/* CSS - Cyberpunk hacker landing page (mobile-first, single stylesheet) */

/* Light reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* Theme variables (blue solid background + indigo accents) */
:root {
  --bg: #0b2b5c;            /* deep blue background */
  --indigo: #4f46e5;        /* indigo accent */
  --cyan: #00e5ff;           /* neon accent for focus */
  --glass: rgba(255, 255, 255, 0.08);
  --glass-strong: rgba(255, 255, 255, 0.14);
  --shadow: rgba(0, 0, 0, 0.45);
  --text: #eaf6ff;
}

html, body { height: 100%; }

/* Page base */
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.4;
}

/* Layout containers */
main {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 140px);
  padding: 2rem 1rem;
}

/* Frosted glass card for the hero image */
.image-frame {
  width: min(92vw, 720px);
  aspect-ratio: 16 / 9;
  display: grid;
  align-items: center;
  justify-items: center;
  background: var(--glass);
  border-radius: 20px;
  padding: 1.25rem;
  backdrop-filter: saturate(1.2) blur(8px);
  -webkit-backdrop-filter: saturate(1.2) blur(8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45), inset 0 0 0 1px rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255,255,255,0.18);
}

.image-frame img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
  filter: saturate(1.05);
  box-shadow: 0 6px 24px rgba(0,0,0,.25);
}

/* Footer with a cyberpunk ad block and copyright */
footer {
  width: 100%;
  padding: 1.75rem 1rem 1rem;
  margin-top: 1rem;
  border-top: 1px solid rgba(255,255,255,.08);
  background: rgba(8, 12, 40, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.product-ad {
  display: grid;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1rem;
  border-radius: 12px;
  background: rgba(255,255,255,.08);
}

.product-ad h3 {
  font-size: 0.95rem;
  margin: 0;
  color: #e8f4ff;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  text-shadow: 0 0 6px rgba(0, 229, 255, 0.6);
}

/* CTA styling - make the link look like a button for prominence */
.product-ad a { text-decoration: none; }
.product-ad a p {
  margin: 0;
  display: inline-block;
  padding: .75rem 1.25rem;
  border-radius: 999px;
  background: #1e3a8a;         /* indigo button */
  color: #fff;
  font-weight: 700;
  letter-spacing: .2px;
  box-shadow: 0 6px 14px rgba(0,0,0,.25);
  transition: transform .15s ease, box-shadow .15s ease;
}
.product-ad a p:hover { transform: translateY(-1px); box-shadow: 0 8px 18px rgba(0,0,0,.3); }

/* Focus visibility for accessibility */
a:focus-visible,
button:focus-visible,
.product-ad a:focus-visible,
.product-ad a p:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 999px;
}

/* Footer copyright text */
footer p {
  text-align: center;
  font-size: .9rem;
  opacity: .95;
  margin: .8rem 0 0;
  color: #cfe7ff;
}

/* Responsive tweaks (mobile-first) */
@media (min-width: 600px) {
  main { min-height: calc(100vh - 120px); padding: 2rem; }
  .image-frame { width: min(720px, 80vw); padding: 1.75rem; }
  .image-frame img { border-radius: 14px; }
}

@media (min-width: 900px) {
  footer {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding: 2rem 3rem;
  }
  .product-ad { justify-self: start; }
  footer p { grid-column: span 2; text-align: center; }
}