/* Neon cyberpunk, hacker-theme CSS (mobile-first, single stylesheet) */
:root{
  --bg: #0b0f1a;
  --surface: rgba(255,255,255,.08);
  --surface-2: rgba(255,255,255,.12);
  --text: #eaffff;
  --muted: #bfefff;
  --turq: #2ee3d6;
  --turq-dark: #1bd0c7;
  --border: rgba(255,255,255,.28);
  --shadow: 0 20px 40px rgba(0,0,0,.5);
  --radius: 14px;
}

*,
*::before,
*::after { box-sizing: border-box; }

/* Light reset for margins/padding (kept minimal) */
html, body { height: 100%; }
body {
  margin: 0;
  padding: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto;
  color: var(--text);
  background-color: var(--bg);
  /* white dots background pattern */
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.65) 1px, transparent 1px),
    radial-gradient(circle at 4px 4px, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 12px 12px, 12px 12px;
  background-position: 0 0, 4px 4px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Layout: hero-like main and frosted glass framing for content */
main {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  min-height: calc(100vh - 180px);
}

.image-frame {
  width: min(92vw, 860px);
  border-radius: 16px;
  overflow: hidden;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.28);
  backdrop-filter: saturate(1.2) blur(8px);
  box-shadow: var(--shadow);
  transition: transform .25s ease;
}
.image-frame:hover { transform: scale(1.01); }

.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  image-rendering: -webkit-optimize-contrast;
}

/* Footer with a glassy product ad CTA */
footer {
  padding: 1.5rem;
  text-align: center;
  color: #a1f0ff;
  background: linear-gradient(to top, rgba(0,0,0,.25), rgba(0,0,0,.05));
}

.product-ad {
  display: inline-block;
  padding: .6rem 0.75rem;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.28);
  backdrop-filter: blur(6px);
  margin-bottom: .75rem;
}
.product-ad h3 {
  margin: 0 0 .25rem;
  font-size: .95rem;
  color: #e6fffa;
  letter-spacing: .5px;
}
.product-ad a { text-decoration: none; }
.product-ad a p {
  display: inline-block;
  padding: .5rem 1rem;
  border-radius: 999px;
  color: #04131a;
  background: linear-gradient(135deg, var(--turq), #19b3a1);
  border: 1px solid rgba(0,0,0,.25);
  font-weight: 700;
  font-size: .95rem;
  margin: 0;
  transition: transform .2s ease, box-shadow .2s ease;
  box-shadow: 0 6px 14px rgba(0,0,0,.25);
}
.product-ad a p:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(0,0,0,.35);
}
.product-ad a:focus-visible {
  outline: 3px solid var(--turq);
  outline-offset: 2px;
}
footer p { margin: .25rem 0 0; font-size: .85rem; color: #8fe9ff; }

/* Accessibility: focus styles for keyboard navigation */
:focus-visible {
  outline: 3px solid var(--turq);
  outline-offset: 2px;
  border-radius: 6px;
}
a { color: var(--turq); }

/* Responsive: optimize layout for larger screens */
@media (min-width: 768px) {
  main { padding: 3rem 2rem; }
  .image-frame { width: min(70vw, 900px); }
  footer { padding: 2rem; }
}
@media (min-width: 1024px) {
  .image-frame { width: min(60vw, 980px); }
  footer { padding: 2.5rem; }
}