:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --primary: #1f4b73;
  --primary-soft: #4876a8;
  --accent: #f2c94c;
  --text: #25303f;
  --muted: #5f6d7d;
  --border: #d9e2ec;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

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

.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(209, 221, 233, 0.9);
  z-index: 20;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  height: 52px;
  width: auto;
}

nav a {
  margin-left: 24px;
  font-weight: 600;
  color: var(--text);
}

main {
  max-width: 1200px;
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 80px 24px 56px;
}

.hero-text {
  max-width: 620px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 700;
}

.hero h1 {
  margin: 24px 0 20px;
  font-size: clamp(2.8rem, 3.4vw, 4.6rem);
  line-height: 1.02;
}

.hero p {
  max-width: 540px;
  color: var(--muted);
  font-size: 1.05rem;
}

.button {
  display: inline-block;
  margin-top: 28px;
  padding: 16px 28px;
  background: var(--primary);
  color: #fff;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, background 0.2s ease;
}

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

.services,
.advantages,
.contact {
  padding: 64px 24px;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
}

.section-header h2 {
  margin: 0.8rem 0 16px;
  font-size: 2.4rem;
}

.section-header p {
  margin: 0;
  color: var(--muted);
}

.service-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 18px 50px rgba(63, 75, 92, 0.08);
}

.service-card h3 {
  margin: 18px 0 12px;
}

.service-card p {
  color: var(--muted);
}

.advantages {
  background: #eef4fb;
}

.advantages {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 36px;
  align-items: center;
}

.advantages-image img {
  border-radius: 30px;
  box-shadow: 0 28px 70px rgba(31, 75, 115, 0.12);
}

.advantages-copy ul {
  padding-left: 1.3rem;
  margin: 24px 0 18px;
  color: var(--text);
}

.advantages-copy li {
  margin-bottom: 14px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.contact-grid div {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 24px;
  text-align: center;
}

.contact-grid h3 {
  margin-bottom: 12px;
}

.small-note {
  margin-top: 28px;
  text-align: center;
  color: var(--muted);
}

footer {
  text-align: center;
  padding: 24px 0 28px;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 56px;
  }

  .services,
  .advantages,
  .contact {
    padding: 48px 18px;
  }

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

@media (max-width: 720px) {
  .header-inner {
    flex-direction: column;
    gap: 18px;
  }

  nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }

  .hero h1 {
    font-size: 2.8rem;
  }

  .advantages {
    grid-template-columns: 1fr;
  }
}