:root {
  --bg: #020617;
  --panel: #020617cc;
  --border: #1e293b;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #38bdf8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: radial-gradient(circle at top, #1e293b, var(--bg));
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  max-width: 720px;
  width: 100%;
  padding: 3rem 2rem;
}

.hero {
  margin-bottom: 2.5rem;
}

h1 {
  font-size: 3rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.02em;
}

.tagline {
  margin-top: .75rem;
  font-size: 1.05rem;
  color: var(--muted);
}

.card {
  background: linear-gradient(180deg, var(--panel), #020617);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.75rem;
  box-shadow: 0 20px 40px rgba(0,0,0,.45);

  /* Level 2 motion */
  transition: transform .35s ease, box-shadow .35s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 32px 70px rgba(0,0,0,.6);
}

.card h2 {
  margin-top: 0;
  font-size: 1.4rem;
  font-weight: 600;
}

.downloads {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0 0;
}

.downloads li {
  margin: .75rem 0;
}

a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

a:hover {
  text-decoration: und