/* Global reset and cyberpunk base */
:root{
  --bg: #0a0a0f;
  --surface: rgba(255,255,255,0.08);
  --surface-border: rgba(255,255,255,0.22);
  --text: #e8eef7;
  --muted: #a6b3c6;
  --accent: #2ff0e3;
  --accent-dark: #00e5c6;
  --focus: #00f5ff;
}
*,
*::before,
*::after { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  min-height: 100%;
  color: var(--text);
  background: var(--bg);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto;
  line-height: 1.5;
  overflow-x: hidden;
  /* Silver waves background (light, accessible) */
  background-image:
    radial-gradient(circle at 15% 0%, rgba(230,240,255,.22) 0 8px, transparent 8px),
    radial-gradient(circle at 85% 40%, rgba(0,255,214,.18) 0 12px, transparent 12px),
    radial-gradient(circle at 60% 75%, rgba(180,190,210,.15) 0 14px, transparent 14px);
  background-size: 60px 60px, 90px 90px, 120px 120px;
  background-blend-mode: overlay;
  animation: silverWaves 16s linear infinite;
}
@keyframes silverWaves {
  0% { background-position: 0 0, 0 0, 0 0; }
  100% { background-position: 60px -20px, -40px 20px, 40px 40px; }
}

/* Mobile-first layout */
main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1rem 0.75rem;
  min-height: calc(100vh - 120px);
}
.image-frame {
  width: min(92vw, 900px);
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  backdrop-filter: blur(8px) saturate(120%);
  -webkit-backdrop-filter: blur(8px) saturate(120%);
  box-shadow: 0 14px 50px rgba(0,0,0,.55);
  overflow: hidden;
  /* subtle neon glow around frame for hacker vibe */
  position: relative;
}
.image-frame::after {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: 22px;
  pointer-events: none;
  border: 1px solid rgba(0, 255, 214, .25);
  box-shadow: 0 0 24px rgba(0,255,214,.25);
  mix-blend-mode: screen;
}
.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
  display: block;
  filter: saturate(1.05);
}
footer {
  padding: 1.25rem 1rem 2rem;
  text-align: center;
  color: var(--text);
}
.product-ad {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  padding: .9rem;
  width: min(92%, 680px);
  margin: 0.75rem auto;
  border-radius: 12px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.22);
  backdrop-filter: blur(6px);
  box-shadow: 0 8px 28px rgba(0,0,0,.4);
}
.product-ad h3 {
  margin: 0;
  font-size: 1rem;
  color: #e6fbff;
  letter-spacing: .2px;
}
.product-ad a { text-decoration: none; }
.product-ad a p {
  margin: 0;
  padding: .55rem 1rem;
  border-radius: 999px;
  font-weight: 800;
  color: #041714;
  background: linear-gradient(135deg, rgba(0,255,214,.85), rgba(0,0,0,.0));
  border: 1px solid rgba(0,214,214,.75);
  box-shadow: 0 6px 14px rgba(0,214,214,.45);
}
.product-ad a p:hover { transform: translateY(-1px); }
footer p {
  margin: .25rem 0 0;
  font-size: .85rem;
  color: var(--muted);
}

/* Focus and accessibility */
a, button {
  color: #bfefff;
}
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 6px;
}
a:hover { text-decoration: none; }

/* Responsiveness: expand hero and emphasize CTA on larger screens */
@media (min-width: 640px) {
  main { padding: 2.5rem 1.25rem 0.75rem; }
  .image-frame { width: min(86vw, 860px); }
}
@media (min-width: 1024px) {
  main { padding: 3rem 2rem 1.5rem; }
  .image-frame { width: min(70vw, 980px); }
  footer { padding-bottom: 2.5rem; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}