body.deck {
  --deck-bg: var(--navy);
  --deck-panel: rgba(255, 255, 255, 0.04);
  --deck-panel-2: rgba(255, 255, 255, 0.06);
  --deck-text: var(--text-on-dark);
  --deck-muted: var(--faint);
  --deck-line: var(--line-on-dark);
  --deck-accent: var(--accent);
  --deck-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  color: var(--deck-text);
  background: var(--deck-bg);
}

body.deck .header,
body.deck .footer,
body.deck .footer__bottom {
  color: var(--deck-text);
  background: var(--deck-bg);
  border-color: var(--deck-line);
}

body.deck .header {
  border-bottom: 1px solid var(--deck-line);
}

body.deck .logo,
body.deck .nav a,
body.deck .footer a,
body.deck .footer__logo,
body.deck .footer__copy,
body.deck .footer__col-title {
  color: var(--deck-text);
}

body.deck .nav a:hover,
body.deck .footer a:hover {
  color: #ffffff;
}

body.deck .lang-switch,
body.deck .footer__chip {
  border-color: var(--deck-line);
  background: transparent;
}

body.deck .lang-switch__btn {
  color: var(--deck-muted);
}

body.deck .lang-switch__btn.is-active {
  color: var(--deck-bg);
  background: #ffffff;
}

body.deck .nav-toggle__bar {
  background: var(--deck-text);
}

body.deck main {
  background: var(--deck-bg);
}

body.deck .section--sales {
  --sect-y: clamp(4.5rem, 9vw, 8rem);
  padding: var(--sect-y) 0;
  color: var(--deck-text);
  background: var(--deck-bg);
}

body.deck .section--sales + .section--sales {
  border-top: 1px solid var(--deck-line);
}

body.deck .section--sales .container {
  max-width: 72rem;
  overflow-wrap: break-word;
}

body.deck .section__title,
body.deck .section__intro,
body.deck .deck-slide__headline,
body.deck .deck-slide__lead,
body.deck .deck-slide__list,
body.deck .deck-slide__foot,
body.deck .deck-disclaimer,
body.deck .onepager-card,
body.deck .onepager-resp-title,
body.deck .map-table {
  color: var(--deck-text);
}

body.deck .section__intro,
body.deck .deck-slide__lead,
body.deck .deck-slide__list,
body.deck .deck-slide__foot,
body.deck .deck-disclaimer,
body.deck .onepager-card p,
body.deck .map-table td {
  color: var(--deck-muted);
}

body.deck a {
  color: var(--deck-text);
  text-underline-offset: 0.18em;
}

body.deck code {
  color: var(--deck-text);
  background: transparent;
  border: 1px solid var(--deck-line);
}

body.deck .deck-kicker,
body.deck .deck-slide__tag,
body.deck .deck-filter__label,
body.deck .deck-filter__chip,
body.deck .deck-audience__chip,
body.deck .deck-slide__no,
body.deck .deck-stat strong,
body.deck .deck-role strong,
body.deck .onepager-table th,
body.deck .map-table th,
body.deck .roi-calc__title,
body.deck .roi-calc__field,
body.deck .roi-calc__metric span,
body.deck .deck-stack span,
body.deck .deck-flow__node,
body.deck .deck-timeline__step strong {
  font-family: var(--deck-mono);
  letter-spacing: 0;
  text-transform: none;
}

body.deck .deck-kicker {
  margin: 0 0 0.75rem;
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
}

body.deck .section__title {
  max-width: 18ch;
  color: #ffffff;
}

body.deck .deck-appeal,
body.deck .deck-stat-grid,
body.deck .deck-role-grid,
body.deck .onepager-grid,
body.deck .deck-timeline,
body.deck .roi-calc,
body.deck .deck-flow,
body.deck .deck-stack {
  border: 1px solid var(--deck-line);
  background: var(--deck-panel);
}

body.deck .deck-appeal,
body.deck .deck-stat-grid,
body.deck .deck-role-grid,
body.deck .onepager-grid,
body.deck .deck-timeline {
  display: grid;
  gap: 0;
  margin: 2rem 0;
}

body.deck .deck-appeal {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

body.deck .deck-stat-grid,
body.deck .deck-role-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

