:root{
  --primary:#f59e0b;
  --secondary:#b45309;
  --accent:#5b21b6;
  --bg:#ffffff;
  --surface:#fffbeb;
  --surface-alt:#fef3c7;
  --text:#1a1108;
  --muted:#6b7280;
  --border:#fde68a;
  --row-alt:#fffbeb;
  --radius:10px;
  --shadow:0 4px 14px rgba(91,33,182,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.65;font-size:17px}
a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
a:hover{color:var(--secondary)}
img,svg{max-width:100%;height:auto}
header.site{position:sticky;top:0;z-index:50;background:linear-gradient(90deg,var(--primary),var(--secondary));color:#fff;box-shadow:var(--shadow)}
header.site .wrap{max-width:1120px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
header.site a{color:#fffbeb;text-decoration:none}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px}
.brand img{width:34px;height:34px;border-radius:8px;background:#fffbeb;padding:2px}
nav.primary ul{list-style:none;margin:0;padding:0;display:flex;gap:14px;flex-wrap:wrap;font-size:15px}
nav.primary a{padding:6px 8px;border-radius:6px}
nav.primary a:hover{background:rgba(255,255,255,.14)}
.hero{background:linear-gradient(135deg,var(--surface-alt) 0%,#fffbeb 55%,#f5e7ff 100%);padding:56px 20px 40px;border-bottom:1px solid var(--border)}
.hero .wrap{max-width:900px;margin:0 auto}
h1{font-size:34px;line-height:1.2;margin:0 0 12px;color:var(--text)}
.byline{color:var(--muted);font-size:14px;margin:0 0 22px}
.lede p{font-size:18px;margin:0 0 10px}
main{max-width:900px;margin:0 auto;padding:24px 20px 60px}
h2{font-size:26px;line-height:1.25;margin:44px 0 14px;padding:10px 14px;border-left:5px solid var(--primary);background:var(--surface);border-radius:0 var(--radius) var(--radius) 0}
h3{font-size:19px;margin:26px 0 10px;color:var(--secondary)}
p{margin:0 0 14px}
ul,ol{padding-left:0;margin:0 0 18px}
ul{list-style:none}
ul li{position:relative;padding:6px 0 6px 26px}
ul li::before{content:"\25B8";position:absolute;left:6px;top:6px;color:var(--primary);font-weight:700}
ol{counter-reset:step;list-style:none}
ol li{position:relative;padding:6px 0 6px 40px;counter-increment:step}
ol li::before{content:counter(step);position:absolute;left:0;top:6px;width:26px;height:26px;border-radius:50%;background:var(--accent);color:#fef3c7;text-align:center;font-size:13px;line-height:26px;font-weight:700}
nav.toc{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;margin:20px 0 28px}
nav.toc strong{display:block;margin-bottom:8px;color:var(--secondary)}
nav.toc ol{margin:0}
nav.toc ol li{padding:3px 0 3px 34px;font-size:15px}
.table-wrap{overflow-x:auto;margin:0 0 22px;border:1px solid var(--border);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:15px;background:#fff}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border)}
th{background:linear-gradient(90deg,var(--primary),var(--secondary));color:#fffbeb;font-weight:600}
tr:nth-child(even) td{background:var(--row-alt)}
details{border:1px solid var(--border);border-radius:var(--radius);margin:0 0 10px;background:#fff}
details summary{cursor:pointer;padding:12px 44px 12px 14px;font-weight:600;list-style:none;position:relative}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"\25BC";position:absolute;right:16px;top:14px;font-size:13px;color:var(--accent);transition:transform .2s}
details[open] summary::after{transform:rotate(180deg)}
details .body{padding:0 14px 14px}
.callout{border:1px solid var(--border);background:var(--surface);border-radius:var(--radius);padding:14px 16px;margin:0 0 18px}
.callout.warn{border-left:5px solid var(--secondary);background:#fef3c7}
figure{margin:22px 0;text-align:center}
figcaption{font-size:13px;color:var(--muted);margin-top:6px}
.author-box{border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin:36px 0 20px;background:linear-gradient(135deg,var(--surface),var(--surface-alt));display:flex;gap:16px;align-items:flex-start}
.author-box img{width:80px;height:80px;border-radius:50%;flex-shrink:0}
.author-box h3{margin:0 0 4px;color:var(--secondary)}
.author-box p{margin:0 0 6px;font-size:15px}
footer.site{background:var(--text);color:#fef3c7;padding:32px 20px;margin-top:40px}
footer.site .wrap{max-width:1120px;margin:0 auto;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:14px}
footer.site a{color:#fde68a}
.cta{display:inline-block;background:var(--accent);color:#fef3c7;padding:10px 18px;border-radius:var(--radius);text-decoration:none;font-weight:600;margin:8px 6px 8px 0}
.cta.alt{background:var(--primary);color:#1a1108}
.tag{display:inline-block;background:var(--surface-alt);color:var(--secondary);padding:2px 10px;border-radius:12px;font-size:12px;font-weight:600;margin-right:6px}
@media (min-width:700px){h1{font-size:40px}}
@media (min-width:980px){main{padding:32px 20px 80px}h1{font-size:44px}h2{font-size:28px}}

/* a11y additions */
.skip-link{position:absolute;left:-9999px;top:0;background:#92400e;color:#fff;padding:10px 16px;border-radius:4px;z-index:1000;text-decoration:none;font-weight:700}
.skip-link:focus{left:12px;top:12px}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
@media (prefers-reduced-motion: reduce){*,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}}