/* Minimal reset and CSS variables for cyberpunk, neon-hacker vibe */
:root{
  --bg-dark: #0b0f14;
  --card: rgba(0,0,0,.28);
  --lime: #b9ff3d;
  --lime-soft: rgba(185,255,61,.25);
  --text: #eaffc1;
  --text-dim: #b7ffab;
  --accent: #00ff66;
  --border: rgba(0,255,150,.6);
}
*,
*::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;
  color: var(--text);
  background: var(--bg-dark);
  /* Yellow zigzag background pattern */
  background-image:
    linear-gradient(135deg, #f6d54b 25%, transparent 25%),
    linear-gradient(225deg, #f6d54b 25%, transparent 25%),
    linear-gradient(315deg, #f6d54b 25%, transparent 25%),
    linear-gradient(45deg, #f6d54b 25%, transparent 25%);
  background-size: 40px 40px;
  background-position: 0 0, 0 20px, 20px -20px, 20px 0;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
* { box-sizing: border-box; }

/* Layout primitives */
main {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  min-height: calc(100vh - 180px);
}
.image-frame {
  position: relative;
  width: 90%;
  max-width: 760px;
  margin: 2rem auto;
  padding: 1rem;
  border-radius: 16px;
  background: rgba(0,0,0,.28); /* frosted glass base */
  border: 1px solid rgba(0,255,150,.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 20px 60px rgba(0,255,150,.35);
  overflow: hidden;
}
.image-frame::after {
  content: "";
  position: absolute; inset: 0;
  border-radius: 16px;
  box-shadow: inset 0 0 80px rgba(0,255,120,.5);
  pointer-events: none;
}
.image-frame img {
  width: 100%; height: auto; display: block; border-radius: 12px;
  outline: 1px solid rgba(0,0,0,.15);
}
footer {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--text-dim);
  background: rgba(0,0,0,.15);
}
.product-ad {
  display: inline-block;
  text-align: center;
  padding: 14px;
  border-radius: 12px;
  background: rgba(0,0,0,.25); 
  border: 1px solid rgba(0,255,150,.6);
  margin: 0 auto 1rem;
}
.product-ad h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  color: #eaff6e;
  text-shadow: 0 0 6px rgba(0,255,120,.8);
}
.product-ad a { text-decoration: none; display: inline-block; width: 100%; }
.product-ad a p {
  margin: 0;
  padding: 10px 16px;
  border-radius: 999px;
  background: #141414;
  color: #eafff0;
  font-weight: 700;
  border: 1px solid rgba(0,255,150,.8);
  box-shadow: 0 0 12px rgba(0,255,120,.8);
}
a, a:visited { color: var(--lime); text-decoration: none; }
a:focus-visible {
  outline: 2px solid #9aff00;
  outline-offset: 2px;
  border-radius: 4px;
}
:focus { outline: 2px solid #9aff00; outline-offset: 2px; border-radius: 4px; }

/* Typography and subtle neon glow for accessibility on dark bg */
h1, h2, h3, h4, h5, h6 { color: #eaff88; text-shadow: 0 0 8px rgba(0,255,140,.6); }
p { color: #d8ffad; }

/* Responsive, mobile-first adjustments */
@media (min-width: 768px) {
  body { background-attachment: fixed; }
  main { padding: 3rem 2rem; min-height: calc(100vh - 240px); }
  .image-frame { width: 720px; }
}
@media (min-width: 1024px) {
  .image-frame { width: 860px; }
  footer { padding: 2.5rem 0; }
}