/* Production-ready CSS: future cyberpunk themed, mobile-first, glassy UI */

:root{
  --bg: #040b1a;
  --bg-2: #0b1f3a;
  --text: #e8f4ff;
  --muted: #a9c8e8;
  --accent: #4da3ff;       /* baby blue accent */
  --accent-2: #b8e0ff;     /* lighter accent for hover */
  --card: rgba(255,255,255,0.08);
  --card-border: rgba(255,255,255,0.25);
  --shadow: 0 8px 24px rgba(0,0,0,.28);
  --radius: 14px;
  --radius-sm: 10px;
  --focus: 0 0 0 3px rgba(77,163,255,.75);
  --link: #a4d0ff;
  --glow: 0 0 0 0 rgba(0,0,0,0);
}

/* Reset + base layout */
* { box-sizing: border-box; }
html, body { height: 100%; }
html { font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial; }
body {
  margin: 0;
  color: var(--text);
  background: 
    linear-gradient(135deg, rgba(6,12,28,.95) 0%, rgba(8,18,46,.92) 60%, rgba(12,28,64,.94) 100%),
    radial-gradient(circle at 20% 20%, rgba(80,140,255,.15), transparent 40%),
    radial-gradient(circle at 85% 70%, rgba(40,70,200,.12), transparent 40%),
    repeating-linear-gradient(to bottom, rgba(255,255,255,.03) 0 2px, transparent 2px 4px);
  background-blend-mode: overlay;
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
  overflow-x: hidden;
}

/* Focusable element visibility */
:focus-visible { outline: none; box-shadow: var(--focus); border-radius: 6px; }

/* Generic links & buttons */
a { color: var(--link); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; text-underline-offset: 3px; }
button, .btn, .cta { font-family: inherit; font-weight: 600; cursor: pointer; }

/* Layout utilities & components */
.container { max-width: clamp(320px, 90vw, 1100px); margin-inline: auto; padding: 0 1rem; }
.grid { display: grid; gap: 1rem; }
.card { background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }

/* Glass panel fallback for older browsers (no backdrop-filter) */
@supports not (backdrop-filter: blur(12px)) {
  .card { background: rgba(255,255,255,0.18); }
}
.image-frame { aspect-ratio: 16 / 9; width: 100%; border-radius: 12px; overflow: hidden; border: 1px solid rgba(255,255,255,.28); box-shadow: inset 0 0 0 1px rgba(255,255,255,.04), 0 8px 24px rgba(0,0,0,.25); }
.image-frame img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* Section-specific styles */
header, main, footer, aside { display: block; }
header { padding: 1rem; text-align: center; }
header h1 { font-size: clamp(1.75rem, 2.5vw + 1rem, 3rem); margin: .25rem 0 .25rem; line-height: 1.04; letter-spacing: .2px; }
header .meta { color: var(--muted); font-size: clamp(.9rem, .6vw + .9rem, 1.05rem); margin-top: .25rem; }
nav { margin-top: .25rem; display: inline-block; }
nav a { padding: .4rem .75rem; border-radius: 6px; border: 1px solid rgba(157,199,255,.32); background: rgba(17,64,131,.25); color: #eaf5ff; }
nav a:hover { background: rgba(120,170,255,.35); text-decoration: underline; }

/* Main content presentation */
main { padding: 1rem; }
article { display: block; padding: .5rem; }

/* Content typography */
article h1 { font-size: clamp(1.8rem, 4vw + 1rem, 2.8rem); line-height: 1.12; margin: .25rem 0 .75rem; color: #eaf4ff; }
article h2 { font-size: clamp(1.2rem, 2.6vw + .5rem, 1.6rem); margin: 1rem 0 .5rem; color: #dceeff; }
article h3 { font-size: clamp(1.05rem, 2.3vw + .4rem, 1.25rem); margin: .75rem 0; color: #d7eaff; }
article p { color: #dbeaff; margin: .8rem 0; }
blockquote { margin: .8rem 0; padding: .5rem 1rem; border-left: 3px solid rgba(77,163,255,.8); color: #eaf4ff; background: rgba(0,0,0,.15); border-radius: 8px; }

/* Lists */
ul { padding-left: 1.25rem; margin: .75rem 0; color: #dbeaff; }
li { margin: .25rem 0; }

/* Utility elements & components */
.product-ad, .sponsored-page { padding: .75rem; border-radius: var(--radius-sm); display: block; }
.product-ad { background: rgba(25,80,170,.25); border: 1px solid rgba(120,180,255,.5); text-align: center; }
.product-ad p, .sponsored-page p { margin: 0; }
.sponsored-page { background: rgba(25,25,40,.25); border: 1px solid rgba(120,120,180,.4); text-align: center; }

/* Image captioned sections etc. */
.featured-image { margin: 1rem 0; }

/* Footer layout / glass panels */
footer { padding: 1rem; display: grid; gap: .75rem; grid-template-columns: 1fr; }
footer .product-ad, footer .sponsored-page { display: block; }
footer p { margin: .25rem 0 0; color: #b9d6ff; font-size: .92rem; }

/* Print-friendly (basic readability) */
@media print {
  body { background: #fff; color: #000; }
  a, a:link { color: #000; text-decoration: underline; }
}

/* Responsive tweaks */
@media (min-width: 600px) {
  .container { padding: 0 1.25rem; }
  article { padding: 0 0.25rem; }
}
@media (min-width: 860px) {
  main { padding: 1.25rem 0; }
  footer { grid-template-columns: repeat(3, 1fr); }
  .image-frame { border-radius: 14px; }
}

/* Accessibility: motion preferences */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .card, .image-frame { transform: none !important; opacity: 1 !important; }
}

/* Glass panel helpers for content sections (used by .card where present) */
.content { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,.25); border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
@supports not (backdrop-filter: blur(12px)) {
  .content { background: rgba(255,255,255,0.18); }
}

/* Focus states for interactive elements beyond default anchors */
button:focus-visible, .btn:focus-visible, .cta:focus-visible {
  outline: none; box-shadow: var(--focus);
  border-radius: 6px;
}
.btn { display: inline-block; padding: .65rem 0.9rem; border-radius: 8px; border: 1px solid rgba(120,180,255,.55); background: linear-gradient(#4da3ff, #357bdc); color: #041e35; text-align: center; text-decoration: none; }
.btn:hover { filter: brightness(1.05); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--outline { background: transparent; color: var(--text); border: 1px solid rgba(138,198,255,.65); }

/* Small utility: tags for chips */
.tag { display:inline-block; padding:.25rem .5rem; font-size:.75rem; border-radius:999px; background: rgba(77,163,255,.18); border:1px solid rgba(120,180,255,.4); color:#eaf6ff; }

/* Ensure legacy browsers render a readable baseline for headings on dark bg */
h1, h2, h3, p { text-rendering: optimizeLegibility; }