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

html, body { height: 100%; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: #f8f5e6;
  background-color: #2b1f14;
  /* brown grid paper background (golden grid lines) */
  background-image:
    linear-gradient(to right, rgba(214, 170, 60, 0.25) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(214, 170, 60, 0.25) 1px, transparent 1px);
  background-size: 28px 28px;
}

main {
  padding: 1rem;
  display: grid;
  place-items: center;
  min-height: calc(100vh - 160px);
}

.image-frame {
  width: min(92vw, 720px);
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
  position: relative;
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  /* subtle color punch for hacker vibe */
  filter: saturate(1.05);
}

.image-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  /* light vignette along bottom for depth */
  background: linear-gradient(to bottom, rgba(0,0,0,0) 60%, rgba(0,0,0,0.28) 100%);
  pointer-events: none;
  mix-blend-mode: multiply;
}

footer {
  padding: 1rem;
  display: grid;
  justify-items: center;
  gap: 0.75rem;
}

.product-ad {
  display: grid;
  gap: 0.4rem;
  padding: 0.7rem 1rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  align-items: center;
}

.product-ad h3 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin: 0;
  color: #f2c669;
  text-shadow: 0 0 6px rgba(242, 198, 105, 0.65);
}

.product-ad a {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(246, 210, 130, 0.95), rgba(198, 140, 40, 0.95));
  color: #2a1600;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.85);
}
.product-ad a:hover { transform: translateY(-1px); box-shadow: 0 6px 14px rgba(0,0,0,0.25); }
.product-ad a:focus-visible { outline: 3px solid #ffd56e; outline-offset: 2px; }
.product-ad a p { margin: 0; }

footer p {
  margin: 0.25rem 0 0;
  color: rgba(248, 239, 212, 0.95);
  font-size: 0.92rem;
  text-align: center;
}

@media (min-width: 768px) {
  main { padding: 2rem; }
  .image-frame { width: min(80vw, 900px); border-radius: 20px; }
}

@media (min-width: 1024px) {
  .image-frame { width: min(65vw, 1000px); }
  footer { padding: 2rem; }
  body { font-size: 16px; }
}