:root{--ink:#17261f;--muted:#617069;--forest:#17392e;--leaf:#2f7051;--leaf2:#4d8d62;--mint:#dcefd8;--mint2:#eef7ea;--sand:#f5f0e5;--cream:#fbfaf6;--clay:#b86748;--gold:#efb26c;--line:#d8dfd8;--white:#fff;--shadow:0 16px 44px rgba(23,57,46,.10);--shadow-sm:0 8px 22px rgba(23,57,46,.08);--radius:22px;--radius-sm:14px;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--cream);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}img,svg{max-width:100%;height:auto}a{color:var(--leaf);text-decoration-thickness:1.5px;text-underline-offset:3px}a:hover{color:#1f513b}.shell{width:min(var(--max),calc(100% - 40px));margin-inline:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(251,250,246,.96);border-bottom:1px solid rgba(23,57,46,.09);backdrop-filter:blur(14px)}.header-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;align-items:center;text-decoration:none}.brand img{width:210px;height:auto}.main-nav{display:flex;gap:8px;align-items:center}.main-nav a{display:inline-flex;padding:10px 12px;border-radius:10px;color:var(--forest);font-weight:760;text-decoration:none;font-size:.95rem}.main-nav a:hover,.main-nav a:focus-visible{background:var(--mint2);outline:none}.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:11px;padding:9px 12px;color:var(--forest);font-weight:800;gap:7px;align-items:center}.menu-icon{width:20px;height:20px}.hero{padding:72px 0 58px}.hero-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:52px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--leaf);font-size:.84rem;font-weight:850;letter-spacing:.12em;text-transform:uppercase}.eyebrow::before{content:"";width:26px;height:3px;border-radius:3px;background:var(--gold)}h1,h2,h3{font-family:Georgia,"Times New Roman",serif;line-height:1.07;letter-spacing:-.025em;color:var(--forest);margin-top:0}h1{font-size:clamp(2.65rem,6vw,5.25rem);margin-bottom:22px}h2{font-size:clamp(2rem,3.7vw,3.2rem);margin-bottom:18px}h3{font-size:1.45rem;margin-bottom:10px}.lede{font-size:1.17rem;color:#44564e;max-width:720px}.hero .lede{font-size:1.25rem;max-width:640px}.hero-actions,.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 18px;border-radius:13px;font-weight:850;text-decoration:none;border:2px solid transparent;transition:.18s ease}.btn-primary{background:var(--forest);color:#fff}.btn-primary:hover,.btn-primary:focus-visible{background:#0f2c23;color:#fff;transform:translateY(-1px)}.btn-secondary{background:#fff;color:var(--forest);border-color:#b8c9be}.btn-secondary:hover,.btn-secondary:focus-visible{border-color:var(--leaf);background:var(--mint2);color:var(--forest)}.hero-art{position:relative}.hero-art img{display:block;border-radius:28px;box-shadow:var(--shadow)}.hero-note{position:absolute;right:-14px;bottom:-18px;background:#fff;border:1px solid var(--line);padding:16px 18px;border-radius:15px;box-shadow:var(--shadow-sm);max-width:245px}.hero-note strong{display:block;color:var(--forest)}.trust-strip{padding:0 0 54px}.trust-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.trust-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 18px;display:flex;gap:11px;align-items:center;font-weight:760;color:#30453a}.trust-item .icon{width:24px;color:var(--leaf);flex:0 0 auto}.section{padding:68px 0}.section.tint{background:var(--mint2)}.section.sand{background:var(--sand)}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}.section-head>div{max-width:760px}.section-head p{margin:0;color:var(--muted)}.text-link{font-weight:850;white-space:nowrap}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.topic-card,.tool-card,.guide-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.18s ease}.topic-card:hover,.tool-card:hover,.guide-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.topic-card img{aspect-ratio:16/9;object-fit:cover;width:100%;display:block}.card-body{padding:22px}.card-kicker{display:flex;align-items:center;gap:8px;color:var(--leaf);font-size:.82rem;font-weight:850;text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px}.card-kicker .icon{width:20px}.topic-card p,.tool-card p,.guide-card p{color:var(--muted);margin:0 0 17px}.card-link{font-weight:850}.tool-card{padding:24px}.tool-card .tool-icon{width:46px;height:46px;display:grid;place-items:center;border-radius:14px;background:var(--mint);color:var(--forest);margin-bottom:18px}.tool-card .icon{width:25px}.tool-card h3{font-size:1.35rem}.pill-row{display:flex;gap:8px;flex-wrap:wrap}.pill{display:inline-flex;padding:6px 10px;border-radius:999px;background:var(--mint2);color:#345244;font-size:.78rem;font-weight:780}.feature-split{display:grid;grid-template-columns:.9fr 