@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Manrope:wght@500;600;650;700;750;800&display=swap');
:root{--navy:#132b36;--teal:#0b6d65;--teal-dark:#08534e;--ink:#183340;--muted:#687b84;--line:#dce5e8;--bg:#f5f8f9;--amber:#99661b;--amber-bg:#fff6e3;--red:#ae4039;--red-bg:#fff0ed;--green-bg:#edf7f4;--white:#fff}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.55 'DM Sans',Arial,sans-serif}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}a{color:var(--teal)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #65bdb3;outline-offset:3px}button{transition:background .15s,border .15s,transform .15s}button:disabled{opacity:.5;cursor:default}.shell{display:grid;grid-template-columns:250px minmax(0,1fr);min-height:100vh}.sidebar{background:var(--navy);color:#d4e1e6;padding:34px 24px 25px;display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0;width:250px}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:white;font-family:Manrope,Arial,sans-serif;font-weight:750;font-size:21px;line-height:1.35}.brand small{display:block;color:#92abb5;font:9px 'DM Sans',Arial,sans-serif;letter-spacing:1.8px;margin-top:5px}.brand-mark{width:39px;height:42px;background:#e0f1eb;color:#176b60;border-radius:9px;display:grid;place-items:center;font-size:27px;position:relative}.brand-mark span{font-size:16px;position:absolute;bottom:1px;right:0;color:#176b60;background:#e0f1eb}.nav-caption{font-size:10px;letter-spacing:1.7px;color:#8ca6b0;margin:60px 0 20px 11px}.nav-step{border:0;background:none;color:#9fb3bc;display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:14px 11px;border-radius:8px;margin-bottom:8px}.nav-step:hover{background:#1b3744}.nav-step.active{background:#23454e;color:#fff}.step-number{border:1px solid #4a626e;width:27px;height:27px;border-radius:50%;font-size:11px;display:grid;place-items:center;flex-shrink:0}.active .step-number{background:#c3e4db;border-color:#c3e4db;color:#1a594e;font-weight:700}.nav-step.completed .step-number{color:#b9dbd2;border-color:#749a90}.nav-step strong{display:block;font-size:13px;font-weight:550}.nav-step small{display:block;font-size:10px;color:#a6bac2;margin-top:1px}.side-note{margin-top:auto;padding:25px 10px 20px;font-size:12px;color:#a3bac3}.mini-icon{display:grid;place-items:center;border:1px solid #81a9ab;border-radius:50%;width:19px;height:19px;color:#b9dacf;font-size:11px;margin-bottom:12px}.side-note strong{font-size:12px;color:#d9e8eb;display:block}.side-note p{margin:8px 0 0}.side-link{color:#d7e7eb;background:none;border:0;border-top:1px solid #34505c;text-align:left;padding:17px 0;font-size:12px}.side-link span{float:right}.side-footer{font-size:9px;letter-spacing:1.7px;color:#89a4af;border-top:1px solid #34505c;padding-top:18px}.side-footer span{letter-spacing:0;font-size:10px;display:block;margin-top:6px}.workspace{grid-column:2;min-width:0}.topbar{height:76px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 45px;background:#fff;font-size:12px;color:var(--muted)}.topbar strong{font-weight:500;color:#39525d}.separator{padding:0 12px;color:#b8c6cb}.quiet{background:white;border:1px solid var(--line);border-radius:6px;padding:8px 13px;color:#415c67;font-size:12px}.quiet:hover{background:var(--bg)}main{max-width:1360px;margin:auto;padding:38px 45px 18px}.page-top{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:27px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.8px;color:var(--teal);margin-bottom:8px}h1,h2,h3{font-family:Manrope,Arial,sans-serif;line-height:1.28}h1{font-size:30px;font-weight:750;letter-spacing:-1px;margin:0 0 12px}h2{font-size:20px;margin:0 0 