/* Homepage-only frontier journey. The static DOM remains complete without script. */
.frontier-journey {
  --frontier-progress: 0;
  --frontier-haze: rgba(103, 198, 216, .13);
  --frontier-light: rgba(207, 129, 99, .1);
  position: relative;
  z-index: 1;
  overflow: clip;
  padding: clamp(72px, 8vw, 116px) 0;
  color: #fffdf8;
  background: #11140f;
}

.frontier-journey::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  background:
    radial-gradient(circle at 72% 34%, rgba(85, 190, 211, .11), transparent 31rem),
    radial-gradient(circle at 17% 78%, rgba(185, 111, 82, .09), transparent 26rem),
    linear-gradient(135deg, #171914, #0c100f 68%, #121c20);
}

.frontier-viewport {
  position: relative;
  width: min(1440px, calc(100vw - 48px));
  min-height: min(940px, calc(100svh - 48px));
  margin-inline: auto;
  overflow: hidden;
  border: 1px solid rgba(255, 253, 248, .13);
  border-radius: clamp(28px, 4vw, 58px);
  background: #0a0f12;
  box-shadow: 0 40px 120px rgba(0, 0, 0, .34);
  isolation: isolate;
}

.frontier-media,
.frontier-fallback,
.frontier-fallback img,
.frontier-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.frontier-media {
  z-index: -1;
  margin: 0;
  overflow: hidden;
  background: #091014;
}

.frontier-fallback,
.frontier-fallback img {
  display: block;
}

.frontier-fallback img {
  object-fit: cover;
  object-position: center;
  transform: scale(1.025);
}

.frontier-canvas {
  z-index: 1;
  display: block;
  pointer-events: none;
}

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

.frontier-media::before {
  background:
    linear-gradient(90deg, rgba(8, 12, 11, .91) 0%, rgba(8, 12, 11, .72) 31%, rgba(8, 12, 11, .14) 63%, rgba(8, 12, 11, .17) 100%),
    linear-gradient(180deg, rgba(7, 10, 9, .62), transparent 24%, transparent 72%, rgba(7, 10, 9, .82));
}

.frontier-media::after {
  opacity: .3;
  background-image:
    linear-gradient(rgba(255, 253, 248, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 253, 248, .035) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: linear-gradient(90deg, #000, transparent 72%);
}

.frontier-content {
  position: relative;
  z-index: 3;
  min-height: inherit;
  padding: clamp(70px, 7vw, 110px) clamp(28px, 7vw, 104px) clamp(96px, 8vw, 122px);
  display: grid;
  align-content: space-between;
  gap: 72px;
}

.frontier-heading {
  width: min(650px, 54vw);
}

.frontier-eyebrow,
.frontier-stage article > p:first-child,
.frontier-progress-label {
  margin: 0;
  color: rgba(255, 253, 248, .62);
  font: 750 .66rem/1.3 var(--sans);
  letter-spacing: .16em;
  text-transform: uppercase;
}

.frontier-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #84d0dd;
}

.frontier-eyebrow::before {
  width: 32px;
  height: 1px;
  content: "";
  background: currentColor;
}

.frontier-heading h2 {
  max-width: 620px;
  margin: 22px 0 0;
  font: 420 clamp(3.4rem, 6.2vw, 6.9rem)/.88 var(--serif);
  letter-spacing: -.062em;
}

.frontier-heading > p:last-child {
  max-width: 540px;
  margin: 26px 0 0;
  color: rgba(255, 253, 248, .7);
  font-size: clamp(.94rem, 1.25vw, 1.12rem);
  line-height: 1.62;
}

.frontier-stages {
  width: min(760px, 58vw);
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  list-style: none;
}

.frontier-stage {
  min-width: 0;
}

.frontier-stage article {
  height: 100%;
  min-height: 210px;
  padding: 24px;
  border: 1px solid rgba(255, 253, 248, .14);
  border-radius: 22px;
  background: rgba(11, 15, 13, .68);
  box-shadow: 0 18px 45px rgba(0, 0, 0, .16);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.frontier-stage article > p:first-child {
  color: #82cedb;
}

.frontier-stage article > p:first-child span {
  margin-right: 8px;
  color: #cf8163;
}

.frontier-stage h3 {
  margin: 30px 0 0;
  font: 430 clamp(1.65rem, 2.2vw, 2.35rem)/1 var(--serif);
  letter-spacing: -.045em;
}

.frontier-stage article > p:last-child {
  max-width: 39ch;
  margin: 15px 0 0;
  color: rgba(255, 253, 248, .66);
  font-size: .86rem;
  line-height: 1.6;
}

.frontier-caption {
  position: absolute;
  z-index: 4;
  right: clamp(28px, 5vw, 72px);
  bottom: clamp(30px, 4vw, 54px);
  width: min(410px, 33vw);
  margin: 0;
  color: rgba(255, 253, 248, .53);
  font-size: .66rem;
  line-height: 1.5;
  text-align: right;
}

.frontier-caption strong {
  color: rgba(255, 253, 248, .82);
  font-weight: 700;
}

.frontier-skip {
  position: absolute;
  z-index: 8;
  top: clamp(92px, 10vw, 142px);
  right: max(42px, calc((100vw - min(1440px, calc(100vw - 48px))) / 2 + 30px));
  min-height: 40px;
  padding: 10px 15px;
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(255, 253, 248, .24);
  border-radius: 999px;
  color: rgba(255, 253, 248, .78);
  background: rgba(9, 13, 12, .68);
  font: 700 .64rem/1 var(--sans);
  letter-spacing: .1em;
  text-decoration: none;
  text-transform: uppercase;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.frontier-skip:hover,
.frontier-skip:focus-visible {
  color: #10130f;
  background: #fffdf8;
}

.frontier-progress {
  position: absolute;
  z-index: 5;
  left: clamp(28px, 7vw, 104px);
  bottom: clamp(34px, 4vw, 58px);
  width: min(300px, 28vw);
}

.frontier-progress-line {
  display: block;
  width: 100%;
  height: 2px;
  overflow: hidden;
  background: rgba(255, 253, 248, .18);
}

.frontier-progress-line i {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, #c77759, #68c7d8);
  transform: scaleX(var(--frontier-progress));
  transform-origin: left center;
  will-change: transform;
}

.frontier-progress-label {
  display: block;
  margin-top: 12px;
  font-size: .54rem;
}

/* The controller opts into the sticky sequence only after it is ready. */
.frontier-journey.is-enhanced,
.frontier-journey[data-frontier-enhanced="true"] {
  height: 340svh;
  padding: 0;
}

.frontier-journey.is-enhanced .frontier-viewport,
.frontier-journey[data-frontier-enhanced="true"] .frontier-viewport {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100svh;
  min-height: 0;
  border: 0;
  border-radius: 0;
}

