:root {
  --paper: #f7f4ee;
  --paper-light: #fbf9f5;
  --ink: #152638;
  --ink-soft: #56606a;
  --accent: #925c47;
  --accent-deep: #744737;
  --accent-wash: #eadfd6;
  --rule: #c9c3bb;
  --white: #ffffff;
  --max: 1280px;
  --gutter: clamp(1.25rem, 4vw, 4.5rem);
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  background: var(--ink);
  color: var(--white);
  transform: translateY(-150%);
}

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

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.site-header,
main > section,
footer {
  width: min(100%, var(--max));
  margin-inline: auto;
}

.site-header {
  min-height: 5.25rem;
  padding: 0 var(--gutter);
  border-bottom: 1px solid var(--ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  text-decoration: none;
}

.wordmark-mark {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: var(--paper-light);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.5rem);
}

nav a {
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
  text-transform: uppercase;
}

nav a:hover {
  color: var(--accent-deep);
}

.hero {
  min-height: min(50rem, calc(100vh - 5.25rem));
  padding: clamp(3rem, 6vw, 5.5rem) var(--gutter) 4rem;
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(18rem, 0.75fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: end;
  background-image:
    linear-gradient(to right, transparent calc(100% - 1px), rgba(21, 38, 56, 0.08) 1px),
    linear-gradient(to bottom, transparent calc(100% - 1px), rgba(21, 38, 56, 0.08) 1px);
  background-size: 8rem 8rem;
}

.eyebrow,
.note-index,
.section-label,
.status,
.step-number,
.future-kicker,
.contact-label {
  margin: 0;
  color: var(--accent-deep);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1,
h2 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.04;
}

h1 {
  max-width: 15ch;
  margin: 1.4rem 0 1.75rem;
  font-size: clamp(3.4rem, 6vw, 5.4rem);
}

.hero-intro {
  max-width: 43rem;
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(1.08rem, 1.7vw, 1.35rem);
  line-height: 1.55;
}

.actions {
  margin-top: 2.4rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 3.25rem;
  font-size: 0.88rem;
  font-weight: 750;
  text-decoration: none;
}

.button-primary {
  padding: 0.85rem 1.15rem;
  background: var(--ink);
  color: var(--white);
}

.button-primary:hover {
  background: var(--accent-deep);
}

.button-text {
  border-bottom: 1px solid currentColor;
}

.hero-note {
  padding: 1.5rem 0 0;
  border-top: 4px solid var(--accent);
}

.hero-quote {
  margin: 1.25rem 0 2rem;
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3vw, 2.45rem);
  line-height: 1.18;
}

.signal-list {
  margin: 0;
}

.signal-list div {
  padding: 0.75rem 0;
  border-top: 1px solid var(--rule);
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 1rem;
}

.signal-list dt {
  color: var(--accent-deep);
  font-weight: 800;
}

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

.ruled-section {
  padding: clamp(4.5rem, 9vw, 8rem) var(--gutter);
  border-top: 1px solid var(--ink);
  display: grid;
  grid-template-columns: minmax(7rem, 0.28fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
}

.section-label {
  display: flex;
  gap: 0.8rem;
  align-items: baseline;
}

.section-label span {
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.section-label p {
  margin: 0;
}

.section-body h2 {
  margin: 0;
  font-size: clamp(2.5rem, 5vw, 5.25rem);
}

.split-copy {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(16rem, 0.75fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}

.prose {
  border-top: 3px solid var(--ink);
  color: var(--ink-soft);
}

.prose p {
  margin: 0;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--rule);
}

.product {
  background: var(--paper-light);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(17rem, 0.7fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: end;
}

.section-heading > p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.status {
  margin-bottom: 1.2rem;
}

.status-dot {
  width: 0.55rem;
  height: 0.55rem;
  margin-right: 0.5rem;
  display: inline-block;
  border-radius: 50%;
  background: var(--accent);
}

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

.capability-list article {
  min-height: 15rem;
  padding: 1.5rem 1.6rem 1.8rem 0;
  border-bottom: 1px solid var(--ink);
}

.capability-list article + article {
  padding-left: 1.6rem;
  border-left: 1px solid var(--ink);
}

.capability-number {
  margin: 0 0 3.5rem;
  color: var(--accent-deep);
  font-size: 0.78rem;
  font-weight: 800;
}

.capability-list h3,
.future-grid h3,
.demo-copy h3 {
  margin: 0 0 0.65rem;
  font-size: 1.18rem;
  line-height: 1.3;
}

.capability-list article > p:last-child,
.future-grid p,
.demo-copy > p:last-child {
  margin: 0;
  color: var(--ink-soft);
}

