:root {
  --white: #FFFFFF;
  --gray: #F5F5F7;
  --text: #1D1D1F;
  --text-2: #6E6E73;
  --text-3: #424245;
  --line: #D2D2D7;
  --accent: #2B5BFF;
  --font: -apple-system, BlinkMacSystemFont, "Inter", system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font); font-size: 17px; line-height: 1.5;
  color: var(--text); background: var(--white);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, p { margin: 0; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { width: min(1080px, calc(100% - 48px)); margin: 0 auto; }
.bg-white { background: var(--white); }
.bg-gray { background: var(--gray); }
.bg-black { background: #000; color: #F5F5F7; }
.center { text-align: center; }

/* Type */
.display { font-size: clamp(40px, 5.6vw, 80px); font-weight: 600; line-height: 1.05; letter-spacing: -0.02em; text-wrap: balance; }
.h2 { font-size: clamp(40px, 4.4vw, 64px); font-weight: 600; line-height: 1.05; letter-spacing: -0.02em; }
.lead { font-size: clamp(19px, 1.67vw, 24px); line-height: 1.45; color: var(--text-2); text-wrap: balance; }
.eyebrow { font-size: 19px; font-weight: 600; color: var(--accent); }
.muted { color: var(--text-2); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 48px; padding: 0 28px; border: 0; border-radius: 980px;
  background: var(--accent); color: #fff; font: inherit; font-size: 17px; font-weight: 500;
  cursor: pointer; transition: filter .2s ease, transform .2s ease;
}
.btn:hover { filter: brightness(1.12); text-decoration: none; }
.btn:active { transform: scale(.98); }
.btn-sm { height: 32px; padding: 0 16px; font-size: 14px; }
.text-link { display: inline-block; padding: 10px 0; font-size: 17px; }

/* Nav */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.8); border-bottom: 1px solid rgba(0,0,0,.06);
  -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px);
}
.site-nav { height: 52px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px; }
.logo { justify-self: start; font-size: 21px; font-weight: 600; letter-spacing: -0.02em; color: var(--text); }
.logo:hover { text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-link { font-size: 14px; color: var(--text); opacity: .8; transition: opacity .2s ease; }
.nav-link:hover { opacity: 1; text-decoration: none; }
.nav-link[aria-current="page"] { opacity: 1; font-weight: 600; }
.nav-right { justify-self: end; display: flex; align-items: center; gap: 6px; }
.menu-btn {
  display: none; width: 44px; height: 44px; margin-right: -12px; padding: 0;
  align-items: center; justify-content: center; border: 0; background: transparent; color: var(--text); cursor: pointer;
}
.menu-btn .i-close { display: none; }
.site-header.open .menu-btn .i-open { display: none; }
.site-header.open .menu-btn .i-close { display: block; }
.mobile-menu {
  display: none; position: absolute; top: 100%; left: 0; right: 0;
  background: rgba(255,255,255,.96); border-bottom: 1px solid rgba(0,0,0,.06); padding: 8px 0 32px;
  -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px);
}
.mobile-menu ul { list-style: none; margin: 0 auto; padding: 0; }
.mobile-menu a { display: block; padding: 10px 0; font-size: 28px; font-weight: 600; line-height: 1.2; letter-spacing: -0.02em; color: var(--text); }
.mobile-menu a:hover { text-decoration: none; opacity: .7; }
.mobile-menu a[aria-current="page"] { color: var(--text-2); }
.site-header.open .mobile-menu { display: block; }

/* Page hero (inner pages) */
.page-hero { padding: 136px 0 120px; text-align: center; }
.page-hero .wrap { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.page-hero .display { max-width: 900px; }
.page-hero .lead { margin-top: 8px; max-width: 760px; }

/* Home hero */
.hero { min-height: 848px; padding-top: 120px; display: flex; flex-direction: column; align-items: center; text-align: center; }
.hero-copy { margin-bottom: 72px; display: flex; flex-direction: column; align-items: center; gap: 24px; }
.hero-copy .display { max-width: 880px; }
.hero-copy .lead { max-width: 600px; line-height: 1.4; }
.hero-actions { margin-top: 16px; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 16px 32px; }
.horizon { position: relative; width: 100%; height: 360px; margin-top: auto; overflow: hidden; }
.horizon .bloom {
  position: absolute; left: 50%; top: 80px; width: 64%; height: 200px; transform: translateX(-50%);
  border-radius: 50%; background: radial-gradient(closest-side, rgba(43,91,255,.3), rgba(43,91,255,0)); filter: blur(24px);
}
.horizon .planet {
  position: absolute; left: 50%; top: 180px; width: 240%; aspect-ratio: 1 / 1; transform: translateX(-50%); border-radius: 50%;
  background: radial-gradient(42% 6% at 50% 0%, rgb(221,227,250) 0%, #F5F5F7 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.9), 0 -1px 0 rgba(43,91,255,.45), 0 -20px 60px rgba(43,91,255,.28), 0 -60px 160px rgba(43,91,255,.22);
}
.horizon .fade { position: absolute; left: 0; right: 0; bottom: 0; height: 72px; background: linear-gradient(to bottom, rgba(245,245,247,0), #F5F5F7); }

