:root{--bg:#f7f8f5;--surface:#ffffff;--text:#17201b;--muted:#5f6f65;--line:#dfe6e1;--accent:#0a6f4f;--accent-2:#e9f5ef;--dark:#102119;--max:1180px;--shadow:0 14px 35px rgba(20,45,32,.08);--radius:18px}
*{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;background:var(--bg);color:var(--text);line-height:1.62}a{color:inherit;text-decoration-thickness:.08em;text-underline-offset:.18em}img{max-width:100%}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;padding:10px 14px;z-index:999;border-radius:8px}.wrap{width:min(var(--max),calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(247,248,245,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}.brand{display:flex;align-items:center;gap:10px;font-weight:850;text-decoration:none;letter-spacing:-.02em}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--dark);color:#fff}.nav-links{display:flex;gap:22px;align-items:center;flex-wrap:wrap}.nav-links a{text-decoration:none;color:var(--muted);font-weight:650}.nav-links a:hover,.nav-links a:focus{color:var(--text)}.hero{padding:78px 0 48px}.eyebrow{display:inline-flex;padding:7px 11px;border:1px solid #bdd9cb;background:var(--accent-2);border-radius:999px;color:#07593f;font-weight:750;font-size:.84rem}.hero h1{font-size:clamp(2.45rem,6vw,5rem);line-height:1.02;letter-spacing:-.055em;max-width:900px;margin:20px 0}.lead{font-size:clamp(1.08rem,2vw,1.32rem);max-width:760px;color:var(--muted)}.searchbox{margin-top:30px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:16px;padding:10px;display:flex;gap:8px;max-width:760px}.searchbox input{border:0;outline:0;width:100%;font:inherit;padding:10px 12px;background:transparent}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;background:var(--dark);color:#fff;padding:12px 18px;font-weight:800;text-decoration:none;cursor:pointer}.btn:hover{filter:brightness(1.08)}.btn.secondary{background:var(--surface);color:var(--text);border:1px solid var(--line)}.proof{display:flex;gap:24px;flex-wrap:wrap;margin-top:28px;color:var(--muted);font-size:.94rem}.proof strong{color:var(--text)}.section{padding:48px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}.section h2{font-size:clamp(1.75rem,3vw,2.55rem);letter-spacing:-.035em;margin:0}.section p{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 5px 18px rgba(20,45,32,.035)}.card:hover{border-color:#b9cfc2}.card a{text-decoration:none}.tag{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);font-weight:800}.card h3{margin:8px 0 8px;font-size:1.15rem;letter-spacing:-.02em}.card p{margin:0;color:var(--muted);font-size:.95rem}.arrow{display:inline-block;margin-top:16px;color:var(--accent);font-weight:800}.category-card{min-height:190px;display:flex;flex-direction:column;justify-content:space-between}.tool-layout{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(300px,.75fr);gap:32px;align-items:start}.crumbs{font-size:.88rem;color:var(--muted);margin:26px 0}.crumbs a{color:var(--muted)}.tool-head{padding:22px 0 28px}.tool-head h1{font-size:clamp(2.2rem,5vw,4.2rem);line-height:1.05;letter-spacing:-.05em;margin:14px 0}.calc-panel{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:var(--shadow);position:sticky;top:94px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-weight:750;font-size:.92rem}.input-wrap{display:flex;align-items:center;border:1px solid #cfd9d3;border-radius:11px;background:#fff;overflow:hidden}.input-wrap:focus-within{outline:3px solid rgba(10,111,79,.14);border-color:var(--accent)}.input-wrap input,.input-wrap select{width:100%;border:0;outline:0;padding:11px 12px;font:inherit;background:#fff;color:var(--text)}.suffix{padding:0 10px;color:var(--muted);font-size:.85rem;white-space:nowrap}.help{font-size:.78rem;color:var(--muted)}.check{display:flex;align-items:center;gap:9px;padding:10px 0}.result{margin-top:18px;background:var(--dark);color:#fff;border-radius:16px;padding:20px}.result small{opacity:.72}.result strong{display:block;font-size:clamp(1.65rem,4vw,2.45rem);letter-spacing:-.04em;line-height:1.1;margin:7px 0}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.metric{background:rgba(255,255,255,.09);padding:11px;border-radius:10px}.metric b{display:block}.content{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:30px}.content h2{margin-top:32px;font-size:1.6rem;letter-spacing:-.025em}.content h2:first-child{margin-top:0}.formula{background:#f0f5f2;border-left:4px solid var(--accent);padding:16px 18px;border-radius:0 10px 10px 0}.tiplist li{margin:8px 