:root {
  --maroon: #7a1d2a;
  --violet: #8b2bd7;
  --bg: #0b0a12;
  --glass: rgba(255, 255, 255, 0.08);
  --text: #e9e6f6;
  --focus: #ffd166;
}

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

html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    linear-gradient(to bottom, rgba(9,0,20,.9), rgba(9,0,20,.9)),
    repeating-linear-gradient(135deg, rgba(124,0,255,.25) 0 8px, rgba(124,0,255,0) 8px 16px);
  min-height: 100%;
}

main {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  min-height: 60vh;
}

.image-frame {
  width: min(92vw, 760px);
  aspect-ratio: 16/9;
  display: grid;
  place-items: center;
  padding: 1.4rem;
  border-radius: 20px;
  background: rgba(12, 0, 40, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

footer {
  padding: 2rem 1rem;
  display: grid;
  gap: 0.75rem;
  justify-items: center;
  margin-top: 1rem;
}

.product-ad {
  width: min(92vw, 760px);
  padding: 0.9rem 1rem;
  border-radius: 14px;
  background: rgba(20, 0, 30, 0.66);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.5);
  text-align: center;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.product-ad h3 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
  color: #f6eafe;
}

.product-ad a { text-decoration: none; }

.product-ad a p {
  display: inline-block;
  padding: 0.75rem 1.05rem;
  border-radius: 9px;
  background: linear-gradient(135deg, #7a0d2a 0%, #4b0b16 100%);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 6px 16px rgba(122, 13, 42, 0.6);
  transition: transform 0.2s ease;
}

.product-ad a p:hover {
  transform: translateY(-2px);
}

footer p {
  color: #cabdd7;
  font-size: 0.9rem;
  margin: 0;
}

a:focus-visible, button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

@media (min-width: 768px) {
  .image-frame {
    padding: 1.8rem;
    border-radius: 22px;
  }
  .product-ad {
    padding: 1.1rem;
  }
  .product-ad h3 {
    font-size: 1.15rem;
  }
}