:root{
  --green:#2f7d2b;      /* primary: headings, links */
  --green-2:#256a22;    /* hover / darker */
  --green-dark:#1c4d1a; /* header text, footer background */
  --leaf:#5cbf3a;       /* bright leaf green from the logo */
  --leaf-pale:#d2e27f;  /* soft highlight */
  --blue:#1a6098;       /* "Factor 33" blue from the logo, darkened for AA text contrast */
  --ink:#1f2933;
  --muted:#55616f;
  --line:#e2ecdf;
  --bg:#ffffff;
  --bg-alt:#f4f8f0;
  --focus:#1f6fb2;
  --maxw:1080px;
}
*{box-sizing:border-box}
@media (prefers-reduced-motion: no-preference){
  html{scroll-behavior:smooth}
}
/* visible keyboard focus on every interactive element */
a:focus-visible,button:focus-visible,input:focus-visible,
select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:3px solid var(--focus);
  outline-offset:2px;
  border-radius:2px;
}
/* screen-reader-only text */
.sr-only{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
/* skip link */
.skip-link{
  position:absolute;left:8px;top:-48px;z-index:100;
  background:var(--green-dark);color:#fff;padding:10px 16px;border-radius:0 0 6px 6px;
  text-decoration:none;font-weight:600;transition:top .15s ease;
}
.skip-link:focus{top:0}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  font-size:17px;
}
h1,h2,h3,h4{font-family:Georgia,"Times New Roman",serif;line-height:1.25;color:var(--green-dark);font-weight:600}
h1{font-size:2.4rem;margin:0 0 .5em}
h2{font-size:1.7rem;margin:0 0 .6em}
h3{font-size:1.2rem;margin:0 0 .4em}
/* links are underlined by default so they are distinguishable by more than colour (WCAG 1.4.1) */
a{color:var(--green);text-decoration:underline}
a:hover{text-decoration:none}
/* UI chrome opts out of the underline; it is distinguishable by shape/context */
.nav a,.btn,a.card,.brand a,.backlink,.skip-link,.site-footer .cols a{text-decoration:none}
.nav a:hover,a.card:hover,.backlink:hover,.site-footer .cols a:hover{text-decoration:underline}
.btn:hover{text-decoration:none}
p{margin:0 0 1.1em}
img{max-width:100%}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:64px 0}
.section.alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:700;color:var(--blue);margin-bottom:.6em}
.lead{font-size:1.15rem;color:var(--muted)}

/* header */
.site-header{border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);z-index:20}
.site-header .container{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:16px}
.brand{display:flex;align-items:center}
.brand a{display:flex;align-items:center;text-decoration:none}
.brand a:hover{text-decoration:none}
.brand-logo{height:46px;width:auto;flex:none}
.nav{display:flex;flex-wrap:wrap;gap:20px;align-items:center}
.nav a{color:var(--ink);font-size:.95rem}
.nav a:hover{color:var(--green)}
.nav a.btn{color:#fff}
.nav a.btn.ghost{color:var(--green)}
.btn{display:inline-block;background:var(--green);color:#fff;padding:10px 18px;border-radius:4px;font-size:.95rem;font-weight:600}
.btn:hover{background:var(--green-2);text-decoration:none}
.btn.gold{background:var(--leaf-pale);color:var(--green-dark)}
.btn.gold:hover{background:#c6da6b}
.btn.ghost{background:transparent;border:1px solid var(--green);color:var(--green)}
.btn.ghost:hover{background:var(--bg-alt)}
.nav-toggle{display:none;background:none;border:0;font-size:1.5rem;color:var(--green-dark);cursor:pointer}

/* hero */
.hero{background:linear-gradient(135deg,var(--green-dark) 0%,var(--green) 100%);color:#eef6ea;padding:88px 0}
.hero h1{color:#fff}
.hero p{color:#d6e8cf;font-size:1.2rem;max-width:640px}
.hero .actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* grid */
.grid{display:grid;gap:26px}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:26px}
.card h3{color:var(--green-dark)}
.card p:last-child{margin-bottom:0}
.card .tag{color:var(--green);font-weight:700;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase}
a.card:hover{text-decoration:none;border-color:var(--leaf);box-shadow:0 6px 20px rgba(47,125,43,.10)}

/* article */
.article{max-width:760px;margin:0 auto;padding:56px 22px}
.article h1{font-size:2rem}
.article .meta{color:var(--muted);font-size:.9rem;margin-bottom:2em;border-bottom:1px solid var(--line);padding-bottom:1em}
.article h2{font-size:1.35rem;margin-top:1.6em}
.article .backlink{display:inline-block;margin-bottom:2em;font-size:.9rem}
.article ul{padding-left:1.4em;margin:0 0 1.1em}
.article li{margin-bottom:.5em}
.article code{background:var(--bg-alt);padding:1px 5px;border-radius:3px;font-size:.92em;word-break:break-word}
.callout{background:var(--bg-alt);border-left:3px solid var(--leaf);padding:14px 18px;margin:1.6em 0;font-size:.97rem}

/* contact */
.contact-block{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-block .label{font-weight:700;color:var(--green-dark);margin-bottom:.2em}

/* footer */
.site-footer{background:var(--green-dark);color:#c4d8bd;padding:44px 0;font-size:.92rem}
.site-footer a{color:#e2efd9}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:.6em}
.footer-logo{height:auto;width:210px;max-width:80%;background:#fff;border-radius:6px;padding:10px 14px;margin-bottom:14px;display:block}
.site-footer .fine{margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.15);color:#9dbf92;font-size:.85rem}

@media (max-width:860px){
  .grid.cols-3,.grid.cols-2{grid-template-columns:1fr}
  .contact-block{grid-template-columns:1fr}
  .site-footer .cols{grid-template-columns:1fr}
  h1{font-size:1.9rem}
  .hero{padding:60px 0}
  .brand-logo{height:38px}
  .nav{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;padding:16px 22px;border-bottom:1px solid var(--line);gap:14px}
  .nav.open{display:flex}
  .nav-toggle{display:block}
}