0}.related{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.related a{display:block;border:1px solid var(--line);border-radius:12px;padding:14px;text-decoration:none;font-weight:750;background:#fff}.related a:hover{border-color:#9fc2b0}.trust{background:var(--dark);color:#fff;border-radius:24px;padding:34px}.trust p{color:#c7d3cc}.footer{margin-top:54px;border-top:1px solid var(--line);padding:38px 0 48px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}.footer a{color:var(--muted)}.notice{font-size:.88rem;color:var(--muted)}.hub-title{padding:54px 0 20px}.hub-title h1{font-size:clamp(2.4rem,5vw,4rem);letter-spacing:-.05em;margin:.25em 0}.filterbar{margin:14px 0 28px}.filterbar input{width:min(560px,100%);padding:13px 15px;border:1px solid var(--line);border-radius:12px;font:inherit}.pill-row{display:flex;gap:8px;flex-wrap:wrap}.pill{display:inline-block;background:#edf3ef;border:1px solid #d8e4dd;border-radius:999px;padding:7px 10px;font-size:.84rem;text-decoration:none}.no-results{display:none;padding:24px;text-align:center;color:var(--muted)}.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:28px 0}.kpi{padding:18px;border:1px solid var(--line);border-radius:14px;background:#fff}.kpi b{font-size:1.5rem;display:block}.disclaimer{font-size:.82rem;color:var(--muted);margin-top:14px}.toc{background:#f3f6f4;border-radius:14px;padding:16px 18px}.toc a{display:block;margin:4px 0}.badge{display:inline-block;background:#eef6f1;color:#0a6f4f;border-radius:8px;padding:5px 8px;font-size:.78rem;font-weight:800}.mobile-note{display:none}
.calc-actions{margin-top:18px}.calc-submit{width:100%;min-height:50px;font-size:1rem}.calc-submit:focus-visible{outline:3px solid rgba(10,111,79,.28);outline-offset:3px}.calc-hint{display:block;margin-top:7px;text-align:center;font-size:.78rem;color:var(--muted)}
@media(max-width:880px){.grid{grid-template-columns:1fr 1fr}.tool-layout{grid-template-columns:1fr}.calc-panel{position:relative;top:auto}.footer-grid{grid-template-columns:1fr 1fr}.nav-links{display:none}.mobile-note{display:inline;font-size:.82rem;color:var(--muted)}.hero{padding-top:54px}}
@media(max-width:600px){.wrap{width:min(var(--max),calc(100% - 22px))}.grid,.fields,.related,.kpis{grid-template-columns:1fr}.hero h1{font-size:2.5rem}.calc-panel,.content{padding:18px}.footer-grid{grid-template-columns:1fr}.searchbox{flex-direction:column}.btn{width:100%}.result-grid{grid-template-columns:1fr 1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}


/* Search + AI readiness: readable answer blocks and static reference data */
.updated{font-size:.88rem;color:var(--muted);margin-top:.75rem}
.answer-card{margin:1.25rem 0 2rem;padding:1.15rem 1.25rem;border:1px solid #dce7e1;border-left:4px solid #0a6f4f;border-radius:16px;background:#fff}
.answer-card p{margin:.45rem 0 0;max-width:78ch}
.answer-label{display:inline-block;font-size:.78rem;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:#0a6f4f}
.answer-facts{display:grid;grid-template-columns:1fr;gap:.65rem;margin:1rem 0 0}
.answer-facts div{padding:.65rem .8rem;background:#f7faf8;border-radius:10px}
.answer-facts dt{font-size:.78rem;font-weight:800;text-transform:uppercase;color:var(--muted)}
.answer-facts dd{margin:.2rem 0 0}
.qa-block h3{margin-top:1.2rem;margin-bottom:.35rem}
.reference-links{margin-top:2rem;padding-top:.5rem}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #dce7e1;border-radius:14px;background:#fff}
.data-table{width:100%;border-collapse:collapse;min-width:620px}
.data-table th,.data-table td{text-align:left;padding:.8rem .9rem;border-bottom:1px solid #e8efeb;vertical-align:top}
.data-table th{background:#f1f6f3;font-size:.85rem}
.data-table tbody tr:last-child td{border-bottom:0}
.reference-content{max-width:920px;margin-bottom:3rem}
.mobile-menu{display:none;position:relative}.mobile-menu summary{cursor:pointer;font-weight:800;padding:8px 10px;border:1px solid var(--line);border-radius:10px;background:#fff;list-style:none}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-menu-links{position:absolute;right:0;top:46px;min-width:210px;display:grid;gap:2px;padding:8px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}.mobile-menu-links a{padding:10px 12px;text-decoration:none;border-radius:8px}.mobile-menu-links a:hover,.mobile-menu-links a:focus{background:#f1f6f3}
@media(max-width:880px){.mobile-menu{display:block}.mobile-note{display:none}}
@media(min-width:760px){.answer-facts{grid-template-columns:1fr 1fr}}