:root{--ink:#183b35;--muted:#61716e;--green:#10372f;--lime:#c5f26b;--paper:#f5f7f5;--line:#dfe7e1;--blue:#e8f3f7;--amber:#835515;--amber-bg:#fff5df;--red:#8d3930;--red-bg:#fbeeea;--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 'Segoe UI',Arial,sans-serif}a{color:inherit;text-underline-offset:4px}button,input,select,textarea{font:inherit}button,a,input,select,summary,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.65}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #369ea7;outline-offset:4px}[hidden]{display:none!important}.skip{position:absolute;left:20px;top:-80px;z-index:10;background:white;padding:12px}.skip:focus{top:10px}.site-header{height:90px;max-width:1376px;margin:auto;padding:0 48px;display:flex;align-items:center;gap:36px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;font-size:25px;font-weight:750;letter-spacing:-.7px;text-decoration:none;white-space:nowrap}.brand-light{font-weight:400}.brand-mark{display:grid;place-items:center;background:var(--green);color:var(--lime);width:36px;height:36px;margin-right:10px;border-radius:10px;font-size:25px}.header-caption{font-size:14px;color:var(--muted)}.header-link{font-size:14px;margin-left:auto;text-decoration:none}.header-link span{padding-left:8px}main{max-width:1280px;margin:auto;padding:0 40px}.intro{padding:47px 0 31px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:1.7px;margin:0 0 12px}.intro h1{font-size:clamp(30px,3.3vw,46px);line-height:1.15;letter-spacing:-1.6px;font-weight:620;margin:0 0 17px}.intro>p:not(.eyebrow){font-size:17px;line-height:1.6;color:var(--muted);margin:0}.intro-meta{display:flex;gap:24px;margin-top:21px;color:#42665c;font-size:13px;flex-wrap:wrap}.intro-meta span:before{content:'✓';margin-right:7px;color:#317864}.workspace{display:grid;grid-template-columns:minmax(0,1.57fr) minmax(300px,1fr);gap:26px;align-items:stretch}.check-panel{background:white;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.steps{display:flex;padding:22px 28px;border-bottom:1px solid var(--line);gap:16px;justify-content:space-between}.steps span{display:flex;align-items:center;gap:7px;font-size:13px;color:#6e7d77;white-space:nowrap}.steps b{font-size:12px;width:24px;height:24px;display:grid;place-items:center;background:#eef2ed;border-radius:50%;font-weight:600}.steps .active{color:var(--green);font-weight:700}.steps .active b{background:var(--green);color:#fff}.steps .done b{background:#e3efda;color:#335b30}#project-form{padding:28px 30px 23px}h2{font-size:25px;line-height:1.25;letter-spacing:-.6px;font-weight:620;margin:0 0 12px}h3{font-size:18px;line-height:1.35;margin:0 0 8px}.muted{color:var(--muted);margin:0 0 24px;font-size:15px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:22px 18px}label{display:block;font-weight:600;font-size:14px}input:not([type=checkbox]),select,textarea{display:block;width:100%;border:1px solid #cbd7d0;border-radius:8px;background:white;padding:11px 12px;color:var(--ink);margin-top:7px;min-height:47px}input::placeholder,textarea::placeholder{color:#82918a}select{padding-right:30px}.field-help{display:block;font-size:12px;line-height:1.5;font-weight:400;color:var(--muted);margin-top:6px}.span-2{grid-column:1/-1}.form-note{background:#f3f6f2;border-radius:8px;padding:12px 14px;font-size:13px;margin:23px 0 0;color:#637269}.form-actions{display:flex;align-items:center;gap:14px;border-top:1px solid var(--line);margin-top:25px;padding-top:21px}.form-actions>span{color:var(--muted);font-size:13px}#next{margin-left:auto}.button{border:0;border-radius:8px;display:inline-flex;gap:18px;align-items:center;justify-content:center;padding:12px 19px;font-size:14px;font-weight:650;text-decoration:none;min-height:46px}.primary{background:var(--green);color:white}.primary:hover{background:#215348}.secondary{background:#edf2ec;color:var(--green)}.text-button{background:transparent;border:0;padding:8px 0;text-decoration:underline;text-underline-offset:4px;font-size:14px;color:var(--muted)}.companion{background:var(--green);color:white;border-radius:var(--radius);padding:31px;display:flex;flex-direction:column}.companion-top{display:flex;justify-content:space-between;gap:10px;align-items:center}.companion-top .eyebrow{font-size:11px;letter-spacing:1.1px;margin:0;color:#bed6ca}.mini-label{font-size:9px;letter-spacing:.6px;border:1px solid #527465;border-radius:4px;padding:3px 5px;color:#d2e0d8}.companion h2{margin:30px 0 