.frontier-journey.is-enhanced .frontier-content,
.frontier-journey[data-frontier-enhanced="true"] .frontier-content {
  width: min(1440px, calc(100vw - 48px));
  height: 100%;
  min-height: 0;
  margin-inline: auto;
  padding-top: clamp(98px, 11vh, 132px);
  padding-bottom: clamp(88px, 10vh, 116px);
}

.frontier-journey.is-enhanced .frontier-stages,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stages {
  position: relative;
  width: min(520px, 42vw);
  height: 250px;
  display: block;
}

.frontier-journey.is-enhanced .frontier-stage,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transform: translate3d(0, 26px, 0);
  transition: opacity 380ms ease, transform 520ms cubic-bezier(.2, .75, .25, 1), visibility 0s linear 520ms;
}

.frontier-journey.is-enhanced .frontier-stage.is-active,
.frontier-journey.is-enhanced .frontier-stage[data-active="true"],
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage.is-active,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage[data-active="true"] {
  opacity: 1;
  visibility: visible;
  transform: translate3d(0, 0, 0);
  transition-delay: 70ms, 70ms, 0s;
}

.frontier-journey.is-enhanced .frontier-stage article,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage article {
  min-height: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.frontier-journey.is-enhanced .frontier-stage h3,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage h3 {
  font-size: clamp(2rem, 3.1vw, 3.5rem);
}

@media (max-width: 820px) {
  .frontier-journey,
  .frontier-journey.is-enhanced,
  .frontier-journey[data-frontier-enhanced="true"] {
    height: auto;
    padding: 72px 0;
  }

  .frontier-viewport,
  .frontier-journey.is-enhanced .frontier-viewport,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-viewport {
    position: relative;
    top: auto;
    width: min(100% - 28px, 760px);
    height: auto;
    min-height: 0;
    border: 1px solid rgba(255, 253, 248, .13);
    border-radius: 28px;
  }

  .frontier-media {
    position: relative;
    z-index: 0;
    height: auto;
    aspect-ratio: 1.28 / 1;
  }

  .frontier-media::before {
    background: linear-gradient(180deg, transparent 35%, rgba(8, 12, 11, .54));
  }

  .frontier-media::after,
  .frontier-canvas {
    display: none;
  }

  .frontier-fallback img {
    object-position: 62% center;
    transform: none;
  }

  .frontier-content,
  .frontier-journey.is-enhanced .frontier-content,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-content {
    width: auto;
    height: auto;
    padding: 36px 22px 46px;
    display: block;
  }

  .frontier-heading {
    width: 100%;
  }

  .frontier-heading h2 {
    font-size: clamp(3.2rem, 15vw, 5.5rem);
  }

  .frontier-stages,
  .frontier-journey.is-enhanced .frontier-stages,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stages {
    position: static;
    width: 100%;
    height: auto;
    margin-top: 48px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
  }

  .frontier-stage,
  .frontier-journey.is-enhanced .frontier-stage,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage {
    position: static;
    inset: auto;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }

  .frontier-stage article,
  .frontier-journey.is-enhanced .frontier-stage article,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage article {
    min-height: 0;
    padding: 28px 0 30px;
    border: 0;
    border-top: 1px solid rgba(255, 253, 248, .14);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .frontier-stage h3,
  .frontier-journey.is-enhanced .frontier-stage h3,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage h3 {
    margin-top: 20px;
    font-size: clamp(1.9rem, 8vw, 2.8rem);
  }

  .frontier-stage article > p:last-child {
    font-size: .9rem;
  }

  .frontier-caption {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    width: auto;
    padding: 52px 20px 16px;
    color: rgba(255, 253, 248, .58);
    background: linear-gradient(transparent, rgba(5, 9, 10, .94));
    text-align: left;
  }

  .frontier-progress {
    display: none;
  }

  .frontier-skip {
    position: relative;
    top: auto;
    right: auto;
    margin: 0 14px 14px;
  }
}

@media (max-width: 480px) {
  .frontier-journey,
  .frontier-journey.is-enhanced,
  .frontier-journey[data-frontier-enhanced="true"] {
    padding: 54px 0;
  }

  .frontier-media {
    aspect-ratio: 1 / .88;
  }

  .frontier-heading h2 {
    font-size: clamp(3rem, 16vw, 4.5rem);
  }
}

@media (prefers-reduced-motion: reduce) and (min-width: 821px) {
  .frontier-journey,
  .frontier-journey.is-enhanced,
  .frontier-journey[data-frontier-enhanced="true"] {
    height: auto;
    padding: clamp(72px, 8vw, 116px) 0;
  }

  .frontier-viewport,
  .frontier-journey.is-enhanced .frontier-viewport,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-viewport {
    position: relative;
    top: auto;
    width: min(1440px, calc(100vw - 48px));
    height: auto;
    min-height: min(940px, calc(100svh - 48px));
    border: 1px solid rgba(255, 253, 248, .13);
    border-radius: clamp(28px, 4vw, 58px);
  }

  .frontier-content,
  .frontier-journey.is-enhanced .frontier-content,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-content {
    width: auto;
    height: auto;
    min-height: inherit;
    padding: clamp(70px, 7vw, 110px) clamp(28px, 7vw, 104px) clamp(96px, 8vw, 122px);
  }

  .frontier-stages,
  .frontier-journey.is-enhanced .frontier-stages,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stages {
    position: static;
    width: min(760px, 58vw);
    height: auto;
    display: grid;
    grid-template-columns: 1fr;
  }

  .frontier-stage,
  .frontier-journey.is-enhanced .frontier-stage,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }

  .frontier-stage article,
  .frontier-journey.is-enhanced .frontier-stage article,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage article {
    min-height: 210px;
    padding: 24px;
    border: 1px solid rgba(255, 253, 248, .14);
    border-radius: 22px;
    background: rgba(11, 15, 13, .68);
    box-shadow: 0 18px 45px rgba(0, 0, 0, .16);
  }

  .frontier-canvas,
  .frontier-progress {
    display: none;
  }
}

@media print {
  .frontier-journey {
    break-inside: avoid;
    padding: 32px 0;
    color: var(--ink);
    background: #fff;
  }

  .frontier-media,
  .frontier-progress,
  .frontier-skip {
    display: none;
  }

  .frontier-viewport {
    min-height: 0;
    border-color: var(--line);
    background: #fff;
    box-shadow: none;
  }

  .frontier-content {
    min-height: 0;
    padding: 32px;
  }

  .frontier-heading,
  .frontier-stages {
    width: 100%;
  }

  .frontier-stage article {
    color: var(--ink);
    background: #fff;
  }
}
/* City-to-product journey v2: semantic panels layered over the generated concept art. */
.frontier-journey {
  --frontier-pan-x: 0%;
  --frontier-pan-y: 0%;
  --frontier-pan-scale: 1.045;
}

