/* The vertical landing page and the eight horizontal sessions are separate systems. */
body:has(.horizontal-navigation-transition) {
  overflow: hidden;
}

.horizontal-navigation-transition {
  position: fixed;
  inset: 0;
  z-index: 70;
  overflow: hidden;
  pointer-events: auto;
  background: transparent;
}

.vertical-session-copy,
.horizontal-session {
  position: absolute !important;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
  min-height: 100% !important;
  max-height: 100% !important;
  margin: 0 !important;
  overflow: hidden !important;
  transition: transform .72s cubic-bezier(.16, 1, .3, 1);
}

.vertical-session-copy {
  padding: clamp(86px, 12vh, 140px) 0 clamp(38px, 8vh, 100px) !important;
  opacity: 1 !important;
  transform: translateX(0);
}

#horizontal-experience > .horizontal-session {
  display: none;
}

.horizontal-navigation-transition .horizontal-session {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  padding: clamp(24px, 4vw, 64px);
  background:
    radial-gradient(circle at 76% 42%, rgba(155, 124, 255, .12), transparent 34%),
    linear-gradient(135deg, #080b12, #0d0a18);
  transform: translateX(100%);
}

.horizontal-navigation-transition.is-moving .vertical-session-copy {
  transform: translateX(-100%);
}

.horizontal-navigation-transition.is-moving .horizontal-session {
  transform: translateX(0);
}

.horizontal-navigation-transition.is-closing .vertical-session-copy {
  transform: translateX(0);
}

.horizontal-navigation-transition.is-closing .horizontal-session {
  transform: translateX(100%);
}

.vertical-session-copy .reveal,
.vertical-session-copy .reveal.is-visible {
  opacity: 1 !important;
  transform: none !important;
}

.vertical-session-embed-placeholder {
  min-height: 120px;
  background: transparent;
}

.horizontal-session-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.horizontal-session-header > div {
  display: grid;
  gap: 6px;
}

.horizontal-session-kicker,
.horizontal-session-header strong,
.horizontal-session-index {
  color: var(--muted);
  font: 9px var(--mono);
  letter-spacing: .12em;
}

.horizontal-session-kicker {
  color: var(--acid);
}

.horizontal-session-return {
  padding: 12px 14px;
  border: 1px solid var(--line-bright);
  color: var(--acid);
  font: 9px var(--mono);
  letter-spacing: .1em;
}

.horizontal-session-return:hover,
.horizontal-session-return:focus-visible {
  background: var(--acid);
  color: #080b12;
}

.horizontal-session-body {
  display: grid;
  grid-template-columns: minmax(250px, .58fr) minmax(0, 1.42fr);
  gap: clamp(24px, 5vw, 80px);
  align-items: center;
  min-height: 0;
  padding: clamp(22px, 5vh, 58px) 0 0;
}

.horizontal-session-copy {
  max-width: 470px;
}

.horizontal-session-copy h2 {
  margin: 0 0 22px;
  color: var(--ink);
  font-size: clamp(3.2rem, 7vw, 8rem);
  line-height: .84;
  letter-spacing: -.09em;
}

.horizontal-session-copy > p:not(.eyebrow) {
  max-width: 390px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.horizontal-session-index {
  display: block;
  margin-top: 34px;
  color: var(--cyan);
}

.horizontal-session-demo {
  min-width: 0;
  height: min(66vh, 680px);
  overflow: hidden;
  border: 1px solid rgba(155, 124, 255, .4);
  background: rgba(5, 8, 14, .52);
  box-shadow: 0 30px 100px rgba(0, 0, 0, .32);
}

.horizontal-session-demo iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: transparent;
}

.scene .scene-side-arrow--left {
  left: clamp(58px, 6vw, 96px);
}

.scene .scene-side-arrow--right {
  right: clamp(58px, 6vw, 96px);
}

.horizontal-session-arrow {
  position: absolute;
  top: 50%;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 8px;
  border: 1px solid rgba(155, 124, 255, .34);
  background: rgba(8, 7, 13, .82);
  color: var(--muted);
  font: 10px var(--mono);
  letter-spacing: .1em;
  transform: translateY(-50%);
  transition: color .25s, border-color .25s, background .25s, transform .25s;
}