.boundary-note {
  margin-top: 2rem;
  padding: 1.25rem 0;
  border-top: 3px solid var(--accent);
  border-bottom: 1px solid var(--rule);
  display: grid;
  grid-template-columns: minmax(10rem, 0.35fr) minmax(0, 1fr);
  gap: 2rem;
}

.boundary-note strong {
  color: var(--accent-deep);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.boundary-note p {
  margin: 0;
  color: var(--ink-soft);
}

.demo-heading {
  margin-bottom: clamp(3rem, 7vw, 6rem);
}

.demo-sequence {
  margin: 0;
  padding: 0;
  list-style: none;
}

.demo-sequence > li {
  padding: clamp(2.5rem, 5vw, 4.5rem) 0;
  border-top: 1px solid var(--ink);
  display: grid;
  grid-template-columns: minmax(13rem, 0.42fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.step-number {
  margin-bottom: 1.2rem;
}

figure {
  margin: 0;
  background: var(--ink);
}

figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 36 / 25;
  object-fit: cover;
  object-position: top left;
  background: #e6e1d9;
}

figcaption {
  padding: 0.65rem 0.85rem;
  color: #dce3e7;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

.approach {
  background: var(--ink);
  color: var(--paper-light);
  border-top-color: var(--ink);
}

.approach .section-label span,
.approach .section-label p,
.future-kicker {
  color: #d3c1b3;
}

.future-banner {
  max-width: 62rem;
}

.future-banner h2 {
  margin-top: 1.1rem;
}

.future-grid {
  margin-top: clamp(3rem, 7vw, 6rem);
  border-top: 1px solid #637387;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.future-grid article {
  padding: 1.6rem 1.7rem 2rem 0;
}

.future-grid article + article {
  padding-left: 1.7rem;
  border-left: 1px solid #637387;
}

.future-grid p,
.human-note {
  color: #bec9d3;
}

.human-note {
  max-width: 54rem;
  margin: 2rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid #637387;
  font-size: 0.9rem;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(16rem, 0.75fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: end;
}

.about-grid > div:first-child > p {
  max-width: 48rem;
  margin: 1.6rem 0 0;
  color: var(--ink-soft);
  font-size: 1.1rem;
}

.contact-block {
  padding: 1.5rem 0;
  border-top: 4px solid var(--accent);
  border-bottom: 1px solid var(--ink);
}

.contact-block a {
  display: inline-block;
  margin-top: 1.2rem;
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.5vw, 2.1rem);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
}

footer {
  padding: 2.4rem var(--gutter) 3rem;
  border-top: 1px solid var(--ink);
  display: grid;
  grid-template-columns: 1fr 1.5fr auto;
  gap: 2rem;
  align-items: center;
}

footer p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.75rem;
}

footer p:last-child {
  text-align: right;
}

.footer-wordmark {
  font-size: 0.82rem;
}

.not-found {
  min-height: 100vh;
  padding: clamp(2rem, 7vw, 6rem) var(--gutter);
  display: grid;
  align-content: center;
}

.not-found p:first-child {
  color: var(--accent-deep);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.not-found h1 {
  max-width: 12ch;
  margin: 1rem 0;
}

.not-found > p {
  max-width: 36rem;
  color: var(--ink-soft);
}

.not-found .button {
  width: fit-content;
  margin-top: 1.5rem;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-note {
    max-width: 36rem;
  }

  .ruled-section {
    grid-template-columns: 1fr;
  }

  .split-copy,
  .section-heading,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .capability-list,
  .future-grid {
    grid-template-columns: 1fr;
  }

  .capability-list article,
  .capability-list article + article,
  .future-grid article,
  .future-grid article + article {
    min-height: 0;
    padding: 1.5rem 0;
    border-left: 0;
    border-bottom: 1px solid var(--rule);
  }

  .future-grid article,
  .future-grid article + article {
    border-bottom-color: #637387;
  }

  .capability-number {
    margin-bottom: 1rem;
  }

  .demo-sequence > li {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  html {
    scroll-padding-top: 1rem;
  }

  .site-header {
    min-height: 0;
    padding-top: 1.1rem;
    padding-bottom: 1rem;
    align-items: flex-start;
    flex-direction: column;
    gap: 1rem;
  }

  nav {
    width: 100%;
    padding-top: 0.75rem;
    border-top: 1px solid var(--rule);
    justify-content: space-between;
    gap: 0.6rem;
  }

  nav a {
    font-size: 0.64rem;
  }

  .hero {
    padding-top: 4.5rem;
    background-size: 5rem 5rem;
  }

  h1 {
    font-size: clamp(3rem, 14vw, 4rem);
  }

  .actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .button-text {
    padding: 0.4rem 0;
  }

  .section-label {
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--rule);
  }

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

  footer {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  footer p:last-child {
    text-align: left;
  }
}

@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;
  }
}