:root {
  color-scheme: dark;
  --bg: #111111;
  --panel: #171717;
  --panel-soft: #1d1d1d;
  --ink: #f8f8f8;
  --muted: rgba(248, 248, 248, 0.68);
  --quiet: rgba(248, 248, 248, 0.48);
  --line: rgba(255, 255, 255, 0.12);
  --blue: #77a5d5;
  --blue-soft: rgba(119, 165, 213, 0.18);
  --gold: #d0a052;
  --shell: min(1180px, calc(100% - 40px));
  font-family: "Montserrat", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url("assets/fonts/montserrat-latin-var.woff2") format("woff2");
}

@font-face {
  font-family: "Montserrat";
  font-style: italic;
  font-weight: 300 650;
  font-display: swap;
  src: url("assets/fonts/montserrat-latin-italic-var.woff2") format("woff2");
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: "Montserrat", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

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

.site-header,
.hero,
.relief-section,
.operator-section,
.examples-section,
.ai-section,
.why-section,
.site-footer {
  width: var(--shell);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0;
  background: rgba(17, 17, 17, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand,
.site-header nav,
.site-footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 14px;
  font-size: 14px;
  font-weight: 760;
}

.brand-mark {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.site-header nav {
  gap: 24px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.site-header a:hover,
.site-footer a:hover {
  color: var(--blue);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(360px, 0.56fr);
  gap: clamp(34px, 7vw, 96px);
  min-height: min(780px, calc(100vh - 86px));
  align-items: center;
  padding: clamp(72px, 10vw, 136px) 0 clamp(70px, 8vw, 110px);
}

.eyebrow,
.case-kicker {
  margin: 0 0 18px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 780;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 960px;
  margin-bottom: 34px;
  font-size: clamp(52px, 7vw, 104px);
  line-height: 0.96;
  letter-spacing: 0;
}

.artifact-title {
  font-size: clamp(40px, 4.25vw, 62px);
  line-height: 1.02;
  overflow-wrap: normal;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(36px, 5.4vw, 72px);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 16px;
  font-size: clamp(25px, 3.1vw, 42px);
  line-height: 1.08;
  letter-spacing: 0;
}

.lede,
.operator-copy p,
.case-card p,
.ai-copy p,
.why-copy p,
.relief-grid p,
.hero-panel p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.62;
}

.lede {
  max-width: 820px;
  font-size: clamp(21px, 2.3vw, 30px);
}

.hero-panel {
  display: grid;
  gap: 1px;
  align-self: center;
  background: var(--line);
  border: 1px solid var(--line);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.32);
}

.loop-step {
  padding: clamp(24px, 3.4vw, 38px);
  background: var(--panel);
}

.loop-step span {
  display: block;
  margin-bottom: 14px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.loop-step strong {
  display: block;
  margin-bottom: 10px;
  font-size: 24px;
}

.loop-step p {
  margin-bottom: 0;
  font-size: 16px;
}

.relief-section,
.operator-section,
.examples-section,
.ai-section,
.why-section {
  padding: clamp(78px, 10vw, 136px) 0;
  border-top: 1px solid var(--line);
}

.section-kicker {
  max-width: 980px;
  margin-bottom: 42px;
}

.relief-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
}

.relief-grid article {
  min-height: 260px;
  padding: clamp(22px, 3vw, 32px);
  background: var(--panel);
  border-right: 1px solid var(--line);
}

.relief-grid article:last-child {
  border-right: 0;
}

.relief-grid h3 {
  color: var(--blue);
  font-size: 24px;
}

.relief-grid p {
  margin-bottom: 0;
  color: var(--quiet);
  font-size: 15px;
}

.operator-section,
.ai-section {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(430px, 0.82fr);
  gap: clamp(34px, 6vw, 86px);
}

.operator-copy,
.ai-copy {
  padding: clamp(28px, 4vw, 46px);
  background: var(--panel);
  border: 1px solid var(--line);
}

