:root{--paper:#F5F0E6;--surface:#fff;--ink:#2B2B2B;--muted:#5A5750;--line:#D9D0BF;--green:#2B2B2B;--tint:#FAF7F0;--amber:#76500c;--amber-bg:#fff6dc;--red:#a4372e;--radius:5px;font-family:'Segoe UI',Arial,sans-serif;color:var(--ink);background:var(--paper);font-size:14px;line-height:1.5}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer;border:1px solid var(--line);border-radius:var(--radius);padding:9px 13px;background:var(--surface);color:var(--ink);font-weight:600}button:hover{background:var(--tint)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #A97142;outline-offset:2px}a{color:var(--green)}input,select,textarea{border:1px solid var(--line);border-radius:4px;background:#fff;color:var(--ink);padding:8px 10px;min-width:0;width:100%}input[type=number]{font-variant-numeric:tabular-nums}input:invalid{border-color:var(--red)}textarea{resize:vertical}h1,h2,h3,p{margin-top:0}h1{font-size:34px;line-height:1.2;letter-spacing:-1px;margin-bottom:10px;font-weight:600}h2{font-size:18px;font-weight:600}h3{font-size:16px}button.primary{background:var(--green);color:white;border-color:var(--green);padding:12px 18px}button.primary:hover{background:#3c3833}.sidebar{position:fixed;inset:0 auto 0 0;width:236px;background:#2B2B2B;color:#F5F0E6;padding:30px 20px;display:flex;flex-direction:column;overflow:auto}.brand{font-size:23px;letter-spacing:2px;line-height:1.3;font-weight:600;color:white;text-decoration:none;margin-bottom:30px}.brand span:last-child{display:block;font-size:9px;letter-spacing:2px;padding-left:35px;margin-top:5px}.brand-mark{display:inline-block;color:#A97142;font-size:30px;vertical-align:middle;margin-right:5px}.side-label{font-size:10px;letter-spacing:1.8px;color:#5A5750;font-weight:600;margin:20px 0 12px}.sidebar select{background:#3c3833;color:white;border-color:#75695d;padding:11px 8px}.project-actions{display:flex;gap:6px;margin-top:9px}.sidebar button{color:#F5F0E6;background:transparent;border-color:#75695d;font-size:11px;padding:8px}.sidebar button:hover{background:#3c3833}.sidebar nav{display:grid;gap:5px}.sidebar nav button{display:flex;align-items:center;text-align:left;gap:10px;font-size:12px;border:0;padding:11px 10px;border-radius:3px}.sidebar nav button.active{background:#E9D9C6;color:#2B2B2B}.nav-num{font-size:10px;opacity:.8;font-variant-numeric:tabular-nums}.side-bottom{margin-top:auto;padding-top:38px;color:#F5F0E6;font-size:11px}.side-bottom p{font-size:11px;line-height:1.7;color:#5A5750;margin:8px 0 12px}.local-dot{display:inline-block;width:6px;height:6px;background:#A97142;border-radius:50%;margin-right:5px}.shell{margin-left:236px}.topbar{height:58px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 40px;color:var(--muted);font-size:10px;letter-spacing:1px}.slash{padding:0 16px;color:#D9D0BF}#saveStatus{font-size:11px;letter-spacing:0}main{max-width:1560px;padding:34px 40px 22px;margin:0 auto}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:0 0 24px}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--muted);font-weight:700;margin-bottom:12px}.subtitle{font-size:13px;color:var(--muted);margin-bottom:0}.notice{background:var(--amber-bg);border:1px solid #e6d5a2;border-left:3px solid #A97142;padding:12px 15px;font-size:11px;color:#694c1f;display:flex;gap:14px;align-items:center;margin-bottom:25px}.notice strong{flex-shrink:0;font-weight:600}.project-meta{display:grid;grid-template-columns:1.5fr .7fr 1fr 1fr;gap:15px;padding-bottom:24px}.project-meta label{font-size:9px;letter-spacing:1.3px;color:var(--muted);font-weight:700}.project-meta input{margin-top:7px;letter-spacing:0;font-size:13px;font-weight:400;padding:10px}.metrics{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:white;border-radius:var(--radius);margin-bottom:30px}.metric{padding:18px 22px;border-right:1px solid var(--line)}.metric:last-child{border:0}.metric-label{font-size:10px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);margin-bottom:8px}.metric-value{font-size:26px;line-height:1.2;letter-spacing:-.5px;font-variant-numeric:tabular-nums;font-weight:600}.metric