1.1fr;gap:42px;align-items:center}.feature-split img{border-radius:24px;box-shadow:var(--shadow-sm)}.steps{display:grid;gap:15px}.step{display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:start}.step-num{width:42px;height:42px;border-radius:50%;background:var(--forest);color:#fff;display:grid;place-items:center;font-weight:900}.step p{margin:3px 0 0;color:var(--muted)}.breadcrumbs{padding:24px 0 0;font-size:.88rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px}.breadcrumbs a{color:#456457;text-decoration:none}.page-hero{padding:38px 0 46px}.page-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}.page-hero h1{font-size:clamp(2.55rem,5vw,4.3rem)}.page-hero img{border-radius:24px;box-shadow:var(--shadow-sm)}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:start}.content-main{min-width:0}.side-card{position:sticky;top:100px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow-sm)}.side-card h2{font-size:1.3rem}.side-card a{display:block;padding:8px 0;font-weight:750}.calculator-wrap{background:#fff;border:1px solid #ccd8cf;border-radius:26px;padding:28px;box-shadow:var(--shadow);margin:10px 0 28px}.calculator-wrap h2{font-size:2rem}.calc-intro{color:var(--muted);margin-top:-6px}.calc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.field{display:flex;flex-direction:column;gap:7px}.field label{font-weight:820;color:#273e33}.input-shell{display:grid;grid-template-columns:1fr auto;border:1.5px solid #aebfb4;border-radius:12px;background:#fff;overflow:hidden}.input-shell input,.input-shell select{border:0;background:transparent;padding:13px 14px;font:inherit;color:var(--ink);min-width:0;outline:none}.input-shell:focus-within{border-color:var(--leaf);box-shadow:0 0 0 3px rgba(47,112,81,.15)}.unit{display:flex;align-items:center;padding:0 12px;background:#f2f6f2;border-left:1px solid #d5dfd7;color:#42574d;font-weight:800}.select-shell{border:1.5px solid #aebfb4;border-radius:12px;background:#fff}.select-shell select{width:100%;padding:13px 14px;border:0;background:transparent;font:inherit;color:var(--ink);outline:none}.calc-actions{display:flex;gap:12px;align-items:center;margin-top:20px;flex-wrap:wrap}.calc-actions button{cursor:pointer}.result-panel{margin-top:22px;background:linear-gradient(135deg,#17392e,#285840);color:#fff;border-radius:18px;padding:22px;display:none}.result-panel.is-visible{display:block}.result-panel h3{color:#fff;margin-bottom:14px}.result-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.result-stat{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:13px;padding:14px}.result-stat strong{display:block;font-size:1.35rem}.result-stat span{display:block;font-size:.82rem;color:#d9e9df}.calc-note{margin-top:16px;color:#51655b;font-size:.92rem}.formula-box,.callout{border-left:5px solid var(--gold);background:#fff7eb;border-radius:0 15px 15px 0;padding:18px 20px;margin:24px 0}.formula-box strong,.callout strong{color:var(--forest)}.prose{font-size:1.045rem}.prose h2{font-size:2.15rem;margin-top:42px}.prose h3{font-size:1.4rem;margin-top:28px}.prose p,.prose li{color:#3f5148}.prose ul,.prose ol{padding-left:1.25rem}.prose table{width:100%;border-collapse:collapse;margin:24px 0;background:#fff;border-radius:14px;overflow:hidden}.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}.prose th{background:var(--mint2);color:var(--forest)}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.mini-link{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:15px 16px;text-decoration:none;font-weight:800;color:var(--forest)}.mini-link:hover{border-color:#97b5a2;background:var(--mint2)}.topic-band{background:var(--forest);color:#fff;border-radius:26px;padding:30px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center}.topic-band h2{color:#fff;margin-bottom:8px}.topic-band p{color:#d7e5dc;margin:0}.topic-band .btn-secondary{border-color:#9eb5a8}.ad-slot{display:none}.ads-preview .ad-slot{display:grid;place-items:center;min-height:130px;border:2px dashed #a3b8ab;background:repeating-linear-gradient(135deg,#f8fbf8,#f8fbf8 10px,#eef5ee 10px,#eef5ee 20px);border-radius:16px;color:#3f5e4e;margin:28px auto;text-align:center;max-width:var(--max)}.ads-preview .ad-slot span{font-weight:900}.ads-preview .ad-slot small{display:block;font-size:.72rem;margin-top:3px}.hub-hero{padding:40px 0}.hub-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.hub-item{display:grid;grid-template-columns:54px 1fr;gap:15px;background:#fff;border:1px solid var(--line);border-radius:17px;padding:18px;text-decoration:none;color:inherit}.hub-item:hover{background:var(--mint2);border-color:#a8bfaf}.hub-icon{width:50px;height:50px;border-radius:14px;background:var(--mint);display:grid;place-items:center;color:var(--forest)}.hub-icon .icon{width:26px}.hub-item strong{display:block;color:var(--forest);font-size:1.05rem}.hub-item span{color:var(--muted);font-size:.91rem}.article-hero{padding:42px 0 28px}.article-shell{max-width:850px;margin:auto}.article-hero img{margin-top:22px;border-radius:24px;box-shadow:var(--shadow-sm)}.article-meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:.88rem;margin-top:12px}.guide-sections section{padding:12px 0}.guide-sections h2{font-size:2rem;margin-top:30px}.legal{max-width:820px;padding:52px 0 74px}.legal h1{font-size:3.3rem}.legal h2{font-size:1.8rem;margin-top:34px}.contact-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:var(--shadow-sm);margin-top:26px}.contact-card label{display:block;font-weight:800;margin:12px 0 6px}.contact-card input,.contact-card textarea{width:100%;padding:12px 14px;border:1.5px solid #afbeb5;border-radius:11px;font:inherit}.contact-card input:focus,.contact-card textarea:focus{outline:3px solid rgba(47,112,81,.15);border-color:var(--leaf)}.site-footer{background:#102e25;color:#d6e4dc;padding:54px 0 22px}.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:50px}.footer-grid img{width:210px}.site-footer h2{font-family:inherit;font-size:.88rem;text-transform:uppercase;letter-spacing:.12em;color:#b8d5c2}.site-footer a{display:block;color:#fff;text-decoration:none;padding:5px 0}.site-footer a:hover{text-decoration:underline}.site-footer p{color:#bdd0c5;max-width:480px}.footer-base{border-top:1px solid rgba(255,255,255,.14);margin-top:36px;padding-top:18px;font-size:.82rem}.footer-base p{max-width:none;margin:0}.skip{position:absolute;left:-999px}.skip:focus{left:20px;top:20px;background:#fff;padding:10px;z-index:100}.empty-state{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;text-align:center;color:var(--muted)}
@media(max-width:900px){.main-nav{display:none;position:absolute;top:78px;left:0;right:0;background:#fbfaf6;border-bottom:1px solid var(--line);padding:12px 20px 18px;flex-direction:column;align-items:stretch}.main-nav.is-open{display:flex}.main-nav a{padding:12px 10px}.menu-toggle{display:flex}.hero-grid,.page-hero-grid,.feature-split,.content-layout{grid-template-columns:1fr}.hero{padding-top:48px}.hero-art{max-width:680px}.hero-note{right:12px}.trust-inner{grid-template-columns:repeat(2,1fr)}.card-grid{grid-template-columns:repeat(2,1fr)}.side-card{position:static}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.section-head{align-items:start;flex-direction:column}.topic-band{grid-template-columns:1fr}.hub-list{grid-template-columns:1fr}}
@media(max-width:620px){.shell{width:min(100% - 28px,var(--max))}.header-inner{height:70px}.brand img{width:178px}.main-nav{top:70px}.hero{padding:38px 0 44px}.hero h1{font-size:2.8rem}.page-hero h1,.legal h1{font-size:2.55rem}.hero-grid,.page-hero-grid{gap:26px}.hero-note{position:static;margin-top:12px;max-width:none}.trust-inner,.card-grid,.footer-grid,.related-grid{grid-template-columns:1fr}.section{padding:52px 0}.calc-grid,.result-grid{grid-template-columns:1fr}.calculator-wrap{padding:20px;border-radius:20px}.page-hero{padding-bottom:34px}.hub-list{grid-template-columns:1fr}.article-hero{padding-top:30px}.topic-band{padding:22px}.footer-grid>div:first-child{grid-column:auto}.btn{width:100%}.hero-actions .btn{width:auto}.calc-actions .btn{width:auto}.prose table{display:block;overflow-x:auto;white-space:nowrap}.ads-preview .ad-slot{min-height:105px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* PASS 5 authority architecture */
.project-nav-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.project-route{display:flex;flex-direction:column;gap:10px;min-height:220px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:18px;text-decoration:none;color:inherit;box-shadow:var(--shadow-sm)}.project-route:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.project-route .route-icon{width:45px;height:45px;border-radius:13px;background:var(--mint);display:grid;place-items:center;color:var(--forest)}.project-route .route-icon .icon{width:24px}.project-route strong{font-family:var(--serif);font-size:1.25rem;color:var(--forest)}.project-route span{color:var(--muted);font-size:.93rem}.directory-section{padding:34px 0;border-top:1px solid var(--line)}.directory-section:first-child{border-top:0}.directory-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.tool-card.compact{padding:20px}.tool-card.compact h3{font-size:1.18rem}.guide-card.compact .card-body{padding:18px}.guide-card.compact