/* Light reset */
* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; padding: 0; }

/* Theme: orange circuit board with turquoise hacker glow, frosted glass, mobile-first */
:root {
  --turq: #2bd8c2;
  --turq-dark: #0fb6a9;
  --bg-a: #ff7a00;
  --bg-b: #d65f00;
  --glass: rgba(12, 18, 26, 0.70);
  --text: #e8fffb;
  --text-dim: #c9fff1;
  --shadow: rgba(0,0,0,.4);
}

html { color-scheme: dark; }

body {
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  /* orange gradient base with turquoise circuit overlay */
  background: linear-gradient(135deg, var(--bg-a) 0%, var(--bg-b) 60%, #250e00 100%);
  background-blend-mode: normal, overlay;
  /* subtle turquoise circuit pattern over orange */
  background-image:
    linear-gradient(0deg, rgba(46,230,210,.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46,230,210,.15) 1px, transparent 1px);
  background-size: 28px 28px, 28px 28px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Layout core */
main {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.25rem 1rem;
}

.image-frame {
  width: min(92vw, 760px);
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(46, 230, 210, 0.55);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 10px 40px rgba(0,0,0,.35);
  backdrop-filter: saturate(1.25) blur(6px);
  -webkit-backdrop-filter: saturate(1.25) blur(6px);
  display: flex;
  align-items: stretch;
  justify-content: center;
  margin: 0.75rem 0 1.25rem;
}

.image-frame img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  filter: saturate(1.05) contrast(1.05);
  transform: scale(1);
}

footer { width: 100%; padding: 0.75rem 1rem; margin-top: auto; }

.product-ad {
  width: min(92vw, 720px);
  margin: 0.25rem auto 0.75rem;
  padding: 0.9rem 1rem;
  background: rgba(10, 20, 32, 0.72);
  border: 1px solid rgba(46, 230, 210, 0.42);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  backdrop-filter: blur(6px) saturate(1.2);
  -webkit-backdrop-filter: blur(6px) saturate(1.2);
}

.product-ad h3 {
  margin: 0;
  font-size: 1rem;
  color: #bafff5;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.product-ad a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1rem;
  margin-top: 0.25rem;
  background: rgba(46, 230, 210, 0.28);
  color: #041c1a;
  text-decoration: none;
  border-radius: 999px;
  border: 1px solid rgba(46, 230, 210, 0.8);
  font-weight: 700;
  transition: transform .15s ease, background .2s ease;
}
.product-ad a:focus-visible {
  outline: 3px solid rgba(46, 230, 210, 0.95);
  outline-offset: 2px;
}
.product-ad a:hover {
  transform: translateY(-1px);
  background: rgba(46, 230, 210, 0.48);
}
.product-ad a p {
  margin: 0;
  padding: 0;
  font-weight: 700;
  color: #041c1a;
}
footer p {
  text-align: center;
  color: #c9fff1;
  opacity: 0.92;
  font-size: 0.95rem;
  margin: 0.4rem 0 0;
}

/* Accessibility helpers for focus on interactive elements if any in future */
a, button, [role="button"] {
  outline: none;
}
a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(46, 230, 210, 0.95);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Responsive tweaks (mobile-first) */
@media (min-width: 700px) {
  main { padding: 2.5rem 0; }
  .image-frame { width: min(72vw, 980px); }
  .product-ad { width: min(60vw, 800px); margin-left: auto; margin-right: auto; }
}
@media (min-width: 1024px) {
  .image-frame { border-radius: 20px; }
  .product-ad { padding: 1.1rem; }
}