:root{
  --maxw: 1120px;
  --midnight:#0B1F3B;
  --electric:#2563EB;
  --cloud:#F9FAFB;
  --slate:#64748B;
  --success:#16A34A;
  --amber:#F59E0B;
  --border:#E5E7EB;
  --shadow: 0 10px 30px rgba(11,31,59,.08);
  --radius: 18px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color:var(--midnight);
  background:linear-gradient(180deg, var(--cloud) 0%, #ffffff 60%);
  line-height:1.6;
}

a{color:var(--electric); text-decoration:none}
a:hover{text-decoration:underline}

.container{
  max-width: 980px;
  margin: 0 auto;
  padding: 18px 16px 60px;
}

.topbar{
  position:sticky; top:0;
  background:rgba(249,250,251,.85);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--border);
  z-index:10;
}

.topbar-inner{
  max-width: 980px;
  margin: 0 auto;
  padding: 10px 16px;
  display:flex;
  gap:12px;
  align-items:center;
  justify-content:space-between;
}

.brand{
  display:flex; align-items:center; gap:10px;
  font-weight:800;
  letter-spacing:.2px;
}

a.brand:hover{
  text-decoration:none;
}

.logo-dot{
  width:12px;height:12px;border-radius:50%;
  background: var(--electric);
  box-shadow: 0 0 0 5px rgba(37,99,235,.12);
}

.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(37,99,235,.10);
  color: var(--midnight);
  border: 1px solid rgba(37,99,235,.20);
  font-size: 12px;
}

.card{
  background:#fff;
  border:1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 18px;
  margin-top: 18px;
}

h1{
  font-size: clamp(22px, 3vw, 34px);
  line-height:1.2;
  margin: 10px 0 8px;
}
h2{
  font-size: clamp(18px, 2.2vw, 22px);
  margin: 22px 0 10px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}
h3{
  font-size: 16px;
  margin: 16px 0 6px;
  color: var(--midnight);
}
p,li{color:var(--midnight)}
.small{color:var(--slate); font-size: 13px}

.toc{
  display:grid;
  grid-template-columns: 1fr;
  gap:8px;
  padding: 0;
  margin: 12px 0 0;
  list-style:none;
}
.toc a{
  display:block;
  padding: 10px 12px;
  border:1px solid var(--border);
  border-radius: 14px;
  background: #fff;
}
.toc a:hover{
  border-color: rgba(37,99,235,.35);
  box-shadow: 0 6px 18px rgba(37,99,235,.10);
}

.callout{
  border-left: 4px solid var(--amber);
  background: rgba(245,158,11,.10);
  padding: 12px 12px;
  border-radius: 14px;
  margin: 14px 0;
}

.callout.success{
  border-left-color: var(--success);
  background: rgba(22,163,74,.10);
}

.container-wide{ max-width: var(--maxw); margin: 0 auto; padding: 0 18px; }

.footer{
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--slate);
  font-size: 13px;
}

.footer{
  margin-top: 26px;
  padding: 20px 0 26px;
  border-top: 1px solid rgba(229,231,235,.8);
  color: var(--slate);
  font-size: 13px;
}
.footer a{ color: var(--midnight); font-weight: 900; text-decoration:none; }
.footer a:hover{ text-decoration: underline; }

.kv{
  display:flex;
  flex-wrap:wrap;
  gap:10px 12px;
  margin-top: 10px;
}
.kv .pill{
  border:1px solid var(--border);
  background:#fff;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12.5px;
  color: var(--midnight);
}

@media (min-width: 860px){
  .toc{grid-template-columns: 1fr 1fr;}
}

@media (prefers-reduced-motion: reduce){
  *{scroll-behavior:auto}
}

/* Checkout consent snippet */
.consent{
  margin-top:14px;
  padding:12px 12px;
  border:1px solid var(--border);
  border-radius:14px;
  background:#fff;
}
.consent label{display:flex; gap:10px; align-items:flex-start; font-size:14px;}
.consent input{margin-top:3px; width:18px; height:18px; accent-color: var(--electric);}
.note{
  border-left:4px solid var(--electric);
  background: rgba(37,99,235,.08);
  padding: 12px 12px;
  border-radius: 14px;
  margin: 14px 0;
}