/* About block (home) */
.home-about { padding: 96px 0 160px; }
.home-about .wrap { display: flex; flex-direction: column; gap: 120px; }
.statement { margin: 0 auto; max-width: 920px; font-size: clamp(28px, 2.8vw, 40px); font-weight: 600; line-height: 1.2; letter-spacing: -0.015em; text-align: center; text-wrap: balance; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); gap: 32px; text-align: center; }
.stat { display: flex; flex-direction: column; gap: 4px; }
.stats.ruled .stat { border-top: 1px solid var(--line); padding-top: 24px; }
.stat-num { font-size: clamp(48px, 4.4vw, 64px); font-weight: 600; line-height: 1.1; letter-spacing: -0.02em; }
.stat-label { font-size: 17px; color: var(--text-2); }
.stats.big .stat-num { font-size: clamp(56px, 5.6vw, 80px); line-height: 1.05; }
.stats.big .stat-label { font-size: 19px; }

/* Sections */
.section { padding: 160px 0; }
.stack { display: flex; flex-direction: column; gap: 64px; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 24px; }
.card {
  background: var(--gray); border-radius: 20px; padding: 40px; min-height: 340px;
  display: flex; flex-direction: column; justify-content: space-between; gap: 48px;
}
.card h3 { font-size: 32px; font-weight: 600; line-height: 1.1; letter-spacing: -0.02em; }
.card p { margin-top: 12px; color: var(--text-2); }

/* Principles */
.principles-head { margin-bottom: 72px; color: #F5F5F7; }
.principles { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(400px, 100%), 1fr)); column-gap: 64px; }
.principle { border-top: 1px solid #424245; padding: 32px 0 56px; display: flex; flex-direction: column; gap: 8px; }
.principle h3 { font-size: 28px; font-weight: 600; line-height: 1.15; letter-spacing: -0.015em; color: #F5F5F7; }
.principle p { font-size: 19px; color: #A1A1A6; }

/* CTA */
.cta .wrap { display: flex; flex-direction: column; align-items: center; gap: 40px; }
.cta .email { font-size: clamp(21px, 2vw, 28px); line-height: 1.3; }
.cta-tight .wrap { gap: 24px; }
.cta-tight .cta-actions { display: flex; flex-direction: column; align-items: center; gap: 40px; }

/* About: story */
.story { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 40px 80px; }
.story .h2 { flex: 1 1 320px; }
.story-body { flex: 2 1 480px; display: flex; flex-direction: column; gap: 24px; font-size: 21px; line-height: 1.55; }

/* Approach: feature rows */
.features { padding: 40px 0 160px; }
.features .wrap { display: flex; flex-direction: column; gap: 160px; }
.feature { display: flex; flex-wrap: wrap; align-items: center; gap: 48px 80px; }
.feature.reverse { flex-direction: row-reverse; }
.feature-copy { flex: 1 1 400px; display: flex; flex-direction: column; gap: 16px; }
.feature-num { font-weight: 600; color: var(--text-2); }
.feature-title { font-size: clamp(40px, 3.9vw, 56px); font-weight: 600; line-height: 1.05; letter-spacing: -0.02em; }
.feature-sum { margin-top: 8px; font-size: 24px; font-weight: 500; line-height: 1.4; }
.feature-body { font-size: 19px; line-height: 1.55; color: var(--text-2); }
.feature-art {
  flex: 1 1 400px; height: 460px; border-radius: 20px; background: var(--gray);
  position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center;
}
.feature-art::before {
  content: ""; position: absolute; left: 50%; top: 50%; width: 400px; height: 400px; transform: translate(-50%, -50%);
  border-radius: 50%; background: radial-gradient(closest-side, rgba(43,91,255,.22), rgba(43,91,255,0));
}
.feature-art svg { position: relative; }