10px;letter-spacing:-.5px}h3{font-size:16px;margin:0 0 8px}.intro{font-size:14px;color:var(--muted);max-width:640px;margin:0}.basis-badge{font-size:10px;white-space:nowrap;background:#edf3f3;border:1px solid #d8e4e2;border-radius:20px;padding:6px 10px;color:#42635e;margin-top:6px;display:flex;align-items:center;gap:6px}.basis-badge span{width:5px;height:5px;background:#50978a;border-radius:50%}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:24px;align-items:start}.panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:27px;margin-bottom:18px}.panel-title{display:flex;align-items:center;gap:10px;margin-bottom:7px}.panel-title .icon{width:30px;height:30px;border-radius:7px;background:#eef5f3;color:var(--teal);display:grid;place-items:center}.panel p.hint{margin:0 0 22px;color:var(--muted);font-size:12px}.option-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px}.location-card{position:relative;text-align:left;border:1px solid var(--line);border-radius:8px;padding:18px 14px;min-height:112px;background:#fff;color:var(--ink)}.location-card:hover{border-color:#79afa4}.location-card.selected{background:#f0f8f5;border:1.5px solid #418e7e;padding:17.5px 13.5px}.location-card b{font-size:13px;display:block;margin-top:12px}.location-card small{font-size:11px;color:var(--muted);display:block;margin-top:4px}.location-card svg{width:23px;height:23px;stroke:#52736f;fill:none;stroke-width:1.5}.radio-mark{position:absolute;right:12px;top:14px;width:15px;height:15px;border-radius:50%;border:1px solid #bdccce}.selected .radio-mark{border:5px solid var(--teal)}.question{margin-top:24px;padding-top:22px;border-top:1px solid #e9eeef}.question:first-child{margin-top:0;border-top:0;padding-top:0}label.field-label,.question legend{display:block;font-weight:600;font-size:13px;margin-bottom:9px}fieldset{border:0;margin:0;padding:0}.question legend{float:left;width:100%}.question legend+*{clear:both}.field-help{font-size:11px;color:var(--muted);margin:7px 0 0}.choice-row{display:flex;gap:8px;flex-wrap:wrap}.choice{border:1px solid var(--line);border-radius:6px;background:#fff;color:#5c737c;font-size:12px;padding:9px 16px}.choice.selected{border-color:#408f81;color:var(--teal-dark);background:#edf7f3;font-weight:600}.field{margin-top:22px}.field:first-child{margin-top:0}.field label{display:block;font-weight:600;font-size:13px;margin-bottom:8px}.input-wrap{position:relative}.input-wrap input{padding-right:55px}.unit{position:absolute;right:14px;top:11px;color:var(--muted);font-size:12px;pointer-events:none}input,select{color:var(--ink);width:100%;background:#fff;border:1px solid #cddade;border-radius:6px;height:45px;padding:9px 12px;font-size:14px}input:hover,select:hover{border-color:#8ca9ad}input::placeholder{color:#a4b3ba;font-size:13px}.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.row.three{grid-template-columns:1fr 1fr 1fr}.row .field{margin-top:0}.row.gap{margin-top:22px}.subtle-note{font-size:12px;background:#f1f6f7;border-radius:7px;padding:13px 15px;color:#4e6973;margin-top:18px}.callout{padding:14px 16px;border-radius:8px;border:1px solid #ecddb8;background:#fff9ec;color:#846023;font-size:12px;margin-top:20px}.callout strong{display:block;font-size:13px;margin-bottom:4px}.ref-chip{font-size:11px;color:var(--teal);background:#edf7f3;border-radius:20px;padding:4px 9px;display:inline-block}.ref-info{display:flex;gap:8px;align-items:center;margin-top:12px;color:var(--muted);font-size:11px}.summary-panel{background:#edf2f3;border:1px solid #dee7e9;border-radius:10px;padding:21px 