:root {
  color-scheme: light;
  --blue: #2349ff;
  --cyan: #00b5ff;
  --violet: #8c5cff;
  --purple: #460077;
  --deep: #280053;
  --ink: #26334d;
  --muted: #667085;
  --line: #e0e0e0;
  --soft: #f7f5ff;
  --paper: #ffffff;
  --coral: #ffb8a2;
  --sun: #ff9f68;
  --sun-soft: #fff1df;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Source Sans 3", "Source Sans Pro", "Segoe UI", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--purple);
}

.shell {
  width: min(1180px, calc(100% - 3rem));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 6rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  gap: 0.8rem;
  align-items: center;
  color: var(--deep);
  font-size: 1.08rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  width: 2.35rem;
  height: 2.35rem;
  flex: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.94rem;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--blue);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--blue);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(18rem, 0.55fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: center;
  min-height: 38rem;
  padding: 6rem 0;
  overflow: hidden;
}

.hero-copy {
  position: relative;
  z-index: 1;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1,
h2,
h3 {
  color: var(--deep);
  font-weight: 300;
}

h1 {
  max-width: 830px;
  margin: 0;
  font-size: clamp(3.5rem, 8vw, 7.25rem);
  letter-spacing: -0.065em;
  line-height: 0.94;
}

h2 {
  margin: 0;
  font-size: clamp(2.3rem, 5vw, 4.4rem);
  letter-spacing: -0.045em;
  line-height: 1;
}

h3 {
  margin: 0 0 0.7rem;
  font-size: 1.45rem;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.lede {
  max-width: 750px;
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  font-weight: 300;
  line-height: 1.55;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.3rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  padding: 0.75rem 1.15rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--blue);
  color: #fff;
  background: var(--blue);
  font-weight: 650;
  text-decoration: none;
}

.button:hover {
  color: #fff;
  background: var(--purple);
  border-color: var(--purple);
}

.button.secondary {
  color: var(--blue);
  background: #fff;
}

.button.secondary:hover {
  color: var(--purple);
  border-color: var(--purple);
}

.network {
  width: 100%;
  max-width: 390px;
  justify-self: end;
}

html[data-site="collaborate"] .network {
  width: min(145%, 540px);
  max-width: none;
}

.section {
  padding: 6rem 0;
  border-top: 1px solid var(--line);
}

.tool-strip {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 2rem;
  align-items: center;
  padding: 1.4rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.tool-strip-label {
  margin: 0;
  color: var(--violet);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tool-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
}

.tool-links a {
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 650;
  text-decoration: none;
}

.tool-links a::after {
  content: " ↗";
  color: var(--cyan);
  font-size: 0.8em;
}

.tool-links a:hover {
  color: var(--blue);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(14rem, 0.65fr) minmax(0, 1.35fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: start;
}

.section-intro {
  max-width: 670px;
  margin: 0;
  color: var(--muted);
  font-size: 1.2rem;
  font-weight: 300;
}

.section-intro p {
  margin: 0;
}

.section-intro p + p {
  margin-top: 1.3rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 4rem;
  border-top: 1px solid var(--line);
}

.feature {
  min-height: 16rem;
  padding: 2rem 2rem 2rem 0;
  border-bottom: 1px solid var(--line);
}

.feature + .feature {
  padding-left: 2rem;
  border-left: 1px solid var(--line);
}

.feature-number {
  display: block;
  margin-bottom: 3rem;
  color: var(--violet);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.feature p,
.step p,
.note p {
  margin: 0;
  color: var(--muted);
}

.context-path {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 4rem;
  border-top: 1px solid var(--line);
}

.context-step {
  min-height: 16rem;
  padding: 2rem 2rem 2rem 0;
  border-bottom: 1px solid var(--line);
}

.context-step + .context-step {
  padding-left: 2rem;
  border-left: 1px solid var(--line);
}

.context-step > span {
  display: block;
  margin-bottom: 3rem;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.09em;
}

.context-step p {
  margin: 0;
  color: var(--muted);
}

.pilot-note {
  display: grid;
  grid-template-columns: 12rem minmax(0, 1fr);
  gap: 2rem;
  margin-top: 2rem;
  padding: 1.5rem 1.7rem;
  border-left: 4px solid var(--cyan);
  background: var(--soft);
}

