:root{--paper:#fafbf7;--ink:#232820;--muted:#5e655c;--line:#d8ddd2;--accent:#efc544;--sage:#edf0e7}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{background:var(--paper);color:var(--ink);margin:0;font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.6}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait}:is(a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible){outline-offset:4px;outline:3px solid #775600}a:hover{text-underline-offset:5px;text-decoration:underline}.wrap{max-width:1248px;margin:auto;padding-left:48px;padding-right:48px}.header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;min-height:110px;display:flex}.brand{letter-spacing:-.4px;align-items:center;gap:12px;font-size:17px;line-height:1.1;display:flex}.brand-mark{background:var(--accent);border-radius:4px;place-items:center;width:44px;height:44px;font-size:26px;font-weight:700;display:grid}.header nav{gap:32px;font-size:14px;display:flex}.hero{grid-template-columns:1.08fr 1fr;align-items:center;gap:45px;padding-top:66px;padding-bottom:68px;display:grid}.eyebrow{letter-spacing:.11em;margin:0 0 22px;font-size:11px;font-weight:700;line-height:1.5}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-.04em;margin-bottom:24px;font-size:clamp(42px,4.7vw,64px);font-weight:500;line-height:1.08}h1 span{background:linear-gradient(#0000 78%,#efc544 78% 94%,#0000 94%);position:relative}.lead{color:var(--muted);max-width:38ch;margin-bottom:30px;font-size:18px;line-height:1.6}.button{border:1px solid var(--ink);background:var(--ink);color:#fff;border-radius:6px;justify-content:space-between;align-items:center;gap:38px;min-height:48px;padding:14px 22px;font-size:15px;font-weight:600;display:inline-flex}.button:hover{background:#394332;text-decoration:none}.button.secondary{color:var(--ink);background:0 0}.micro{color:var(--muted);margin:13px 0 0;font-size:12px}.room{background:var(--sage);border-radius:3px;margin:0;padding:22px 20px 16px}.figure-label{justify-content:space-between;gap:10px;display:flex}.figure-label .eyebrow{margin:0;font-size:9px}.mono,.diagram-text{letter-spacing:.04em;font-family:Courier New,monospace;font-size:10px}.room svg{width:100%;height:auto;display:block}.room figcaption{justify-content:space-between;align-items:center;gap:8px;font-size:10px;display:flex}.dot{background:#ab7917;border-radius:50%;width:7px;height:7px;margin-right:5px;display:inline-block}.text-button{color:var(--ink);background:0 0;border:0;padding:10px 0;font-size:12px;text-decoration:underline}.figure-note{margin:12px 0 0;font-size:13px}.tools{padding-top:35px;padding-bottom:70px}.section-heading{justify-content:space-between;align-items:flex-end;margin-bottom:22px;display:flex}.section-heading .eyebrow{margin-bottom:8px}h2{letter-spacing:-.025em;margin-bottom:0;font-size:35px;font-weight:500;line-height:1.15}.tool-row{border-top:1px solid var(--line);grid-template-columns:54px 230px 1fr 30px;align-items:center;gap:20px;padding:23px 4px;display:grid}.tool-row:last-child{border-bottom:1px solid var(--line)}.tool-row:hover{background:var(--sage);text-decoration:none}.tool-row h3{letter-spacing:-.02em;margin:0;font-size:21px;font-weight:500}.tool-row p{color:var(--muted);margin:0;font-size:14px}.number{color:var(--muted);font:12px Courier New,monospace}.arrow{font-size:24px}.process{border-top:1px solid var(--line);grid-template-columns:1fr 1fr;gap:20px 80px;padding-top:50px;padding-bottom:70px;display:grid}.process .eyebrow{grid-column:1/-1;margin:0}.process p:not(.eyebrow){color:var(--muted)}.text-link{text-underline-offset:5px;margin-top:14px;font-size:14px;text-decoration:underline;display:block}.footer{border-top:1px solid var(--line);justify-content:space-between;gap:30px;padding-top:40px;padding-bottom:45px;display:flex}.footer-brand{letter-spacing:-.04em;font-size:23px;font-weight:700}.footer p,.footer small{color:var(--muted);font-size:12px}.footer small{display:block}.footer nav{grid-template-columns:1fr 1fr;gap:12px 28px;font-size:13px;display:grid}.skip{z-index:100;background:#fff;padding:12px;position:absolute;top:-100px;left:15px}.skip:focus{top:15px}.page-head{padding-top:35px;padding-bottom:26px}.crumbs{color:var(--muted);margin-bottom:28px;font-size:12px}.page-head h1{max-width:850px;margin-bottom:16px;font-size:48px}.page-head .lead{max-width:65ch;margin-bottom:0}.workspace{grid-template-columns:1fr .85fr;gap:50px;padding-bottom:50px;display:grid}.form-panel{border-top:1px solid var(--line);padding-top:24px}.form-heading{justify-content:space-between;align-items:center;margin-bottom:22px;display:flex}.form-heading h2{font-size:23px}.fields{grid-template-columns:1fr 1fr;gap:23px 18px;display:grid}.field label{margin-bottom:7px;font-size:14px;font-weight:600;display:block}.input-shell{position:relative}.field input,.field