:root {
  color-scheme: dark;
  --bg: #0f1216;
  --fg: #e8ecf1;
  --accent: #c9a227;
  --muted: #8a929c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(ellipse 120% 80% at 50% 0%, #1a2230 0%, var(--bg) 55%);
  color: var(--fg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.wrap {
  text-align: center;
  max-width: 28rem;
}

h1 {
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 0 0 0.5rem;
}

.tag {
  color: var(--accent);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0 2rem;
}

.join {
  font-size: 1.05rem;
  line-height: 1.5;
  margin: 0 0 1rem;
}

.addr {
  display: inline-block;
  padding: 0.2em 0.5em;
  border-radius: 6px;
  background: rgba(201, 162, 39, 0.12);
  color: #edd77a;
  font-weight: 600;
}

.hint {
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.45;
  margin: 0;
}