:root {
  --bg: #0b1220;
  --surface: #ffffff;
  --muted: #f3f5f8;
  --text: #162033;
  --text-on-dark: #e9eef8;
  --primary: #2f6bff;
  --primary-dark: #1f4ec4;
  --border: #dde3ef;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--surface);
  line-height: 1.5;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
}

.header {
  background: var(--bg);
  color: var(--text-on-dark);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.nav nav {
  display: flex;
  gap: 1rem;
}

.nav a {
  color: var(--text-on-dark);
  font-weight: 600;
}

.brand {
  font-weight: 700;
}

.hero {
  background: linear-gradient(120deg, #0b1220 0%, #1f2f57 100%);
  color: var(--text-on-dark);
  padding: 5rem 0;
}

.hero-content {
  max-width: 800px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  opacity: 0.9;
}

h1 {
  margin: 0.6rem 0 1rem;
  font-size: clamp(1.9rem, 5vw, 3rem);
  line-height: 1.2;
}

h2 {
  margin: 0 0 1.2rem;
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1.2;
}

.lead {
  margin: 0 0 1.8rem;
  font-size: 1.1rem;
  opacity: 0.95;
}

.section {
  padding: 4rem 0;
}

.section-muted {
  background: var(--muted);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem;
  background: #fff;
}

.card h3 {
  margin-top: 0;
}

.benefits {
  margin: 0;
  padding-left: 1.2rem;
}

.benefits li + li {
  margin-top: 0.6rem;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.2rem;
  border-radius: 10px;
  font-weight: 700;
  transition: transform 0.15s ease, background 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

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

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

.cta {
  background: #0f1a30;
  color: var(--text-on-dark);
}

.cta-box {
  text-align: center;
}

.btn-light {
  background: #fff;
  color: #0f1a30;
}

.contacts .small {
  color: #58627a;
  font-size: 0.95rem;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 1rem 0;
  font-size: 0.95rem;
  color: #6b7387;
}

@media (max-width: 720px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }
}