@charset "UTF-8";

*, *::before, *::after {
  box-sizing: border-box;
}

:root {
  --signal-black: #08181b;
  --signal-black-2: #102326;
  --signal-black-3: #183034;
  --signal-paper: #f3f0e8;
  --signal-paper-2: #e5ded2;
  --signal-white: #fffdf7;
  --signal-lime: #c9f55a;
  --signal-aqua: #5ad8bf;
  --signal-coral: #f36f56;
  --signal-coral-ink: #b74332;
  --signal-blue: #4f65cf;
  --signal-muted: #93a4a1;
  --signal-border: rgba(255, 255, 255, .16);
  --signal-display: "Syne", sans-serif;
  --signal-body: "IBM Plex Sans JP", sans-serif;
  --signal-mono: "IBM Plex Mono", monospace;
  --signal-ease: cubic-bezier(.16, 1, .3, 1);
}

html {
  scroll-behavior: smooth;
}

body.signal-page {
  margin: 0;
  color: var(--signal-white);
  background: var(--signal-black);
  font-family: var(--signal-body);
  line-height: 1.75;
  overflow-x: clip;
}

.signal-page a {
  color: inherit;
  text-decoration: none;
}

.signal-page button,
.signal-page a {
  -webkit-tap-highlight-color: transparent;
}

.signal-page :focus-visible {
  outline: 3px solid var(--signal-lime);
  outline-offset: 4px;
}

.signal-skip {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 16px;
  color: var(--signal-black);
  background: var(--signal-lime);
  font-weight: 700;
  transform: translateY(-180%);
  transition: transform .2s ease;
}

.signal-skip:focus {
  transform: translateY(0);
}

.signal-status {
  position: relative;
  z-index: 80;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 31px;
  padding: 4px 22px;
  color: var(--signal-black);
  background: var(--signal-lime);
  border-bottom: 1px solid var(--signal-black);
  font: 700 10px/1.3 var(--signal-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.signal-status span:nth-child(2) {
  padding-inline: 18px;
  border-inline: 1px solid rgba(8, 11, 12, .28);
}

.signal-status span:last-child {
  text-align: right;
}

.signal-header {
  position: sticky;
  top: 0;
  z-index: 70;
  border-bottom: 1px solid var(--signal-border);
  background: rgba(8, 24, 27, .88);
  backdrop-filter: blur(18px);
}

.signal-shell {
  width: min(100% - 64px, 1340px);
  margin-inline: auto;
}

.signal-header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.signal-brand {
  display: inline-flex;
  align-items: center;
  gap: 15px;
  min-width: max-content;
}

.signal-brand-mark {
  position: relative;
  width: 44px;
  height: 30px;
}

.signal-brand-mark::before,
.signal-brand-mark::after {
  content: "";
  position: absolute;
  top: 4px;
  width: 21px;
  height: 21px;
  border: 2px solid currentColor;
}

.signal-brand-mark::before {
  left: 0;
  border-color: var(--signal-aqua);
}

.signal-brand-mark::after {
  right: 0;
  border-color: var(--signal-lime);
}

.signal-brand-mark i {
  position: absolute;
  top: 14px;
  left: 18px;
  z-index: 2;
  width: 9px;
  height: 2px;
  background: var(--signal-coral);
}

.signal-brand strong {
  display: block;
  font: 800 18px/.9 var(--signal-display);
  letter-spacing: -.03em;
}

.signal-brand small {
  display: block;
  margin-top: 7px;
  color: var(--signal-muted);
  font: 500 8px/1 var(--signal-mono);
  letter-spacing: .15em;
}

.signal-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.5vw, 38px);
}

.signal-nav a {
  position: relative;
  color: #c8d0ce;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .035em;
}

.signal-nav a:not(.signal-nav-cta)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 2px;
  background: var(--signal-aqua);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .35s var(--signal-ease);
}

.signal-nav a:hover::after,
.signal-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.signal-nav-cta {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 17px;
  color: var(--signal-black) !important;
  background: var(--signal-lime);
  border: 1px solid var(--signal-lime);
  font-family: var(--signal-mono);
  transition: color .25s ease, background .25s ease;
}

.signal-nav-cta:hover {
  color: var(--signal-lime) !important;
  background: transparent;
}

.signal-menu {
  display: none;
  width: 46px;
  height: 46px;
  place-items: center;
  padding: 0;
  color: var(--signal-white);
  background: transparent;
  border: 1px solid var(--signal-border);
}

