:root{
  --ink:#1c2a24;
  --muted:#6b7a72;
  --green:#1b4d3e;
  --green-soft:#e9efec;
  --paper:#fbfaf7;
  --line:#e2e6e2;
  --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Arial,"PingFang SC",sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}

/* nav */
.nav{
  position:sticky;top:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;
  background:rgba(251,250,247,.9);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.brand{
  font-weight:700;letter-spacing:.18em;font-size:15px;text-decoration:none;color:var(--green);
}
.brand span{color:#9aa89f}
.nav nav a{
  margin-left:26px;text-decoration:none;font-size:14px;color:var(--muted);
}
.nav nav a:hover{color:var(--green)}

/* hero */
.hero{
  max-width:var(--max);margin:0 auto;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;
  align-items:center;padding:72px 24px 56px;
}
.hero-img img{
  border-radius:18px;aspect-ratio:4/5;object-fit:cover;
  box-shadow:0 24px 60px rgba(27,77,62,.16);
}
.eyebrow{
  font-size:12px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--muted);margin:0 0 14px;
}
h1{
  font-size:clamp(34px,4.6vw,56px);line-height:1.1;
  letter-spacing:-.02em;margin:0 0 20px;font-weight:700;
}
.lede{font-size:17px;color:#40544b;margin:0 0 30px;max-width:46ch}
.btn{
  display:inline-block;background:var(--green);color:#fff;
  padding:14px 30px;border-radius:999px;text-decoration:none;
  font-size:15px;font-weight:600;transition:.2s;
  border:1px solid var(--green);
}
.btn:hover{background:#123a2e;transform:translateY(-1px)}
.btn.small{padding:10px 22px;font-size:14px;margin-top:8px}
.micro{font-size:12px;color:var(--muted);margin:14px 0 0}

/* strip */
.strip{
  max-width:var(--max);margin:0 auto;
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.strip p{
  background:var(--paper);margin:0;padding:26px 22px;
  font-size:14px;color:var(--muted);text-align:center;
}
.strip strong{display:block;font-size:26px;color:var(--green);font-weight:700;margin-bottom:4px}

/* sections */
section h2{
  font-size:clamp(24px,3vw,34px);letter-spacing:-.01em;margin:0 0 10px;font-weight:700;
}
.products,.split,.steps,.faq,.contact{
  max-width:var(--max);margin:0 auto;padding:84px 24px;
}
.sub{color:var(--muted);margin:0 0 40px;max-width:60ch}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  display:flex;flex-direction:column;transition:.25s;
}
.card:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(27,77,62,.10)}
.card img{aspect-ratio:1/1;object-fit:cover}
.card-body{padding:22px;display:flex;flex-direction:column;flex:1}
.card h3{margin:0 0 6px;font-size:17px}
.card h3 span{
  display:block;font-size:12px;color:var(--muted);
  font-weight:400;letter-spacing:.08em;text-transform:uppercase;margin-top:4px;
}
.price{margin:6px 0 12px;font-size:20px;font-weight:700;color:var(--green)}
.price small{font-size:11px;font-weight:400;color:var(--muted);display:block}
.card p{font-size:14px;color:#4b5c54;margin:0 0 14px}
.card .btn{margin-top:auto;align-self:flex-start}

/* split */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  border-top:1px solid var(--line);
}
.split img{border-radius:16px;aspect-ratio:1/1;object-fit:cover}
.split p{color:#40544b;margin:0 0 16px}

/* steps */
.steps{border-top:1px solid var(--line)}
.steps ol{list-style:none;padding:0;margin:34px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.steps li{
  background:var(--green-soft);border-radius:14px;padding:26px;font-size:14px;color:#3c5048;
  counter-increment:s;
}
.steps li::before{
  content:counter(s);display:block;font-size:12px;letter-spacing:.16em;
  color:var(--green);font-weight:700;margin-bottom:10px;
}
.steps ol{counter-reset:s}
.steps strong{display:block;color:var(--ink);font-size:15px;margin-bottom:6px}

/* faq */
.faq{border-top:1px solid var(--line)}
.faq details{
  border-bottom:1px solid var(--line);padding:18px 0;
}
.faq summary{
  cursor:pointer;font-weight:600;font-size:15px;list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--muted);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq p{margin:12px 0 0;color:#4b5c54;font-size:14px;max-width:70ch}

/* contact */
.contact{
  border-top:1px solid var(--line);text-align:center;
}
.mail{font-size:22px;margin:8px 0 0}
.mail a{color:var(--green);text-decoration:none;border-bottom:1px solid #b9cbc2}

footer{
  border-top:1px solid var(--line);padding:34px 24px;text-align:center;
  font-size:13px;color:var(--muted);
}
footer p{margin:4px 0}

@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:32px;padding-top:40px}
  .hero-img img{aspect-ratio:3/2}
  .grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .steps ol{grid-template-columns:1fr}
  .strip{grid-template-columns:1fr}
  .nav nav a{margin-left:16px;font-size:13px}
}