/* SECTION: GLOBAL RESET & TOKENS */
:root {
  --bg: #041028;
  --bg-2: #051638;
  --text: #eafff4;
  --muted: #a9f0c9;
  --accent: #39ff87;
  --accent-2: #00e676;
  --glass: rgba(6, 12, 28, 0.65);
  --glass-border: rgba(0, 255, 128, 0.45);
  --radius: 14px;
  --shadow: 0 8px 28px rgba(0,0,0,.25);
}

/* SECTION: LAYOUT RESET */
* { box-sizing: border-box; }
html, body { height: 100%; }
html { -webkit-font-smoothing: antialiased; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: var(--text);
  line-height: 1.55;
  background:
    radial-gradient(circle at 20% 10%, rgba(57,255,135,.28), transparent 40%),
    radial-gradient(circle at 80% 20%, rgba(0,255,128,.18), transparent 40%),
    linear-gradient(#061027 0%, #04112a 60%, #031027 100%),
    repeating-linear-gradient(to bottom, rgba(255,255,255,.04) 0, rgba(255,255,255,.04) 1px, transparent 1px, transparent 4px);
  background-blend-mode: screen, screen, normal, overlay;
  min-height: 100%;
  padding-block: 0;
}

/* SECTION: BASE STRUCTURE VISUALS */
header, nav, main, article, aside, footer { display: block; }
nav { display: none; }

/* SECTION: RESPONSIVE TYPOGRAPHY */
h1, h2, h3 { margin: 0 0 .5rem; font-weight: 700; color: var(--text); }
p { margin: 0 0 1rem; color: var(--text); }
a { color: var(--accent); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; outline: none; color: var(--accent-2); }
img { display: block; max-width: 100%; height: auto; }

/* SECTION: LAYOUT UTILITIES */
.container {
  width: 100%; max-width: clamp(720px, 82vw, 1100px);
  margin-inline: auto; padding-inline: 1rem;
}
.grid { display: grid; gap: 1rem; }
.card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(0,255,128,.25);
  border-radius: 12px;
  padding: .75rem;
}
.tag {
  display: inline-block;
  padding: .15rem .5rem;
  font-size: .75rem;
  border-radius: 999px;
  color: var(--text);
  background: rgba(57,255,135,.25);
  border: 1px solid rgba(57,255,135,.5);
}

/* SECTION: GLASS PANELS & BACKDROP FALLBACKS */
.article-glass { /* fallback class if needed */ 
  background: rgba(4,12,30,.6);
  border: 1px solid rgba(0,255,128,.38);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.image-frame, .featured-image {
  width: 100%; border-radius: 12px; overflow: hidden;
  border: 1px solid rgba(0,255,128,.45);
  box-shadow: 0 8px 26px rgba(0,0,0,.25);
  background: #000;
}
.image-frame { aspect-ratio: 16/9; }
.image-frame img, .featured-image img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* SECTION: LAYOUT CONTENT STRUCTURE (HTML topics) */
header {
  width: 100%;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  gap: .5rem;
  text-align: center;
  margin: 0 auto;
  background: rgba(6,12,28,.60);
  border: 1px solid rgba(0,255,128,.45);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
header h1 { font-size: clamp(1.75rem, 1.2rem + 2.5vw, 3rem); text-shadow: 0 0 12px rgba(57,255,135,.25); }
header .meta { font-size: .9rem; opacity: .95; }

/* MAIN CONTENT */
main { padding: 1rem; }
article {
  background: rgba(4,12,30,.58);
  border: 1px solid rgba(0,255,128,.38);
  border-radius: 14px;
  padding: 1rem;
  margin: 1rem auto;
  max-width: min(1000px, 90vw);
  box-shadow: 0 6px 22px rgba(0,0,0,.25);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
article h1 { font-size: clamp(1.75rem, 0.9vw + 1.6rem, 3rem); margin-bottom: .25rem; }
article h2 { font-size: clamp(1.15rem, 0.8vw + 1rem, 1.6rem); margin: .75rem 0 .5rem; }
article h3 { font-size: clamp(1rem, 0.8vw + .9rem, 1.15rem); margin: .5rem 0; }
article p { color: var(--text); line-height: 1.6; }

/* SECTION: LISTS & QUOTES */
ul { padding-left: 1.25rem; margin: .25rem 0 1rem; }
li { margin: .25rem 0; color: var(--text); }
blockquote {
  margin: .75rem 0; padding-left: .75rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
  font-style: italic;
}

/* SECTION: FOOTER & ADS */
footer {
  padding: 1rem;
  display: grid; gap: 1rem; justify-items: center; text-align: center;
}
.product-ad {
  background: rgba(2,8,22,.62);
  border: 1px solid rgba(0,255,128,.5);
  border-radius: 12px;
  padding: 1rem;
  width: 100%; max-width: 420px;
  box-shadow: 0 6px 20px rgba(0,0,0,.25);
}
.product-ad h3 { margin: 0 0 .5rem; font-size: 1.05rem; }
.product-ad a {
  display: inline-block;
  padding: .5rem 0.75rem;
  border-radius: 6px;
  border: 1px solid rgba(0,255,128,.6);
  color: var(--text);
  text-decoration: none;
  background: rgba(0,0,0,.25);
}
.product-ad a:hover, .product-ad a:focus-visible { text-decoration: underline; outline: none; }

/* SECTION: INTERACTIONS (FOCUS RINGS) */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

/* SECTION: PRINT */
@media print {
  body { background: white; color: black; }
  a { color: #000; text-decoration: underline; }
  header, footer { page-break-after: avoid; }
}

/* SECTION: PREFERS REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}