/* Frosted glass hacker theme with cyan waves and coral CTA */
/* Global reset */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }

/* Theme variables */
:root {
  --bg-cyan: #00e6ff;
  --bg-cyan-dark: #00bcd4;
  --coral: #ff6f61;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.28);
  --text: #eaffff;
}

/* Cyan waves background and cyberpunk vibe */
body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto;
  color: var(--text);
  min-height: 100vh;
  background: #00131a;
  background-image:
    radial-gradient(circle at 20% 0, rgba(0,230,255,.25) 0 60px, transparent 60px),
    radial-gradient(circle at 80% 20%, rgba(0,230,255,.20) 0 80px, transparent 80px),
    linear-gradient(to bottom, #00131a 0%, #001e2a 60%, #000 100%);
  background-size: 120px 120px, 140px 140px, 100% 100%;
  background-repeat: no-repeat;
  overflow-x: hidden;
  position: relative;
}

/* Subtle cyan waves layer */
body::before {
  content: "";
  position: fixed;
  left: -25%;
  top: 60%;
  width: 150%;
  height: 60vh;
  background: radial-gradient(circle at 25% 50%, rgba(0,255,255,.25) 0 40px, transparent 40px),
              radial-gradient(circle at 75% 40%, rgba(0,255,255,.25) 0 50px, transparent 50px);
  filter: blur(0.5px);
  opacity: 0.9;
  transform: translateY(-50%);
  pointer-events: none;
  z-index: -1;
  animation: waves 18s linear infinite;
}
@keyframes waves {
  0% { transform: translateY(-40px) translateX(0); }
  50% { transform: translateY(-20px) translateX(20px); }
  100% { transform: translateY(-40px) translateX(0); }
}

/* Layout: mobile-first, centered hero image frame */
main {
  display: grid;
  place-items: center;
  padding: 48px 16px;
}

/* Frosted glass image frame (hero) */
.image-frame {
  width: min(92vw, 720px);
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 14px;
  box-shadow: 0 10px 40px rgba(0,0,0,.4);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

/* Footer with frosted glass CTA */
footer {
  padding: 20px 16px;
  text-align: center;
  background: rgba(0,0,0,.25);
  border-top: 1px solid rgba(255,255,255,.15);
}
.product-ad {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 12px;
  background: rgba(0,0,0,.25);
  border: 1px solid rgba(255,255,255,.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.product-ad h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  color: #d7feff;
  text-shadow: 0 0 6px rgba(0,255,255,.6);
}
.product-ad a {
  text-decoration: none;
  display: inline-block;
  padding: .55rem 1rem;
  border-radius: 999px;
  font-weight: 700;
  color: #001a14;
  background: linear-gradient(135deg, #00e6ff 0%, #ff6f61 100%);
  box-shadow: 0 6px 16px rgba(0,0,0,.25);
}
.product-ad a:focus-visible {
  outline: 3px solid var(--bg-cyan);
  outline-offset: 2px;
}
.product-ad a:hover {
  transform: translateY(-1px);
}
footer p {
  margin: 8px 0 0;
  font-size: .9rem;
  color: rgba(230,255,255,.8);
}

/* Responsive tweaks */
@media (min-width: 768px) {
  main { padding: 64px 0; }
  .image-frame { padding: 18px; border-radius: 22px; }
  .product-ad h3 { font-size: 1.05rem; }
}