26px;font-size:27px;line-height:1.3;color:#f7fff5}.compass-list>div{display:flex;gap:15px;align-items:flex-start;padding:17px 0;border-top:1px solid #3b5b4e}.number{font-size:12px;color:var(--lime);padding-top:4px}.compass-list p{margin:0}.compass-list strong{font-size:15px;font-weight:550}.compass-list p>span{display:block;color:#b8d0c4;font-size:13px;margin-top:3px}.companion-bottom{border-top:1px solid #3b5b4e;margin-top:auto;padding-top:22px;display:flex;gap:12px;align-items:flex-start}.companion-bottom p{margin:0;font-size:13px;color:#d1dfd7}.check-symbol{background:var(--lime);color:var(--green);display:grid;place-items:center;border-radius:50%;width:23px;height:23px;flex:0 0 23px}.error{color:var(--red);font-size:14px;margin:14px 0 0}.error:empty{display:none}.method{display:grid;grid-template-columns:1fr 1.5fr;gap:75px;padding:58px 0}.method h2{font-size:23px;line-height:1.4}.method .eyebrow{color:#5a7668}.method-details details{border-bottom:1px solid var(--line);padding:17px 0}.method-details details:first-child{padding-top:0}.method-details summary{cursor:pointer;font-size:15px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:20px}.method-details summary:after{content:'+';font-weight:400;font-size:20px;line-height:1}.method-details details[open] summary:after{content:'−'}.method-details p{font-size:14px;color:var(--muted)}footer{max-width:1280px;margin:auto;padding:28px 40px 38px;border-top:1px solid var(--line);display:flex;align-items:center;gap:28px;flex-wrap:wrap}footer .brand{font-size:20px}footer>span,footer a:not(.brand){font-size:13px;color:var(--muted)}footer nav{margin-left:auto;display:flex;gap:20px}.footer-note{flex-basis:100%;font-size:12px!important}.status-card{background:var(--green);color:white;border-radius:var(--radius);padding:34px 38px;display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center}.status-card h2{color:white;font-size:31px;max-width:750px}.status-card p{max-width:760px;color:#d4e2db;margin:0}.status-card.amber{background:#fff1d4;color:#644916}.status-card.amber h2,.status-card.amber p{color:#644916}.status-card.review{background:#edf1f4;color:#274354}.status-card.review h2,.status-card.review p{color:#274354}.status-icon{font-size:45px;width:80px;height:80px;border:1px solid currentColor;border-radius:50%;display:grid;place-items:center}.result-toolbar{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;padding:24px 0}.result-label{font-size:14px;color:var(--muted);margin:0}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.result-card{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:26px}.result-card.full{grid-column:1/-1}.result-card h3{margin-bottom:17px}.metric-top{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.metric-value{font-size:40px;letter-spacing:-1px;line-height:1.3;font-weight:650}.unit{font-size:12px;color:var(--muted)}.badge{font-size:12px;padding:5px 9px;border-radius:5px;display:inline-block;background:#e6f2df;color:#356044}.badge.amber{background:var(--amber-bg);color:var(--amber)}.badge.review{background:var(--red-bg);color:var(--red)}.metric-band{font-size:14px;color:var(--muted);margin:14px 0 8px}.meter{height:13px;border-radius:4px;background:#ebefea;position:relative;margin:15px 0 11px}.meter-fill{height:100%;background:#418c6f;border-radius:4px}.meter-limit{position:absolute;width:2px;top:-4px;bottom:-4px;background:#172f29}.meter-caption{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}.metric-warning{font-size:13px;line-height:1.6;color:var(--muted);margin:17px 0 0}.checks{display:grid;gap:0}.check-row{display:grid;grid-template-columns:24px 1fr;gap:10px;padding:16px 0;border-bottom:1px solid var(--line)}.check-row:last-child{border-bottom:0;padding-bottom:0}.check-row:first-child{padding-top:0}.check-row>span{color:#58866c}.check-row.warn>span{color:#a76b13}.check-row p{margin:4px 0 0;color:var(--muted);font-size:14px}.check-row strong{font-size:15px}.wide-note{padding:18px 22px;border:1px solid var(--line);background:#eef4f5;border-radius:12px;margin:20px 0;font-size:14px}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;padding:13px 10px;border-bottom:1px solid var(--line)}th{font-size:12px;color:var(--muted);font-weight:600}td:last-child,th:last-child{text-align:right}.small{font-size:13px;color:var(--muted)}.result-card details{font-size:14px}.result-card details summary{cursor:pointer;font-weight:600}.assumptions{font-size:14px;color:var(--muted);padding-left:20px}.assumptions li{margin:7px 