:root{font:14px/1.5 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial;color:#272b32;background:#fafafa;--teal:#2d68ce;--line:#dee6e9}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.45;cursor:default}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #76a0ea;outline-offset:2px}[hidden]{display:none!important}header{height:62px;background:#202329;color:white;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1320px)/2));gap:16px}.logo{color:white;text-decoration:none;font-size:21px;font-weight:750;letter-spacing:-.6px}.logo span{font-size:14px;font-weight:400;color:#b7ccd4;letter-spacing:0}header button.quiet{color:#d9e8ec;border-color:#49616a}main{max-width:1368px;margin:auto;padding:26px 24px 70px}.intro{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:24px}.eyebrow{font-size:10px;letter-spacing:1.7px;color:var(--teal);font-weight:800}h1{font-size:28px;letter-spacing:-.8px;line-height:1.2;margin:7px 0}p{margin:8px 0;color:#647b86}.layout{display:grid;grid-template-columns:310px 1fr;gap:22px;align-items:start}.panel{background:white;border:1px solid var(--line);border-radius:12px;padding:20px;box-shadow:0 3px 12px #00000004}aside.panel{position:sticky;top:18px}label{display:block;font-size:12px;font-weight:650;margin:0 0 13px;color:#58616c}input:not([type=checkbox]):not([type=radio]),select{display:block;width:100%;border:1px solid #cbd8dd;border-radius:7px;background:#fff;color:#272b32;padding:8px 9px;margin-top:5px;font-size:13px;height:37px;min-width:0}input:focus,select:focus{outline:2px solid #76a0ea;outline-offset:1px}.two{display:grid;grid-template-columns:1fr 1fr;gap:10px}.two label{min-width:0}fieldset{border:0;margin:0 0 13px;padding:0}legend{font-size:12px;font-weight:650;color:#58616c;margin-bottom:7px}small{font-size:11px;color:#68717f;font-weight:400}.chips{display:flex;gap:6px;flex-wrap:wrap}.chips label{margin:0;position:relative;font-size:11px}.chips input{position:absolute;opacity:0}.chips span{display:block;padding:6px 9px;border:1px solid #ccd9df;border-radius:7px;color:#55707b;font-weight:550;cursor:pointer}.chips input:checked+span{border-color:var(--teal);background:#eef3fd;color:#2857a0}.chips input:focus-visible+span{outline:2px solid #76a0ea;outline-offset:2px}.options{margin:0 0 15px;border-top:1px solid var(--line);padding-top:9px}.options summary{font-size:12px;cursor:pointer;color:#58616c;margin-bottom:8px}.primary,.secondary,.quiet{border:1px solid #cbd9dd;border-radius:7px;padding:8px 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8px;color:#536b76}.model-card{border:1px solid var(--line);border-radius:9px;padding:12px;margin:0 0 8px}.model-card.selected{border-color:var(--teal);background:#f4f7fd}.card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}.model{font-size:14px;font-weight:700;color:#1d3843;overflow-wrap:anywhere}.brand{font-size:10px;color:#81949b;margin-top:3px}.delta{font-size:10px;white-space:nowrap;background:#eff4fd;padding:2px 5px;border-radius:4px;color:#26806a}.delta.negative{background:#fff1dd;color:#9b622c}.metrics{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;margin:10px 0;color:#304f5c}.metrics small{display:block;font-size:9px}.select-model{display:flex;align-items:center;gap:7px;margin:7px 0 0;color:#2d68ce;font-size:12px;cursor:pointer}.select-model input{accent-color:var(--teal);width:15px;height:15px}.empty{border:1px dashed #c8d6dc;border-radius:8px;padding:16px;font-size:12px;line-height:1.6;color:#68808a}.hint{font-size:12px;background:#edf7f4;border-radius:7px;padding:10px;margin:10px 0 14px;color:#176d60}.hint button{margin-top:6px}.alert,#error{color:#975523;background:#fff4e5;padding:10px;border-radius:7px;font-size:12px;margin-bottom:9px}.gen-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.gen-grid .model-card{margin:0}.details-data{font-size:11px;margin-top:8px;display:grid;grid-template-columns:1fr 1fr;gap:5px}.details-data span{color:#6b828d}.chosen-generator{background:#ecf6f2;padding:11px 13px;border-radius:7px;font-size:12px;margin-bottom:13px}.assembly-block+.assembly-block{border-top:1px solid var(--line);margin-top:16px;padding-top:16px}.assembly-header{display:flex;justify-content:space-between;gap:10px;margin-bottom:10px}.assembly-header strong{font-size:14px}.summary-stats{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:12px}.summary-stats span{font-size:11px;background:#fafafa;padding:4px 7px;border-radius:5px}details.equipment summary{font-size:12px;font-weight:650;color:#456974;cursor:pointer}.equipment-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 12px;margin-top:12px}.equipment-grid select{font-size:11px}.equipment-note{font-size:10px;line-height:1.5;display:block;margin-top:4px;color:#7e949d}.actions{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0}.exports label{max-width:480px}.exports small{display:block;margin-top:10px}.exports p{font-size:12px}.comparison{overflow-x:auto;margin:15px 0}table{border-collapse:collapse;width:100%;font-size:12px}th,td{padding:8px;text-align:left;border-bottom:1px solid var(--line)}th{background:#f5f8f9;font-size:11px;font-weight:600}td{min-width:110px}.saved-item{display:flex;gap:10px;align-items:center;border-bottom:1px solid var(--line);padding:12px 0}.saved-item div{flex:1}.saved-item small{display:block}dialog{border:1px solid var(--line);border-radius:12px;padding:24px;max-width:660px;width:calc(100% - 32px);color:#272b32}dialog::backdrop{background:#20232990}.dialog-title{display:flex;justify-content:space-between;align-items:center;gap:15px}.dialog-title h2{font-size:20px}dialog p{font-size:13px}#gas-converted{display:block;margin:-8px 0 12px}#export-status:empty{display:none}#candidates details summary{font-size:11px;color:#527e88;cursor:pointer;margin:8px 0}.note{font-size:11px;color:#6e8994}button:disabled:hover{background:initial}
@media(max-width:1000px){.layout{grid-template-columns:280px 1fr;gap:15px}.panel{padding:16px}.groups{grid-template-columns:1fr}.gen-grid{grid-template-columns:1fr}.equipment-grid{grid-template-columns:1fr}}@media(max-width:700px){header{padding:0 16px;height:56px}.logo{font-size:19px}.logo span{font-size:11px}main{padding:20px 14px 40px}.intro{margin-bottom:17px;align-items:flex-start}.intro p{font-size:12px}h1{font-size:24px}.layout{display:block}aside.panel{position:static;margin-bottom:16px}.content{gap:14px}.groups{grid-template-columns:1fr}.gen-grid{grid-template-columns:1fr}.equipment-grid{grid-template-columns:1fr 1fr}.actions button{flex:1}.intro button{padding:6px 8px}.metrics{gap:16px}}@media(max-width:400px){.equipment-grid{grid-template-columns:1fr}.logo span{display:none}.details-data{grid-template-columns:1fr}}

.actions a{display:inline-block;text-decoration:none;cursor:pointer}.actions a:hover{filter:brightness(.94)}
.part-number{font-size:11px;color:#496670;margin:5px 0 9px;overflow-wrap:anywhere}.part-number b{font-variant-numeric:tabular-nums}.technical-sheet{margin:10px 0;border:1px solid var(--line);border-radius:7px;background:white}.technical-sheet summary{cursor:pointer;padding:9px 10px;font-size:11px;font-weight:650;color:#355e68;overflow-wrap:anywhere}.datasheet-layout{display:grid;grid-template-columns:minmax(90px,25%) 1fr;gap:12px;padding:8px 10px 12px}.datasheet-layout figure{margin:0}.datasheet-layout img{display:block;width:100%;height:100px;object-fit:contain}.datasheet-layout figcaption{font-size:9px;line-height:1.4;color:#81949b;margin-top:6px}.datasheet-layout dl{margin:0;font-size:11px;min-width:0}.datasheet-layout