:root {
  --ink:#192635; --muted:#617084; --line:#dfe5eb;
  --bg:#f8fafb; --white:#fff; --accent:#147d75;
  --dark:#172d37;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI",
  Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent)}
.wrap{width:min(1080px,calc(100% - 44px));margin:auto}
header{background:var(--white);border-bottom:1px solid var(--line)}
.header-inner{display:flex;justify-content:space-between;
  align-items:center;gap:20px;min-height:85px}
.brand{display:flex;align-items:center;gap:12px;
  font-size:20px;font-weight:750;letter-spacing:-.7px}
.brand-mark{width:37px;height:37px;border-radius:10px;
  background:var(--dark);color:white;display:grid;
  place-items:center;font-size:23px}
nav{display:flex;gap:28px;align-items:center}
nav a{font-size:14px;color:var(--muted)}
nav a[aria-current="page"]{color:var(--ink);font-weight:700}
main{padding-top:70px;padding-bottom:90px;min-height:65vh}
.eyebrow{font-size:12px;color:var(--accent);font-weight:750;
  text-transform:uppercase;letter-spacing:2px}
h1,h2,h3{line-height:1.17;letter-spacing:-.035em}
h1{font-size:clamp(36px,5.3vw,64px);margin:20px 0 24px;
  max-width:720px}
h2{font-size:30px;margin:0 0 18px}
h3{font-size:20px;margin:0 0 12px}
p{margin:0 0 18px}
.lead{font-size:19px;color:var(--muted);max-width:690px}
.hero{display:grid;grid-template-columns:1.55fr .85fr;
  align-items:center;gap:55px;padding:24px 0 88px}
.hero-side{background:var(--dark);color:#fff;
  padding:35px;border-radius:18px}
.hero-side p{color:#b6d0d2;font-size:14px}
.hero-side .number{font-size:12px;color:#8fd1c7;
  font-weight:700;letter-spacing:1px}
.hero-side strong{display:block;font-size:21px;line-height:1.3;
  margin:15px 0}
.button{display:inline-flex;background:var(--accent);color:white;
  border-radius:7px;padding:12px 20px;font-size:14px;
  font-weight:650;margin-top:12px}
.button:hover{background:#09685f;color:#fff}
.section-head{display:flex;justify-content:space-between;
  align-items:baseline;border-bottom:1px solid var(--line);
  padding-bottom:15px;margin-bottom:22px}
.section-head span{font-size:13px;color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:white;border:1px solid var(--line);
  border-radius:12px;padding:27px}
.card small{color:var(--accent);font-weight:700;
  letter-spacing:1px;font-size:11px}
.card p{color:var(--muted);font-size:14px;margin-bottom:0}
.article{max-width:780px}
.article h1{font-size:clamp(36px,5vw,53px)}
.article h2{font-size:25px;margin:36px 0 14px}
.article p,.article li{color:#4d5d6d}
.article ul{padding-left:22px}
.article code{background:#eaf0f2;padding:2px 6px;
  border-radius:4px;font-size:.9em}
.rule{border:0;border-top:1px solid var(--line);margin:32px 0}
.note{background:#eef5f3;border-left:3px solid var(--accent);
  padding:20px 22px;border-radius:0 8px 8px 0}
.note p{margin:0}
footer{border-top:1px solid var(--line);background:#fff}
.footer-inner{display:flex;justify-content:space-between;
  gap:20px;padding:34px 0;color:var(--muted);font-size:13px}
@media(max-width:760px){
  .header-inner{align-items:flex-start;flex-direction:column;
    padding:20px 0;gap:16px}
  nav{gap:17px;flex-wrap:wrap}
  main{padding-top:42px}
  .hero{grid-template-columns:1fr;gap:20px;padding-bottom:55px}
  .cards{grid-template-columns:1fr}
  .footer-inner{flex-direction:column;gap:8px}
}