.signal-variant {
  overflow-x: hidden;
  background:
    radial-gradient(circle at 75% 30%, rgba(197, 154, 66, 0.1), transparent 30rem),
    var(--night);
}

.signal-hero {
  min-height: calc(100vh - 79px);
  padding: clamp(48px, 7vw, 94px) 0 clamp(64px, 8vw, 110px);
  display: grid;
  align-items: center;
}

.signal-hero__grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) minmax(610px, 1.22fr);
  gap: clamp(34px, 4vw, 64px);
  align-items: center;
}

.signal-review-state,
.signal-surface__label,
.signal-center__eyebrow,
.signal-center__stamp,
.signal-center__focus > span,
.signal-support__label,
.signal-evidence__label,
.signal-ledger__status,
.signal-ledger__meta {
  font-family: var(--sans);
  font-weight: 700;
  text-transform: uppercase;
}

.signal-review-state {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  color: var(--cream-dim);
  font-size: 0.66rem;
  letter-spacing: 0.15em;
}

.signal-review-state::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(197, 154, 66, 0.12);
}

.signal-hero__copy h1 {
  max-width: 10ch;
  margin: 16px 0 28px;
  font-size: clamp(3.25rem, 6.4vw, 6rem);
}

.signal-hero__copy h1 em {
  color: var(--gold);
  font-weight: 500;
}

.signal-hero__deck {
  max-width: 30em;
  color: var(--cream-dim);
  font-size: clamp(1.15rem, 1.6vw, 1.42rem);
  line-height: 1.52;
}

.signal-map {
  position: relative;
  width: min(100%, 720px);
  min-height: 700px;
  margin: 0 auto;
  isolation: isolate;
}

.signal-map::before {
  content: "";
  position: absolute;
  inset: 7% 4% 8%;
  z-index: -2;
  border: 1px solid rgba(209, 165, 74, 0.18);
  border-radius: 48% 52% 44% 56% / 54% 42% 58% 46%;
  background:
    linear-gradient(rgba(209, 165, 74, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(209, 165, 74, 0.04) 1px, transparent 1px);
  background-size: 42px 42px;
}

.signal-map__routes {
  position: absolute;
  inset: 0;
  z-index: 3;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.signal-map__routes path {
  fill: none;
  stroke: rgba(230, 189, 98, 0.8);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: none;
  filter: drop-shadow(0 2px 4px rgba(209, 165, 74, 0.2));
  transition: stroke 280ms ease-out, stroke-width 280ms ease-out;
}

.signal-map__routes path.is-active {
  stroke: #e6bd62;
  stroke-width: 3.5;
  stroke-dasharray: 10 7;
  filter: drop-shadow(0 3px 7px rgba(209, 165, 74, 0.5));
  animation: signal-route 2.8s linear infinite;
}

.signal-map__routes .signal-map__hub {
  fill: var(--gold);
  filter: drop-shadow(0 0 7px rgba(209, 165, 74, 0.42));
}

.signal-map__node {
  fill: var(--night);
  stroke: #e6bd62;
  stroke-width: 3;
  transform-box: fill-box;
  transform-origin: center;
  transition: fill 220ms ease-out, stroke-width 220ms ease-out;
}

.signal-map__node.is-active {
  fill: #fff4ce;
  stroke-width: 4;
  animation: signal-node 1.8s ease-in-out infinite;
}

.signal-center,
.signal-surface {
  position: absolute;
  background: var(--paper-bright);
  color: var(--ink);
}

.signal-surface {
  z-index: 2;
  display: block;
  padding: 17px 18px;
  border: 1px solid rgba(216, 208, 194, 0.96);
  border-radius: 4px;
  text-decoration: none;
  transform: rotate(var(--surface-rotate, 0deg));
  transition:
    transform 320ms cubic-bezier(0.16, 1, 0.3, 1),
    border-color 220ms ease-out,
    box-shadow 320ms ease-out,
    background-color 220ms ease-out;
}

.signal-surface:hover,
.signal-surface:focus-visible,
.signal-surface.is-active,
.signal-surface.is-preview {
  z-index: 5;
  border-color: var(--gold);
  background: #fffaf0;
  box-shadow: 0 22px 58px rgba(0, 0, 0, 0.34);
  transform: translateY(-6px) rotate(0deg);
}

