@font-face{font-family:Editorial;src:local("Georgia")} 
:root{--paper:#f6f4ee;--surface:#fffefa;--ink:#15263a;--muted:#495b6e;--navy:#122a45;--blue:#204d80;--line:#cad4d8;--mint:#d9f2e9;--aqua:#85dfcc;--radius:14px}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font:1rem/1.64 "Segoe UI",system-ui,sans-serif}a{color:#194b82;text-underline-offset:.22em}a:hover{text-decoration-thickness:2px}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #166a55;outline-offset:4px}img{max-width:100%;display:block;height:auto}h1,h2,h3,p{margin-top:0}h1,h2{font-family:Editorial,Georgia,serif;line-height:1.08;letter-spacing:-.035em}h1{font-size:clamp(2.9rem,6.4vw,5.8rem);font-weight:500;margin-bottom:1.2rem}h2{font-size:clamp(1.95rem,4vw,3.1rem);font-weight:500;margin-bottom:.75rem}h3{font-size:1.12rem;line-height:1.32;margin-bottom:.55rem}p,li{max-width:76ch}.wrap{max-width:1180px;width:calc(100% - 52px);margin:auto}.narrow{max-width:850px}.skip{position:absolute;left:.7rem;top:.6rem;transform:translateY(-180%);background:white;padding:.5rem;z-index:5}.skip:focus{transform:none}.top{border-bottom:1px solid #d8dfdf;background:var(--surface)}.header{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:1.4rem}.brand{display:flex;align-items:center;gap:.65rem;color:var(--ink);font-weight:750;letter-spacing:-.045em;text-decoration:none;font-size:1.4rem}.mark{display:grid;place-items:center;width:31px;height:31px;border-radius:50%;background:var(--navy);color:var(--aqua);font:750 1rem/1 system-ui}.navigation{display:flex;flex-wrap:wrap;gap:1.35rem}.navigation a{font-size:.93rem;color:var(--muted);text-decoration:none;font-weight:600;padding:.25rem 0;border-bottom:2px solid transparent}.navigation a[aria-current],.navigation a:hover{color:var(--ink);border-color:#238775}.hero{background:var(--navy);color:white;padding:clamp(2.4rem,6vw,5.7rem) 0}.hero-grid{display:grid;grid-template-columns:1.06fr 1fr;gap:clamp(1.6rem,5vw,4.5rem);align-items:center}.hero p{color:#dee9f4;font-size:1.13rem;max-width:43ch;margin-bottom:1.6rem}.hero .kicker{color:var(--aqua);margin:0 0 .8rem}.hero figure{margin:0;min-width:0}.hero figure img{width:100%;border-radius:12px}.hero figcaption{color:#d8e5f4;margin-top:.52rem}.hero-lite{padding:3.9rem 0 2.8rem;background:#e6efed;border-bottom:1px solid var(--line)}.hero-lite h1{font-size:clamp(2.7rem,5.6vw,5rem)}.hero-lite p{max-width:62ch;font-size:1.1rem;color:var(--muted);margin-bottom:0}.kicker{font:700 .76rem/1.4 "Segoe UI",system-ui;letter-spacing:.11em;text-transform:uppercase;color:#235c54}.button,button{display:inline-flex;align-items:center;justify-content:center;background:#aadfce;color:#102e2b;border:1px solid transparent;border-radius:6px;padding:.7rem .95rem;font-weight:750;text-decoration:none;cursor:pointer;font:inherit;font-weight:700;min-height:44px}.button:hover,button:hover{background:#c2eee1}.button.secondary{background:white;border-color:#aabcc3;color:#1b465e}.section{padding:3.5rem 0}.section + .section{border-top:1px solid var(--line)}.section-head{margin-bottom:1.45rem}.section-head p{margin-bottom:0;color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.card{border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:1.25rem;min-width:0}.card p:last-child{margin-bottom:0}.card strong.model{display:block;color:var(--muted);font-size:.87rem;margin-bottom:.8rem}.note{border-left:4px solid #4a9885;background:#e4f0eb;padding:1rem 1.15rem;margin:1rem 0;border-radius:0 8px 8px 0}.note p:last-child{margin-bottom:0}.disclosure,.quiet,figcaption{color:var(--muted);font-size:.9rem}.direct{display:flex;gap:.65rem;flex-wrap:wrap}.read-links a{margin-right:1.1rem}.table-scroll{overflow:auto;border:1px solid var(--line);border-radius:12px;background:var(--surface)}table{border-collapse:collapse;width:100%;min-width:675px;font-size:.92rem;text-align:left}th,td{padding:.8rem .9rem;border-bottom:1px solid #dbe2e4;vertical-align:top}thead th{background:#173550;color:white}tbody th{background:#eef3f3;font-weight:700;width:19%}tr:last-child>*{border-bottom:0}.checklist{padding-left:1.42rem}.checklist li{padding:.28rem 0}.source-list{padding-left:1.25rem}.source-list li{padding:.21rem 0}.source-list a{overflow-wrap:anywhere}.form-grid,.fields{display:grid;grid-template-columns:repeat(3, minmax(0,1fr));gap:.85rem}.fields label{display:flex;flex-direction:column;gap:.2rem;font-size:.87rem;font-weight:650}input,select{width:100%;min-width:0;font:inherit;padding:.55rem;border:1px solid #899da8;border-radius:5px;background:white;color:var(--ink)}.fit-tools,.calculator{border:1px solid var(--line);padding:1.3rem;background:var(--surface);border-radius:var(--radius)}.fit-tools .fields{margin:.9rem 0}.result{display:block;color:#153c36;font-weight:650;margin-top:.75rem}.cost-grid{margin:1.1rem 0;display:grid;gap:.95rem}.cost-grid fieldset{border:1px solid var(--line);border-radius:8px;padding:1rem;min-width:0}.cost-grid legend{padding:0 .35rem;font-weight:750}.cost-grid .fields{grid-template-columns:repeat(3,minmax(0,1fr))}.calculator .form-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.cost-head{display:flex;gap:1rem;align-items:center;flex-wrap:wrap}.cost-head output{font-family:Editorial,Georgia,serif;font-size:2rem;color:#133b35}.diagram{max-width:850px;margin:1.35rem 0}.diagram img{border:1px solid var(--line);border-radius:11px}.footer{border-top:1px solid var(--line);background:#e9eeeb;padding:2rem 0;color:var(--muted);font-size:.91rem}.footer-row{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}.footer p{margin:0}.footer nav{display:flex;gap:1rem}.no-script{margin-top:1rem}@media(max-width:760px){.wrap{width:calc(100% - 34px)}.header{align-items:flex-start;flex-direction:column;gap:.5rem;padding:.85rem 0}.navigation{gap:.95rem}.hero-grid,.cards{grid-template-columns:1fr}.hero h1{max-width:12ch}.hero figure{max-width:530px}.hero-lite{padding:2.6rem 0 2rem}.section{padding:2.45rem 0}.form-grid,.calculator .form-grid{grid-template-columns:1fr}.fit-tools .fields{grid-template-columns:1fr 1fr}.cost-grid .fields{grid-template-columns:1fr 1fr}}@media(max-width:390px){.navigation{gap:.65rem}.navigation a{font-size:.85rem}.fit-tools .fields{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}