/* Reset & base */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
:root {
  --blue: #4db3ff;
  --blue-dark: #0b4bd3;
  --glass: rgba(255,255,255,0.08);
  --text: #eaf2ff;
  --card: rgba(255,255,255,0.08);
  --ring: rgba(120,190,255,0.9);
}
html, body { height: 100%; }

/* Purple metallic, hacker vibe, frosted glass feel */
body {
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto;
  background: #0a0a12;
  background: radial-gradient(circle at 20% -10%, rgba(160,0,180,0.25) 0%, rgba(0,0,0,0) 40%),
              linear-gradient(135deg, rgba(60,0,90,0.95) 0%, rgba(12,2,60,0.95) 60%, rgba(0,0,0,0.95) 100%);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
/* Subtle animated purple sheen over the page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: linear-gradient(120deg, rgba(110,0,180,0.6), rgba(40,0,90,0.6) 50%, rgba(20,0,60,0.6));
  background-size: 200% 200%;
  mix-blend-mode: overlay;
  opacity: 0.8;
  filter: saturate(1.1);
  animation: sheen 12s linear infinite;
  pointer-events: none;
}
@keyframes sheen {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Light reset */
*, *::before, *::after { box-sizing: border-box; }
img { max-width: 100%; display: block; }

/* Layout */
main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}
.image-frame {
  width: 100%;
  max-width: 720px;
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(140,160,255,0.75);
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.image-frame img { width: 100%; height: 100%; object-fit: cover; }

/* Footer / frosted glass panel that can hold a CTA */
footer {
  padding: 1.5rem 1rem;
}
.product-ad {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(720px, 100%);
  margin: 0 auto;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(120,170,255,0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.product-ad h3 { margin: 0; font-size: 1rem; letter-spacing: .5px; }
.product-ad p { margin: 0; font-weight: 600; color: #eaf2ff; }
.product-ad a {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 0.85rem;
  border-radius: 8px;
  text-decoration: none;
  color: #eaf2ff;
  border: 1px solid rgba(120,180,255,0.95);
  background: linear-gradient(135deg, rgba(20,60,110,0.85), rgba(0,40,110,0.85));
}
.product-ad a:hover, .product-ad a:focus {
  background: linear-gradient(135deg, rgba(30,80,150,0.95), rgba(0,40,110,0.95));
  outline: 0;
  box-shadow: 0 0 0 4px rgba(120,190,255,0.45);
}
footer p {
  text-align: center;
  color: rgba(234,246,255,0.85);
  font-size: 0.9rem;
  margin: 0.8rem auto 0;
}

/* Focus styles for accessibility */
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
  border-radius: 6px;
}
:focus { outline: 2px solid var(--ring); outline-offset: 2px; }

/* Buttons (for potential CTAs) */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  color: #eaf2ff;
  font-weight: 600;
  border: 1px solid rgba(120,180,255,0.95);
  background: linear-gradient(135deg, rgba(20,70,160,0.95), rgba(0,40,110,0.95));
  box-shadow: 0 6px 14px rgba(0,0,0,0.25);
}
.btn:hover { filter: brightness(1.05); }

/* Responsive, mobile-first adjustments */
@media (min-width: 600px) {
  main { padding: 3rem 2rem; }
  .image-frame { border-radius: 18px; }
}
@media (min-width: 900px) {
  main { padding: 4rem 2rem; }
  .image-frame { max-width: 820px; aspect-ratio: 16/9; }
  .product-ad { gap: 1.25rem; }
}