/* Minimal reset and base styles (mobile-first) */
*, *::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;
  background-color: #0b1117;
  color: #eaffff;
  /* Teal geometric background with blue cyberpunk accents */
  background-image:
    radial-gradient(circle at 20% 10%, rgba(20, 190, 190, 0.22) 0 120px, transparent 120px),
    radial-gradient(circle at 75% 60%, rgba(0, 120, 200, 0.26) 0 140px, transparent 140px),
    conic-gradient(from 180deg at 60% 0%, rgba(0, 170, 200, 0.18), rgba(0, 100, 180, 0.18) 90deg, rgba(0, 170, 200, 0.18) 180deg, rgba(0, 100, 180, 0.18) 270deg, rgba(0, 170, 200, 0.18) 360deg),
    linear-gradient(135deg, rgba(8, 29, 41, 0.95), rgba(8, 29, 41, 0.75) 60%, rgba(4, 17, 28, 0.85) 100%);
  background-blend-mode: overlay, overlay, normal, normal;
}
a { color: inherit; text-decoration: none; }

/* Page container layout */
main {
  display: grid;
  place-items: center;
  min-height: 68vh;
  padding: 1.25rem;
}

/* Frosted glass image frame (hero) */
.image-frame {
  width: min(92vw, 860px);
  border-radius: 20px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: saturate(110%) blur(6px);
  -webkit-backdrop-filter: saturate(110%) blur(6px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  outline: 1px solid rgba(255,255,255,.15);
}
.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  /* subtle neon edge around the image for hacker vibe */
  filter: saturate(110%);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.0);
}
@media (min-width: 768px) {
  main { min-height: 72vh; padding: 2rem; }
  .image-frame { width: min(860px, 70vw); border-radius: 22px; }
}
@media (min-width: 1024px) {
  main { padding: 3rem; }
}

/* Footer with frosted, cyber UI feel */
footer {
  margin-top: 2rem;
  padding: 1.25rem;
  text-align: center;
  color: #d9f2ff;
  background: rgba(8, 18, 28, 0.65);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.product-ad {
  display: inline-block;
  padding: 0;
  margin-bottom: 0.5rem;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(0, 180, 240, 0.95), rgba(0, 120, 200, 0.95));
  box-shadow: 0 6px 16px rgba(0,0,0,.35);
}
.product-ad h3 {
  margin: 0;
  padding: 0.55rem 1rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: #eaffff;
}
.product-ad a {
  display: inline-block;
  padding: 0.5rem 1rem;
  color: #0b1a22;
  font-weight: 700;
  text-decoration: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #7ee6ff 0%, #4ea8ff 100%);
  border: 1px solid rgba(255,255,255,.6);
  margin: 0.25rem 0 0.25rem 0;
  transition: transform .2s ease, box-shadow .2s ease;
}
.product-ad a:hover { transform: translateY(-1px); box-shadow: 0 8px 18px rgba(0,0,0,.25); }
.product-ad a:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}
footer p {
  margin: 0.25rem 0 0;
  font-size: 0.85rem;
  color: #cfefff;
  opacity: 0.95;
}

/* Focus styles for accessibility on all focusable elements */
:focus-visible {
  outline: 2px solid #7dd3fc;
  outline-offset: 2px;
  border-radius: 4px;
}
button, input, textarea, [tabindex] { outline: none; }

/* Small helper for high-contrast CTA if a button is added later */
.btn {
  display: inline-block;
  padding: 0.65rem 1.2rem;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.5);
  background: linear-gradient(135deg, rgba(0, 120, 200, 0.95), rgba(0, 180, 240, 0.95));
  color: #04121a;
  font-weight: 700;
  text-shadow: 0 1px 0 rgba(255,255,255,.65);
  box-shadow: 0 6px 14px rgba(0,0,0,.25);
}
.btn:hover { transform: translateY(-1px); }

```