.fr-page {
  --fr-void: #07090f;
  --fr-bone: #efe8db;
  --fr-muted: #b9b1a4;
  --fr-faint: #948d82;
  --fr-line: #2b3341;
  --fr-actual: #d7b65a;
  --fr-possible: #78a7e8;
  --fr-conjecture: #a58be2;
  --fr-evidence: #76ceb0;
  background: var(--fr-void);
}

.fr-shell {
  width: min(1180px, calc(100vw - 40px));
  margin-inline: auto;
}

.fr-kicker {
  margin: 0 0 0.9rem;
  color: var(--fr-actual);
  font: 650 0.7rem/1.4 var(--g2-mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.fr-hero {
  min-height: min(820px, calc(100vh - var(--g2-nav-h)));
  display: grid;
  grid-template-columns: minmax(180px, 0.55fr) minmax(0, 1.45fr);
  align-items: center;
  gap: clamp(2rem, 7vw, 7rem);
  padding-block: clamp(4rem, 11vw, 9rem);
}

.fr-hero__index {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--fr-line);
  color: var(--fr-actual);
}

.fr-hero__index span {
  display: block;
  font: 200 clamp(8rem, 22vw, 18rem)/0.72 var(--g2-display);
  letter-spacing: -0.08em;
}

.fr-hero__index small {
  margin-top: 2rem;
  color: var(--fr-faint);
  font: 600 0.72rem/1 var(--g2-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.fr-hero h1,
.fr-protocol h2,
.fr-sockets h2,
.fr-roles h2,
.fr-machine h2,
.fr-economy h2 {
  margin: 0;
  font-family: var(--g2-display);
  font-weight: 260;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.fr-hero h1 {
  max-width: 12ch;
  font-size: clamp(4rem, 9vw, 8.2rem);
  line-height: 0.86;
}

.fr-hero h1 em {
  color: var(--fr-conjecture);
  font-style: normal;
}

.fr-lede {
  max-width: 64ch;
  margin: 2.2rem 0 0;
  color: var(--fr-bone);
  font-size: clamp(1.05rem, 1.7vw, 1.35rem);
  line-height: 1.55;
}

.fr-boundary {
  max-width: 72ch;
  margin: 1.7rem 0 0;
  padding-left: 1rem;
  border-left: 2px dashed var(--fr-conjecture);
  color: var(--fr-muted);
  font-size: 0.86rem;
}

.fr-boundary strong {
  color: var(--fr-conjecture);
  font-family: var(--g2-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

.fr-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem 1.4rem;
  margin-top: 2rem;
  font: 600 0.75rem/1 var(--g2-mono);
}

.fr-button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  padding: 0 1rem;
  border: 1px solid var(--fr-actual);
  color: var(--fr-actual) !important;
  text-decoration: none !important;
}

.fr-button:hover {
  background: var(--fr-actual);
  color: var(--fr-void) !important;
}

.fr-protocol,
.fr-sockets,
.fr-roles,
.fr-machine,
.fr-economy {
  padding-block: clamp(4.5rem, 10vw, 9rem);
  border-top: 1px solid var(--fr-line);
}

.fr-protocol > header,
.fr-roles > header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 7vw, 7rem);
  align-items: end;
}

.fr-protocol h2,
.fr-sockets h2,
.fr-roles h2,
.fr-machine h2,
.fr-economy h2 {
  font-size: clamp(2.7rem, 6.5vw, 6rem);
  line-height: 0.92;
}

.fr-protocol > header > p:last-child,
.fr-sockets__head > p,
.fr-machine > div > p:last-child,
.fr-economy > p:not(.fr-kicker) {
  max-width: 62ch;
  margin: 0;
  color: var(--fr-muted);
}

.fr-lifecycle {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  margin: clamp(3rem, 7vw, 6rem) 0 0;
  padding: 0;
  counter-reset: none;
}

.fr-lifecycle li {
  min-height: 190px;
  padding: 1.2rem 1rem 1.2rem 0;
  border-top: 2px solid var(--fr-actual);
  border-right: 1px solid var(--fr-line);
}

.fr-lifecycle li:not(:first-child) {
  padding-left: 1rem;
}

.fr-lifecycle li:nth-child(2),
.fr-lifecycle li:nth-child(3) {
  border-top-color: var(--fr-possible);
}

.fr-lifecycle li:nth-child(4) {
  border-top-color: var(--fr-evidence);
}

.fr-lifecycle li:nth-child(5) {
  border-top-style: dashed;
  border-top-color: var(--fr-conjecture);
}

.fr-lifecycle b,
.fr-lifecycle span,
.fr-lifecycle small {
  display: block;
}

.fr-lifecycle b {
  color: var(--fr-faint);
  font: 500 0.72rem/1 var(--g2-mono);
}

