@font-face {
  font-family: "Space Grotesk";
  src: url("/assets/fonts/space-grotesk-variable.woff2") format("woff2");
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("/assets/fonts/inter-variable.woff2") format("woff2");
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
}

:root {
  color-scheme: light;
  --ink: #101010;
  --anthracite: #2b2b2b;
  --muted: #6b6b6b;
  --paper: #f5f5f5;
  --line: #d9d9d9;
  --white: #fff;
  font-family: "Inter", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-size: 16px; line-height: 1.6; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-underline-offset: 5px; }
p, h1, h2, h3 { margin: 0; }
h1, h2, h3 { font-family: "Space Grotesk", Arial, sans-serif; }
h1, h2 { font-weight: 700; letter-spacing: -0.045em; }
h1 { font-size: clamp(40px, 4.7vw, 64px); line-height: 1.08; max-width: 620px; }
h2 { font-size: clamp(32px, 3.4vw, 44px); line-height: 1.15; }
h3 { font-size: 24px; font-weight: 600; line-height: 1.25; letter-spacing: -0.025em; }
section[id], figure[id] { scroll-margin-top: 32px; }
:focus-visible { outline: 2px solid currentColor; outline-offset: 6px; }
main:focus { outline: none; }
.container { width: min(1200px, calc(100% - 96px)); margin-inline: auto; }
.eyebrow { font-size: 14px; font-weight: 500; letter-spacing: 0.035em; line-height: 1.5; }
.skip-link { position: fixed; z-index: 5; top: 16px; left: 16px; padding: 12px 20px; background: var(--white); color: var(--ink); transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }
.site-header { display: flex; justify-content: space-between; align-items: center; gap: 32px; padding-block: 32px; border-bottom: 1px solid var(--line); }
.brand { display: block; flex-shrink: 0; padding: 8px; margin: -8px; }
.brand img, .footer-brand { width: 244px; }
.main-nav { display: flex; gap: 32px; }
.main-nav a { display: inline-flex; align-items: center; min-height: 44px; text-decoration: none; font-size: 14px; font-weight: 500; }
.main-nav a:hover { text-decoration: underline; }
.hero { display: grid; grid-template-columns: 1.25fr 1fr; gap: 64px; align-items: center; padding-block: 88px 96px; }
.hero-copy { min-width: 0; }
.hero .eyebrow { margin-bottom: 24px; color: var(--muted); }
.hero-description { max-width: 540px; color: var(--muted); font-size: 18px; line-height: 1.65; margin-top: 28px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 40px; padding: 16px 24px; margin-top: 32px; color: var(--white); background: var(--ink); text-decoration: none; font-size: 14px; font-weight: 600; }
.button span { font-size: 20px; line-height: 1; }
.button:hover { background: var(--anthracite); }
.brand-panel { position: relative; overflow: hidden; isolation: isolate; aspect-ratio: 1 / 1.08; display: grid; place-items: center; color: var(--white); background-color: var(--ink); background-image: linear-gradient(#ffffff09 1px, transparent 1px), linear-gradient(90deg, #ffffff09 1px, transparent 1px); background-size: 48px 48px; }
.brand-panel::before { content: ""; position: absolute; z-index: -1; left: 67%; top: -35%; width: 1px; height: 170%; background: #ffffff30; transform: rotate(33deg); }
.hero-monogram { width: 56%; }
.panel-label, .panel-caption { position: absolute; left: 32px; right: 32px; font-size: 11px; letter-spacing: 0.06em; color: var(--line); }
.panel-label { top: 28px; }
.panel-caption { bottom: 28px; font-size: 12px; letter-spacing: 0; }
.section-pad { padding-block: 96px; }
.project { background: var(--paper); }
.section-heading { display: grid; grid-template-columns: 1fr 2fr; gap: 64px; }
.section-index { color: var(--muted); padding-top: 8px; }
.section-index span { margin-right: 12px; }
.section-intro { max-width: 670px; margin-top: 24px; color: var(--muted); font-size: 18px; }
.product-preview { margin: 48px 0 0; }
.product-preview > img { width: 100%; border: 1px solid var(--line); }
.product-preview figcaption { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-bottom: 20px; }
.preview-note { color: var(--muted); font-size: 14px; margin-top: 4px; }
.product-preview figcaption a { display: inline-flex; align-items: center; gap: 20px; min-height: 44px; flex-shrink: 0; font-size: 14px; }
.project-pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-top: 64px; }
.project-pillars article { border-top: 1px solid var(--line); padding-top: 24px; }
.item-index { display: block; color: var(--muted); font-size: 14px; margin-bottom: 24px; }
.project-pillars p, .method-steps p { margin-top: 16px; color: var(--muted); max-width: 330px; }
.innovation { background: var(--ink); color: var(--white); }
.innovation .section-index, .innovation .section-intro, .innovation .item-index { color: var(--line); }
.research-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 96px; margin-top: 64px; align-items: start; }
.research-flow { border: 1px solid #ffffff30; padding: 32px; }
.research-flow > div { display: grid; grid-template-columns: 32px 1fr; column-gap: 16px; }
.research-flow .item-index { margin: 4px 0 0; }
.research-flow h3 { font-size: 20px; }
.research-flow p { grid-column: 2; margin-top: 8px; color: var(--line); font-size: 14px; }
.flow-arrow { display: block; color: var(--line); margin: 16px 0 16px 48px; }
.research-copy > p { color: var(--line); margin-top: 20px; }
.future-note { padding-top: 24px; margin-top: 32px; border-top: 1px solid #ffffff30; }
.future-note .eyebrow { margin-bottom: 12px; }
.future-note > p:last-child { color: var(--line); font-size: 14px; }
.method-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin: 64px 0 0; padding: 0; list-style: none; }
.method-steps li { border-top: 1px solid var(--line); padding-top: 24px; }
.site-footer { background: var(--ink); color: var(--white); }
.footer-inner { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 48px; padding-block: 48px; }
.footer-inner p { color: var(--line); font-size: 14px; }
.footer-inner a { font-size: 14px; display: inline-flex; align-items: center; gap: 24px; min-height: 44px; }
.error-page { min-height: 100svh; display: flex; flex-direction: column; }
.error-main { flex: 1; padding-block: 96px; }
.error-main h1 { margin-block: 24px; }
.error-main p { max-width: 540px; color: var(--muted); }

