:root{
  --ink:#1f2937;--muted:#6b7280;--bg:#fafaf9;--line:#e7e5e4;
  --violet:#7C3AED;--violet-soft:#ede9fe;--board:#ffffff;
  --hw-latin:'Caveat';
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font:17px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans","Noto Sans Arabic",sans-serif}
a{color:var(--violet)}
.wrap{max-width:760px;margin:0 auto;padding:0 16px 48px}
.top{display:flex;align-items:center;justify-content:space-between;max-width:760px;margin:0 auto;padding:14px 16px}
.brand{display:flex;align-items:center;gap:8px;color:var(--ink);text-decoration:none;font-weight:700;font-size:18px}
.brand svg{width:26px;height:26px;color:var(--violet)}
.toplink{font-size:15px;text-decoration:none}
.crumbs{font-size:14px;color:var(--muted);margin:4px 0 10px;overflow-wrap:anywhere}
.crumbs a{color:var(--muted)}
.crumbs .sep{margin:0 6px}
h1{font-size:clamp(28px,7vw,40px);line-height:1.15;margin:6px 0 10px;letter-spacing:-.01em}
h2{font-size:20px;margin:32px 0 12px}
.lede{font-size:19px;margin:0 0 10px}
.meta{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 18px}
.pill{font-size:13px;font-weight:600;background:var(--violet-soft);color:#5b21b6;border-radius:999px;padding:3px 10px}

/* whiteboard */
.board{margin:18px 0 22px;background:var(--board);border:3px solid var(--violet);border-radius:14px;
  padding:6px 6px 0;box-shadow:0 1px 0 #fff inset,0 8px 24px -14px rgba(76,29,149,.45);position:relative}
.board::after{content:"";display:block;height:8px;margin:6px 18% -3px;border-radius:8px 8px 0 0;background:var(--violet);opacity:.85}
.board svg{display:block;width:100%;height:auto}
.board figcaption{font-size:14px;color:var(--muted);text-align:center;padding:2px 8px 0}
.board-mistake{border-color:#a78bfa}
.hw{font-family:var(--hw-latin),"Comic Sans MS",cursive}
.hw-ar{font-family:var(--hw-ar),"Noto Naskh Arabic","Geeza Pro",serif}
.hw-he{font-family:var(--hw-he),"Noto Sans Hebrew",sans-serif}
.hw-ja{font-family:var(--hw-ja),"Hiragino Maru Gothic ProN",sans-serif}
.hw-ko{font-family:var(--hw-ko),"Apple SD Gothic Neo",sans-serif}
.hw-zh{font-family:var(--hw-zh),"PingFang SC",sans-serif}
.hw-el{font-family:var(--hw-el),sans-serif}
.hw-ru{font-family:var(--hw-ru),cursive}
@media (prefers-reduced-motion:no-preference){
  .js .board .d{stroke-dasharray:1 1;stroke-dashoffset:1}
  .js .board.play .d{animation:draw .55s ease-out forwards;animation-delay:min(calc(var(--i,0) * 40ms),1.6s)}
  @keyframes draw{to{stroke-dashoffset:0}}
}
.board .strike{text-decoration:line-through;text-decoration-color:#dc2626;text-decoration-thickness:3px}
.vh{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* examples */
.examples ul{list-style:none;margin:0;padding:0}
.examples li{border-bottom:1px solid var(--line);padding:10px 0}
.examples li:last-child{border-bottom:0}
.ex-t{margin:0;font-size:19px;font-weight:500}
.ex-t b{color:#1d4ed8}
.ex-t s{color:#dc2626}
.ex-tr{margin:2px 0 0;color:var(--muted);font-size:16px}

/* CTA */
.cta{margin:34px 0 8px;padding:20px;border-radius:14px;background:var(--violet-soft);border:1px solid #ddd6fe}
.cta h2{margin:0 0 6px}
.cta p{margin:0 0 14px}
.btn{display:inline-block;background:var(--violet);color:#fff;text-decoration:none;font-weight:600;
  padding:12px 20px;border-radius:999px}
.btn:hover{background:#6d28d9}

/* related + hubs */
.related ul{padding-inline-start:20px;margin:0}
.related li{margin:6px 0}
.cards{list-style:none;margin:0;padding:0;display:grid;gap:12px}
@media (min-width:640px){.cards{grid-template-columns:1fr 1fr}}
.card{display:block;height:100%;padding:16px;border-radius:12px;background:#fff;border:1px solid var(--line);
  color:var(--ink);text-decoration:none}
.card:hover{border-color:var(--violet)}
.card strong{display:block;font-size:18px;margin-bottom:4px}
.card span{color:var(--muted);font-size:15px}
.hub-group h2 a{color:var(--ink);text-decoration:none}
.also{margin-top:32px;color:var(--muted)}
.foot{max-width:760px;margin:0 auto;padding:20px 16px 40px;color:var(--muted);font-size:14px;border-top:1px solid var(--line)}
.foot a{color:var(--muted)}
bdi,.ltr{unicode-bidi:isolate}