* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0f0f0f;
  color: #e0e0e0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card {
  background: #1a1a1a;
  border: 1px solid #2a2a2a;
  border-radius: 12px;
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 360px;
  text-align: center;
}
h1 { font-size: 1.4rem; font-weight: 600; margin-bottom: 0.4rem; }
p { font-size: 0.9rem; color: #888; margin-bottom: 2rem; }
button {
  width: 100%;
  padding: 0.85rem;
  background: #2563eb;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
}
button:hover { background: #1d4ed8; }
button:disabled { background: #374151; cursor: not-allowed; }
.secondary-button { margin-top: 0.75rem; background: #1f2937; }
.menu {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.2rem;
  text-align: left;
}
.registration-menu { margin-top: 1.5rem; margin-bottom: 0; }
.menu-item {
  display: block;
  padding: 0.65rem 0.9rem;
  background: #111;
  border: 1px solid #2a2a2a;
  border-radius: 6px;
  color: #aaa;
  font-size: 0.9rem;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s;
}
.menu-item:hover { border-color: #444; color: #e0e0e0; }
.menu-item span { color: #555; margin-right: 0.5rem; }
#status { margin-top: 1.2rem; font-size: 0.875rem; min-height: 1.4rem; }
.error { color: #f87171; }
.success { color: #4ade80; }
.info { color: #60a5fa; }