body.deck .onepager-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

body.deck .deck-timeline {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

body.deck .deck-appeal__item,
body.deck .deck-stat,
body.deck .deck-role,
body.deck .onepager-card,
body.deck .deck-timeline__step {
  padding: 1.1rem;
  border-right: 1px solid var(--deck-line);
}

body.deck .deck-appeal__item:last-child,
body.deck .deck-stat:last-child,
body.deck .deck-role:last-child,
body.deck .onepager-card:nth-child(3n),
body.deck .deck-timeline__step:last-child {
  border-right: 0;
}

body.deck .onepager-card:nth-child(n + 4) {
  border-top: 1px solid var(--deck-line);
}

body.deck .deck-appeal__item strong,
body.deck .deck-stat strong,
body.deck .deck-role strong,
body.deck .onepager-card h3 {
  display: block;
  margin: 0 0 0.55rem;
  color: #ffffff;
}

body.deck .onepager-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--deck-muted);
}

body.deck .onepager-card ul li {
  margin: 0 0 0.4rem;
}

body.deck .deck-appeal__item span,
body.deck .deck-stat span,
body.deck .deck-role span {
  display: block;
  color: var(--deck-muted);
}

body.deck .deck-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 2rem 0;
}

body.deck .btn {
  border: 1px solid var(--deck-line);
  color: var(--deck-text);
  background: transparent;
}

body.deck .btn--primary {
  border-color: #ffffff;
  color: var(--deck-bg);
  background: #ffffff;
}

body.deck .btn--secondary {
  background: transparent;
}

body.deck .deck-audience,
body.deck .deck-filter__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

body.deck .deck-audience {
  margin: 1.5rem 0;
}

body.deck .deck-audience__chip,
body.deck .deck-filter__chip {
  display: inline-flex;
  align-items: center;
  min-height: 2.25rem;
  padding: 0 0.75rem;
  color: var(--deck-muted);
  border: 1px solid var(--deck-line);
  background: transparent;
  font-size: 0.78rem;
}

body.deck .deck-filter {
  margin: 2rem 0 3rem;
  padding: 1rem;
  border: 1px solid var(--deck-line);
  background: var(--deck-panel-2);
}

body.deck .deck-filter__label {
  display: block;
  margin-bottom: 0.75rem;
  color: #ffffff;
  font-size: 0.8rem;
}

body.deck .deck-filter__chip {
  cursor: pointer;
}

body.deck .deck-filter__chip.is-active {
  color: var(--deck-bg);
  border-color: #ffffff;
  background: #ffffff;
}

body.deck .deck-filter__hint {
  margin: 0.9rem 0 0;
  color: var(--deck-muted);
}

body.deck ol.deck {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

body.deck .deck-slide {
  position: relative;
  display: block;
  padding: clamp(3rem, 7vw, 5rem) 0 clamp(3rem, 7vw, 5.5rem);
  border-top: 1px solid var(--deck-line);
  min-width: 0;
}

body.deck .deck-slide.is-hidden {
  display: none;
}

body.deck .deck-slide__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3rem;
  height: 2rem;
  margin-bottom: 1.25rem;
  color: #ffffff;
  border: 1px solid var(--deck-line);
  font-size: 0.82rem;
  font-weight: 700;
}

body.deck .deck-slide__tag {
  margin: 0 0 0.8rem;
  color: var(--deck-muted);
  font-size: 0.78rem;
}

body.deck .deck-slide__headline {
  max-width: 19ch;
  margin: 0 0 1.4rem;
  color: #ffffff;
  font-size: clamp(2rem, 5vw, 4.4rem);
  line-height: 0.95;
}

body.deck .deck-slide__lead,
body.deck .deck-slide__foot,
body.deck .deck-disclaimer {
  max-width: 58rem;
}

body.deck .deck-slide__list {
  display: grid;
  gap: 0.85rem;
  max-width: 58rem;
  padding-left: 1.2rem;
}

body.deck .deck-slide__list li::marker {
  color: #ffffff;
}

body.deck .deck-flow,
body.deck .deck-stack {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 2rem 0;
}

body.deck .deck-flow__node,
body.deck .deck-stack span {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  min-height: 4rem;
  padding: 0.8rem 1rem;
  color: #ffffff;
  border-right: 1px solid var(--deck-line);
}

body.deck .deck-flow__node small {
  color: var(--deck-muted);
}

body.deck .deck-flow__arrow {
  padding: 0 0.75rem;
  color: var(--deck-muted);
}

