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

:root {
  --cyan: #00e5ff;
  --cyan-dark: #00a3b8;
  --glass: rgba(255,255,255,.08);
  --glass-border: rgba(0,255,255,.35);
  --text: #eaffff;
  --bg-shadow: 0 8px 28px rgba(0,0,0,.4);
}

html, body { height: 100%; }

/* Light reset + mobile-first, cyan sunset cyberpunk vibe */
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: var(--text);
  background: linear-gradient(135deg,
              #00101a 0%,
              #003049 25%,
              #007e95 50%,
              #00e5ff 75%,
              #6c00ff 100%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout primitives */
header, main, footer { width: 100%; }

/* Hero header */
header { padding: 1.25rem; text-align: center; }

/* Neon heading with glow for hacker vibe */
header h1 {
  font-size: 1.4rem;
  letter-spacing: .6px;
  color: #d7fbff;
  text-shadow: 0 0 6px rgba(0,255,255,.9);
}

/* Centered, frosted-glass main area */
main {
  padding: 0 1rem 1.5rem;
  display: grid;
  place-items: center;
}

/* Frosted glass container around the image (glass frame) */
.image-frame {
  padding: 0.75rem;
  border-radius: 16px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(0,255,255,.25);
  backdrop-filter: blur(6px) saturate(1.2);
  -webkit-backdrop-filter: blur(6px) saturate(1.2);
  box-shadow: var(--bg-shadow);
  max-width: 720px;
  width: 100%;
}

.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid rgba(0,255,255,.25);
}

/* Footer + featured product card (CTA) */
footer {
  padding: 1rem;
  text-align: center;
}

.product-ad {
  display: inline-block;
  padding: .75rem 1rem;
  border-radius: 12px;
  background: rgba(0,0,0,.28);
  border: 1px solid rgba(0,255,255,.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  margin-bottom: .5rem;
}

.product-ad h3 {
  margin-bottom: .5rem;
  font-size: 1.05rem;
  color: #bfffff;
  text-shadow: 0 0 6px rgba(0,255,255,.9);
}

.product-ad a {
  /* Make the CTA look like a prominent button, even if HTML nests a <p> inside */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  text-decoration: none;
  color: inherit;
  padding: .6rem .95rem;
  border-radius: 999px;
  border: 1px solid rgba(0,255,255,.6);
  background: linear-gradient(135deg, rgba(0,255,255,.25), rgba(0,255,255,.65));
  font-weight: 600;
  transition: transform .15s ease, box-shadow .15s ease;
}

.product-ad a:hover,
.product-ad a:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(0,255,255,.6);
  outline: none;
}

.product-ad a p {
  margin: 0;
  line-height: 1.2;
}

/* Accessible focus for interactive elements */
.product-ad a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* Small screens: emphasize stacking; larger screens get a bit more breathing room */
@media (min-width: 768px) {
  header h1 { font-size: 2rem; }
  .image-frame { padding: 1rem; max-width: 900px; }
  .product-ad { padding: 1rem 1.25rem; }
}