:root {
  --bg: #050b14;
  --panel: #081522;
  --text: #ffffff;
  --muted: #8fa4b8;
  --accent: #00a8ff;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  font-family: "Segoe UI", Bahnschrift, sans-serif;
  color: var(--text);
  background: radial-gradient(900px 480px at 20% 0%, rgba(0, 168, 255, 0.16), transparent 55%),
    linear-gradient(180deg, #07111f, var(--bg));
}

.glow {
  position: fixed;
  inset: auto -120px -160px auto;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0, 102, 255, 0.22), transparent 70%);
  pointer-events: none;
}

main.card {
  max-width: 720px;
  margin: 12vh auto;
  padding: 40px 36px 48px;
  background: color-mix(in srgb, var(--panel) 86%, transparent);
  border: 1px solid rgba(0, 168, 255, 0.18);
  border-radius: 24px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  text-align: center;
}

.logo {
  width: min(100%, 420px);
  height: auto;
  background: transparent;
}

.kicker {
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
  font-size: 12px;
  margin: 18px 0 8px;
}

h1 {
  font-size: clamp(40px, 8vw, 64px);
  margin: 0 0 12px;
  letter-spacing: 0.04em;
}

.lead {
  color: var(--muted);
  line-height: 1.55;
  margin: 0 auto 28px;
  max-width: 38em;
}

.version {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(0, 168, 255, 0.35);
  color: var(--accent);
  margin: 0 0 18px;
}

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