* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  background: linear-gradient(140deg, #4f46e5 0%, #7c3aed 100%);
  color: #fff;
  line-height: 1.7;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 3rem 1rem;
}

.card {
  width: 100%;
  max-width: 44rem;
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 24px;
  box-shadow: 0 24px 60px rgba(30, 20, 90, 0.35);
  padding: 2.5rem 2.75rem;
  margin-bottom: 1.5rem;
}

.hero {
  text-align: center;
}

.hero img {
  width: 96px;
  height: 96px;
  margin-bottom: 1rem;
  filter: drop-shadow(0 12px 24px rgba(30, 20, 90, 0.4));
}

h1 {
  font-size: 2.2rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
}

.tagline {
  font-size: 1.15rem;
  opacity: 0.9;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 1.15rem;
  margin: 1.6rem 0 0.4rem;
}

p { margin-bottom: 0.9rem; }

.muted {
  font-size: 0.9rem;
  opacity: 0.75;
}

a { color: #fff; }

kbd {
  background: rgba(255, 255, 255, 0.92);
  color: #4f46e5;
  font-family: inherit;
  font-weight: 600;
  border-radius: 8px;
  padding: 0.15em 0.55em;
  box-shadow: 0 3px 0 rgba(30, 20, 90, 0.35);
}

.keys {
  margin: 1.2rem 0 0.4rem;
  font-size: 1.3rem;
}

footer {
  font-size: 0.9rem;
  opacity: 0.8;
}

footer a { margin: 0 0.5rem; }