.operator-copy p:last-child,
.ai-copy p:last-child {
  margin-bottom: 0;
}

.quote {
  margin-top: 34px;
  padding-top: 28px;
  color: var(--ink) !important;
  border-top: 1px solid var(--line);
  font-size: 21px !important;
  font-style: italic;
}

.quote span {
  display: block;
  margin-top: 14px;
  color: var(--quiet);
  font-size: 13px;
  font-style: normal;
}

.case-card {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(390px, 0.76fr);
  gap: 0;
  margin-bottom: 30px;
  border: 1px solid var(--line);
}

.case-card-flip {
  grid-template-columns: minmax(390px, 0.76fr) minmax(0, 0.92fr);
}

.case-card-flip figure {
  order: 2;
}

.case-card figure {
  display: grid;
  align-content: center;
  gap: 18px;
  margin: 0;
  padding: clamp(22px, 3vw, 34px);
  background: #0c0c0c;
  border-right: 1px solid var(--line);
}

.case-card-flip figure {
  border-right: 0;
  border-left: 1px solid var(--line);
}

.case-card img {
  width: 100%;
  max-height: 520px;
  object-fit: contain;
  background: #070707;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.case-card figcaption {
  color: var(--quiet);
  font-size: 13px;
  line-height: 1.5;
}

.case-card > div {
  display: flex;
  min-height: 500px;
  flex-direction: column;
  justify-content: center;
  padding: clamp(34px, 5vw, 62px);
  background: var(--panel);
}

.case-card p:last-child {
  margin-bottom: 0;
}

.case-kicker {
  color: var(--blue);
}

.why-section {
  display: block;
}

.why-copy {
  max-width: 920px;
}

.closing {
  margin-top: 36px;
  padding-top: 30px;
  color: var(--ink) !important;
  border-top: 1px solid var(--line);
  font-size: clamp(22px, 2.5vw, 32px) !important;
  line-height: 1.42 !important;
}

.site-footer {
  justify-content: flex-start;
  gap: 20px;
  padding: 34px 0 48px;
  color: var(--quiet);
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.site-footer span {
  color: var(--ink);
  font-weight: 750;
}

@media (max-width: 980px) {
  .hero,
  .operator-section,
  .ai-section,
  .case-card,
  .case-card-flip {
    grid-template-columns: 1fr;
  }

  .case-card-flip figure {
    order: 0;
    border-left: 0;
  }

  .case-card figure {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .case-card > div {
    min-height: auto;
  }

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

  .relief-grid article:nth-child(2) {
    border-right: 0;
  }

  .relief-grid article:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 680px) {
  :root {
    --shell: calc(100% - 28px);
  }

  .site-header,
  .hero,
  .relief-section,
  .operator-section,
  .examples-section,
  .ai-section,
  .why-section,
  .site-footer {
    width: auto;
    max-width: calc(100vw - 28px);
    margin-right: 14px;
    margin-left: 14px;
  }

  .hero-copy,
  .hero-panel,
  .loop-step {
    min-width: 0;
    max-width: 100%;
  }

  .hero {
    display: block;
  }

  .hero-copy,
  .hero-panel,
  .lede {
    width: min(100%, 362px);
    max-width: 362px;
  }

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

  .site-header nav {
    flex-wrap: wrap;
    gap: 12px;
  }

  h1 {
    max-width: 9.5ch;
    font-size: clamp(36px, 11vw, 46px);
    line-height: 1;
    overflow-wrap: break-word;
  }

  .artifact-title {
    max-width: 100%;
    font-size: clamp(32px, 9vw, 40px);
  }

  h2 {
    font-size: clamp(34px, 10vw, 48px);
  }

  .lede {
    max-width: 100%;
    font-size: 20px;
    overflow-wrap: break-word;
  }

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

  .relief-grid article,
  .relief-grid article:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .relief-grid article:last-child {
    border-bottom: 0;
  }

  .case-card img {
    max-height: none;
  }

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