.r3 .site-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 6;
}
.vision {
  --hold: 60vh;
  position: relative;
  height: calc(100vh + var(--hold));
  height: calc(100svh + var(--hold));
}
.vision-stage {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100svh;
  overflow: hidden;
  background: var(--color-bg);
}
.vision-media {
  position: absolute;
  inset: 0;
}
.vision-media img,
.vision-media video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: 62% 30%;
}
.vision-media video {
  opacity: 0;
  transition: opacity 260ms linear;
  pointer-events: none;
}
.vision-media video.is-on {
  opacity: 1;
}
.vision-media video.is-instant {
  transition: none;
}
.vision-media {
  transition: filter 900ms cubic-bezier(0.2, 0, 0.2, 1);
}
html.intro-on .vision-media {
  filter: brightness(0.78);
}
html.intro-on .vision-media.is-revealed {
  filter: none;
}
.vision-scrim {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(
      180deg,
      rgba(16, 24, 22, 0.5) 0%,
      rgba(16, 24, 22, 0) 20%),
    radial-gradient(
      ellipse 50% 42% at 16% 22%,
      rgba(16, 24, 22, 0.42) 0%,
      rgba(16, 24, 22, 0.18) 60%,
      rgba(16, 24, 22, 0) 100%);
}
.vision-copy {
  position: relative;
  z-index: 2;
  padding-top: clamp(96px, 13vh, 150px);
}
.vision h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.5rem, 4.4vw, 4.25rem);
  line-height: 1.02;
  letter-spacing: -0.025em;
  text-shadow: 0 1px 24px rgba(16, 24, 22, 0.35);
}
.vision h1 .line {
  display: block;
}
@media (min-width: 901px) {
  .vision h1 .line {
    white-space: nowrap;
  }
}
.vision .button {
  margin-top: clamp(1.25rem, 3vh, 2rem);
}
.vision-summit {
  position: absolute;
  z-index: 2;
  margin: 0;
  white-space: nowrap;
  right: calc(38% - 0.242 * max(100%, 177.78svh));
  top: calc(30% - 0.155 * max(56.25vw, 100%));
  color: var(--color-text);
  font: 500 clamp(0.95rem, 1.2vw, 1.125rem)/1.3 var(--font-sans);
  letter-spacing: 0.01em;
  text-shadow: 0 1px 14px rgba(16, 24, 22, 0.8);
  opacity: 0;
  transform: translateY(calc(-100% + 6px));
}
@media (prefers-reduced-motion: no-preference) {
  .vision-summit {
    transition: opacity 600ms var(--ease), transform 600ms var(--ease);
  }
}
.vision-summit::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 0.6rem;
  vertical-align: 0.05em;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(149, 242, 186, 0.16);
}
[data-state=done] .vision-summit {
  opacity: 1;
  transform: translateY(-100%);
}
.vision-next {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: clamp(1rem, 3.5vh, 2rem);
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0 1rem;
  border-radius: 22px;
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.9375rem;
  background: rgba(16, 24, 22, 0.45);
  border: 1px solid rgba(183, 201, 191, 0.45);
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}
.vision-next:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.vision-next svg {
  width: 14px;
  height: 14px;
}
.vision-pause {
  right: clamp(1rem, 3vw, 2.5rem);
  bottom: clamp(1rem, 3.5vh, 2rem);
}
.vision-pause .i-play {
  display: none;
}
.vision-pause[aria-pressed=true] .i-pause {
  display: none;
}
.vision-pause[aria-pressed=true] .i-play {
  display: block;
}
@media (max-width: 760px) {
  .vision {
    --hold: 40vh;
  }
  .vision-media {
    bottom: auto;
    height: 68%;
  }
  .vision-media img,
  .vision-media video {
    object-position: 93% 50%;
  }
  .vision-media::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 34%;
    pointer-events: none;