.frontier-fallback img {
  object-position: center;
  transform: translate3d(var(--frontier-pan-x), var(--frontier-pan-y), 0) scale(var(--frontier-pan-scale));
  transition: transform 920ms cubic-bezier(.2, .72, .2, 1);
  will-change: transform;
}

.frontier-journey[data-frontier-active="shanghai"] {
  --frontier-pan-x: 8%;
  --frontier-pan-y: 1.5%;
  --frontier-pan-scale: 1.14;
}

.frontier-journey[data-frontier-active="irvine"] {
  --frontier-pan-x: 5%;
  --frontier-pan-y: .8%;
  --frontier-pan-scale: 1.12;
}

.frontier-journey[data-frontier-active="san-francisco"] {
  --frontier-pan-x: 3.5%;
  --frontier-pan-y: .2%;
  --frontier-pan-scale: 1.1;
}

.frontier-journey[data-frontier-active="evidence"] {
  --frontier-pan-x: 2%;
  --frontier-pan-y: 0%;
  --frontier-pan-scale: 1.1;
}

.frontier-journey[data-frontier-active="model"] {
  --frontier-pan-x: -1%;
  --frontier-pan-y: -.5%;
  --frontier-pan-scale: 1.11;
}

.frontier-journey[data-frontier-active="products"] {
  --frontier-pan-x: -5%;
  --frontier-pan-y: 0%;
  --frontier-pan-scale: 1.13;
}

.frontier-journey[data-frontier-active="world"] {
  --frontier-pan-x: -9%;
  --frontier-pan-y: .8%;
  --frontier-pan-scale: 1.16;
}

.frontier-heading {
  width: min(760px, 61vw);
  transition: opacity 420ms ease, transform 620ms cubic-bezier(.2, .75, .25, 1), visibility 0s linear 620ms;
}

.frontier-journey[data-frontier-enhanced="true"]:not([data-frontier-active="shanghai"]) .frontier-heading {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate3d(0, -18px, 0);
}

.frontier-journey[data-frontier-enhanced="true"]:not([data-frontier-active="shanghai"]) .frontier-media::before {
  background:
    radial-gradient(ellipse at 50% 76%, var(--frontier-haze), transparent 42%),
    radial-gradient(circle at 76% 23%, var(--frontier-light), transparent 29rem),
    linear-gradient(90deg, rgba(5, 10, 12, .27), rgba(5, 10, 12, .025) 34%, rgba(5, 10, 12, .025) 66%, rgba(5, 10, 12, .34)),
    linear-gradient(180deg, rgba(5, 9, 10, .25), transparent 24%, transparent 72%, rgba(5, 9, 10, .82));
}

.frontier-journey[data-frontier-enhanced="true"][data-frontier-active="world"] .frontier-media::before {
  background:
    radial-gradient(ellipse at 35% 58%, rgba(55, 169, 194, .08), transparent 44%),
    linear-gradient(90deg, rgba(5, 10, 12, .08) 0%, rgba(5, 10, 12, .015) 61%, rgba(5, 10, 12, .42) 100%),
    linear-gradient(180deg, rgba(5, 9, 10, .16), transparent 25%, transparent 74%, rgba(5, 9, 10, .8));
}

.frontier-heading h2 {
  max-width: 760px;
  font-size: clamp(3.2rem, 5.25vw, 5.95rem);
}

.frontier-stage article {
  position: relative;
  overflow: hidden;
}

.frontier-stage-copy {
  max-width: 58ch;
  margin: 15px 0 0;
  color: rgba(255, 253, 248, .7);
  font-size: .86rem;
  line-height: 1.6;
}

.frontier-logic-rail {
  position: relative;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  perspective: 620px;
  list-style: none;
}

.frontier-logic-rail--four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.frontier-logic-rail::before {
  position: absolute;
  top: 50%;
  right: 8%;
  left: 8%;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, rgba(100, 198, 216, .18), rgba(100, 198, 216, .7), rgba(216, 133, 99, .42));
  transform: translateY(-50%);
}

.frontier-logic-rail li {
  position: relative;
  z-index: 1;
  min-height: 42px;
  padding: 10px 8px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(159, 225, 232, .23);
  border-radius: 11px;
  background: linear-gradient(145deg, rgba(20, 38, 42, .9), rgba(11, 18, 18, .82));
  box-shadow: 0 10px 24px rgba(0, 0, 0, .22);
  transform: translate3d(0, -2px, 0) rotateX(2deg);
}

.frontier-logic-rail li:nth-child(even) {
  transform: translate3d(0, 3px, 0) rotateX(-2deg);
}

.frontier-logic-rail span {
  color: rgba(255, 253, 248, .82);
  font: 760 .57rem/1.2 var(--sans);
  letter-spacing: .09em;
  text-align: center;
  text-transform: uppercase;
}

.frontier-world-nodes {
  position: relative;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 7px;
  list-style: none;
}

.frontier-world-nodes::before {
  position: absolute;
  top: 17px;
  right: 4%;
  left: 4%;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, rgba(255, 253, 248, .08), rgba(255, 253, 248, .42), rgba(255, 253, 248, .08));
}

.frontier-world-nodes li {
  position: relative;
  z-index: 1;
}

.frontier-world-nodes a {
  min-height: 48px;
  padding: 7px 4px;
  display: grid;
  place-items: center;
  gap: 5px;
  border: 1px solid rgba(255, 253, 248, .14);
  border-radius: 12px;
  color: rgba(255, 253, 248, .76);
  background: rgba(8, 13, 13, .78);
  box-shadow: 0 9px 22px rgba(0, 0, 0, .18);
  font: 720 .58rem/1 var(--sans);
  letter-spacing: .06em;
  text-decoration: none;
  text-transform: uppercase;
  transform: translate3d(0, -2px, 0);
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.frontier-world-nodes li:nth-child(even) a {
  transform: translate3d(0, 3px, 0);
}

.frontier-world-nodes a::before {
  width: 10px;
  height: 10px;
  border: 2px solid rgba(255, 253, 248, .72);
  border-radius: 50%;
  content: "";
  background: var(--world-node, #74c8d5);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--world-node, #74c8d5) 18%, transparent);
}

.frontier-stage-actions {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.frontier-stage-actions a {
  min-height: 36px;
  padding: 9px 13px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 253, 248, .18);
  border-radius: 999px;
  color: rgba(255, 253, 248, .84);
  background: rgba(11, 18, 18, .72);
  font: 740 .62rem/1 var(--sans);
  letter-spacing: .07em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.frontier-stage-actions a span {
  color: #83cfdb;
  font-size: .82rem;
}

