/* Global reset and theme tokens */
:root {
  --maroon-1: #2b0000;
  --maroon-2: #5b0f0f;
  --maroon-3: #7a1f1f;
  --silver: #e5e9f0;
  --silver-dark: #cbd5e1;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.25);
  --radius: 14px;
  --shadow: 0 12px 28px rgba(0,0,0,.25);
}
*,
*::before,
*::after { box-sizing: border-box; }
html, body { height: 100%; }
html, body { margin: 0; padding: 0; }

/* Light, accessible baseline */
body {
  color: var(--silver);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: linear-gradient(135deg, #2d0000 0%, #5a0f0f 50%, #1b0b0f 100%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Hero layout: mobile-first, centered showcase */
main {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  min-height: 60vh;
  width: 100%;
}

/* Frosted glass image frame (hero) */
.image-frame {
  width: min(92%, 960px);
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: calc(var(--radius) * 1.15);
  padding: 1rem;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: var(--shadow);
  transition: transform .25s ease;
}
.image-frame:hover { transform: translateY(-2px); }

/* Contained image */
.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius) * 0.8);
  border: 1px solid rgba(255,255,255,.25);
}

/* Footer and promo card styling (futuristic, hacker vibe) */
footer {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--silver);
  background: linear-gradient(to top, rgba(0,0,0,.15), rgba(0,0,0,.0));
}
.product-ad {
  display: inline-block;
  padding: .75rem 1rem;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 12px;
  margin: 0 auto 1rem;
}
.product-ad h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 .4rem;
  color: #e8f2ff;
  text-shadow: 0 0 6px rgba(0,0,0,.3);
}
.product-ad a { text-decoration: none; }
.product-ad a p {
  display: inline-block;
  padding: .55rem .95rem;
  margin: 0;
  border-radius: 8px;
  color: #0a0a0a;
  background: linear-gradient(#ffffff, #e6eef7);
  border: 1px solid rgba(0,0,0,.15);
  font-weight: 700;
  box-shadow: 0 6px 12px rgba(0,0,0,.25);
}
.product-ad a:hover p { transform: translateY(-1px); }

/* Focus styles for accessibility (keyboard users) */
:focus-visible {
  outline: 2px solid #7bdcff;
  outline-offset: 2px;
  border-radius: 4px;
}
a:focus-visible, button:focus-visible { outline-offset: 2px; }

/* Responsive tweaks (mobile-first) */
@media (min-width: 600px) {
  main { padding: 3rem 2rem; }
}
@media (min-width: 900px) {
  /* Space for potential future layout; keep centered hero for clarity */
  main { grid-auto-flow: row; justify-items: center; }
}