.gaiamath-tv-tunnel {
  --tv-tunnel-progress: 0;
  --tv-tunnel-focus: 0;
  position: relative;
  height: 330svh;
  min-height: 1700px;
  background: #f7f7f5;
  color: #111;
  isolation: isolate;
}

.gaiamath-tv-tunnel-stage {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
  background: #f7f7f5;
}

.gaiamath-tv-tunnel-canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  touch-action: pan-y;
}

.gaiamath-tv-tunnel-heading {
  position: absolute;
  z-index: 4;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 4vw;
  text-align: center;
  pointer-events: none;
  opacity: 1;
  transform: none;
  text-shadow: none;
}

.gaiamath-tv-tunnel-caption span,
.gaiamath-tv-tunnel-depth span {
  display: block;
  margin: 0 0 12px;
  color: #68e9e6;
  font: 600 11px/1.2 Arial, sans-serif;
  letter-spacing: 0;
  text-transform: uppercase;
}

.gaiamath-tv-tunnel-heading > span {
  display: none;
}

.gaiamath-tv-tunnel-heading h2 {
  margin: 0;
  color: #0a0a0a;
  font: 700 clamp(72px, 9.2vw, 152px)/.85 Arial, Helvetica, sans-serif;
  letter-spacing: 0;
  text-transform: none;
  white-space: nowrap;
}

.gaiamath-tv-tunnel-heading p {
  margin: 24px 0 0;
  color: #575757;
  font: 400 clamp(16px, 1.55vw, 25px)/1.25 Arial, Helvetica, sans-serif;
  letter-spacing: 0;
  text-shadow: 0 0 12px #fff, 0 0 12px #fff;
}

.gaiamath-tv-tunnel-depth {
  display: none;
  position: absolute;
  grid-template-columns: auto 118px 32px;
  align-items: center;
  gap: 12px;
  color: #d8c194;
  pointer-events: none;
  text-shadow: 0 2px 10px #000;
}

.gaiamath-tv-tunnel-depth span {
  margin: 0;
  color: #c9b992;
}

.gaiamath-tv-tunnel-depth i {
  position: relative;
  display: block;
  width: 118px;
  height: 1px;
  background: rgba(225, 203, 153, .34);
}

.gaiamath-tv-tunnel-depth b {
  position: absolute;
  inset: -1px auto auto 0;
  display: block;
  width: calc(var(--tv-tunnel-progress) * 100%);
  height: 3px;
  background: #62e5e3;
  box-shadow: 0 0 12px rgba(98, 229, 227, .92);
}

.gaiamath-tv-tunnel-depth strong {
  min-width: 2ch;
  color: #f1d69c;
  font: 400 14px/1 Georgia, "Times New Roman", serif;
  letter-spacing: 0;
}

.gaiamath-tv-tunnel-reticle {
  position: absolute;
  z-index: 5;
  left: var(--tv-pointer-x, 50%);
  top: var(--tv-pointer-y, 50%);
  width: 42px;
  height: 42px;
  border: 1px solid rgba(0, 0, 0, .58);
  border-radius: 50%;
  opacity: var(--tv-tunnel-focus);
  transform: translate(-50%, -50%) scale(calc(.72 + var(--tv-tunnel-focus) * .28));
  transition: opacity 160ms ease, transform 160ms ease;
  pointer-events: none;
  box-shadow: 0 0 18px rgba(255, 255, 255, .82);
}

.gaiamath-tv-tunnel-reticle::before,
.gaiamath-tv-tunnel-reticle::after,
.gaiamath-tv-tunnel-reticle i::before,
.gaiamath-tv-tunnel-reticle i::after {
  content: "";
  position: absolute;
  background: #101010;
}

.gaiamath-tv-tunnel-reticle::before {
  left: 50%; top: -7px; width: 1px; height: 13px;
}

.gaiamath-tv-tunnel-reticle::after {
  left: 50%; bottom: -7px; width: 1px; height: 13px;
}

.gaiamath-tv-tunnel-reticle i::before {
  top: 50%; left: -7px; width: 13px; height: 1px;
}

.gaiamath-tv-tunnel-reticle i::after {
  top: 50%; right: -7px; width: 13px; height: 1px;
}

