:root {
  --bg: #f3f0e8;
  --surface: #faf9f5;
  --paper: #faf8f1;
  --ink: #17251e;
  --ink-soft: #526058;
  --ink-faint: #7d857f;
  --line: #d8d5cc;
  --line-strong: #bbbdb5;
  --accent: #bb4d2e;
  --accent-soft: #f1dfd8;
  --forest: #173f32;
  --ok: #2e7451;
  --serif: Georgia, "Times New Roman", Times, serif;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(23, 37, 30, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(23, 37, 30, 0.03) 1px, transparent 1px),
    var(--bg);
  background-size: 42px 42px, 42px 42px, auto;
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

.site-header,
main,
.site-footer {
  width: min(1180px, calc(100vw - 48px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 600;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 29px;
  height: 29px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  font-size: 16px;
  font-style: italic;
}

nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--ink-soft);
  font-size: 13px;
}

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

.nav-cta {
  border-left: 1px solid var(--line-strong);
  padding-left: 28px;
  color: var(--ink);
  font-weight: 700;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(390px, 0.92fr);
  align-items: center;
  gap: clamp(44px, 7vw, 96px);
  min-height: 690px;
  padding: 64px 0 86px;
}

.eyebrow,
.section-kicker {
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 28px;
}

.eyebrow span {
  width: 26px;
  height: 1px;
  background: var(--accent);
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  max-width: 690px;
  font-family: var(--serif);
  font-size: clamp(54px, 5.8vw, 80px);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 600px;
  margin-top: 29px;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.65;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--forest);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
}

.button:hover {
  text-decoration: none;
  filter: brightness(1.04);
}

.button.primary {
  background: var(--forest);
  color: #fff;
}

.button.secondary {
  background: rgba(250, 249, 245, 0.62);
  color: var(--ink);
  border-color: var(--line-strong);
}

.artifact-scene {
  position: relative;
  padding: 20px 22px 28px 0;
  transform: rotate(1.2deg);
}

.artifact-shadow {
  position: absolute;
  inset: 38px 4px 8px 24px;
  border: 1px solid #c9c1b4;
  background: #e3ddd1;
  transform: rotate(3deg);
}

.artifact-card {
  position: relative;
  z-index: 1;
  min-height: 455px;
  padding: 28px 31px 24px;
  border: 1px solid #cfc8ba;
  background-color: var(--paper);
  background-image: linear-gradient(rgba(36, 48, 40, 0.028) 1px, transparent 1px);
  background-size: 100% 27px;
  box-shadow: 0 20px 50px rgba(42, 43, 34, 0.13);
  color: #203128;
}

.artifact-topline {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.asof {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.asof i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ok);
}

.artifact-question {
  margin-top: 50px;
  color: #677069;
  font: 700 9px/1.4 var(--mono);
  letter-spacing: 0.12em;
}

.artifact-answer {
  margin: 10px 0 31px;
  font-family: var(--serif);
  font-size: 24px;
  line-height: 1.35;
}

.evidence-block {
  border: 1px solid #c8c9c1;
  padding: 15px 17px;
  background: rgba(255, 255, 255, 0.35);
}

.evidence-label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font: 700 8px/1 var(--mono);
  letter-spacing: 0.1em;
}

.evidence-label strong {
  color: var(--ok);
}

.evidence-block p {
  margin: 18px 0 13px;
  padding-left: 12px;
  border-left: 2px solid #4b8667;
  font: 12px/1.65 var(--mono);
}

.source-line {
  color: #737a75;
  font: 8px/1.4 var(--mono);
  letter-spacing: 0.08em;
}

.artifact-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 27px;
  padding-top: 11px;
  border-top: 1px solid #d9d5ca;
  font: 8px/1 var(--mono);
  letter-spacing: 0.08em;
}

