:root {
  --paper: #f4f2ec;
  --ink: #151515;
  --green: #079447;
  --coral: #ff6048;
  --blue: #1769ff;
  --line: rgba(21, 21, 21, 0.25);
  --muted: #5f5e59;
  --font-sans: "Manrope", Arial, sans-serif;
  --font-mono: "DM Mono", "Courier New", monospace;
  --page-gutter: clamp(20px, 3.2vw, 52px);
  --section-space: clamp(92px, 12vw, 176px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-sans);
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

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

svg {
  display: block;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  color: var(--paper);
  background: var(--ink);
  transform: translateY(-150%);
}

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

.site-header {
  position: absolute;
  z-index: 20;
  top: 0;
  left: var(--page-gutter);
  right: var(--page-gutter);
  height: 96px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid var(--ink);
}

.brand {
  width: max-content;
  font-size: clamp(22px, 2.2vw, 34px);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1;
}

.brand span {
  color: var(--green);
}

.site-nav {
  display: flex;
  gap: clamp(24px, 3.7vw, 56px);
  align-items: center;
  font-size: 14px;
  font-weight: 600;
}

.site-nav a {
  position: relative;
  padding: 12px 0;
}

.site-nav a::after {
  position: absolute;
  bottom: 5px;
  left: 0;
  width: 100%;
  height: 1px;
  content: "";
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

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

.header-cta {
  justify-self: end;
}

.button {
  min-height: 52px;
  display: inline-flex;
  gap: 22px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid var(--ink);
  border-radius: 0;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  transition:
    color 180ms ease,
    background 180ms ease,
    transform 180ms ease;
}

.button svg,
.text-link svg,
.email-link svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: square;
  stroke-linejoin: miter;
  stroke-width: 1.5;
  transition: transform 180ms ease;
}

.button:hover svg,
.text-link:hover svg,
.email-link:hover svg {
  transform: translateX(4px);
}

.button:hover {
  transform: translateY(-2px);
}

.button-dark {
  color: var(--paper);
  background: var(--ink);
}

.button-dark:hover {
  color: var(--ink);
  background: transparent;
}

.button-green {
  color: white;
  background: var(--green);
  border-color: var(--green);
}

.button-green:hover {
  color: var(--green);
  background: transparent;
}

.menu-toggle {
  display: none;
}

.hero {
  position: relative;
  min-height: min(920px, 100svh);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, 0.92fr);
  grid-template-rows: 1fr auto;
  gap: 24px;
  padding:
    clamp(150px, 17vh, 190px) var(--page-gutter)
    clamp(32px, 5vh, 50px);
  border-bottom: 1px solid var(--ink);
  overflow: hidden;
}

.hero-copy {
  position: relative;
  z-index: 2;
  align-self: center;
  padding-bottom: 20px;
}

.hero h1 {
  max-width: 920px;
  margin: 0;
  font-size: clamp(66px, 7.4vw, 116px);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 0.93;
}

.hero-copy > p {
  max-width: 640px;
  margin: clamp(28px, 4vw, 48px) 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.35vw, 19px);
  font-weight: 300;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 34px;
  align-items: center;
  margin-top: clamp(30px, 4vw, 50px);
}

.hero-actions .button {
  min-width: 210px;
}

.text-link {
  display: inline-flex;
  gap: 16px;
  align-items: center;
  padding: 14px 0 8px;
  border-bottom: 1px solid currentColor;
  color: var(--blue);
  font-size: 14px;
  font-weight: 700;
}

.signal-visual {
  min-width: 0;
  align-self: center;
}

.signal-visual svg {
  width: 112%;
  max-width: 790px;
  height: auto;
  overflow: visible;
  transform: translateX(-8%);
}

.query-lines path,
.signal-paths path,
.axis path {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.35;
}