select{width:100%;color:var(--ink);background:#fff;border:1px solid #aab2a1;border-radius:5px;min-height:48px;padding:12px 70px 12px 12px}.field select{padding-right:12px}.unit{color:var(--muted);pointer-events:none;font-size:13px;position:absolute;top:13px;right:12px}.hint{color:var(--muted);margin-top:6px;font-size:12px;line-height:1.45;display:block}.field.wide{grid-column:1/-1}.submit{background:var(--accent);color:var(--ink);border-color:var(--accent);width:100%;margin-top:26px}.submit:hover{background:#e2b62b}.error{color:#802316;background:#fff0ed;border-left:3px solid #ab3424;margin-top:20px;padding:12px;font-size:14px}.result-sheet{background:var(--sage);border-top:4px solid var(--accent);align-self:start;padding:30px}.result-sheet h2{font-size:23px}.big-result{letter-spacing:-.04em;font-variant-numeric:tabular-nums;margin:26px 0 8px;font-size:58px;line-height:1.1}.big-result span{letter-spacing:0;margin-left:8px;font-size:22px}.result-details{border-top:1px solid #c7cdbf;margin-top:22px;padding-top:18px;font-size:14px}.result-details p{margin-bottom:10px}.result-details ul{padding-left:18px}.result-sheet .button{gap:10px;margin-top:15px}.reading{max-width:820px;margin:auto;padding:40px 32px 65px}.reading h2{margin:34px 0 16px;font-size:28px}.reading h3{margin-top:25px;font-size:20px}.reading p,.reading li{max-width:70ch}.reading li{margin-bottom:10px}.reading a{text-underline-offset:3px;text-decoration:underline}.reading .eyebrow{margin-bottom:18px}.formula{background:var(--sage);border-left:3px solid #98a789;padding:22px;font-family:Courier New,monospace;font-size:15px}.notice{color:var(--muted);border-left:2px solid #b0bba5;margin:24px 0;padding-left:15px;font-size:13px}.guide-list{padding-bottom:55px}.guide-row{border-top:1px solid var(--line);grid-template-columns:180px 1fr 30px;gap:20px;padding:23px 0;display:grid}.guide-row h2{font-size:23px}.guide-row p{color:var(--muted);margin:8px 0 0;font-size:14px}.tag{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-size:11px}@media (max-width:900px){.wrap{padding-left:28px;padding-right:28px}.hero{gap:25px}.hero h1{font-size:46px}.tool-row{grid-template-columns:35px 190px 1fr 24px;gap:12px}.workspace{gap:25px}.fields{grid-template-columns:1fr}}@media (max-width:720px){.wrap{padding-left:22px;padding-right:22px}.header{min-height:90px}.brand{font-size:15px}.brand-mark{width:38px;height:38px}.header nav{gap:14px;font-size:12px}.header nav a:last-child{display:none}.hero{grid-template-columns:1fr;padding-top:42px;padding-bottom:30px}.hero h1{font-size:48px}.lead{font-size:17px}.room{margin-top:12px}.tools{padding-top:25px;padding-bottom:45px}h2{font-size:29px}.tool-row{grid-template-columns:28px 1fr 26px;gap:4px 10px;padding:19px 0}.tool-row h3{font-size:21px}.tool-row p{grid-area:2/2;font-size:13px}.tool-row .arrow{grid-area:1/3/3}.process{grid-template-columns:1fr;gap:20px;padding-top:35px;padding-bottom:45px}.footer{display:block}.footer nav{margin-top:22px}.page-head h1{font-size:38px}.workspace{grid-template-columns:1fr}.fields{grid-template-columns:1fr 1fr}.field label{font-size:13px}.result-sheet{padding:24px}.guide-row{grid-template-columns:1fr 20px;gap:8px}.guide-row .tag{grid-column:1/-1}.guide-row h2{font-size:22px}.reading{padding:25px 22px 45px}.reading h2{font-size:26px}}@media (max-width:380px){.fields{grid-template-columns:1fr}.hero h1{font-size:42px}.header nav{gap:8px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition:none!important;animation:none!important}}@media print{.header,.footer,.skip,.form-panel,.page-head .crumbs,.result-sheet button,.no-print{display:none!important}body{background:#fff;font-size:11pt}.wrap,.reading{max-width:none;padding:0}.workspace{display:block}.result-sheet{break-inside:avoid;background:#fff;border:1px solid #ccc}.page-head h1{font-size:24pt}.big-result{font-size:32pt}.reading{padding-top:20px}a{color:#000;text-decoration:none}h2,h3{break-after:avoid}}.three-canvas{max-width:100%;height:300px;overflow:hidden}.spatial-controls{grid-template-columns:repeat(3,1fr);gap:12px;font-size:12px;display:grid}.spatial-controls input{accent-color:#776013;width:100%;min-height:36px}.surface-switch{gap:8px;margin-top:12px;display:flex}.surface-switch button{min-height:44px;color:var(--ink);background:0 0;border:1px solid #78856d;border-radius:4px;padding:8px 18px}.surface-switch button[aria-pressed=true]{background:var(--accent);border-color:var(--accent)}.spatial .micro{font-size:11px}.three-canvas canvas{max-width:100%}.consent{border:1px solid var(--line);background:var(--sage);margin:18px 0;padding:20px;font-size:14px}.consent-actions{flex-wrap:wrap;gap:12px;display:flex}.input-snapshot{margin-top:15px}.input-snapshot summary{cursor:pointer}.result-details h3{margin:24px 0 12px;font-size:17px}@media print{.input-snapshot,.input-snapshot>ul{display:block}}
