.frontier-house {
  position: relative;
  overflow: clip;
  border-top: 1px solid var(--hairline-dark);
  padding: clamp(48px, 6vw, 72px) 0;
}

.frontier-house-shell {
  position: relative;
  width: var(--page);
  margin: 0 auto;
}

.frontier-house-intro {
  display: grid;
  grid-template-columns: minmax(130px, 0.85fr) minmax(0, 3.25fr) minmax(220px, 1.15fr);
  gap: clamp(28px, 5vw, 92px);
  align-items: start;
  border-top: 3px solid currentColor;
  padding-top: 13px;
}

.frontier-house-intro > .section-index {
  margin: 0;
}

.frontier-house-heading .eyebrow,
.frontier-house-rule .eyebrow {
  color: var(--lichen-bright);
}

.frontier-house-heading h2 {
  max-width: 24ch;
  margin: 24px 0 0;
  font: 600 clamp(1.75rem, 3vw, 2.5rem)/1.12 var(--sans);
  letter-spacing: -0.03em;
}

.frontier-house-dek {
  max-width: 730px;
  margin: 24px 0 0;
  font: 400 clamp(1.12rem, 1.55vw, 1.52rem)/1.35 var(--display);
}

.frontier-house-rule {
  margin-top: 24px;
  border-left: 1px solid var(--hairline-dark);
  padding-left: clamp(18px, 2.5vw, 38px);
}

.frontier-house-rule p:last-child {
  margin: 0;
  color: var(--fog);
  font-size: 0.82rem;
}

.frontier-house-rule strong {
  display: block;
  margin-bottom: 12px;
  color: var(--chalk);
  font: 600 1.25rem/1.2 var(--sans);
  letter-spacing: -0.02em;
}

.frontier-status-key {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 40px 0 0;
  padding: 0;
  border-block: 1px solid var(--hairline-dark);
  list-style: none;
}

.frontier-status-key li {
  display: grid;
  grid-template-columns: minmax(110px, 0.72fr) minmax(0, 1.28fr);
  gap: 18px;
  margin: 0;
  padding: 20px clamp(18px, 2.6vw, 40px) 22px 0;
}

.frontier-status-key li + li {
  border-left: 1px solid var(--hairline-dark);
  padding-left: clamp(18px, 2.6vw, 40px);
}

.frontier-status-key p {
  margin: 0;
  color: var(--ash);
  font-size: 0.72rem;
}

.frontier-status {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 24px;
  font: 800 0.57rem/1.2 var(--mono);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.frontier-status::before {
  width: 8px;
  height: 8px;
  margin-right: 9px;
  border: 1px solid currentColor;
  content: "";
}

.frontier-status--current::before {
  background: currentColor;
}

.frontier-status--emerging::before {
  border-color: var(--lichen-bright);
  background: linear-gradient(90deg, var(--lichen-bright) 50%, transparent 50%);
}

.frontier-status--forecast {
  color: var(--lichen-bright);
}

.frontier-status--forecast::before {
  transform: rotate(45deg);
}

.frontier-feature {
  margin: clamp(48px, 6vw, 72px) 0 0;
}

.frontier-feature-media {
  position: relative;
  border-block: 1px solid var(--hairline-dark);
  padding-block: 12px;
}

.frontier-feature-media::before,
.frontier-feature-media::after {
  position: absolute;
  z-index: 1;
  width: 26px;
  height: 26px;
  border-color: var(--lichen);
  border-style: solid;
  content: "";
  pointer-events: none;
}

.frontier-feature-media::before {
  top: 0;
  left: 0;
  border-width: 1px 0 0 1px;
}

.frontier-feature-media::after {
  right: 0;
  bottom: 0;
  border-width: 0 1px 1px 0;
}

.frontier-feature-media img,
.frontier-spatial-frame img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: var(--graphite);
  object-fit: cover;
}

.frontier-feature figcaption {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--hairline-dark);
  padding: 10px 0;
  color: var(--ash);
  font: 700 0.56rem/1.35 var(--mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.frontier-feature figcaption span:last-child {
  text-align: right;
}

.frontier-feature-copy {
  display: grid;
  grid-template-columns: minmax(130px, 0.8fr) minmax(300px, 2.25fr) minmax(260px, 1.35fr);
  gap: clamp(28px, 5vw, 88px);
  align-items: start;
  margin-top: 28px;
}

.frontier-feature-index {
  margin: 0;
  color: var(--lichen-bright);
  font: 800 0.61rem/1.4 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.frontier-feature-copy h3 {
  max-width: 26ch;
  margin: 0;
  font: 600 clamp(1.5rem, 2.1vw, 1.75rem)/1.15 var(--sans);
  letter-spacing: -0.02em;
}