small{font-size:11px;font-weight:400;color:var(--muted);margin-left:5px;letter-spacing:0}.metric-foot{font-size:10px;color:var(--muted);margin-top:8px}.viewbar{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:18px}.tabs{display:flex;gap:22px;overflow:auto}.tabs button{white-space:nowrap;border:0;background:none;padding:12px 0;border-radius:0;font-size:12px;color:var(--muted);border-bottom:2px solid transparent}.tabs button.active{color:var(--ink);border-bottom-color:var(--green)}.tabs span{font-size:10px;padding:2px 4px;margin-left:4px;background:#E9D9C6}.search{width:220px;flex-shrink:0}.search input{font-size:11px;padding:8px 10px;background:transparent;margin-bottom:6px}.work-caption{display:flex;justify-content:space-between;align-items:baseline;margin:24px 0 14px}.work-caption h2{font-size:17px;margin:0}.work-caption span{font-size:10px;color:var(--muted)}.stage-section{margin:0 0 24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden}.stage-title{padding:13px 17px;display:flex;align-items:center;gap:11px;background:#E9D9C6;border-bottom:1px solid var(--line)}.stage-title h3{margin:0;font-size:13px}.stage-title .stage-index{font-size:10px;color:var(--muted);border:1px solid #D9D0BF;border-radius:3px;padding:2px 6px}.stage-title .stage-note{margin-left:auto;font-size:10px;color:var(--muted)}.table-scroll{overflow:auto}.scroll-hint{font-size:10px;color:var(--muted);padding:7px 16px;margin:0;border-bottom:1px solid var(--line)}table{border-collapse:collapse;width:100%;table-layout:fixed;font-size:12px}th{text-align:left;padding:10px 16px;font-size:9px;letter-spacing:1px;font-weight:700;color:var(--muted);background:#FAF7F0;border-bottom:1px solid var(--line)}td{padding:9px 16px;vertical-align:middle;border-bottom:1px solid #D9D0BF;overflow-wrap:anywhere}tr:last-child td{border-bottom:0}th:nth-child(1){width:27%}th:nth-child(2){width:22%}th:nth-child(3){width:9%}th:nth-child(4){width:30%}th:nth-child(5){width:12%}td input,td select{font-size:12px;min-height:34px;padding:6px 8px}td input[type=number]{text-align:right}td .result{font-variant-numeric:tabular-nums;font-weight:600;font-size:13px;display:block;text-align:right;padding-right:8px}.result-row{background:#FAF7F0}.result-row.total-row{background:#E9D9C6}td.rule{font-size:10px;color:var(--muted);line-height:1.6}td.unit{font-size:10px;color:var(--muted)}.status{font-size:9px;padding:3px 6px;display:inline-block;border-radius:3px;background:#E9D9C6;color:#5A5750;white-space:nowrap}.status.pending{background:var(--amber-bg);color:var(--amber)}.status.issue{background:#fae9e4;color:var(--red)}.status.reviewed{background:#E9D9C6;color:#2B2B2B}.status.na{background:#eee;color:#666}.table-help{padding:12px 16px;font-size:11px;color:var(--muted);border-top:1px solid var(--line);margin:0}.guide-table th:nth-child(1){width:22%}.guide-table th:nth-child(2){width:33%}.guide-table th:nth-child(3){width:16%}.guide-table th:nth-child(4){width:15%}.guide-table th:nth-child(5){width:14%}.guide-table td{vertical-align:top}.guide-table small{display:block;color:var(--muted);font-size:10px;margin-top:4px}.guide-table .rule{font-size:11px;color:#5A5750}.guide-table textarea{font-size:11px;min-height:36px;padding:6px}.diagram-strip{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:0 0 24px}.diagram-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}.diagram-card h3{margin-bottom:3px;font-size:13px}.diagram-card p{font-size:11px;color:var(--muted)}svg{width:100%;height:230px;display:block}svg text{font:10px 'Segoe UI',Arial,sans-serif;fill:var(--ink)}.empty{padding:36px 20px;text-align:center;color:var(--muted);background:white;border:1px dashed var(--line);font-size:13px}.mix-table{table-layout:auto}.mix-table th,.mix-table td{width:auto}.mix-actions{padding:10px 16px}.mix-actions button{font-size:11px}.issues-panel{border:1px solid #E9D9C6;background:#fffbef;padding:14px 18px;margin-top:24px;font-size:11px;color:#6d5528;border-radius:var(--radius)}.issues-panel summary{cursor:pointer;font-weight:600;font-size:12px}.issues-panel ul{margin:12px 0 2px;padding-left:18px;display:grid;gap:6px}.project-notes{margin-top:26px}.project-notes h2{font-size:13px}.project-notes textarea{font-size:12px}footer{font-size:10px;color:var(--muted);border-top:1px