.gaiamath-tv-tunnel-takeover {
  position: absolute;
  z-index: 12;
  inset: 0;
  overflow: hidden;
  background: #000;
  opacity: 0;
  visibility: hidden;
  transform: scale(.965);
  transition: opacity 140ms ease, transform 220ms cubic-bezier(.16, 1, .3, 1), visibility 0s linear 220ms;
  pointer-events: none;
}

.gaiamath-tv-tunnel-takeover.is-active {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
  transition-delay: 0s;
}

.gaiamath-tv-tunnel-takeover video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  background: #000;
}

.gaiamath-tv-tunnel-takeover-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.05) 58%, rgba(0,0,0,.78));
  pointer-events: none;
}

.gaiamath-tv-tunnel-caption {
  position: absolute;
  z-index: 2;
  left: 5%;
  bottom: 6%;
  max-width: min(720px, 72%);
  text-shadow: 0 2px 16px #000;
}

.gaiamath-tv-tunnel-caption span {
  margin-bottom: 8px;
}

.gaiamath-tv-tunnel-caption strong {
  display: block;
  color: #fff4dd;
  font: 400 40px/1.05 Georgia, "Times New Roman", serif;
  letter-spacing: 0;
}

.gaiamath-tv-tunnel-close {
  position: absolute;
  z-index: 3;
  top: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(242, 216, 160, .72);
  border-radius: 50%;
  background: rgba(0,0,0,.42);
  color: #fff1d4;
  font: 300 32px/38px Arial, sans-serif;
  pointer-events: auto;
}

.gaiamath-tv-tunnel-fallback {
  position: absolute;
  inset: 0;
  display: none;
  grid-template-columns: repeat(3, 1fr);
  align-items: center;
  gap: 2vw;
  padding: 11vw 4vw;
  background: #f7f7f5;
}

.gaiamath-tv-tunnel-fallback video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 1px solid rgba(0, 0, 0, .78);
  box-shadow: 0 12px 34px rgba(0, 0, 0, .12);
}

.gaiamath-tv-tunnel.is-reduced-motion {
  height: 100svh;
  min-height: 620px;
}

.gaiamath-tv-tunnel.is-reduced-motion .gaiamath-tv-tunnel-canvas,
.gaiamath-tv-tunnel.is-webgl-unavailable .gaiamath-tv-tunnel-canvas {
  display: none;
}

.gaiamath-tv-tunnel.is-reduced-motion .gaiamath-tv-tunnel-fallback,
.gaiamath-tv-tunnel.is-webgl-unavailable .gaiamath-tv-tunnel-fallback {
  display: grid;
}

@media (max-width: 760px) {
  .gaiamath-tv-tunnel {
    height: 270svh;
    min-height: 1500px;
  }

  .gaiamath-tv-tunnel-stage {
    min-height: 520px;
  }

  .gaiamath-tv-tunnel-heading {
    inset: 0;
    width: 100%;
    padding: 7vw;
  }

  .gaiamath-tv-tunnel-heading h2 {
    font-size: clamp(46px, 14vw, 76px);
  }

  .gaiamath-tv-tunnel-heading p {
    margin-top: 16px;
    font-size: 15px;
  }

  .gaiamath-tv-tunnel-depth {
    right: 5%;
    bottom: 4.5%;
    grid-template-columns: auto 72px 25px;
    gap: 8px;
  }

  .gaiamath-tv-tunnel-depth i {
    width: 72px;
  }

  .gaiamath-tv-tunnel-caption {
    left: 6%;
    bottom: 8%;
  }

  .gaiamath-tv-tunnel-caption strong {
    font-size: 28px;
  }

  .gaiamath-tv-tunnel-takeover video {
    object-fit: contain;
  }

  .gaiamath-tv-tunnel-close {
    top: 16px;
    right: 16px;
  }

  .gaiamath-tv-tunnel-fallback {
    grid-template-columns: 1fr;
    padding: 24vh 8vw 7vh;
  }

  .gaiamath-tv-tunnel-fallback video:nth-child(n + 2) {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .gaiamath-tv-tunnel-takeover,
  .gaiamath-tv-tunnel-reticle {
    transition-duration: 0.01ms;
  }
}