:root {
  --black: #000;
  --white: #fff;
  --canvas: #f5f5f7;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --line: rgba(0, 0, 0, 0.09);
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }
.shell { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.narrow { max-width: 900px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.78);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.06);
}
.nav {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand img { display: block; width: 128px; height: auto; }
.nav-links { display: flex; gap: 28px; }
.nav-links a {
  font-size: 13px;
  text-decoration: none;
  color: #3a3a3c;
  transition: color .2s ease;
}
.nav-links a:hover { color: #000; }

.hero {
  min-height: 760px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 100px 0 120px;
}
.eyebrow {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--muted);
}
.hero h1 {
  margin: 0;
  max-width: 900px;
  font-size: clamp(64px, 10vw, 128px);
  line-height: .86;
  letter-spacing: -.07em;
  font-weight: 700;
}
.hero-copy {
  max-width: 720px;
  margin: 38px auto 22px;
  font-size: clamp(22px, 2.6vw, 32px);
  line-height: 1.25;
  letter-spacing: -.035em;
  color: var(--muted);
}
.text-link {
  font-size: 18px;
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.text-link:hover { border-color: currentColor; }

.dark-section {
  background: #0b0b0b;
  color: #fff;
  padding: 150px 0;
}
.eyebrow.light { color: #a1a1a6; }
.dark-section h2 {
  margin: 0;
  font-size: clamp(42px, 6vw, 78px);
  line-height: .98;
  letter-spacing: -.055em;
  font-weight: 650;
}

.approach { padding: 140px 0 120px; }
.section-intro h2 {
  margin: 0 0 70px;
  font-size: clamp(52px, 7vw, 88px);
  line-height: .92;
  letter-spacing: -.06em;
}
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.card {
  min-height: 330px;
  padding: 32px;
  border-radius: 28px;
  background: var(--canvas);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.card-number {
  margin-bottom: auto;
  font-size: 13px;
  color: #86868b;
}
.card h3 {
  margin: 0 0 12px;
  font-size: 28px;
  letter-spacing: -.035em;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.45;
}

.contact { padding: 10px 0 110px; }
.contact-panel {
  min-height: 460px;
  border-radius: 32px;
  background: var(--canvas);
  padding: 52px;
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 44px;
  align-items: center;
}
.mark { width: 110px; height: auto; }
.contact h2 {
  margin: 0 0 18px;
  font-size: clamp(44px, 6vw, 72px);
  line-height: .95;
  letter-spacing: -.055em;
}
.email {
  font-size: clamp(20px, 2.4vw, 30px);
  color: var(--muted);
  text-decoration: none;
}
.email:hover { color: #000; }

.footer {
  min-height: 120px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.footer img { width: 112px; }
.footer p { margin: 0; font-size: 12px; color: #86868b; }

@media (max-width: 760px) {
  .shell { width: min(calc(100% - 32px), var(--max)); }
  .nav { height: 54px; }
  .brand img { width: 112px; }
  .nav-links { gap: 18px; }
  .hero { min-height: 660px; padding: 80px 0 100px; }
  .hero h1 { font-size: clamp(56px, 18vw, 84px); }
  .hero-copy { font-size: 22px; margin-top: 30px; }
  .dark-section { padding: 110px 0; }
  .approach { padding: 100px 0 90px; }
  .cards { grid-template-columns: 1fr; }
  .card { min-height: 280px; }
  .contact-panel { min-height: 400px; grid-template-columns: 1fr; padding: 36px; }
  .mark { width: 76px; }
  .footer { padding: 30px 0; align-items: flex-start; flex-direction: column; }
}

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