.signal-menu span,
.signal-menu span::before,
.signal-menu span::after {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform .25s ease, opacity .25s ease;
}

.signal-menu span {
  position: relative;
}

.signal-menu span::before,
.signal-menu span::after {
  content: "";
  position: absolute;
  left: 0;
}

.signal-menu span::before { top: -6px; }
.signal-menu span::after { top: 6px; }

.signal-menu[aria-expanded="true"] span {
  background: transparent;
}

.signal-menu[aria-expanded="true"] span::before {
  top: 0;
  transform: rotate(45deg);
}

.signal-menu[aria-expanded="true"] span::after {
  top: 0;
  transform: rotate(-45deg);
}

.signal-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  width: 100%;
  height: 3px;
  pointer-events: none;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--signal-coral);
}

.signal-hero {
  position: relative;
  min-height: 1010px;
  padding: clamp(76px, 8vw, 116px) 0 96px;
  overflow: hidden;
  background:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px),
    var(--signal-black);
  background-size: 44px 44px;
}

.signal-hero::before {
  content: "";
  position: absolute;
  top: -190px;
  right: -180px;
  width: 620px;
  height: 620px;
  border: 1px solid rgba(90, 216, 191, .32);
  border-radius: 50%;
  box-shadow:
    0 0 0 80px rgba(90, 216, 191, .025),
    0 0 0 160px rgba(201, 245, 90, .018);
}

.signal-hero-head {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, .34fr);
  align-items: end;
  gap: 48px;
}

.signal-kicker,
.signal-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--signal-aqua);
  font: 600 10px/1 var(--signal-mono);
  letter-spacing: .17em;
  text-transform: uppercase;
}

.signal-kicker::before,
.signal-label::before {
  content: "";
  width: 36px;
  height: 3px;
  background: currentColor;
}

.signal-hero h1 {
  margin: 26px 0 0;
  font: 800 clamp(4.6rem, 10.4vw, 9.4rem)/.78 var(--signal-display);
  letter-spacing: -.085em;
  text-transform: uppercase;
}

.signal-hero h1 span {
  display: block;
}

.signal-hero h1 span:nth-child(2) {
  color: var(--signal-lime);
  transform: translateX(clamp(22px, 7vw, 110px));
}

.signal-hero h1 span:nth-child(3) {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--signal-white);
}

.signal-hero-aside {
  position: relative;
  z-index: 3;
  padding: 22px 0 16px 24px;
  border-left: 1px solid var(--signal-border);
  background: var(--signal-black);
  box-shadow: 12px 12px 0 rgba(201, 245, 90, .07);
}

.signal-hero-aside strong {
  display: block;
  color: var(--signal-lime);
  font: 700 clamp(1.4rem, 2.3vw, 2rem)/1.4 var(--signal-body);
  letter-spacing: -.04em;
}

.signal-hero-aside p {
  margin: 19px 0 0;
  color: #aeb8b6;
  font-size: .9rem;
  line-height: 1.85;
}

.signal-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.signal-button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  min-width: 190px;
  padding: 13px 18px;
  border: 1px solid rgba(255, 255, 255, .4);
  font: 600 11px/1 var(--signal-mono);
  letter-spacing: .04em;
  text-transform: uppercase;
  transition: transform .3s var(--signal-ease), color .3s ease, background .3s ease, border-color .3s ease;
}

.signal-button::after {
  content: "↗";
  font-size: 1rem;
}

.signal-button:hover {
  transform: translateY(-4px);
  border-color: var(--signal-aqua);
}

.signal-button-primary {
  color: var(--signal-black);
  background: var(--signal-lime);
  border-color: var(--signal-lime);
}

.signal-button-primary:hover {
  color: var(--signal-lime);
  background: transparent;
}

.signal-board {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(210px, .8fr) minmax(330px, 1.35fr) minmax(210px, .8fr);
  min-height: 338px;
  margin-top: clamp(58px, 7vw, 92px);
  border: 1px solid rgba(255, 255, 255, .34);
  background: rgba(10, 27, 30, .94);
  box-shadow: 24px 26px 0 rgba(90, 216, 191, .08);
}

.signal-board::before {
  content: "LIVE ROUTING / 03 ACTIVE SIGNALS";
  position: absolute;
  top: -28px;
  left: -1px;
  padding: 7px 12px;
  color: var(--signal-black);
  background: var(--signal-aqua);
  font: 700 9px/1 var(--signal-mono);
  letter-spacing: .08em;
}

