:root {
  --bg: #0f1419;
  --panel: #1a222c;
  --border: #2e3a48;
  --text: #e8eef4;
  --muted: #8b9aab;
  --accent: #3d9cf0;
  --ok: #2f6b4f;
  --ok-border: #3a8561;
  --radius: 12px;
  --font: "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1100px 560px at 15% -10%, #1a3048 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #1f3324 0%, transparent 50%),
    var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.hero {
  width: min(420px, 100%);
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  backdrop-filter: blur(8px);
}

.hero h1 {
  margin: 0 0 0.35rem;
  font-size: 2rem;
}

.muted {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

.download-btn {
  display: block;
  text-decoration: none;
  border: 1px solid var(--ok-border);
  background: var(--ok);
  color: #fff;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font: inherit;
  font-weight: 600;
}

.download-btn:hover { filter: brightness(1.08); }

.login-link {
  display: inline-block;
  margin-top: 1.1rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.login-link:hover { color: var(--accent); }