:root{
  --ink:#17272C; --body:#3D4E52; --paper:#FBFBF8; --band:#EEF3EE;
  --line:#D6DED7; --green:#1C6650; --green-ink:#134A39;
}
*{box-sizing:border-box}
html{font-size:17px}
body{margin:0;font-family:"Commissioner",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--paper);color:var(--body);line-height:1.65;
  font-optical-sizing:auto}
h1,h2,h3{color:var(--ink);line-height:1.18;letter-spacing:-0.015em;font-weight:750}
h1{font-size:clamp(1.7rem,4.5vw,2.7rem);margin:.2em 0 .5em}
h2{font-size:clamp(1.25rem,3vw,1.6rem);margin:1.8em 0 .5em}
p,ul,ol{max-width:62ch}
a{color:var(--green-ink)}
a:focus-visible,button:focus-visible{outline:2px solid var(--green-ink);outline-offset:2px}
main{padding:0 1.25rem;max-width:70rem;margin:0 auto}
section{margin:2.5rem 0}

/* header */
.site-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:1rem 1.25rem;max-width:70rem;margin:0 auto;border-bottom:1px solid var(--line)}
.brand{font-weight:750;font-size:1.15rem;color:var(--ink);text-decoration:none;letter-spacing:-0.01em}
.brand span{font-weight:400}
.brand i,.brand-f i{font-style:normal;color:var(--green)}
.nav{display:flex;gap:1.4rem}
.nav a{text-decoration:none;color:var(--ink);padding:.2rem 0;border-bottom:2px solid transparent}
.nav a.on,.nav a:hover{border-bottom-color:var(--green)}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:0;
  padding:.45rem .8rem;font:inherit;color:var(--ink);cursor:pointer}
@media (max-width:640px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;right:1.25rem;top:3.6rem;background:var(--paper);
    border:1px solid var(--line);flex-direction:column;gap:0;padding:.4rem 0;min-width:12rem;z-index:10}
  .nav.open{display:flex}
  .nav a{padding:.6rem 1rem;border-bottom:none}
  .nav a.on{color:var(--green-ink);font-weight:600}
  .site-head{position:relative}
}

/* hero */
.hero{padding-top:2.5rem}
.hero h1{max-width:22ch}
.lead{font-size:1.12rem;max-width:56ch}

/* big number motif */
.page-head{padding-top:2rem;border-bottom:1px solid var(--line);margin-bottom:1.5rem}
.bignum{display:block;font-weight:250;color:var(--green);
  font-size:clamp(3.2rem,9vw,6rem);line-height:1;letter-spacing:-0.02em}

/* services grid — ruled registry, not cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));
  border-top:1px solid var(--line);border-left:1px solid var(--line)}
.srv{display:flex;flex-direction:column;gap:.5rem;padding:1.1rem 1.2rem 1.3rem;
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  text-decoration:none;color:var(--ink);background:var(--paper)}
.srv .num{font-weight:250;font-size:2rem;line-height:1;color:var(--green)}
.srv .srv-t{font-weight:600;line-height:1.3}
.srv:hover{background:var(--band)}
.band{background:var(--band);margin:3rem -1.25rem;padding:2.2rem 1.25rem 2.6rem}
.band .grid .srv{background:transparent}
.band .grid .srv:hover{background:var(--paper)}
@media (min-width:70rem){.band{margin-left:calc((100% - 70rem)/2 * -1 - 1.25rem);margin-right:calc((100% - 70rem)/2 * -1 - 1.25rem);
  padding-left:calc((100% - 67.5rem)/2);padding-right:calc((100% - 67.5rem)/2)}}

/* steps */
.steps ol{counter-reset:s;list-style:none;padding-left:0;max-width:62ch}
.steps li{counter-increment:s;padding:.9rem 0 .9rem 2.8rem;position:relative;border-top:1px solid var(--line)}
.steps li::before{content:counter(s);position:absolute;left:0;top:.75rem;
  font-weight:250;font-size:1.6rem;color:var(--green)}

/* cta + buttons */
.cta{border:1px solid var(--line);padding:1.6rem 1.4rem 1.8rem;background:#fff}
.btn{display:inline-block;background:var(--green);color:#fff;text-decoration:none;
  padding:.65rem 1.2rem;font-weight:600;margin-right:.6rem}
.btn:hover{background:var(--green-ink)}
.btn.ghost{background:transparent;color:var(--green-ink);border:1px solid var(--green)}
.btn.ghost:hover{background:var(--band)}
.contact-card{border:1px solid var(--line);background:#fff;padding:1.2rem 1.4rem;max-width:34rem}

/* footer */
.site-foot{border-top:1px solid var(--line);margin-top:3.5rem;padding:2rem 1.25rem 2.5rem;
  max-width:70rem;margin-left:auto;margin-right:auto;
  display:grid;grid-template-columns:1fr 1fr;gap:1rem;font-size:.95rem}
.site-foot a{color:var(--body)}
.brand-f{font-weight:750;color:var(--ink);font-size:1.05rem;margin:0 0 .4rem}
.copy{grid-column:1/-1;color:#6b7a7d;border-top:1px solid var(--line);padding-top:1rem}
@media (max-width:520px){.site-foot{grid-template-columns:1fr}}
@media (prefers-reduced-motion:no-preference){
  .srv,.btn,.nav a{transition:background-color .15s ease,border-color .15s ease}
}