:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #183b55;
  background: #f5f7f8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

main {
  max-width: 920px;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}

.viewer-header {
  margin-bottom: 1.5rem;
}

.brand {
  display: flex;
  gap: 0.625rem;
  align-items: center;
  margin: 0 0 1.25rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand-mark {
  display: inline-grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border-radius: 50%;
  background: #d94b38;
  color: #fff;
  font-size: 0.75rem;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.6rem, 5vw, 2.25rem);
}

p,
noscript {
  line-height: 1.5;
}

.measurement-shell {
  padding: 1rem;
  overflow-x: auto;
  border: 1px solid #d8e0e5;
  border-radius: 0.5rem;
  background: #fff;
  box-shadow: 0 0.25rem 1rem rgb(24 59 85 / 8%);
}

.measurement-shell[hidden],
#viewer-error[hidden],
#viewer-missing[hidden] {
  display: none;
}

ah-lebensfeuer {
  display: block;
  min-width: 834px;
  min-height: 32rem;
}

#viewer-error,
noscript {
  padding: 1rem;
  border-left: 0.25rem solid #c72135;
  background: #fff2f4;
  color: #721c2a;
}

#viewer-missing {
  padding: 1rem;
  border-left: 0.25rem solid #5b7d95;
  background: #f1f4f6;
  color: #3b4a55;
}