:root{--bg: #f4f6f8;--panel: #ffffff;--ink: #1b1f24;--ink-soft: #4a5560;--ink-faint: #8a949e;--line: #e2e7ec;--line-strong: #cdd5dd;--accent: #1f4e79;--accent-soft: #eaf1f8;--ok: #2f7d4f;--ok-bg: #eaf5ee;--caution: #b4770f;--caution-bg: #fbf1de;--risk: #b23b32;--risk-bg: #fbe9e7;--radius: 8px;--mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;--serif: "Iowan Old Style", "Palatino Linotype", Georgia, serif;--sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--sans);color:var(--ink);background:var(--bg);font-size:13px;-webkit-font-smoothing:antialiased}input,select,button{font-family:inherit;font-size:inherit;color:inherit}.app{display:flex;flex-direction:column;height:100vh}.topbar{display:flex;align-items:center;justify-content:space-between;padding:8px 16px;background:var(--panel);border-bottom:1px solid var(--line-strong);flex:0 0 auto}.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:12px;height:28px;background:var(--accent);border-radius:2px}.brand-title{font-family:var(--serif);font-size:17px;font-weight:600;letter-spacing:.2px}.brand-sub{font-size:11px;color:var(--ink-faint);margin-top:1px}.topbar-tools{display:flex;align-items:center;gap:10px}.segmented{display:inline-flex;border:1px solid var(--line-strong);border-radius:6px;overflow:hidden}.segmented button{border:none;background:var(--panel);padding:6px 12px;cursor:pointer;color:var(--ink-soft);white-space:nowrap}.segmented button+button{border-left:1px solid var(--line-strong)}.segmented button.active{background:var(--accent);color:#fff}.segmented.small button{padding:5px 10px;font-size:12px}.segmented.tiny button{padding:3px 9px;font-size:11px}.segmented.full{display:flex;width:100%}.segmented.full button{flex:1 1 0}.method-switch{display:flex;align-items:center;gap:8px}.switch-label{font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--ink-faint);font-weight:700}.method-switch .segmented button{font-weight:600}.btn.subtle.on{background:var(--accent);color:#fff;border-color:var(--accent)}.body{flex:1 1 auto;display:flex;min-height:0}.left{width:322px;flex:0 0 322px;border-right:1px solid var(--line);overflow-y:auto;overflow-x:hidden;background:var(--panel)}.right{width:360px;flex:0 0 360px;border-left:1px solid var(--line);overflow-y:auto;background:var(--panel)}.center{flex:1 1 auto;display:flex;flex-direction:column;min-width:0}.viewport{position:relative;flex:1 1 auto;min-height:0;background:#dfe6ee}.viewport canvas{display:block}.canvas-placeholder{width:100%;height:100%;background:linear-gradient(#eef2f6,#dfe6ee)}.section{border-bottom:1px solid var(--line)}.section-head{display:flex;align-items:center;justify-content:space-between;padding:0 12px}.section-toggle{background:none;border:none;padding:12px 0;cursor:pointer;font-weight:600;display:flex;align-items:center;gap:7px;color:var(--ink);letter-spacing:.2px}.chev{display:inline-block;transition:transform .15s;color:var(--ink-faint);font-size:10px}.chev.open{transform:rotate(90deg)}.section-body{padding:4px 12px 14px}.field{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:6px 0}.field-label{color:var(--ink-soft);flex:1 1 auto}.field-input{position:relative;display:inline-flex;align-items:center}.field-input input,.field-input select{width:116px;padding:5px 30px 5px 8px;border:1px solid var(--line-strong);border-radius:5px;background:#fff;text-align:right}.field-input input:focus,.field-input select:focus,.preset-select:focus{outline:2px solid var(--accent-soft);border-color:var(--accent)}.field-input .suffix{position:absolute;right:9px;color:var(--ink-faint);font-size:11px;pointer-events:none}.field-input select{text-align:left;width:122px;padding-right:8px}input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield;-webkit-appearance:textfield;appearance:textfield}.field.stacked{flex-direction:column;align-items:stretch;gap:3px;margin:0}.field.stacked .field-label{font-size:11.5px}.field.stacked .field-input,.field.stacked .field-input input{width:100%}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px 12px}.hinted{cursor:help}.hint-i{font-size:9px;color:var(--ink-faint);margin-left:3px;vertical-align:1px}.hinted:hover .hint-i{color:var(--accent)}.preset-select{width:100%;padding:7px 