body.deck .deck-flow__node--core,
body.deck .deck-stack__core {
  background: rgba(255, 255, 255, 0.06);
}

body.deck .roi-calc {
  margin: 2rem 0 0;
  padding: 1.25rem;
}

body.deck .roi-calc__title {
  margin: 0 0 1rem;
  color: #ffffff;
  font-size: 0.9rem;
}

body.deck .roi-calc__grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--deck-line);
  border: 1px solid var(--deck-line);
}

body.deck .roi-calc__field {
  display: grid;
  gap: 0.65rem;
  padding: 0.9rem;
  color: var(--deck-muted);
  background: var(--deck-panel-2);
  font-size: 0.72rem;
}

body.deck .roi-calc__field input {
  width: 100%;
  color: var(--deck-text);
  border: 1px solid var(--deck-line);
  background: var(--deck-bg);
  font: inherit;
}

body.deck .roi-calc__out {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1rem;
  border: 1px solid var(--deck-line);
}

body.deck .roi-calc__metric {
  display: grid;
  gap: 0.35rem;
  padding: 1rem;
  border-right: 1px solid var(--deck-line);
}

body.deck .roi-calc__metric:last-child {
  border-right: 0;
}

body.deck .roi-calc__metric strong {
  color: #ffffff;
  font-size: clamp(2rem, 5vw, 3.75rem);
  line-height: 1;
}

body.deck .roi-calc__note {
  margin: 1rem 0 0;
  color: var(--deck-muted);
}

body.deck .onepager-resp-title {
  margin-top: 2.5rem;
  color: #ffffff;
}

body.deck .onepager-table,
body.deck .map-table {
  width: 100%;
  margin: 1.5rem 0;
  border-collapse: collapse;
  border: 1px solid var(--deck-line);
  background: transparent;
}

body.deck .onepager-table th,
body.deck .onepager-table td,
body.deck .map-table th,
body.deck .map-table td {
  padding: 0.9rem;
  text-align: left;
  vertical-align: top;
  border: 1px solid var(--deck-line);
}

body.deck .onepager-table th,
body.deck .map-table th {
  color: #ffffff;
  background: transparent;
  font-size: 0.76rem;
}

body.deck .cmp--y,
body.deck .cmp--p,
body.deck .cmp--n {
  color: #ffffff;
  text-align: center;
}

body.deck .cmp-row--us td {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.04);
}

body.deck .map-blank {
  min-width: 8rem;
}

@media (max-width: 900px) {
  body.deck .deck-appeal,
  body.deck .deck-stat-grid,
  body.deck .deck-role-grid,
  body.deck .onepager-grid,
  body.deck .deck-timeline,
  body.deck .roi-calc__grid,
  body.deck .roi-calc__out {
    grid-template-columns: 1fr;
  }

  body.deck .deck-appeal__item,
  body.deck .deck-stat,
  body.deck .deck-role,
  body.deck .onepager-card,
  body.deck .deck-timeline__step,
  body.deck .roi-calc__metric {
    border-right: 0;
    border-top: 1px solid var(--deck-line);
  }

  body.deck .deck-appeal__item:first-child,
  body.deck .deck-stat:first-child,
  body.deck .deck-role:first-child,
  body.deck .onepager-card:first-child,
  body.deck .deck-timeline__step:first-child,
  body.deck .roi-calc__metric:first-child {
    border-top: 0;
  }

  body.deck .onepager-card:nth-child(n + 4) {
    border-top: 1px solid var(--deck-line);
  }
}

@media (max-width: 720px) {
  body.deck .section--sales {
    --sect-y: 3.5rem;
  }

  body.deck .deck-slide__headline {
    max-width: 100%;
    font-size: 2.35rem;
  }

  body.deck .deck-actions,
  body.deck .deck-audience,
  body.deck .deck-filter__chips {
    flex-direction: column;
    align-items: stretch;
  }

  body.deck .deck-actions .btn,
  body.deck .deck-filter__chip,
  body.deck .deck-audience__chip {
    justify-content: center;
    width: 100%;
  }

  body.deck .onepager-table,
  body.deck .map-table {
    display: block;
    overflow-x: auto;
  }
}