20px;position:sticky;top:24px}.summary-head{display:flex;align-items:center;justify-content:space-between}.summary-head h3{font-size:13px;letter-spacing:0;margin:0}.summary-head span{font-size:9px;color:var(--muted);border:1px solid #cfdcde;border-radius:20px;padding:2px 7px}.summary-row{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;padding:13px 0;border-bottom:1px solid #dbe5e7;font-size:11px}.summary-row span{color:#6c818a}.summary-row b{text-align:right;font-weight:600;max-width:145px;overflow-wrap:anywhere}.summary-footer{margin-top:17px;color:var(--muted);font-size:11px}.summary-footer strong{display:block;color:#365961;margin-bottom:4px;font-weight:600}.actions{max-width:calc(100% - 284px);display:flex;justify-content:space-between;align-items:center;margin:20px 0 15px;border-top:1px solid var(--line);padding-top:22px}.primary{background:var(--teal);color:white;border:1px solid var(--teal);border-radius:7px;padding:12px 21px;font-size:13px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:18px}.primary:hover{background:var(--teal-dark);border-color:var(--teal-dark)}.secondary{border:1px solid var(--line);border-radius:7px;background:white;padding:11px 17px;font-size:12px;color:#47636e}.secondary:hover{background:#edf3f3}.text-button{border:0;background:none;color:var(--muted);font-size:11px;padding:6px 0}.text-button:hover{color:var(--teal)}.action-hint{font-size:11px;color:#82949c}.main-footer{max-width:1360px;margin:10px auto 0;padding:20px 45px 24px;display:flex;gap:20px;justify-content:space-between;align-items:center;font-size:10px;color:#84969e}.detail{border-top:1px solid #e4ebed;margin-top:22px;padding-top:15px;font-size:12px}.detail summary{font-weight:600;color:#3b6971;cursor:pointer;padding:4px 0;list-style-position:inside}.detail p{color:var(--muted);margin:12px 0 0}.detail .field{margin-top:16px}.error-content{background:var(--red-bg);border:1px solid #edc7c0;border-radius:8px;color:#953e32;padding:13px 18px;margin-bottom:22px;font-size:12px}.error-content ul{margin:5px 0;padding-left:20px}.live-geometry{display:flex;justify-content:space-between;border:1px solid #d9e9e2;background:#f3faf6;border-radius:7px;padding:15px;margin-top:20px;font-size:12px}.live-geometry strong{font-size:16px;color:var(--teal)}.geometry-drawing{margin-top:22px;display:flex;gap:18px;align-items:center;border-top:1px solid var(--line);padding-top:18px}.geometry-drawing svg{width:74px;height:60px;flex-shrink:0}.geometry-drawing p{font-size:11px;color:var(--muted);margin:0}.result-banner{border:1px solid #cadfd8;border-left:4px solid #337d6f;border-radius:10px;background:#f0f8f4;padding:24px;margin-bottom:20px}.result-banner h2{font-size:24px;margin-bottom:9px;letter-spacing:-.8px}.result-banner p{margin:0;color:#526e69;font-size:13px}.result-banner.review{background:var(--amber-bg);border-color:#ead8b3;border-left-color:#b58435}.result-banner.review p{color:#846c43}.result-banner.exceeds{background:var(--red-bg);border-color:#eecdc5;border-left-color:var(--red)}.result-banner.exceeds p{color:#945b52}.result-banner .eyebrow{color:inherit;font-size:9px}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px}.metric{border:1px solid var(--line);border-radius:9px;padding:19px;background:#fff}.metric .label{font-size:11px;color:var(--muted);margin-bottom:9px;display:block}.metric .value{font-family:Manrope,Arial,sans-serif;font-size:27px;font-weight:750;letter-spacing:-.9px;line-height:1.25}.metric .value.small{font-size:20px;letter-spacing:-.4px}.metric .value span{font-family:'DM Sans',Arial,sans-serif;font-size:12px;font-weight:500;letter-spacing:0;margin-left:4px;color:var(--muted)}.metric