* {
  box-sizing: border-box;
}

:root {
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --soft: #f8fafc;
  --brand: #155eef;
  --brand-dark: #0b3fb3;
  --night: #07111f;
  --white: #ffffff;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226,232,240,.8);
}

.nav-wrap {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  letter-spacing: .07em;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--brand);
  color: white;
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
}

.nav {
  display: flex;
  gap: 28px;
}

.nav a {
  color: #334155;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

.nav a:hover {
  color: var(--brand);
}

.hero {
  padding: 112px 0 96px;
  background:
    radial-gradient(circle at 85% 15%, rgba(21,94,239,.13), transparent 28rem),
    linear-gradient(180deg, #fff 0%, #f8fbff 100%);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr .65fr;
  gap: 70px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
}

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

h1 {
  max-width: 800px;
  margin-bottom: 24px;
  font-size: clamp(44px, 6vw, 72px);
  line-height: 1.04;
  letter-spacing: -.045em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.12;
  letter-spacing: -.035em;
}

h3 {
  margin-bottom: 12px;
  font-size: 20px;
  line-height: 1.25;
}

.hero-copy {
  max-width: 700px;
  color: #475569;
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 10px;
  font-weight: 700;
  text-decoration: none;
  transition: .2s ease;
}

.button.primary {
  color: white;
  background: var(--brand);
}

.button.primary:hover {
  background: var(--brand-dark);
  transform: translateY(-1px);
}

.button.secondary {
  color: var(--ink);
  border: 1px solid var(--line);
  background: white;
}

.button.secondary:hover {
  border-color: #cbd5e1;
  transform: translateY(-1px);
}

.hero-card {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,.86);
  box-shadow: 0 22px 70px rgba(15,23,42,.08);
}

.signal-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 66px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  font-weight: 700;
}

.signal-row:last-child {
  border-bottom: 0;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 6px rgba(21,94,239,.09);
}

.section {
  padding: 92px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr .65fr;
  gap: 60px;
  align-items: end;
  margin-bottom: 46px;
}

.section-heading p {
  color: var(--muted);
  font-size: 17px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.card {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: white;
}

.card p {
  color: var(--muted);
  font-size: 14px;
}

.card-number {
  margin-bottom: 50px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 800;
}

.about {
  background: var(--soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 90px;
}

.about-copy {
  color: #475569;
  font-size: 17px;
}

.principles {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.principles span {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: white;
  color: #334155;
  font-size: 13px;
  font-weight: 700;
}

.contact {
  background: white;
}

.contact-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: center;
  padding: 54px;
  border-radius: 20px;
  background: var(--night);
  color: white;
}

.contact-card h2 {
  max-width: 740px;
}

.contact-card p:not(.eyebrow) {
  max-width: 720px;
  color: #cbd5e1;
}

.button.light {
  white-space: nowrap;
  color: var(--ink);
  background: white;
}

.button.light:hover {
  transform: translateY(-1px);
}

footer {
  padding: 28px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

@media (max-width: 860px) {
  .hero {
    padding-top: 82px;
  }
  .hero-grid,
  .section-heading,
  .about-grid,
  .contact-card {
    grid-template-columns: 1fr;
  }
  .hero-grid,
  .about-grid {
    gap: 42px;
  }
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-card {
    gap: 20px;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 28px, 1120px);
  }
  .nav {
    gap: 14px;
  }
  .nav a {
    font-size: 13px;
  }
  .brand > span:last-child {
    display: none;
  }
  h1 {
    font-size: 42px;
  }
  .cards {
    grid-template-columns: 1fr;
  }
  .section {
    padding: 70px 0;
  }
  .contact-card {
    padding: 32px 24px;
  }
  .footer-wrap {
    flex-direction: column;
  }
}