@media print {
  body.deck {
    color: #000000;
    background: #ffffff;
  }

  body.deck .no-print,
  body.deck .header,
  body.deck .footer {
    display: none !important;
  }

  body.deck .section--sales,
  body.deck main {
    color: #000000;
    background: #ffffff;
  }

  body.deck .deck-slide,
  body.deck #security-onepager,
  body.deck #map-template,
  body.deck #research-paper {
    break-before: page;
    page-break-before: always;
  }

  body.deck .deck-slide:first-child {
    break-before: auto;
    page-break-before: auto;
  }

  body.deck .section__title,
  body.deck .section__intro,
  body.deck .deck-slide__headline,
  body.deck .deck-slide__lead,
  body.deck .deck-slide__list,
  body.deck .deck-slide__foot,
  body.deck .deck-disclaimer,
  body.deck .onepager-card,
  body.deck .onepager-card ul,
  body.deck .onepager-resp-title,
  body.deck .map-table,
  body.deck .onepager-table,
  body.deck a,
  body.deck code {
    color: #000000;
  }

  body.deck .deck-appeal,
  body.deck .deck-stat-grid,
  body.deck .deck-role-grid,
  body.deck .onepager-grid,
  body.deck .deck-timeline,
  body.deck .roi-calc,
  body.deck .deck-flow,
  body.deck .deck-stack,
  body.deck .onepager-table,
  body.deck .map-table,
  body.deck .deck-slide__no,
  body.deck code {
    border-color: #000000;
    background: #ffffff;
  }

  body.deck .deck-appeal__item,
  body.deck .deck-stat,
  body.deck .deck-role,
  body.deck .onepager-card,
  body.deck .deck-timeline__step,
  body.deck .onepager-table th,
  body.deck .onepager-table td,
  body.deck .map-table th,
  body.deck .map-table td {
    border-color: #000000;
  }
}

/* Bilingual parity guard: the deck's display:block helpers above (e.g.
   `body.deck .deck-stat strong`, specificity 0,2,2) outrank the global
   `.lang-en.i18n-block { display:none }` (0,2,0), which would paint EN
   body copy in KO mode. The EN side is already protected by !important;
   this is the symmetric KO-side guard. Scoped to the deck, KO mode only.
   `html:not(.lang-is-en)` keeps it inert during the EN first-paint FOUC
   window (head script sets html.lang-is-en before script.js flips body),
   so it never overrides the engineered EN FOUC guard. */
html:not(.lang-is-en) body.deck.lang-is-ko .lang-en.i18n-block {
  display: none !important;
}

/* Architecture pipeline diagram (slide "How it fits") — replaces the former
   plain-text arrow string with a real connected diagram, themed to the deck. */
body.deck .arch-pipe {
  display: flex;
  align-items: stretch;
  flex-wrap: nowrap;
  gap: 0;
  margin: 1.15rem 0 0;
}
body.deck .arch-pipe__stage {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.7rem 0.8rem;
  background: var(--deck-panel);
  border: 1px solid var(--deck-line);
  border-radius: 11px;
}
body.deck .arch-pipe__stage--core {
  border-color: var(--deck-accent);
  background: color-mix(in srgb, var(--deck-accent) 16%, transparent);
}
body.deck .arch-pipe__k {
  font-weight: 600;
  color: var(--deck-text);
  font-size: 0.84rem;
  letter-spacing: -0.01em;
  line-height: 1.3;
}
body.deck .arch-pipe__d {
  color: var(--deck-muted);
  font-size: 0.72rem;
}
body.deck .arch-pipe__link {
  flex: 0 0 18px;
  align-self: center;
  height: 2px;
  position: relative;
  background: linear-gradient(90deg, var(--deck-line), var(--deck-accent));
}
body.deck .arch-pipe__link::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -3px;
  border: 4px solid transparent;
  border-left-color: var(--deck-accent);
}
@media (max-width: 760px) {
  body.deck .arch-pipe {
    flex-direction: column;
  }
  body.deck .arch-pipe__link {
    flex-basis: 16px;
    width: 2px;
    height: 16px;
    align-self: flex-start;
    margin-left: 1.4rem;
    background: linear-gradient(180deg, var(--deck-line), var(--deck-accent));
  }
  body.deck .arch-pipe__link::after {
    right: auto;
    left: -3px;
    top: auto;
    bottom: -1px;
    border: 4px solid transparent;
    border-top-color: var(--deck-accent);
  }
}