.signal-surface:focus-visible {
  outline-color: var(--gold);
  outline-offset: 5px;
}

.signal-surface__label {
  display: block;
  color: var(--gold-deep);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
}

.signal-surface > strong {
  display: block;
  margin-top: 7px;
  font-size: 1rem;
  line-height: 1.16;
}

.signal-surface__mobile-copy {
  display: none;
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 0.86rem;
  line-height: 1.45;
}

.signal-surface--sources {
  top: 34px;
  left: 0;
  width: 248px;
  min-height: 190px;
  --surface-rotate: -1.2deg;
}

.signal-surface--found {
  top: 24px;
  right: 0;
  width: 218px;
  min-height: 150px;
  --surface-rotate: 1deg;
}

.signal-surface--touch {
  top: 260px;
  right: -4px;
  width: 226px;
  min-height: 166px;
  --surface-rotate: -0.6deg;
}

.signal-surface--conversations {
  left: 0;
  bottom: 64px;
  width: 242px;
  min-height: 160px;
  --surface-rotate: 0.7deg;
}

.signal-surface--report {
  right: 18px;
  bottom: 25px;
  width: 224px;
  min-height: 152px;
  --surface-rotate: -1deg;
}

.signal-source-list,
.signal-search-preview,
.signal-checks,
.signal-conversation-preview,
.signal-report-preview {
  display: grid;
  margin-top: 14px;
  font-family: var(--sans);
  font-style: normal;
}

.signal-source-list span {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 6px 0;
  border-top: 1px solid var(--rule);
  line-height: 1.2;
}

.signal-source-list b,
.signal-source-list i,
.signal-search-preview span,
.signal-search-preview i,
.signal-checks span,
.signal-conversation-preview,
.signal-report-preview {
  font-size: 0.61rem;
}

.signal-source-list b {
  font-weight: 650;
}

.signal-source-list i,
.signal-search-preview i,
.signal-conversation-preview i,
.signal-report-preview i {
  color: var(--gold-deep);
  font-weight: 700;
  font-style: normal;
}

.signal-search-preview {
  grid-template-columns: 1fr auto;
  gap: 0;
  border-top: 2px solid var(--ink);
}

.signal-search-preview span,
.signal-search-preview i {
  padding: 7px 0;
  border-bottom: 1px solid var(--rule);
}

.signal-search-preview i {
  text-align: right;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.signal-checks {
  gap: 6px;
}

.signal-checks span {
  position: relative;
  padding-left: 17px;
  color: var(--ink-soft);
  font-weight: 650;
}

.signal-checks span::before {
  content: "";
  position: absolute;
  top: 0.32em;
  left: 0;
  width: 8px;
  height: 5px;
  border-bottom: 2px solid var(--gold-deep);
  border-left: 2px solid var(--gold-deep);
  transform: rotate(-45deg);
}

.signal-conversation-preview {
  grid-template-columns: 1fr auto;
  gap: 4px 10px;
  padding: 10px;
  border: 1px solid var(--rule);
  background: var(--paper);
}

.signal-conversation-preview b {
  grid-column: 1 / -1;
  font-size: 0.7rem;
}

.signal-conversation-preview span {
  color: var(--muted);
  font-size: 0.61rem;
}

.signal-report-preview {
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
  padding-top: 11px;
  border-top: 2px solid var(--ink);
  color: var(--ink-soft);
}

.signal-report-preview i {
  padding: 4px 5px;
  border: 1px solid var(--gold-deep);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.signal-center {
  left: 50%;
  top: 50%;
  z-index: 4;
  width: 290px;
  min-height: 358px;
  padding: 30px;
  transform: translate(-50%, -50%);
  border-radius: 4px;
  box-shadow: 0 30px 82px rgba(0, 0, 0, 0.48);
}

.signal-center::before {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px solid var(--rule);
  pointer-events: none;
}

.signal-center__eyebrow {
  position: relative;
  color: var(--gold-deep);
  font-size: 0.65rem;
  letter-spacing: 0.17em;
}