.signal-board-column {
  position: relative;
  min-width: 0;
  padding: 26px;
}

.signal-board-column + .signal-board-column {
  border-left: 1px solid var(--signal-border);
}

.signal-board-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--signal-border);
  color: var(--signal-muted);
  font: 600 9px/1 var(--signal-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.signal-board-title i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal-lime);
  box-shadow: 0 0 0 5px rgba(201, 245, 90, .1);
  animation: signal-pulse 2s ease-in-out infinite;
}

.signal-ticket,
.signal-decision {
  position: relative;
  margin-top: 14px;
  padding: 14px 15px;
  border: 1px solid rgba(255, 255, 255, .18);
  background: var(--signal-black-2);
}

.signal-ticket b,
.signal-decision b {
  display: block;
  font-size: .78rem;
}

.signal-ticket span,
.signal-decision span {
  display: block;
  margin-top: 5px;
  color: var(--signal-muted);
  font-size: .68rem;
  line-height: 1.55;
}

.signal-ticket::before,
.signal-decision::before {
  content: "";
  position: absolute;
  top: 16px;
  left: -4px;
  width: 7px;
  height: 7px;
  background: var(--signal-coral);
}

.signal-ticket:nth-of-type(3)::before { background: var(--signal-aqua); }
.signal-ticket:nth-of-type(4)::before { background: var(--signal-lime); }

.signal-decision {
  background: rgba(201, 245, 90, .05);
}

.signal-decision.handoff {
  border-color: rgba(243, 111, 86, .65);
  background: rgba(243, 111, 86, .08);
}

.signal-router {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 284px;
  overflow: hidden;
}

.signal-router svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.signal-router path {
  fill: none;
  stroke: rgba(255, 255, 255, .17);
  stroke-width: 1;
}

.signal-router path.active {
  stroke: var(--signal-aqua);
  stroke-width: 2;
  stroke-dasharray: 5 9;
  animation: signal-route 4s linear infinite;
}

.signal-router-core {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 142px;
  aspect-ratio: 1;
  padding: 18px;
  border: 1px solid var(--signal-aqua);
  border-radius: 50%;
  text-align: center;
  background: var(--signal-black);
  box-shadow:
    0 0 0 12px rgba(90, 216, 191, .055),
    0 0 0 24px rgba(90, 216, 191, .025);
}

.signal-router-core b {
  font: 800 1.05rem/1 var(--signal-display);
}

.signal-router-core span {
  display: block;
  margin-top: 9px;
  color: var(--signal-aqua);
  font: 600 8px/1.5 var(--signal-mono);
  letter-spacing: .08em;
}

.signal-board-foot {
  position: absolute;
  right: 0;
  bottom: -30px;
  display: flex;
  gap: 1px;
}

.signal-board-foot span {
  padding: 8px 10px;
  color: var(--signal-black);
  background: var(--signal-paper);
  font: 700 8px/1 var(--signal-mono);
}

.signal-section {
  position: relative;
  padding: clamp(92px, 10vw, 154px) 0;
}

.signal-section-paper {
  color: var(--signal-black);
  background: var(--signal-paper);
}

.signal-section-paper::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .32;
  background-image: linear-gradient(rgba(8, 11, 12, .08) 1px, transparent 1px);
  background-size: 100% 42px;
}

.signal-section-dark {
  background: var(--signal-black-2);
}

.signal-section-acid {
  color: var(--signal-black);
  background: var(--signal-lime);
}

.signal-section-head {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(320px, .46fr);
  align-items: end;
  gap: 64px;
  margin-bottom: 62px;
}

.signal-section-index {
  display: block;
  margin-bottom: 20px;
  color: var(--signal-coral-ink);
  font: 700 10px/1 var(--signal-mono);
  letter-spacing: .15em;
  text-transform: uppercase;
}

.signal-section h2,
.signal-case-page h1 {
  margin: 0;
  font-family: var(--signal-display);
  letter-spacing: -.065em;
}

.signal-section h2 {
  max-width: 920px;
  font-size: clamp(2.75rem, 6.2vw, 6.3rem);
  line-height: .98;
}

.signal-section-head > p {
  margin: 0;
  color: inherit;
  opacity: .68;
  font-size: .95rem;
}

