/* Reset & base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

:root {
  --turquoise: #00f5f0;
  --coral: #ff6f61;
  --coral-dark: #ff4d3a;
  --text: #e8feff;
  --glass: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.25);
  --shadow: rgba(0, 255, 200, 0.35);
}

body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto;
  color: var(--text);
  line-height: 1.5;
  background: #04060b;
  background-image:
    radial-gradient(circle at 10% 0%, rgba(0, 255, 230, 0.25) 0%, transparent 40%),
    radial-gradient(circle at 85% 15%, rgba(255, 105, 180, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(0, 255, 230, 0.12) 0%, transparent 40%),
    linear-gradient(#04060b, #03060a);
  min-height: 100vh;
  padding: 1rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

:focus-visible {
  outline: 3px solid var(--turquoise);
  outline-offset: 2px;
  border-radius: 6px;
}

/* Layout */
main {
  display: grid;
  place-items: center;
  padding: 2rem 0;
}

.image-frame {
  width: min(92vw, 720px);
  aspect-ratio: 16 / 9;
  padding: 1rem;
  border-radius: 18px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 0 60px rgba(0, 255, 230, 0.35);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 12px;
  filter: saturate(1.03);
}

/* Footer / CTA */
footer {
  margin-top: 2rem;
  padding: 1rem;
  text-align: center;
}

.product-ad {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #eaffff;
  box-shadow: 0 6px 20px rgba(0, 255, 200, 0.25);
}
.product-ad h3 {
  font-size: 1rem;
  color: var(--coral);
  margin: 0;
}
.product-ad a { text-decoration: none; }
.product-ad a p {
  margin: 0;
  color: #0b1a1a;
  font-weight: 700;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 111, 97, 0.9);
  background: linear-gradient(135deg, rgba(0,0,0,0.0), rgba(0,0,0,0.08));
  box-shadow: 0 4px 16px rgba(255, 111, 97, 0.6);
  display: inline-block;
  transition: transform 0.2s ease;
}
.product-ad a:hover p,
.product-ad a:focus-visible p {
  transform: translateY(-1px);
}

footer p {
  margin-top: 0.75rem;
  color: #a6dbe0;
  font-size: 0.92rem;
  opacity: 0.9;
}

/* Responsive tweaks */
@media (min-width: 640px) {
  .image-frame { width: min(70vw, 900px); }
  footer { text-align: center; }
}
@media (min-width: 900px) {
  :root { font-size: 16px; }
  footer { display: flex; justify-content: center; gap: 2rem; align-items: center; padding: 1rem 0; }
  .image-frame { padding: 1.25rem; }
  main { padding: 3rem 2rem; }
}