* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

:root {
  --bg: #0b0f14;
  --panel: rgba(18, 24, 32, 0.75);
  --glass: rgba(22, 28, 38, 0.65);
  --cyan: #00e6ff;
  --cyan-soft: rgba(0,230,255,.9);
  --text: #e7fbff;
  --muted: #a8b3be;
  --shadow: 0 8px 40px rgba(0,0,0,.5);
}

body {
  min-height: 100vh;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter;
  color: var(--text);
  background-color: var(--bg);
  /* cyan striped pattern background + dark hacker vibe */
  background-image:
    linear-gradient(to bottom, rgba(0,0,0,.6), rgba(0,0,0,.6)),
    repeating-linear-gradient(
      45deg,
      rgba(0, 255, 255, 0.08) 0px,
      rgba(0, 255, 255, 0.08) 8px,
      transparent 8px,
      transparent 16px
    );
  background-blend-mode: overlay;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  min-height: calc(100vh - 180px);
}

.image-frame {
  width: 100%;
  max-width: 900px;
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(0, 255, 255, 0.25);
  background: rgba(10, 12, 16, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: var(--shadow);
  position: relative;
}

.image-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom right, rgba(0,0,0,.12), rgba(0,0,0,0));
  pointer-events: none;
  mix-blend-mode: overlay;
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

footer {
  padding: 1rem;
  text-align: center;
  color: #d9e8f5;
  background: rgba(2, 6, 12, 0.75);
  border-top: 1px solid rgba(0, 255, 255, 0.25);
}

.product-ad {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.5rem;
  padding: 0.75rem;
  margin: 0 auto 1rem;
  max-width: 900px;
  border-radius: 12px;
  background: rgba(15, 22, 32, 0.72);
  border: 1px solid rgba(0, 255, 255, 0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.product-ad h3 {
  margin: 0;
  font-size: 1.05rem;
  color: #c8fbff;
  text-shadow: 0 0 6px rgba(0, 226, 255, 0.6);
}

.product-ad a { text-decoration: none; display: inline-block; }

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

.product-ad a p {
  margin: 0;
  padding: 0.65rem 1rem;
  border-radius: 999px;
  color: #012e33;
  font-weight: 700;
  display: inline-block;
  background: linear-gradient(135deg, rgba(0, 230, 255, 0.95), rgba(0, 180, 255, 0.95));
  border: 1px solid rgba(0, 255, 255, 0.95);
  box-shadow: 0 0 14px rgba(0, 255, 255, 0.8);
  transition: transform 0.2s ease;
}
.product-ad a:hover p { transform: translateY(-1px); }

a { color: var(--cyan); text-decoration: none; }

a:hover, a:focus { text-decoration: underline; outline: none; }

@media (min-width: 600px) {
  main { padding: 3rem 2rem; min-height: calc(100vh - 200px); }
  .image-frame { border-radius: 18px; }
}
@media (min-width: 900px) {
  .image-frame { max-width: 980px; }
  footer { padding: 1.25rem 0; }
}