@media (max-width: 1000px) {
  .container { width: calc(100% - 64px); }
  .hero { gap: 40px; padding-block: 64px; }
  .section-heading { grid-template-columns: 1fr 2.5fr; gap: 40px; }
  .research-detail { gap: 48px; }
  .footer-inner { grid-template-columns: 1fr auto; gap: 24px; }
  .footer-inner p { grid-column: 1; }
  .footer-inner a { grid-column: 2; grid-row: 1 / 3; }
}

@media (max-width: 760px) {
  .container { width: calc(100% - 48px); }
  .site-header { flex-direction: column; align-items: flex-start; gap: 16px; padding-block: 24px 16px; }
  .main-nav { gap: 28px; }
  .hero { grid-template-columns: 1fr; gap: 48px; padding-block: 48px 64px; }
  h1 { font-size: clamp(32px, 10vw, 40px); line-height: 1.1; max-width: 540px; }
  .hero-description, .section-intro { font-size: 16px; }
  .brand-panel { aspect-ratio: 1 / 0.85; }
  .hero-monogram { width: 48%; }
  .section-pad { padding-block: 64px; }
  .section-heading { grid-template-columns: 1fr; gap: 24px; }
  .section-index { padding-top: 0; }
  .project-pillars, .method-steps { grid-template-columns: 1fr; gap: 32px; margin-top: 40px; }
  .product-preview { margin-top: 32px; }
  .product-preview figcaption { flex-direction: column; align-items: flex-start; gap: 8px; margin-bottom: 16px; }
  .project-pillars article, .method-steps li { display: grid; grid-template-columns: 32px 1fr; column-gap: 16px; padding-top: 24px; }
  .project-pillars .item-index, .method-steps .item-index { margin: 4px 0 0; }
  .project-pillars p, .method-steps p { grid-column: 2; max-width: none; margin-top: 12px; }
  .research-detail { grid-template-columns: 1fr; gap: 40px; margin-top: 40px; }
  .research-flow { padding: 24px; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; padding-block: 40px; }
  .footer-inner a { grid-column: 1; grid-row: auto; justify-self: start; }
  .error-main { padding-block: 64px; }
}

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