* { box-sizing: border-box; }

body{
  margin:0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color:#111;
  background:#fff;
  line-height:1.6;
}

header{
  max-width:1100px;
  margin:0 auto;
  padding:28px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom:1px solid #eee;
}

.logo{
  letter-spacing:0.18em;
  font-weight:600;
  font-size:14px;
}

nav a{
  text-decoration:none;
  color:#111;
  margin-left:18px;
  font-size:14px;
  opacity:0.85;
}

nav a:hover{ opacity:1; }

main{
  max-width:1100px;
  margin:0 auto;
  padding:90px 24px 120px;
  text-align:center;
}

h1{
  font-size:56px;
  line-height:1.08;
  margin:0 0 18px;
  letter-spacing:-0.02em;
}

p{
  max-width:720px;
  margin:0 auto 30px;
  font-size:16px;
  opacity:0.85;
}

.button{
  display:inline-block;
  padding:12px 22px;
  border:1px solid #111;
  color:#111;
  text-decoration:none;
  font-size:14px;
  letter-spacing:0.08em;
}

.button:hover{
  background:#111;
  color:#fff;
}

footer{
  max-width:1100px;
  margin:0 auto;
  padding:24px;
  border-top:1px solid #eee;
  font-size:13px;
  opacity:0.75;
  text-align:center;
}