/* Reset & base */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
html { font-size: 16px; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial;
  color: #eafff0;
  background: #041018;
  line-height: 1.5;
  overflow-x: hidden;
  /* turquoise geometric shapes background */
  background-image:
    radial-gradient(circle at 15% 20%, rgba(27,214,195,.25) 0 60px, transparent 60px),
    radial-gradient(circle at 70% 40%, rgba(0,214,180,.20) 0 60px, transparent 60px),
    conic-gradient(from 180deg at 60% 0%, rgba(0,255,170,.14), rgba(0,0,0,0) 60deg, rgba(0,255,170,.14) 240deg, rgba(0,0,0,0) 360deg);
  background-size: 420px 420px, 420px 420px, 100% 100%;
  background-repeat: no-repeat;
  animation: floatBg 22s linear infinite;
  perspective: 1000px;
}
@keyframes floatBg { to { transform: translate( -8px, -6px ); } }

/* Layout container */
.wrapper { max-width: 1100px; margin: 0 auto; padding: 0 1rem; }

/* Hero header (frosted glass, prominent title) */
header {
  display: flex;
  justify-content: center;
  padding: 2rem 1rem 1.25rem;
}
header {
  /* Frosted glass container for hero title */
  background: rgba(9, 22, 20, 0.65);
  border: 1px solid rgba(0, 255, 170, 0.4);
  border-radius: 16px;
  padding: 1.25rem;
  width: min(100%, 1100px);
  backdrop-filter: blur(8px) saturate(1.2);
  -webkit-backdrop-filter: blur(8px) saturate(1.2);
  box-shadow: 0 8px 28px rgba(0,0,0,0.25);
  text-align: center;
}
header h1 {
  margin: 0;
  font-size: clamp(1.8rem, 6vw, 3.4rem);
  line-height: 1.04;
  color: #eafff0;
  text-shadow: 0 0 8px rgba(46,255,165,0.6);
}
.hero-cta {
  margin-top: 0.9rem;
  display: inline-flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.05rem;
  border-radius: 999px;
  border: 1px solid rgba(46,255,135,0.6);
  text-decoration: none;
  color: #041b0f;
  background: linear-gradient(135deg, rgba(46,255,135,.95), rgba(20,180,120,.85));
  font-weight: 700;
  letter-spacing: .2px;
  box-shadow: 0 6px 14px rgba(46,255,135,.5);
}
.btn.secondary {
  background: rgba(14,27,24,.65);
  color: #dfffe8;
  border: 1px solid rgba(0,255,170,.35);
  box-shadow: none;
}
.btn:focus-visible {
  outline: 2px solid #10e981;
  outline-offset: 2px;
}

/* Main content */
main { padding: 1rem 0 2rem; display: block; }
.image-frame {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 0.75rem;
  border-radius: 16px;
  background: rgba(9,28,26,0.65);
  border: 1px solid rgba(0,255,170,0.4);
  backdrop-filter: blur(6px) saturate(1.15);
  -webkit-backdrop-filter: blur(6px) saturate(1.15);
  box-shadow: 0 20px 40px rgba(0,0,0,.25);
}
.image-frame img { width: 100%; height: auto; display: block; border-radius: 12px; }

/* Footer with product ad CTA */
footer {
  padding: 2rem 1rem;
  text-align: center;
  color: #b8ffd9;
}
.product-ad {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  background: rgba(8, 28, 20, 0.65);
  border: 1px solid rgba(0,255,170,0.4);
  margin-bottom: 0.75rem;
}
.product-ad h3 { font-size: 1rem; margin: 0 0 0.25rem; color: #d7fff0; }
.product-ad a {
  text-decoration: none;
  color: #d0ffd9;
  display: inline-block;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(0,255,170,0.25), rgba(0,0,0,0));
  border: 1px solid rgba(0,255,170,0.5);
}
footer p { margin: 0; opacity: .85; }

/* Accessibility helpers for focus on links and buttons */
a:focus-visible, button:focus-visible {
  outline: 2px solid #10e981;
  outline-offset: 2px;
}

/* Responsive tweaks */
@media (min-width: 768px) {
  header { padding: 2.5rem 1rem 1.5rem; }
  .image-frame { max-width: 860px; }
}
@media (min-width: 1024px) {
  header { padding: 3rem 0 1.5rem; }
  header h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
}