/* Reset & base */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  color: #fff;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  /* Teal sunset gradient + hacker glow */
  background: linear-gradient(135deg,
    #0a6f72 0%,
    #0bd6d0 40%,
    #7a1bd8 70%,
    #ff7a1f 100%);
  background-attachment: fixed;
}
a { color: inherit; text-decoration: none; }

/* Layout: mobile-first hero center, frosted glass image frame */
main {
  display: grid;
  place-items: center;
  padding: 4rem 1rem;
  min-height: 60vh;
}
.image-frame {
  width: min(92vw, 720px);
  border-radius: 16px;
  padding: 16px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.28);
  backdrop-filter: saturate(1.2) blur(6px);
  -webkit-backdrop-filter: saturate(1.2) blur(6px);
  box-shadow: 0 12px 40px rgba(0,0,0,.45);
}
.image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  filter: saturate(1.05);
}

/* Footer & product ad (frosted glass card) */
footer {
  padding: 20px 16px;
  text-align: center;
}
.product-ad {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.28);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  margin: 0 auto 8px;
}
.product-ad h3 {
  font-size: 0.95rem;
  margin: 0;
  color: #eaffff;
  text-shadow: 0 0 8px rgba(0,255,235,.6);
}
.product-ad a { color: inherit; text-decoration: none; }
.product-ad a p {
  margin: 0;
  font-weight: 700;
}
footer p {
  color: rgba(255,255,255,.85);
  font-size: .92rem;
  margin: 6px 0 0;
}

/* CTA utility (future-proof) */
.btn {
  display: inline-block;
  padding: 0.9rem 1.25rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.6);
  background: linear-gradient(135deg, rgba(0,255,235,.95), rgba(0,180,255,.95));
  color: #031d1d;
  color: #fff;
  font-weight: 700;
  letter-spacing: .2px;
  text-shadow: 0 1px 0 rgba(0,0,0,.15);
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(0,255,235,.6);
  transition: transform .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 3px solid #9ff; outline-offset: 2px; }

/* Responsive tweaks */
@media (min-width: 768px) {
  main { padding: 6rem 2rem; }
  .image-frame { padding: 20px; }
}
@media (min-width: 1024px) {
  footer { padding: 28px 0; }
  .product-ad { flex-direction: row; gap: 12px; }
}