* { box-sizing: border-box; }
body {
  font-family: -apple-system, Segoe UI, Roboto, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  margin: 0;
  padding: 2rem 1rem;
}
.wrap { max-width: 640px; margin: 0 auto; }
h1 { margin-bottom: 0.25rem; }
.sub { color: #94a3b8; margin-top: 0; }
.prompt {
  background: #1e293b;
  padding: 1rem;
  border-radius: 8px;
  font-size: 1.1rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}
textarea {
  width: 100%;
  padding: 0.75rem;
  border-radius: 8px;
  border: 1px solid #334155;
  background: #0b1220;
  color: #e2e8f0;
  font-size: 1rem;
  resize: none;
}
.stats {
  display: flex;
  gap: 1.5rem;
  margin: 1rem 0;
  font-size: 0.95rem;
}
.controls {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
input, button {
  padding: 0.6rem 0.9rem;
  border-radius: 6px;
  border: 1px solid #334155;
  background: #1e293b;
  color: #e2e8f0;
  font-size: 0.95rem;
}
button {
  cursor: pointer;
  background: #6366f1;
  border: none;
}
button:hover { background: #4f46e5; }
.result { font-weight: 600; min-height: 1.5rem; }
#leaderboard { padding-left: 1.25rem; }
#leaderboard li { margin-bottom: 0.25rem; }