    background:
      linear-gradient(
        180deg,
        rgba(16, 24, 22, 0) 0%,
        rgba(16, 24, 22, 0.7) 60%,
        var(--color-bg) 100%);
  }
  .vision-scrim {
    background:
      linear-gradient(
        180deg,
        rgba(16, 24, 22, 0.6) 0%,
        rgba(16, 24, 22, 0) 16%);
  }
  .vision-copy {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 4.6rem;
    padding-top: 0;
  }
  .vision h1 {
    font-size: clamp(2.1rem, 10vw, 2.75rem);
  }
  .vision .button {
    min-height: 48px;
    margin-top: 1.25rem;
  }
  .vision-summit {
    right: auto;
    left: clamp(1.25rem, 5vw, 5rem);
    top: calc(0.157 * max(56.25vw, 68svh) + 2.4rem);
    font-size: 0.875rem;
  }
  .vision-next {
    left: clamp(1.25rem, 5vw, 5rem);
    transform: none;
    bottom: 1rem;
  }
  .vision-pause {
    bottom: 1rem;
  }
}
.status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1.25rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(183, 201, 191, 0.55);
  color: var(--color-text);
  font: 600 0.75rem/1.2 var(--font-sans);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
}
.status-built .status-dot {
  background: var(--color-accent);
}
.status-progress .status-dot {
  border: 1.5px solid var(--color-accent);
}
.how-intro {
  padding-bottom: clamp(3.5rem, 7vw, 5.5rem);
}
.how-head {
  max-width: 46rem;
}
.how-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.6rem, 2.6vw, 2.25rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
}
.how-head .lede {
  margin-top: 1rem;
}
.states {
  list-style: none;
  margin: clamp(2.5rem, 5vw, 4rem) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(1.75rem, 3.5vw, 2.75rem);
}
.state {
  display: grid;
  grid-template-columns: minmax(13rem, 0.8fr) minmax(0, 2.2fr);
  gap: clamp(1.25rem, 3vw, 3rem);
  align-items: center;
}
@media (max-width: 900px) {
  .state {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
}
.state h4 {
  margin: 0 0 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font: 600 1.2rem/1.25 var(--font-display);
}
.state-n {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid rgba(149, 242, 186, 0.7);
  color: var(--color-accent);
  font: 600 0.8rem/1 var(--font-sans);
}
.state p {
  margin: 0;
  color: var(--color-text-secondary);
}
.state-art {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}
.note {
  margin: 1.75rem 0 0;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}
.floor {
  fill: var(--color-surface);
}
.wall {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 2;
}
.ln {
  fill: none;
  stroke: var(--color-accent);
  stroke-linecap: round;
  stroke-linejoin: round;
}
.pl {
  fill: none;
  stroke: var(--color-text);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 4 196;
  stroke-dashoffset: -104;
  opacity: 0;
}
.st-node {
  fill: var(--color-bg);
  stroke: var(--color-accent);
  stroke-width: 2;
}
.st-mark {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 2;
  stroke-linecap: round;
}
.gate {
  fill: none;
  stroke: var(--color-text);
  stroke-width: 3;
  stroke-linecap: round;
}
.gate-held {
  stroke: var(--color-accent);
}
.person circle,
.person path {
  fill: none;
  stroke: var(--color-text-secondary);
  stroke-width: 2;
}
@media (prefers-reduced-motion: no-preference) {
  .js [data-anim] .ln {
    stroke-dasharray: 100;
    stroke-dashoffset: 100;
  }
  [data-anim].is-on .ln {
    animation: draw 1.3s cubic-bezier(0.3, 0, 0.2, 1) forwards;
  }
  [data-anim].is-on .pl {
    opacity: 0.85;
    animation: pulse 2.2s linear 1.3s infinite;
  }
