:root{--bg:#121313;--panel:#1b1d1d;--gold:#cfac67;--ink:#f3f1eb;--muted:#b1b2ad;--line:#383b39;color-scheme:dark;font-family:'DM Sans',Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 90% 10%,#26271e44,transparent 48%),var(--bg);color:var(--ink);font-size:15px;line-height:1.65}.shell{width:min(1160px,calc(100% - 64px));margin:auto}a{color:inherit}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button,summary{cursor:pointer}a{text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--gold);outline-offset:5px}input{min-width:0}.skip{position:fixed;left:16px;top:-100px;z-index:20;background:var(--gold);color:#171816;padding:10px 16px}.skip:focus{top:10px}.testbar{padding:9px 24px;background:#24271f;color:#dcc38d;font-size:10px;letter-spacing:.12em;text-align:center}.testbar>span:last-child{margin-left:25px;letter-spacing:0;color:#c0c1b8}.dot{display:inline-block;width:6px;height:6px;background:var(--gold);border-radius:50%;margin-right:8px}header{height:100px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.wordmark{font-weight:800;font-size:18px;letter-spacing:.08em}.wordmark span{color:var(--gold)}.back{font-size:13px;color:var(--muted)}.intro{padding:62px 0 39px;max-width:800px}.eyebrow{font-weight:700;font-size:10px;letter-spacing:.18em;color:var(--gold);margin:0 0 18px}h1,h2,h3,p{margin-top:0}h1,h2{font-family:'Manrope',Arial,sans-serif;font-weight:500;letter-spacing:-.055em;line-height:1.12}h1{font-size:clamp(42px,5.1vw,68px);margin-bottom:22px}em{font-style:normal;color:var(--gold)}.lead{font-size:17px;line-height:1.75;max-width:660px;color:var(--muted)}.intro-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}.intro-tags span{border:1px solid var(--line);border-radius:20px;padding:5px 12px;font-size:11px;color:#c8c8c0}.calculator-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:start;scroll-margin-top:20px}.panel{border:1px solid var(--line);background:linear-gradient(140deg,#22252388,#191b1af2);border-radius:20px;padding:32px}.section-heading{display:flex;gap:13px;align-items:center;margin-bottom:25px}.section-heading>span{font-size:11px;color:var(--gold);border:1px solid #65583c;border-radius:50%;width:30px;height:30px;display:grid;place-items:center;flex-shrink:0}.section-heading h2{font-size:22px;letter-spacing:-.035em;margin:0}fieldset{padding:0;border:0;margin:0}legend{font-size:13px;margin-bottom:10px}label{font-size:13px}.segmented{display:flex;gap:10px}.segmented label{flex:1;position:relative}.segmented span{display:block;text-align:center;border:1px solid var(--line);padding:11px;border-radius:8px;font-weight:600}.segmented input{position:absolute;width:1px;height:1px;opacity:0}.segmented input:checked+span{background:#cfac6717;border-color:var(--gold);color:var(--gold)}.segmented input:focus-visible+span{outline:2px solid var(--gold);outline-offset:3px}.field-note{font-size:11px;color:var(--muted);margin:9px 0 20px;line-height:1.6}.measurements{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.input-wrap{display:flex;align-items:center;background:#121514;border:1px solid #484b45;border-radius:8px;margin-top:8px;padding-right:12px}.input-wrap input{background:none;border:0;color:var(--ink);width:100%;height:50px;padding:12px;font-size:18px;font-weight:500}.input-wrap>span{font-size:11px;color:var(--muted)}input::placeholder{font-size:13px;color:#888d85}small{font-size:10px;color:var(--muted)}.activity-section{margin-top:32px;padding-top:30px;border-top:1px solid var(--line)}.supporting{color:var(--muted);font-size:13px;margin-bottom:18px}.activity{display:flex;gap:12px;align-items:start;border:1px solid var(--line);border-radius:10px;padding:15px;margin-bottom:10px;cursor:pointer;transition:border-color .15s,background .15s}.activity:hover{border-color:#70664f}.activity:has(input:checked){border-color:var(--gold);background:#cfac670d}.activity input{accent-color:var(--gold);margin:5px 0 0;width:16px;height:16px;flex-shrink:0}.activity-body{flex:1}.activity-title{display:flex;align-items:center;justify-content:space-between;gap:6px;font-size:14px;font-weight:600;line-height:1.4}.activity-title small{white-space:nowrap;color:var(--gold);font-size:11px;font-weight:400}.activity-copy{display:block;color:var(--muted);font-size:12px;line-height:1.6;margin-top:5px}.advanced{margin-top:18px;font-size:12px}.advanced summary{color:#d1c6af;padding:9px 0}.manual-toggle{display:block;margin:12px 0}.manual-toggle input{accent-color:var(--gold);margin-right:8px}#manual-pal{display:block;background:#121514;border:1px solid #484b45;border-radius:6px;padding:9px 12px;width:120px;margin-top:8px;color:var(--ink)}#manual-pal:disabled{opacity:.4}.scope{font-size:11px;color:var(--muted);margin:22px 0;line-height:1.7}.primary,.secondary{width:100%;display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-radius:9px;font-size:14px;font-weight:700;border:1px solid var(--gold);background:var(--gold);color:#1d201a}.primary:hover{background:#ddbd7c}.reset{display:block;margin:14px