.horizontal-session-arrow span {
  font-size: 22px;
  line-height: .7;
}

.horizontal-session-arrow--left {
  left: 18px;
}

.horizontal-session-arrow--right {
  right: 18px;
}

.horizontal-session-arrow:hover:not(:disabled),
.horizontal-session-arrow:focus-visible:not(:disabled) {
  border-color: var(--acid);
  background: var(--acid);
  color: #080b12;
  transform: translateY(-50%) scale(1.06);
}

.horizontal-session-arrow:disabled {
  opacity: .22;
  cursor: not-allowed;
}

@media (max-width: 850px) {
  .horizontal-navigation-transition .horizontal-session {
    padding: 24px;
  }

  .horizontal-session-body {
    grid-template-columns: 1fr;
    gap: 20px;
    overflow: auto;
    padding-bottom: 70px;
  }

  .horizontal-session-copy {
    max-width: none;
  }

  .horizontal-session-copy h2 {
    font-size: clamp(3rem, 15vw, 6rem);
  }

  .horizontal-session-demo {
    height: 52vh;
    min-height: 280px;
  }

  .horizontal-session-arrow {
    top: auto;
    bottom: 16px;
    transform: none;
  }

  .horizontal-session-arrow:hover:not(:disabled),
  .horizontal-session-arrow:focus-visible:not(:disabled) {
    transform: scale(1.06);
  }

  .scene .scene-side-arrow--left {
    left: 16px;
  }

  .scene .scene-side-arrow--right {
    right: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .vertical-session-copy,
  .horizontal-session {
    transition-duration: .01ms;
  }
}

/* The right-side experience is one independent vertical rail. It never changes
   the vertical landing-page index; it scrolls only between 01.1 and 08.1. */
.horizontal-navigation-transition #horizontal-experience {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: block;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  pointer-events: auto;
  scroll-snap-type: y proximity;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--acid) rgba(255, 255, 255, .04);
  transform: translateX(100%);
  transition: transform .72s cubic-bezier(.16, 1, .3, 1);
}

.horizontal-navigation-transition.is-moving #horizontal-experience {
  transform: translateX(0);
}

.horizontal-navigation-transition.is-closing #horizontal-experience {
  transform: translateX(100%);
}

.horizontal-navigation-transition #horizontal-experience > .horizontal-session {
  position: relative !important;
  inset: auto;
  display: grid !important;
  width: 100% !important;
  height: 100vh !important;
  min-height: 100vh !important;
  max-height: none !important;
  overflow: hidden !important;
  scroll-snap-align: start;
  scroll-snap-stop: normal;
  transform: none !important;
  pointer-events: auto;
}

.horizontal-navigation-transition #horizontal-experience > .horizontal-session .horizontal-session-body {
  overflow: hidden;
}

.horizontal-navigation-transition #horizontal-experience::-webkit-scrollbar {
  width: 10px;
}

.horizontal-navigation-transition #horizontal-experience::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, .035);
}

.horizontal-navigation-transition #horizontal-experience::-webkit-scrollbar-thumb {
  border: 3px solid transparent;
  border-radius: 999px;
  background: var(--acid);
  background-clip: padding-box;
  box-shadow: 0 0 18px rgba(155, 124, 255, .62);
}
/* 08.1 authority rail: give the embedded form its full available viewport */
@media (min-width: 851px) {
  .horizontal-navigation-transition #horizontal-experience > .horizontal-session[data-horizontal-session="authority"] {
    padding: 28px clamp(28px, 3vw, 44px) 16px;
  }
  .horizontal-navigation-transition #horizontal-experience > .horizontal-session[data-horizontal-session="authority"] .horizontal-session-body {
    gap: clamp(20px, 3vw, 42px);
    padding-top: clamp(10px, 2vh, 20px);
  }
  .horizontal-navigation-transition #horizontal-experience > .horizontal-session[data-horizontal-session="authority"] .horizontal-session-demo {
    height: 100%;
    min-height: 0;
  }
  .horizontal-navigation-transition #horizontal-experience > .horizontal-session[data-horizontal-session="authority"] .horizontal-session-copy h2 {
    font-size: clamp(2.8rem, 5.8vw, 6rem);
  }
}