:root {
  color-scheme: light;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: #f7f7f8;
  color: #1f2937;
}

.site-header,
.site-footer {
  padding: 1rem;
  text-align: center;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

.site-footer {
  border-bottom: 0;
  border-top: 1px solid #e5e7eb;
}

main {
  width: min(900px, 92vw);
  margin: 2rem auto;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 1.5rem;
}

h1,
h2 {
  margin-top: 0;
}