auto 0;background:none;border:0;color:var(--muted);font-size:12px;padding:7px}.errors{color:#ffcdbe;background:#59312544;border:1px solid #a86b51;padding:13px;margin-bottom:18px;border-radius:8px;font-size:12px}.errors p:last-child{margin-bottom:0}[aria-invalid="true"]{outline:1px solid #d69a80}.result-column{position:sticky;top:24px}.empty-result{min-height:580px;padding:35px}.orbit{width:170px;height:170px;border:1px solid #61563b;border-radius:50%;margin:45px auto;display:grid;place-items:center;position:relative;background:radial-gradient(circle,#cfac670c,transparent 70%)}.orbit:after{content:'';position:absolute;inset:16px;border:1px solid #36392f;border-radius:50%}.orbit>span{font-family:Manrope,sans-serif;font-size:28px;letter-spacing:.15em;color:var(--gold);padding-left:.15em}.empty-result h2{font-size:32px;margin-bottom:16px}.empty-result p{font-size:13px;color:var(--muted)}.empty-list{border-top:1px solid var(--line);padding-top:22px;margin-top:26px;display:grid;gap:12px;font-size:12px;color:#d7cfbf}.result{border-color:#706044}.result h2{font-size:28px;margin-bottom:18px}.result-number{margin:0 0 4px}.result-number>span:first-child{display:block;font-size:clamp(50px,5vw,70px);font-family:Manrope,sans-serif;color:var(--gold);letter-spacing:-.06em;font-weight:500;line-height:1.15}.unit{font-size:13px;color:var(--muted)}.result-caption{font-size:12px;color:#c0c2b9;margin:16px 0 24px}.result-facts{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;display:grid;gap:13px}.result-facts>div{display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:11px}.result-facts strong{white-space:nowrap;font-weight:500;color:#efeadc}.sensitivity{margin-top:24px}.sensitivity h3{font-size:15px;line-height:1.5;margin-bottom:9px;font-weight:500}.sensitivity p{font-size:12px;color:var(--muted);margin-bottom:8px}.sensitivity>strong{display:block;font-size:22px;font-family:Manrope,sans-serif;letter-spacing:-.03em;color:#e1cfaa;margin-bottom:10px}.fine,.sensitivity .fine{font-size:11px;line-height:1.7;color:var(--muted)}.result-advice{font-size:12px;border-left:2px solid #706044;padding-left:14px;margin:22px 0}.secondary{background:none;color:var(--gold);margin-bottom:13px;font-size:13px;padding:14px}.population-note{font-size:12px;padding:12px;background:#cfac6712;border-radius:7px;color:#e1cb9c;margin-top:16px}.privacy-note{font-size:10px;line-height:1.7;color:#94988f;padding:14px 12px}.followup{display:grid;grid-template-columns:1fr 1fr;gap:60px;border-top:1px solid var(--line);padding-top:55px;margin-top:65px}.followup h2{font-size:34px;line-height:1.25}.followup ol{margin:0;padding:0;list-style:none;counter-reset:steps}.followup li{counter-increment:steps;position:relative;padding:0 0 22px 35px;font-size:12px;color:var(--muted)}.followup li:before{content:'0' counter(steps);position:absolute;left:0;top:2px;color:var(--gold);font-size:11px}.followup strong{display:block;font-size:14px;color:var(--ink);font-weight:500;margin-bottom:7px}.method{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:28px 0 45px}.method summary{padding:22px 0;font-size:14px}.method-body{max-width:800px;padding-bottom:25px;font-size:12px;color:var(--muted)}.method-body h3{font-size:15px;color:var(--ink);margin:18px 0 9px}.formula{color:#d7c293}.sources{padding-left:20px}.sources li{margin:10px 0}.sources a{text-decoration:underline;text-underline-offset:3px}footer{display:flex;justify-content:space-between;gap:20px;font-size:10px;color:#a3a69d;padding-bottom:32px;letter-spacing:.06em}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}[hidden]{display:none!important}@media(max-width:850px){.calculator-grid{grid-template-columns:1fr 1fr;gap:16px}.panel{padding:23px}.shell{width:calc(100% - 40px)}.measurements{gap:8px}.input-wrap input{padding:9px;font-size:16px}.input-wrap{padding-right:8px}.activity-title{font-size:13px}}@media(max-width:680px){.shell{width:calc(100% - 32px)}header{height:78px}.wordmark{font-size:15px}.back{font-size:11px}.testbar{font-size:8px;padding:9px 8px}.testbar>span:last-child{display:none}.intro{padding:38px 0 30px}h1{font-size:42px}.lead{font-size:14px}.intro-tags{gap:7px}.intro-tags span{font-size:10px;padding:4px 9px}.calculator-grid,.followup{grid-template-columns:1fr}.panel{padding:22px;border-radius:15px}.result-column{position:static}.empty-result{min-height:0}.orbit{margin:24px auto;width:120px;height:120px}.empty-result h2{font-size:27px}.result-number>span:first-child{font-size:64px}.followup{gap:16px;padding-top:36px;margin-top:40px}.followup h2{font-size:29px}.method{margin-top:15px}.method summary{font-size:13px}.section-heading h2{font-size:20px}.measurements label{font-size:12px}.activity{padding:13px}.activity-title small{font-size:10px}.measurements{grid-template-columns:repeat(3,minmax(0,1fr))}footer{display:block}footer span{display:block;margin-top:6px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
