:root {
  /* Palette (obsidian + burgundy accents) */
  --bg: #0a0a0f;
  --bg-2: #11131a;
  --surface: rgba(14, 14, 22, 0.66);
  --surface-2: rgba(22, 22, 30, 0.72);
  --text: #eaeaf0;
  --muted: #a9a6ad;
  --accent: #8a1220;
  --accent-2: #cf2a4a;
  --border: rgba(255, 255, 255, 0.28);
  --frame: rgba(255, 255, 255, 0.28);
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.42);
  --radius: 14px;
  --gap: 1rem;
}

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

html, body, header, nav, main, article, aside, footer {
  height: auto;
}

/* Base */
html, body {
  height: 100%;
}
html { font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif; }
body {
  margin: 0;
  color: var(--text);
  background-color: var(--bg);
  /* Layered background: gradient + grid paper + subtle scanlines */
  background-image:
    linear-gradient(135deg, rgba(18, 0, 6, 0.85) 0%, rgba(6, 0, 12, 0.92) 60%),
    repeating-linear-gradient(to right, rgba(255,255,255,0.04) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(to bottom, rgba(255,255,255,0.04) 0 1px, transparent 1px 40px);
  background-size: 100% 100%, 40px 40px, 40px 40px;
  background-attachment: fixed, fixed, fixed;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  line-height: 1.55;
  letter-spacing: 0.2px;
  text-rendering: optimizeLegibility;
}

/* Layout helpers */
.container {
  width: 100%;
  max-width: clamp(640px, 83vw, 1120px);
  margin-inline: auto;
  padding-inline: 1rem;
}

.grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: rgba(12, 12, 20, 0.60);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 2px);
  padding: 1rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--text);
}

.image-frame {
  width: min(100%, 760px);
  aspect-ratio: 16 / 9;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.32);
  box-shadow: 0 6px 22px rgba(0,0,0,0.5), inset 0 0 0 1px rgba(255,255,255,0.05);
  margin: 1rem auto;
  background: #000;
}
.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(1.02);
}

/* Glass panels (fallback included) */
.glass {
  background: rgba(8, 8, 16, 0.58);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.no-backdrop {
  background: rgba(8, 8, 16, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.40);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: 0 6px 20px rgba(0,0,0,0.5);
}
@supports not (backdrop-filter: blur(8px)) {
  .glass, .no-backdrop { backdrop-filter: none; }
  .glass { background: rgba(8,8,16,0.90); }
}

/* Header / hero */
header {
  margin: 1rem auto;
  padding: 1.75rem;
  text-align: center;
}
header .title {
  font-family: inherit;
  font-weight: 700;
  font-size: clamp(1.8rem, 2.6vw + 1rem, 3.4rem);
  line-height: 1.15;
  margin: 0 0 0.5rem;
  letter-spacing: .2px;
}
header .meta {
  color: var(--muted);
  font-size: clamp(0.9rem, 0.8vw + 0.8rem, 1.05rem);
}
header {
  background: rgba(9, 0, 10, 0.60);
  border: 1px solid rgba(255,255,255,0.28);
  border-radius: var(--radius);
  padding: 1.75rem;
  max-width: clamp(320px, 90vw, 1100px);
  margin-inline: auto;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Main content */
main {
  display: block;
  padding: 1rem 0 2rem;
}
article {
  padding: 0;
}
article h2 {
  font-size: clamp(1.6rem, 1.6vw + 1rem, 2.6rem);
  margin: 0.75rem 0 0.25rem;
}
article h3 {
  font-size: clamp(1.1rem, 1vw + 0.8rem, 1.4rem);
  margin: 1rem 0 0.25rem;
}
article p {
  color: #f5f5f7;
  margin: 0.5rem 0 0.9rem;
  max-width: 68ch;
}
article ul {
  padding-inline-start: 1.2rem;
  margin: 0.6rem 0 0.9rem;
}
article li {
  margin: 0.25rem 0;
}
blockquote {
  margin: 0.75rem 0;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--accent-2);
  background: rgba(17, 0, 25, 0.4);
  border-radius: 8px;
  color: #fff;
}
article em { font-style: italic; }

.content { /* optional utility class for potential wrappers */ }

/* Product ad (footer) */
.product-ad {
  display: block;
  text-align: center;
  padding: 1rem;
  background: rgba(8, 8, 16, 0.62);
  border: 1px solid rgba(255,255,255,0.32);
  border-radius: var(--radius);
  margin: 1rem 0;
}
.product-ad h3 { margin: 0 0 0.25rem; }
.product-ad a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.45);
  background: linear-gradient(to bottom right, rgba(138,0,20,0.95), rgba(102,0,15,0.95));
  color: white;
  font-weight: 600;
  transition: transform .2s ease, background .2s ease;
}
.product-ad a:hover { transform: translateY(-1px); background: linear-gradient(to bottom right, rgba(150,0,22,1), rgba(90,0,12,1)); }
.product-ad a:focus-visible { outline: 3px solid var(--accent-2); outline-offset: 2px; }

/* Links & buttons */
a {
  color: var(--accent-2);
  text-decoration: none;
}
a:hover, a:focus-visible {
  text-decoration: underline;
  outline: none;
}
button, .btn, .cta {
  font-family: inherit;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.45);
  background: rgba(120,0,20,0.95);
  color: white;
  padding: 0.75rem 1.15rem;
  cursor: pointer;
  transition: transform .15s ease, background .2s ease;
}
.btn, .cta { display: inline-block; text-decoration: none; }
button:focus-visible, .btn:focus-visible, .cta:focus-visible {
  outline: 3px solid var(--accent-2);
  outline-offset: 2px;
}
button:hover, .btn:hover, .cta:hover {
  transform: translateY(-1px);
  background: rgba(140, 0, 22, 1);
}
button:active, .btn:active, .cta:active {
  transform: translateY(0);
  background: rgba(110,0,18,0.95);
}

/* Lists */
ul { padding-left: 1.25rem; margin: 0.6rem 0 0.9rem; }
li { margin: 0.25rem 0; }

/* Image frame (hero image) */
.hero-image { margin: 1rem 0; }

/* Navigation / Aside (styles for completeness) */
nav { display: block; }
aside { display: block; padding: 1rem; }

/* Print styles (basic readability) */
@media print {
  body { background: #fff; color: #000; }
  header, main, footer { background: transparent; box-shadow: none; }
  .image-frame { page-break-inside: avoid; }
  a { color: #000; text-decoration: underline; }
}

/* Accessibility & motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}
```