/* Reset and base styles */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --indigo: #4f5bd5;
  --indigo-dark: #3a54d3;
  --bg: #0a0a14;
  --text: #e8eaff;
  --glass: rgba(18, 12, 40, 0.65);
  --edge: rgba(120, 110, 255, 0.5);
}
html, body { height: 100%; }

/* Black paper texture background + frosted glass vibe */
body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: var(--text);
  background-color: #000;
  background-image:
    linear-gradient(rgba(0,0,0,.65), rgba(0,0,0,.65)),
    repeating-linear-gradient(45deg, rgba(255,255,255,.04) 0 2px, transparent 2px 6px),
    repeating-linear-gradient(-45deg, rgba(255,255,255,.03) 0 2px, transparent 2px 6px);
  background-attachment: fixed;
  background-size: auto, 100px 100px, 100px 100px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout essentials (mobile-first) */
main {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

/* Frosted glass image frame as hero element */
.image-frame {
  width: min(92vw, 720px);
  padding: 0.75rem;
  border-radius: 20px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(120,110,255,.4);
  box-shadow:
    inset 0 1px 2px rgba(255,255,255,.05),
    0 8px 28px rgba(0,0,0,.5);
  backdrop-filter: blur(6px) saturate(1.2);
  -webkit-backdrop-filter: blur(6px) saturate(1.2);
  display:flex;
  align-items:center;
  justify-content:center;
}
.image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

/* Footer with a prominent product ad and subtle text */
footer {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  color: #cbd6ff;
}
.product-ad {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .4rem;
  width: min(92%, 700px);
  padding: .6rem 0;
  border-radius: 12px;
  background: rgba(18,0,60,.55);
  border: 1px solid rgba(120,110,255,.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.product-ad h3 {
  font-size: .95rem;
  color: #d9e0ff;
}
.product-ad a {
  display: inline-block;
  text-decoration: none;
  padding: .6rem 1rem;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--indigo), #6a7bff);
  color: #fff;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,.25);
}
.product-ad a:hover { filter: brightness(1.05); transform: translateY(-1px); }
.product-ad a:focus-visible {
  outline: 3px solid #8aa4ff;
  outline-offset: 2px;
}
.product-ad p { margin: 0; }

footer p { font-size: .85rem; color: #94a4d6; }

/* Global focus for accessibility on interactive elements */
a:focus-visible, button:focus-visible { outline: 3px solid var(--indigo); outline-offset: 2px; }

/* Small screens -> generous touch targets and compact layout */
@media (min-width: 900px) {
  main { padding: 3rem; }
  .image-frame { padding: 1rem; }
}