:root {
  --bg1: #00e5ff;
  --bg2: #7b00ff;
  --bg3: #4b00ff;
  --glass: rgba(255,255,255,0.08);
  --stroke: rgba(255,255,255,0.28);
  --text: #e9f7ff;
  --acc: #00e5ff;
}

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

html, body { height: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial;
  color: var(--text);
  background: linear-gradient(135deg, var(--bg1) 0%, #2af0ff 12%, var(--bg2) 50%, var(--bg3) 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Content frame */
main {
  width: 100%;
  display: flex;
  justify-content: center;
  padding: 2rem 1rem;
  flex: 1 0 auto;
}

.image-frame {
  width: min(92%, 760px);
  padding: 1rem;
  border-radius: 20px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(8px) saturate(1.3);
  -webkit-backdrop-filter: blur(8px) saturate(1.3);
  box-shadow: 0 12px 40px rgba(0,0,0,.35), inset 0 0 60px rgba(0,255,255,.15);
}

.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.25);
  box-shadow: 0 0 0 rgba(0,0,0,0);
}

/* Footer / CTA */
footer {
  width: 100%;
  padding: 1.5rem 1rem;
  background: rgba(6, 4, 12, 0.65);
  border-top: 1px solid rgba(255,255,255,.08);
  color: #e8f5ff;
  display: flex;
  justify-content: center;
  gap: 2rem;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.product-ad { text-align: left; max-width: 720px; }

.product-ad h3 {
  font-size: 1rem;
  letter-spacing: .5px;
  color: #aaf3ff;
  margin-bottom: .5rem;
}

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

.product-ad a p {
  display: inline-block;
  padding: .75rem 1.15rem;
  border-radius: 999px;
  background: rgba(0, 255, 255, 0.25);
  color: #041b28;
  font-weight: 700;
  border: 1px solid rgba(0, 255, 255, 0.7);
  transition: transform .15s ease, background .15s ease;
  box-shadow: 0 6px 16px rgba(0,255,255,.55);
}

.product-ad a:hover p,
.product-ad a:focus-visible p {
  transform: translateY(-1px);
  background: rgba(0, 255, 255, 0.45);
}

.product-ad a:focus-visible p {
  outline: 2px solid #00e5ff;
  outline-offset: 2px;
}

footer p {
  text-align: center;
  width: 100%;
  margin-top: .75rem;
  font-size: .9rem;
  opacity: .8;
}

/* Focus accessibility for links in this page */
a:focus-visible {
  outline: 2px solid #00e5ff;
  outline-offset: 2px;
  border-radius: 6px;
}

/* Responsive tweaks */
@media (min-width: 768px) {
  main { padding: 3rem 2rem; }
  .image-frame { padding: 1.25rem; }
  footer { padding: 2rem 1rem; justify-content: center; }
  .product-ad { text-align: left; }
}

@media (min-width: 1024px) {
  footer { justify-content: center; }
}