.signal-center h2 {
  position: relative;
  max-width: 8ch;
  margin-top: 15px;
  font-size: clamp(2rem, 2.9vw, 2.55rem);
}

.signal-center__summary {
  position: relative;
  margin-top: 13px;
  color: var(--ink-soft);
  font-size: 0.93rem;
  line-height: 1.42;
}

.signal-center__focus {
  position: relative;
  margin-top: 17px;
  padding-top: 13px;
  border-top: 2px solid var(--ink);
}

.signal-center__focus > span {
  display: block;
  color: var(--gold-deep);
  font-size: 0.56rem;
  letter-spacing: 0.11em;
}

.signal-center__focus > strong {
  display: block;
  margin-top: 5px;
  font-size: 0.87rem;
  line-height: 1.3;
}

.signal-center__focus > p {
  margin-top: 5px;
  color: var(--muted);
  font: 500 0.7rem/1.38 var(--sans);
}

.signal-center[data-changing] .signal-center__focus {
  animation: signal-focus 360ms cubic-bezier(0.16, 1, 0.3, 1);
}

.signal-center__meta {
  position: relative;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.signal-center__meta span {
  padding: 5px 6px;
  border: 1px solid var(--rule);
  color: var(--muted);
  font: 700 0.53rem/1 var(--sans);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.signal-center__stamp {
  position: absolute;
  top: 21px;
  right: 16px;
  padding: 6px 7px;
  transform: rotate(5deg);
  border: 2px solid var(--gold-deep);
  border-radius: 4px;
  background: var(--paper-bright);
  color: var(--gold-deep);
  font-size: 0.54rem;
  letter-spacing: 0.1em;
}

.signal-map figcaption {
  position: absolute;
  left: 50%;
  bottom: -22px;
  width: 100%;
  transform: translateX(-50%);
  color: var(--cream-dim);
  font: 600 0.7rem/1.5 var(--sans);
  text-align: center;
}

.signal-support {
  padding: clamp(72px, 10vw, 130px) 0;
  background: var(--paper);
  color: var(--ink);
}

.signal-support__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(420px, 1.14fr);
  gap: clamp(48px, 8vw, 108px);
  align-items: start;
}

.signal-support__label,
.signal-evidence__label {
  color: var(--gold-deep);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
}

.signal-support h2 {
  max-width: 12ch;
  margin-top: 14px;
  font-size: clamp(2.5rem, 5vw, 4.7rem);
}

.signal-support__copy > p {
  max-width: 37em;
  color: var(--ink-soft);
  font-size: 1.12rem;
}

.signal-support__rules {
  margin: 30px 0 0;
  border-top: 2px solid var(--ink);
}

.signal-support__rules div {
  display: grid;
  grid-template-columns: 145px 1fr;
  gap: 20px;
  padding: 17px 0;
  border-bottom: 1px solid var(--rule);
  scroll-margin-top: 100px;
}

.signal-support__rules dt {
  color: var(--gold-deep);
  font: 700 0.7rem/1.4 var(--sans);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.signal-support__rules dd {
  margin: 0;
  color: var(--ink-soft);
}

.signal-evidence {
  margin-top: clamp(38px, 6vh, 62px);
  padding: clamp(28px, 5vw, 46px);
  border: 1px solid var(--rule);
  border-left: 5px solid var(--gold);
  background: var(--paper);
}

.signal-evidence__grid {
  display: grid;
  grid-template-columns: minmax(250px, 0.84fr) minmax(0, 1.16fr);
  gap: clamp(30px, 5vw, 58px);
  align-items: center;
}

.signal-ledger {
  position: relative;
  padding: 26px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--paper-bright);
  box-shadow: 0 18px 45px rgba(26, 20, 8, 0.13);
  transform: rotate(-1deg);
}

.signal-ledger::before {
  content: "SAMPLE";
  position: absolute;
  top: 18px;
  right: 16px;
  padding: 5px 7px;
  transform: rotate(5deg);
  border: 2px solid var(--gold-deep);
  border-radius: 3px;
  background: var(--paper-bright);
  color: var(--gold-deep);
  font: 700 0.55rem/1 var(--sans);
  letter-spacing: 0.12em;
}

.signal-ledger__status {
  color: var(--gold-deep);
  font-size: 0.61rem;
  letter-spacing: 0.14em;
}

