/* Reset and base */
*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial, sans-serif;
  color: #eaffff;
  /* Cyan-to-violet hacker gradient background */
  background: linear-gradient(135deg, #00e5ff 0%, #00d6ff 25%, #7c3aed 60%, #6d28d9 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: #a8f0ff; text-decoration: none; }

main {
  width: 100%;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  flex: 1;
}

.image-frame {
  width: 100%;
  max-width: 860px;
  padding: 1rem;
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.45); /* frosted glass backdrop behind image */
  border: 1px solid rgba(110, 240, 255, 0.25);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
  display: flex;
  justify-content: center;
}

.image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

footer {
  padding: 1.5rem;
  display: grid;
  place-items: center;
  color: #e6faff;
}

.product-ad {
  display: grid;
  gap: 0.5rem;
  align-items: center;
  justify-items: center;
  width: min(92%, 720px);
  padding: 1rem;
  border-radius: 14px;
  background: rgba(8, 12, 28, 0.6); /* frosted glass feel */
  border: 1px solid rgba(140, 240, 255, 0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 6px 24px rgba(0,0,0,0.25);
  text-align: center;
}

.product-ad h3 {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.05rem;
  color: #b6fff9;
  letter-spacing: .5px;
}

.product-ad a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  text-decoration: none;
  background: linear-gradient(135deg, rgba(0, 239, 255, 0.95), rgba(138, 43, 226, 0.95));
  color: #041018;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,0.65);
  box-shadow: 0 6px 14px rgba(0,255,255,0.6);
}
.product-ad a:focus-visible {
  outline: 3px solid #00e5ff;
  outline-offset: 2px;
}
.product-ad a:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(0,255,255,0.8);
}
.product-ad a p { margin: 0; padding: 0; font: inherit; color: inherit; }

p { margin: 0.25rem 0; color: #d9f0ff; }

/* Focus accessibility for all links */
:focus-visible { outline: 3px solid #00e5ff; outline-offset: 2px; }

/* Responsive: mobile-first, then scale up for larger screens */
@media (min-width: 768px) {
  main { padding: 3rem 2rem; }
  .image-frame { padding: 1.25rem; }
  .product-ad { padding: 1.25rem; }
  footer { padding: 2rem 0; }
}