:root {
  --color-paper: #ffffff;
  --color-ink: #0a0a0a;
  --color-muted: #4b5563;
  --color-line: #e5e7eb;
  --color-soft: #f8fafc;
  --color-accent: #111111;
  --color-accent-soft: #f3f4f6;
  --color-highlight: #0b6cff;
  --color-highlight-soft: rgba(11, 108, 255, 0.12);

  --r-background-color: var(--color-paper);
  --r-main-color: var(--color-ink);
  --r-heading-color: var(--color-ink);
  --r-link-color: var(--color-accent);
  --r-link-color-dark: var(--color-ink);
  --r-selection-background-color: var(--color-accent);
  --r-selection-color: var(--color-paper);
}

body {
  font-family: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  color: var(--color-ink);
}

.reveal-viewport {
  background:
    radial-gradient(circle at top right, rgba(17, 17, 17, 0.03), transparent 30%),
    linear-gradient(180deg, #ffffff 0%, #fbfbfc 100%);
}

.reveal {
  font-size: 170%;
}

.reveal .slides {
  text-align: left;
}

.reveal .slides section {
  box-sizing: border-box;
  transform-origin: top center;
}

.reveal .slides section:not(.stack) {
  padding: 2.6rem 0 3.2rem;
}

.reveal .slides section.is-auto-fitted {
  will-change: zoom;
}

.reveal h1,
.reveal h2,
.reveal h3,
.reveal h4 {
  color: var(--color-ink);
  letter-spacing: -0.03em;
  text-transform: none;
}

.reveal h1 {
  font-size: 3.4rem;
  margin-bottom: 0.8rem;
}

.reveal h2 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

.reveal h3 {
  font-size: 1.25rem;
  margin-bottom: 0.7rem;
}

.reveal p,
.reveal li,
.reveal blockquote {
  color: var(--color-muted);
}

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

.reveal .hl {
  color: var(--color-highlight);
  font-weight: 700;
}

.reveal .hl-block {
  display: inline;
  padding: 0;
  border-radius: 0;
  background: transparent;
}

.reveal a {
  color: var(--color-ink);
  text-decoration: underline;
  text-decoration-thickness: 0.14em;
  text-underline-offset: 0.16em;
}

.reveal ul,
.reveal ol {
  display: block;
  margin-left: 1.1em;
}

.reveal li {
  margin-bottom: 0.35em;
}

.reveal blockquote {
  width: 100%;
  margin: 1.3rem 0 0;
  padding: 1rem 1.2rem;
  border: 1px solid var(--color-line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: none;
}

.reveal blockquote p {
  margin: 0;
}

.reveal img {
  border: 0;
  box-shadow: none;
  background: transparent;
}

.reveal .progress span {
  background: var(--color-ink);
}

.reveal .controls {
  display: none !important;
}

.reveal .slide-number {
  display: none !important;
}

.slide-footer {
  position: fixed;
  left: 0;
  right: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  color: var(--color-muted);
}

.slide-footer {
  bottom: 0;
  height: 40px;
  border-top: 1px solid var(--color-line);
  background: rgba(255, 255, 255, 0.92);
  font-size: 0.9rem;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-lockup img {
  height: 30px;
  width: auto;
}

.brand-lockup .brand-text {
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-ink);
}

.slide-footer a {
  color: var(--color-muted);
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.title-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.6rem;
  width: 100%;
  align-items: start;
  margin-top: 0;
}

.title-copy h1 {
  max-width: none;
  margin: 0 0 1.2rem;
  font-size: 3.5rem;
  line-height: 0.95;
}

.title-copy h2 {
  margin: 0;
  font-size: 2.2rem;
}

.title-meta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 2rem;
  width: 100%;
  padding-top: 0.45rem;
}

.title-author h3 {
  margin: 0;
  font-size: 1.25rem;
}

.title-aside {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.title-logo {
  width: 180px;
  max-width: 20vw;
}

.title-support {
  display: grid;
  gap: 1.6rem;
  width: 100%;
  margin-top: 0.5rem;
}