.frontier-feature-copy > div > p {
  margin: 0;
  color: var(--fog);
  font-size: 0.86rem;
}

.frontier-feature-copy > div > p + p {
  margin-top: 24px;
}

.frontier-feature-copy .frontier-feature-boundary {
  border-top: 1px solid var(--hairline-dark);
  padding-top: 18px;
  color: var(--ash);
  font-size: 0.74rem;
}

.frontier-feature-boundary strong {
  color: var(--chalk);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.frontier-spatial-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  border-block: 1px solid var(--hairline-dark);
  background: var(--hairline-dark);
}

.frontier-spatial-frame {
  min-width: 0;
  background: var(--black);
}

.frontier-spatial-frame > p {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin: 0;
  padding: 12px 14px;
  color: var(--ash);
  font: 700 0.57rem/1.3 var(--mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.frontier-spatial-frame > p span {
  color: var(--lichen-bright);
}

.frontier-evidence {
  margin-top: clamp(48px, 6vw, 72px);
}

.frontier-evidence-intro {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) minmax(0, 4fr);
  gap: clamp(28px, 6vw, 112px);
  border-top: 3px solid currentColor;
  padding-top: 13px;
}

.frontier-evidence-intro > .section-index {
  margin: 0;
}

.frontier-evidence-intro h3 {
  max-width: 26ch;
  margin: 0;
  font: 600 clamp(1.5rem, 2.1vw, 1.75rem)/1.15 var(--sans);
  letter-spacing: -0.02em;
}

.frontier-evidence-intro h3 + p {
  max-width: 660px;
  margin: 24px 0 0;
  color: var(--fog);
  font: 400 clamp(1rem, 1.3vw, 1.24rem)/1.4 var(--display);
}

.frontier-register {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: clamp(34px, 6vw, 112px);
  margin: 40px 0 0;
  padding: 0;
  border-top: 1px solid var(--hairline-dark);
  list-style: none;
}

.frontier-register > li {
  min-width: 0;
  border-bottom: 1px solid var(--hairline-dark);
  padding: clamp(30px, 4vw, 58px) 0 clamp(38px, 5vw, 72px);
}

.frontier-register > li:not(.frontier-register-wide):nth-child(odd) {
  border-right: 1px solid var(--hairline-dark);
  padding-right: clamp(34px, 6vw, 112px);
}

.frontier-register-wide {
  grid-column: 1 / -1;
}

.frontier-register-wide article {
  display: grid;
  grid-template-columns: minmax(190px, 0.9fr) minmax(280px, 1.25fr) minmax(300px, 1.45fr);
  gap: clamp(26px, 5vw, 84px);
  align-items: start;
}

.frontier-register-wide .frontier-register-meta {
  grid-column: 1;
}

.frontier-register-wide h4 {
  grid-column: 2;
  grid-row: 1 / span 2;
}

.frontier-register-wide > article > p:not(.frontier-register-sources),
.frontier-register-wide .frontier-register-boundary,
.frontier-register-wide .frontier-register-sources {
  grid-column: 3;
}

.frontier-register-meta {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
  color: var(--ash);
  font: 700 0.58rem/1.35 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.frontier-register h4 {
  max-width: 26ch;
  margin: 0 0 24px;
  font: 600 1.35rem/1.2 var(--sans);
  letter-spacing: -0.02em;
}

.frontier-register article > p:not(.frontier-register-sources) {
  max-width: 62ch;
  margin: 0;
  color: var(--fog);
  font-size: 0.84rem;
}

.frontier-register-boundary {
  display: grid;
  grid-template-columns: minmax(82px, 0.35fr) minmax(0, 1.65fr);
  gap: 18px;
  margin: 24px 0 0;
  border-left: 2px solid var(--lichen);
  padding: 0 0 0 16px;
}

.frontier-register-boundary dt {
  color: var(--chalk);
  font: 800 0.57rem/1.45 var(--mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.frontier-register-boundary dd {
  margin: 0;
  color: var(--ash);
  font-size: 0.72rem;
}

.frontier-register-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 0 22px;
  margin: 24px 0 0;
  border-top: 1px solid var(--hairline-dark);
}

.frontier-register-sources a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--chalk);
  font: 700 0.57rem/1.3 var(--mono);
  letter-spacing: 0.045em;
}

.frontier-register-sources a::after {
  margin-left: 7px;
  color: var(--lichen-bright);
  content: "↗";
  text-decoration: none;
}

.frontier-house-disclosure {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(220px, 1fr);
  gap: clamp(30px, 7vw, 120px);
  align-items: end;
  margin-top: clamp(48px, 6vw, 72px);
  border-block: 3px solid currentColor;
  padding: 18px 0;
}

