-size:21px;line-height:1.4;margin:12px 0 0;}
.decision-stem {height:24px;border-left:2px solid #45483e;width:1px;margin:auto;}
.decision-branches {display:grid;grid-template-columns:1fr 1fr;gap:50px;border-top:2px solid #45483e;margin:0 42px;}
.decision-label {font:16px var(--font-mono);text-align:center;padding:14px 0;background:#f4f1ea;}
.decision-branches .v14-node {padding:18px 22px;min-height:142px;}
.decision-branches .v14-node h3 {margin-bottom:12px;}
.finder {border:1px solid #b7b4ae;border-radius:10px;background:#fff;margin-top:26px;overflow:hidden;}
.finder-toolbar {height:55px;display:flex;gap:30px;align-items:center;padding:0 22px;background:#ecebe8;font-size:18px;border-bottom:1px solid #c8c5bf;}
.finder-toolbar>span:last-child {margin-left:auto;font-size:15px;color:#555;}
.traffic {color:#7e7e78;letter-spacing:3px;font-family:var(--font-mono);}
.finder-body {display:grid;grid-template-columns:180px 1fr;min-height:315px;}
.finder-body aside {padding:24px 15px;background:#f0efed;font-size:18px;}
.finder-body aside b {display:block;font-size:14px;color:#666;margin-bottom:24px;}
.finder-body aside span {display:block;padding:10px;border-radius:5px;}
.finder-body aside .chosen {background:#dce3e8;}
.finder-labels,.finder-row {display:grid;grid-template-columns:1fr 220px;align-items:center;}
.finder-labels {font-size:14px;color:#555;padding:10px 22px;border-bottom:1px solid #ddd;}
.finder-row {font-size:20px;min-height:35px;padding-right:22px;border-bottom:1px solid #efefed;}
.finder-row:nth-child(odd) {background:#fafafa;}
.finder-row>span:last-child {font-size:16px;color:#555;}
.finder-row i {display:inline-block;width:18px;height:14px;background:#8cc5e5;border:1px solid #5892b5;border-radius:2px;margin-right:12px;}
.finder-row.file i {background:#fff;border-color:#aaa;width:13px;height:17px;margin-right:17px;}
.v14-work-order {background:#fff;border:1px solid #b7b4ae;margin-top:24px;}
.v14-work-order p {font-size:21px;line-height:1.4;margin:14px 22px;}
.v14-work-order+.v14-flow {margin-top:22px;}
.v14-work-order+.v14-flow .v14-node {padding:16px;}
.v14-work-order+.v14-flow .v14-node h3 {margin-bottom:8px;}

/* V15: capability scope, system map and visual chapter transitions. */
.v15 h2 {font-size:40px;line-height:1.15;}
.scope-shared {border:2px solid #505746;background:#e7eddb;padding:20px 25px;margin:30px 30px 0;text-align:center;}
.scope-shared h3 {font-size:25px;margin:0 0 12px;}
.scope-shared p {font-size:21px;line-height:1.4;margin:0;}
.scope-arrows {display:grid;grid-template-columns:1fr 1fr;text-align:center;margin:0 60px;}
.scope-arrows span {padding:19px 0;font-size:17px;}
.scope-arrows span:before {content:'';display:block;border-left:2px solid #505746;height:20px;width:1px;margin:-19px auto 6px;}
.scope-destinations {display:grid;grid-template-columns:1fr 1fr;gap:40px;margin:0 30px;}
.scope-destinations>div {background:#fff;border:2px solid #505746;padding:20px 24px;}
.scope-destinations h3 {font-size:25px;margin:0 0 16px;}
.scope-destinations p {font-size:23px;line-height:1.5;margin:0;}
.v15-divider {display:grid;grid-template-columns:660px 1fr;gap:48px;align-items:center;margin-top:42px;}
.v15-divider h3 {font-size:27px;line-height:1.3;}
.v15-divider p {font-size:25px;line-height:1.4;margin:23px 0;}
.v15-camp-art {background:#eae3d2;border:1px solid #b4aa96;height:355px;display:flex;flex-direction:column;align-items:center;justify-content:center;}
.v15-camp-art img {width:380px;height:275px;}
.v15-camp-art>div {font:20px var(--font-mono);letter-spacing:3px;margin-top:10px;}
.v15-git-art {width:660px;height:340px;}
.v15-system-map {display:block;width:1120px;height:420px;margin-top:20px;}
.v15:has(.v15-system-map) .takeaway {font-size:22px;margin-top:10px;}
.v15:has(.v15-system-map) .small-note {margin-top:10px;font-size:15px;}
.v15-path-columns {display:grid;grid-template-columns:1fr 1fr;gap:35px;margin-top:22px;}
.v15-path-columns h3 {font-size:26px;margin:0 0 15px;}
.v15-path-columns .window-bar {font-size:17px;padding:12px;}
.v15-path-columns .file-window pre {font-size:20px;line-height:1.4;min-height:0;padding:17px 22px;}
.v15-path-columns p {font-size:21px;line-height:1.3;margin:12px 0 0;}
.v15:has(.v15-path-columns) .takeaway {font-size:22px;margin-top:19px;}
.v15:has(.v15-path-columns) .small-note {font-size:14px;margin-top:9px;}

/* User-supplied GitHub Desktop overview, slide 34. Preserve the full image. */
.v15-git-desktop {display:block;width:714px;height:480px;object-fit:contain;margin:16px auto 0;}
#slide-32 .takeaway {margin-top:12px;font-size:22px;}

/* Shared document and filename comparison. */
.v16-doc-comparison .google-collab {height:285px;}
.v16-doc-comparison .small-note {font-size:16px;}

/* Workforce summary: a task within one repo and a sibling project repo. */
.workforce-folder-summary .file-window pre {font-size:19px;line-height:1.45;padding:18px;}
.workforce-folder-summary .local-columns p {font-size:23px;line-height:1.35;}
.workforce-folder-summary .local-columns .path-example {font-size:17px;}
.workforce-folder-summary .takeaway {font-size:22px;margin-top:20px;}
.workforce-folder-summary .small-note {font-size:16px;line-height:1.35;}

/* Combined ignore rules and local settings example. */
.merged-env .local-columns {grid-template-columns:1fr 1fr;gap:24px;margin-top:24px;align-items:stretch;}
.merged-env .window-bar {font-size:17px;padding:12px 16px;}
.merged-env .file-window pre {font-size:18px;line-height:1.4;padding:16px;white-space:pre-wrap;overflow-wrap:anywhere;margin:0;}
.merged-env .editor-caption {font-size:17px;margin:0;padding:0 16px 14px;}
.merged-env .takeaway {font-size:21px;line-height:1.3;margin:18px 0 12px;}
.env-reference-notes p {font-size:15px;line-height:1.4;margin:7px 0;}