/* Light reset and base styles */
*,
*::before,
*::after { box-sizing: border-box; }

html, body { height: 100%; }

:root {
  --bg: #000;
  --card: rgba(0,0,0,.25);
  --glass: rgba(255,255,255,.08);
  --border: rgba(255,255,255,.25);
  --text: #e6e6e6;
  --accent: #7a00ff;
  --accent-dark: #2a0066;
  --shadow: 0 15px 40px rgba(0,0,0,.6);
}

body {
  margin: 0;
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  background-color: var(--bg);
  /* purple diagonal lines background for hacker vibe */
  background-image:
    repeating-linear-gradient(135deg,
      rgba(122,0,255,.25) 0 2px,
      transparent 2px 6px);
  background-size: 100% 100%;
  min-height: 100vh;
}

/* Layout */
main {
  display: grid;
  place-items: center;
  padding: 4rem 1rem;
}

.image-frame {
  width: min(92vw, 760px);
  border-radius: 18px;
  padding: 12px;
  background: rgba(0,0,0,.28);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  overflow: hidden;
}

.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
}

/* Footer / CTA */
footer {
  padding: 20px 12px;
  text-align: center;
  color: #ddd;
}

/* Frosted glass panel for featured product (CTA) */
.product-ad {
  display: inline-block;
  padding: 12px;
  border-radius: 16px;
  background: rgba(255,255,255,.08);
  border: 1px solid var(--border);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.product-ad h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  line-height: 1.2;
}

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

.product-ad a p {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(135deg, #7a00ff, #2a0066);
  border: 1px solid rgba(255,255,255,.35);
  transition: transform .2s ease;
}
.product-ad a p:hover { transform: translateY(-1px); }

/* Focus accessibility for keyboard users */
a:focus-visible,
button:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
  border-radius: 6px;
}

/* Small screens: tighten up spacing (mobile-first) */
@media (max-width: 639px) {
  .image-frame { width: calc(100% - 2rem); padding: 10px; }
  .product-ad { padding: 10px; }
  .product-ad a p { padding: 11px 18px; }
}

/* Larger screens: gentle enhancements */
@media (min-width: 640px) {
  main { padding: 6rem 1rem; }
  .image-frame { width: min(70vw, 860px); padding: 14px; }
  .product-ad { padding: 14px; }
}

@media (min-width: 1024px) {
  .image-frame { border-radius: 22px; padding: 16px; }
  .product-ad a p { padding: 14px 26px; }
}