:root {
  --sky-50: #f0fbff;
  --sky-100: #e0f7ff;
  --sky-200: #b9ecff;
  --sky-300: #7dd3fc;
  --sky-500: #38bdf8;
  --sky-700: #0284c7;
  --ink: #0c4a6e;
  --muted: #48667a;
  --line: rgba(2, 132, 199, .18);
  --white: #ffffff;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #f8fdff 0%, var(--sky-50) 44%, #ffffff 100%);
  letter-spacing: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(248, 253, 255, .92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

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

.header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: .04em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav a {
  border-radius: 8px;
  color: var(--muted);
  font-weight: 700;
  padding: 10px 14px;
}

.nav a[aria-current="page"],
.nav a:hover {
  color: var(--sky-700);
  background: var(--sky-100);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  font-size: 1.3rem;
}

.hero {
  min-height: calc(100vh - 78px);
  display: grid;
  align-items: center;
  padding: 64px 0;
}

.hero-grid,
.split-grid,
.service-grid,
.contact-grid {
  display: grid;
  gap: 28px;
}

.hero-grid {
  grid-template-columns: minmax(0, 820px);
  align-items: center;
}

.eyebrow {
  color: var(--sky-700);
  font-weight: 800;
  margin: 0 0 14px;
  text-transform: uppercase;
}

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

h1 {
  font-size: clamp(3rem, 8vw, 6.6rem);
  line-height: .9;
  margin-bottom: 24px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
  margin-bottom: 20px;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.lead {
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.35rem);
  line-height: 1.7;
  max-width: 680px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  align-items: center;
  background: var(--sky-500);
  border: 1px solid var(--sky-500);
  border-radius: 8px;
  color: #083344;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
}

.button.secondary {
  background: var(--white);
  border-color: var(--line);
  color: var(--sky-700);
}

.band {
  padding: 84px 0;
}

.band.tint {
  background: linear-gradient(180deg, var(--sky-100), #ffffff);
  border-block: 1px solid var(--line);
}

.split-grid {
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

.service-grid {
  grid-template-columns: repeat(3, 1fr);
}

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px;
  min-height: 220px;
}

.card p,
.section-copy,
.contact-note {
  color: var(--muted);
  line-height: 1.7;
}

.icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--sky-100);
  color: var(--sky-700);
  font-weight: 900;
  margin-bottom: 18px;
}

.contact-grid {
  grid-template-columns: 1fr minmax(280px, 420px);
  align-items: stretch;
}

.notice {
  background: #e5f8ff;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  min-height: 260px;
  place-items: center;
  padding: 36px;
  text-align: center;
}

.notice strong {
  display: block;
  font-size: clamp(1.7rem, 4vw, 3rem);
  line-height: 1;
}

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

.footer .section-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

@media (max-width: 820px) {
  .menu-toggle {
    display: inline-grid;
    place-items: center;
  }

  .nav {
    position: absolute;
    left: 20px;
    right: 20px;
    top: 78px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 8px;
  }

  .nav.is-open {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding: 54px 0;
  }

  .hero-grid,
  .split-grid,
  .service-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .band {
    padding: 58px 0;
  }

  .footer .section-inner {
    flex-direction: column;
  }
}