body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  max-width: 52rem;
  margin: 2rem auto;
  padding: 0 1rem;
  color: #1a1a1a;
}

header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid #ddd;
  padding-bottom: 0.75rem;
  margin-bottom: 1.5rem;
}

header h1 {
  margin: 0;
  font-size: 1.25rem;
}

#who {
  font-size: 0.9rem;
  color: #555;
}

section {
  margin-bottom: 2.5rem;
}

h2 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: #444;
  margin-bottom: 0.75rem;
}

table {
  border-collapse: collapse;
  width: 100%;
}

th, td {
  padding: 0.35rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid #eee;
}

th {
  font-size: 0.8rem;
  color: #666;
  font-weight: 600;
}

form {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  align-items: flex-start;
}

input, select, textarea, button {
  font: inherit;
  padding: 0.4rem 0.6rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}

textarea {
  flex: 1;
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
}

button {
  cursor: pointer;
  background: #f5f5f5;
}

button:hover {
  background: #ebebeb;
}

#create-status {
  background: #fff7e6;
  border: 1px solid #f0c36d;
  border-radius: 4px;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
}

#fingerprint {
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
}

#signin {
  text-align: center;
  margin-top: 4rem;
  font-size: 1.1rem;
}