:root {
  /* Base palette (obsidian/gray influenced) */
  --bg: #0a0b10;
  --bg-2: #14161c;
  --surface: rgba(255, 255, 255, 0.08);
  --surface-2: rgba(255, 255, 255, 0.12);
  --text: #e9ecf6;
  --muted: #a8acb9;
  --accent: #7af0ff;
  --accent-2: #9b8cff;
  --border: rgba(255, 255, 255, 0.22);
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}

/* 1. Base & Layout */

html, body {
  height: 100%;
}
html {
  font-size: 16px;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  color: var(--text);
  background: #000;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  line-height: 1.5;
  /* Layered background: gradient + subtle scanlines/noise approximation */
  background-image:
    linear-gradient(135deg, rgba(10,12,18,0.95) 0%, rgba(14,16,22,0.98) 60%, rgba(8,9,12,0.98) 100%),
    repeating-linear-gradient(to bottom, rgba(255,255,255,0.04) 0 1px, rgba(255,255,255,0.0) 1px 2px),
    radial-gradient(circle at 20% 0%, rgba(0,180,240,0.08), transparent 40%),
    radial-gradient(circle at 65% 20%, rgba(140,0,140,0.08), transparent 40%);
  background-blend-mode: overlay, overlay, normal, normal;
  color-scheme: dark;
}
body {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

/* Utility containers & grids (authoritative, responsive) */
.container {
  width: 100%;
  max-width: clamp(320px, 90vw, 1100px);
  margin-inline: auto;
  padding-inline: 1rem;
}
.grid {
  display: grid;
  gap: 1rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  color: var(--text);
}
.tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.22);
  color: #eaf2ff;
}

/* 2. Typography & controls */

h1, h2, h3, h4 {
  margin: 0.25rem 0;
  line-height: 1.15;
}
h1 {
  font-size: clamp(1.4rem, 1.2rem + 2vw, 2.6rem);
  letter-spacing: .2px;
}
p {
  margin: 0.5rem 0 0;
  color: var(--muted);
}
a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
button, .btn, .cta {
  font-family: inherit;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.25);
  padding: 0.65rem 1rem;
  background: rgba(255,255,255,0.08);
  color: var(--text);
  cursor: pointer;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover, .cta:hover { transform: translateY(-1px); background: rgba(255,255,255,0.14); }
.btn.primary, .cta.primary {
  background: linear-gradient(135deg, rgba(122,240,255,0.95), rgba(155,140,255,0.95));
  color: #041018;
  border: 1px solid rgba(0,0,0,.25);
}
.btn:focus-visible, .cta:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; transform: none !important; }
}

/* 3. Glass panels (fallback if backdrop-filter not available) */

header, footer {
  background: rgba(20, 22, 28, 0.62);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 14px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}
@supports not (backdrop-filter: blur(12px)) and not (-webkit-backdrop-filter: blur(12px)) {
  header, footer {
    background: rgba(20, 22, 28, 0.78);
  }
}
header, main, footer {
  padding: 1rem;
}
header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.25rem;
  margin: 0.5rem 0 1rem;
}
nav {
  display: inline-flex;
  gap: 0.5rem;
  margin-top: 0.25rem;
}
nav a {
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--text);
}
nav a:hover { background: rgba(255,255,255,0.12); text-decoration: none; }

/* 4. Core layout of page sections */

main {
  flex: 1 1 auto;
}
.article {
  display: grid;
  gap: 1rem;
}
.image-frame {
  width: 100%;
  max-width: 920px;
  aspect-ratio: 16 / 9;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.28);
  background: rgba(0,0,0,0.25);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(1.05);
}
footer {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-items: start;
}
.product-ad, .sponsored-page {
  width: 100%;
  display: grid;
}
.product-ad a, .sponsored-page a {
  display: block;
  text-align: center;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  text-decoration: none;
  color: var(--text);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.22);
}
.product-ad a:hover, .sponsored-page a:hover {
  background: rgba(255,255,255,0.14);
}
footer p {
  text-align: center;
  color: var(--muted);
  margin: 0.25rem 0;
}
@media (min-width: 720px) {
  footer {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

/* 5. Print styles (basic readability) */

@media print {
  body {
    background: #fff;
    color: #000;
  }
  a { text-decoration: underline; }
  header, footer { background: transparent; border: none; box-shadow: none; }
  .image-frame { page-break-inside: avoid; }
}