.signal-flow-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid rgba(8, 11, 12, .36);
}

.signal-flow-grid::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 33.333%;
  height: 9px;
  background: var(--signal-coral);
}

.signal-flow-card {
  position: relative;
  min-height: 360px;
  padding: 30px 34px 34px;
}

.signal-flow-card + .signal-flow-card {
  border-left: 1px solid rgba(8, 11, 12, .28);
}

.signal-flow-no {
  color: rgba(8, 11, 12, .26);
  font: 800 clamp(4rem, 8vw, 7.4rem)/1 var(--signal-display);
  letter-spacing: -.08em;
}

.signal-flow-card h3 {
  margin: 44px 0 16px;
  font-size: clamp(1.35rem, 2vw, 1.85rem);
  line-height: 1.45;
}

.signal-flow-card p {
  margin: 0;
  font-size: .9rem;
  opacity: .68;
}

.signal-flow-card small {
  position: absolute;
  right: 28px;
  bottom: 28px;
  color: rgba(8, 11, 12, .5);
  font: 600 8px/1 var(--signal-mono);
  letter-spacing: .12em;
}

.signal-console-layout {
  display: grid;
  grid-template-columns: minmax(240px, .37fr) minmax(0, 1fr);
  gap: clamp(44px, 7vw, 96px);
  align-items: start;
}

.signal-console-copy {
  position: sticky;
  top: 126px;
}

.signal-console-copy h2 {
  font-size: clamp(2.5rem, 4.5vw, 4.8rem);
}

.signal-console-copy p {
  margin: 25px 0 0;
  color: var(--signal-muted);
  font-size: .9rem;
}

.signal-console-window {
  border: 1px solid rgba(255, 255, 255, .3);
  background: #0c1011;
  box-shadow: 20px 24px 0 rgba(201, 245, 90, .08);
}

.signal-console-bar {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--signal-border);
  font: 600 9px/1 var(--signal-mono);
  letter-spacing: .09em;
}

.signal-console-bar b {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.signal-console-bar b::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal-lime);
}

.signal-console-main {
  display: grid;
  grid-template-columns: 190px 1fr;
  min-height: 520px;
}

.signal-console-sidebar {
  padding: 18px 12px;
  border-right: 1px solid var(--signal-border);
}

.signal-console-sidebar strong {
  display: block;
  padding: 12px;
  color: var(--signal-aqua);
  font: 700 10px/1 var(--signal-mono);
}

.signal-thread {
  margin-top: 6px;
  padding: 13px 12px;
  border: 1px solid transparent;
}

.signal-thread.active {
  border-color: rgba(90, 216, 191, .46);
  background: rgba(90, 216, 191, .07);
}

.signal-thread b {
  display: block;
  font-size: .73rem;
}

.signal-thread span {
  display: block;
  margin-top: 4px;
  color: var(--signal-muted);
  font-size: .62rem;
}

.signal-conversation {
  padding: clamp(24px, 4vw, 48px);
}

.signal-conversation-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--signal-border);
}

.signal-conversation-head b {
  font-size: .92rem;
}

.signal-confidence {
  padding: 7px 9px;
  color: var(--signal-black);
  background: var(--signal-aqua);
  font: 700 8px/1 var(--signal-mono);
}

.signal-message {
  width: min(82%, 500px);
  margin-top: 18px;
  padding: 13px 15px;
  border: 1px solid var(--signal-border);
  color: #cad2d0;
  background: var(--signal-black-3);
  font-size: .76rem;
}

.signal-message.visitor {
  margin-left: auto;
  color: var(--signal-black);
  background: var(--signal-lime);
  border-color: var(--signal-lime);
}

.signal-handoff {
  margin-top: 25px;
  padding: 17px;
  border: 1px solid var(--signal-coral);
  color: #ffc7bb;
  background: rgba(243, 111, 86, .08);
  font: 600 10px/1.65 var(--signal-mono);
}

.signal-boundary-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.signal-boundary {
  min-height: 250px;
  padding: 26px;
  color: var(--signal-white);
  background: var(--signal-black);
  border: 1px solid var(--signal-black);
}

.signal-boundary:nth-child(1),
.signal-boundary:nth-child(4) {
  grid-column: span 7;
}

.signal-boundary:nth-child(2),
.signal-boundary:nth-child(3) {
  grid-column: span 5;
}

