:root {
  --bg: #0b1020;
  --panel: #0e152b;
  --text: #e5e7eb;
  --muted: #9aa3b2;
  --brand: #7dd3fc;
  --brand-2: #a78bfa;
  --accent: #22d3ee;
  --ring: #94a3b8;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --panel: #f6f7fb;
    --text: #0f172a;
    --muted: #475569;
    --brand: #0ea5e9;
    --brand-2: #6d28d9;
    --accent: #0891b2;
    --ring: #cbd5e1;
  }
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 800px at 80% -10%, rgba(125,211,252,0.12), transparent 60%), 
              radial-gradient(900px 600px at -10% -10%, rgba(167,139,250,0.12), transparent 60%),
              var(--bg);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
a.underline { text-decoration: underline; text-underline-offset: 2px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; border-radius: 8px; }
.container { max-width: 1120px; margin: 0 auto; padding: 24px; }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; position: sticky; top: 0; backdrop-filter: blur(8px); background: linear-gradient(180deg, rgba(11,16,32,0.85), rgba(11,16,32,0.65)); border-bottom: 1px solid rgba(148,163,184,0.15); z-index: 50; }
.brand { display: inline-flex; align-items: center; gap: 12px; padding: 10px 0; }
.brand svg { width: 28px; height: 28px; }
.brand-name { font-weight: 700; letter-spacing: 0.2px; font-size: 18px; }
.menu { display: flex; gap: 18px; flex-wrap: wrap; }
.menu a { color: var(--muted); font-weight: 600; font-size: 14px; padding: 12px 0; }
.menu a.active, .menu a:hover { color: var(--text); }
.hero { padding: 72px 0 32px; text-align: left; }
.eyebrow { color: var(--accent); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; font-size: 12px; }
h1 { margin: 8px 0 12px; font-size: clamp(32px, 5.2vw, 52px); line-height: 1.05; }
.lead { font-size: clamp(18px, 2.2vw, 22px); color: var(--muted); max-width: 72ch; }
.cta { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 12px 16px; border-radius: 12px; border: 1px solid rgba(148,163,184,0.25); font-weight: 700; font-size: 14px; }
.btn.primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #0b1020; border: none; }
.btn:hover { transform: translateY(-1px); transition: transform 120ms ease; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin-top: 24px; }
.card { background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.02)); border: 1px solid rgba(148,163,184,0.15); padding: 18px; border-radius: 16px; min-height: 120px; }
.card h3 { margin: 4px 0 8px; font-size: 16px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.section { margin: 28px 0 8px; }
h2 { margin: 24px 0 8px; font-size: 26px; }
h3 { margin: 16px 0 6px; font-size: 18px; }
ul { margin: 0 0 8px 20px; }
kbd { background: rgba(148,163,184,0.18); border: 1px solid rgba(148,163,184,0.35); border-radius: 6px; padding: 1px 6px; font-size: 13px; }
.footer { border-top: 1px solid rgba(148,163,184,0.15); margin-top: 56px; padding-top: 24px; padding-bottom: 24px; color: var(--muted); font-size: 14px; }
.note { font-size: 12px; color: var(--muted); margin-top: 8px; }
.maincopy { max-width: 86ch; }
blockquote { border-left: 3px solid rgba(148,163,184,0.25); margin: 12px 0; padding: 6px 12px; color: var(--muted); }
code.inline { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; background: rgba(148,163,184,0.2); padding: 2px 6px; border-radius: 6px; font-size: 12px; }


/* === UnifieldLab Nav Patch (2025-10-22) === */
.navbar, header nav, .site-nav, .topbar {
  display: flex;
  align-items: center;
  gap: 18px;
}
.navbar img.logo, header nav img.logo, .site-nav img.logo, .topbar img.logo, img.site-logo, .brand img {
  height: 40px;              /* larger logo */
  width: auto;
  margin-right: 16px;
  vertical-align: middle;
}
.navbar a, header nav a, .site-nav a, .topbar a {
  margin: 0 14px;            /* more spacing between items */
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.navbar .brand, .site-nav .brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
@media (max-width: 760px){
  .navbar a, header nav a, .site-nav a, .topbar a { margin: 0 10px; }
  .navbar img.logo, header nav img.logo, .site-nav img.logo, .topbar img.logo { height: 32px; }
}


/* === UnifieldLab Menu Color Patch (lighten) — 2025-10-22 === */
.navbar a, header nav a, .site-nav a, .topbar a {
  color: #f3f6ff !important;
}
.navbar a:hover, header nav a:hover, .site-nav a:hover, .topbar a:hover { color: #ffffff !important; }
.navbar a:visited, header nav a:visited, .site-nav a:visited, .topbar a:visited { color: #e8ecff !important; }