.frontier-stage-actions a:focus-visible,
.frontier-world-nodes a:focus-visible {
  outline: 2px solid #fffdf8;
  outline-offset: 3px;
}

@media (any-hover: hover) {
  .frontier-stage-actions a:hover,
  .frontier-world-nodes a:hover {
    color: #10130f;
    border-color: #fffdf8;
    background: #fffdf8;
    transform: translate3d(0, -2px, 0);
  }
}

.frontier-journey.is-enhanced,
.frontier-journey[data-frontier-enhanced="true"] {
  height: 570svh;
}

.frontier-journey.is-enhanced .frontier-stages,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stages {
  width: min(720px, 58vw);
  height: 370px;
}

.frontier-journey.is-enhanced .frontier-stage article,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage article {
  min-height: 0;
  padding: clamp(20px, 2.25vw, 28px);
  border: 1px solid rgba(255, 253, 248, .16);
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(10, 16, 16, .91), rgba(10, 17, 19, .72));
  box-shadow: 0 24px 64px rgba(0, 0, 0, .26);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.frontier-journey.is-enhanced .frontier-stage h3,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage h3 {
  margin-top: 20px;
  font-size: clamp(1.9rem, 2.7vw, 3rem);
}

.frontier-journey.is-enhanced .frontier-stage-copy,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage-copy {
  font-size: clamp(.78rem, .9vw, .88rem);
}

@media (max-width: 1120px) and (min-width: 821px) {
  .frontier-heading {
    width: min(690px, 72vw);
  }

  .frontier-heading h2 {
    font-size: clamp(3rem, 5.6vw, 5rem);
  }

  .frontier-journey.is-enhanced .frontier-stages,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stages {
    width: min(700px, 76vw);
  }
}

@media (max-height: 780px) and (min-width: 821px) {
  .frontier-journey.is-enhanced .frontier-content,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-content {
    padding-top: clamp(62px, 8vh, 76px);
    padding-bottom: clamp(50px, 7vh, 62px);
    gap: 22px;
  }

  .frontier-heading {
    width: min(680px, 64vw);
  }

  .frontier-heading h2 {
    margin-top: 14px;
    font-size: clamp(2.55rem, 4.5vw, 4.15rem);
    line-height: .9;
  }

  .frontier-heading > p:last-child {
    max-width: 500px;
    margin-top: 14px;
    font-size: .88rem;
    line-height: 1.45;
  }

  .frontier-journey.is-enhanced .frontier-stages,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stages {
    width: min(680px, 62vw);
    height: 310px;
  }

  .frontier-journey.is-enhanced .frontier-stage article,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage article {
    padding: 18px 20px;
    border-radius: 20px;
  }

  .frontier-journey.is-enhanced .frontier-stage h3,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage h3 {
    margin-top: 12px;
    font-size: clamp(1.55rem, 2.35vw, 2.25rem);
  }

  .frontier-journey.is-enhanced .frontier-stage-copy,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage-copy {
    margin-top: 9px;
    font-size: .75rem;
    line-height: 1.43;
  }

  .frontier-logic-rail,
  .frontier-world-nodes {
    margin-top: 11px;
    gap: 6px;
  }

  .frontier-logic-rail li {
    min-height: 34px;
    padding: 6px;
  }

  .frontier-world-nodes a {
    min-height: 39px;
    padding: 5px 3px;
    gap: 3px;
  }

  .frontier-world-nodes a::before {
    width: 8px;
    height: 8px;
  }

  .frontier-stage-actions {
    margin-top: 10px;
    gap: 6px;
  }

  .frontier-stage-actions a {
    min-height: 31px;
    padding: 7px 10px;
    font-size: .56rem;
  }

  .frontier-progress {
    bottom: 18px;
  }

  .frontier-caption {
    display: none;
  }
}

@media (max-width: 820px) {
  .frontier-media {
    aspect-ratio: 4 / 3;
  }

  .frontier-fallback img {
    object-position: center;
    transform: none;
    transition: none;
    will-change: auto;
  }

  .frontier-heading {
    width: 100%;
  }

  .frontier-stage-copy {
    max-width: 62ch;
    font-size: .9rem;
  }

  .frontier-logic-rail {
    margin-top: 18px;
  }

  .frontier-world-nodes {
    grid-template-columns: repeat(auto-fit, minmax(62px, 1fr));
  }

  .frontier-stage-actions {
    margin-top: 17px;
  }

  .frontier-stage-actions a {
    min-height: 40px;
  }
}

@media (max-width: 480px) {
  .frontier-media {
    aspect-ratio: 4 / 3;
  }

  .frontier-logic-rail--four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .frontier-world-nodes {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .frontier-fallback img,
  .frontier-stage-actions a,
  .frontier-world-nodes a {
    transition: none;
  }

  .frontier-fallback img {
    object-position: center;
    transform: none;
    will-change: auto;
  }

  .frontier-logic-rail li,
  .frontier-logic-rail li:nth-child(even),
  .frontier-world-nodes a,
  .frontier-world-nodes li:nth-child(even) a {
    transform: none;
  }
}

@media print {
  .frontier-stage-copy,
  .frontier-stage-actions a,
  .frontier-world-nodes a,
  .frontier-logic-rail span {
    color: var(--ink);
  }

  .frontier-logic-rail li,
  .frontier-world-nodes a,
  .frontier-stage-actions a {
    border-color: var(--line);
    background: #fff;
    box-shadow: none;
  }

  .frontier-stage-actions a {
    text-decoration: underline;
  }
}

/* City journey v3: alternating narrative and accessible figure panels. */
.frontier-media::before {
  background:
    radial-gradient(ellipse at 52% 78%, var(--frontier-haze), transparent 39%),
    radial-gradient(circle at 77% 24%, var(--frontier-light), transparent 27%),
    linear-gradient(90deg, rgba(6, 10, 11, .91), rgba(6, 10, 11, .18) 36%, rgba(6, 10, 11, .12) 64%, rgba(6, 10, 11, .88)),
    linear-gradient(180deg, rgba(6, 9, 9, .68), transparent 25%, transparent 70%, rgba(6, 9, 9, .9));
}

.frontier-media::after {
  opacity: .34;
  box-shadow: inset 0 0 120px rgba(0, 0, 0, .24);
  mask-image: linear-gradient(90deg, #000, transparent 43%, transparent 57%, #000);
}

