/* Light reset and base styles */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  padding: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial;
  color: #e9e0ff;
  background: linear-gradient(135deg, #0b4bd8 0%, #5b2bd6 50%, #1e0a3a 100%);
  /* Subtle glow and grid hints for cyberpunk vibe */
  background-attachment: fixed;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 15%, rgba(0,180,255,0.15), transparent 25%),
    radial-gradient(circle at 75% 85%, rgba(160,0,255,0.15), transparent 25%);
  pointer-events: none;
  mix-blend-mode: screen;
}
a { color: inherit; text-decoration: none; }

/* Layout scaffold (mobile-first) */
main {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  min-height: 60vh;
}
.image-frame {
  position: relative;
  width: min(92vw, 720px);
  aspect-ratio: 16 / 9;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 16px;
  padding: 12px;
  display: grid;
  align-items: center;
  justify-items: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow:
    0 20px 40px rgba(0,0,0,0.35),
    0 0 0 2px rgba(120, 0, 255, 0.25) inset;
  overflow: hidden;
}
.image-frame img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
  object-fit: cover;
  filter: saturate(1.05);
  /* subtle neon edge */
  box-shadow: 0 0 0 2px rgba(0,0,0,0.04);
}
.image-frame::after {
  content: "Enter the archive. Dare to scroll.";
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 12.5px;
  color: #eef0ff;
  background: rgba(4, 8, 20, 0.55);
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  pointer-events: none;
}

/* Footer with frosted glass ad block and CTA */
footer {
  padding: 1.5rem 1rem;
  display: grid;
  justify-items: center;
  gap: 0.75rem;
  color: #e9e0ff;
}
.product-ad {
  width: min(92vw, 760px);
  text-align: center;
  padding: 14px;
  border-radius: 14px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.25);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}
.product-ad h3 {
  margin: 0 0 6px 0;
  font-size: 1rem;
  color: #e6d4ff;
  letter-spacing: .4px;
}
.product-ad a { display: inline-block; }
.product-ad a p {
  margin: 0;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  background: linear-gradient(135deg, rgba(0, 168, 255, 0.95), rgba(120, 0, 255, 0.95));
  border: 1px solid rgba(255,255,255,0.8);
  box-shadow: 0 6px 18px rgba(0,0,0,0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.product-ad a p:hover,
.product-ad a p:focus {
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(0,0,0,0.5);
  outline: none;
}
footer p {
  font-size: 0.85rem;
  opacity: 0.92;
  margin: 0;
}

/* Focus accessibility */
:focus-visible {
  outline: 2px solid #8df;
  outline-offset: 2px;
  border-radius: 6px;
}
a:focus {
  outline: 2px solid #9af;
  outline-offset: 2px;
  border-radius: 6px;
}

/* Subtle neon glow for hacker vibe on interactive elements */
.product-ad a p {
  text-shadow: 0 0 8px rgba(255,255,255,0.25);
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* Desktop refinements for a more pronounced hero feel */
@media (min-width: 720px) {
  main {
    padding: 3rem 0;
  }
  .image-frame {
    width: min(720px, 60vw);
    border-radius: 20px;
    padding: 14px;
  }
  .image-frame::after {
    font-size: 13.5px;
  }
  footer { padding: 2rem 0; }
  .product-ad { padding: 16px; }
  .product-ad h3 { font-size: 1.05rem; }
}
```