.signal-boundary:nth-child(2) {
  color: var(--signal-black);
  background: var(--signal-paper);
}

.signal-boundary:nth-child(3) {
  color: var(--signal-black);
  background: var(--signal-coral);
}

.signal-boundary b {
  font: 700 9px/1 var(--signal-mono);
  letter-spacing: .12em;
}

.signal-boundary h3 {
  margin: 70px 0 13px;
  font-size: clamp(1.3rem, 2.2vw, 2.1rem);
  line-height: 1.35;
}

.signal-boundary p {
  max-width: 620px;
  margin: 0;
  font-size: .84rem;
  opacity: .68;
}

.signal-final {
  position: relative;
  padding: clamp(92px, 12vw, 180px) 0;
  color: var(--signal-black);
  background: var(--signal-paper);
  overflow: hidden;
}

.signal-final::after {
  content: "OPEN THE SYSTEM";
  position: absolute;
  right: -20px;
  bottom: -38px;
  color: rgba(8, 11, 12, .045);
  font: 800 clamp(5rem, 14vw, 13rem)/1 var(--signal-display);
  white-space: nowrap;
}

.signal-final-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 48px;
}

.signal-final h2 {
  max-width: 900px;
  margin: 0;
  font: 800 clamp(3rem, 7vw, 7.2rem)/.98 var(--signal-display);
  letter-spacing: -.075em;
}

.signal-final h2 em {
  color: var(--signal-coral);
  font-style: normal;
}

.signal-final .signal-button {
  color: var(--signal-white);
  background: var(--signal-black);
  border-color: var(--signal-black);
}

.signal-final .signal-button:hover {
  color: var(--signal-black);
  background: var(--signal-lime);
}

.signal-footer {
  padding: 48px 0 34px;
  color: #a9b2b0;
  background: var(--signal-black);
  border-top: 1px solid var(--signal-border);
}

.signal-footer-top,
.signal-footer-bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}

.signal-footer-word {
  color: var(--signal-white);
  font: 800 clamp(2rem, 4vw, 4rem)/1 var(--signal-display);
  letter-spacing: -.06em;
}

.signal-footer-word em {
  color: var(--signal-lime);
  font-style: normal;
}

.signal-footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px 28px;
  font-size: .72rem;
}

.signal-footer-nav a:hover {
  color: var(--signal-aqua);
}

.signal-footer-bottom {
  align-items: center;
  margin-top: 38px;
  padding-top: 20px;
  border-top: 1px solid var(--signal-border);
  font: 500 9px/1.5 var(--signal-mono);
}

[data-signal-reveal] {
  opacity: 0;
  transform: translateY(38px);
  transition: opacity .8s var(--signal-ease), transform .8s var(--signal-ease);
}

[data-signal-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* Case study — editorial case file */
body.signal-case-page {
  color: var(--signal-black);
  background: var(--signal-paper);
}

.signal-case-page .signal-header {
  color: var(--signal-white);
}

.signal-case-hero {
  position: relative;
  min-height: 900px;
  padding: 66px 0 100px;
  overflow: hidden;
  background:
    linear-gradient(rgba(8, 11, 12, .075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 11, 12, .075) 1px, transparent 1px),
    var(--signal-paper);
  background-size: 52px 52px;
}

.signal-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: rgba(8, 11, 12, .58);
  font: 600 9px/1 var(--signal-mono);
  letter-spacing: .1em;
}

.signal-case-title {
  position: relative;
  margin-top: 68px;
}

.signal-case-no {
  position: absolute;
  top: -34px;
  right: 0;
  color: var(--signal-coral-ink);
  font: 800 12px/1 var(--signal-mono);
  letter-spacing: .18em;
}

.signal-case-title h1 {
  font-size: clamp(4.6rem, 13.4vw, 12.5rem);
  line-height: .75;
  text-transform: uppercase;
}

.signal-case-title h1 span {
  display: block;
}

.signal-case-title h1 span:last-child {
  margin-left: 19vw;
  color: var(--signal-blue);
}

.signal-case-lead {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(360px, .54fr);
  align-items: start;
  gap: 70px;
  margin-top: 75px;
}

.signal-case-lead > p {
  max-width: 780px;
  margin: 0;
  font-size: clamp(1.25rem, 2.3vw, 2.05rem);
  font-weight: 600;
  line-height: 1.65;
  letter-spacing: -.03em;
}

