*,
*::before,
*::after { box-sizing: border-box; }

:root {
  --bg: #0b0f14;
  --glass: rgba(255,255,255,.08);
  --glass-border: rgba(255,255,255,.25);
  --text: #e9e9e9;
  --red: #e60000;
  --red-d: #a50000;
  --shadow: 0 20px 40px rgba(0,0,0,.4);
}

html, body { height: 100%; }

body {
  margin: 0;
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  /* silver striped background pattern */
  background-image:
    linear-gradient(135deg, rgba(255,255,255,.15) 0 2px, transparent 2px 60px),
    linear-gradient(45deg, rgba(192,192,192,.25) 0 2px, transparent 2px 60px);
  background-size: 60px 60px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  min-height: calc(100vh - 120px);
}

.image-frame {
  width: min(700px, 92vw);
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 16px;
  padding: 1rem;
  backdrop-filter: blur(8px) saturate(1.2);
  -webkit-backdrop-filter: blur(8px) saturate(1.2);
  box-shadow: var(--shadow);
}

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

footer {
  padding: 1.25rem;
  margin-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  background: rgba(0,0,0,.25);
  border-top: 1px solid rgba(255,255,255,.15);
}

.product-ad {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .6rem .9rem;
  border-radius: 12px;
  background: rgba(0,0,0,.35);
  border: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.product-ad h3 {
  font-size: 1rem;
  margin: 0;
}
.product-ad a {
  text-decoration: none;
}
.product-ad p {
  margin: 0;
  color: #fff;
  background: var(--red);
  padding: .5rem .75rem;
  border-radius: 6px;
  font-weight: 700;
  min-width: max-content;
  display: inline-block;
  box-shadow: inset 0 0 0 rgba(0,0,0,0);
}
.product-ad a:focus-visible, .product-ad p:focus-visible {
  outline: 3px solid #ffd1d1;
  outline-offset: 2px;
}
a { color: #ffd6d6; text-decoration: none; }
a:hover { color: #fff; text-decoration: underline; }

/* CTA button styling for prominent, accessible interaction */
.btn {
  display: inline-block;
  padding: .85rem 1.25rem;
  border-radius: 8px;
  background: var(--red);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,.25);
  transition: transform .15s ease, background .2s ease;
}
.btn:hover { transform: translateY(-1px); background: #c40000; }
.btn:active { transform: translateY(0); }

.btn:focus-visible {
  outline: 3px solid #00ffea;
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(0,255,234,.15);
}

/* Mobile-first adjustments */
@media (max-width: 640px) {
  .image-frame { padding: .75rem; border-radius: 12px; }
  footer { justify-content: center; text-align: center; }
  .btn { width: auto; padding: .9rem 1.1rem; }
}