html, body, header, nav, main, article, aside, footer {
  margin: 0;
  padding: 0;
  border: 0;
  box-sizing: border-box;
}

*,
*::before,
*::after { box-sizing: border-box; }

:root {
  --bg: #050b10;
  --bg-2: #0b1620;
  --text: #e8fbff;
  --muted: #a8d5e7;
  --accent: #00e5ff;
  --accent-2: #a6ff2a;
  --surface: rgba(255, 255, 255, 0.08);
  --surface-2: rgba(0, 0, 0, 0.25);
  --border: rgba(0, 255, 255, 0.35);
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
  --radius: 14px;
  --focus: 0 0 0 3px rgba(0, 255, 255, 0.6);
  --gap: 1rem;
  --maxw: clamp(320px, 92vw, 1100px);
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f9fb;
    --bg-2: #eef3f8;
    --text: #0b1a22;
    --muted: #39515e;
    --surface: rgba(255, 255, 255, 0.95);
    --surface-2: rgba(0,0,0,0.08);
    --border: rgba(0, 0, 0, 0.15);
    --shadow: 0 6px 20px rgba(0,0,0,0.12);
  }
}
html, body { height: 100%; }
html { color-scheme: dark; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color: var(--text);
  background: linear-gradient(135deg, rgba(0, 255, 255, 0.08), rgba(0,0,0,0.0) 40%),
              #0a0f15;
  background-color: var(--bg);
  /* Diagonal cyan lines + subtle scanlines (pure CSS layered background) */
  background-image:
    repeating-linear-gradient(135deg, rgba(0,255,255,0.08) 0 2px, rgba(0,0,0,0) 2px 8px),
    linear-gradient(180deg, rgba(0,0,0,0.25), rgba(0,0,0,0) 60px);
  background-size: 40px 40px, 100% 100%;
  background-blend-mode: overlay;
  position: relative;
  overflow-x: hidden;
}
body::before {
  /* Subtle faux noise/scanline overlay (pure CSS) */
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: 
    linear-gradient(to bottom, rgba(255,255,255,.03) 0 1px, transparent 1px 2px),
    linear-gradient(to right, rgba(0,0,0,.04) 0 1px, transparent 1px 2px);
  background-size: auto 2px, 2px auto;
  mix-blend-mode: overlay;
  opacity: 0.6;
  z-index: 0;
}
:focus { outline: none; }
header, nav, main, article, aside, footer {
  display: block;
  position: relative;
  isolation: isolate;
}
.container {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 1rem;
}
.grid { display: grid; gap: var(--gap); }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
}
.tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.25em 0.5em;
  border-radius: 999px;
  border: 1px solid rgba(0, 255, 255, 0.35);
  color: var(--accent);
  background: rgba(0,255,255,0.08);
}
.image-frame {
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(0, 255, 255, 0.5);
  box-shadow: 0 6px 18px rgba(0,0,0,.25);
  background: #111;
}
.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(1.05);
  transform: scale(1);
  transition: transform 0.25s ease;
}
.image-frame:hover img { transform: scale(1.03); }

header {
  padding: 1.25rem 1rem;
  margin: 1rem auto;
  text-align: center;
  border-radius: var(--radius);
  background: rgba(12, 24, 40, 0.28);
  border: 1px solid rgba(0, 255, 255, 0.34);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
header h1 {
  font-size: clamp(1.8rem, 4vw + 0.5rem, 3rem);
  line-height: 1.05;
  margin: 0.25rem 0;
  letter-spacing: .5px;
}
header .meta {
  color: var(--muted);
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  margin-top: 0.25rem;
}
main { padding: 1rem; }
.article {
  display: block;
}
.featured-image { margin: 0 0 1rem 0; }
h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.25rem);
  margin: 0.75rem 0 0.25rem;
}
p { color: var(--muted); line-height: 1.6; margin: 0.5rem 0 1rem; }
blockquote {
  margin: 0.75rem 0;
  padding: 0.5rem 1rem;
  border-left: 3px solid var(--accent);
  background: rgba(0,0,0,0.15);
  border-radius: 6px;
  color: #e6fbff;
}
ul { margin: 0.75rem 0 1rem 1.25rem; color: var(--text); }
li { margin: 0.25rem 0; }

.product-ad, .sponsored-page {
  display: block;
  margin: 0.75rem 0;
  padding: 0;
}
.product-ad a, .sponsored-page a {
  display: block;
  text-decoration: none;
  color: var(--text);
  padding: 0.75rem 1rem;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(0, 255, 255, 0.4);
  text-align: left;
  transition: transform 0.2s ease, background 0.2s ease;
}
.product-ad a:hover, .sponsored-page a:hover {
  transform: translateY(-1px);
  background: rgba(0, 0, 0, 0.35);
}
footer {
  padding: 1rem;
  margin: 1rem auto;
  text-align: center;
  border-radius: var(--radius);
  background: rgba(12, 24, 40, 0.28);
  border: 1px solid rgba(0, 255, 255, 0.34);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
a, button, .btn, .cta {
  color: var(--text);
  text-decoration: none;
  border-radius: 10px;
  border: 1px solid transparent;
  background: transparent;
  padding: 0.55em 0.9em;
  display: inline-block;
  font: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
a:hover, a:focus-visible, button:hover, button:focus-visible, .btn:hover, .btn:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.btn {
  background: linear-gradient(135deg, var(--accent), #00b8a7);
  color: #002222;
  border: 1px solid rgba(0, 255, 255, 0.6);
  padding: 0.6em 1em;
  font-weight: 600;
  letter-spacing: .2px;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--outline {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(0, 255, 255, 0.6);
}
.cta { font-weight: 600; }

@media (min-width: 720px) {
  main { padding: 1.25rem 0; }
  .container { padding-inline: 1.25rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}
@media print {
  body { background: #fff; color: #000; }
  a { text-decoration: underline; color: #000; }
}
@supports not (backdrop-filter: blur(8px)) {
  header, main, footer, aside {
    background: rgba(12, 24, 40, 0.85);
    border: 1px solid rgba(0, 255, 255, 0.28);
    backdrop-filter: none;
  }
}
@media (max-width: 600px) {
  .grid { grid-template-columns: 1fr; }
  header { padding: 1rem; }
  .image-frame { aspect-ratio: 4 / 3; }
}
```