solid var(--line);padding:18px 0 0;margin-top:26px}.export-wrap{position:relative;flex-shrink:0}#exportMenu{position:absolute;z-index:10;right:0;top:48px;width:235px;background:white;border:1px solid var(--line);box-shadow:0 8px 24px #213b3320;padding:6px;border-radius:4px}#exportMenu button{display:block;width:100%;text-align:left;border:0;font-size:12px;font-weight:400}.project-actions button{flex:1}.source-card{padding:24px;background:white;border:1px solid var(--line);margin-bottom:18px}.source-card h3{font-size:15px}.source-card p,.source-card li{font-size:12px;line-height:1.8}.source-card ul{padding-left:20px}.source-card dl{font-size:12px;display:grid;grid-template-columns:140px 1fr;gap:10px}.source-card dt{font-weight:600}.source-card dd{margin:0}.sensitivity-table{table-layout:auto}.sensitivity-table td{text-align:right;font-variant-numeric:tabular-nums}.sensitivity-table td.positive{background:#E9D9C6}.sensitivity-table td.negative{background:#fff0e8}.sensitivity-table th{width:auto}#toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:#2B2B2B;color:white;border:1px solid #D9D0BF;border-radius:5px;padding:12px 20px;font-size:12px;max-width:90vw;z-index:100}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:fixed;top:-100px;z-index:200;background:white;padding:10px}.skip:focus{top:0}#printReport{display:none}[hidden]{display:none!important}
@media(max-width:1200px){main{padding:28px 24px}.topbar{padding:0 24px}.notice{display:block}.notice strong{display:block;margin-bottom:4px}.tabs{gap:17px}.search{width:170px}.metric{padding:16px}.metric-value{font-size:23px}table{min-width:720px}}
@media(max-width:850px){.sidebar{position:static;width:100%;padding:18px 20px;display:block}.brand{display:inline-block;margin:0 0 14px;font-size:19px}.brand span:last-child{font-size:8px}.sidebar>.side-label,.side-bottom,.project-actions{display:none}.sidebar select{width:auto;max-width:200px;float:right}.sidebar nav{display:flex;overflow:auto;margin-top:8px;gap:4px}.sidebar nav button{flex-shrink:0;font-size:11px;padding:9px}.shell{margin:0}.topbar{height:40px}.project-meta{grid-template-columns:1fr 1fr}.metrics{grid-template-columns:repeat(2,1fr)}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid var(--line)}.page-heading{align-items:flex-start}h1{font-size:28px}.viewbar{display:block}.search{width:100%;margin:8px 0 0}.tabs{justify-content:space-between}.search input{min-height:38px}.diagram-strip{grid-template-columns:1fr}.source-card dl{grid-template-columns:1fr}.source-card dd{margin-bottom:10px}.stage-note{display:none}button{min-height:40px}.guide-table input,.guide-table select{min-height:40px}}
@media(max-width:480px){main{padding:22px 14px}.topbar{padding:0 14px}.page-heading{display:block}.export-wrap{margin-top:17px;display:inline-block}.notice{font-size:10px}.project-meta{gap:10px}.metrics{margin-bottom:18px}.metric{padding:14px}.metric-value{font-size:22px}.tabs{gap:16px;justify-content:flex-start}.tabs button{font-size:11px}.sidebar{padding:16px 14px}.sidebar select{max-width:145px}.work-caption h2{font-size:15px}}
@page{size:A4 landscape;margin:12mm}
@media print{body{background:white;color:#2B2B2B}.sidebar,.shell,#toast{display:none!important}#printReport{display:block;font-size:9px}#printReport h1{font-size:23px}#printReport h2{font-size:15px;break-after:avoid;margin-top:24px}#printReport table{font-size:9px;min-width:0;table-layout:fixed}#printReport th{font-size:8px}#printReport td,#printReport th{padding:6px;word-break:break-word}#printReport tr{break-inside:avoid}#printReport thead{display:table-header-group}#printReport .report-note{font-size:10px;border:1px solid #aaa;padding:10px}#printReport svg{height:180px}#printReport .report-footer{margin-top:20px;font-size:8px}}
.authority-notes{font-size:11px;color:var(--muted)}.authority-notes summary{cursor:pointer;padding:5px 0}.authority-notes p{margin:10px 0}.authority-notes label{display:block;margin:10px 0;max-width:600px}.authority-notes input{display:block;margin-top:5px}
/* Keep project creation and import reachable on narrow screens. */
