*,
*::before,
*::after { box-sizing: border-box; }
:root {
  --bg: #0a0b15;
  --violet: #7c3aed;
  --cyan: #1ef3ff;
  --text: #e6f7ff;
  --soft-text: #b9d8ff;
  --glass: rgba(255,255,255,.08);
  --glass-border: rgba(255,255,255,.25);
}
html, body { height: 100%; }
body {
  margin: 0;
  color: var(--text);
  background: #0a0b15;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  line-height: 1.5;
  overflow-x: hidden;
  position: relative;
}
/* Cyan waves + violet hacker vibe background */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(0, 255, 255, .28) 0 18px, transparent 19px),
    radial-gradient(circle at 65% 12%, rgba(0, 255, 255, .22) 0 22px, transparent 23px),
    linear-gradient(135deg, rgba(50,0,60,.9) 0%, rgba(0,0,0,.6) 60%, rgba(12,5,60,.9) 100%);
  background-blend-mode: screen;
  z-index: -1;
  filter: saturate(1.1);
  animation: drift 22s linear infinite;
  pointer-events: none;
}
@keyframes drift {
  0% { transform: translate3d(0,0,0); }
  50% { transform: translate3d(-6px,6px,0); }
  100% { transform: translate3d(0,0,0); }
}
main {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  min-height: calc(100vh - 120px);
}
.image-frame {
  width: min(92vw, 1100px);
  aspect-ratio: 16 / 9;
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.25);
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  outline: 2px solid rgba(0, 230, 255, .15);
}
.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(1.05);
}
.image-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(124,58,237,.25), transparent 40px),
              radial-gradient(circle at 20% 70%, rgba(0,255,255,.25), transparent 40px);
  mix-blend-mode: screen;
  pointer-events: none;
  filter: blur(.5px);
}
footer {
  width: 100%;
  text-align: center;
  padding: 1rem 1rem 2rem;
  color: #e7f7ff;
  background: rgba(6, 4, 18, .6);
  border-top: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.product-ad {
  display: inline-block;
  padding: .5rem;
  border-radius: 14px;
  margin: 0.5rem 0 0;
  background: rgba(10, 6, 40, .6);
  border: 1px solid rgba(124,58,237,.55);
  box-shadow: 0 6px 20px rgba(0,0,0,.25);
}
.product-ad h3 {
  font-size: 1rem;
  margin: 0 0 .25rem;
  color: #b7f7ff;
  text-shadow: 0 0 6px rgba(0, 230, 255, .8);
}
.product-ad a {
  display: inline-block;
  text-decoration: none;
  color: #d3feff;
}
.product-ad a p {
  margin: 0;
  font-weight: 700;
  letter-spacing: .2px;
  color: #d6fffe;
}
.product-ad a:hover,
.product-ad a:focus {
  color: #fff;
  outline: 2px solid #00eaff;
  outline-offset: 2px;
}
.product-ad a {
  padding: .6rem 1.1rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 230, 255, .6);
  background: linear-gradient(135deg, rgba(0,230,255,.15), rgba(124,58,237,.15));
  transition: transform .15s ease, background .15s ease;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-weight: 700;
}
.product-ad a:hover { transform: translateY(-1px); background: linear-gradient(135deg, rgba(0,230,255,.25), rgba(124,58,237,.25)); }
footer p {
  margin: .5rem 0 0;
  font-size: .9rem;
  color: #cfeaff;
  opacity: .95;
}
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid #00e5ff;
  outline-offset: 2px;
  border-radius: 6px;
}
@media (min-width: 768px) {
  main { padding: 4rem 2rem; min-height: calc(100vh - 140px); }
  .image-frame { width: min(860px, 60vw); aspect-ratio: 16 / 9; }
  footer { padding: 1.5rem 0 2rem; }
}
@media (min-width: 1024px) {
  .image-frame { width: min(860px, 50vw); }
  .product-ad { margin-top: 1rem; }
}