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

html, body { height: 100%; }

:root {
  --maroon: #800000;
  --red: #e50914;
  --red-dark: #b30000;
  --glass: rgba(255, 255, 255, 0.08);
  --text: #f5f5f5;
}

html, body { margin: 0; }

body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: var(--text);
  background-color: var(--maroon);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.4;
}

main {
  width: 100%;
  display: grid;
  place-items: center;
  padding: 4rem 1rem 2rem;
}

.image-frame {
  width: min(92vw, 860px);
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 14px;
  padding: 1rem;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.image-frame img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  display: block;
}

footer {
  padding: 1.5rem 0 2rem;
}

.product-ad {
  width: min(92vw, 900px);
  margin: 0 auto;
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: flex-start;
}

.product-ad h3 { margin: 0; font-size: 1.1rem; }

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

.product-ad a p {
  display: inline-block;
  padding: .65rem 1rem;
  border-radius: 6px;
  background: #d90429;
  color: #fff;
  font-weight: 700;
  transition: transform .15s ease;
}
.product-ad a:hover { transform: translateY(-1px); }
.product-ad a:focus-visible { outline: 2px solid #ffd166; outline-offset: 2px; border-radius: 6px; }

footer p { text-align: center; opacity: 0.9; margin: 0.75rem 0 0; font-size: 0.9rem; }

@media (min-width: 600px) {
  main { padding: 6rem 1rem 4rem; }
  .image-frame { border-radius: 16px; padding: 1.25rem; }
}

@media (min-width: 900px) {
  .image-frame { width: min(75vw, 900px); }
  footer { padding: 2rem 0 3rem; }
}