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

:root {
  --gold: #ffd166;
  --text: #f5f0d8;
  --glass: rgba(255, 255, 255, 0.08);
}

html, body { height: 100%; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background-color: #000;
  line-height: 1.5;
  min-height: 100vh;
  /* black geometric shapes background */
  background-image:
    radial-gradient(circle at 15% 15%, rgba(212, 174, 72, 0.25) 0 6px, transparent 6px),
    radial-gradient(circle at 70% 60%, rgba(0, 213, 255, 0.15) 0 6px, transparent 6px);
  background-size: 60px 60px, 60px 60px;
  background-repeat: repeat, repeat;
  overflow-x: hidden;
}

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

.image-frame {
  width: min(92vw, 720px);
  padding: 1rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px) saturate(110%);
  -webkit-backdrop-filter: blur(6px) saturate(110%);
}

.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
}

footer {
  padding: 1rem;
  text-align: center;
  color: #e9e2c4;
  background: rgba(0, 0, 0, 0.5);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.product-ad {
  display: inline-block;
  padding: 0.75rem 1rem;
  margin: 0 auto 0.75rem;
  min-width: 0;
  max-width: 92vw;
  text-align: left;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 14px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.product-ad h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
  color: var(--gold);
  text-shadow: 0 0 6px rgba(255, 214, 68, 0.8);
}

.product-ad p {
  margin: 0.25rem 0 0;
  color: #f7f2d1;
  font-size: 0.95rem;
}

.product-ad a {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.6rem 0.95rem;
  border-radius: 999px;
  text-decoration: none;
  background: linear-gradient(135deg, #ffd36e 0%, #e0ad2b 60%, #c58a00 100%);
  color: #141414;
  font-weight: 700;
  border: 1px solid rgba(0, 0, 0, 0.25);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-ad a:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 18px rgba(0, 0, 0, 0.5);
}

.product-ad a:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

footer p {
  margin-top: 0.25rem;
  font-size: 0.9rem;
  opacity: 0.8;
}

@media (min-width: 768px) {
  main {
    padding-top: 3rem;
    min-height: calc(100vh - 120px);
  }
  .image-frame {
    width: min(720px, 70vw);
    padding: 1.25rem;
  }
}