.pilot-note p {
  margin: 0;
  color: var(--muted);
}

.band {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: var(--deep);
}

.band .shell {
  position: relative;
  padding-top: 5.5rem;
  padding-bottom: 5.5rem;
}

.band h2,
.band h3,
.band p,
.band a {
  color: #fff;
}

.band::after {
  content: "";
  position: absolute;
  right: -7rem;
  top: -10rem;
  width: 28rem;
  height: 28rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  box-shadow: 0 0 0 5rem rgba(140, 92, 255, 0.08), 0 0 0 10rem rgba(0, 181, 255, 0.05);
}

.band-copy {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.band-copy p {
  max-width: 670px;
  margin: 1.5rem 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.17rem;
}

.band-copy .band-emphasis {
  color: #fff;
  font-weight: 650;
}

.status {
  display: inline-flex;
  gap: 0.55rem;
  align-items: center;
  color: var(--blue);
  font-size: 0.92rem;
  font-weight: 650;
}

.status::before {
  content: "";
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 0.3rem rgba(0, 181, 255, 0.12);
}

.steps {
  margin-top: 4rem;
  counter-reset: steps;
  border-top: 1px solid var(--line);
}

.step {
  display: grid;
  grid-template-columns: 3rem minmax(12rem, 0.65fr) minmax(0, 1.35fr);
  gap: 1.5rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
  counter-increment: steps;
}

.step::before {
  content: "0" counter(steps);
  color: var(--violet);
  font-size: 0.82rem;
  font-weight: 700;
}

.step h3 {
  margin: 0;
}

code {
  padding: 0.08rem 0.25rem;
  color: var(--purple);
  background: var(--soft);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.88em;
}

pre {
  max-width: 100%;
  margin: 2rem 0 0;
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  border-left: 4px solid var(--cyan);
  color: #fff;
  background: var(--deep);
}

pre code {
  padding: 0;
  color: inherit;
  background: transparent;
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-top: 3.5rem;
}

.scope-card,
.note {
  padding: 2rem;
  border: 1px solid var(--line);
  background: #fff;
}

.scope-card:first-child {
  border-top: 4px solid var(--blue);
}

.scope-card:last-child {
  border-top: 4px solid var(--violet);
}

.scope-label {
  display: block;
  margin-bottom: 1.4rem;
  color: var(--blue);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scope-card p {
  margin: 0;
  color: var(--muted);
}

.note {
  margin-top: 2rem;
  background: var(--soft);
}

.compact-list {
  display: grid;
  gap: 0;
  margin: 3.5rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.compact-list li {
  display: grid;
  grid-template-columns: minmax(10rem, 0.35fr) minmax(0, 1fr);
  gap: 2rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--line);
}

.compact-list strong {
  color: var(--deep);
  font-weight: 650;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.5rem 0 3.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 1050px) {
  .feature-grid,
  .context-path {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature:nth-child(3),
  .context-step:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 850px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 4.5rem 0;
  }

  .network {
    width: min(72vw, 320px);
    justify-self: start;
  }

  html[data-site="collaborate"] .network {
    width: min(86vw, 420px);
  }

  .section-heading,
  .step {
    grid-template-columns: 1fr;
  }

  .step {
    gap: 0.6rem;
  }

  .feature-grid,
  .context-path {
    grid-template-columns: 1fr;
  }

  .feature,
  .feature + .feature,
  .context-step,
  .context-step + .context-step {
    min-height: 0;
    padding: 2rem 0;
    border-left: 0;
  }

  .feature-number {
    margin-bottom: 1.5rem;
  }

  .context-step > span {
    margin-bottom: 1.5rem;
  }

  .pilot-note {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .scope-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .network {
    display: none;
  }
}

@media (max-width: 560px) {
  .shell {
    width: min(100% - 2rem, 1180px);
  }

  .site-header {
    min-height: 4.8rem;
  }

  .site-nav a:not(.nav-primary) {
    display: none;
  }

  .tool-strip {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .hero {
    padding: 3.7rem 0;
  }

  h1 {
    font-size: clamp(3.2rem, 17vw, 5.2rem);
  }

  .section {
    padding: 4.5rem 0;
  }

  .compact-list li {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .site-footer {
    flex-direction: column;
  }
}

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