:root {
  --bg: #0b1220;
  --card: rgba(255, 255, 255, 0.06);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.7);
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color: var(--text);
}

body {
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(900px 500px at 20% 10%, rgba(79, 70, 229, 0.35), transparent 60%),
    radial-gradient(900px 500px at 80% 20%, rgba(14, 165, 233, 0.28), transparent 60%),
    radial-gradient(900px 500px at 50% 90%, rgba(34, 197, 94, 0.18), transparent 60%),
    var(--bg);
}

.card {
  width: min(560px, 100%);
  padding: 40px 32px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  text-align: center;
}

.logo {
  width: 84px;
  height: 84px;
  display: inline-block;
  margin-bottom: 14px;
}

h1 {
  margin: 8px 0 8px;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 0;
  font-size: 16px;
  line-height: 1.5;
  color: var(--muted);
}

.divider {
  height: 1px;
  width: 100%;
  background: var(--border);
  margin: 24px 0;
}

.fineprint {
  margin: 0;
  color: rgba(255,255,255,0.55);
  font-size: 13px;
}