*,
*::before,
*::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

:root {
  --card: rgba(255, 255, 255, 0.08);
  --text: #eaf6ff;
  --bg-stripes: rgba(9, 25, 60, 0.95);
  --accent: #00e5ff;
}

html, body {
  min-height: 100vh;
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto;
  background-color: #0b1220;
  background-image: repeating-linear-gradient(135deg,
    #0b1a2d 0 24px,
    #09122a 24px 48px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: #a6f0ff; text-decoration: none; }
a:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

main { padding: 2rem 1rem; display: block; }

.image-frame {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 1rem;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid rgba(255,255,255,.22);
  box-shadow: 0 8px 40px rgba(0,0,0,.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  filter: saturate(1.05);
}

footer { padding: 2rem 1rem; }

.product-ad {
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
  padding: .95rem 1rem;
  border-radius: 14px;
  background: var(--card);
  border: 1px solid rgba(255,255,255,.22);
  text-align: left;
  box-shadow: 0 8px 30px rgba(0,0,0,.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.product-ad h3 { margin: 0 0 .5rem; font-size: 1.05rem; color: #e9f6ff; }
.product-ad p { margin: 0; }

.product-ad a {
  display: inline-block;
  margin-top: .75rem;
  padding: .75rem 1.25rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #00f0ff 0%, #0070ff 60%, #003a66 100%);
  color: #eaffff;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,.25);
  box-shadow: 0 0 14px rgba(0,240,255,.8);
  transition: transform .15s ease, box-shadow .15s ease;
}
.product-ad a:hover { transform: translateY(-1px); box-shadow: 0 0 18px rgba(0,240,255,.95); }
.product-ad a:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

footer p { text-align: center; margin-top: 1rem; color: #cbdaf9; }

@media (min-width: 640px) {
  main { padding: 2.5rem 1.5rem; }
  .image-frame { padding: 1.25rem; }
  .product-ad { padding: 1.25rem; }
}
@media (min-width: 1024px) {
  body { background-attachment: fixed; }
}