@media(max-width:850px){.sidebar .project-actions{display:flex;margin:12px 0 8px;max-width:360px}.sidebar .project-actions button{min-height:40px;font-size:11px}.sidebar .side-bottom{display:block;margin:10px 0 0;padding:0}.sidebar .side-bottom p,.sidebar .side-bottom .local-dot{display:none}.sidebar .side-bottom{font-size:0}.sidebar .side-bottom button{font-size:11px;min-height:40px}.sidebar .brand{margin-bottom:0}}
/* The primary flow contains essential inputs and read-only results. */
.core-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;padding:18px}
.core-field{font-size:12px;font-weight:600;color:var(--ink)}.core-field>span{font-size:10px;font-weight:400;color:var(--muted);margin-left:5px}.core-field input,.core-field select{display:block;margin-top:7px;min-height:42px;font-size:14px;font-weight:400}
.compact-note{padding:0 18px;margin:15px 0;font-size:11px;color:var(--muted);line-height:1.7}
table.output-table{table-layout:fixed;min-width:0;width:100%}.output-table thead th:nth-child(1){width:38%}.output-table thead th:nth-child(2){width:25%}.output-table thead th:nth-child(3){width:37%}.output-table th[scope=row]{font-size:12px;font-weight:500;letter-spacing:0;text-transform:none;color:var(--ink);background:transparent;border-bottom:1px solid #D9D0BF}.output-table td:nth-child(2){text-align:right;font-size:14px;font-variant-numeric:tabular-nums;font-weight:600}.output-table .result-unit{font-size:10px;font-weight:400;color:var(--muted);white-space:nowrap}.output-table .basis-col{font-size:10px;line-height:1.6;color:var(--muted)}.output-table tbody tr:nth-child(even){background:#FAF7F0}.inline-basis{display:none}
.optional-inputs{margin:16px 18px;border:1px solid var(--line);border-radius:4px;background:#FAF7F0}.optional-inputs>summary{cursor:pointer;font-size:12px;font-weight:600;padding:12px;min-height:44px}.optional-inputs>summary>span{float:right;font-size:10px;font-weight:400;color:var(--muted)}.optional-inputs>p{font-size:11px;color:var(--muted);padding:0 14px;margin:6px 0 0;line-height:1.7}.optional-inputs .core-grid{padding:14px}.optional-inputs .stage-section{margin:14px}.optional-review{margin:0 18px 18px;font-size:12px}.stage-section>.diagram-strip{margin:18px}.reference-output{padding:0 18px 16px}.reference-output h4{font-size:12px;font-weight:600;margin:16px 0 10px}table.reference-table{table-layout:fixed;min-width:0}.reference-table th,.reference-table td{font-size:11px;width:auto;line-height:1.7;padding:10px}.reference-table th[scope=row]{font-weight:500;letter-spacing:0;color:var(--ink);text-transform:none;background:transparent}.reference-table th:first-child{width:36%}
@media(max-width:1024px){.core-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.core-grid{grid-template-columns:1fr;gap:12px;padding:14px}.core-field input,.core-field select{min-height:44px}.output-table .basis-col{display:none}.output-table thead th:nth-child(1){width:64%}.output-table thead th:nth-child(2){width:36%}.output-table th,.output-table td{padding:11px 12px}.output-table th[scope=row]{font-size:12px}.output-table td:nth-child(2){font-size:14px}.inline-basis{display:block;font-size:9px;font-weight:400;color:var(--muted);line-height:1.5;margin-top:4px}.optional-inputs{margin:14px 12px}.reference-output{padding:0 10px 12px}.reference-table th,.reference-table td{padding:8px 6px;font-size:10px}.stage-section>.diagram-strip{margin:12px}.compact-note{padding:0 14px}.core-field>span{font-size:11px}}
.compact-meta{grid-template-columns:1fr 1fr;align-items:start}.compact-meta details{font-size:11px;color:var(--muted);margin-top:16px}.compact-meta summary{cursor:pointer;padding:10px;border:1px solid var(--line);border-radius:4px;min-height:42px}.compact-meta summary span{float:right;font-size:10px}.compact-meta details>div{display:grid;gap:12px;padding:12px;background:white;border:1px solid var(--line)}@media(max-width:640px){.compact-meta{grid-template-columns:1fr;gap:0}.compact-meta details{margin-top:10px}.compact-meta details summary{min-height:44px}}