.artifact-stamp {
  position: absolute;
  right: -5px;
  bottom: 0;
  z-index: 2;
  display: grid;
  align-content: center;
  width: 112px;
  height: 70px;
  border: 2px solid rgba(187, 77, 46, 0.74);
  color: rgba(187, 77, 46, 0.82);
  font: 700 14px/1.1 var(--mono);
  letter-spacing: 0.08em;
  text-align: center;
  transform: rotate(-6deg);
}

.artifact-stamp span {
  margin-top: 5px;
  font-size: 6px;
}

.method,
.use-cases,
.closing {
  border-top: 1px solid var(--line-strong);
}

.method {
  padding: 90px 0 94px;
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr minmax(260px, 400px);
  gap: 80px;
  align-items: end;
}

.section-heading h2,
.use-cases h2 {
  max-width: 720px;
  margin-top: 7px;
  font-family: var(--serif);
  font-size: 48px;
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: 0;
}

.section-heading > p:last-child {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.7;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 60px;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.method-grid article {
  min-height: 220px;
  padding: 24px;
  border-left: 1px solid var(--line);
}

.method-grid article:first-child {
  border-left: 0;
}

.method-grid span {
  color: var(--ink-faint);
  font: 10px/1 var(--mono);
}

.method-grid h3 {
  margin-top: 72px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 400;
}

.method-grid p {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.55;
}

.use-cases {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) 1.1fr;
  gap: 70px;
  padding: 82px 0;
}

.use-cases h2 {
  font-size: 39px;
}

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

.use-cases li {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 22px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.use-cases strong {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 400;
}

.use-cases span {
  color: var(--ink-soft);
  font-size: 14px;
}

.closing {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 44px 0;
}

.closing p {
  font-family: var(--serif);
  font-size: 26px;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: center;
  padding: 36px 0 42px;
  border-top: 1px solid #274b3e;
  color: var(--ink-soft);
  font-size: 12px;
}

.site-footer a {
  color: var(--ink);
  font: 18px/1 var(--serif);
  letter-spacing: 0.08em;
}

.site-footer p {
  text-align: center;
  font-family: var(--serif);
  font-style: italic;
}

.site-footer span {
  text-align: right;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

@media (max-width: 900px) {
  .hero,
  .section-heading,
  .use-cases {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .artifact-scene {
    width: min(520px, 95%);
    justify-self: center;
  }

  .section-heading,
  .use-cases {
    gap: 28px;
  }

  .method-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .method-grid article:nth-child(3) {
    border-left: 0;
  }

  .method-grid article:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 620px) {
  .site-header,
  main,
  .site-footer {
    width: calc(100vw - 32px);
  }

  .site-header {
    align-items: flex-start;
  }

  nav {
    gap: 16px;
  }

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

  .nav-cta {
    border-left: 0;
    padding-left: 0;
  }

  .hero {
    gap: 55px;
    padding: 56px 0 70px;
  }

  h1 {
    font-size: clamp(48px, 15vw, 64px);
  }

  .hero-lede {
    font-size: 16px;
  }

  .artifact-scene {
    width: 100%;
    padding-right: 10px;
  }

  .artifact-card {
    min-height: 430px;
    padding: 24px 21px;
  }

  .artifact-answer {
    font-size: 21px;
  }

  .artifact-stamp {
    right: -4px;
  }

  .method {
    padding: 72px 0;
  }

  .section-heading h2,
  .use-cases h2 {
    font-size: 38px;
  }

  .method-grid {
    grid-template-columns: 1fr;
    margin-top: 42px;
  }

  .method-grid article,
  .method-grid article:nth-child(3) {
    min-height: 188px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .method-grid article:first-child {
    border-top: 0;
  }

  .method-grid h3 {
    margin-top: 50px;
  }

  .use-cases {
    padding: 68px 0;
  }

  .use-cases li {
    grid-template-columns: 1fr;
    gap: 5px;
  }

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

  .site-footer {
    grid-template-columns: 1fr;
    gap: 12px;
    text-align: center;
  }

  .site-footer p,
  .site-footer span {
    text-align: center;
  }
}