.hero-kicker {
  max-width: 820px;
  margin: 0;
  font-size: 1.2rem;
  color: var(--color-muted);
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  width: 100%;
  max-width: 880px;
  margin-top: 0;
}

.qr-card {
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--color-line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.96);
}

.qrcode-slot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.55rem;
  text-align: center;
}

.qrcode-slot img,
.qrcode-slot svg {
  width: 99px;
  min-width: 99px;
  height: auto;
}

.qrcode-slot a {
  font-size: 0.64rem;
  text-decoration-thickness: 0.1em;
}

.qna-grid {
  margin-top: 1.25rem;
}

.qna-card {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  padding: 1rem;
}

.qna-card .qrcode-slot {
  gap: 0.8rem;
}

.qna-card .qrcode-slot img,
.qna-card .qrcode-slot svg {
  width: 148px;
  min-width: 148px;
}

.qna-card .qrcode-slot a {
  font-size: 0.9rem;
  line-height: 1.35;
  word-break: break-all;
}

.qna-text-card {
  flex-direction: column;
  text-align: center;
}

.qna-text-card h3 {
  margin-bottom: 0.85rem;
}

.qna-text-card p {
  margin: 0;
  max-width: 18rem;
}

.card-grid {
  display: grid;
  gap: 1rem;
  width: 100%;
  margin-top: 1rem;
}

.two-up {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.one-up {
  grid-template-columns: 1fr;
}

.three-up {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.compact .info-card {
  min-height: 0;
}

.info-card {
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--color-line);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(248, 250, 252, 0.96) 100%);
  min-height: 11rem;
}

.info-card p,
.info-card li {
  font-size: 0.95rem;
}

.why-open-grid {
  align-items: stretch;
  gap: 0.8rem;
  margin-top: 0.7rem;
}

.equal-card-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 0.7rem;
  height: 25rem;
}

.media-card {
  position: relative;
  padding: 0;
  overflow: hidden;
}

.media-card .cell-visual {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0 !important;
  max-width: none;
  max-height: none;
  display: block;
  object-fit: cover;
  object-position: center;
  border: 0;
  border-radius: inherit;
  background: transparent;
}

.media-card .contain-visual {
  object-fit: contain;
  background: rgba(255, 255, 255, 0.96);
}

.why-open-grid .info-card,
.why-open-visual {
  min-height: 12.5rem;
}

.why-open-slide {
  padding-top: 1.8rem !important;
}

.rtls-intro-slide {
  padding-top: 1.8rem !important;
  padding-bottom: 2rem !important;
}

.why-open-slide h2 {
  margin-bottom: 0.7rem;
}

.rtls-intro-slide h2 {
  margin-bottom: 0.55rem;
}

.why-open-slide blockquote {
  margin-top: 0.8rem;
  padding: 0.85rem 1rem;
}

.rtls-intro-slide blockquote {
  margin-top: 0.45rem;
  padding: 0.7rem 0.85rem;
  font-size: 0.98rem;
}

.why-open-slide .info-card {
  padding: 0.72rem 0.86rem;
}

.rtls-intro-slide .info-card {
  padding: 0.68rem 0.82rem;
}

.why-open-slide .info-card h3 {
  margin-bottom: 0.28rem;
  font-size: 1.5rem;
}

.rtls-intro-slide .info-card h3 {
  margin-bottom: 0.28rem;
  font-size: 1.52rem;
}

.why-open-slide .info-card ul {
  margin-top: 0.25rem;
}

.rtls-intro-slide .info-card ul {
  margin-top: 0.25rem;
}

.why-open-slide .info-card p,
.why-open-slide .info-card li {
  font-size: 1.12rem;
  line-height: 1.1;
}

.rtls-intro-slide .info-card p,
.rtls-intro-slide .info-card li {
  font-size: 1.16rem;
  line-height: 1.08;
}

.rtls-intro-line {
  margin: 0 0 0.45rem;
  font-size: 1.3rem;
  line-height: 1.15;
}

