*,
*::before,
*::after { box-sizing: border-box; }
html, body { padding: 0; margin: 0; }

:root {
  --cyan: #00e6ff;
  --bg: #0b1220;
  --glass: rgba(255,255,255,.08);
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color: #eaffff;
  background: linear-gradient(135deg, #0a1a2b 0%, #0b2a54 60%, #071a2a 100%);
  min-height: 100vh;
  line-height: 1.4;
  position: relative;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(0,210,255,.10), rgba(0,0,0,0) 40%),
    linear-gradient(135deg, rgba(0,0,0,.0) 40%, rgba(0,0,0,.12) 60%, rgba(0,0,0,.0) 100%);
  pointer-events: none;
  z-index: 0;
}

main {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  min-height: calc(100vh - 240px);
}

.image-frame {
  position: relative;
  width: min(92vw, 780px);
  aspect-ratio: 16 / 9;
  border-radius: 20px;
  padding: .5rem;
  background: linear-gradient(135deg, rgba(255,255,255,.14), rgba(255,255,255,.06));
  border: 1px solid rgba(0, 255, 255, .45);
  box-shadow: 0 18px 60px rgba(0,0,0,.45);
  overflow: hidden;
  backdrop-filter: blur(6px) saturate(1.2);
  -webkit-backdrop-filter: blur(6px) saturate(1.2);
  display: grid;
  place-items: center;
  /* Frosted glass feel accent */
}
.image-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(to bottom, rgba(0,255,255,.05) 0 2px, transparent 2px 4px);
  mix-blend-mode: overlay;
  pointer-events: none;
}
.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

footer {
  padding: 1.75rem 1rem;
  text-align: center;
  color: #ccfbff;
  background: linear-gradient(to top, rgba(2,8,16,.92), rgba(2,8,16,.60) 60%, rgba(2,8,16,.92));
  border-top: 1px solid rgba(0,255,255,.25);
}

.product-ad {
  display: inline-block;
  padding: .65rem .9rem;
  border-radius: 999px;
  background: rgba(0,255,255,.08);
  border: 1px solid rgba(0,255,255,.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  margin-bottom: .8rem;
}
.product-ad h3 {
  margin: 0 0 .4rem;
  font-size: .95rem;
  color: #b9ffff;
}
.product-ad a { text-decoration: none; color: inherit; }
.product-ad a p {
  margin: 0;
  padding: .45rem .9rem;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(0,230,255,.30), rgba(0,255,255,.40));
  color: #04151a;
  font-weight: 700;
  display: inline-block;
  border: 1px solid rgba(0,255,255,.65);
  text-shadow: 0 1px 0 rgba(255,255,255,.25);
}
footer p {
  margin: .5rem 0 0;
  font-size: .9rem;
  color: #a6f0ff;
}

/* Accessible focus styles for all focusable controls */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 6px;
}

@media (min-width: 640px) {
  main { padding: 3rem 2rem; min-height: calc(100vh - 260px); }
  .image-frame { width: min(70vw, 860px); }
}

@media (min-width: 1024px) {
  .image-frame { width: min(60vw, 980px); }
}