0}.breakdown{display:flex;align-items:center;gap:28px;margin-top:25px}.donut{width:124px;height:124px;border-radius:50%;flex:0 0 124px;display:grid;place-items:center}.donut:after{content:'';width:88px;height:88px;background:white;border-radius:50%}.legend{width:100%;font-size:13px}.legend>div{display:flex;align-items:center;gap:8px;margin:9px 0}.legend i{width:9px;height:9px;border-radius:2px;flex:0 0 9px}.legend strong{margin-left:auto;font-weight:500;white-space:nowrap}.contact{margin-top:38px;padding:36px;background:#e5eef2;border-radius:var(--radius);display:grid;grid-template-columns:1fr 1.3fr;gap:55px}.contact h2{font-size:29px;line-height:1.3}.contact-copy p{color:#4e6b75;font-size:15px}.contact .eyebrow{color:#426574}.contact input,.contact textarea{border-color:#bcced4}.contact textarea{min-height:90px;resize:vertical}.contact .fields{gap:17px}.checkbox-label{font-size:13px;font-weight:400;display:flex;align-items:flex-start;gap:10px;margin-top:15px}.checkbox-label input{width:17px;height:17px;flex:0 0 17px;margin:2px 0 0;accent-color:var(--green)}.contact-actions{margin-top:20px}.contact-actions .button{width:100%}.contact-status{font-size:14px;margin-top:14px}.privacy-hint{font-size:12px;color:#5c747a;margin:12px 0 0}.protocol{white-space:pre-wrap;background:#f4f6f3;padding:20px;border-radius:8px;font-size:13px}.hp{position:absolute;left:-9999px}.context-pill{font-size:12px;background:#edf1e9;padding:5px 9px;border-radius:5px;display:inline-block;margin:0 7px 5px 0}.subheading{grid-column:1/-1;border-top:1px solid var(--line);margin:8px 0 -4px;padding-top:20px;font-size:15px}.no-result{padding:25px;background:#f1f4f1;border-radius:10px;font-size:14px;color:var(--muted)}
@media(min-width:1350px){.intro{padding-top:52px}}@media(max-width:1000px){.site-header{padding:0 28px}main{padding:0 28px}.workspace{grid-template-columns:1.4fr 1fr;gap:18px}.companion{padding:26px}.companion h2{font-size:24px}.steps{padding:19px 22px;gap:9px}.steps span{font-size:12px}#project-form{padding:25px 23px}.fields{gap:19px 14px}.method{gap:35px}.contact{gap:30px;padding:28px}.header-caption{display:none}}@media(max-width:780px){.workspace{grid-template-columns:1fr}.companion{display:none}.intro{padding-top:32px}.intro h1{letter-spacing:-1px}.method{grid-template-columns:1fr;gap:20px;padding:40px 0}.method h2 br{display:none}.contact{grid-template-columns:1fr;gap:18px}.result-grid{grid-template-columns:1fr}.result-card.full{grid-column:auto}.status-card{padding:27px}.status-icon{display:none}.status-card h2{font-size:27px}.result-card{padding:23px}.header-link{font-size:13px}.intro-meta{gap:8px 17px;font-size:12px}footer{padding:25px 28px;gap:17px}.contact h2{font-size:26px}}@media(max-width:480px){.site-header{height:72px;padding:0 18px}.brand{font-size:22px}.brand-mark{width:31px;height:31px;font-size:22px}.header-link{max-width:113px;font-size:12px;line-height:1.4}.header-link span{display:none}main{padding:0 16px}.intro{padding:29px 0 24px}.intro .eyebrow{font-size:10px;letter-spacing:1px}.intro>p:not(.eyebrow){font-size:15px}.desktop{display:none}.intro-meta{font-size:11px}.steps{padding:16px 15px;gap:6px}.steps span{font-size:11px;gap:4px}.steps b{width:21px;height:21px;font-size:11px}#project-form{padding:23px 19px}.fields{grid-template-columns:1fr;gap:18px}.span-2,.subheading{grid-column:auto}h2{font-size:23px}.muted{font-size:14px}.button{font-size:13px;padding:11px 15px;gap:10px}.form-actions{gap:8px}.form-actions>span{font-size:11px}.contact{padding:25px 20px}.status-card{padding:24px}.status-card h2{font-size:25px}.metric-value{font-size:35px}.result-toolbar .button{padding:10px 13px}.breakdown{gap:18px}.donut{width:95px;height:95px;flex-basis:95px}.donut:after{width:67px;height:67px}footer nav{margin-left:0}footer .brand{font-size:20px}footer>span{font-size:12px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{body{background:white;font-size:12px}.site-header,.intro,.workspace,.method,.contact,footer,.result-toolbar button,.result-toolbar a,.print-hide{display:none!important}main{padding:0;max-width:none}#results{display:block!important}.status-card{color:#173b31;background:#f2f5f0;padding:20px;border:1px solid #999}.status-card h2,.status-card p{color:#173b31}.result-grid{gap:12px;grid-template-columns:1fr 1fr}.result-card{padding:17px;break-inside:avoid}.result-card.full{grid-column:1/-1}.metric-value{font-size:30px}.wide-note{break-inside:avoid}.status-icon{display:none}details> :not(summary){display:block!important}.protocol{font-size:10px}a{text-decoration:none}}