.fr-lifecycle span {
  margin-top: 3.8rem;
  font: 550 1rem/1.2 var(--g2-mono);
}

.fr-lifecycle small {
  margin-top: 0.5rem;
  color: var(--fr-muted);
  font-size: 0.8rem;
}

.fr-launch {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin-top: 3rem;
  border-block: 1px solid var(--fr-line);
}

.fr-launch p {
  min-width: 0;
  margin: 0;
  padding: 1.4rem 1rem;
  border-right: 1px solid var(--fr-line);
}

.fr-launch b,
.fr-launch span {
  display: block;
}

.fr-launch b {
  color: var(--fr-bone);
  font: 250 clamp(2.4rem, 5vw, 4.5rem)/1 var(--g2-display);
}

.fr-launch span {
  margin-top: 0.35rem;
  color: var(--fr-faint);
  font: 550 0.68rem/1.4 var(--g2-mono);
  text-transform: uppercase;
}

.fr-count-note {
  max-width: 80ch;
  margin: 1rem 0 0;
  color: var(--fr-faint);
  font-size: 0.78rem;
}

.fr-sockets__head {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 7vw, 7rem);
  align-items: end;
  margin-bottom: clamp(2.5rem, 6vw, 5rem);
}

.fr-rack {
  border-top: 1px solid var(--fr-line);
}

.fr-socket {
  border-bottom: 1px solid var(--fr-line);
}

.fr-socket > summary {
  min-height: 112px;
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) minmax(180px, 0.55fr) auto;
  align-items: center;
  gap: 1.2rem;
  padding: 1rem 0;
  cursor: pointer;
  list-style: none;
}

.fr-socket > summary::-webkit-details-marker {
  display: none;
}

.fr-socket > summary::marker {
  content: "";
}

.fr-socket > summary:hover .fr-socket__open,
.fr-socket[open] > summary .fr-socket__open {
  color: var(--fr-actual);
}

.fr-socket__number {
  color: var(--fr-faint);
  font: 400 0.72rem/1 var(--g2-mono);
}

.fr-socket__identity b,
.fr-socket__identity em {
  display: block;
}

.fr-socket__identity b,
.fr-socket__state,
.fr-socket__open {
  font: 550 0.7rem/1.3 var(--g2-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.fr-socket__identity b {
  color: var(--fr-possible);
}

.fr-socket__identity em {
  margin-top: 0.35rem;
  color: var(--fr-bone);
  font: 350 clamp(1.2rem, 2.2vw, 1.7rem)/1.2 var(--g2-display);
  letter-spacing: -0.02em;
}

.fr-socket__state {
  color: var(--fr-conjecture);
}

.fr-socket__open {
  color: var(--fr-faint);
}

.fr-socket[open] > summary {
  border-bottom: 1px solid var(--fr-line);
}

.fr-envelope {
  padding: clamp(2rem, 5vw, 4rem) clamp(0rem, 3vw, 2.5rem) clamp(3rem, 7vw, 6rem);
}

.fr-envelope__question {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: end;
}

.fr-envelope__question > * {
  min-width: 0;
}

.fr-envelope__question .fr-kicker {
  grid-column: 1 / -1;
}

.fr-envelope__question h3 {
  max-width: 24ch;
  margin: 0;
  overflow-wrap: anywhere;
  font: 300 clamp(2.2rem, 5.4vw, 5.2rem)/0.98 var(--g2-display);
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.fr-endpoint {
  max-width: 34ch;
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--fr-muted);
  font: 500 0.7rem/1.5 var(--g2-mono);
}

.fr-endpoint span {
  color: var(--fr-evidence);
}

.fr-state-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: 3rem 0 0;
  padding: 1px;
  background: var(--fr-line);
}

.fr-state-pair div {
  min-width: 0;
  padding: 1rem;
  background: var(--fr-void);
}

.fr-state-pair dt,
.fr-machine dt,
.fr-machine-record dt {
  color: var(--fr-faint);
  font: 600 0.65rem/1.35 var(--g2-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.fr-state-pair dd,
.fr-machine dd,
.fr-machine-record dd {
  margin: 0.45rem 0 0;
  overflow-wrap: anywhere;
  color: var(--fr-bone);
  font: 500 0.74rem/1.5 var(--g2-mono);
}

.fr-triad,
.fr-decision-line {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 2rem;
}

.fr-triad article,
.fr-decision-line article {
  min-width: 0;
  padding: 1.2rem;
  border: 1px solid var(--fr-line);
  border-right: 0;
}

.fr-triad article:last-child,
.fr-decision-line article:last-child {
  border-right: 1px solid var(--fr-line);
}

