:root{
  --bg:#eef2f8;
  --surface:#ffffff;
  --surface-2:#f8fafc;
  --text:#0f172a;
  --muted:#475569;
  --line:rgba(15,23,42,.08);
  --shadow:0 14px 40px rgba(15,23,42,.08);
  --radius:24px;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  background:linear-gradient(180deg,var(--bg) 0%,#f7f9fc 100%);
  color:var(--text);
}
a{text-decoration:none;color:inherit}
.shell{max-width:1240px;margin:0 auto;padding:24px}
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:rgba(255,255,255,.85);backdrop-filter:blur(8px);
  border:1px solid var(--line);border-radius:999px;padding:12px 16px;box-shadow:var(--shadow);
  position:sticky;top:16px;z-index:10;
}
.brand{display:flex;align-items:center;gap:12px;font-weight:800}
.brand-mark{
  width:34px;height:34px;border-radius:999px;background:#0f172a;color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;
}
.nav{display:flex;gap:10px;flex-wrap:wrap}
.nav a{
  padding:10px 14px;border-radius:999px;border:1px solid transparent;color:var(--muted);font-size:14px;font-weight:700;
}
.nav a:hover,.nav a.active{background:#fff;border-color:var(--line);color:var(--text)}
.hero,.card,.grid-card{
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.hero{padding:32px;display:grid;gap:16px;margin-top:18px}
.eyebrow{
  margin:0;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:#64748b;font-weight:800;
}
h1{margin:0;font-size:clamp(36px,5vw,64px);line-height:.98;letter-spacing:-.05em}
.sub{margin:0;max-width:820px;font-size:18px;line-height:1.7;color:var(--muted)}
.hero-actions,.row-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 16px;border-radius:999px;border:1px solid var(--line);
  background:#fff;color:var(--text);font-size:14px;font-weight:800;cursor:pointer;
}
.btn.primary{background:#0f172a;color:#fff;border-color:#0f172a}
.btn.ghost{background:transparent}
.stats,.grid{
  display:grid;gap:16px;margin-top:18px;
}
.stats{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{padding:20px}
.stat-label,.mini-label{
  margin:0;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:#64748b;font-weight:800;
}
.stat-value{margin:8px 0 0;font-size:28px;letter-spacing:-.04em;font-weight:800}
.card-title{margin:10px 0 0;font-size:24px;line-height:1.05;letter-spacing:-.03em}
.card-copy,.mini-copy,li{color:var(--muted);font-size:15px;line-height:1.75}
.grid-card{padding:20px;display:grid;gap:12px}
.list{margin:0;padding-left:18px}
.badge{
  display:inline-flex;align-items:center;justify-content:center;
  padding:8px 12px;border-radius:999px;background:rgba(15,23,42,.06);
  border:1px solid var(--line);font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;
}
.badge.good{background:rgba(22,163,74,.10);color:#166534;border-color:rgba(22,163,74,.16)}
.badge.warn{background:rgba(245,158,11,.12);color:#92400e;border-color:rgba(245,158,11,.18)}
.two{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;margin-top:18px}
.playground{
  display:grid;gap:16px;background:rgba(255,255,255,.92);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;
}
.field{display:grid;gap:8px}
input,select,textarea{
  width:100%;padding:12px 14px;border-radius:14px;border:1px solid rgba(15,23,42,.12);
  background:#fff;color:var(--text);font-size:15px;
}
textarea{min-height:90px;resize:vertical}
pre{
  margin:0;white-space:pre-wrap;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:13px;line-height:1.7;color:#334155;
}
.footer-note{margin-top:18px;color:#64748b;font-size:13px}
@media (max-width:1100px){
  .stats,.grid,.two{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .topbar{border-radius:24px;align-items:flex-start}
  .stats,.grid,.two{grid-template-columns:1fr}
}


.brand-mark{
  display:none;
}
.brand-logo{
  width:34px;
  height:34px;
  object-fit:contain;
  display:block;
}