/* Global reset (light) */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

/* Turquoise-to-purple hacker vibe with frosted glass */
:root {
  --bg-start: #00f0d0;
  --bg-mid:   #4c00d6;
  --bg-end:   #7a00ff;
  --glass: rgba(255, 255, 255, 0.14);
  --glass-border: rgba(255, 255, 255, 0.25);
  --text: #eaffff;
  --muted: rgba(235, 255, 255, 0.85);
  --cta: rgba(0, 255, 235, 0.28);
  --cta-border: rgba(0, 255, 235, 0.65);
  --glow: 0 0 14px rgba(0, 255, 235, 0.8);
}

body {
  min-height: 100%;
  color: var(--text);
  background: linear-gradient(135deg, var(--bg-start) 0%, var(--bg-mid) 50%, var(--bg-end) 100%);
  /* subtle ambient glow to hint hacker theme */
  text-shadow: 0 0 1px rgba(0,0,0,.2);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout (mobile-first) */
main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  min-height: calc(100vh - 140px);
}

/* Frosted glass image frame (hero) */
.image-frame {
  width: min(720px, 92vw);
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  border-radius: 16px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 28px rgba(0,0,0,.25), inset 0 1px 2px rgba(255,255,255,.25);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  /* neon halo for cyber vibe */
  outline: 1px solid rgba(0,255,235,.25);
}
.image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  /* slight glow around the image edges */
  box-shadow: 0 0 12px rgba(0,255,235,.6);
}

/* Footer area hosting the product ad (frosted glass) */
footer {
  padding: 1.25rem 1rem 2rem;
}

.product-ad {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .6rem;
  width: min(680px, 92vw);
  margin: 0 auto;
  padding: 1rem;
  border-radius: 14px;
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.28);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 8px 26px rgba(0,0,0,.25);
  text-align: center;
}

.product-ad h3 {
  font-size: 1rem;
  color: #eaffff;
  text-shadow: 0 0 6px rgba(0,255,235,.6);
  letter-spacing: .2px;
}

.product-ad a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .9rem 1.9rem;
  border-radius: 999px;
  background: var(--cta);
  color: #eaffff;
  text-decoration: none;
  border: 1px solid var(--cta-border);
  font-weight: 700;
  transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
  text-shadow: 0 0 6px rgba(0,255,235,.6);
}
.product-ad a:hover {
  transform: translateY(-2px);
  background: rgba(0,255,235,.42);
  box-shadow: var(--glow);
}
.product-ad a:focus-visible {
  outline: 3px solid #00e5ff;
  outline-offset: 2px;
  box-shadow: 0 0 0 rgba(0,0,0,0);
}
.product-ad a p {
  margin: 0;
  padding: 0;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  color: inherit;
}

/* Footer small text */
footer p {
  margin-top: .8rem;
  color: rgba(235,245,255,.85);
  text-align: center;
  font-size: .9rem;
}

/* Accessibility & responsiveness tweaks */
:focus-visible {
  outline: 3px solid #00e5ff;
  outline-offset: 2px;
}
@media (min-width: 640px) {
  /* Slightly larger hero on bigger screens */
  main { padding: 3rem 2rem; min-height: calc(100vh - 180px); }
  .image-frame { width: min(860px, 90vw); }
  .product-ad h3 { font-size: 1.05rem; }
}