:root{
  --primary:#14532d;
  --secondary:#052e16;
  --accent:#ea580c;
  --bg:#ffffff;
  --surface:#f0fdf4;
  --surface-alt:#dcfce7;
  --text:#052e16;
  --muted:#6b7280;
  --border:#86efac;
  --row-alt:#f0fdf4;
  --radius:10px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.65;
  font-size:16px;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
a:hover{color:var(--accent)}
.container{max-width:1080px;margin:0 auto;padding:0 20px}
/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;
  box-shadow:0 2px 8px rgba(0,0,0,0.15);
}
.site-header .container{display:flex;flex-wrap:wrap;align-items:center;gap:16px;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:700;font-size:1.15rem}
.brand img{width:36px;height:36px}
.brand span{letter-spacing:0.3px}
nav.primary{margin-left:auto}
nav.primary ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
nav.primary a{
  color:#fff;text-decoration:none;padding:8px 12px;border-radius:6px;font-size:0.95rem;
  transition:background 0.15s ease;
}
nav.primary a:hover{background:rgba(255,255,255,0.15)}
/* Hero */
.hero{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;padding:56px 0 64px;
}
.hero h1{
  margin:0 0 12px;font-size:2.15rem;line-height:1.2;letter-spacing:-0.5px;
}
.hero .byline{color:#dcfce7;margin:0 0 18px;font-size:0.95rem}
.hero .lede{font-size:1.1rem;color:#f0fdf4;max-width:720px}
.cta-row{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}
.cta{
  display:inline-block;padding:12px 22px;border-radius:999px;font-weight:600;text-decoration:none;
  border:2px solid transparent;transition:transform 0.1s ease,box-shadow 0.15s ease;
}
.cta.primary{background:var(--accent);color:#fff}
.cta.primary:hover{background:#c2410c;color:#fff;transform:translateY(-1px);box-shadow:0 6px 14px rgba(0,0,0,0.2)}
.cta.ghost{background:transparent;color:#fff;border-color:#dcfce7}
.cta.ghost:hover{background:rgba(255,255,255,0.12);color:#fff}
/* Main */
main{padding:40px 0 60px}
main h2{
  font-size:1.5rem;margin:44px 0 14px;padding:10px 14px;
  border-left:5px solid var(--accent);background:var(--surface);border-radius:0 var(--radius) var(--radius) 0;
  color:var(--secondary);
}
main h3{font-size:1.15rem;margin:26px 0 10px;color:var(--secondary)}
main p{margin:0 0 14px}
main ul,main ol{padding-left:22px;margin:0 0 18px}
main ul{list-style:none;padding-left:0}
main ul li{position:relative;padding-left:26px;margin-bottom:8px}
main ul li::before{
  content:"➤";position:absolute;left:0;top:0;color:var(--accent);font-weight:700;
}
main ol{list-style:none;counter-reset:oli;padding-left:0}
main ol > li{
  position:relative;counter-increment:oli;padding-left:52px;margin-bottom:14px;min-height:38px;
}
main ol > li::before{
  content:counter(oli);position:absolute;left:0;top:0;
  width:36px;height:36px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem;
}
/* Tables */
.table-wrap{overflow-x:auto;margin:16px 0 22px;border-radius:var(--radius);border:1px solid var(--border)}
table{border-collapse:collapse;width:100%;min-width:520px;background:#fff}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--border);font-size:0.95rem;vertical-align:top}
thead th{
  background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;font-weight:600;
  border-bottom:none;
}
tbody tr:nth-child(even){background:var(--row-alt)}
/* ToC */
nav.toc{
  background:var(--surface-alt);border:1px solid var(--border);
  border-radius:var(--radius);padding:16px 20px;margin:20px 0 32px;
}
nav.toc h2{
  background:transparent;border:none;padding:0;margin:0 0 10px;font-size:1.05rem;color:var(--secondary);
}
nav.toc ol{padding-left:0;counter-reset:tocli;margin:0}
nav.toc ol li{padding-left:32px;min-height:0;margin-bottom:4px}
nav.toc ol li::before{
  width:22px;height:22px;font-size:0.75rem;top:2px;
}
nav.toc a{color:var(--secondary);text-decoration:none}
nav.toc a:hover{color:var(--accent);text-decoration:underline}
/* FAQ accordion */
.faq details{
  background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);padding:0;margin-bottom:12px;overflow:hidden;
  box-shadow:0 1px 3px rgba(20,83,45,0.05);
}
.faq summary{
  padding:14px 46px 14px 18px;cursor:pointer;font-weight:600;position:relative;list-style:none;
  background:var(--surface);color:var(--secondary);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"▼";position:absolute;right:16px;top:50%;transform:translateY(-50%);
  color:var(--accent);transition:transform 0.2s ease;font-size:0.85rem;
}
.faq details[open] summary::after{transform:translateY(-50%) rotate(180deg)}
.faq details[open] summary{background:var(--surface-alt)}
.faq details p{margin:14px 18px 16px}
/* Author box */
.author-box{
  margin:40px 0 20px;padding:22px;border-radius:var(--radius);
  background:linear-gradient(135deg,var(--surface),var(--surface-alt));
  border-left:5px solid var(--accent);
  display:flex;gap:20px;align-items:flex-start;
}
.author-box img{width:80px;height:80px;border-radius:50%;flex-shrink:0;background:#fff}
.author-box p{margin:0 0 4px}
.author-name{font-weight:700;color:var(--secondary);font-size:1.1rem}
.author-role{color:var(--muted);font-size:0.9rem;margin-bottom:8px !important}
.author-bio{color:var(--text);font-size:0.95rem;line-height:1.55}
/* Byline under H1 */
.byline{font-size:0.92rem}
/* Callouts */
.callout{
  background:var(--surface);border:1px solid var(--border);border-left:5px solid var(--accent);
  border-radius:var(--radius);padding:16px 20px;margin:20px 0;
}
.callout strong{color:var(--secondary)}
/* Illustration wrapper */
figure.illus{margin:24px 0;text-align:center}
figure.illus svg{max-width:100%;height:auto;display:inline-block}
figure.illus figcaption{color:var(--muted);font-size:0.88rem;margin-top:8px}
/* Footer */
.site-footer{
  background:var(--secondary);color:#dcfce7;padding:36px 0 28px;margin-top:50px;
}
.site-footer a{color:#fff;text-decoration:none}
.site-footer a:hover{color:var(--accent)}
.site-footer .cols{display:grid;grid-template-columns:1fr;gap:24px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:6px}
.site-footer h3{margin:0 0 10px;font-size:1rem;color:#fff}
.site-footer .disclaimer{
  margin-top:26px;padding-top:20px;border-top:1px solid rgba(255,255,255,0.15);
  font-size:0.85rem;color:#bbf7d0;
}
/* Cards / grid */
.card-grid{display:grid;grid-template-columns:1fr;gap:16px;margin:18px 0}
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;
  box-shadow:0 1px 3px rgba(20,83,45,0.05);
}
.card h3{margin-top:0}
.card a{color:var(--accent);font-weight:600}
/* Breakpoints */
@media (min-width:700px){
  .hero h1{font-size:2.55rem}
  .site-footer .cols{grid-template-columns:2fr 1fr 1fr}
  .card-grid{grid-template-columns:1fr 1fr}
}
@media (min-width:980px){
  .hero h1{font-size:2.9rem}
  .card-grid{grid-template-columns:1fr 1fr 1fr}
}

/* a11y additions */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);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}}