:root {
  --blue: #0078b8;
  --dark: #17202a;
  --text: #39424e;
  --light: #f4f8fb;
  --white: #ffffff;
  --border: #dce8f0;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}
.container { width: min(1120px, 92%); margin: 0 auto; }
.topbar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo { height: 58px; width: auto; }
nav { display: flex; gap: 22px; flex-wrap: wrap; }
nav a { color: var(--dark); text-decoration: none; font-weight: 600; }
nav a:hover { color: var(--blue); }
.hero {
  background: linear-gradient(135deg, #e9f6fc 0%, #ffffff 50%, #d9eef8 100%);
  padding: 88px 0;
}
.hero-content { max-width: 780px; }
.tag {
  color: var(--blue);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  font-size: 14px;
}
h1 {
  color: var(--dark);
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.05;
  margin: 10px 0 18px;
}
.lead { font-size: 21px; max-width: 720px; }
.button {
  display: inline-block;
  margin-top: 18px;
  background: var(--blue);
  color: var(--white);
  text-decoration: none;
  padding: 14px 24px;
  border-radius: 10px;
  font-weight: 700;
}
.section { padding: 72px 0; }
.alt { background: var(--light); }
h2 { color: var(--dark); font-size: 34px; margin: 0 0 18px; }
h3 { color: var(--dark); margin-top: 0; }
.grid.two {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 36px;
  align-items: start;
}
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 26px;
}
.card, .highlight {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px;
  box-shadow: 0 10px 28px rgba(20, 65, 90, .07);
}
.highlight {
  background: var(--blue);
  color: var(--white);
  border: none;
}
.highlight h3 { color: var(--white); }
.quote {
  font-size: 22px;
  color: var(--blue);
  font-weight: 700;
}
.contact {
  max-width: 760px;
  text-align: center;
}
footer {
  background: var(--dark);
  color: var(--white);
  padding: 22px 0;
  text-align: center;
}

@media (max-width: 820px) {
  .nav { flex-direction: column; padding: 16px 0; }
  nav { justify-content: center; }
  .grid.two, .cards { grid-template-columns: 1fr; }
  .hero { padding: 56px 0; }
}