/* Reset and base */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
:root {
  --fg: #e6e8ee;
  --fg-soft: #cbd5e1;
  --glass: rgba(255,255,255,.08);
  --glass-border: rgba(255,255,255,.25);
  --bg-dark: #1b0000;
  --accent: #a6e1ff;
}
html { scroll-behavior: smooth; }

/* Light, accessible baseline and cyberpunk vibe */
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: var(--fg);
  background-color: var(--bg-dark);
  /* Red carbon-fiber look: layered gradients and diagonal stripes */
  background-image:
    repeating-linear-gradient(135deg,
      rgba(140,0,0,.85) 0px,
      rgba(140,0,0,.85) 6px,
      rgba(0,0,0,0) 6px,
      rgba(0,0,0,0) 12px),
    linear-gradient(180deg, rgba(0,0,0,.55), rgba(0,0,0,.55)),
    linear-gradient(45deg, rgba(255,255,255,.05), rgba(255,255,255,.0) 40%);
  background-blend-mode: overlay, multiply, normal;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout blocks */
main {
  flex: 1 1 auto;
  display: grid;
  place-items: center;
  padding: 4rem 1rem 2rem;
}

.image-frame {
  width: min(92vw, 860px);
  aspect-ratio: 16 / 9;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.28);
  background: rgba(255,255,255,.05);
  box-shadow: 0 20px 60px rgba(0,0,0,.6);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  position: relative;
}

.image-frame img {
  width: 100%; height: 100%; object-fit: cover;
  display: block;
  filter: saturate(1.05) contrast(1.05);
  transform: scale(1);
}

/* Frosted glass footer card (CTA) and footer text */
footer {
  padding: 1rem;
  border-top: 1px solid rgba(255,255,255,.08);
  background: rgba(12,14,20,.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: var(--fg);
}

/* Featured product card (frosted glass) */
.product-ad {
  width: min(92%, 720px);
  margin: 0 auto;
  padding: 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.28);
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 8px 28px rgba(0,0,0,.4);
  text-align: left;
}

.product-ad h3 {
  margin: 0 0 .5rem;
  font-size: 0.92rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: #eaf1f8;
}

.product-ad a {
  display: block;
  width: 100%;
  text-decoration: none;
  border-radius: 12px;
  padding: 1rem 1rem;
  text-align: center;
  font-weight: 800;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: #0b0f14;
  /* silver button look with subtle gradient for depth */
  background: linear-gradient(135deg, #e5e7eb 0%, #cbd5e1 60%, #93a3b8 100%);
  border: 1px solid rgba(255,255,255,.6);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.6), 0 2px 6px rgba(0,0,0,.4);
}
.product-ad a:hover {
  transform: translateY(-1px);
  background: linear-gradient(135deg, #f8fafc 0%, #dde6f0 60%, #a5b3c8 100%);
  outline: 2px solid rgba(125, 210, 255, 0.6);
}
.product-ad a:focus-visible {
  outline: 3px solid #7bdcff;
  outline-offset: 2px;
}
.product-ad p {
  margin: 0;
  font-size: 1rem;
  color: var(--fg-soft);
  margin-top: .5rem;
}

/* Footer label text */
footer p {
  text-align: center;
  color: #cbd5e1;
  font-size: .85rem;
  margin: .75rem 0 0;
  opacity: .95;
}

/* Responsive: mobile-first defaults good; adjust at breakpoints */
@media (min-width: 768px) {
  main { padding: 6rem 2rem 2rem; }
  .image-frame { border-radius: 22px; }
  .product-ad { padding: 18px; }
  .product-ad h3 { font-size: 1rem; }
}
@media (min-width: 1024px) {
  main { padding: 6rem 4rem 2rem; }
  .image-frame { max-width: 980px; }
  .product-ad { max-width: 900px; }
}