.frontier-journey[data-frontier-active="shanghai"] { --frontier-pan-x: 5%; --frontier-pan-y: 1.5%; --frontier-pan-scale: 1.12; --frontier-haze: rgba(80, 191, 216, .15); --frontier-light: rgba(220, 131, 91, .13); }
.frontier-journey[data-frontier-active="irvine"] { --frontier-pan-x: 3%; --frontier-pan-y: .7%; --frontier-pan-scale: 1.1; --frontier-haze: rgba(127, 180, 152, .14); --frontier-light: rgba(226, 185, 104, .12); }
.frontier-journey[data-frontier-active="san-jose"] { --frontier-pan-x: 1%; --frontier-pan-y: .2%; --frontier-pan-scale: 1.095; --frontier-haze: rgba(86, 173, 205, .14); --frontier-light: rgba(190, 133, 100, .11); }
.frontier-journey[data-frontier-active="san-francisco"] { --frontier-pan-x: 0%; --frontier-pan-y: -.2%; --frontier-pan-scale: 1.1; --frontier-haze: rgba(104, 181, 201, .16); --frontier-light: rgba(234, 159, 104, .12); }
.frontier-journey[data-frontier-active="evidence"] { --frontier-pan-x: -2%; --frontier-pan-y: 0%; --frontier-pan-scale: 1.1; }
.frontier-journey[data-frontier-active="review"] { --frontier-pan-x: -4%; --frontier-pan-y: -.4%; --frontier-pan-scale: 1.11; }
.frontier-journey[data-frontier-active="products"] { --frontier-pan-x: -6%; --frontier-pan-y: 0%; --frontier-pan-scale: 1.13; }
.frontier-journey[data-frontier-active="world"] { --frontier-pan-x: -9%; --frontier-pan-y: .8%; --frontier-pan-scale: 1.16; --frontier-haze: rgba(79, 155, 210, .17); --frontier-light: rgba(122, 211, 221, .1); }

@media (min-width: 821px) {
  .frontier-journey[data-frontier-enhanced="true"] .frontier-fallback img {
    opacity: .58;
    filter: saturate(.72) brightness(.68) contrast(1.05);
  }

  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage:not(.is-active):not([data-active="true"]) {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }
}

.frontier-panel-copy,
.frontier-panel-figure {
  position: relative;
  min-width: 0;
  border: 1px solid rgba(255, 253, 248, .15);
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(9, 15, 16, .91), rgba(11, 19, 21, .7));
  box-shadow: 0 24px 64px rgba(0, 0, 0, .25);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.frontier-panel-copy {
  padding: clamp(21px, 2.2vw, 30px);
}

.frontier-panel-copy > p:first-child {
  margin: 0;
  color: #82cedb;
  font: 750 .66rem/1.3 var(--sans);
  letter-spacing: .16em;
  text-transform: uppercase;
}

.frontier-panel-copy > p:first-child span {
  margin-right: 8px;
  color: #cf8163;
}

.frontier-panel-copy h3 {
  margin: 19px 0 0;
  font: 430 clamp(1.9rem, 2.55vw, 2.9rem)/1 var(--serif);
  letter-spacing: -.045em;
}

.frontier-panel-copy .frontier-stage-copy {
  max-width: 55ch;
  margin-top: 14px;
  color: rgba(255, 253, 248, .72);
  font-size: clamp(.86rem, .95vw, .95rem);
  line-height: 1.58;
}

.frontier-panel-figure {
  margin: 0;
  padding: 20px;
  align-self: center;
  color: rgba(255, 253, 248, .8);
  background: linear-gradient(150deg, rgba(17, 31, 34, .83), rgba(7, 13, 15, .74));
}

.frontier-panel-figure::before {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  content: "";
  opacity: .5;
  background: radial-gradient(circle at 72% 22%, rgba(105, 202, 216, .16), transparent 42%);
  pointer-events: none;
}

.frontier-panel-figure > * { position: relative; z-index: 1; }

.frontier-figure-kicker {
  margin: 0;
  color: #82cedb;
  font: 780 .56rem/1.3 var(--sans);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.frontier-panel-figure > svg {
  width: 100%;
  margin-top: 14px;
  display: block;
  fill: none;
  stroke: rgba(255, 253, 248, .54);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.25;
}

.frontier-panel-figure > svg circle {
  fill: rgba(104, 199, 216, .12);
  stroke: #cf8163;
}

.frontier-model-ledger {
  margin: 16px 0 17px;
  display: grid;
  border: 1px solid rgba(132, 211, 221, .14);
  border-radius: 14px;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(105, 202, 216, .07), transparent 52%),
    rgba(4, 12, 15, .52);
  box-shadow: inset 0 1px rgba(255, 255, 255, .035), 0 16px 34px rgba(0, 0, 0, .16);
}

.frontier-model-ledger div {
  min-height: 39px;
  padding: 8px 10px;
  display: grid;
  grid-template-columns: 88px 1fr;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid rgba(255, 253, 248, .075);
}

.frontier-model-ledger div:last-child { border-bottom: 0; }

.frontier-model-ledger dt,
.frontier-model-ledger dd { margin: 0; }

.frontier-model-ledger dt {
  color: rgba(130, 206, 219, .76);
  font: 760 .52rem/1.25 var(--sans);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.frontier-model-ledger dd {
  color: rgba(255, 253, 248, .76);
  font: 560 .66rem/1.32 var(--sans);
  letter-spacing: .015em;
}

.frontier-panel-figure figcaption {
  min-height: 2.8em;
  margin-top: 14px;
  color: rgba(255, 253, 248, .54);
  font-size: .68rem;
  line-height: 1.42;
}

.frontier-landmark-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.frontier-landmark-list button {
  min-height: 34px;
  padding: 8px 11px;
  border: 1px solid rgba(255, 253, 248, .17);
  border-radius: 999px;
  color: rgba(255, 253, 248, .75);
  background: rgba(7, 14, 16, .66);
  font: 740 .7rem/1 var(--sans);
  letter-spacing: .055em;
  cursor: pointer;
  text-transform: uppercase;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.frontier-landmark-list button:hover,
.frontier-landmark-list button:focus-visible,
.frontier-landmark-list button[aria-pressed="true"] {
  border-color: #8ad6df;
  outline: none;
  color: #071013;
  background: #8ad6df;
  transform: translateY(-1px);
}

.frontier-panel-figure .frontier-logic-rail {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.frontier-panel-figure .frontier-logic-rail li {
  min-height: 48px;
  padding-inline: 5px;
}

.frontier-microplot {
  height: 86px;
  margin-top: 18px;
  padding: 12px 10px 0;
  display: flex;
  align-items: end;
  gap: 7px;
  border-bottom: 1px solid rgba(255, 253, 248, .18);
  background: linear-gradient(180deg, transparent, rgba(100, 198, 216, .04));
}

.frontier-microplot i {
  flex: 1;
  height: var(--v);
  min-height: 8px;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(#7fd0dc, #bd765b);
  transform-origin: bottom;
  animation: frontier-bars 3.8s ease-in-out infinite alternate;
}

