:root{
  --bg: #000;
  --turq: #2ff0e0;
  --turq-dark: #14d3c7;
  --glass: rgba(255,255,255,.08);
  --stroke: rgba(0,255,235,.5);
  --text: #e7feff;
  --muted: rgba(231,255,255,.75);
  --focus: #1ef0e8;
  --shadow: 0 10px 25px rgba(0,0,0,.5);
}
*,
*::before,
*::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial;
  color: var(--text);
  background-color: #000;
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* Black geometric shapes background with turquoise accents */
  background-image:
    radial-gradient(circle at 12px 12px, rgba(0,255,230,.15) 0 4px, transparent 5px),
    radial-gradient(circle at 60px 24px, rgba(0,255,230,.10) 0 4px, transparent 5px),
    linear-gradient(135deg, rgba(0,0,0,.65) 25%, rgba(0,0,0,.25) 25%, rgba(0,0,0,.25) 50%, rgba(0,0,0,.65) 50%, rgba(0,0,0,.65) 75%, rgba(0,0,0,.25) 75%, rgba(0,0,0,.25) 100%),
    linear-gradient(45deg, rgba(0,0,0,.6), rgba(0,0,0,.6));
  background-size: 60px 60px, 60px 60px, 120px 120px, 100% 100%;
  background-attachment: fixed;
  background-blend-mode: overlay;
  overflow-x: hidden;
}

main {
  display: grid;
  place-items: center;
  padding: 6vmin 1rem;
  min-height: 60vh;
}

.image-frame {
  width: min(92vw, 780px);
  border-radius: 16px;
  padding: 1rem;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(0,255,235,.45);
  backdrop-filter: saturate(1.2) blur(8px);
  -webkit-backdrop-filter: saturate(1.2) blur(8px);
  box-shadow: 0 15px 40px rgba(0,0,0,.6);
  overflow: hidden;
}

.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  filter: saturate(1.05);
}

footer {
  text-align: center;
  padding: 1.75rem 1rem;
  color: var(--muted);
  background: rgba(0,0,0,.5);
  border-top: 1px solid rgba(0,255,235,.25);
}

.product-ad {
  display: inline-block;
  margin-bottom: .75rem;
  padding: .4rem;
  border-radius: 999px;
  background: rgba(0,0,0,.25);
  border: 1px solid rgba(0,255,235,.4);
}

.product-ad h3 {
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .2px;
  color: #bffbff;
  margin-bottom: .25rem;
}

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

.product-ad a p {
  display: inline-block;
  font-weight: 700;
  padding: .55rem 1rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #19f0e1 0%, #00d6e3 60%);
  color: #041f1a;
  margin: 0;
  transition: transform .2s ease, box-shadow .2s ease;
  border: 1px solid rgba(255,255,255,.15);
  box-shadow: inset 0 0 0 rgba(0,0,0,0);
}

.product-ad a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: 999px;
}

.product-ad a:hover p {
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(0, 255, 235, .5);
}

footer p {
  font-size: .9rem;
  margin-top: .4rem;
  color: rgba(230,255,255,.8);
}

/* Responsive tweaks */
@media (min-width: 768px) {
  main { padding: 8vmin 2rem; }
  .image-frame { border-radius: 20px; padding: 1.25rem; }
  .product-ad h3 { font-size: 1rem; }
}