p{font-size:11px;color:var(--muted);margin:9px 0 0}.metric.emergency{border-color:#78aaa0;background:#f4faf7}.result-wide{grid-column:1/-1}.requirement{padding:16px 0;border-top:1px solid #e8edef}.requirement:first-of-type{margin-top:10px}.requirement h3{font-size:13px;margin:0 0 5px}.requirement p{font-size:12px;color:#5a737c;margin:0}.source-tag{display:block;font-size:10px;color:#78918f;margin-top:7px}.review-list{padding-left:19px;font-size:12px;color:#657c84;margin-bottom:0}.review-list li{padding-left:3px;margin-bottom:10px}.result-divider{display:flex;align-items:center;gap:9px;padding:12px 0 20px;font-size:11px;color:#7b8c92}.result-divider:before,.result-divider:after{content:'';height:1px;background:var(--line);flex:1}.calculation-table{width:100%;border-collapse:collapse;margin-top:15px;font-size:12px}.calculation-table th,.calculation-table td{text-align:left;border-bottom:1px solid #e4ebed;padding:10px 3px}.calculation-table td:nth-child(2){text-align:right;font-variant-numeric:tabular-nums}.calculation-table th{font-size:10px;color:var(--muted);font-weight:500}.calculation-table td small{color:var(--muted)}.status-line{padding:12px 15px;background:#eef6f2;border-radius:6px;margin-top:14px;font-size:12px;color:var(--teal-dark)}.status-line.warn{background:var(--amber-bg);color:var(--amber)}.status-line.bad{background:var(--red-bg);color:var(--red)}.result-toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:15px 0 0}.print-context{display:none}dialog{width:min(760px,calc(100% - 32px));max-height:85vh;padding:29px;border:1px solid #cfdddf;border-radius:13px;color:var(--ink);box-shadow:0 20px 70px #102c3930}dialog::backdrop{background:#0a253b70;backdrop-filter:blur(3px)}.dialog-head{display:flex;justify-content:space-between;align-items:flex-start;gap:15px;margin-bottom:15px}.dialog-head h2{font-size:23px}.close{background:#eff4f5;border:0;border-radius:50%;font-size:22px;line-height:30px;width:32px;height:32px;color:#55717c}.sources-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.source-block{background:#f4f7f7;border:1px solid #e2e9ea;padding:16px;border-radius:7px}.source-block h3{font-size:13px}.source-block p{font-size:12px;color:var(--muted);margin:0}.method-list{font-size:12px;padding-left:19px;color:var(--muted)}.method-list li{margin:12px 0}.source-footnote{font-size:11px;background:var(--amber-bg);padding:13px 15px;border-radius:6px;color:var(--amber)}.example-list{display:grid;gap:10px}.example-list button{text-align:left;border:1px solid var(--line);border-radius:8px;background:white;padding:16px;color:var(--ink)}.example-list button:hover{border-color:#6eaa9e;background:#f4faf7}.example-list b{font-size:17px}.example-list span:not(.pill){display:block;font-size:12px;color:var(--muted);margin-top:7px}.example-list small{display:block;font-size:11px;color:#7b8d95;margin-top:4px}.pill{display:inline-block;font-size:10px;padding:2px 6px;border-radius:4px;background:#eaf4f0;color:#296b5f;vertical-align:middle;margin-left:6px}.pill.amber{background:#fff2d7;color:#9c6a21}dialog>p{font-size:13px;color:var(--muted)}.status-dot{width:5px;height:5px;background:#4a8d80;border-radius:50%;display:inline-block;margin-right:5px}.bottom-note{font-size:11px;color:#82969e;margin-top:16px}.empty-state{text-align:center;padding:45px 25px}.empty-state p{font-size:13px;color:var(--muted)}
@media(min-width:1550px){main{padding-top:48px}.panel{padding:30px}.sidebar{width:270px}.shell{grid-template-columns:270px minmax(0,1fr)}.topbar{padding:0 max(45px,calc((100vw - 270px - 1270px)/2))}}
