*, *::before, *::after {
  box-sizing: border-box;
}

html {
  margin: 0;
  padding: 0;
  font-family: 'Helvetica Neue', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Ubuntu, Cantarell, sans-serif;
  background-color: #fff;
  background: linear-gradient(180deg,rgba(255, 255, 255, 1) 0%, rgba(245, 245, 245, 1) 50%, rgba(255, 255, 255, 1) 100%);
  background-attachment: fixed; 
  color: #444;
}

body {
  padding: 0;;
  max-width: 40rem;
  margin: 0 auto;
}

img {
  max-width: 100%;
  height: auto;
}

.anchor {
  display: block;
  position: relative;
  top: -2em;
  visibility: hidden;
}

.skip {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

h1 {
  font-size: 3rem;
}

h1 a {
  text-decoration: none;
}

h1, h2 {
  margin: 2rem auto 1.5rem;
}

main h1, main h2, main ul, main li {
  margin: 0.75rem 0;
  padding: 0;
  list-style: none;
} 

header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

header ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: inline-flex;
  gap: 1.7em;
}

.header-nav {
  max-width: 1800px;
  margin: 0 auto 1em;
  padding: 0 1em;
}

main {
  max-width: 1800px;
  margin: 0 auto;
  padding: 0 1em;
  font-size: 1.2rem;
}

.section {
  margin: 5em 0;
}

footer {
  text-align: center;
  padding: 0 1em 1em;
  margin: 4em 0 0;
  font-size: smaller;
}

footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: inline-flex;
  gap: 1em;
}

a {
  color: #0266a9;
  text-decoration: underline;
  transition: 0.6s ease;
}

a:hover {
  color: #A84402;
  text-decoration: none;
}

.contact li span:first-child {
  font-weight: 700;
  padding: 0;
}