.frontier-microplot i:nth-child(even) { animation-delay: -1.4s; }

@keyframes frontier-bars {
  from { transform: scaleY(.82); opacity: .62; }
  to { transform: scaleY(1); opacity: .95; }
}

.frontier-dossier-map {
  margin-top: 17px;
  display: grid;
  grid-template-columns: minmax(72px, .72fr) 28px minmax(92px, 1fr);
  align-items: center;
  gap: 9px;
}

.frontier-dossier-map span,
.frontier-dossier-map strong {
  min-height: 42px;
  padding: 9px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 253, 248, .15);
  border-radius: 10px;
  font-size: .62rem;
  text-align: center;
}

.frontier-dossier-map span { color: #e3c58d; background: rgba(187, 147, 82, .09); }
.frontier-dossier-map strong { color: #d7edf0; background: rgba(105, 202, 216, .08); }
.frontier-dossier-map i { height: 1px; background: linear-gradient(90deg, #cf8163, #82cedb); }

.frontier-panel-figure--worlds .frontier-world-nodes {
  margin-top: 20px;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.frontier-panel-figure--route ol {
  position: relative;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  list-style: none;
}

.frontier-panel-figure--route li {
  padding: 8px 10px 8px 18px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-left: 1px solid rgba(130, 206, 219, .5);
  color: rgba(255, 253, 248, .72);
  font-size: .68rem;
}

.frontier-panel-figure--route li::before {
  position: absolute;
  left: -3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  content: "";
  background: #cf8163;
  box-shadow: 0 0 0 4px rgba(207, 129, 99, .13);
}

.frontier-panel-figure--route b {
  color: #82cedb;
  font-size: .57rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.frontier-journey.is-enhanced,
.frontier-journey[data-frontier-enhanced="true"] {
  height: 650svh;
}

.frontier-chapter-nav {
  display: none;
}

@media (min-width: 821px) {
  .frontier-journey.is-enhanced .frontier-chapter-nav,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-chapter-nav {
    position: absolute;
    z-index: 8;
    top: 50%;
    left: 8px;
    display: grid;
    gap: 6px;
    transform: translateY(-50%);
  }

  .frontier-chapter-nav button {
    width: 34px;
    min-height: 34px;
    padding: 0;
    border: 1px solid rgba(255, 253, 248, .18);
    border-radius: 50%;
    color: rgba(255, 253, 248, .62);
    background: rgba(7, 14, 16, .58);
    font: 760 .62rem/1 var(--sans);
    letter-spacing: .04em;
    cursor: pointer;
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease;
  }

  .frontier-chapter-nav button:hover,
  .frontier-chapter-nav button:focus-visible,
  .frontier-chapter-nav button[aria-current="step"] {
    border-color: #8ad6df;
    outline: none;
    color: #071013;
    background: #8ad6df;
    transform: scale(1.08);
  }
}

.frontier-journey.is-enhanced .frontier-content,
.frontier-journey[data-frontier-enhanced="true"] .frontier-content {
  width: min(1560px, calc(100vw - 56px));
  padding-right: clamp(24px, 4vw, 72px);
  padding-left: clamp(24px, 4vw, 72px);
}

.frontier-journey.is-enhanced .frontier-heading,
.frontier-journey[data-frontier-enhanced="true"] .frontier-heading {
  width: min(720px, 54vw);
}

.frontier-journey.is-enhanced .frontier-heading h2,
.frontier-journey[data-frontier-enhanced="true"] .frontier-heading h2 {
  font-size: clamp(2.8rem, 4.8vw, 5.45rem);
}

.frontier-journey.is-enhanced .frontier-stages,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stages {
  width: 100%;
  height: 390px;
}

.frontier-journey.is-enhanced .frontier-stage article,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage article {
  min-height: 100%;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(340px, 430px) minmax(160px, 1fr) minmax(340px, 430px);
  align-items: end;
  gap: clamp(24px, 3vw, 54px);
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.frontier-journey.is-enhanced .frontier-panel-figure,
.frontier-journey[data-frontier-enhanced="true"] .frontier-panel-figure {
  width: min(100%, 330px);
}

.frontier-journey.is-enhanced .frontier-stage[data-panel-side="left"] .frontier-panel-copy,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage[data-panel-side="left"] .frontier-panel-copy {
  grid-column: 1;
}

.frontier-journey.is-enhanced .frontier-stage[data-panel-side="left"] .frontier-panel-figure,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage[data-panel-side="left"] .frontier-panel-figure {
  grid-column: 3;
  justify-self: end;
}

.frontier-journey.is-enhanced .frontier-stage[data-panel-side="right"] .frontier-panel-copy,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage[data-panel-side="right"] .frontier-panel-copy {
  grid-column: 3;
}

.frontier-journey.is-enhanced .frontier-stage[data-panel-side="right"] .frontier-panel-figure,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage[data-panel-side="right"] .frontier-panel-figure {
  grid-column: 1;
  grid-row: 1;
  justify-self: start;
}

.frontier-journey.is-enhanced .frontier-stage[data-frontier-stage="world"] article,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage[data-frontier-stage="world"] article {
  grid-template-rows: auto auto;
  align-content: end;
  gap: 12px clamp(24px, 3vw, 54px);
}

.frontier-journey.is-enhanced .frontier-stage[data-frontier-stage="world"] .frontier-panel-copy,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage[data-frontier-stage="world"] .frontier-panel-copy,
.frontier-journey.is-enhanced .frontier-stage[data-frontier-stage="world"] .frontier-panel-figure,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage[data-frontier-stage="world"] .frontier-panel-figure {
  grid-column: 3;
  justify-self: end;
}

.frontier-journey.is-enhanced .frontier-stage[data-frontier-stage="world"] .frontier-panel-copy,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage[data-frontier-stage="world"] .frontier-panel-copy { grid-row: 1; }

.frontier-journey.is-enhanced .frontier-stage[data-frontier-stage="world"] .frontier-panel-figure,
.frontier-journey[data-frontier-enhanced="true"] .frontier-stage[data-frontier-stage="world"] .frontier-panel-figure {
  grid-row: 2;
  width: min(100%, 430px);
}

@media (min-width: 1181px) {
  .frontier-journey.is-enhanced .frontier-progress,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-progress {
    display: none;
  }

  .frontier-caption {
    right: 50%;
    bottom: 20px;
    width: min(350px, 25vw);
    padding: 8px 12px;
    border: 1px solid rgba(255, 253, 248, .1);
    border-radius: 14px;
    background: rgba(5, 10, 12, .42);
    box-shadow: 0 12px 36px rgba(0, 0, 0, .16);
    text-align: center;
    transform: translateX(50%);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
  }
}

@media (max-width: 1180px) and (min-width: 821px) {
  .frontier-journey.is-enhanced .frontier-content,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-content {
    padding-left: 64px;
  }

