/* Reset & base */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
html { font-size: 16px; }
body {
  margin: 0;
  color: #eaffff;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial;
  line-height: 1.55;
  min-height: 100vh;
  /* lime paper texture: subtle grain with grid hints */
  background-color: #d6f56a;
  background-image:
    linear-gradient(rgba(0,0,0,.04), rgba(0,0,0,.04)),
    linear-gradient(45deg, rgba(0,0,0,.04) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(0,0,0,.04) 25%, transparent 25%);
  background-size: 40px 40px, 40px 40px, 40px 40px;
  background-position: 0 0, 0 0, 0 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
main { display: grid; place-items: center; padding: 2rem 1rem; }

/* Frosted glass frame for the image / hero */
.image-frame {
  width: min(92vw, 720px);
  padding: 0.75rem;
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 20px 40px rgba(0,0,0,.35);
}
.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
}

/* Footer / product ad styling (neon cyberpunk feel) */
footer {
  margin-top: 2rem;
  padding: 1.5rem;
  text-align: center;
  color: rgba(230,255,255,.95);
  background: rgba(0,0,0,.15);
  border-top: 1px solid rgba(255,255,255,.15);
}
.product-ad {
  display: inline-block;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  background: rgba(0,255,255,.18);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid rgba(180,255,255,.5);
  margin-bottom: .75rem;
}
.product-ad h3 { font-size: 1rem; margin: 0 0 .25rem; color: #eaffff; }
.product-ad a {
  color: #9fffff;
  text-decoration: none;
  display: inline-block;
  padding: .4rem .8rem;
  border-radius: 8px;
  border: 1px solid rgba(180,255,255,.6);
  background: rgba(0,255,255,.25);
  transition: transform .2s ease, background .2s ease;
}
.product-ad a:hover { background: rgba(0,255,255,.4); transform: translateY(-1px); }

/* Focus styles for accessibility */
a:focus, button:focus, [href]:focus {
  outline: 3px solid #00fff0;
  outline-offset: 2px;
}
button, [role="button"] { cursor: pointer; }

/* Neon / cyberpunk hints on headings (when used) */
h1, h2, h3 { text-shadow: 0 0 8px rgba(0,255,255,.9); color: #eaffff; }

/* Responsive: mobile-first, scale up on larger screens */
@media (min-width: 700px) {
  main { padding: 3rem 2rem; }
  .image-frame { width: min(60vw, 720px); }
  footer {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    justify-items: start;
    text-align: left;
    padding: 2rem 3rem;
    gap: 2rem;
  }
  .product-ad { justify-self: start; }
}