/* Global reset and design tokens */
:root {
  --teal: #2df0e6;
  --teal-dark: #0f8f8a;
  --red: #e01919;
  --red-deep: #7a0000;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.25);
  --bg1: #0b0b0f;
  --bg2: #120b0b;
  --shadow: 0 16px 40px rgba(0,0,0,.5);
}

/* Light reset */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

/* Mobile-first, cyberpunk aesthetic with red metallic sheen and teal accents */
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial, sans-serif;
  color: #eaffff;
  background: #0b0b0f;
  background-image:
    linear-gradient(135deg, rgba(180,0,0,.28) 0%, rgba(0,0,0,0) 40%),
    radial-gradient(circle at 20% 0%, rgba(0,0,0,.25), transparent 25%),
    linear-gradient(#170606, #0b0b0f);
  background-blend-mode: overlay, overlay, normal;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Hero section (image frame) */
main {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem 1rem;
}

.image-frame {
  width: min(960px, 92%);
  min-height: 60vh;
  margin: 0 auto;
  border-radius: 28px;
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 20px 60px rgba(0,0,0,.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  overflow: hidden;
  position: relative;
}

/* Subtle metallic sheen overlay to enhance red-cyber vibe */
.image-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(0, 255, 230, .08), rgba(0,0,0,0) 40%);
  pointer-events: none;
  mix-blend-mode: overlay;
}

.image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 14px 40px rgba(0,0,0,.6);
}

/* Frosted glass footer area with CTA emphasis */
footer {
  text-align: center;
  padding: 1.5rem;
}

.product-ad {
  display: inline-block;
  padding: .75rem 1rem;
  border-radius: 12px;
  background: rgba(0, 60, 60, 0.28);
  border: 1px solid rgba(0, 255, 230, 0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  margin-bottom: .75rem;
  color: #eaffff;
}

.product-ad h3 {
  font-size: 1rem;
  margin: 0 .25rem .25rem;
  color: #a8fff0;
  letter-spacing: .3px;
}

.product-ad a { text-decoration: none; display: inline-block; }
.product-ad a p {
  margin: 0;
  padding: .55rem 1rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #00f5d0, #00d2ba);
  color: #062626;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,.75);
  transition: transform .2s ease;
  display: inline-block;
  box-shadow: 0 4px 12px rgba(0,0,0,.3);
}
.product-ad a:hover p,
.product-ad a:focus-visible p {
  transform: translateY(-1px);
}
.product-ad a:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 2px;
  border-radius: 999px;
}

@media (min-width: 640px) {
  .image-frame { min-height: 64vh; }
  .product-ad { padding: .9rem 1.25rem; }
}

@media (min-width: 1024px) {
  .image-frame { width: min(980px, 86%); }
  footer { padding: 2rem 0; }
}