.rtls-intro-slide .info-card,
.why-open-slide .info-card {
  min-height: 0;
}

.mapping-stack-visual {
  display: block;
  width: min(100%, 860px);
  max-height: 280px;
  margin: 0.8rem auto 0;
  object-fit: contain;
}

.slide-visual {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: none;
  margin: 1rem auto 0;
  object-fit: contain;
  object-position: center;
  border: 1px solid var(--color-line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.96);
}

.media-split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 1.1fr);
  gap: 1.1rem;
  width: 100%;
  align-items: stretch;
  margin-top: 1rem;
}

.media-split-cards {
  margin-top: 0;
  align-content: start;
}

.media-split-cards .info-card {
  min-height: 0;
}

.side-visual {
  width: 100%;
  max-width: 100%;
  height: auto;
  min-height: 0;
  margin: 0;
  object-fit: contain;
  align-self: start;
}

.image-demo-slide {
  padding-top: 1.5rem !important;
  padding-bottom: 1.5rem !important;
}

.image-demo-visual {
  margin-top: 0.75rem;
  max-height: calc(100vh - 230px);
}

.slide-lead {
  max-width: 980px;
  margin: 0 0 1rem;
  font-size: 1.1rem;
}

.eyebrow {
  margin-bottom: 0.45rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-highlight);
}

.imdf-lead {
  max-width: 920px;
}

.imdf-layout {
  display: grid;
  gap: 1rem;
  width: 100%;
  margin-top: 0.9rem;
  max-height: calc(100vh - 290px);
  align-content: start;
  overflow: hidden;
}

.imdf-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  width: 100%;
}

.imdf-point {
  min-height: 0;
  padding-bottom: 1rem;
}

.imdf-point h3 {
  margin-bottom: 0.55rem;
}

.imdf-point p {
  margin-bottom: 0;
}

.imdf-visual-frame {
  position: relative;
  margin: 0;
  min-height: 0;
  overflow: hidden;
}

.imdf-visual {
  margin-top: 0;
  width: 100%;
  height: min(28vh, 250px);
  max-height: min(28vh, 250px);
  object-fit: cover;
  object-position: center;
}

.card-note {
  margin-top: 0.8rem;
  font-weight: 600;
  color: var(--color-ink) !important;
}

.split-callout {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  width: 100%;
  align-items: stretch;
  margin-top: 1.2rem;
}

.flow-box {
  padding: 1.2rem;
  border: 1px solid var(--color-line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.95);
}

.flow-box p {
  margin: 0.55rem 0;
  color: var(--color-muted);
}

.flow-box.emphasized {
  border-color: #d1d5db;
  background: var(--color-accent-soft);
}

.flow-arrow {
  display: flex;
  align-items: center;
  font-size: 2.4rem;
  color: var(--color-ink);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  width: 100%;
  margin: 1rem 0 1.2rem;
}

.timeline-step {
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--color-line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.94);
}

.timeline-step p {
  font-size: 0.95rem;
}

.company-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  width: 100%;
  margin-top: 1rem;
}

.company-card {
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.96);
}

.site-shot {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 8.2;
  object-fit: cover;
  object-position: top center;
  border-bottom: 1px solid var(--color-line);
}

.company-copy {
  padding: 0.85rem 1rem 0.95rem;
}

.company-copy h3 {
  margin-bottom: 0.45rem;
}

.company-pitch {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.4;
}

.company-copy ul {
  margin-bottom: 0;
}

.company-copy li {
  font-size: 0.84rem;
  margin-bottom: 0.22em;
}

.partner-slide-intro {
  max-width: 920px;
  margin: 0.2rem 0 0;
  font-size: 1rem;
}

.partner-wall-image {
  display: block;
  width: min(100%, 1100px);
  max-height: 480px;
  margin: 1.4rem auto 0;
  object-fit: contain;
  border-radius: 18px;
}

.team-strip {
  width: 100%;
  margin-top: 1rem;
}

.team-strip h3 {
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  width: 100%;
}