/* Original-style open input and output layout, September 2026. */
.intro{padding:34px 0 26px}.intro h1{font-size:clamp(29px,3.1vw,43px)}.workspace{align-items:start}.companion{position:sticky;top:24px;min-height:510px}.input-section{border:0;padding:0;margin:0 0 26px;min-width:0}.input-section+ .input-section{border-top:1px solid var(--line);padding-top:24px}.input-section legend{font-size:18px;font-weight:650;padding:0 0 15px;float:left;width:100%}.input-section legend span{font-size:13px;color:var(--muted);font-weight:400}.input-section .fields{clear:both}.area-input{display:flex;gap:8px}.area-input select{flex:0 0 85px;width:85px}.area-input input{min-width:0}.form-heading .muted{margin-bottom:27px}.optional-check{margin-top:22px;border-top:1px solid var(--line);padding-top:18px}.optional-check summary{cursor:pointer;font-size:14px;font-weight:600}.optional-check summary span{font-weight:400;color:var(--muted);margin-left:7px}.optional-check fieldset{border:0;padding:20px 0 0;margin:0;min-width:0}.optional-check fieldset:disabled{opacity:.55}.optional-check fieldset .fields{gap:20px}.form-actions{flex-wrap:wrap}.form-actions>span{margin-left:auto}.form-actions .button{flex-shrink:0}.companion-bottom{margin-top:30px}.result-toolbar{align-items:center}#results{margin-top:34px;scroll-margin-top:24px}.result-card h4{font-size:14px;font-weight:600;margin:0;color:var(--muted)}.breakdown-columns{display:grid;grid-template-columns:1fr 1fr;gap:36px}.breakdown{gap:20px;margin-top:17px}.donut{position:relative}.donut span{position:absolute;z-index:1;font-size:22px;font-weight:650}.legend>div>span:not(.legend-percent){flex:1}.legend-percent{width:36px;text-align:right;color:var(--muted);font-size:12px}.legend strong{margin-left:3px}.legend>div{gap:7px}.badge{font-size:13px}.badge.neutral{background:#eaf0f3;color:#426272}.metric-card .metric-top{flex-wrap:wrap}.meter{height:25px;margin-top:17px}.meter-range{position:absolute;top:0;height:100%;background:#ffffff77;border-left:1px solid #40594c;border-right:1px solid #40594c}.meter-point{position:absolute;width:3px;top:-3px;bottom:-3px;background:white;box-shadow:0 0 0 1px #2d443a;z-index:2}.meter-limit{background:#132d23;width:2px;z-index:1}.meter-key{display:flex;gap:17px;flex-wrap:wrap;margin-top:18px;font-size:12px;color:var(--muted)}.meter-key span{display:flex;gap:6px;align-items:center}.meter-key i{display:inline-block}.key-point{width:3px;height:12px;border:1px solid #234638;background:white}.key-range{width:15px;height:10px;background:#e3ebde;border-left:1px solid #40594c;border-right:1px solid #40594c}.key-limit{width:2px;height:12px;background:#132d23}.table-wrap small{display:block;color:var(--muted);margin-top:6px;font-size:12px}#result-targets td:last-child,#result-targets th:last-child{text-align:left}.wide-note.full{grid-column:1/-1;margin:0}#results .status-card h2{font-size:28px}.optional-check>summary::marker{color:var(--green)}
@media(max-width:1050px){.breakdown-columns{gap:24px}.breakdown{gap:13px}.donut{width:102px;height:102px;flex-basis:102px}.donut:after{width:73px;height:73px}.legend{font-size:12px}.legend-percent{width:30px}}
@media(max-width:780px){.breakdown-columns{grid-template-columns:1fr;gap:28px}.legend{font-size:14px}.donut{width:124px;height:124px;flex-basis:124px}.donut:after{width:88px;height:88px}.companion{position:static}.intro{padding-top:26px}.form-actions>span{display:none}}
@media(max-width:480px){.area-input select{flex-basis:80px;width:80px}.input-section legend{font-size:17px}.input-section legend span{font-size:12px}.form-actions .button{padding:11px 13px}.donut{width:92px;height:92px;flex-basis:92px}.donut:after{width:66px;height:66px}.donut span{font-size:18px}.legend{font-size:12px}.breakdown{gap:12px}.legend-percent{width:30px}.optional-check summary{font-size:13px}.metric-top .badge{font-size:12px}.meter-caption{gap:8px}.meter-caption span:nth-child(2){text-align:center}.intro-meta{gap:9px 14px}}
@media print{.workspace{display:none!important}#results{margin-top:0}.breakdown-columns{grid-template-columns:1fr 1fr}.breakdown{gap:12px}.legend{font-size:11px}.donut{width:90px;height:90px;flex-basis:90px}.donut:after{width:63px;height:63px}.metric-card{break-inside:avoid}.status-card{break-inside:avoid}.optional-check{display:none}}

/* Architectural identity: September 2026. Existing calculator behavior is retained. */
:root {
  --ink: #193d33;
