/* Reset and base styles */
*,
*::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, Arial;
  color: #0b1114;
  /* Silver gradient background with a turquoise cyberpunk accent feel */
  background: linear-gradient(135deg, #cbd5e1 0%, #e7eef5 50%, #cbd5e1 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout: mobile-first, hero-focused */
main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  min-height: calc(100vh - 180px);
}

/* Frosted glass image frame as hero */
.image-frame {
  position: relative;
  width: min(92%, 860px);
  background: rgba(255, 255, 255, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 20px;
  padding: 1.4rem;
  backdrop-filter: blur(8px) saturate(1.2);
  -webkit-backdrop-filter: blur(8px) saturate(1.2);
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}
.image-frame::before {
  content: "";
  position: absolute;
  left: -12px;
  top: -12px;
  right: -12px;
  bottom: -12px;
  border-radius: 24px;
  background: radial-gradient(circle at 50% 0%, rgba(46,232,212,0.25), transparent 40%);
  z-index: -1;
  filter: blur(6px);
  opacity: 0.9;
}
.image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.6);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

/* Footer with frosted glass product ad */
footer {
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.14);
  border-top: 1px solid rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.product-ad {
  background: rgba(0, 0, 0, 0.04);
  padding: 0.6rem 0.9rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.6);
}
.product-ad h3 {
  font-size: 0.98rem;
  margin: 0 0 6px;
  color: #043033;
}
.product-ad a {
  text-decoration: none;
  display: inline-block;
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #2ee8d4, #1abbb0);
  color: #041f1f;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.75);
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}
.product-ad a:hover { filter: brightness(1.05); }
.product-ad a:focus-visible {
  outline: 3px solid #2ee8d4;
  outline-offset: 2px;
}

p { margin: 0; }

/* Responsive adjustments */
@media (min-width: 700px) {
  main { min-height: 70vh; padding: 3rem; }
  .image-frame { padding: 1.6rem; }
}
@media (min-width: 1024px) {
  .image-frame { width: 60%; min-width: 520px; }
}