.signal-case-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin: 0;
  border-top: 1px solid rgba(8, 11, 12, .35);
  border-left: 1px solid rgba(8, 11, 12, .35);
}

.signal-case-meta div {
  min-height: 92px;
  padding: 15px;
  border-right: 1px solid rgba(8, 11, 12, .35);
  border-bottom: 1px solid rgba(8, 11, 12, .35);
}

.signal-case-meta dt {
  color: rgba(8, 11, 12, .48);
  font: 700 8px/1 var(--signal-mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.signal-case-meta dd {
  margin: 13px 0 0;
  font-size: .76rem;
  font-weight: 600;
  line-height: 1.55;
}

.signal-case-board {
  position: relative;
  margin-top: -26px;
  color: var(--signal-white);
  background: var(--signal-black);
}

.signal-case-board .signal-board {
  margin: 0;
  box-shadow: none;
}

.signal-case-board-note {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 17px 0;
  color: var(--signal-muted);
  font: 600 9px/1.5 var(--signal-mono);
}

.signal-case-section {
  position: relative;
  padding: clamp(90px, 10vw, 150px) 0;
}

.signal-case-grid {
  display: grid;
  grid-template-columns: minmax(220px, .4fr) minmax(0, 1fr);
  gap: clamp(48px, 9vw, 132px);
}

.signal-case-sticky {
  position: sticky;
  top: 120px;
  align-self: start;
}

.signal-case-sticky small {
  display: block;
  color: var(--signal-coral-ink);
  font: 700 9px/1 var(--signal-mono);
  letter-spacing: .15em;
}

.signal-case-sticky h2 {
  margin: 22px 0 0;
  font: 800 clamp(2.6rem, 5vw, 5.2rem)/.98 var(--signal-display);
  letter-spacing: -.065em;
}

.signal-timeline {
  border-top: 1px solid rgba(8, 11, 12, .36);
}

.signal-timeline article {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 28px;
  padding: 31px 0;
  border-bottom: 1px solid rgba(8, 11, 12, .26);
}

.signal-timeline time {
  color: var(--signal-blue);
  font: 700 9px/1.5 var(--signal-mono);
}

.signal-timeline h3 {
  margin: 0 0 9px;
  font-size: 1.2rem;
}

.signal-timeline p {
  margin: 0;
  color: rgba(8, 11, 12, .64);
  font-size: .86rem;
}

.signal-case-dark {
  color: var(--signal-white);
  background: var(--signal-black-2);
}

.signal-decision-list {
  counter-reset: decision;
}

.signal-decision-row {
  counter-increment: decision;
  display: grid;
  grid-template-columns: 92px minmax(220px, .65fr) minmax(0, 1fr);
  gap: 28px;
  padding: 30px 0;
  border-top: 1px solid var(--signal-border);
}

.signal-decision-row:last-child {
  border-bottom: 1px solid var(--signal-border);
}

.signal-decision-row::before {
  content: "0" counter(decision);
  color: var(--signal-lime);
  font: 800 2rem/1 var(--signal-display);
}

.signal-decision-row h3 {
  margin: 0;
  font-size: 1.2rem;
}

.signal-decision-row p {
  margin: 0;
  color: var(--signal-muted);
  font-size: .84rem;
}

.signal-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  margin-top: 56px;
  background: rgba(255, 255, 255, .18);
  border: 1px solid rgba(255, 255, 255, .18);
}

.signal-stack span {
  flex: 1 1 180px;
  min-height: 118px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
  background: var(--signal-black);
}

.signal-stack b {
  font: 700 1rem/1 var(--signal-display);
}

.signal-stack small {
  color: var(--signal-muted);
  font: 500 8px/1.4 var(--signal-mono);
}

@keyframes signal-pulse {
  0%, 100% { opacity: .45; transform: scale(.78); }
  50% { opacity: 1; transform: scale(1); }
}

@keyframes signal-route {
  to { stroke-dashoffset: -56; }
}

@media (max-width: 1060px) {
  .signal-status {
    grid-template-columns: 1fr auto;
  }

  .signal-status span:nth-child(2) {
    display: none;
  }

  .signal-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 24px;
    left: 24px;
    display: none;
    padding: 14px;
    background: var(--signal-black);
    border: 1px solid var(--signal-border);
    box-shadow: 0 24px 50px rgba(0, 0, 0, .36);
  }