  --muted: #64736c;
  --green: #123c32;
  --lime: #d0ed9d;
  --paper: #f6f8f6;
  --line: #dce5de;
  --radius: 16px;
}
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif; }
main { max-width: 1440px; padding: 0 48px; }
.site-header { max-width: 1440px; height: 104px; padding: 0 48px; border: 0; justify-content: space-between; }
.brand { font-size: 27px; letter-spacing: -.9px; }
.brand-mark { display: block; width: 52px; height: 52px; flex: 0 0 52px; margin-right: 13px; background: none; color: var(--green); border-radius: 0; }
.brand-stack { display: flex; flex-direction: column; gap: 5px; line-height: 1; }
.brand-light { font-weight: 450; }
.brand-byline { font-size: 12px; font-weight: 400; letter-spacing: .1px; color: var(--muted); }
.brand-byline strong { color: var(--ink); font-weight: 650; }
.header-nav { display: flex; align-items: center; gap: 32px; }
.header-link { margin: 0; font-size: 14px; font-weight: 500; }
.header-link:hover { text-decoration: underline; }
.header-cta { border: 1px solid #c8d6cc; background: transparent; color: var(--ink); padding: 11px 19px; }
.header-cta:hover { background: #eaf0e7; border-color: #91aa97; }
.button { border-radius: 7px; font-size: 14px; min-height: 48px; transition: background-color .18s ease, border-color .18s ease; }
.primary { background: var(--green); }
.secondary { background: #eef2eb; }
.secondary:hover { background: #e1eadb; }
.intro { position: relative; isolation: isolate; min-height: 535px; padding: 60px 52px 54px; overflow: hidden; border-radius: 20px; background: #153b31; color: white; }
.hero-image { position: absolute; inset: 0 0 0 36%; z-index: -2; }
.hero-image img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center 48%; }
.intro::before { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(9,34,27,.98) 0%, rgba(9,34,27,.93) 26%, rgba(9,34,27,.72) 42%, rgba(9,34,27,.10) 66%, rgba(9,34,27,.02) 100%); }
.hero-content { max-width: 600px; }
.intro .eyebrow { color: var(--lime); font-size: 12px; font-weight: 600; letter-spacing: 1.7px; margin-bottom: 28px; }
.intro h1 { font-size: clamp(2.55rem, 4.2vw, 3.8rem); font-weight: 540; line-height: 1.09; letter-spacing: -.045em; margin: 0 0 23px; }
.intro h1 span { color: var(--lime); }
.hero-description { max-width: 420px; font-size: 17px; line-height: 1.65; color: #e0e8df; margin: 0 0 29px; }
.hero-cta { background: var(--lime); color: #173a2d; font-weight: 650; font-size: 15px; padding: 15px 22px; gap: 32px; }
.hero-cta:hover { background: #e1f6bd; }
.hero-cta span { font-size: 22px; line-height: 1; }
.hero-note { margin: 15px 0 0; color: #c5d2c8; font-size: 13px; }
.hero-caption { position: absolute; right: 25px; bottom: 24px; display: flex; flex-direction: column; align-items: flex-end; gap: 4px; padding: 12px 16px; border-radius: 8px; background: rgba(15,40,31,.84); color: #f1f6ed; }
.hero-caption span:first-child { font-size: 12px; letter-spacing: 1.1px; font-weight: 550; }
.hero-caption span:last-child { font-size: 12px; color: #d3dfd2; }
.intro-meta { margin: 0 0 39px; padding: 24px 0; display: flex; justify-content: center; gap: 22px 52px; color: #547060; font-size: 14px; border-bottom: 1px solid var(--line); }
.intro-meta span { display: flex; align-items: center; gap: 9px; }
.intro-meta span::before { display: grid; place-items: center; width: 21px; height: 21px; border-radius: 50%; background: #e6efdd; color: #44613e; font-size: 12px; margin: 0; }
.workspace { grid-template-columns: minmax(0, 1.85fr) minmax(310px, 1fr); gap: 30px; scroll-margin-top: 25px; }
.workspace > *, .result-grid > *, .contact > *, .fields > * { min-width: 0; }
.check-panel { border-color: #d8e2d9; box-shadow: 0 6px 28px rgba(25,57,37,.035); }
#project-form { padding: 35px 34px 29px; }
.form-heading { border-bottom: 1px solid var(--line); margin-bottom: 27px; }
.form-heading .eyebrow { font-size: 12px; letter-spacing: 1.7px; color: #638154; margin-bottom: 12px; }
.form-heading h2 { font-size: 29px; letter-spacing: -1px; font-weight: 600; }
.form-heading .muted { font-size: 14px; margin-bottom: 25px; }
.input-section legend { font-size: 18px; padding-bottom: 17px; letter-spacing: -.2px; }
.input-section legend span { font-size: 14px; letter-spacing: 0; }
.fields { gap: 23px 22px; }
input:not([type=checkbox]), select, textarea { min-height: 50px; border-color: #cbd7cd; border-radius: 7px; font-size: 16px; background: #fff; transition: border-color .18s ease, box-shadow .18s ease; }