.frontier-house-disclosure p {
  max-width: 86ch;
  margin: 0;
  font-size: 0.8rem;
}

.frontier-house-disclosure p:last-of-type {
  color: var(--ash);
  font: 700 0.56rem/1.55 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

@media (max-width: 1080px) {
  .frontier-house-intro {
    grid-template-columns: minmax(120px, 0.8fr) minmax(0, 3.2fr);
  }

  .frontier-house-rule {
    grid-column: 2;
    margin-top: 0;
  }

  .frontier-status-key li {
    display: block;
  }

  .frontier-status-key p {
    margin-top: 12px;
  }

  .frontier-feature-copy {
    grid-template-columns: minmax(110px, 0.65fr) minmax(280px, 1.8fr);
  }

  .frontier-feature-copy > div {
    grid-column: 2;
  }

  .frontier-register-wide article {
    grid-template-columns: minmax(160px, 0.65fr) minmax(0, 2.35fr);
  }

  .frontier-register-wide h4,
  .frontier-register-wide > article > p:not(.frontier-register-sources),
  .frontier-register-wide .frontier-register-boundary,
  .frontier-register-wide .frontier-register-sources {
    grid-column: 2;
  }

  .frontier-register-wide h4 {
    grid-row: auto;
  }
}

@media (max-width: 760px) {
  .frontier-house-intro,
  .frontier-evidence-intro,
  .frontier-feature-copy,
  .frontier-register-wide article,
  .frontier-house-disclosure {
    display: block;
  }

  .frontier-house-heading .eyebrow {
    margin-top: 24px;
  }

  .frontier-house-dek,
  .frontier-evidence-intro h3 + p {
    margin-left: 0;
  }

  .frontier-house-rule {
    margin-top: 32px;
  }

  .frontier-status-key,
  .frontier-spatial-compare,
  .frontier-register {
    grid-template-columns: 1fr;
  }

  .frontier-status-key li,
  .frontier-status-key li + li {
    border: 0;
    border-bottom: 1px solid var(--hairline-dark);
    padding: 18px 0;
  }

  .frontier-status-key li:last-child {
    border-bottom: 0;
  }

  .frontier-spatial-compare {
    gap: 32px;
    background: none;
  }

  .frontier-feature figcaption {
    display: block;
  }

  .frontier-feature figcaption span {
    display: block;
    text-align: left !important;
  }

  .frontier-feature figcaption span + span {
    margin-top: 4px;
  }

  .frontier-feature-index {
    margin-bottom: 28px;
  }

  .frontier-feature-copy > div {
    margin-top: 28px;
  }

  .frontier-evidence-intro .section-index {
    margin-bottom: 24px;
  }

  .frontier-register > li,
  .frontier-register > li:not(.frontier-register-wide):nth-child(odd) {
    grid-column: auto;
    border-right: 0;
    padding-right: 0;
  }

  .frontier-register-wide .frontier-register-meta,
  .frontier-register-wide h4,
  .frontier-register-wide > article > p:not(.frontier-register-sources),
  .frontier-register-wide .frontier-register-boundary,
  .frontier-register-wide .frontier-register-sources {
    grid-column: auto;
  }

  .frontier-house-disclosure p + p {
    margin-top: 20px;
  }
}

@media (max-width: 480px) {
  .frontier-house {
    padding-block: 48px;
  }

  .frontier-status-key {
    margin-top: 32px;
  }

  .frontier-feature,
  .frontier-evidence {
    margin-top: 48px;
  }

  .frontier-register-meta {
    display: block;
    margin-bottom: 24px;
  }

  .frontier-register-meta .frontier-status {
    margin-top: 13px;
  }

  .frontier-register-boundary {
    display: block;
  }

  .frontier-register-boundary dd {
    margin-top: 8px;
  }
}

@media (forced-colors: active) {
  .frontier-house {
    border-color: CanvasText;
    background: Canvas;
    color: CanvasText;
  }

  .frontier-status::before,
  .frontier-feature-media::before,
  .frontier-feature-media::after,
  .frontier-register-boundary {
    border-color: CanvasText;
  }

  .frontier-status--emerging::before {
    background: CanvasText;
  }

  .frontier-house :is(.eyebrow, .frontier-status, .frontier-feature-index, .frontier-feature figcaption, .frontier-register-meta, .frontier-register article > p, .frontier-register-boundary dd, .frontier-house-disclosure p:last-child) {
    color: CanvasText;
  }
}

@media print {
  .frontier-house {
    background: #fff;
    color: #000;
  }

  .frontier-feature,
  .frontier-register > li {
    break-inside: avoid;
  }
}