:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --text: #17202a;
  --muted: #5f6b7a;
  --accent: #0d5fd8;
  --accent-dark: #0a47a5;
  --line: #dce4ee;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

.container {
  width: min(1080px, 92%);
  margin: 0 auto;
}

.hero {
  background: linear-gradient(135deg, #0d5fd8, #123d8a);
  color: #fff;
  padding: 84px 0 72px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
  margin: 0 0 10px;
  opacity: 0.9;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  line-height: 1.2;
}

.lead {
  max-width: 760px;
  font-size: 1.06rem;
  margin: 0 0 24px;
}

.btn {
  display: inline-block;
  text-decoration: none;
  background: #fff;
  color: var(--accent-dark);
  font-weight: 700;
  padding: 12px 20px;
  border-radius: 10px;
  transition: transform 0.15s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  background: #e9f0ff;
}

.btn.secondary {
  background: var(--accent);
  color: #fff;
}

.btn.secondary:hover {
  background: var(--accent-dark);
}

.section {
  padding: 56px 0;
}

.section.alt {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(1.35rem, 2.2vw, 2rem);
}

p {
  margin: 0 0 14px;
  color: var(--text);
}

.contacts-list {
  margin: 18px 0 24px;
  padding-left: 20px;
}

.contacts-list li {
  margin: 9px 0;
}

a {
  color: var(--accent-dark);
}

.footer {
  background: #0c1a2e;
  color: #cfd8e7;
  padding: 20px 0;
  font-size: 0.95rem;
}

.footer p {
  margin: 0;
  color: inherit;
}

@media (max-width: 720px) {
  .hero {
    padding: 68px 0 58px;
  }

  .section {
    padding: 44px 0;
  }
}