:root {
  --bg: #f6f5f9;
  --text: #17151c;
  --muted: #5d5868;
  --accent: #6d4fd8;
  --on-accent: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121016;
    --text: #f1eff5;
    --muted: #a9a3b5;
    --accent: #a58cff;
    --on-accent: #121016;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  width: 100%;
  max-width: 420px;
  padding: 32px 16px;
  text-align: center;
}

.brand {
  margin: 0 0 24px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 14px;
}

h1 { margin: 0 0 12px; font-size: 24px; line-height: 1.25; }

p { margin: 0 0 24px; color: var(--muted); }

.button {
  display: block;
  padding: 16px;
  border-radius: 12px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 700;
  text-decoration: none;
}

.hint { margin-top: 20px; font-size: 14px; }

[hidden] { display: none !important; }