:root {
  --teal: #27f0d1;
  --teal-dark: #12b7a3;
  --purple: #7a2cff;
  --bg: #0b0a14;
  --glass: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.25);
  --text: #eafff7;
}
/* Light reset */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; margin: 0; padding: 0; }

/* Global look: hacker/cyberpunk with purple diagonal lines and neon teal accents */
body {
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial;
  background-color: var(--bg);
  background-image: repeating-linear-gradient(135deg, rgba(127,0,255,.25) 0 2px, transparent 2px 40px);
  background-size: 40px 40px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout: mobile-first reading flow */
main {
  width: min(1100px, 92%);
  margin: 2rem auto;
}

.image-frame {
  border-radius: 20px;
  padding: 1rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(6px) saturate(1.2);
  -webkit-backdrop-filter: blur(6px) saturate(1.2);
  box-shadow: 0 20px 40px rgba(0,0,0,.5);
}
.image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

/* Frosted footer with a prominent CTA and product ad */
footer {
  margin-top: auto;
  padding: 1.5rem;
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  align-items: center;
  flex-wrap: wrap;
  background: rgba(10,10,20,.65);
  border-top: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.product-ad {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 14px;
  padding: .75rem 1rem;
  min-width: 240px;
  text-align: left;
}
.product-ad h3 {
  margin: 0 0 .25rem;
  font-size: 1rem;
  color: #9ff1e8;
  letter-spacing: .3px;
}
.product-ad a { text-decoration: none; display: inline-block; }
.product-ad a p {
  margin: 0;
  font-weight: 700;
  color: #001a15;
  padding: .5rem .9rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #00e6c8, #14e8d0);
  box-shadow: 0 6px 12px rgba(0,0,0,.35);
}
.product-ad a:hover p { transform: translateY(-1px); }
footer p {
  margin: .25rem 0 0;
  color: rgba(230,255,245,.8);
  font-size: .9rem;
}
a:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
  border-radius: 6px;
}

/* Responsive tweaks */
@media (min-width: 900px) {
  footer { justify-content: space-between; padding: 2rem 3rem; }
  .product-ad { min-width: 280px; }
}
@media (min-width: 720px) {
  main { margin: 2rem auto; }
}