/* Reset and base */
*, *::before, *::after { box-sizing: border-box; }
:root {
  --turq-1: #12d6c8;
  --turq-2: #0db3a6;
  --turq-3: #17e0d0;
  --yellow: #ffd34d;
  --yellow-dark: #f4c21a;
  --bg: #041016;
  --text: #eafaf6;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.25);
}
html, body { height: 100%; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  min-height: 100vh;
  position: relative;
}
/* Turquoise low-poly triangles background (light, responsive) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    linear-gradient(135deg, rgba(18, 214, 200, 0.25) 0 40px, transparent 40px 80px),
    linear-gradient(315deg, rgba(0, 210, 200, 0.25) 0 40px, transparent 40px 80px),
    linear-gradient(45deg, rgba(20, 240, 210, 0.25) 0 40px, transparent 40px 80px);
  background-size: 80px 80px;
  background-position: 0 0, 20px 10px, 40px 20px;
  mix-blend-mode: overlay;
  opacity: 0.75;
  filter: saturate(110%);
  pointer-events: none;
}
main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  min-height: calc(100vh - 120px);
}
.image-frame {
  width: 100%;
  max-width: 720px;
  border-radius: 18px;
  overflow: hidden;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  box-shadow: 0 20px 50px rgba(0,0,0,0.38);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
footer {
  width: 100%;
  max-width: 860px;
  padding: 1.5rem 1rem;
  text-align: center;
  color: rgba(234, 246, 239, 0.95);
  margin: 1.75rem auto 2rem;
}
.product-ad {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  padding: .5rem .75rem;
  border-radius: 999px;
  background: rgba(0,0,0,0.25);
  border: 1px solid rgba(255,255,255,0.25);
  margin: 0 0 0.75rem;
}
.product-ad h3 { margin: 0; font-size: .92rem; color: #e8fff0; font-weight: 700; }
.product-ad a { text-decoration: none; display: inline-block; }
.product-ad a p {
  margin: 0;
  padding: .5rem 1rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #ffd033 0%, #ffd033 60%, #ffcf2e 100%);
  color: #111;
  font-weight: 800;
  letter-spacing: .2px;
  box-shadow: 0 6px 14px rgba(0,0,0,0.25);
  transition: transform 0.15s ease;
  text-shadow: 0 0 6px rgba(255, 211, 77, 0.6);
}
.product-ad a p:hover { transform: translateY(-1px); }

/* Focus styles for accessibility */
a:focus-visible {
  outline: 2px solid var(--yellow);
  outline-offset: 2px;
  border-radius: 6px;
}

/* Small-screen first adjustments */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}
@media (min-width: 640px) {
  main { padding: 3rem 2rem; }
}
@media (min-width: 900px) {
  main { padding: 4rem 2rem; }
  .image-frame { box-shadow: 0 40px 80px rgba(0,0,0,0.45); }
}