.query-lines path {
  stroke-dasharray: 5 5;
}

.signal-paths .green {
  stroke: var(--green);
  stroke-width: 1.8;
}

.signal-paths .coral {
  stroke: var(--coral);
  stroke-width: 1.8;
}

.signal-paths .blue {
  stroke: var(--blue);
  stroke-width: 1.8;
}

.signal-paths .thin {
  stroke-width: 1;
}

.axis path {
  stroke-width: 1;
}

.nodes .node-black {
  fill: var(--ink);
}

.nodes .node-green {
  fill: var(--green);
}

.nodes .node-coral {
  fill: var(--coral);
}

.nodes .node-blue {
  fill: var(--blue);
}

.junction circle {
  fill: var(--paper);
  stroke: var(--ink);
  stroke-width: 1.4;
}

.junction circle:last-child {
  fill: var(--green);
  stroke: none;
}

.visual-labels {
  fill: var(--green);
  font-family: var(--font-mono);
  font-size: 10px;
}

.visual-labels text:nth-child(n + 3) {
  fill: var(--blue);
}

.hero-index {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
}

.hero-index span {
  padding: 0 9px;
  color: var(--green);
}

.section {
  padding: var(--section-space) var(--page-gutter);
}

.section-number {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
}

.approach {
  display: grid;
  grid-template-columns: minmax(130px, 0.34fr) minmax(0, 0.8fr) minmax(460px, 1fr);
  gap: 52px;
  align-items: start;
}

.approach-heading h2,
.services-heading h2,
.process h2,
.contact h2 {
  margin: 0;
  font-size: clamp(42px, 5vw, 76px);
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.04;
}

.approach-heading p,
.services-heading p,
.process-intro > p,
.contact-copy > p {
  max-width: 590px;
  margin: 32px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.approach-diagram {
  min-height: 500px;
  display: grid;
  grid-template-columns: 1fr 150px 1fr;
  align-items: center;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.diagram-source,
.diagram-output {
  display: flex;
  flex-direction: column;
  gap: 42px;
}

.diagram-source span,
.diagram-output span {
  position: relative;
  font-family: var(--font-mono);
  font-size: 10px;
}

.diagram-source span::after,
.diagram-output span::before {
  position: absolute;
  top: 50%;
  width: 60px;
  border-top: 1px dashed var(--line);
  content: "";
}

.diagram-source span::after {
  left: calc(100% + 10px);
}

.diagram-output span::before {
  right: calc(100% + 10px);
}

.diagram-output {
  text-align: right;
}

.diagram-core {
  position: relative;
  width: 136px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
  text-align: center;
}

.diagram-core::before,
.diagram-core::after {
  position: absolute;
  border: 1px solid var(--line);
  border-radius: 50%;
  content: "";
}

.diagram-core::before {
  inset: 12px;
}

.diagram-core::after {
  inset: 25px;
}

.diagram-core strong {
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.4;
}

.core-pulse {
  position: absolute;
  z-index: 2;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2.2s ease-in-out infinite;
}

.services {
  padding-top: 0;
}

.services-heading {
  display: grid;
  grid-template-columns: 1fr 0.6fr;
  gap: 50px;
  align-items: end;
  margin: 60px 0 80px;
}

.services-heading p {
  margin: 0 0 6px;
  justify-self: end;
}

.service-list {
  border-top: 1px solid var(--ink);
}

.service-row {
  position: relative;
  display: grid;
  grid-template-columns: 90px minmax(260px, 0.7fr) minmax(300px, 1fr) 48px;
  gap: 32px;
  align-items: center;
  min-height: 174px;
  border-bottom: 1px solid var(--ink);
}

.service-number {
  font-family: var(--font-mono);
  font-size: 12px;
}

.service-row h3 {
  margin: 0;
  font-size: clamp(25px, 2.4vw, 38px);
  font-weight: 500;
}

.service-row p {
  max-width: 600px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.service-mark {
  width: 18px;
  height: 18px;
  justify-self: end;
  background: var(--green);
  transform: rotate(45deg);
  transition: transform 220ms ease;
}

