/* Reset and base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0b5d5d;          /* teal solid background (hacker vibe) */
  --text: #eaffff;         /* high-contrast text on teal */
  --accent: #2ffbd0;        /* neon teal for focus/accents */
  --glass: rgba(255,255,255,.12);
  --glass-strong: rgba(255,255,255,.22);
  --shadow: 0 8px 28px rgba(0,0,0,.25);
  --radius: 14px;
}

html, body { height: 100%; }

body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

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

.image-frame {
  width: min(92vw, 720px);
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.image-frame::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at 20% 0%, rgba(32,255,210,.25), transparent 40%);
  mix-blend-mode: overlay;
  pointer-events: none;
  opacity: .5;
}

/* Footer / CTA */
footer {
  text-align: center;
  padding: 1.5rem 1rem;
  color: rgba(234,255,255,.95);
}
.product-ad {
  display: inline-block;
  padding: .65rem 1rem;
  border-radius: 999px;
  background: rgba(0,0,0,.25);
  border: 1px solid rgba(47,255,208,.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  margin-bottom: .75rem;
}
.product-ad h3 {
  font-size: .95rem;
  font-weight: 700;
  color: #d6fff7;
  display: inline-block;
  margin-right: .4rem;
}
.product-ad a { color: var(--text); text-decoration: none; }
.product-ad a:hover { text-decoration: underline; }
.product-ad p {
  display: inline;
  margin: 0;
  padding-left: .25rem;
  font-weight: 700;
}
.product-ad a {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .6rem 1rem;
  border-radius: 999px;
  background: rgba(0,0,0,.25);
  border: 1px solid rgba(47,255,208,.75);
  text-decoration: none;
}
.product-ad a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}

/* Small-screen first tweaks */



/* Responsive tweaks */
@media (min-width: 768px) {
  main { padding: 4rem 2rem; min-height: 70vh; }
  .image-frame { width: min(860px, 60vw); }
  footer { padding: 2rem 0.5rem; }
}