* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #f0faf4 0%, #fff 50%, #f0f7fa 100%);
  color: #333;
  text-align: center;
  padding: 2rem;
}

main {
  max-width: 400px;
}

.icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

p {
  font-size: 1.05rem;
  color: #555;
  line-height: 1.5;
}

.sub {
  font-size: 0.95rem;
  color: #888;
  margin-top: 0.25rem;
}

.help {
  font-size: 0.85rem;
  color: #999;
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}

.help a {
  color: #555;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.help strong {
  color: #555;
}

.badge {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  font-size: 0.8rem;
  color: #888;
  text-decoration: none;
  border: 1px solid #e0e0e0;
  border-radius: 20px;
  transition: border-color 0.2s, color 0.2s;
}

.badge:hover {
  border-color: #60cf31;
  color: #60cf31;
}

.badge strong {
  font-weight: 600;
  color: #1a1a1a;
}