.computed-area{border:1px solid var(--line);border-radius:4px;background:var(--tint);padding:12px;align-self:end}.computed-area>span{font-size:11px;color:var(--muted)}.computed-area strong{display:block;font-size:24px;font-weight:600;font-variant-numeric:tabular-nums;margin:4px 0}.computed-area small{font-size:10px;font-weight:400;color:var(--muted)}@media(max-width:1024px){.plot-dimensions .computed-area{grid-column:1/-1}}
/* Live proportional site diagrams reuse the existing project inputs. */
.input-visual-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.9fr);align-items:start;gap:8px;padding-right:18px}.input-visual-row .core-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.input-visual-row .computed-area{grid-column:1/-1}.site-visual{margin:18px 0;border:1px solid var(--line);border-radius:6px;padding:16px;background:#FAF7F0;min-width:0;break-inside:avoid}.site-visual figcaption{font-size:13px;font-weight:600;margin-bottom:8px}.site-visual svg{display:block;width:100%;height:auto;max-height:340px;overflow:visible}.site-visual svg text{font-size:12px;fill:#2B2B2B}.visual-plot{fill:#FAF7F0;stroke:#8C7B6B}.visual-building{fill:#8C7B6B;stroke:#2B2B2B;stroke-width:1.5}.visual-road{fill:#deded6;stroke:#8C7B6B}.visual-road-centre{stroke:#fff;stroke-width:2;stroke-dasharray:12 8}.visual-dimension{stroke:#5A5750;stroke-width:1;fill:none}.visual-reference{stroke:#A97142;stroke-dasharray:5 5}.site-visual .visual-reference-label{fill:#8A5A33;font-size:11px}.visual-ground{stroke:#5A5750;stroke-width:1.5}.visual-floor{stroke:#FAF7F0;stroke-width:1}.visual-height-only{stroke:#2B2B2B;stroke-width:3}.visual-facts{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;font-size:12px;border-top:1px solid var(--line);padding-top:12px}.visual-facts span{color:var(--muted)}.visual-caption,.visual-caveat{font-size:11px;line-height:1.6;margin:9px 0 0}.visual-caveat{color:var(--muted);font-size:10px}.visual-empty{padding:60px 15px;color:var(--muted);font-size:12px;line-height:1.7}.visual-report{display:grid;grid-template-columns:1fr 1fr;gap:20px}.stage-section>.diagram-strip{grid-template-columns:1fr}
@media(max-width:1100px){.input-visual-row{grid-template-columns:1fr;padding:0}.input-visual-row .site-visual{margin:0 18px 18px}.site-visual svg{max-height:310px}}
@media(max-width:640px){.input-visual-row .core-grid{grid-template-columns:1fr}.input-visual-row .site-visual{margin:0 12px 14px;padding:12px}}
@media print{.visual-report .site-visual{margin:10px 0}.visual-report .site-visual svg{height:auto;max-height:220px}.visual-report{break-inside:avoid}}
.export-section{display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid var(--line);border-radius:6px;padding:22px;margin:28px 0;background:#FAF7F0}.export-section h2{font-size:18px;margin:0 0 8px}.export-section p{font-size:12px;color:var(--muted);margin:0;line-height:1.6}.export-section #exportMenu{bottom:calc(100% + 8px);top:auto;right:0}.visual-stilt{fill:#e4d6b6;stroke:#8A5A33;stroke-dasharray:4 3}.site-visual .visual-stilt-label{font-size:10px;fill:#8A5A33}.site-visual .visual-road-label{font-size:11px;paint-order:stroke;stroke:#deded6;stroke-width:3px;stroke-linejoin:round}@media(max-width:640px){.export-section{display:block;padding:16px}.export-section .export-wrap{margin-top:16px}.export-section #exportMenu{left:0;right:auto;max-width:calc(100vw - 65px)}}

.project-actions{flex-wrap:wrap}.sidebar #deleteProject{width:100%;color:#f3c9bf;border-color:#956c61}

/* Ostwal Architects: charcoal, bronze and cream; local font fallbacks keep exports offline. */
:root{font-family:"DM Sans",Calibri,Arial,sans-serif;--bronze:#A97142;--bronze-deep:#8A5A33;--radius:2px}.brand .brand-subtitle,.brand .brand-firm{display:block;padding-left:35px;line-height:1.5}.brand .brand-subtitle{font-size:9px;letter-spacing:2px;margin-top:5px}.brand .brand-firm{font-size:12px;letter-spacing:.8px;margin-top:7px;color:#E9D9C6}.brand-mark{color:var(--bronze)}h1,.stage-title h3,.metric-value{font-family:"Cormorant Garamond",Georgia,serif}.metric-value{color:var(--bronze-deep)}.sidebar .side-label,.sidebar .side-bottom,.sidebar .side-bottom p{color:#D9D0BF}.stage-index{color:var(--bronze-deep);border-color:#D9D0BF}.report-brand{font-size:12px;letter-spacing:2px;color:var(--bronze-deep);font-weight:700}