* { box-sizing: border-box; }

:root {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #111;
  background: #fff;
}

body {
  margin: 0;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header, main, footer {
  padding-left: max(1rem, calc((100% - 1050px) / 2));
  padding-right: max(1rem, calc((100% - 1050px) / 2));
}

header {
  display: flex;
  align-items: center;
  gap: .75rem;
  border-bottom: 1px solid #ccc;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

header img {
  width: 3.25rem;
  height: 3.25rem;
  object-fit: cover;
}

header h1 { margin: 0; font-size: 1.3rem; font-weight: 600; }

.byline { color: #555; font-size: .9rem; margin: .25rem 0 0; }

main { flex: 1; padding-top: 1.5rem; padding-bottom: 3rem; }

a { color: inherit; }

footer {
  border-top: 1px solid #ccc;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

@media (max-width: 700px) {
  header, main, footer {
    padding-left: .75rem;
    padding-right: .75rem;
  }
}