  .signal-nav.is-open {
    display: grid;
  }

  .signal-nav a {
    min-height: 46px;
    display: flex;
    align-items: center;
    padding: 8px 10px;
  }

  .signal-menu {
    display: grid;
  }

  .signal-hero-head,
  .signal-section-head,
  .signal-case-lead {
    grid-template-columns: 1fr;
  }

  .signal-hero-head > * {
    min-width: 0;
  }

  .signal-hero-aside {
    max-width: 680px;
    margin-left: auto;
  }

  .signal-board {
    grid-template-columns: 1fr 1.2fr;
  }

  .signal-board-column:last-child {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    border-top: 1px solid var(--signal-border);
    border-left: 0;
  }

  .signal-board-column:last-child .signal-board-title {
    grid-column: 1 / -1;
  }

  .signal-console-layout,
  .signal-case-grid {
    grid-template-columns: 1fr;
  }

  .signal-console-copy,
  .signal-case-sticky {
    position: static;
  }

  .signal-case-title h1 span:last-child {
    margin-left: 9vw;
  }
}

@media (max-width: 720px) {
  .signal-status {
    min-height: 28px;
    padding-inline: 12px;
    font-size: 8px;
  }

  .signal-status span:last-child {
    display: none;
  }

  .signal-shell {
    width: min(100% - 32px, 1340px);
  }

  .signal-header-inner {
    min-height: 66px;
  }

  .signal-brand small {
    display: none;
  }

  .signal-hero {
    min-height: auto;
    padding-top: 68px;
  }

  .signal-hero h1 {
    font-size: clamp(2.45rem, 10.8vw, 3.2rem);
    line-height: .82;
  }

  .signal-hero h1 span:nth-child(2) {
    transform: none;
  }

  .signal-hero-aside {
    padding-left: 17px;
  }

  .signal-hero-actions,
  .signal-final-inner {
    display: grid;
    grid-template-columns: 1fr;
  }

  .signal-button {
    width: 100%;
  }

  .signal-board {
    display: block;
    margin-top: 72px;
    box-shadow: 10px 12px 0 rgba(90, 216, 191, .08);
  }

  .signal-board-column + .signal-board-column {
    border-top: 1px solid var(--signal-border);
    border-left: 0;
  }

  .signal-board-column:last-child {
    display: block;
  }

  .signal-router {
    min-height: 260px;
  }

  .signal-board-foot {
    display: none;
  }

  .signal-section-head {
    gap: 26px;
    margin-bottom: 42px;
  }

  .signal-section h2 {
    font-size: clamp(2.45rem, 13vw, 4rem);
  }

  .signal-flow-grid {
    grid-template-columns: 1fr;
  }

  .signal-flow-grid::before {
    width: 100%;
  }

  .signal-flow-card {
    min-height: 285px;
  }

  .signal-flow-card + .signal-flow-card {
    border-top: 1px solid rgba(8, 11, 12, .28);
    border-left: 0;
  }

  .signal-console-main {
    grid-template-columns: 1fr;
  }

  .signal-console-sidebar {
    display: grid;
    grid-template-columns: repeat(3, minmax(120px, 1fr));
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--signal-border);
  }

  .signal-console-sidebar strong {
    display: none;
  }

  .signal-conversation {
    padding: 22px 16px;
  }

  .signal-message {
    width: 90%;
  }

  .signal-boundary-grid {
    display: grid;
    grid-template-columns: 1fr;
  }

  .signal-boundary:nth-child(n) {
    grid-column: auto;
  }

  .signal-final-inner {
    align-items: stretch;
  }

  .signal-footer-top,
  .signal-footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .signal-footer-nav {
    justify-content: flex-start;
  }

  .signal-case-hero {
    min-height: auto;
    padding-top: 42px;
  }

  .signal-case-title {
    margin-top: 56px;
  }

  .signal-case-title h1 {
    font-size: clamp(3.8rem, 20vw, 6.2rem);
    line-height: .8;
  }

  .signal-case-title h1 span:last-child {
    margin-left: 0;
  }

  .signal-case-lead {
    gap: 38px;
    margin-top: 56px;
  }

  .signal-case-meta {
    grid-template-columns: 1fr 1fr;
  }

  .signal-timeline article,
  .signal-decision-row {
    grid-template-columns: 1fr;
  }

  .signal-decision-row {
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

  [data-signal-reveal] {
    opacity: 1;
    transform: none;
  }
}