/* MetaQuantum Info Page Styles */
:root {
  --bg: #06090f;
  --bg-alt: #0b1420;
  --text: #d9f7ff;
  --muted: #9bd6e3;
  --primary: #00f6ff;
  --primary-600: #00c6d6;
  --card: #0e1b29;
  --border: rgba(0,255,255,0.15);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, -apple-system, Segoe UI, Roboto, Helvetica, Arial, Noto Sans, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 80% -10%, rgba(0,246,255,0.10), transparent),
              radial-gradient(900px 500px at -10% 25%, rgba(0,180,255,0.08), transparent),
              var(--bg);
}

/* Header (aligned with landing) */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(6,9,15,0.9); border-bottom: 1px solid var(--border); }
@supports ((backdrop-filter: blur(10px)) or (-webkit-backdrop-filter: blur(10px))) {
  .nav { backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); background: linear-gradient(180deg, rgba(6,9,15,0.85), rgba(6,9,15,0.65)); }
}
.nav-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-weight: 700; }
.brand img { width: 28px; height: 28px; border-radius: 6px; box-shadow: 0 0 8px rgba(0,255,255,.25); }
.nav-links { display: flex; gap: 18px; align-items: center; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 14px; }
.nav-links a:hover, .nav-links a.active, .nav-links a[aria-current="page"] { color: var(--text); font-weight: 600; }
.nav-toggle { display: none; }

/* Hero */
.hero-info { padding: 48px 20px 18px; border-bottom: 1px solid var(--border); background: linear-gradient(180deg, rgba(14,27,41,.5), rgba(6,9,15,.2)); }
.hero-inner { max-width: 1200px; margin: 0 auto; }
.title-gradient { background: linear-gradient(92deg, var(--primary) 0%, #6af3ff 35%, #baf7ff 70%, #ffffff 100%); -webkit-background-clip: text; background-clip: text; color: transparent; text-shadow: 0 0 18px rgba(0, 246, 255, 0.08); margin: 0 0 8px; font-size: clamp(26px, 3.1vw, 40px); }
.hero-info p { margin: 0 0 16px; color: var(--muted); }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* Buttons */
.button, .button-outline { padding: 9px 14px; border-radius: 10px; font-weight: 600; border: 1px solid var(--border); text-decoration: none; transition: transform .15s ease, box-shadow .2s ease; }
.button { background: linear-gradient(180deg, var(--primary), var(--primary-600)); color: #00242a; box-shadow: 0 0 18px rgba(0,246,255,.25); }
.button:hover { transform: translateY(-1px); box-shadow: 0 8px 28px rgba(0,246,255,.25); }
.button-outline { background: transparent; color: var(--text); }
.button-outline:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(0,246,255,.15); }
.button.small, .button-outline.small { padding: 6px 10px; font-size: 13px; }

/* Layout */
.doc-layout { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 260px 1fr; gap: 20px; padding: 20px; }

/* TOC */
.toc { position: sticky; top: 64px; align-self: start; border: 1px solid var(--border); background: var(--bg-alt); border-radius: 12px; padding: 12px; }
.toc-toggle { display: none; width: 100%; padding: 8px 10px; background: transparent; color: var(--text); border: 1px solid var(--border); border-radius: 8px; margin-bottom: 10px; }
.toc ol { list-style: decimal; margin: 0; padding: 0 0 0 18px; display: block; }
.toc a { color: var(--muted); text-decoration: none; display: block; padding: 6px 2px; border-radius: 6px; }
.toc a:hover, .toc a.active, .toc a[aria-current] { color: var(--text); background: rgba(0,255,255,0.06); }

/* Content */
.content { min-width: 0; }
.doc-section { margin-bottom: 28px; }
.doc-section h2 { margin: 0 0 8px; font-size: 22px; }
.doc-section p { color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.card { background: linear-gradient(180deg, rgba(14,27,41,.9), rgba(6,9,15,.9)); border: 1px solid var(--border); border-radius: 14px; padding: 14px; }
.card h3 { margin: 6px 0 6px; font-size: 16px; }
.card p { margin: 0; color: var(--muted); }
.card.media { display: flex; align-items: center; justify-content: center; }
.card img { max-width: 100%; height: auto; border-radius: 8px; }
.metrics-list { margin: 8px 0 0; padding: 0 0 0 16px; }
.big-num { font-size: 28px; font-weight: 700; margin-top: 8px; }
.steps { margin: 6px 0 0; padding: 0 0 0 18px; }

/* Focus & a11y */
.skip-link { position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.skip-link:focus { left: 16px; top: 10px; width: auto; height: auto; background: var(--card); color: var(--text); padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; z-index: 1000; }
.button:focus-visible, .button-outline:focus-visible, .nav-links a:focus-visible, .toc a:focus-visible, .nav-toggle:focus-visible, .toc-toggle:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

/* Toast */
.net-toast { position: fixed; bottom: 16px; right: 16px; background: var(--card); border: 1px solid var(--border); color: var(--text); padding: 10px 12px; border-radius: 10px; box-shadow: 0 8px 24px rgba(0,0,0,.25); }

/* Responsive */
@media (max-width: 980px) {
  .grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .doc-layout { grid-template-columns: 1fr; }
  .toc { position: static; }
  .toc-toggle { display: inline-flex; align-items: center; justify-content: space-between; }
  .toc ol { display: none; margin-top: 8px; }
  .toc ol.open { display: block; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; color: var(--text); background: transparent; border: 1px solid var(--border); padding: 6px 10px; border-radius: 8px; }
  .nav-links { display: none; position: absolute; right: 12px; top: 56px; background: var(--bg-alt); border: 1px solid var(--border); border-radius: 12px; padding: 10px; flex-direction: column; gap: 10px; }
  .nav-links.open { display: flex; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .button, .button-outline, .card { transition: none !important; }
}