/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; padding: 0; margin: 0; }

/* Theme: silver paper texture + blue hacker aesthetic */
:root {
  --bg: #0b0f1a;
  --glass: rgba(255,255,255,.08);
  --glass-strong: rgba(255,255,255,.14);
  --text: #e8f0ff;
  --muted: #a8b3c7;
  --blue: #4cc9ff;
  --blue-dark: #1b7ed3;
  --shadow: rgba(0,0,0,.5);
}
html { font-size: 16px; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: var(--text);
  background-color: var(--bg);
  /* silver paper texture effect (subtle specks) */
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.15) 1px, transparent 1px),
    radial-gradient(circle at 40px 40px, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 40px 40px, 40px 40px;
  background-attachment: fixed;
  /* a faint bluish tint to reinforce cyberpunk vibe */
  background-blend-mode: overlay;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 2rem 1rem;
}

/* Frosted glass frame around the hero image */
.image-frame {
  width: min(100%, 720px);
  border-radius: 18px;
  padding: 1rem;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.28);
  box-shadow: 0 10px 40px rgba(0,0,0,.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.25);
  box-shadow: 0 6px 20px rgba(0,0,0,.4);
}

footer {
  padding: 1.5rem 1rem;
  text-align: center;
  color: var(--muted);
  background: transparent;
}

.product-ad {
  display: inline-block;
  padding: .65rem 0;
  border-radius: 12px;
  margin-bottom: 0.75rem;
  background: rgba(2,6,23,.65);
  border: 1px solid rgba(100,180,255,.5);
  padding-left: .75rem;
  padding-right: .75rem;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.product-ad h3 {
  margin: 0 0 .4rem;
  font-size: .95rem;
  color: #b9e1ff;
  text-shadow: 0 0 6px rgba(68,179,255,.6);
}
.product-ad a { text-decoration: none; }
.product-ad a p {
  display: inline-block;
  margin: 0;
  padding: .55rem 1rem;
  border-radius: 999px;
  background: linear-gradient(#0e1a38, #0a1130);
  color: #eaf6ff;
  border: 1px solid rgba(140,210,255,.8);
  font-weight: 700;
  box-shadow: 0 4px 10px rgba(0,0,0,.4);
  transition: transform .15s ease, filter .15s ease;
}
.product-ad a p:hover { transform: translateY(-1px); filter: brightness(1.08); }

/* Focus styles for accessibility */
.product-ad a p:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}

/* Responsive: mobile-first by default; adjust at breakpoints */
@media (min-width: 600px) {
  main { padding: 3rem 1.5rem; min-height: 70vh; }
  .image-frame { padding: 1.25rem; }
}
@media (min-width: 900px) {
  .image-frame { width: 820px; }
}

/* Subtle neon glow on key elements for cyberpunk vibe */
h1, h2, h3, .product-ad h3 {
  text-shadow: 0 0 8px rgba(76,201,255,.6);
}
a, a:visited { color: var(--blue); }