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

/* Theme: cyan parchment + beige hacker/future cyberpunk vibe */
:root {
  --beige: #e6d2b7;
  --beige-dark: #2b1f11;
  --cyan: #7bd9d9;
  --cyan-dark: #58c7c7;
  --bg: linear-gradient(135deg, rgba(178,240,238,0.9) 0%, rgba(232,228,196,0.9) 60%, rgba(178,240,238,0.9) 100%);
  --card: rgba(255,255,255,0.78);
  --glass: rgba(255,255,255,0.65);
  --shadow: 0 12px 28px rgba(0,0,0,.12);
  --ring: 0 0 0 3px rgba(123,217,217,.6);
  --blur: blur(6px);
}

/* Base */
html, body { height: 100%; }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--beige-dark);
  background: var(--bg);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout (mobile-first) */
main {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  min-height: calc(100vh - 180px);
}

.image-frame {
  width: min(92vw, 720px);
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  border-radius: 20px;
  overflow: hidden;
  background: rgba(255,255,255,0.75);
  border: 1px solid rgba(0,0,0,.08);
  box-shadow: var(--shadow);
  backdrop-filter: saturate(1.05) blur(6px);
  -webkit-backdrop-filter: saturate(1.05) blur(6px);
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Frosted footer / panel styling */
footer {
  padding: 1.75rem 1rem;
  display: grid;
  place-items: center;
  background: rgba(255,255,255,0.6);
  border-top: 1px solid rgba(0,0,0,.05);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.product-ad {
  display: grid;
  gap: .75rem;
  width: min(100%, 520px);
  padding: 1rem;
  border-radius: 14px;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(0,0,0,.06);
  text-align: center;
}

.product-ad h3 {
  font-size: 0.95rem;
  letter-spacing: .3px;
  color: var(--beige-dark);
}

.product-ad a { text-decoration: none; }

.product-ad a > p {
  margin: 0;
  display: inline-block;
  padding: .75rem 1.25rem;
  background: #e8dcc0;
  color: var(--beige-dark);
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid rgba(0,0,0,.05);
  transition: transform .15s ease;
}

.product-ad a:hover > p { transform: translateY(-1px); }

footer p {
  color: #6a5331;
  text-align: center;
  margin-top: .5rem;
  font-size: .9rem;
}

/* Focus states for accessibility */
a:focus-visible, button:focus-visible {
  outline: none;
  box-shadow: var(--ring);
  border-color: var(--cyan);
  border-radius: 6px;
}
a, button { -webkit-tap-highlight-color: transparent; }

/* Responsiveness (tablet/desktop) */
@media (min-width: 768px) {
  main { padding: 3rem 2rem; min-height: calc(100vh - 140px); }
  .image-frame { border-radius: 28px; }
  .product-ad { width: 520px; }
}