/* Palette & Layout Tokens */
:root {
  --bg: #0a0a16;
  --bg-2: #1b1140;
  --text: #e9e0ff;
  --muted: #c6b7e6;
  --accent: #8a5cff;
  --accent-2: #6d3df2;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-strong: rgba(255, 255, 255, 0.18);
  --border: rgba(176, 150, 255, 0.32);
  --shadow: 0 10px 28px rgba(0,0,0,.25);
  --focus: 0 0 0 3px rgba(137, 95, 255, 0.65);
  --radius: 14px;
  --gap: 1rem;
  --text-on-glass: #f7f3ff;
}

/* Global & Background */

* { box-sizing: border-box; }
html, body { height: 100%; }
html, body, header, nav, main, article, footer, aside { display: block; }

html, body {
  margin: 0;
  color: var(--text);
  background: linear-gradient(135deg, #1a0a3a 0%, #0b002a 60%, #0a0010 100%);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  line-height: 1.5;
  min-height: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}

/* Subtle layered background: gradient + scanlines/noise (pure CSS) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  /* subtle glow accents */
  background-image:
    radial-gradient(circle at 20% 0%, rgba(138,92,255,.25), transparent 40%),
    radial-gradient(circle at 90% 20%, rgba(109,61,242,.15), transparent 40%),
    linear-gradient(rgba(10,0,40,.25), rgba(10,0,40,.25));
  background-blend-mode: screen, screen, overlay;
  filter: saturate(1.1);
  opacity: 0.9;
  /* scanlines / grid overlay for depth */
  /* faint grid pattern */
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px),
    radial-gradient(circle at 50% 50%, rgba(255,255,255,.04), transparent 60%);
  background-size: 4px 4px, 4px 4px, 100% 100%;
  background-position: 0 0, 0 0, 0 0;
  mix-blend-mode: overlay;
}

/* Layout containers & utilities */
.container {
  width: min(92%, 1100px);
  margin-inline: auto;
  padding-inline: 0.5rem;
}

.grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
}

.card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.95rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
@supports not (backdrop-filter: blur(12px)) {
  .card { background: rgba(255,255,255,.18); }
}

.tag {
  display: inline-block;
  padding: .15em .5em;
  border-radius: 999px;
  font-size: .75rem;
  background: rgba(138,92,255,.22);
  color: #f7f0ff;
  border: 1px solid rgba(255,255,255,.35);
}

/* Typography scale (system UI with fluid sizing) */
h1, h2, h3 { line-height: 1.2; margin: .25rem 0 .75rem; font-weight: 700; }
h1 { font-size: clamp(1.4rem, 1.5rem + 2vw, 2.4rem); }
h2 { font-size: clamp(1.2rem, 1rem + 1.5vw, 2rem); }
h3 { font-size: clamp(1rem, 0.8rem + 1vw, 1.25rem); }

/* Base layout sections */
header, nav, main, article, aside, footer { padding: 0; margin: 0; }
header {
  padding: 2rem 1rem;
  text-align: center;
}
header h1 {
  font-size: clamp(1.6rem, 2vw + 1rem, 2.6rem);
  margin: .15rem 0 .25rem;
  letter-spacing: .2px;
}
header .meta {
  color: var(--muted);
  font-size: clamp(0.9rem, 1.2vw, 1rem);
}

/* Navigation styling */
nav {
  margin-top: .75rem;
}
nav a {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .4rem .75rem;
  border-radius: 999px;
  color: var(--text);
  text-decoration: none;
  border: 1px solid rgba(255,255,255,.25);
}
nav a:hover { background: rgba(255,255,255,.08); }

/* Main content & article glass panel */
main {
  padding: 1rem 0 2rem;
}
article {
  max-width: min(900px, 100%);
  margin: 0 auto;
  padding: 1rem;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 14px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.featured-image,
.image-frame {
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.25);
  margin: 1rem auto;
  background: #111;
}
.image-frame { aspect-ratio: 16 / 9; }
.image-frame img,
.featured-image img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* Article content styles */
p { margin: .5rem 0 1rem; }
ul, ol { padding-left: 1.25rem; margin: .25rem 0 1rem; }
li { margin: .25rem 0; }
blockquote {
  margin: .5rem 0 1rem;
  padding-left: .75rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
  font-style: italic;
}
a { color: var(--accent-2); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; outline: none; }

/* Lists & checklists (utility styling) */
ul.checklist { list-style: disc; padding-left: 1.25rem; }
.checklist li { margin: .25rem 0; }

/* Button & CTA styles (interactive) */
a.btn,
a.cta,
button.btn,
button.cta,
.theme-btn {
  display: inline-block;
  padding: .6rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.45);
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease, border-color .2s;
}
a.btn:hover,
a.cta:hover,
button.btn:hover,
button.cta:hover,
.theme-btn:hover { transform: translateY(-1px); }
a.btn:active,
a.cta:active,
button.btn:active,
button.cta:active,
.theme-btn:active { transform: translateY(0); }

/* Focus rings for accessibility (focus-visible) */
:focus-visible {
  outline: none;
  box-shadow: var(--focus);
  z-index: 1;
  border-color: rgba(137,95,255,.9);
}
button:focus-visible { outline: none; }

/* Glass panels fallback for non-backdrop-filter browsers */
@supports not (backdrop-filter: blur(12px)) {
  article { background: rgba(255,255,255,.22); }
}

/* Product ad & footer sections (glass panels) */
.product-ad,
.sponsored-page {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: var(--radius);
  padding: .75rem;
  margin: .5rem 0;
  text-align: center;
}
.product-ad p, .sponsored-page p {
  margin: 0;
  font-weight: 600;
}
.product-ad a, .sponsored-page a {
  display: inline-block;
  margin-top: .25rem;
  padding: .5rem 1rem;
  border-radius: 999px;
  background: rgba(136, 110, 255, 0.95);
  color: #fff;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,.5);
}
.product-ad a:hover, .sponsored-page a:hover { background: rgba(136, 110, 255, 1); }

/* Footer typography & layout */
footer { padding: 1.5rem 1rem; text-align: center; }

/* Print styles (basic readability) */
@media print {
  body { background: #fff; color: #000; }
  a { text-decoration: underline; color: #000; }
  header, nav, main, article, aside, footer { background: transparent; color: #000; }
}