/* CSS: cyberpunk hacker theme with frosted glass, blue paper texture, responsive UI */

/* Reset and base */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  color: #e9e6ff;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background-color: #0b1027;
  /* blue paper texture: layered gradients + subtle noise stripes */
  background-image:
    radial-gradient(circle at 15% 10%, rgba(90,140,255,.15), transparent 40%),
    linear-gradient(135deg, rgba(28,8,90,.75), rgba(10,6,40,.75)),
    repeating-linear-gradient(90deg, rgba(255,255,255,.04) 0 2px, transparent 2px 6px);
  background-size: cover, cover, 100% 100%;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  line-height: 1.4;
}

/* Frosted glass containers */
.header-glass,
.image-frame,
footer {
  backdrop-filter: saturate(1.15) blur(6px);
  -webkit-backdrop-filter: saturate(1.15) blur(6px);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

/* Layout and typography */
header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 0.85rem 1rem;
  text-align: center;
  background: rgba(12, 8, 28, 0.66);
  border-bottom: 1px solid rgba(124, 58, 237, 0.4);
  box-shadow: 0 6px 20px rgba(0,0,0,.25);
}
header h1 {
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.15;
  letter-spacing: .02em;
  color: #efe6ff;
  text-shadow: 0 0 8px rgba(124, 58, 237, .6);
}
@media (min-width: 600px) {
  header h1 { font-size: 1.9rem; }
}

main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1rem;
  flex: 1 0 auto;
}

.image-frame {
  width: min(720px, 92%);
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.08);
  box-shadow: 0 20px 60px rgba(0,0,0,.55);
}
.image-frame img { width: 100%; height: auto; display: block; }

/* Footer with CTA styling */
footer {
  padding: 1.75rem 1rem;
  text-align: center;
  color: #e9e6ff;
  border-top: 1px solid rgba(124,58,237,.4);
  background: rgba(8,8,24,.65);
}
.product-ad {
  display: inline-block;
  padding: .5rem;
  border-radius: 12px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.25);
  margin: 0 auto 0.75rem;
}
.product-ad h3 { margin: 0 0 .25rem; font-size: .95rem; }
.product-ad a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .75rem 1.25rem;
  min-width: 190px;
  border-radius: 999px;
  text-decoration: none;
  color: #fff;
  font-weight: 700;
  background: linear-gradient(135deg, #3b0a6a, #0b3bd3);
  border: 1px solid rgba(0,0,0,.25);
  cursor: pointer;
  box-shadow: 0 6px 14px rgba(0,0,0,.5);
  transition: transform .15s ease, box-shadow .15s ease;
}
.product-ad a:hover { transform: translateY(-1px); box-shadow: 0 8px 18px rgba(0,0,0,.6); }
.product-ad a:focus-visible { outline: 3px solid #7dd3fc; outline-offset: 2px; }

footer p { margin: .25rem 0 0; font-size: .9rem; opacity: .95; }

/* Responsive tweaks */
@media (min-width: 900px) {
  main { padding: 2.5rem 1rem; }
  .image-frame { width: min(860px, 78%); }
  .product-ad a { min-width: 210px; }
} 

/* Focus visibility for keyboard users on all interactive elements */
:focus-visible { outline: 3px solid #7dd3fc; outline-offset: 2px; }