:root {
  --didar-navy: #041e42;
  --didar-linen: #f2f0eb;
}

html,
body {
  max-width: 100%;
}

@supports (overflow: clip) {
  html,
  body {
    overflow-x: clip;
  }
}

.intro.intro--handover {
  --handover-progress: 1;
  --on-out: 1;
  --didar-in: 1;
  --copy-in: 1;
  --navy-in: 1;
  --on-opacity: 0;
  --on-scale: .72;
  --on-rotation: 44deg;
  --didar-scale: 1;
  --didar-rotation: 0deg;
  --copy-y: 0px;
  --line-scale: 1;
  display: block;
  min-height: 178svh;
  padding: 0;
  overflow: visible;
  background: transparent;
}

/* The generic intro artwork sits outside the viewport. It must not survive on
   the sticky handover, otherwise RTL Safari exposes its negative overflow. */
.intro.intro--handover::before,
.intro.intro--handover::after {
  content: none;
}

.intro__sticky {
  position: sticky;
  top: 0;
  isolation: isolate;
  display: grid;
  width: 100%;
  max-width: 100%;
  height: 100vh;
  height: 100svh;
  min-height: 620px;
  overflow: hidden;
  place-items: center;
  color: var(--didar-linen);
  background:
    radial-gradient(circle at 28% 82%, rgba(246, 117, 19, .38), transparent 38%),
    #111;
  touch-action: pan-y pinch-zoom;
}

.intro__sticky::before,
.intro__sticky::after {
  position: absolute;
  inset: 0;
  z-index: -2;
  content: "";
  pointer-events: none;
}

.intro__sticky::before {
  opacity: var(--navy-in);
  background:
    radial-gradient(circle at 72% 18%, rgba(44, 86, 135, .68), transparent 37%),
    radial-gradient(circle at 20% 84%, rgba(186, 137, 54, .14), transparent 38%),
    var(--didar-navy);
  transition: opacity 90ms linear;
}

.intro__sticky::after {
  z-index: 3;
  border: 1px solid rgba(242, 240, 235, .13);
  inset: 22px;
}

.handover-orbit {
  position: absolute;
  inset: 50% auto auto 50%;
  width: min(760px, 92vw);
  aspect-ratio: 1;
  border: 1px solid rgba(242, 240, 235, .15);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transform-origin: center;
  pointer-events: none;
}

.handover-orbit::before,
.handover-orbit::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(242, 240, 235, .11);
  border-radius: 50%;
}

.handover-orbit::before {
  inset: 9%;
}

.handover-orbit::after {
  inset: 22%;
  border-color: rgba(255, 184, 84, .27);
}

.identity-stage {
  position: absolute;
  z-index: 1;
  inset: 17% auto auto 50%;
  width: clamp(126px, 17vw, 210px);
  aspect-ratio: 1;
  transform: translateX(-50%);
}

.identity-mark {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  will-change: transform, opacity;
}

.identity-mark--on {
  opacity: var(--on-opacity);
  transform: rotate(var(--on-rotation)) scale(var(--on-scale));
}

.identity-mark--on img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.identity-mark--didar {
  opacity: var(--didar-in);
  transform: rotate(var(--didar-rotation)) scale(var(--didar-scale));
}

.space-mark {
  position: relative;
  display: block;
  width: clamp(54px, 7vw, 83px);
  height: clamp(83px, 10.6vw, 127px);
  flex: 0 0 auto;
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  background: var(--didar-linen);
}

.space-mark::after {
  position: absolute;
  inset: 5px;
  content: "";
  clip-path: inherit;
  background: var(--didar-navy);
}

.space-mark--small {
  width: 18px;
  height: 28px;
}

.space-mark--small::after {
  inset: 2px;
}

.intro__content {
  position: absolute;
  z-index: 2;
  inset: 51% 24px auto;
  max-width: 760px;
  margin-inline: auto;
  opacity: var(--copy-in);
  text-align: center;
  transform: translate3d(0, var(--copy-y), 0);
  will-change: transform, opacity;
}

.didar-space-lockup {
  direction: ltr;
  display: inline-flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 24px;
}

.didar-space-lockup img {
  width: clamp(112px, 15vw, 166px);
  height: auto;
  filter: invert(1);
}

.didar-space-lockup__space {
  padding-inline-start: 10px;
  border-inline-start: 1px solid rgba(242, 240, 235, .42);
  font-family: "CY", Arial, sans-serif;
  font-size: clamp(10px, 1.1vw, 13px);
  font-weight: 300;
  letter-spacing: .24em;
}

.intro--handover h1 {
  margin: 0 0 14px;
  font-size: clamp(54px, 8.4vw, 116px);
  font-weight: 300;
  line-height: 1.08;
}

.intro--handover .intro__copy {
  max-width: 610px;
  margin: 0 auto;
  color: rgba(242, 240, 235, .72);
  font-size: clamp(16px, 1.8vw, 21px);
  line-height: 2;
}

.handover-caption {
  position: absolute;
  z-index: 4;
  inset: auto 42px 38px auto;
  direction: ltr;
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0;
  color: rgba(242, 240, 235, .58);
  font-family: "CY", Arial, sans-serif;
  font-size: 9px;
  letter-spacing: .19em;
}

.handover-caption::before {
  width: 54px;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, var(--orange), var(--didar-linen));
  transform: scaleX(var(--line-scale));
  transform-origin: left;
}

@media (max-width: 720px) {
  .intro.intro--handover {
    min-height: 170svh;
  }

  .intro__sticky {
    min-height: 600px;
  }

  .intro__sticky::after {
    inset: 14px;
  }

  .identity-stage {
    top: 16%;
    width: 132px;
  }

  .intro__content {
    top: 48%;
    inset-inline: 20px;
  }

  .didar-space-lockup {
    margin-bottom: 20px;
  }

  .intro--handover h1 {
    font-size: clamp(48px, 14vw, 72px);
  }

  .intro--handover .intro__copy {
    font-size: 16px;
    line-height: 1.95;
  }

  .handover-caption {
    inset: auto 22px calc(22px + env(safe-area-inset-bottom)) auto;
    font-size: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .intro.intro--handover {
    --on-out: 1 !important;
    --didar-in: 1 !important;
    --copy-in: 1 !important;
    --navy-in: 1 !important;
    min-height: 100svh;
  }

  .intro__sticky {
    position: relative;
  }

  .identity-mark,
  .intro__content {
    transform: none;
  }

  .handover-orbit {
    transform: translate(-50%, -50%);
  }
}