h3{font-size:1.2rem}.guide-card.compact img{aspect-ratio:16/7;object-fit:cover}.decision-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.decision-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:19px}.decision-card h3{font-size:1.18rem;margin-bottom:7px}.decision-card p{margin:0;color:var(--muted)}.journey-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.journey-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}.journey-card h3{font-size:1.25rem}.journey-steps{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.journey-steps a,.journey-steps span{display:inline-flex;align-items:center;padding:7px 9px;border-radius:999px;background:var(--mint2);font-weight:750;font-size:.82rem;text-decoration:none}.journey-steps a:hover{background:#deeadf}.authority-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.authority-item{padding:20px;border-radius:18px;background:#fff;border:1px solid var(--line)}.authority-item strong{display:block;color:var(--forest);font-size:1.04rem}.authority-item span{display:block;color:var(--muted);margin-top:6px}.hub-jump{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}.hub-jump a{padding:8px 11px;border-radius:999px;background:var(--mint2);font-weight:800;font-size:.84rem;text-decoration:none}.hub-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:var(--shadow-sm)}.hub-panel h2{font-size:1.8rem}.hub-panel p{color:var(--muted)}.hub-columns{display:grid;grid-template-columns:1fr 1fr;gap:22px}.check-list{display:grid;gap:9px;padding:0;list-style:none}.check-list li{position:relative;padding-left:26px;color:#3f5148}.check-list li:before{content:'✓';position:absolute;left:0;top:0;color:var(--leaf);font-weight:900}.route-list{display:grid;gap:12px}.route-list .mini-link.rich{display:grid;gap:3px}.mini-link.rich span{display:block;color:var(--muted);font-size:.86rem;font-weight:550;margin-top:3px}.reference-hero{padding:44px 0 30px}.reference-math{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:clamp(1.2rem,3vw,1.8rem);padding:18px 20px;background:#14372d;color:#fff;border-radius:16px;margin:22px 0}.reference-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.reference-card{min-width:0;background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.reference-card h2{font-size:1.5rem}.reference-card p{color:var(--muted)}.reference-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden}.reference-table th,.reference-table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}.reference-table th{background:var(--mint2);color:var(--forest)}.reference-table tr:last-child td{border-bottom:0}.formula-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.formula-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.formula-card code{display:block;background:var(--mint2);padding:12px;border-radius:10px;margin:10px 0;color:var(--forest);white-space:normal}.intent-map{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.intent-row{background:#fff;border:1px solid var(--line);border-radius:14px;padding:15px}.intent-row strong{display:block;color:var(--forest)}.intent-row span{display:block;color:var(--muted);font-size:.9rem;margin-top:4px}.trust-callout{background:linear-gradient(135deg,#17392e,#285840);color:#fff;border-radius:24px;padding:28px}.trust-callout h2{color:#fff}.trust-callout p{color:#d7e5dc}.metric-band{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:20px}.metric-band div{padding:14px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15);border-radius:12px}.metric-band strong{display:block;font-size:1.4rem}.metric-band span{font-size:.8rem;color:#d7e5dc}.source-note-clean{font-size:.9rem;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin-top:22px}.compact-section{padding:42px 0}.site-footer .footer-grid{grid-template-columns:1.35fr .8fr .9fr .75fr}.site-footer .footer-grid>div:first-child{min-width:0}
@media(max-width:1050px){.project-nav-grid{grid-template-columns:repeat(2,1fr)}.journey-grid{grid-template-columns:repeat(2,1fr)}.directory-grid{grid-template-columns:repeat(2,1fr)}.authority-strip{grid-template-columns:1fr 1fr}.site-footer .footer-grid{grid-template-columns:1.2fr 1fr 1fr}.site-footer .footer-grid>div:first-child{grid-column:1/-1}}
@media(max-width:700px){.project-nav-grid,.directory-grid,.decision-grid,.journey-grid,.authority-strip,.hub-columns,.reference-grid,.formula-grid,.intent-map,.metric-band{grid-template-columns:1fr}.project-route{min-height:0}.reference-table{display:block;overflow-x:auto;white-space:nowrap}.site-footer .footer-grid{grid-template-columns:1fr}.site-footer .footer-grid>div:first-child{grid-column:auto}}