.service-row:hover .service-mark {
  transform: rotate(135deg);
}

.service-mark.coral {
  background: var(--coral);
}

.service-mark.blue {
  background: var(--blue);
}

.process {
  position: relative;
  display: grid;
  grid-template-columns: minmax(340px, 0.8fr) minmax(440px, 1fr);
  gap: clamp(70px, 10vw, 150px);
  color: var(--paper);
  background: var(--ink);
  overflow: hidden;
}

.process::after {
  position: absolute;
  right: -12vw;
  bottom: -25vw;
  width: 55vw;
  aspect-ratio: 1;
  border: 1px solid rgba(244, 242, 236, 0.18);
  border-radius: 50%;
  content: "";
}

.process h2 {
  margin-top: 48px;
}

.process-intro > p {
  color: rgba(244, 242, 236, 0.64);
}

.process-list {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(244, 242, 236, 0.5);
}

.process-list li {
  min-height: 145px;
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 26px;
  align-items: center;
  border-bottom: 1px solid rgba(244, 242, 236, 0.5);
}

.process-list li > span {
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 12px;
}

.process-list li:nth-child(2) > span {
  color: var(--coral);
}

.process-list li:nth-child(3) > span {
  color: var(--blue);
}

.process-list h3 {
  margin: 0;
  font-size: 26px;
  font-weight: 500;
}

.process-list p {
  margin: 8px 0 0;
  color: rgba(244, 242, 236, 0.62);
  font-size: 13px;
}

.process-line {
  position: absolute;
  left: var(--page-gutter);
  bottom: 44px;
  width: 35%;
  height: 60px;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dashed rgba(244, 242, 236, 0.35);
}

.process-line span {
  width: 10px;
  height: 10px;
  margin-top: 46px;
  background: var(--green);
}

.process-line span:nth-child(2) {
  background: var(--coral);
}

.process-line span:nth-child(3) {
  background: var(--blue);
}

.process-line span:nth-child(4) {
  background: var(--paper);
}

.contact {
  display: grid;
  grid-template-columns: minmax(340px, 0.78fr) minmax(480px, 1fr);
  gap: clamp(60px, 9vw, 140px);
  border-bottom: 1px solid var(--ink);
}

.contact h2 {
  margin-top: 52px;
}

.email-link {
  display: inline-flex;
  gap: 14px;
  align-items: center;
  margin-top: 54px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--ink);
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.35vw, 18px);
}

.contact-form {
  padding-top: 64px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.contact-form label {
  display: block;
  margin-bottom: 34px;
}

.contact-form label > span {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 13px 0 15px;
  border: 0;
  border-bottom: 1px solid var(--ink);
  border-radius: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font-size: 15px;
  resize: vertical;
}

.contact-form textarea {
  min-height: 120px;
}

.contact-form select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--ink) 50%),
    linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position:
    calc(100% - 7px) 52%,
    100% 52%;
  background-repeat: no-repeat;
  background-size: 7px 7px, 7px 7px;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--green);
  box-shadow: 0 1px 0 var(--green);
}

.form-footer {
  display: flex;
  gap: 24px;
  align-items: center;
}

.form-footer .button {
  min-width: 190px;
}

.form-footer p {
  max-width: 300px;
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.6;
}

.site-footer {
  min-height: 160px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 46px;
  align-items: center;
  padding: 30px var(--page-gutter);
}

.footer-brand {
  font-size: 26px;
}

.site-footer p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(7, 148, 71, 0.4);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(7, 148, 71, 0);
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 1080px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    display: none;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-top: 170px;
  }

  .hero-copy {
    max-width: 850px;
  }

  .signal-visual {
    width: min(740px, 100%);
    justify-self: end;
    margin-top: -60px;
  }

