*,
*::before,
*::after { box-sizing: border-box; }
html, body { height: 100%; }

:root {
  --teal: #17e2c0;
  --teal-dark: #0fb7a3;
  --maroon: #320000;
  --maroon-dark: #190000;
  --glass: rgba(255,255,255,.08);
  --border: rgba(255,255,255,.25);
  --shadow: 0 8px 28px rgba(0,0,0,.25);
}

html, body { margin: 0; }
body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: #eafff7;
  background-color: var(--maroon);
  /* maroon diagonal lines background with subtle hacker vibe */
  background-image:
    linear-gradient(135deg, rgba(0,0,0,.25) 0, rgba(0,0,0,.25) 50%, rgba(0,0,0,0) 50%),
    repeating-linear-gradient(135deg,
      rgba(60,0,0,.25) 0 10px,
      rgba(0,0,0,0) 10px 20px);
  background-size: cover;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  /* subtle neon glow edge for futurist feel */
  text-shadow: 0 0 0 transparent;
  line-height: 1.5;
}

/* Hero-like center stage for mobile-first layout */
main {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

/* Frosted glass card around the image to create hacker/frosted glass aesthetic */
.image-frame {
  width: min(92vw, 720px);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 20px;
  padding: 1rem;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,.4);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

/* Footer with a clearly visible CTA styling */
footer {
  margin-top: auto;
  padding: 1.5rem 1rem;
  text-align: center;
  color: #d7fff7;
  background: linear-gradient(to top, rgba(0,0,0,.0), rgba(0,0,0,.08));
}

/* Product Ad area styled as a prominent CTA chip */
.product-ad {
  display: inline-block;
  padding: .6rem .9rem;
  border-radius: 999px;
  background: rgba(0,0,0,.25);
  border: 1px solid rgba(0, 255, 230, 0.6);
  margin-bottom: .75rem;
}

.product-ad h3 {
  font-size: 1rem;
  margin: 0 0 .25rem 0;
  color: #a6fff3;
}

.product-ad a {
  text-decoration: none;
  color: #001f1e;
  display: inline-flex;
  align-items: center;
  padding: .5rem 1rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #0bd6b2 0%, #06b59a 100%);
  border: 1px solid rgba(255,255,255,.75);
  font-weight: 600;
  box-shadow: 0 6px 14px rgba(0,0,0,.35);
  transition: transform .2s ease, box-shadow .2s ease;
}
.product-ad a:hover { transform: translateY(-1px); box-shadow: 0 8px 18px rgba(0,0,0,.45); }
.product-ad a:focus-visible { outline: 3px solid #8ff3e9; outline-offset: 2px; }

/* Layered focus for all links for accessibility */
a:focus-visible { outline: 3px solid #8ff3e9; outline-offset: 2px; }

/* Tiny footer text tweak for legibility on dark background */
footer p { font-size: .9rem; opacity: .9; margin: .5rem 0 0 0; }

/* Responsive adjustments */
@media (min-width: 768px) {
  main { padding: 3rem 2rem; }
  .image-frame { width: min(700px, 60vw); padding: 1.25rem; }
}

@media (min-width: 1024px) {
  body { background-attachment: fixed; }
  .image-frame { border-radius: 28px; padding: 1.5rem; }
}