8px;border:1px solid var(--line-strong);border-radius:6px;background:#fff}.toggle{display:flex;align-items:center;gap:7px;cursor:pointer;color:var(--ink-soft)}.toggle.inline{color:var(--ink-soft)}.toggle input{accent-color:var(--accent)}.method-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.method-btn{padding:9px 0;border:1px solid var(--line-strong);border-radius:6px;background:#fff;cursor:pointer;font-weight:700;color:var(--ink-soft)}.method-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}.method-caption{margin-top:8px;font-size:12px;color:var(--ink-soft)}.derived-box{margin-top:12px;padding:10px;background:var(--accent-soft);border-radius:6px}.drow{display:flex;justify-content:space-between;padding:3px 0;color:var(--ink-soft);font-variant-numeric:tabular-nums}.drow.strong{color:var(--ink);font-weight:700;border-top:1px solid #d5e0ec;margin-top:3px;padding-top:6px}.derived-note{margin-top:8px;font-size:11.5px;color:var(--ink-soft)}.building-card{border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:6px;padding:8px 10px;margin:10px 0}.building-head{display:flex;align-items:center;gap:8px;margin-bottom:6px}.swatch{width:12px;height:12px;border-radius:3px;flex:0 0 auto}.swatch.sm{width:9px;height:9px;display:inline-block;margin-right:6px}.building-name{flex:1 1 auto;border:none;border-bottom:1px dashed var(--line-strong);background:none;font-weight:600;padding:2px 0}.building-name:focus{outline:none;border-bottom-color:var(--accent)}.building-foot{display:flex;justify-content:space-between;align-items:center;margin-top:8px}.mini{color:var(--ink-faint);font-size:11px;font-variant-numeric:tabular-nums}.btn{border:1px solid var(--line-strong);background:#fff;border-radius:6px;padding:6px 11px;cursor:pointer;color:var(--ink-soft)}.btn:hover{border-color:var(--accent);color:var(--accent)}.btn.subtle{background:var(--panel)}.btn.full{width:100%;margin-top:8px}.btn.tiny{padding:3px 8px;font-size:12px}.btn.danger{color:var(--risk);border-color:transparent;font-size:15px;line-height:1;padding:0 6px}.btn.danger:hover{border-color:var(--risk)}.legend{position:absolute;bottom:14px;left:14px;background:#fffffff0;border:1px solid var(--line-strong);border-radius:8px;padding:10px 12px;display:flex;gap:18px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);box-shadow:0 2px 12px #0000001a;z-index:5}.legend-close{position:absolute;top:4px;right:6px;border:none;background:none;cursor:pointer;color:var(--ink-faint);font-size:15px;line-height:1}.legend-close:hover{color:var(--ink)}.legend-title{font-weight:700;font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--ink-faint);margin-bottom:6px}.legend-row{display:flex;align-items:center;gap:7px;margin:4px 0;font-size:11px;color:var(--ink-soft)}.legend-swatch{width:11px;height:11px;border-radius:3px;flex:0 0 auto}.legal-rail{padding:4px 0 24px}.rail-section{padding:14px 16px;border-bottom:1px solid var(--line)}.rail-section h3{margin:0 0 10px;font-family:var(--serif);font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px}.count{background:var(--accent);color:#fff;border-radius:10px;padding:1px 8px;font-size:11px;font-family:var(--sans)}.explain{margin:0 0 6px;line-height:1.55;color:var(--ink-soft)}.cite{margin:0;font-size:11.5px;color:var(--ink-faint);font-style:italic}.method-full{margin:8px 0 0;font-size:12px;color:var(--accent);font-weight:600}.risk-badge{padding:8px 10px;border-radius:6px;margin-bottom:10px}.risk-badge.sev-ok{background:var(--ok-bg);color:var(--ok)}.risk-badge.sev-caution{background:var(--caution-bg);color:var(--caution)}.risk-badge.sev-risk{background:var(--risk-bg);color:var(--risk)}.dv-grid>div{display:flex;justify-content:space-between;padding:5px 0;border-bottom:1px dotted var(--line);color:var(--ink-soft)}.dv-grid>div b{color:var(--ink);font-variant-numeric:tabular-nums}.dv-grid b.yes{color:var(--ok)}.dv-grid b.no{color:var(--risk)}.dv-warn{display:block!important;background:var(--risk-bg);color:var(--risk);border:none!important;border-radius:6px;padding:8px 10px!important;line-height:1.45}.flag-list{display:flex;flex-direction:column;gap:8px}.flag{border:1px solid var(--line);border-left-width:4px;border-radius:6px;padding:9px 