:root {
  --bg: #f4f7f8;
  --surface: #ffffff;
  --ink: #102a43;
  --muted: #486581;
  --accent: #0f766e;
  --border: #d9e2ec;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, #dff4f0 0%, transparent 42%),
    radial-gradient(circle at bottom left, #e9f2fb 0%, transparent 35%),
    var(--bg);
  font-family: "IBM Plex Sans", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
}

main {
  max-width: 860px;
  margin: 40px auto;
  padding: 24px;
}

article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
}

h1 {
  margin-top: 0;
  margin-bottom: 8px;
  line-height: 1.2;
}

h2 {
  margin-top: 28px;
  margin-bottom: 8px;
  color: var(--accent);
  line-height: 1.25;
}

p {
  margin-top: 0;
}

ul {
  margin-top: 0;
  padding-left: 22px;
}

li + li {
  margin-top: 8px;
}

.meta {
  color: var(--muted);
  margin-bottom: 0;
}

.contact {
  margin-top: 10px;
  font-weight: 600;
}

@media (max-width: 700px) {
  main {
    margin: 0;
    padding: 12px;
  }

  article {
    border-radius: 16px;
    padding: 20px;
  }
}