/* Minimal, responsive, hacker-themed CSS with frosted glass and cyan geometry */

:root{
  --bg: #0a1020;
  --indigo: #4f46e5;
  --cyan: #00e5ff;
  --glass: rgba(255,255,255,.08);
  --glass-border: rgba(255,255,255,.25);
  --shadow: 0 14px 40px rgba(0,0,0,.45);
}

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

html, body { height: 100%; }

body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto;
  color: #e7fbff;
  background: var(--bg);
  /* Cyan geometric shapes background (techno-cyan hacker vibe) */
  background-image:
    radial-gradient(circle at 15% 20%, rgba(0,229,255,.28) 0 28%, transparent 28%),
    radial-gradient(circle at 70% 20%, rgba(0,229,255,.22) 0 26%, transparent 26%),
    radial-gradient(circle at 40% 70%, rgba(0,229,255,.18) 0 34%, transparent 34%),
    conic-gradient(from 180deg at 50% 50%, rgba(0,229,255,.12) 0 90deg, transparent 90deg 360deg),
    linear-gradient(#0a1020, #0a1020);
  background-blend-mode: screen, screen, screen, normal, normal;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  min-height: calc(100vh - 220px);
}

.image-frame {
  width: min(92vw, 720px);
  border-radius: 18px;
  padding: 1.25rem;
  background: rgba(10,12,40,.65);
  border: 1px solid rgba(140,210,255,.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
}

.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  outline: 1px solid rgba(255,255,255,.08);
}

footer {
  padding: 1.75rem 1rem;
  text-align: center;
  background: rgba(6,12,40,.55);
  border-top: 1px solid rgba(140,210,255,.25);
  color: #c8f1ff;
  backdrop-filter: blur(6px);
}

.product-ad { display: inline-block; padding: .6rem .9rem; border-radius: 999px; background: rgba(0,10,40,.8); border: 1px solid rgba(0,230,255,.55); margin-bottom: .75rem; }
.product-ad h3 { font-size: .92rem; margin: 0 0 .25rem; color: #b0f5ff; }
.product-ad a { text-decoration: none; display: inline-block; }
.product-ad a p { margin: 0; padding: 0; font-weight: 700; color: #eaffff; }

.product-ad a {
  /* prominent CTA button styling on the link (cyan gradient) */
  background: linear-gradient(135deg, #00e5ff 0%, #7af2ff 100%);
  color: #04111b;
  padding: .55rem 1.2rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.6);
  display: inline-block;
  font-weight: 800;
  text-decoration: none;
}
.product-ad a:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
}
.product-ad a:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(0, 229, 255, .6);
}
a { color: inherit; }

footer p { margin-top: .5rem; font-size: .92rem; color: #a6eaff; }

/* Focus visibility for keyboard users on interactive elements */
:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 8px;
}

/* Responsive: mobile-first, scale up gently on larger screens */
@media (min-width: 768px) {
  main { padding: 3rem 2rem; min-height: calc(100vh - 280px); }
  .image-frame { padding: 1.6rem; border-radius: 22px; }
  .image-frame img { border-radius: 16px; }
}