:root {
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #fafafa;
  color: #1a1a1a;
}

.card {
  text-align: center;
  max-width: 90vw;
}

h1 {
  font-size: clamp(1.5rem, 6vw, 3rem);
  font-weight: 700;
  margin: 0;
  white-space: nowrap;
  cursor: pointer;
  display: inline-block;
}

h1.bounce {
  animation: bounce 0.6s ease;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0) scale(1); }
  25% { transform: translateY(-18px) scale(1.05); }
  50% { transform: translateY(0) scale(0.97); }
  75% { transform: translateY(-8px) scale(1.02); }
}

.site-footer {
  position: fixed;
  bottom: 24px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.9rem;
  color: #666;
}

.site-footer .divider {
  margin: 0 10px;
}

.site-footer .disclaimer {
  margin: 8px 0 0;
  font-size: 0.75rem;
  color: #999;
}

.site-footer a {
  color: #1a1a1a;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}