:root{--ink:#12202f;--muted:#5f6f7e;--paper:#f7fafc;--card:#fff;--line:#dfe7ee;--accent:#1f7a6e;--accent2:#dff4ef;--warm:#f5b84b;--max:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);line-height:1.65}
a{color:#17685e;text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:#0f4d46}
.wrap{max-width:var(--max);margin:auto;padding:0 22px}
header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:70px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:850;letter-spacing:-.02em}.mark{width:34px;height:34px;border:3px solid var(--accent);border-radius:50%;display:grid;place-items:center;position:relative}.mark:after{content:"";width:3px;height:14px;background:var(--accent);transform:rotate(45deg);transform-origin:bottom;position:absolute;bottom:14px}.mark i{width:6px;height:6px;background:var(--warm);border-radius:50%}
nav{display:flex;gap:17px;flex-wrap:wrap}nav a{text-decoration:none;color:var(--muted);font-weight:650;font-size:.92rem}
.hero{padding:82px 0 56px;background:linear-gradient(135deg,#eef8f5,#f8fbfd 55%,#fff4dc)}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-weight:800;color:var(--accent);font-size:.78rem}
h1{font-size:clamp(2.35rem,5vw,4.6rem);line-height:1.02;letter-spacing:-.055em;margin:.18em 0;max-width:900px}h2{font-size:clamp(1.55rem,3vw,2.25rem);line-height:1.15;letter-spacing:-.035em;margin-top:2.2rem}h3{line-height:1.25}.lede{font-size:1.18rem;color:var(--muted);max-width:760px}
.btn{display:inline-block;background:var(--accent);color:white!important;text-decoration:none;padding:13px 18px;border-radius:10px;font-weight:800;margin:8px 8px 8px 0}.btn.alt{background:white;color:var(--ink)!important;border:1px solid var(--line)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:26px 0}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 8px 30px rgba(18,32,47,.04)}.card h3{margin-top:0}.kicker{color:var(--accent);font-weight:800;font-size:.82rem;text-transform:uppercase;letter-spacing:.08em}
main.article{max-width:820px;margin:52px auto;padding:0 22px}.article h1{font-size:clamp(2.25rem,5vw,3.9rem)}.meta{color:var(--muted);font-size:.9rem;border-bottom:1px solid var(--line);padding-bottom:18px}.note,.cta{border-radius:14px;padding:20px 22px;margin:28px 0}.note{background:#fff8e8;border:1px solid #f1ddb2}.cta{background:var(--accent2);border:1px solid #bfe4dc}.cta h3{margin-top:0}.toc{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 24px}.toc a{display:block;margin:5px 0}
table{width:100%;border-collapse:collapse;background:#fff;margin:24px 0}th,td{border:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}th{background:#eef5f7}
footer{margin-top:70px;background:#10202b;color:#dce7ec;padding:44px 0}footer a{color:#dce7ec}.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}.small{font-size:.88rem;color:#6d7d89}
@media(max-width:780px){nav{display:none}.grid{grid-template-columns:1fr}.hero{padding-top:56px}.foot{grid-template-columns:1fr}h1{font-size:2.6rem}}