/* Light reset and CSS reset for a clean, accessible baseline */
*,
*::before,
*::after { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; padding: 0; }

/* Color system and theme: orange metallic sheen with coral cyberpunk vibe */
:root {
  --bg: #0b0b0b;
  --fg: #f5efe6;
  --soft-fg: #e8dbc4;
  --accent: #ff7a50;       /* coral accent */
  --accent2: #ffae7a;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.25);
  --shadow: 0 8px 28px rgba(0,0,0,.45);
  --focus: 0 0 0 3px rgba(255, 140, 0, 0.9);
  --radius: 14px;
}
body {
  background: #0b0b0b;
  background-image:
    radial-gradient(circle at 10% 0%, rgba(255, 140, 0, 0.25), transparent 25%),
    radial-gradient(circle at 80% -10%, rgba(255, 93, 0, 0.25), transparent 25%),
    linear-gradient(135deg, rgba(255,140,0,0.08), rgba(255,0,0,0.0) 60%);
  background-size: 200% 200%;
  animation: sheen 14s linear infinite;
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
@keyframes sheen {
  0%   { background-position: 0% 0%; }
  50%  { background-position: 100% 0%; }
  100% { background-position: 0% 0%; }
}

/* Layout: mobile-first, centered hero with frosted glass effect around image */
main {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  min-height: calc(100vh - 120px);
}
.image-frame {
  width: min(92%, 900px);
  padding: 1.25rem;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.25);
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: transform .25s ease;
}
.image-frame:hover { transform: translateY(-2px); }
.image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  outline: none;
}

/* Footer with frosted glass CTA and copyright note */
footer {
  padding: 1.5rem;
  text-align: center;
  color: var(--soft-fg);
}
.product-ad {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  padding: .75rem;
  border-radius: 12px;
  width: min(92%, 640px);
  background: rgba(0,0,0,0.45);
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  margin: 0 auto 0.75rem;
}
.product-ad h3 {
  font-size: 1.05rem;
  margin: 0;
  color: #ffd9c1;
  text-shadow: 0 1px 0 rgba(0,0,0,.25);
}
.product-ad a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .6rem 1.05rem;
  min-width: 240px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, rgba(255, 110, 0, 1), rgba(255, 60, 0, 0.95));
  border: 1px solid rgba(255,255,255,0.45);
  box-shadow: 0 6px 14px rgba(255, 110, 0, 0.6);
}
.product-ad a:hover { filter: brightness(1.05); transform: translateY(-1px); }
.product-ad a:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 191, 0, 0.9);
  border: 0;
}
footer p { margin: 0.5rem 0 0; font-size: 0.9rem; color: #e9d9c8; opacity: .9; }

/* Focus and accessibility for all links/buttons */
a:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 168, 0, 0.9);
  border-radius: 4px;
}

/* Responsive adjustments: widen layout for larger viewports while keeping mobile-first flow */
@media (min-width: 600px) {
  main { padding: 3rem 2rem; }
  footer { padding: 2rem; }
}
@media (min-width: 900px) {
  main { min-height: calc(100vh - 180px); }
  .image-frame { padding: 1.75rem; }
  .product-ad { flex-direction: row; align-items: center; gap: 1rem; }
  .product-ad a { min-width: 240px; }
}