/* Reset light: box-sizing and basic margins */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
html { color-scheme: dark; }
body {
  margin: 0;
  padding: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, "Helvetica Neue", Arial;
  color: #eafff4;
  /* Green radial gradient background with hacker-neon vibe */
  background: radial-gradient(circle at 25% 20%, rgba(0,255,120,.28) 0%, rgba(0,128,0,.18) 25%, rgba(0,0,0,.85) 60%),
              radial-gradient(circle at 70% 60%, rgba(0,255,64,.12) 0%, rgba(0,0,0,0) 60%),
              #000;
  min-height: 100%;
  letter-spacing: .2px;
}

/* Layout: mobile-first, center the hero content */
main {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  min-height: 70vh;
}

/* Frosted glass "image-frame" hero card with neon accents */
.image-frame {
  width: 92vw;
  max-width: 860px;
  padding: 1.75rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, .08);
  backdrop-filter: blur(10px) saturate(1.8);
  border: 1px solid rgba(0, 255, 120, .4);
  box-shadow: 0 10px 40px rgba(0, 0, 0, .6);
  overflow: hidden;
}

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

/* Footer with prominent CTA styling */
footer {
  padding: 1.75rem 1rem;
  text-align: center;
  color: #d8ffd3;
}

/* Featured product CTA (styled as a bold button) */
.product-ad {
  display: inline-block;
  padding: .75rem 1rem;
  border-radius: 12px;
  background: rgba(0, 0, 0, .35);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(0, 255, 120, .4);
  margin-bottom: .75rem;
}

.product-ad h3 {
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  color: #afffb2;
  font-size: .95rem;
  letter-spacing: .3px;
  margin: 0 0 .25rem;
}

.product-ad a { text-decoration: none; display: inline-block; }

/* CTA button inside the link (note: HTML has <a><p>…</p></a>) */
.product-ad a p {
  margin: 0;
  padding: .65rem 1.1rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff2b2b 0%, #b40000 100%);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 0 12px rgba(255, 0, 0, .6);
  transition: transform .2s ease, box-shadow .2s ease;
}
.product-ad a:hover p,
.product-ad a:focus-visible p {
  transform: translateY(-1px);
  box-shadow: 0 0 16px rgba(255, 0, 0, .9);
}

/* Focus styles for accessibility on interactive elements */
a:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
  border-radius: 8px;
}

/* Subtle hero text polish to hint cyberpunk vibe */
h1, h2, h3 { color: #eafffb; text-shadow: 0 0 6px rgba(0, 255, 120, .6); }

/* Footer copy sizing */
footer p { margin: .5rem 0 0; font-size: .9rem; opacity: .9; }

/* Responsive tweaks for larger viewports */
@media (min-width: 600px) {
  main { padding: 2rem 0; }
  .image-frame { padding: 2rem; }
}
@media (min-width: 900px) {
  .image-frame { padding: 2.5rem; }
  .product-ad h3 { font-size: 1.05rem; }
}