@media(max-width:1150px){.shell{grid-template-columns:215px minmax(0,1fr)}.sidebar{width:215px;padding:26px 18px}.brand{font-size:19px}.content-grid{grid-template-columns:minmax(0,1fr) 210px;gap:16px}main{padding:30px 25px 12px}.topbar{padding:0 25px}.main-footer{padding:15px 25px}.actions{max-width:calc(100% - 226px)}.panel{padding:22px}.summary-panel{padding:18px 14px}.basis-badge{display:none}h1{font-size:27px}}
@media(max-width:900px){.shell{grid-template-columns:180px minmax(0,1fr)}.sidebar{width:180px;padding:24px 14px}.brand{font-size:16px;gap:8px}.brand-mark{width:30px;height:35px;font-size:24px}.brand small{font-size:7px;letter-spacing:1.3px}.nav-caption{font-size:9px;margin-top:42px}.nav-step{padding:12px 6px;gap:8px}.nav-step small{font-size:9px}.nav-step strong{font-size:12px}.content-grid{display:block}.summary-panel{position:static;margin-top:20px;display:none}.actions{max-width:none}.side-note{padding-left:6px;padding-right:6px}.page-top{margin-bottom:22px}.main-footer>span{max-width:220px}}
@media(max-width:600px){.shell{display:block}.sidebar{position:static;width:auto;padding:16px 18px 0}.brand{font-size:19px}.brand small{font-size:8px}.sidebar .nav-caption,.side-note,.side-link,.side-footer{display:none}.sidebar nav{display:flex;gap:5px;margin-top:15px}.nav-step{flex-direction:column;align-items:center;justify-content:flex-start;gap:6px;padding:10px 5px 12px;margin:0;flex:1;border-radius:7px 7px 0 0}.nav-step strong{font-size:10px;white-space:nowrap}.nav-step small{display:none}.step-number{width:23px;height:23px;font-size:10px}.workspace{width:100%}.topbar{height:54px;padding:0 18px;font-size:10px}.topbar .separator{padding:0 5px}.quiet{font-size:10px;padding:6px 8px}main{padding:25px 17px 10px}h1{font-size:26px}.intro{font-size:13px}.panel{padding:20px 18px}.option-grid{gap:9px}.location-card{padding:15px 11px;min-height:109px}.location-card.selected{padding:14.5px 10.5px}.location-card b{font-size:12px}.location-card small{font-size:10px}.row.three{gap:10px}.row{gap:12px}.row .field label{font-size:11px}.choice{padding:8px 13px}.question legend{font-size:12px}.actions{padding-top:18px;gap:10px}.primary{padding:11px 15px;font-size:12px;gap:15px}.action-hint{font-size:10px}.result-banner{padding:20px}.result-banner h2{font-size:22px}.result-grid{gap:11px}.metric{padding:16px 14px}.metric .value{font-size:25px}.metric .value.small{font-size:18px}.metric .value span{font-size:11px}.metric p{font-size:10px}.main-footer{padding:15px 18px;font-size:9px;gap:10px}.main-footer>span{max-width:190px}.sources-grid{grid-template-columns:1fr}dialog{padding:22px}.result-toolbar .secondary{font-size:11px}}
@media print{body{background:#fff;color:#172d36;font-size:11px}.sidebar,.topbar,.actions,.main-footer,.result-toolbar,.basis-badge,#summary,#error-box,.detail.print-hide{display:none!important}.shell{display:block}.workspace{width:100%}main{padding:0;max-width:none}.page-top{margin-bottom:15px}.intro{font-size:11px}.content-grid{display:block}.panel,.result-banner,.metric{break-inside:avoid;padding:15px;margin-bottom:12px;border-radius:0;box-shadow:none}.panel p,.result-banner p,.review-list{font-size:10px}.result-banner h2{font-size:20px}.metric .value{font-size:23px}.result-grid{gap:10px}.print-context{display:block;font-size:10px;margin:10px 0 18px;padding-bottom:10px;border-bottom:1px solid #aaa}.detail{display:block}.detail>summary{font-size:12px}.detail>.print-details{display:block!important}details:not([open])>*:not(summary){display:block!important}.eyebrow{font-size:8px}.bottom-note{font-size:9px}a{color:inherit;text-decoration:none}@page{margin:15mm}}