.fr-triad article p:last-child,
.fr-decision-line article p:last-child {
  margin: 0;
  color: var(--fr-muted);
  font-size: 0.84rem;
}

.fr-triad__decider {
  border-top-style: dashed !important;
  border-top-color: var(--fr-conjecture) !important;
}

.fr-empty-receipt {
  border-top: 2px solid var(--fr-evidence) !important;
}

.fr-machine-record {
  margin-top: 2rem;
  border-block: 1px solid var(--fr-line);
}

.fr-machine-record > summary {
  min-height: 52px;
  display: flex;
  align-items: center;
  cursor: pointer;
  color: var(--fr-possible);
  font: 600 0.72rem/1 var(--g2-mono);
}

.fr-machine-record dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 1rem 0 1.5rem;
}

.fr-machine-record dl div {
  min-width: 0;
}

.fr-role-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(3rem, 7vw, 6rem);
  border-block: 1px solid var(--fr-line);
}

.fr-role-grid article {
  min-width: 0;
  min-height: 280px;
  padding: 1.3rem 1.2rem;
  border-right: 1px solid var(--fr-line);
}

.fr-role-grid span {
  color: var(--fr-possible);
  font: 600 0.66rem/1.4 var(--g2-mono);
  letter-spacing: 0.06em;
}

.fr-role-grid h3 {
  margin: 6rem 0 0.8rem;
  font: 350 1.55rem/1.1 var(--g2-display);
}

.fr-role-grid p {
  margin: 0;
  color: var(--fr-muted);
  font-size: 0.85rem;
}

.fr-machine {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 7vw, 7rem);
}

.fr-machine dl {
  margin: 0;
  border-top: 1px solid var(--fr-line);
}

.fr-machine dl div {
  padding: 1rem 0;
  border-bottom: 1px solid var(--fr-line);
}

.fr-machine dd {
  color: var(--fr-evidence);
}

.fr-economy {
  padding-bottom: clamp(7rem, 14vw, 12rem);
}

.fr-economy h2 {
  max-width: 15ch;
}

.fr-economy > p:not(.fr-kicker) {
  margin-top: 2rem;
}

@media (max-width: 860px) {
  .fr-hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .fr-hero__index {
    min-height: 180px;
    border-right: 0;
    border-bottom: 1px solid var(--fr-line);
  }

  .fr-hero__index span {
    font-size: clamp(8rem, 38vw, 14rem);
  }

  .fr-protocol > header,
  .fr-roles > header,
  .fr-sockets__head,
  .fr-machine {
    grid-template-columns: 1fr;
  }

  .fr-lifecycle,
  .fr-launch {
    grid-template-columns: repeat(2, 1fr);
  }

  .fr-lifecycle li,
  .fr-launch p {
    border-bottom: 1px solid var(--fr-line);
  }

  .fr-role-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .fr-socket > summary {
    grid-template-columns: 44px minmax(0, 1fr) auto;
  }

  .fr-socket__state {
    display: none;
  }

  .fr-envelope__question,
  .fr-state-pair {
    grid-template-columns: minmax(0, 1fr);
  }

  .fr-endpoint {
    margin-top: 1rem;
  }
}

@media (max-width: 620px) {
  .fr-shell {
    width: min(100% - 28px, 1180px);
  }

  .fr-hero {
    padding-top: 2.8rem;
  }

  .fr-hero h1 {
    font-size: clamp(3.5rem, 19vw, 5.4rem);
  }

  .fr-lifecycle,
  .fr-launch,
  .fr-role-grid,
  .fr-triad,
  .fr-decision-line,
  .fr-machine-record dl {
    grid-template-columns: 1fr;
  }

  .fr-lifecycle li,
  .fr-launch p,
  .fr-role-grid article,
  .fr-triad article,
  .fr-decision-line article {
    border-right: 0;
    border-bottom: 1px solid var(--fr-line);
  }

  .fr-triad article:last-child,
  .fr-decision-line article:last-child {
    border-right: 0;
  }

  .fr-lifecycle li {
    min-height: 120px;
  }

  .fr-lifecycle span,
  .fr-role-grid h3 {
    margin-top: 2rem;
  }

  .fr-role-grid article {
    min-height: 200px;
  }

  .fr-socket > summary {
    min-height: 96px;
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 0.7rem;
  }

  .fr-socket__open {
    display: none;
  }

  .fr-envelope__question h3 {
    font-size: clamp(2.1rem, 13vw, 3.8rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .fr-page *,
  .fr-page *::before,
  .fr-page *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}

@media (forced-colors: active) {
  .fr-button,
  .fr-socket,
  .fr-triad article,
  .fr-decision-line article {
    border-color: CanvasText;
  }
}