/* Reset and base */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
:root {
  --bg: #0a0320;
  --glass: rgba(255,255,255,.10);
  --glass-border: rgba(255,255,255,.28);
  --text: #e9e0ff;
  --pink: #ff3b9b;
  --purple: #7c5cff;
}
html, body { margin: 0; }

body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto;
  color: var(--text);
  background-color: var(--bg);
  /* Pink zigzag background (future cyberpunk vibe) */
  background-image:
    linear-gradient(135deg, rgba(255,0,150,.15) 25%, transparent 25% 50%, rgba(255,0,150,.15) 50% 75%, transparent 75% 100%),
    linear-gradient(315deg, rgba(255,0,150,.15) 25%, transparent 25% 50%, rgba(255,0,150,.15) 50% 75%, transparent 75% 100%);
  background-size: 40px 40px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout sections */
main {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  flex: 1 0 auto;
}

.image-frame {
  width: min(92vw, 900px);
  aspect-ratio: 16 / 9;
  border-radius: 20px;
  padding: 12px;
  margin: 0 auto;
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.28);
  backdrop-filter: saturate(1.2) blur(6px);
  -webkit-backdrop-filter: saturate(1.2) blur(6px);
  box-shadow:
    0 8px 28px rgba(0,0,0,.55),
    0 0 22px rgba(120,0,255,.40) inset;
  position: relative;
  overflow: hidden;
}
.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 14px;
  filter: saturate(1.05) contrast(1.05);
}
.image-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: 0 0 22px rgba(180, 90, 255, .6) inset;
  mix-blend-mode: screen;
  opacity: .8;
}

/* Footer & call-to-action styling (CTA as prominent button) */
footer {
  padding: 1.25rem 1rem;
  margin-top: auto;
  background: rgba(10, 0, 20, .25);
  border-top: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.product-ad {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: .8rem 1rem;
  border-radius: 12px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.25);
}
.product-ad h3 {
  margin: 0;
  font-size: .95rem;
  color: #ffd9f9;
}
.product-ad a {
  display: inline-block;
  padding: .55rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  color: #fff;
  font-weight: 700;
  background: linear-gradient(135deg, #8c22ff, #ff2bd0);
  border: 1px solid rgba(255,255,255,.6);
  box-shadow: 0 6px 16px rgba(0,0,0,.25);
  transition: transform .2s ease, box-shadow .2s ease;
}
.product-ad a:hover,
.product-ad a:focus {
  transform: translateY(-1px);
  outline: none;
  box-shadow: 0 8px 20px rgba(0,0,0,.35);
}
.product-ad a:focus-visible {
  outline: 3px solid #ffd9f0;
  outline-offset: 2px;
}
footer p {
  text-align: center;
  margin: 0.6rem 0 0;
  color: rgba(230,230,250,.9);
  font-size: .85rem;
}

/* Focus accessibility for keyboard users on any focusable element */
:focus-visible {
  outline: 3px solid #ffd9f0;
  outline-offset: 2px;
  border-radius: 6px;
}

/* Responsive tweaks */
@media (min-width: 640px) {
  main { padding: 3rem 2rem; }
  .image-frame { border-radius: 24px; padding: 14px; }
  .image-frame img { border-radius: 18px; }
  .product-ad { grid-template-columns: auto 1fr; }
}
@media (min-width: 1024px) {
  main { padding: 4rem 2rem; }
  .image-frame { width: min(860px, 80vw); }
  footer { padding: 1.75rem 2rem; }
}