11px}.flag.sev-ok{border-left-color:var(--ok);background:#fbfdfb}.flag.sev-caution{border-left-color:var(--caution);background:#fffdf7}.flag.sev-risk{border-left-color:var(--risk);background:#fffbfa}.flag-head{display:flex;align-items:baseline;gap:8px}.flag-icon{font-weight:700}.sev-ok .flag-icon{color:var(--ok)}.sev-caution .flag-icon{color:var(--caution)}.sev-risk .flag-icon{color:var(--risk)}.flag-title{font-weight:600}.flag-detail{margin:5px 0 4px;color:var(--ink-soft);line-height:1.5}.flag-cite{font-size:11px;color:var(--ink-faint);font-style:italic}.assumptions.seeded{background:#fffdf6}.seeded-tag{display:inline-block;background:var(--caution-bg);color:var(--caution);font-weight:700;font-size:10.5px;letter-spacing:.4px;padding:3px 8px;border-radius:4px;margin-bottom:8px}.results{flex:0 0 auto;max-height:320px;display:flex;flex-direction:column;border-top:1px solid var(--line-strong);background:var(--panel)}.results-bar{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;border-bottom:1px solid var(--line)}.results-bar h4{margin:0;font-family:var(--serif);font-size:14px;font-weight:600}.results-actions{display:flex;gap:6px}.table-scroll{overflow:auto}table{border-collapse:collapse;width:100%;font-variant-numeric:tabular-nums}th,td{padding:6px 12px;text-align:right;border-bottom:1px solid var(--line);white-space:nowrap}th{position:sticky;top:0;background:#f7f9fb;color:var(--ink-soft);font-weight:600;z-index:1}th.left,td.left{text-align:left}th.sel,td.sel{background:var(--accent-soft)}td.warn{color:var(--risk);font-weight:600}td.cool{color:var(--accent)}.residual-row td{border-top:2px solid var(--line-strong);font-weight:600}td.dim{color:var(--ink-faint);font-weight:400;font-style:italic}.table-foot{padding:6px 14px;font-size:11px;color:var(--ink-faint);border-top:1px solid var(--line)}.plan2d,.compare{position:absolute;top:0;right:0;bottom:0;left:0;background:#eef2f6;display:flex;flex-direction:column}.plan-scroll{flex:1 1 auto;overflow:auto;padding:16px}.plan-svg{background:#fff;box-shadow:0 2px 12px #00000014}.plan-label{font:600 13px var(--sans);fill:#fff}.plan-sub{font:500 12px var(--sans);fill:#f0f0f0}.plan-scalebar{font:500 12px var(--sans);fill:#1b1b1b}.compare{flex-direction:row;padding:12px;gap:12px}.compare-cell{flex:1 1 0;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line-strong);border-radius:8px;overflow:hidden}.compare-head{display:flex;justify-content:space-between;align-items:baseline;padding:8px 12px;border-bottom:1px solid var(--line)}.compare-head span{font-size:11px;color:var(--ink-faint)}.compare-canvas{flex:1 1 auto;min-height:0}.compare-foot{padding:7px 12px;font-size:11.5px;color:var(--ink-soft);border-top:1px solid var(--line);font-variant-numeric:tabular-nums}.field-note{font-size:11px;color:var(--ink-faint);line-height:1.4;margin-top:4px}.pad-top{margin-top:10px;padding-top:10px;border-top:1px solid var(--line)}.seeded-inline{margin-top:8px;font-size:11px;color:var(--caution);background:var(--caution-bg);padding:5px 8px;border-radius:5px}.tdr-control{display:flex;flex-direction:column;gap:8px}.tdr-hint{font-size:11.5px;color:var(--ink-soft);line-height:1.4}.tdr-picker{display:flex;flex-direction:column;gap:4px;margin-top:2px}.tdr-pick{display:flex;align-items:center;gap:7px;padding:4px 6px;border:1px solid var(--line);border-radius:5px;cursor:pointer}.tdr-pick.on{border-color:var(--accent);background:var(--accent-soft)}.tdr-pick input{accent-color:var(--accent)}.tdr-pick-name{flex:1 1 auto}.tdr-pick-val{color:var(--ink-faint);font-variant-numeric:tabular-nums;font-size:11.5px}.tdr-warn{font-size:11px;color:var(--caution)}.results-strip{flex:0 0 auto;display:flex;gap:8px;padding:9px 14px;background:var(--panel);border-top:1px solid var(--line-strong);overflow-x:auto}.chip{display:flex;align-items:center;gap:7px;padding:5px 11px;border:1px solid var(--line);border-radius:20px;white-space:nowrap;flex:0 0 auto}.chip.residual{border-color:#e7c48f;background:#fdf6ea}.chip.warn{border-color:#e6b3ac;background:#fbece9}.chip-dot{width:10px;height:10px;border-radius:50%;flex:0 0 auto}.chip-name{font-weight:600}.chip-val{color:var(--ink);font-variant-numeric:tabular-nums}.chip-pct{color:var(--ink-faint);font-variant-numeric:tabular-nums;font-size:11.5px}.reset-fab{position:absolute;top:12px;right:12px;width:34px;height:34px;border-radius:8px;border:1px