:root {
  color-scheme: light;
  --blue: #2563eb;
  --blue-deep: #1746a2;
  --ink: #172033;
  --muted: #647084;
  --line: #dce3ee;
  --soft: #f4f7fb;
  --white: #ffffff;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.shell {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid rgba(220, 227, 238, .8);
  background: rgba(255, 255, 255, .94);
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header-inner { min-height: 76px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .16em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 9px;
  background: var(--blue);
  color: var(--white);
  font-size: 1.05rem;
  letter-spacing: 0;
}

.header-label {
  color: var(--muted);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .04em;
}

.hero {
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 28%, rgba(37, 99, 235, .13), transparent 32%),
    linear-gradient(180deg, #fff 0%, #f8faff 100%);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, .65fr);
  align-items: center;
  gap: 80px;
  min-height: 610px;
  padding-block: 96px;
}

.overline,
.section-number {
  margin: 0 0 24px;
  color: var(--blue);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .17em;
  text-transform: uppercase;
}

.overline span {
  margin-left: .55rem;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: lowercase;
}

h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(4rem, 10vw, 7.4rem);
  font-weight: 800;
  letter-spacing: -.065em;
  line-height: .9;
}

.hero-lead {
  max-width: 720px;
  margin: 38px 0 0;
  font-size: clamp(1.45rem, 2.5vw, 2.15rem);
  font-weight: 600;
  letter-spacing: -.025em;
  line-height: 1.25;
}

.hero-text {
  max-width: 660px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.product-mark {
  display: grid;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 30%;
  background: var(--blue);
  box-shadow: 0 32px 80px rgba(37, 99, 235, .25);
  color: var(--white);
  font-size: clamp(7rem, 16vw, 12rem);
  font-weight: 700;
  line-height: 1;
}

.content-section { padding: 104px 0; }
.content-section--muted { background: var(--soft); }

.section-grid {
  display: grid;
  grid-template-columns: minmax(180px, .55fr) minmax(0, 1.45fr);
  gap: 80px;
}

.section-number { margin-bottom: 14px; }

h2 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  letter-spacing: -.035em;
  line-height: 1.15;
}

.section-copy { max-width: 700px; }

.section-copy > p {
  margin: 0 0 16px;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.section-copy strong { color: var(--blue-deep); }

.identity-intro { color: var(--muted); }

h3 {
  margin: 10px 0 32px;
  font-size: clamp(1.35rem, 2.4vw, 1.8rem);
  letter-spacing: -.025em;
  line-height: 1.35;
}

h3 span { font-weight: 500; }

dl { margin: 0; }

dl div {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 18px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

dt {
  color: var(--muted);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

dd { margin: 0; }

a { color: var(--blue-deep); text-underline-offset: 3px; }
a:hover { color: var(--blue); }

footer {
  background: var(--ink);
  color: rgba(255, 255, 255, .72);
}

.footer-inner {
  min-height: 112px;
  font-size: .84rem;
}

.footer-inner span:first-child {
  color: var(--white);
  font-weight: 800;
  letter-spacing: .14em;
}

@media (max-width: 760px) {
  .shell { width: min(100% - 32px, 620px); }
  .header-label { display: none; }
  .hero-grid { grid-template-columns: 1fr; gap: 54px; min-height: 0; padding-block: 72px; }
  .product-mark { width: min(68vw, 270px); }
  .content-section { padding: 72px 0; }
  .section-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-inner { align-items: flex-start; flex-direction: column; justify-content: center; gap: 10px; padding-block: 28px; }
}

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