input:not([type=checkbox]):hover, select:hover, textarea:hover { border-color: #8fa592; }
input:not([type=checkbox]):focus, select:focus, textarea:focus { border-color: #507945; box-shadow: 0 0 0 3px rgba(133,170,103,.12); }
input:disabled, select:disabled { background: #f4f6f2; color: #71806e; }
.field-help { font-size: 13px; line-height: 1.5; margin-top: 7px; }
.form-note { padding: 16px 18px; font-size: 14px; line-height: 1.6; background: #f1f5ed; border-radius: 8px; }
.optional-check summary, .checkbox-label { font-size: 14px; }
.form-actions { padding-top: 25px; margin-top: 28px; gap: 12px; }
.form-actions > span { font-size: 12px; }
.companion { background: #edf2e8; color: var(--ink); border: 1px solid #dce5d6; padding: 30px 29px 28px; min-height: 0; }
.companion-top { flex-wrap: wrap; gap: 12px; }
.companion-top .eyebrow { color: #4c6c48; font-size: 12px; letter-spacing: 1.2px; }
.mini-label { font-size: 12px; letter-spacing: .3px; padding: 4px 7px; border-color: #c2d2b9; color: #507044; border-radius: 4px; }
.companion h2 { font-size: 28px; font-weight: 550; line-height: 1.3; letter-spacing: -.9px; color: var(--ink); margin: 27px 0 28px; }
.compass-list > div { border-color: #d0ddc7; gap: 16px; padding: 22px 0; }
.number { flex: 0 0 32px; width: 32px; height: 32px; display: grid; place-items: center; padding: 0; border: 1px solid #c4d3b9; border-radius: 50%; font-size: 12px; font-weight: 500; color: #507445; }
.compass-list strong { font-size: 16px; font-weight: 600; }
.compass-list p > span { font-size: 14px; line-height: 1.6; color: #5d7356; margin-top: 5px; }
.companion-bottom { border-color: #d0ddc7; gap: 12px; margin-top: 19px; padding-top: 23px; }
.companion-bottom p { font-size: 14px; line-height: 1.65; color: #597051; }
.check-symbol { width: 27px; height: 27px; flex-basis: 27px; background: #dbe8cc; font-size: 17px; }
.method { padding: 67px 0 64px; gap: 80px; }
.method h2 { font-size: 28px; font-weight: 550; letter-spacing: -.8px; line-height: 1.32; }
.method .eyebrow { font-size: 12px; color: #587849; letter-spacing: 1.6px; margin-bottom: 18px; }
.method-details summary { font-size: 16px; font-weight: 550; line-height: 1.55; }
.method-details summary::after { color: #67805c; padding-top: 3px; }
.method-details details { padding: 21px 0; }
.method-details p { font-size: 16px; line-height: 1.7; }
.result-card { padding: 29px; }
.result-card h3 { font-size: 20px; font-weight: 600; }
.result-toolbar { gap: 18px; }
.result-toolbar > div:last-child { display: flex; flex-wrap: wrap; gap: 9px; }
.status-card { border-radius: 16px; }
.result-card .small, .metric-warning, .assumptions, .wide-note { font-size: 14px; }
.result-card .unit { font-size: 13px; }
.contact { padding: 42px; background: #eaf0e6; border: 1px solid #d5e0ce; }
.contact h2 { font-size: 32px; font-weight: 550; letter-spacing: -1px; }
.contact-copy p { font-size: 16px; line-height: 1.7; color: #5e7456; }
.contact .eyebrow { color: #58744a; font-size: 12px; }
.contact .fields { gap: 21px 18px; }
.contact input, .contact textarea { border-color: #bacbb0; }
.contact .checkbox-label { font-size: 14px; line-height: 1.6; }
.contact .privacy-hint { font-size: 13px; color: #5e7456; }
footer { max-width: 1344px; margin: 0 auto; padding: 31px 0 30px; gap: 28px; }
footer .brand-mark { width: 34px; height: 34px; flex-basis: 34px; margin-right: 10px; }
footer > span, footer a:not(.brand) { font-size: 14px; }
footer .footer-note { font-size: 12px !important; }

@media (max-width: 1439px) {
  footer { margin-left: 48px; margin-right: 48px; }
}
@media (max-width: 1100px) {
  main { padding: 0 28px; }
  .site-header { padding: 0 28px; height: 96px; }
  .intro { padding: 46px 35px; min-height: 505px; }
  .hero-description { max-width: 380px; }
  .hero-caption { right: 18px; bottom: 18px; }
  .workspace { grid-template-columns: minmax(0,1.65fr) minmax(280px,1fr); gap: 22px; }
  #project-form { padding: 29px 25px; }
  .form-heading h2 { font-size: 26px; }
  .companion { padding: 27px 23px; }
  .companion h2 { font-size: 25px; }
  .fields { gap: 21px 16px; }
  .intro-meta { gap: 20px 30px; }
  footer { margin: 0 28px; }
}
@media (max-width: 850px) {
  .hero-image { left: 22%; }
  .workspace { grid-template-columns: 1fr; }
  .companion { display: block; position: static; }
  .companion h2 br { display: none; }
  .compass-list { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 23px; }
  .compass-list > div { display: block; }
