:root {
  --bg: #0f0f10;
  --fg: #e5e7eb;
  --muted: #9ca3af;
  --accent: #41b883;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif; }
.container { max-width: 640px; margin: 10vh auto; padding: 24px; text-align: center; }
h1 { font-weight: 600; margin: 0 0 16px; }
p { color: var(--muted); }
.button { display: inline-block; padding: 10px 16px; background: var(--accent); color: #000; border-radius: 8px; text-decoration: none; font-weight: 600; }
.link { color: #8ab4f8; }
button.button { border: 0; cursor: pointer; }