*,
*:before,
*:after {
  box-sizing: border-box;
}
html, body {
  height: 100%;
}
:root {
  --turquoise: #2af0d0;
  --turq-dark: #12d0c6;
  --lime: #b6ff00;
  --bg: rgba(255,255,255,.12);
  --glass: rgba(10,28,28,.55);
  --border: rgba(0,255,170,.6);
}
html { font-size: 16px; }
body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  color: #eafff5;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background: linear-gradient(135deg, #14e0d8 0%, #2aff9a 40%, #7aff4f 100%);
}
main {
  width: min(92%, 1100px);
  margin: 48px auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(0, 255, 170, 0.4);
  backdrop-filter: saturate(1.25) blur(8px);
  box-shadow: 0 12px 40px rgba(0,0,0,.25);
}
.image-frame {
  width: 100%;
  max-width: 720px;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(0, 255, 170, 0.6);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(6px);
  box-shadow: 0 20px 40px rgba(0,0,0,.25);
}
.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform .3s ease;
}
.image-frame:hover img { transform: scale(1.02); }

footer {
  width: min(92%, 1100px);
  margin: 28px auto 40px;
  padding: 14px 12px;
  text-align: center;
}
.product-ad {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  margin: 0 auto 6px;
  width: min(90%, 520px);
  border-radius: 12px;
  background: rgba(2, 12, 12, 0.32);
  border: 1px solid rgba(0, 255, 170, 0.45);
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.05), 0 8px 24px rgba(0,0,0,.25);
}
.product-ad h3 {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.95rem;
  color: #b7ffd6;
  text-shadow: 0 0 6px rgba(0,255,170,.8);
}
.product-ad p {
  margin: 0;
  color: #d7fff0;
}
.product-ad a {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  color: #001d12;
  background: linear-gradient(135deg, rgba(0,255,170,0.95) 0%, rgba(0,200,120,0.85) 100%);
  border: 1px solid rgba(0,0,0,.15);
  transition: transform .2s ease, box-shadow .2s ease;
}
.product-ad a:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(0,255,170,.6);
}
.product-ad a:focus-visible {
  outline: 3px solid #2affb7;
  outline-offset: 2px;
}
footer p {
  margin: 6px 0 0;
  color: #ccffea;
  font-size: 0.9rem;
}

@media (min-width: 768px) {
  main { padding: 32px; margin: 72px auto; }
  .image-frame { max-width: 860px; }
  .product-ad { width: 60%; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}