  [data-anim].is-on .pl-1 {
    animation-duration: 1.7s;
  }
  [data-anim].is-on .pl-2 {
    animation-duration: 2.9s;
  }
  [data-anim].is-on .pl-3 {
    animation-duration: 3.4s;
  }
  .js .state-human[data-anim] .person {
    opacity: 0;
    transition: opacity 500ms var(--ease) 1.3s;
  }
  .state-human[data-anim].is-on .person {
    opacity: 1;
  }
}
@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}
@keyframes pulse {
  from {
    stroke-dashoffset: 4;
  }
  to {
    stroke-dashoffset: -196;
  }
}
.proof-head {
  max-width: 46rem;
}
.proof-mention {
  margin: 1.1rem 0 0;
  color: var(--color-text);
  font-size: 0.9375rem;
}
.proof-figure {
  margin: clamp(2.5rem, 5vw, 3.5rem) 0 0;
  padding: clamp(1.25rem, 3vw, 2.5rem) clamp(1rem, 3vw, 2.5rem) clamp(1.25rem, 2.5vw, 2rem);
  border-radius: 16px;
  background: rgba(26, 39, 34, 0.55);
  border: 1px solid var(--color-border);
}
.proof-art {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}
.proof-art .doc rect,
.proof-art .doc path {
  fill: none;
  stroke: var(--color-text-secondary);
  stroke-width: 2;
  stroke-linecap: round;
}
.proof-art .doc-proposal .edit {
  stroke: var(--color-accent);
}
.proof-art .doc-protected .lock {
  stroke: var(--color-text);
}
.proof-art .track-beyond {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 2;
  stroke-dasharray: 2 8;
}
.proof-art .gate-proof rect {
  fill: var(--color-bg);
  stroke: var(--color-accent);
  stroke-width: 2.4;
}
.proof-art .gate-proof path {
  stroke: var(--color-accent);
  stroke-width: 3;
  stroke-linecap: round;
}
.proof-art .person-wait .ring {
  stroke: var(--color-accent);
  stroke-width: 1.5;
  opacity: 0.6;
}
.proof-labels {
  position: relative;
  height: 1.4rem;
  margin-top: 0.75rem;
  color: var(--color-text-secondary);
  font: 500 0.875rem/1.3 var(--font-sans);
}
.proof-labels span {
  position: absolute;
  top: 0;
  white-space: nowrap;
}
.proof-labels .l1 {
  left: 0;
}
.proof-labels .l2 {
  left: 54.7%;
  transform: translateX(-50%);
}
.proof-labels .l3 {
  right: 0;
}
@media (max-width: 600px) {
  .proof-labels {
    font-size: 0.75rem;
  }
}
.proof-states {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  margin: 1.5rem 0 0;
}
.proof-state {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  font-weight: 600;
}
.proof-state svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
}
.state-wait .status-dot {
  border: 1.5px solid var(--color-accent);
}
.proof-figure figcaption {
  margin: 1.1rem 0 0;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}
@media (prefers-reduced-motion: no-preference) {
  .js [data-proof] .person-wait,
  .js [data-proof] .proof-state {
    opacity: 0;
    transition: opacity 500ms var(--ease);
  }
  [data-proof].is-on .person-wait {
    opacity: 1;
    transition-delay: 1.2s;
  }
  [data-proof].is-on .state-wait {
    opacity: 1;
    transition-delay: 1.5s;
  }
  [data-proof].is-on .state-file {
    opacity: 1;
    transition-delay: 2s;
  }
  [data-proof].is-on .pl {
    animation-delay: 1.2s;
  }
  [data-proof].is-on .ring {
    animation: ring 2s ease-in-out 1.5s infinite;
  }
  [data-proof].is-on .state-wait .status-dot {
    animation: wait 2s ease-in-out 1.5s infinite;
  }
}
@keyframes ring {
  0%, 100% {
    opacity: 0.15;
  }
  50% {
    opacity: 0.8;
  }
}
@keyframes wait {
  50% {
    background: rgba(149, 242, 186, 0.6);
  }
}
html.motion-paused .pl,
html.motion-paused .ln,
html.motion-paused .ring,
html.motion-paused .status-dot {
  animation-play-state: paused !important;
}