:root{--ink:#1b4332;--accent:#40916c;--soft:#e9f5ee;--accent2:#d8f3dc;--paper:#fbfefc;--muted:#5f6b70;--line:#d8e0e3;--shadow:0 12px 36px rgba(15,30,40,.1)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}a{color:var(--accent);text-decoration-thickness:.08em;text-underline-offset:.15em}.wrap{width:min(1320px,calc(100% - 36px));margin:auto}.skip{position:absolute;left:-999px;background:#fff;padding:8px;z-index:99}.skip:focus{left:8px}.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--paper) 94%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.navrow{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none;min-width:0}.brandmark{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:var(--ink);color:#fff;font-size:22px;font-weight:900;box-shadow:inset 0 0 0 3px color-mix(in srgb,var(--accent) 55%,transparent)}.brand span:last-child{display:flex;flex-direction:column;line-height:1.15}.brand small{font-size:11px;color:var(--muted);font-weight:650;max-width:390px}.navlinks{display:flex;gap:7px}.navlinks a{color:var(--ink);text-decoration:none;font-weight:800;padding:9px 10px;border-radius:10px}.navlinks a:hover{background:var(--soft)}.menubtn{display:none;border:1px solid var(--line);border-radius:10px;background:#fff;padding:8px 12px;font-weight:800}.hero{padding:74px 0 58px;background:linear-gradient(125deg,var(--soft),var(--paper) 62%);position:relative;overflow:hidden}.hero:after{content:"↔";position:absolute;right:5%;top:-55px;font-size:270px;line-height:1;color:color-mix(in srgb,var(--accent) 9%,transparent);font-weight:900;transform:rotate(-8deg)}.eyebrow{display:inline-flex;background:var(--accent);color:#fff;padding:5px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.1em;font-size:12px;font-weight:900}h1,h2,h3{line-height:1.12;margin-top:0}h1{font-size:clamp(2.4rem,6vw,5.2rem);letter-spacing:-.045em;max-width:960px;margin:17px 0}.lede{font-size:clamp(1.07rem,2vw,1.34rem);max-width:880px;color:color-mix(in srgb,var(--ink) 78%,white);margin:0 0 24px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.btn{display:inline-flex;padding:12px 17px;border-radius:12px;background:var(--ink);color:#fff;text-decoration:none;font-weight:850}.btn.secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}.hero-rule{display:flex;gap:8px;width:min(420px,80%);margin-top:38px}.hero-rule span{height:7px;border-radius:20px;flex:1;background:var(--accent)}.hero-rule span:nth-child(2){background:var(--accent2);flex:2}.hero-rule span:nth-child(3){background:var(--ink);flex:.6}.section{padding:62px 0}.section.alt{background:#fff;border-block:1px solid var(--line)}.section h2{font-size:clamp(1.75rem,3vw,2.7rem);letter-spacing:-.03em}.section-intro{max-width:850px;color:var(--muted);font-size:1.07rem}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:28px}.card{display:block;background:#fff;border:1px solid var(--line);border-radius:18px;padding:23px;color:var(--ink);text-decoration:none;box-shadow:0 3px 0 color-mix(in srgb,var(--accent) 22%,transparent)}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.card h3{font-size:1.2rem;margin-bottom:9px}.card p{color:var(--muted)}.card span{font-weight:900;color:var(--accent)}.metricband{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden;margin-top:28px}.metricband>div{background:var(--paper);padding:21px}.metricband strong{display:block;font-size:1.8rem}.crumbs{display:flex;gap:8px;flex-wrap:wrap;font-size:.9rem;color:var(--muted);padding-top:28px}.article{padding-bottom:68px}.article-head{padding:40px 0 24px;max-width:980px}.article-head h1{font-size:clamp(2.2rem,5vw,4.1rem)}.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:52px;align-items:start}.prose{font-size:1.03rem;min-width:0}.prose h2{font-size:1.72rem;margin-top:2.15em}.prose li{margin:.42em 0}.side{position:sticky;top:105px;display:grid;gap:16px}.sidebox{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.sidebox h2{font-size:1.05rem}.sidebox a{display:block;margin:.45em 0}.callout{padding:18px 20px;border-radius:14px;background:var(--soft);border-left:5px solid var(--accent);margin:24px 0}.callout.warn{background:#fff5e9;border-color:#c76500}.calcbox{max-width:860px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:var(--shadow)}.calcgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}label{display:block;font-weight:850}label span{display:block;font-size:.82rem;color:var(--muted);margin-bottom:5px}input{width:100%;border:1px solid #b8c4c9;border-radius:10px;padding:12px;font:inherit}input:focus{outline:3px solid color-mix(in srgb,var(--accent) 22%,transparent);border-color:var(--accent)}.calcbtn{margin-top:20px;border:0;border-radius:12px;background:var(--ink);color:#fff;padding:13px 18px;font:inherit;font-weight:900}.result{margin-top:20px;padding:20px;border-radius:14px;background:var(--soft);border:1px solid color-mix(in srgb,var(--accent) 35%,var(--line))}.result strong{font-size:1.45rem;display:block}.result span{display:block;color:var(--muted);margin-top:6px}.directory-head{padding:52px 0}.directory-head h1{font-size:clamp(2.2rem,5vw,4rem)}.faq details{background:#fff;border:1px solid var(--line);border-radius:13px;padding:16px 18px;margin:12px 0}.faq summary{font-weight:850;cursor:pointer}.site-footer{margin-top:40px;background:var(--ink);color:#dce4e6;padding:52px 0}.footergrid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:28px}.site-footer h2{font-size:1rem;color:#fff}.site-footer a{display:block;color:#e9f2f4;margin:7px 0}.site-footer p{font-size:.9rem;color:#c6d1d4}.footerbrand{color:#fff}.footerbrand .brandmark{background:var(--accent)}@media(max-width:900px){.cards{grid-template-columns:repeat(2,1fr)}.article-grid{grid-template-columns:1fr}.side{position:static;grid-template-columns:repeat(2,1fr)}.footergrid{grid-template-columns:repeat(2,1fr)}.metricband{grid-template-columns:repeat(2,1fr)}}@media(max-width:700px){.menubtn{display:block}.navlinks{display:none;position:absolute;left:18px;right:18px;top:70px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column}.navlinks.open{display:flex}.brand small{display:none}.cards,.calcgrid,.side,.footergrid,.metricband{grid-template-columns:1fr}.hero{padding:54px 0 44px}.hero:after{font-size:170px}}