  .frontier-journey.is-enhanced .frontier-stage article,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage article {
    grid-template-columns: minmax(320px, 520px) 1fr;
  }

  .frontier-journey.is-enhanced .frontier-stage[data-panel-side="right"] .frontier-panel-copy,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage[data-panel-side="right"] .frontier-panel-copy {
    grid-column: 2;
  }

  .frontier-journey.is-enhanced .frontier-panel-figure,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-panel-figure {
    display: none;
  }
}

@media (max-height: 800px) and (min-width: 1181px) {
  .frontier-journey.is-enhanced .frontier-content,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-content { padding-top: 92px; padding-bottom: 42px; gap: 14px; }
  .frontier-journey.is-enhanced .frontier-heading > p:last-child,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-heading > p:last-child { display: none; }
  .frontier-journey.is-enhanced .frontier-stages,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stages { height: 300px; }
  .frontier-panel-copy { padding: 18px 20px; }
  .frontier-panel-copy h3 { margin-top: 11px; font-size: clamp(1.55rem, 2vw, 2.1rem); }
  .frontier-panel-copy .frontier-stage-copy { margin-top: 9px; font-size: .82rem; line-height: 1.43; }
  .frontier-panel-figure { padding: 15px; }
  .frontier-panel-figure > svg { max-height: 82px; margin-top: 8px; }
  .frontier-landmark-list button { min-height: 32px; padding: 6px 8px; font-size: .7rem; }
  .frontier-panel-figure figcaption { margin-top: 8px; }
  .frontier-stage-actions { margin-top: 10px; }
}

@media (max-width: 820px) {
  .frontier-journey { scroll-margin-top: 82px; }
  .frontier-media::before { background: linear-gradient(180deg, transparent 32%, rgba(8, 12, 11, .72)); }
  .frontier-panel-copy,
  .frontier-panel-figure { border: 0; border-radius: 0; background: transparent; box-shadow: none; -webkit-backdrop-filter: none; backdrop-filter: none; }
  .frontier-panel-copy { padding: 0; }
  .frontier-panel-figure { margin-top: 20px; padding: 18px; border: 1px solid rgba(255, 253, 248, .13); border-radius: 18px; background: rgba(8, 15, 17, .58); }
  .frontier-stage article,
  .frontier-journey.is-enhanced .frontier-stage article,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage article { display: block; }
  .frontier-panel-copy h3 { font-size: clamp(1.9rem, 8vw, 2.8rem); }
  .frontier-panel-copy .frontier-stage-copy { font-size: .92rem; }
  .frontier-skip { margin-top: 18px; }
}

@media (max-width: 480px) {
  .frontier-panel-figure .frontier-logic-rail { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .frontier-panel-figure--worlds .frontier-world-nodes { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .frontier-dossier-map { grid-template-columns: 1fr 18px 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .frontier-microplot i { animation: none; }
  .frontier-landmark-list button { transition: none; }
}

/* Resilient renderer states: reduced-motion and narrow screens retain 3D. */
.frontier-fallback,
.frontier-canvas {
  transition: opacity 360ms ease;
}

.frontier-canvas {
  opacity: 0;
}

.frontier-journey[data-frontier-state="ready"] .frontier-canvas,
.frontier-journey[data-frontier-state="static"] .frontier-canvas {
  opacity: 1;
}

.frontier-journey[data-frontier-models="ready"][data-frontier-state="ready"] .frontier-fallback,
.frontier-journey[data-frontier-models="ready"][data-frontier-state="static"] .frontier-fallback {
  opacity: .16;
  filter: saturate(.62) contrast(.92);
}

.frontier-journey[data-frontier-active="world"][data-frontier-world="fallback"] .frontier-fallback {
  opacity: .5;
  filter: saturate(.78) contrast(.96);
}

.frontier-render-status {
  position: absolute;
  z-index: 6;
  top: clamp(194px, 20vh, 232px);
  right: clamp(28px, 4vw, 62px);
  margin: 0;
  padding: 8px 11px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(132, 208, 221, .28);
  border-radius: 999px;
  color: rgba(255, 253, 248, .72);
  background: rgba(4, 14, 18, .66);
  font: 650 .57rem/1.2 var(--sans);
  letter-spacing: .06em;
  text-transform: uppercase;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.frontier-render-status span {
  color: #86d5df;
  font-weight: 800;
}

.frontier-render-status b {
  font-weight: 650;
}

.frontier-load-meter {
  position: relative;
  width: 68px;
  height: 4px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 253, 248, .14);
}

.frontier-load-meter em {
  position: absolute;
  inset: 0 auto 0 0;
  width: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #d78b6d, #86d5df);
  transform: scaleX(var(--frontier-load-progress, 0));
  transform-origin: left center;
  transition: transform 320ms cubic-bezier(.2, .75, .2, 1);
}

@media (min-width: 821px) {
  .frontier-journey[data-frontier-enhanced="true"] .frontier-skip {
    top: 92px;
  }

  .frontier-journey[data-frontier-enhanced="true"] .frontier-render-status {
    top: 144px;
  }

  .frontier-journey[data-frontier-enhanced="true"][data-frontier-panel-side="right"] .frontier-render-status {
    top: 92px;
    right: auto;
    left: 84px;
  }

  .frontier-journey[data-frontier-enhanced="true"][data-frontier-active="world"] .frontier-skip {
    display: none;
  }
}

.frontier-journey[data-frontier-state="error"] .frontier-render-status,
.frontier-journey[data-frontier-state="fallback"] .frontier-render-status {
  border-color: rgba(207, 129, 99, .42);
}

.frontier-journey[data-frontier-active="world"] .frontier-viewport {
  cursor: grab;
  touch-action: pan-y;
}

.frontier-journey[data-frontier-active="world"] .frontier-media {
  cursor: grab;
  touch-action: none;
}

.frontier-journey[data-frontier-dragging="true"] .frontier-viewport {
  cursor: grabbing;
}

.frontier-journey[data-frontier-dragging="true"] .frontier-media {
  cursor: grabbing;
}

.frontier-journey[data-frontier-active="world"] a,
.frontier-journey[data-frontier-active="world"] button {
  cursor: pointer;
}

.frontier-globe-controls {
  margin-top: 10px;
  display: grid;
  grid-template-columns: 34px 34px minmax(108px, 1fr) 34px 34px;
  gap: 5px;
}

.frontier-globe-controls button {
  min-height: 32px;
  padding: 5px;
  border: 1px solid rgba(130, 206, 219, .3);
  border-radius: 999px;
  color: rgba(255, 253, 248, .8);
  background: rgba(7, 18, 22, .62);
  font: 750 .58rem/1 var(--sans);
  letter-spacing: .04em;
}

