:root {
  --bg: #f4f7f8;
  --surface: #ffffff;
  --surface-soft: #fbfdfd;
  --primary: #153f46;
  --accent: #159a91;
  --border: #d8e1e4;
  --muted: #627178;
  --shadow: rgba(15, 23, 42, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--primary);
  font-family: Arial, sans-serif;
  line-height: 1.55;
}

main {
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 32px 18px;
}

.home-main {
  width: min(860px, 100%);
  padding-top: 40px;
}

.card,
section {
  margin-bottom: 14px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 8px 18px var(--shadow);
}

h1,
h2 {
  color: var(--primary);
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(1.7rem, 5vw, 2.2rem);
  line-height: 1.15;
}

h2 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

p {
  margin: 0 0 12px;
  color: var(--muted);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.nav a,
.link-grid a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-soft);
}

.link-grid {
  display: grid;
  gap: 10px;
  margin: 22px 0;
}

.meta {
  font-weight: 700;
  color: var(--primary);
}

.contact {
  padding-top: 6px;
}

@media (max-width: 560px) {
  main {
    padding: 22px 14px;
  }

  .nav {
    display: grid;
  }
}