  .number { margin-bottom: 12px; }
  .companion-bottom { margin-top: 0; }
  .method { gap: 32px; }
  .hero-description { max-width: 345px; }
  .intro::before { background: linear-gradient(90deg,rgba(9,34,27,.97) 0%,rgba(9,34,27,.87) 35%,rgba(9,34,27,.18) 77%); }
  .hero-caption span:first-child { display: none; }
  .hero-caption { bottom: 16px; right: 16px; padding: 8px 11px; }
  .intro-meta { font-size: 13px; gap: 15px 24px; margin-bottom: 28px; }
}
@media (max-width: 700px) {
  main { padding: 0 18px; }
  .site-header { padding: 0 20px; height: 88px; gap: 16px; }
  .brand { font-size: 23px; }
  .brand-mark { width: 45px; height: 45px; flex-basis: 45px; margin-right: 10px; }
  .brand-byline { font-size: 12px; }
  .header-nav { gap: 0; }
  .header-link { display: none; }
  .header-cta { font-size: 14px; padding: 10px 13px; gap: 10px; min-height: 44px; }
  .intro { padding: 0; min-height: 0; border-radius: 15px; background: #12382e; }
  .hero-image { display: block; position: relative; inset: auto; z-index: 0; height: 290px; }
  .hero-image img { object-position: center 48%; }
  .intro::before { display: none; }
  .hero-content { position: relative; max-width: none; padding: 30px 27px 28px; }
  .intro .eyebrow { font-size: 12px; letter-spacing: 1.2px; margin-bottom: 20px; }
  .intro h1 { font-size: clamp(2rem,7.4vw,3rem); letter-spacing: -.04em; margin-bottom: 19px; line-height: 1.12; }
  .hero-description { max-width: 460px; font-size: 16px; line-height: 1.65; margin-bottom: 23px; }
  .hero-cta { font-size: 15px; padding: 14px 20px; gap: 25px; }
  .hero-note { font-size: 12px; line-height: 1.5; margin-top: 13px; }
  .hero-caption { top: 255px; bottom: auto; right: 10px; padding: 5px 9px; border-radius: 5px; }
  .hero-caption span:last-child { font-size: 12px; }
  .intro-meta { padding: 21px 0; gap: 12px 22px; justify-content: flex-start; margin-bottom: 26px; font-size: 13px; }
  .intro-meta span { gap: 7px; }
  .intro-meta span::before { width: 18px; height: 18px; font-size: 11px; }
  #project-form { padding: 29px 24px 25px; }
  .form-heading h2 { font-size: 26px; }
  .companion { padding: 27px 25px; }
  .companion h2 { font-size: 26px; }
  .compass-list { display: block; }
  .compass-list > div { display: flex; gap: 15px; padding: 20px 0; }
  .number { margin-bottom: 0; }
  .method { padding: 45px 0; grid-template-columns: 1fr; gap: 25px; }
  .method h2 { font-size: 26px; }
  .method h2 br { display: none; }
  .method .eyebrow { margin-bottom: 13px; }
  .contact { padding: 29px 24px; }
  .contact h2 { font-size: 28px; }
  footer { margin: 0 18px; padding: 27px 0; gap: 20px; }
  footer nav { margin-left: 0; }
}
@media (max-width: 480px) {
  .site-header { padding: 0 18px; gap: 10px; }
  .brand { font-size: 22px; }
  .brand-mark { width: 43px; height: 43px; flex-basis: 43px; margin-right: 9px; }
  .header-cta { font-size: 13px; padding: 10px 11px; gap: 10px; }
  .header-cta span { display: none; }
  .hero-image { height: 225px; }
  .hero-caption { top: 190px; }
  .hero-content { padding: 27px 22px 26px; }
  .intro .eyebrow { font-size: 12px; letter-spacing: .75px; line-height: 1.6; }
  .hero-cta { width: 100%; justify-content: space-between; }
  .hero-note { font-size: 12px; }
  #project-form { padding: 25px 20px; }
  .fields { grid-template-columns: 1fr; gap: 21px; }
  .form-heading h2 { font-size: 25px; }
  .form-heading .muted { line-height: 1.6; }
  .input-section legend { font-size: 18px; }
  .input-section legend span { font-size: 14px; }
  .field-help { font-size: 13px; }
  .form-actions .button { font-size: 14px; padding: 12px 15px; }
  .optional-check summary { font-size: 14px; }
  .optional-check summary span { display: inline-block; }
  .companion { padding: 26px 22px; }
  .companion h2 { font-size: 25px; }
  .result-card { padding: 24px 20px; }
  .result-toolbar .button { font-size: 14px; }
  .metric-value { font-size: 36px; }
  .legend { font-size: 13px; }
  .breakdown { gap: 12px; flex-wrap: wrap; }
  .legend { flex: 1 1 180px; }
  .donut { width: 102px; height: 102px; flex-basis: 102px; }
  .donut:after { width: 74px; height: 74px; }
  .contact { padding: 28px 20px; }
  .contact-actions .button { font-size: 14px; gap: 12px; }
  footer > span, footer a:not(.brand) { font-size: 14px; }
}
@media (max-width: 359px) {
  main { padding: 0 12px; }
  .site-header { padding: 0 12px; }
  .brand-mark { width: 37px; height: 37px; flex-basis: 37px; }
  .brand { font-size: 20px; }