.frontier-globe-controls button:hover,
.frontier-globe-controls button:focus-visible {
  border-color: #86d5df;
  outline: none;
  color: #071013;
  background: #86d5df;
}

.frontier-globe-controls.frontier-globe-controls--floating {
  display: none;
}

@media (min-width: 821px) and (max-width: 1180px) {
  .frontier-journey[data-frontier-active="world"][data-frontier-state="ready"] .frontier-globe-controls--floating,
  .frontier-journey[data-frontier-active="world"][data-frontier-state="static"] .frontier-globe-controls--floating {
    position: absolute;
    z-index: 7;
    right: 24px;
    bottom: 24px;
    width: min(380px, calc(100% - 48px));
    margin: 0;
    padding: 9px;
    display: grid;
    border: 1px solid rgba(132, 208, 221, .26);
    border-radius: 999px;
    background: rgba(4, 14, 18, .76);
    box-shadow: 0 16px 42px rgba(0, 0, 0, .28);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
  }
}

.frontier-journey.is-enhanced,
.frontier-journey[data-frontier-enhanced="true"] {
  height: 650vh;
  height: 650svh;
}

.frontier-journey.is-enhanced .frontier-viewport,
.frontier-journey[data-frontier-enhanced="true"] .frontier-viewport {
  height: 100vh;
  height: 100svh;
}

@media (max-width: 820px) {
  .frontier-journey.is-enhanced,
  .frontier-journey[data-frontier-enhanced="true"] {
    height: auto;
    padding: 54px 0;
  }

  .frontier-journey.is-enhanced .frontier-viewport,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-viewport {
    position: relative;
    top: auto;
    width: min(100% - 28px, 760px);
    height: auto;
    min-height: 0;
    overflow: visible;
  }

  .frontier-journey.is-enhanced .frontier-content,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-content {
    width: auto;
    height: auto;
    min-height: 0;
    padding: 36px 22px 46px;
    display: block;
  }

  .frontier-journey.is-enhanced .frontier-heading,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-heading {
    width: 100%;
  }

  .frontier-journey.is-enhanced .frontier-stages,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stages {
    position: static;
    width: 100%;
    height: auto;
    margin-top: 48px;
    display: grid;
    grid-template-columns: 1fr;
  }

  .frontier-journey.is-enhanced .frontier-stage,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage {
    position: static;
    inset: auto;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }

  .frontier-journey.is-enhanced .frontier-stage article,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage article {
    min-height: 0;
    padding: 28px 0 30px;
    display: block;
  }

  .frontier-journey[data-frontier-state="ready"] .frontier-media,
  .frontier-journey[data-frontier-state="static"] .frontier-media {
    position: sticky;
    z-index: 4;
    inset: auto;
    top: 72px;
    width: 100%;
    height: min(68vw, 360px);
    min-height: 238px;
    aspect-ratio: auto;
    border-top: 1px solid rgba(132, 208, 221, .18);
    border-bottom: 1px solid rgba(132, 208, 221, .18);
    box-shadow: 0 24px 56px rgba(0, 0, 0, .34);
  }

  .frontier-journey[data-frontier-state="ready"] .frontier-viewport,
  .frontier-journey[data-frontier-state="static"] .frontier-viewport {
    overflow: visible;
  }

  .frontier-journey[data-frontier-state="ready"] .frontier-canvas,
  .frontier-journey[data-frontier-state="static"] .frontier-canvas {
    display: block;
  }

  .frontier-journey[data-frontier-state="ready"] .frontier-media::before,
  .frontier-journey[data-frontier-state="static"] .frontier-media::before {
    background: linear-gradient(180deg, rgba(4, 10, 13, .08), transparent 58%, rgba(4, 10, 13, .52));
  }

  .frontier-journey[data-frontier-state="ready"] .frontier-media::after,
  .frontier-journey[data-frontier-state="static"] .frontier-media::after {
    display: block;
    opacity: .18;
  }

  .frontier-journey[data-frontier-state="ready"] .frontier-content,
  .frontier-journey[data-frontier-state="static"] .frontier-content {
    position: relative;
    z-index: 3;
  }

  .frontier-journey[data-frontier-state="ready"] .frontier-caption,
  .frontier-journey[data-frontier-state="static"] .frontier-caption {
    display: none;
  }

  .frontier-render-status {
    top: 12px;
    right: 12px;
    max-width: calc(100% - 24px);
    font-size: .52rem;
  }

  .frontier-globe-controls {
    grid-template-columns: 32px 32px minmax(104px, 1fr) 32px 32px;
  }
}

@media (prefers-reduced-motion: reduce) and (min-width: 821px) {
  .frontier-journey.is-enhanced,
  .frontier-journey[data-frontier-enhanced="true"] {
    height: auto;
    padding: clamp(72px, 8vw, 116px) 0;
  }

  .frontier-journey.is-enhanced .frontier-viewport,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-viewport {
    position: relative;
    top: auto;
    height: auto;
    min-height: 0;
    overflow: visible;
  }

  .frontier-journey.is-enhanced .frontier-content,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-content {
    width: auto;
    height: auto;
    min-height: 0;
    padding: clamp(70px, 7vw, 110px) clamp(28px, 7vw, 104px) clamp(96px, 8vw, 122px);
  }

  .frontier-journey.is-enhanced .frontier-stages,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stages {
    position: static;
    width: 100%;
    height: auto;
    display: grid;
    grid-template-columns: 1fr;
  }

  .frontier-journey.is-enhanced .frontier-stage,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage {
    position: static;
    inset: auto;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }

  .frontier-journey.is-enhanced .frontier-stage article,
  .frontier-journey[data-frontier-enhanced="true"] .frontier-stage article {
    min-height: 210px;
    padding: 24px;
    display: block;
  }

  .frontier-journey[data-frontier-state="static"] .frontier-media {
    position: sticky;
    z-index: 4;
    inset: auto;
    top: 76px;
    width: 100%;
    height: min(52vw, 520px);
    min-height: 360px;
    border-top: 1px solid rgba(132, 208, 221, .18);
    border-bottom: 1px solid rgba(132, 208, 221, .18);
    box-shadow: 0 24px 56px rgba(0, 0, 0, .3);
  }

  .frontier-journey[data-frontier-state="static"] .frontier-content {
    position: relative;
    z-index: 3;
  }

  .frontier-journey[data-frontier-state="static"] .frontier-canvas {
    display: block;
  }

  .frontier-journey[data-frontier-state="static"] .frontier-fallback {
    opacity: .2;
  }
}

@media print {
  .frontier-panel-copy,
  .frontier-panel-figure { color: var(--ink); border-color: var(--line); background: #fff; box-shadow: none; }
  .frontier-panel-copy .frontier-stage-copy,
  .frontier-panel-figure figcaption { color: var(--ink-soft); }
}