*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #f3f4f6;
  color: #111827;
  margin: 0;
  line-height: 1.5;
}

.topbar {
  background: #0f172a;
  color: #e5e7eb;
  padding: 0.75rem 0;
  box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}
.topbar-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.topbar a.brand {
  color: #f9fafb;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.topbar .who {
  margin-right: 1rem;
  color: #9ca3af;
}
.topbar form.inline {
  display: inline;
  margin: 0;
}
.topbar .link {
  background: none;
  border: none;
  color: #e5e7eb;
  cursor: pointer;
  padding: 0;
  font: inherit;
}
.topbar .link:hover { color: #fff; text-decoration: underline; }

.container {
  max-width: 960px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.card {
  background: #fff;
  border-radius: 8px;
  padding: 2rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
  border: 1px solid #e5e7eb;
}
.card.narrow {
  max-width: 420px;
  margin: 2rem auto;
}
.card h1 {
  margin-top: 0;
  font-size: 1.4rem;
}

label {
  display: block;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: #374151;
}
input[type="text"], input[type="password"] {
  display: block;
  width: 100%;
  padding: 0.6rem 0.75rem;
  font-size: 1rem;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  margin-top: 0.25rem;
  background: #fff;
}
input:focus {
  outline: 2px solid #2563eb;
  outline-offset: -1px;
  border-color: #2563eb;
}

button.primary {
  margin-top: 1.25rem;
  padding: 0.6rem 1.2rem;
  background: #2563eb;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  font-weight: 500;
}
button.primary:hover { background: #1d4ed8; }

.flash {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}
.flash-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.flash-success { background: #dcfce7; color: #14532d; border: 1px solid #bbf7d0; }
.flash-info { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

.qr { text-align: center; margin: 1.5rem 0; }
.qr img { max-width: 220px; border: 1px solid #e5e7eb; padding: 0.5rem; background: #fff; }

details { margin: 1rem 0; }
details summary { cursor: pointer; color: #6b7280; font-size: 0.9rem; }
code.secret {
  display: block;
  background: #f3f4f6;
  padding: 0.5rem;
  border-radius: 4px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  margin-top: 0.5rem;
  word-break: break-all;
}

dl.stats { display: flex; gap: 2rem; margin-top: 1.5rem; }
dl.stats > div { flex: 1; }
dl.stats dt { font-size: 0.85rem; color: #6b7280; text-transform: uppercase; letter-spacing: 0.05em; }
dl.stats dd { margin: 0.25rem 0 0; font-size: 1.75rem; font-weight: 600; color: #111827; }

.footer {
  text-align: center;
  color: #9ca3af;
  padding: 2rem 1rem;
  font-size: 0.85rem;
}
