/* Reset + base */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial;
  color: #e8e0d1;
  line-height: 1.5;
  background: linear-gradient(135deg, #061a31 0%, #0b1a30 40%, #1a1020 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem 0;
  min-height: 60vh;
}
.image-frame {
  width: min(92vw, 780px);
  border-radius: 18px;
  padding: 0.75rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 16px 60px rgba(0,0,0,.45);
  display: grid;
  place-items: center;
}
.image-frame img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
  filter: saturate(1.05) contrast(1.05);
  outline: 1px solid rgba(255,255,255,.15);
}

/* Footer / promo card (frosted glass / hacker vibe) */
footer {
  padding: 1.5rem 1rem 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  width: 100%;
}
.product-ad {
  width: min(92vw, 720px);
  padding: .9rem 1rem;
  border-radius: 14px;
  background: rgba(6,9,18,0.6);
  border: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: inset 0 0 40px rgba(0,0,0,.25), 0 6px 24px rgba(0,0,0,.4);
  color: #f7e9d9;
}
.product-ad h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 .5rem;
  color: #f6e0cc;
}
.product-ad a {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  padding: .7rem 1rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #8b5e2b 0%, #5a3a1a 100%);
  color: #fff;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,.25);
  font-weight: 700;
}
.product-ad a:focus-visible, .product-ad a:focus {
  outline: 2px solid #ffd29a;
  outline-offset: 2px;
}
.product-ad a:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(0,0,0,.5);
}
.product-ad p { margin: 0; padding: 0; }
.product-ad p:last-child { font-weight: 600; }

/* Links default treatment for accessibility */
a, button { color: inherit; text-decoration: none; outline: none; }

/* Focus ring for keyboard accessibility */
a:focus-visible, button:focus-visible {
  outline: 2px solid #ffd29a;
  outline-offset: 2px;
  border-radius: 6px;
}

/* Responsive tweaks (mobile-first) */
@media (min-width: 640px) {
  main { padding-top: 3rem; }
  .image-frame { border-radius: 22px; padding: 1rem; }
}
@media (min-width: 900px) {
  footer { padding-bottom: 4rem; }
  .product-ad { padding: 1.1rem 1.2rem; }
}