/* Contact */
.contact-grid { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 48px 64px; }
.form-card { flex: 2 1 560px; min-width: 0; background: var(--white); border-radius: 20px; padding: 48px; display: flex; flex-direction: column; gap: 28px; }
.form-card h2 { font-size: 32px; font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; }
fieldset { margin: 0; padding: 0; border: 0; min-width: 0; }
legend { padding: 0; margin-bottom: 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.row-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr)); gap: 20px; }
.field { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.label { font-size: 14px; font-weight: 600; color: var(--text); }
.label .opt { font-weight: 400; color: var(--text-2); }
.input {
  width: 100%; height: 52px; padding: 0 16px; border: 1px solid #86868B; border-radius: 12px; background: #fff;
  font: inherit; font-size: 17px; color: var(--text); transition: border-color .2s ease, box-shadow .2s ease;
}
.input::placeholder { color: var(--text-2); }
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px rgba(43,91,255,.18); }
textarea.input { height: 168px; padding: 14px 16px; line-height: 1.5; resize: vertical; }
.chip { position: relative; display: inline-flex; cursor: pointer; }
.chip input { position: absolute; width: 1px; height: 1px; margin: 0; opacity: 0; }
.chip span {
  display: inline-flex; align-items: center; height: 44px; padding: 0 20px; border: 1px solid #86868B; border-radius: 980px;
  background: #fff; font-size: 15px; color: var(--text); transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.chip:hover span { border-color: var(--text); }
.chip input:checked + span { background: var(--text); border-color: var(--text); color: #fff; }
.chip input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; padding-top: 4px; }
.form-foot p { font-size: 14px; color: var(--text-2); }
.form-status { font-size: 15px; color: var(--text-2); }
.contact-aside { flex: 1 1 260px; padding-top: 8px; display: flex; flex-direction: column; gap: 36px; }
.contact-aside div { display: flex; flex-direction: column; gap: 4px; }
.contact-aside .k { font-size: 14px; font-weight: 600; color: var(--text-2); }
.contact-aside a { padding: 2px 0; font-size: 21px; line-height: 1.35; }

/* Footer */
.site-footer { background: var(--gray); color: var(--text-2); font-size: 12px; line-height: 1.5; padding: 24px 0 40px; }
.footer-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 24px; }
.footer-row nav { display: flex; gap: 20px; }
.footer-row a { padding: 4px 0; color: var(--text-3); }

/* Motion */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* Mobile (390) */
@media (max-width: 733px) {
  .site-nav { display: flex; justify-content: space-between; gap: 12px; }
  .logo { font-size: 19px; }
  .nav-links { display: none; }
  .menu-btn { display: flex; }
  .btn-sm { padding: 0 14px; }

  .hero { min-height: 0; padding-top: 72px; }
  .hero-copy { margin-bottom: 48px; gap: 20px; }
  .hero-copy .display { font-size: 40px; line-height: 1.1; }
  .hero-copy .lead { font-size: 19px; }
  .hero-actions { margin-top: 8px; gap: 12px 24px; }
  .horizon { height: 240px; margin-top: 0; }
  .horizon .bloom { top: 42px; width: 92%; height: 140px; filter: blur(18px); }
  .horizon .planet {
    top: 112px; background: radial-gradient(42% 8% at 50% 0%, rgb(221,227,250) 0%, #F5F5F7 100%);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.9), 0 -1px 0 rgba(43,91,255,.45), 0 -12px 40px rgba(43,91,255,.28), 0 -36px 100px rgba(43,91,255,.22);
  }
  .horizon .fade { height: 56px; }

  .home-about { padding: 64px 0 96px; }
  .home-about .wrap { gap: 72px; }
  .statement { font-size: 28px; line-height: 1.25; text-align: left; text-wrap: pretty; }
  .stats { gap: 24px; text-align: left; }
  .stats.big { text-align: center; gap: 40px; }
  .stat-num { font-size: 48px; }
  .stats.ruled .stat { padding-top: 20px; }

  .section { padding: 96px 0; }
  .stack { gap: 40px; }
  .card { min-height: 0; padding: 32px; gap: 40px; }
  .card h3 { font-size: 28px; }
  .principles-head { margin-bottom: 48px; }
  .principle { padding: 24px 0 40px; }
  .principle h3 { font-size: 24px; }
  .principle p { font-size: 17px; }

  .page-hero { padding: 72px 0 72px; }
  .page-hero .display { font-size: 40px; line-height: 1.1; }
  .page-hero .lead { font-size: 19px; }
  .story-body { font-size: 19px; }
  .features { padding: 24px 0 96px; }
  .features .wrap { gap: 96px; }
  .feature, .feature.reverse { flex-direction: column-reverse; align-items: stretch; gap: 24px; }
  .feature-copy, .feature-art { flex: none; }
  .feature-art { height: 280px; }
  .feature-title { font-size: 40px; line-height: 1.1; }
  .feature-art svg { width: 180px; height: 180px; }
  .feature-sum { font-size: 21px; }
  .feature-body { font-size: 17px; }

  .form-card { flex: 1 1 100%; padding: 28px 20px; gap: 24px; }
  .form-card h2 { font-size: 28px; }
  .contact-aside { flex: 1 1 100%; }

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