solid var(--line-strong);background:#ffffffeb;cursor:pointer;font-size:16px;color:var(--ink-soft);box-shadow:0 2px 8px #00000014;z-index:5}.reset-fab:hover{color:var(--accent);border-color:var(--accent)}.rail-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line-strong);position:sticky;top:0;background:var(--panel);z-index:1}.rail-head h3{margin:0;font-family:var(--serif);font-size:15px}.failure-studio{position:absolute;top:0;right:0;bottom:0;left:0;overflow:auto;background:#eef2f6;padding:14px}.fail-banner{border-radius:8px;padding:12px 16px;margin-bottom:14px;border:1px solid var(--line-strong);background:#fff}.fail-banner.bad{border-left:5px solid var(--risk);background:#fffaf9}.fail-banner.good{border-left:5px solid var(--ok);background:#fbfdfb}.fail-banner-main{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}.fail-class{font-family:var(--serif);font-size:16px;font-weight:700;text-transform:capitalize}.fail-banner.bad .fail-class{color:var(--risk)}.fail-banner.good .fail-class{color:var(--ok)}.fail-caption{color:var(--ink-soft);line-height:1.5}.fail-note{margin-top:8px;font-size:12px;color:var(--caution);background:var(--caution-bg);padding:6px 10px;border-radius:5px}.fail-note.amber{color:var(--caution)}.failure-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.fail-card{background:#fff;border:1px solid var(--line-strong);border-radius:8px;padding:12px 14px}.fail-card.wide{grid-column:1 / -1}.fail-card h4{margin:0 0 10px;font-family:var(--serif);font-size:14px;font-weight:600}.fail-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.fail-card-head h4{margin:0}.fail-empty{color:var(--ink-soft);font-style:italic}.fail-cite{margin:8px 0 0;font-size:11px;color:var(--ink-faint);font-style:italic}.breach-svg{width:100%;max-height:260px;background:#fff;border:1px solid var(--line);border-radius:6px}.breach-name{font:600 13px var(--sans);fill:#1b1b1b}.breach-sub{font:500 11px var(--sans)}.breach-sub.green{fill:#1b6b3f}.breach-sub.red{fill:var(--risk)}.gauges{display:flex;flex-direction:column;gap:10px}.gauge-label{display:flex;justify-content:space-between;font-size:12px;color:var(--ink-soft);margin-bottom:3px}.gauge-num{font-variant-numeric:tabular-nums}.gauge.bad .gauge-label{color:var(--risk);font-weight:600}.gauge-track{position:relative;height:16px;background:#eef1f4;border-radius:4px;overflow:visible;display:flex}.gauge-fill{height:100%}.gauge-fill.base{background:var(--accent);border-radius:4px 0 0 4px}.gauge-fill.deficit{background:repeating-linear-gradient(45deg,var(--risk),var(--risk) 4px,#d9564c 4px,#d9564c 8px)}.gauge-floor{position:absolute;top:-3px;bottom:-3px;width:2px;background:#1b1b1b}.phase-svg{width:100%;background:#fff;border:1px solid var(--line);border-radius:6px}.sweep{margin-top:4px}.sweep-controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}.sweep-controls label{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--ink-soft)}.sweep-controls select{padding:4px 6px;border:1px solid var(--line-strong);border-radius:5px}.sweep-controls input[type=range]{flex:1 1 120px;accent-color:var(--accent)}.segmented.small button{padding:4px 9px;font-size:12px}.sweep-svg{background:#fff;border:1px solid var(--line);border-radius:6px}.sweep-lbl{font:500 10.5px var(--sans);fill:#4a5560}.sweep-lbl.red{fill:var(--risk)}.sweep-lbl.blue{fill:var(--accent)}.sweep-lbl.amber{fill:var(--caution)}.sweep-lbl.dim{fill:var(--ink-faint)}.sweep-readout{margin-top:8px;padding:8px 10px;border-radius:6px;font-size:12px;line-height:1.45}.sweep-readout.ok{background:var(--ok-bg);color:#1c5a37}.sweep-readout.fail{background:var(--risk-bg);color:#8f2b23}.danger-text{color:var(--risk);font-weight:600}.compare-verdict{margin-top:3px;font-size:11px;color:var(--ink-faint)}.segmented button.flag-dot.active{background:var(--risk);border-color:var(--risk)}@media (max-width: 1180px){.failure-grid{grid-template-columns:1fr}}@media print{.topbar,.left,.right,.results,.results-bar{display:none!important}.body,.center,.viewport{display:block!important;height:auto!important;overflow:visible!important}.plan2d{position:static}}