html, body, header, nav, main, article, footer, aside {
  scroll-behavior: smooth;
}

:root {
  /* Palette derived from mustard yellow + crimson for a cyberpunk vibe */
  --bg: #0f0f0f;
  --bg-2: #141414;
  --text: #eae6d9;
  --muted: #c9c2a8;
  --accent: #d8b41b;      /* mustard/yellow */
  --accent-2: #c50922;     /* crimson */
  --glass: rgba(20, 20, 20, 0.38);
  --glass-2: rgba(20, 20, 20, 0.22);
  --card-border: rgba(255, 255, 255, 0.28);
  --shadow: 0 8px 24px rgba(0,0,0,0.55);
  --radius: 14px;
  --focus-ring: 3px solid color-m-mix(in oklab, #d8b41b 70%, #000 30%);
  --focus: 0 0 0 3px rgba(216,180,25,0.65);
  --ring: rgba(216,180,25,0.75);
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  background: linear-gradient(135deg, rgba(216,180,25,0.18) 0%, rgba(0,0,0,0.4) 60%), #0b0b0b;
  color: var(--text);
  margin: 0;
  font-family: ui-system, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  isolation: isolate;
}
html { color-scheme: dark; }
body {
  /* Layered background: gradient + subtle scanlines/noise via CSS */
  background-image:
    linear-gradient(180deg, rgba(0,0,0,0.65), rgba(0,0,0,0.9)),
    linear-gradient(135deg, rgba(216,180,25,0.10) 0%, rgba(196,16,16,0.10) 50%, rgba(216,180,25,0.10) 100%);
  background-blend-mode: overlay, normal;
  min-height: 100%;
}
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  /* subtle scanline texture */
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(0,0,0,0) 0,
    rgba(0,0,0,0) 1px,
    rgba(0,0,0,0.08) 1px,
    rgba(0,0,0,0.08) 2px
  );
  mix-blend-mode: overlay;
  opacity: 0.25;
}
@media (prefers-color-scheme: light) {
  html { color-scheme: light; }
  :root {
    --bg: #f6f3e8;
    --bg-2: #ffffff;
    --text: #111;
    --muted: #444;
    --accent: #b8890e;
    --accent-2: #8b1f2a;
    --glass: rgba(255,255,255,0.86);
    --glass-2: rgba(255,255,255,0.72);
    --card-border: rgba(0,0,0,0.08);
  }
  body::before { opacity: 0.3; }
  body { background: linear-gradient(135deg, rgba(184,137,14,0.08), rgba(255,255,255,0.85)); }
}

.container {
  width: 100%;
  max-width: clamp(320px, 90vw, 1100px);
  margin-inline: auto;
  padding: 1rem;
}

.header, header {
  display: block;
  padding: 1rem;
}
header {
  display: grid;
  gap: 0.25rem;
  justify-items: center;
  text-align: center;
  margin: 0 auto 1rem;
}
header h1 {
  font-size: clamp(1.8rem, 2.4vw + 1rem, 3.4rem);
  line-height: 1.08;
  margin: 0;
  letter-spacing: .4px;
  text-shadow: 0 0 14px rgba(216,180,25,0.6);
}
header .meta {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(0.8rem, 1.6vw, 0.95rem);
  color: var(--muted);
  opacity: 0.9;
}

/* Glass panel utility (fallback included) */
.glass {
  background: var(--glass);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
@supports not (backdrop-filter: blur(12px)) {
  .glass { background: rgba(14,14,14,0.65); border-color: rgba(255,255,255,0.2); }
}

/* Hero / main content */
main { padding: 1rem 0; }
.image-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.28);
  box-shadow: 0 8px 26px rgba(0,0,0,0.6);
  background: #000;
}
.image-frame img {
  width: 100%; height: 100%; object-fit: cover;
  display: block;
  filter: saturate(1.05);
  transition: transform .4s ease;
}
.image-frame:hover img { transform: scale(1.02); }
.content { padding: 0.5rem 0; }
.content p { color: var(--text); }

/* Lists and content helpers */
ul, li { margin: 0.6rem 0; padding: 0; list-style: none; }
li { padding-left: 1.2em; position: relative; }
li::before {
  content: "•";
  position: absolute; left: 0; color: var(--accent-2);
  font-weight: 700;
  line-height: 1;
}

/* Typography hierarchy */
h2 { font-size: clamp(1.6rem, 2.4vw + 0.8rem, 2.4rem); margin: .75rem 0 0.25rem; }
h3 { font-size: clamp(1.25rem, 1.8vw + 0.6rem, 1.6rem); margin: .75rem 0; }

/* Buttons and links */
a, button, .btn, .cta {
  color: inherit; text-decoration: none;
  font: inherit; cursor: pointer;
}
.btn {
  display: inline-block;
  padding: .75rem 1.25rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.28);
  background: linear-gradient(135deg, rgba(216,180,25,0.95), rgba(208,149,0,0.95));
  color: #0a0a0a;
  font-weight: 700;
  letter-spacing: .2px;
  transition: transform .2s ease, background .25s ease;
  box-shadow: 0 6px 16px rgba(0,0,0,0.5);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(216,180,25,0.65);
  outline-offset: 2px;
}
.btn.outline {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(216,180,25,0.8);
}
.btn.outline:hover {
  background: rgba(216,180,25,0.12);
}
.cta { text-transform: uppercase; letter-spacing: .6px; }

.product-ad, .sponsored-page {
  padding: .75rem;
}
.product-ad a, .sponsored-page a {
  display: block;
  padding: .75rem 1rem;
  border-radius: 8px;
  text-align: center;
  background: rgba(216,180,25,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--text);
}
.product-ad a:hover, .sponsored-page a:hover {
  background: rgba(216,180,25,0.25);
}
footer {
  padding: 1rem;
  display: grid;
  gap: .75rem;
  justify-items: center;
  text-align: center;
}
footer p { color: var(--muted); margin: .25rem 0; }

/* Layout utilities (grid, card, tag) */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.card {
  background: var(--glass);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
}
.tag {
  display: inline-block;
  padding: .15rem .5rem;
  border-radius: 999px;
  font-size: .75rem;
  border: 1px solid rgba(255,255,255,0.28);
  color: var(--text);
  background: rgba(0,0,0,0.25);
}
ul.tags { display:flex; flex-wrap: wrap; gap:.4rem; padding:0; margin:0; list-style:none; }

/* Accessibility: focus ring for interactive elements by default */
:focus-visible { outline: none; box-shadow: var(--focus); }

/* Print styles for readability (small) */
@media print {
  body { background: white; color: black; }
  a, a:visited { color: black; text-decoration: underline; }
  .glass { background: #f5f5f5; border: 1px solid #ddd; }
}
```