  .signal-visual svg {
    transform: none;
  }

  .approach {
    grid-template-columns: 130px 1fr;
  }

  .approach-diagram {
    grid-column: 2;
    min-height: 420px;
  }
}

@media (max-width: 760px) {
  :root {
    --section-space: 88px;
  }

  .site-header {
    position: absolute;
    height: 78px;
  }

  .header-cta {
    display: none;
  }

  .menu-toggle {
    width: 42px;
    height: 42px;
    display: grid;
    justify-self: end;
    place-content: center;
    gap: 7px;
    padding: 0;
    border: 1px solid var(--ink);
    border-radius: 0;
    color: var(--ink);
    background: transparent;
  }

  .menu-toggle span {
    width: 19px;
    height: 1px;
    display: block;
    background: currentColor;
    transition: transform 180ms ease;
  }

  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(4px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-4px) rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: -1;
    display: flex;
    flex-direction: column;
    gap: 0;
    align-items: flex-start;
    justify-content: center;
    padding: 90px var(--page-gutter) 30px;
    visibility: hidden;
    background: var(--paper);
    opacity: 0;
    transition:
      opacity 180ms ease,
      visibility 180ms ease;
  }

  .site-nav.is-open {
    visibility: visible;
    opacity: 1;
  }

  .site-nav a {
    width: 100%;
    padding: 20px 0;
    border-bottom: 1px solid var(--ink);
    font-size: 34px;
    font-weight: 500;
  }

  .hero {
    display: block;
    min-height: 100svh;
    padding-top: 130px;
  }

  .hero h1 {
    font-size: clamp(52px, 15.4vw, 82px);
  }

  .hero-copy > p {
    max-width: 520px;
    line-height: 1.6;
  }

  .hero-actions {
    flex-wrap: wrap;
    gap: 18px 28px;
  }

  .signal-visual {
    width: 118%;
    margin: -10px -18% 0 0;
  }

  .hero-index {
    margin-top: -16px;
    line-height: 1.8;
  }

  .approach,
  .services-heading,
  .process,
  .contact {
    grid-template-columns: 1fr;
  }

  .approach,
  .process,
  .contact {
    gap: 48px;
  }

  .approach-heading h2,
  .services-heading h2,
  .process h2,
  .contact h2 {
    font-size: clamp(40px, 12vw, 58px);
  }

  .approach-diagram {
    grid-column: auto;
    grid-template-columns: 1fr 110px 1fr;
    min-height: 340px;
  }

  .diagram-core {
    width: 100px;
  }

  .diagram-source span::after,
  .diagram-output span::before {
    width: 26px;
  }

  .services-heading {
    gap: 22px;
    margin: 42px 0 56px;
  }

  .services-heading p {
    justify-self: start;
  }

  .service-row {
    grid-template-columns: 44px 1fr 24px;
    gap: 18px;
    min-height: 0;
    padding: 34px 0;
  }

  .service-row p {
    grid-column: 2 / -1;
  }

  .service-mark {
    grid-column: 3;
    grid-row: 1;
    width: 14px;
    height: 14px;
  }

  .process {
    padding-bottom: 100px;
  }

  .process-line {
    display: none;
  }

  .contact-form {
    padding-top: 10px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .form-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .form-footer .button {
    width: 100%;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 18px;
    min-height: 190px;
    align-content: center;
  }
}

@media (max-width: 430px) {
  .hero-actions .button {
    width: 100%;
  }

  .signal-visual {
    width: 135%;
    margin-right: -25%;
  }

  .approach-diagram {
    display: flex;
    min-height: 0;
    flex-direction: column;
    gap: 35px;
    padding: 40px 0;
  }

  .diagram-source,
  .diagram-output {
    width: 100%;
    gap: 18px;
    text-align: left;
  }

  .diagram-source span::after,
  .diagram-output span::before {
    display: none;
  }

  .service-row {
    grid-template-columns: 34px 1fr;
  }

  .service-mark {
    display: none;
  }
}