  .header-cta { padding: 9px; font-size: 12px; }
  .hero-content { padding: 25px 20px; }
  .intro h1 { font-size: 1.85rem; }
  #project-form { padding: 23px 17px; }
  .form-actions .button { font-size: 13px; padding: 12px; }
  .companion-top { gap: 9px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}
@media print {
  .intro-meta { display: none !important; }
  main { max-width: none; padding: 0; }
  .result-card { padding: 17px; box-shadow: none; }
  .result-card h3 { font-size: 18px; }
  .result-card .small, .metric-warning, .assumptions, .wide-note { font-size: 12px; }
}

/* Visitor-controlled introduction, hosted alongside the calculator. */
.hero-video-button { position: absolute; right: 30px; bottom: 121px; display: flex; align-items: center; gap: 16px; padding: 20px 22px; background: rgba(249,252,242,.96); color: var(--green); border: 1px solid rgba(255,255,255,.8); border-radius: 12px; box-shadow: 0 8px 35px rgba(8,30,20,.18); text-align: left; transition: background-color .2s, transform .2s; }
.hero-video-button:hover { background: #fff; transform: translateY(-2px); }
.video-play-icon { display: grid; place-items: center; flex: 0 0 49px; width: 49px; height: 49px; border-radius: 50%; background: var(--green); color: var(--lime); }
.video-play-icon svg { width: 27px; height: 27px; margin-left: -2px; }
.video-trigger-copy { display: flex; flex-direction: column; gap: 6px; }
.video-trigger-copy strong { font-size: 19px; font-weight: 650; letter-spacing: -.3px; }
.video-trigger-copy > span { font-size: 13px; color: #5b7053; }
body.video-open { overflow: hidden; }
.video-dialog { border: 0; border-radius: 16px; padding: 0; width: min(1000px,calc(100% - 36px)); max-height: calc(100dvh - 40px); overflow-y: auto; color: var(--ink); background: #f8faf6; box-shadow: 0 30px 100px rgba(0,0,0,.4); }
.video-dialog::backdrop { background: rgba(6,24,18,.78); backdrop-filter: blur(5px); }
.video-dialog-header { display: flex; gap: 24px; justify-content: space-between; align-items: center; padding: 23px 27px 21px; }
.video-dialog-header .eyebrow { font-size: 12px; color: #638154; margin: 0 0 6px; }
.video-dialog-header h2 { font-size: 23px; margin: 0; }
.video-close { display: grid; place-items: center; flex: 0 0 44px; width: 44px; height: 44px; border: 1px solid #d5dfd1; border-radius: 50%; font: 29px/1 Arial,sans-serif; background: #eef3e9; color: var(--ink); }
.video-close:hover { background: #e0ead8; }
.intro-video { display: block; width: 100%; height: auto; aspect-ratio: 16/9; background: #123c32; }
.intro-video::cue { font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif; background: rgba(5,25,17,.85); color: white; }
.video-dialog-footer { padding: 23px 27px 26px; }
.video-transcript { margin-top: 18px; color: var(--muted); }
.video-transcript summary { font-size: 14px; cursor: pointer; font-weight: 500; }
.video-transcript p { max-width: 820px; font-size: 16px; line-height: 1.7; }
.video-error { padding: 12px 27px; font-size: 14px; }
@media (max-width: 1100px) {
  .hero-video-button { right: 23px; bottom: 102px; padding: 17px; gap: 12px; }
  .video-trigger-copy strong { font-size: 18px; }
  .video-trigger-copy > span { font-size: 12px; }
}
@media (min-width: 701px) and (max-width: 850px) {
  .hero-video-button { right: 18px; bottom: 92px; max-width: 280px; }
  .video-trigger-copy > span { max-width: 165px; line-height: 1.55; }
}
@media (max-width: 700px) {
  .hero-video-button { top: 171px; bottom: auto; left: 16px; right: 16px; padding: 14px 17px; gap: 13px; }
  .video-play-icon { width: 42px; height: 42px; flex-basis: 42px; }
  .video-trigger-copy strong { font-size: 18px; }
  .video-trigger-copy > span { font-size: 12px; }
  .video-dialog { width: calc(100% - 20px); max-height: calc(100dvh - 24px); border-radius: 12px; }
  .video-dialog-header { padding: 18px; gap: 15px; }
  .video-dialog-header h2 { font-size: 19px; line-height: 1.3; }
  .video-dialog-header .eyebrow { font-size: 12px; }
  .video-dialog-footer { padding: 20px 18px; }
  .video-dialog-footer > .button { width: 100%; }
  .video-error { padding: 12px 18px; }
}
@media (max-width: 480px) {
  .hero-video-button { top: 111px; padding: 13px 14px; gap: 11px; }
  .video-trigger-copy { gap: 4px; }
  .video-trigger-copy strong { font-size: 17px; }
}
@media (max-width: 359px) {
  .hero-video-button { top: 94px; }
  .video-trigger-copy { min-width: 0; }
}
@media print {
  .video-dialog, .hero-video-button { display: none !important; }
}