.team-card {
  padding: 0.8rem 0.95rem;
  border: 1px solid var(--color-line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
}

.team-card strong {
  display: block;
  font-size: 0.88rem;
}

.team-card p {
  margin: 0.18rem 0 0;
  font-size: 0.78rem;
}

@media (max-width: 1100px) {
  .reveal {
    font-size: 145%;
  }

  .three-up,
  .timeline,
  .company-grid,
  .imdf-points {
    grid-template-columns: 1fr;
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .two-up,
  .split-callout,
  .media-split,
  .title-layout {
    grid-template-columns: 1fr;
  }

  .side-visual {
    height: auto;
    min-height: 0;
    max-height: none;
    margin-top: 1rem;
  }

  .flow-arrow {
    justify-content: center;
    transform: rotate(90deg);
  }

  .title-meta {
    grid-template-columns: 1fr;
    gap: 1rem;
    align-items: start;
  }

  .title-aside {
    justify-content: flex-start;
    align-items: flex-start;
  }

  .title-logo {
    max-width: 180px;
  }

  .qr-grid {
    max-width: none;
    grid-template-columns: 1fr;
  }

  .why-open-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .rtls-intro-slide .why-open-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .why-open-slide .info-card,
  .why-open-slide .why-open-visual {
    min-height: 0;
  }

  .rtls-intro-slide .info-card,
  .rtls-intro-slide .why-open-visual {
    min-height: 0;
  }

  .why-open-slide .info-card {
    padding: 0.68rem 0.8rem;
  }

  .rtls-intro-slide .info-card {
    padding: 0.64rem 0.76rem;
  }

  .why-open-slide .info-card h3 {
    font-size: 1.34rem;
  }

  .rtls-intro-slide .info-card h3 {
    font-size: 1.36rem;
  }

  .why-open-slide .info-card p,
  .why-open-slide .info-card li {
    font-size: 1rem;
  }

  .rtls-intro-slide .info-card p,
  .rtls-intro-slide .info-card li {
    font-size: 1.02rem;
  }

  .rtls-intro-line {
    margin-bottom: 0.45rem;
    font-size: 1.18rem;
  }
}

@media (max-height: 820px) {
  .why-open-slide {
    padding-top: 1.35rem !important;
    padding-bottom: 2.4rem !important;
  }

  .rtls-intro-slide {
    padding-top: 1.2rem !important;
    padding-bottom: 1.7rem !important;
  }

  .why-open-grid {
    gap: 0.65rem;
    margin-top: 0.55rem;
  }

  .equal-card-grid {
    gap: 0.65rem;
    margin-top: 0.55rem;
    height: 22rem;
  }

  .why-open-slide .info-card,
  .why-open-slide .why-open-visual {
    min-height: 0;
  }

  .rtls-intro-slide .info-card,
  .rtls-intro-slide .why-open-visual {
    min-height: 0;
  }

  .why-open-slide .info-card {
    padding: 0.62rem 0.74rem;
  }

  .rtls-intro-slide .info-card {
    padding: 0.58rem 0.68rem;
  }

  .why-open-slide .info-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
  }

  .rtls-intro-slide .info-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.28rem;
  }

  .why-open-slide .info-card p,
  .why-open-slide .info-card li {
    font-size: 0.92rem;
  }

  .rtls-intro-slide .info-card p,
  .rtls-intro-slide .info-card li {
    font-size: 0.95rem;
  }

  .why-open-slide .info-card ul {
    margin-left: 1em;
  }

  .rtls-intro-slide .info-card ul {
    margin-left: 1em;
  }

  .why-open-slide blockquote {
    margin-top: 0.6rem;
    padding: 0.7rem 0.9rem;
    font-size: 0.9rem;
  }

  .rtls-intro-slide blockquote {
    margin-top: 0.38rem;
    padding: 0.55rem 0.68rem;
    font-size: 0.82rem;
  }

  .rtls-intro-line {
    margin-bottom: 0.35rem;
    font-size: 1rem;
  }
}