body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f6f7f8;
  color: #222;
}

.centered {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.centered.narrow {
  max-width: 420px;
  margin: auto;
}

.muted {
  color: #666;
  margin-bottom: 2rem;
}

h1 {
  font-size: 2.4rem;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 1.6rem;
}

.tagline {
  max-width: 480px;
  font-size: 0.9rem;
  color: #555;
  margin-bottom: 2rem;
  text-align: center;
}

footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.85rem;
  color: #777;
}

.topbar{
  background: #2c3e50;
  color: white;
  padding: 0.9rem 1.5rem;

  position: sticky;
  top: 0;
  z-index: 1000;
}

.topbar-inner {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;

  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
}


.page {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 3rem;
  background: #f4f6f8;
}

.topbar-link {
  color: inherit;
  text-decoration: none;
}

.topbar-link:hover {
  text-decoration: underline;
}