:root {
  --bg: #0b0f19;
  --card: rgba(255,255,255,0.08);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.65);
  --btn: rgba(255,255,255,0.92);
  --btnText: #0b0f19;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: radial-gradient(1200px 800px at 20% 0%, rgba(70,130,255,0.25), transparent),
              radial-gradient(900px 700px at 80% 20%, rgba(160,120,255,0.18), transparent),
              var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

.wrap {
  width: min(520px, calc(100% - 32px));
  padding: 26px 22px;
  border-radius: 18px;
  background: var(--card);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.10);
}

.title { margin: 0 0 6px 0; font-size: 22px; letter-spacing: 0.2px; }
.sub { margin: 0 0 18px 0; color: var(--muted); font-size: 14px; line-height: 1.4; }

.btn {
  width: 100%;
  display: block;
  text-align: center;
  border: 0;
  border-radius: 14px;
  padding: 14px 16px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  background: var(--btn);
  color: var(--btnText);
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

.hint { margin: 14px 0 0 0; color: var(--muted); font-size: 12px; }