/* Global reset and color tokens for a beige paper + cyan hacker vibe */
:root {
  --paper: #f3e6cf;
  --cyan: #00e5ff;
  --cyan-dark: #008fa3;
  --text: #0b1b1a;
  --muted: #4b585b;
}
*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; }
body {
  margin: 0;
  color: var(--text);
  background-color: var(--paper);
  /* soft parchment texture: subtle crosshatch + paper tint */
  background-image:
    linear-gradient(0deg, rgba(0,0,0,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,.04) 1px, transparent 1px);
  background-size: 100% 2px, 2px 100%;
  font-family: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout: mobile-first, single column, prominent hero and CTA feel */
main {
  padding: 2rem 1rem 1.5rem;
  min-height: 60vh;
  display: block;
}
.image-frame {
  width: min(92vw, 860px);
  margin: 0 auto;
  border-radius: 16px;
  padding: 1.25rem;
  background: rgba(255,255,255,0.18); /* frosted glass look */
  border: 1px solid rgba(0, 230, 255, 0.5);
  box-shadow: 0 20px 40px rgba(0,0,0,.15);
  backdrop-filter: saturate(120%) blur(6px);
  -webkit-backdrop-filter: saturate(120%) blur(6px);
}
.image-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  /* slight cyber tint to logo-like image */
  filter: saturate(1.05) hue-rotate(-6deg);
  object-fit: cover;
}

/* Footer with a frosted glass product ad pill and copyright */
footer {
  text-align: center;
  padding: 1.5rem 1rem 2rem;
  color: #2a2d2a;
}
.product-ad {
  display: inline-block;
  padding: .65rem .95rem;
  border-radius: 12px;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(0, 230, 255, 0.5);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.product-ad h3 {
  margin: 0 0 .25rem;
  font-size: .95rem;
  color: var(--cyan);
}
.product-ad a {
  display: inline-block;
  text-decoration: none;
  color: #062b38;
  font-weight: 600;
  padding: .4rem .75rem;
  border-radius: 8px;
  border: 1px solid rgba(0,0,0,.15);
  background: linear-gradient(135deg, rgba(0,230,255,.95), rgba(0,180,240,.95));
}
.product-ad a:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
}
.product-ad a p { margin: 0; }

/* Focus visibility for all interactive elements to aid accessibility */
a:focus-visible, button:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 6px;
}

/* Responsive tweaks: open layout into a simple two-column feel for larger screens */
@media (min-width: 640px) {
  main { padding-top: 3rem; }
}
@media (min-width: 900px) {
  footer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
  }
  .image-frame { padding: 1.5rem; }
}