.signal-ledger h3 {
  margin: 13px 0 22px;
  padding-right: 70px;
  font-size: 1.55rem;
}

.signal-ledger__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  padding: 13px 0;
  border-top: 1px solid var(--rule);
}

.signal-ledger__row strong { font-size: 0.95rem; }
.signal-ledger__row span { color: var(--gold-deep); font: 700 0.64rem/1.45 var(--sans); text-align: right; }

.signal-ledger__meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 19px;
  color: var(--muted);
  font-size: 0.56rem;
  letter-spacing: 0.08em;
}

.signal-evidence__copy h2 {
  margin: 12px 0 14px;
  font-size: clamp(2rem, 4vw, 3.35rem);
}

.signal-evidence__copy > p {
  color: var(--ink-soft);
}

.signal-proof-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--ink);
}

.signal-proof-list li {
  display: grid;
  grid-template-columns: 118px 1fr;
  gap: 18px;
  padding: 15px 0;
  border-bottom: 1px solid var(--rule);
}

.signal-proof-list strong {
  color: var(--gold-deep);
  font: 700 0.69rem/1.4 var(--sans);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.signal-proof-list span { color: var(--ink-soft); font-size: 0.94rem; }

@keyframes signal-route {
  to { stroke-dashoffset: -90; }
}

@keyframes signal-node {
  50% { transform: scale(1.35); }
}

@keyframes signal-focus {
  from {
    clip-path: inset(0 0 18% 0);
    filter: blur(3px);
    opacity: 0.6;
  }
  to {
    clip-path: inset(0);
    filter: blur(0);
    opacity: 1;
  }
}

@media (max-width: 1120px) {
  .signal-hero__grid {
    grid-template-columns: minmax(300px, 0.72fr) minmax(560px, 1.28fr);
    gap: 26px;
  }

  .signal-surface--sources { left: 1%; }
  .signal-surface--conversations { left: 1%; }
}

@media (max-width: 980px) {
  .signal-hero { min-height: auto; }
  .signal-hero__grid { grid-template-columns: 1fr; }
  .signal-hero__copy { max-width: 720px; }
  .signal-hero__copy h1 { max-width: 11ch; }
  .signal-map { margin-top: 12px; }
  .signal-support__grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .signal-hero { padding-top: 42px; }
  .signal-review-state { margin-bottom: 20px; }
  .signal-hero__copy h1 {
    margin-bottom: 22px;
    font-size: clamp(3rem, 15.5vw, 4.6rem);
  }

  .signal-map {
    min-height: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 34px 0 0;
  }

  .signal-map::before {
    inset: 0;
    border-radius: 28px;
  }

  .signal-map__routes { display: none; }

  .signal-center,
  .signal-surface {
    position: relative;
    inset: auto;
    width: 100%;
    min-height: auto;
    transform: none;
  }

  .signal-center {
    order: -1;
    padding: 30px;
  }

  .signal-center h2 { max-width: 9ch; }

  .signal-surface {
    padding: 17px 18px;
  }

  .signal-surface:hover,
  .signal-surface:focus-visible,
  .signal-surface.is-active,
  .signal-surface.is-preview {
    transform: translateY(-2px);
  }

  .signal-surface.is-active .signal-surface__mobile-copy,
  .signal-surface.is-preview .signal-surface__mobile-copy,
  [data-no-js] .signal-surface__mobile-copy {
    display: block;
  }

  .signal-map figcaption {
    position: relative;
    left: auto;
    bottom: auto;
    transform: none;
    margin-top: 8px;
  }

  .signal-support__grid { gap: 36px; }
  .signal-support__rules div { grid-template-columns: 1fr; gap: 5px; }
  .signal-evidence { padding: 24px 20px; }
  .signal-evidence__grid { grid-template-columns: 1fr; }
  .signal-ledger { transform: none; }
  .signal-proof-list li { grid-template-columns: 1fr; gap: 5px; }
}

@media (prefers-reduced-motion: reduce) {
  .signal-map__routes path,
  .signal-map__node,
  .signal-center__focus,
  .signal-surface {
    animation: none !important;
    transition: none;
  }
}