:root {
  --bg: #0a0a14;
  --text: #e8e1ff;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-strong: rgba(255, 255, 255, 0.14);
  --violet-1: #7c3aed;
  --violet-2: #8b5cf6;
  --violet-3: #a855f7;
  --shadow: 0 6px 20px rgba(124, 58, 237, 0.6);
}

*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: var(--text);
  background: var(--bg);
  /* purple dot pattern background (mobile-first, subtle) */
  background-image:
    radial-gradient(circle at 1px 1px, rgba(124, 58, 237, 0.6) 1px, transparent 1px),
    radial-gradient(circle at 12px 12px, rgba(139, 92, 246, 0.5) 1px, transparent 1px);
  background-size: 24px 24px, 24px 24px;
  background-position: 0 0, 12px 12px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 70vh;
  padding: 2rem 1rem;
  position: relative;
  z-index: 0;
  /* subtle cyber glow around the hero */
  text-shadow: 0 0 1px rgba(0,0,0,.2);
}
main::after {
  content: "";
  position: absolute;
  inset: -2rem;
  background: radial-gradient(circle at 60% -10%, rgba(124,58,237,.15), transparent 40%),
              radial-gradient(circle at -10% 60%, rgba(138, 43, 226, .12), transparent 40%);
  filter: blur(0.5px);
  pointer-events: none;
  z-index: -1;
}

.image-frame {
  width: 100%;
  max-width: 760px;
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 16px;
  padding: 1rem;
  backdrop-filter: blur(6px) saturate(1.05);
  -webkit-backdrop-filter: blur(6px) saturate(1.05);
  box-shadow: var(--shadow);
  transition: transform 0.25s ease;
}
.image-frame:hover { transform: translateY(-1px); }

.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  image-rendering: crisp-edges;
  border: 1px solid rgba(255,255,255,.25);
}

footer {
  padding: 1.75rem 1rem;
  text-align: center;
  color: #f2eaff;
  background: linear-gradient(to top, rgba(0,0,0,.65), rgba(0,0,0,.15));
  border-top: 1px solid rgba(255,255,255,.15);
}

.product-ad {
  display: inline-block;
  padding: .6rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  margin-bottom: .8rem;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.product-ad:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(0,0,0,.25); }

.product-ad h3 { margin: 0 0 .5rem 0; font-size: 1rem; letter-spacing: .3px; }

.product-ad a {
  text-decoration: none;
  color: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .65rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: linear-gradient(135deg, rgba(124,58,237,0.95), rgba(139,92,246,0.95));
  color: #fff;
  font-weight: 700;
  box-shadow: 0 0 0 rgba(0,0,0,0);
}
.product-ad a:focus-visible {
  outline: 2px solid #93c5fd;
  outline-offset: 2px;
}
.product-ad a:hover { transform: translateY(-1px); }

.product-ad p { margin: 0; }

footer p { margin: 0.25rem 0 0; opacity: .9; }

@media (min-width: 640px) {
  main { min-height: 78vh; padding: 3rem 1.25rem; }
  .image-frame { padding: 1.25rem; max-width: 820px; border-radius: 18px; }
}

@media (min-width: 1024px) {
  main { padding: 4rem 2rem; }
  .image-frame { border-radius: 20px; padding: 1.5rem; }
}