dl>div{display:grid;grid-template-columns:minmax(90px,45%) 1fr;gap:8px;padding:6px 0;border-bottom:1px solid #edf1f2}.datasheet-layout dt{color:#6b818b}.datasheet-layout dd{margin:0;color:#203f4b;overflow-wrap:anywhere}.selected-datasheets{margin-top:10px}.installation-schemes{border-top:1px solid var(--line);margin-top:20px;padding-top:15px}.installation-schemes h3{font-size:15px;margin:0 0 8px}.scheme h4{font-size:12px;margin:14px 0 10px;overflow-wrap:anywhere}.process-line{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px 18px}.process-line li{position:relative;border:1px solid #cbdedc;background:#f7fbfa;border-radius:8px;padding:9px;min-width:0;font-size:10px}.process-line li:not(:last-child):after{content:'→';position:absolute;right:-16px;top:72px;color:#2d68ce;font-size:16px}.process-line li:nth-child(4n):not(:last-child):after{content:'↳';right:3px;top:auto;bottom:-20px}.process-title{display:flex;gap:5px;align-items:flex-start;font-size:10px;font-weight:650;min-height:30px}.process-title span{border-radius:50%;background:#2d68ce;color:white;min-width:16px;height:16px;display:grid;place-items:center;font-size:9px}.process-line img{display:block;width:100%;height:70px;object-fit:contain;background:white;border-radius:4px;margin:7px 0}.process-line small{font-size:9px;display:block;overflow-wrap:anywhere}.process-line b{display:block;font-size:11px;line-height:1.4;margin-top:3px;overflow-wrap:anywhere}.process-ccn{font-size:9px;color:#456670;margin-top:5px;overflow-wrap:anywhere}.scheme+.scheme{border-top:1px solid var(--line);margin-top:20px;padding-top:6px}
@media(max-width:1000px){.process-line{grid-template-columns:repeat(2,minmax(0,1fr))}.process-line li:nth-child(4n):not(:last-child):after{content:'→';right:-16px;top:72px;bottom:auto}.process-line li:nth-child(2n):not(:last-child):after{content:'↳';right:3px;top:auto;bottom:-20px}.datasheet-layout{grid-template-columns:1fr}.datasheet-layout figure{display:flex;align-items:center;gap:12px}.datasheet-layout figure img{width:100px}.datasheet-layout figcaption{max-width:160px}}
@media(max-width:500px){.process-line{grid-template-columns:1fr;gap:24px}.process-line li{display:grid;grid-template-columns:80px 1fr;gap:0 10px}.process-title{grid-column:1/-1;min-height:0}.process-line img{grid-column:1;grid-row:2/6;align-self:center}.process-line small,.process-line b,.process-ccn{grid-column:2}.process-line small{margin-top:9px}.process-line li:not(:last-child):after,.process-line li:nth-child(2n):not(:last-child):after,.process-line li:nth-child(4n):not(:last-child):after{content:'↓';right:50%;top:auto;bottom:-24px}.datasheet-layout dl>div{grid-template-columns:minmax(100px,45%) 1fr}}

/* DAUCORE platform */
:root{--teal:#2d68ce;--line:#e3e5e8;color:#272b32;background:#fafafa}small{color:#66717e}button:disabled:hover{background:revert-layer}.platform-header{height:auto;max-width:1320px;margin:22px auto 0;padding:0 24px;background:#f5f5f6;border:1px solid #f1f1f2;border-radius:20px;display:block;color:#25272b}.brand-row{position:relative;text-align:center;padding:23px 0 21px}.platform-logo{display:inline-block;color:#222426;text-decoration:none;font-size:36px;font-weight:750;letter-spacing:-1.4px;line-height:1.2}.platform-logo span{color:#2d68ce}.brand-row>p{font-size:11px;letter-spacing:.45px;color:#65686d;margin:7px 0 0}.saved-shortcut{position:absolute;right:0;top:33px;max-width:170px}header .saved-shortcut.quiet{color:#626a76;border-color:#d8dce2;font-size:11px;padding:6px 10px}.saved-shortcut span{display:inline-block;min-width:18px;padding:0 4px;margin-left:4px;background:#e7ebf2;border-radius:4px;color:#344b75}.platform-tabs{border-top:1px solid #e0e1e4;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));max-width:860px;margin:auto}.platform-tabs button{display:flex;flex-direction:column;align-items:center;gap:5px;border:0;border-bottom:3px solid transparent;border-radius:0;background:transparent;color:#61656d;font-size:12px;font-weight:550;padding:17px 10px 14px}.platform-tabs svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.platform-tabs button:hover{color:#2d68ce;background:#edf1f8}.platform-tabs [aria-selected=true]{color:#2d68ce;border-bottom-color:#2d68ce;background:linear-gradient(0deg,#eaf0fc80,transparent)}#platform-main{max-width:1368px;padding-top:32px}h1{color:#252a32}.intro p{color:#6c747e}.eyebrow{color:#3266bd}.panel{border-color:#e3e5e8;box-shadow:0 3px 12px #00000003}.primary{background:#2d68ce;border-color:#2d68ce}.primary:hover{background:#2255ad}.secondary{background:#eef3fc;color:#2c5da8;border-color:#cddaf2}.quiet{color:#5b6675;border-color:#d8dde5}.quiet:hover{background:#f0f2f6}.chips input:checked+span{border-color:#2d68ce;color:#2857a0;background:#edf3ff}.chips input{accent-color:#2d68ce}.model-card.selected{border-color:#7c9ed9;background:#f5f8fd}.select-model input{accent-color:#2d68ce}.step-label b{background:#ecf1fc;color:#2d68ce}.step-label{color:#343d4a}.card-head .model{color:#29333f}p,.help,.note{color:#687381}.model-card{border-color:#e1e6ed}.brand{color:#667382}.summary-stats span{background:#f2f4f7}.hint,.chosen-generator{background:#f0f5ff;color:#375c91}.process-line li{background:#f7f9fd;border-color:#d4dfef}.process-title span{background:#2d68ce}.process-line li:not(:last-child):after{color:#2d68ce}.technical-sheet summary{color:#3c577c}.technical-sheet{border-color:#e0e5ec}.datasheet-layout dd{color:#2b3645}.datasheet-layout dt{color:#697482}.exports .actions{margin-top:14px}.tools-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:22px;align-items:start}.tools-menu{position:sticky;top:20px;padding:17px}.tools-menu>.eyebrow{display:block;margin:0 0 13px;font-size:9px}.tools-content{min-width:0;display:grid;gap:22px}.engineering-tool-tab{display:flex;align-items:center;gap:9px;width:100%;padding:12px 10px;text-align:left;background:#edf3ff;border:1px solid #cad9f5;border-radius:9px;color:#2a59a7}.engineering-tool-tab b{display:block;font-size:12px;line-height:1.5}.engineering-tool-tab small{display:block;color:#677d9e;font-size:10px}.tool-mark{font-size:20px}.tools-menu .note{font-size:10px;line-height:1.7;margin:15px 0 0}.calculator{padding:25px}.tool-title{display:flex;justify-content:space-between;gap:15px;align-items:center}.tool-title h2{font-size:20px;letter-spacing:-.4px;margin:5px 0 0}.tool-title .eyebrow{font-size:9px;letter-spacing:1.3px}.mode-badge{font-size:10px;font-weight:650;background:#edf2fc;color:#315b9d;border:1px solid #d9e2f4;border-radius:6px;padding:4px 9px}.tool-description{font-size:12px;line-height:1.7;margin:14px 0 24px;max-width:700px}.calculator-form{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(250px,1fr);gap:28px;align-items:start}.calc-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 12px}.full-width{grid-column:1/-1}.calc-outcome{min-width:0}.ambient-flow-row{display:grid;grid-template-columns:minmax(0,1fr) 100px;gap:7px}.field-help,.field-error{display:block;margin-top:5px;font-size:10px;font-weight:400}.field-help{color:#6d7580}.field-error{color:#ab4431}.field-error:empty{display:none}[aria-invalid=true]{border-color:#b85d49!important;background:#fff9f6!important}.ambient-actions{display:flex;gap:8px;margin:6px 0}.ambient-actions button{flex:1}.ambient-empty{padding:20px;border:1px dashed #d1d9e5;border-radius:10px;font-size:12px;line-height:1.8;color:#737f90;background:#fafbfd}.ambient-result{background:#f0f5ff;border:1px solid #d4e1f7;border-radius:10px;padding:21px}.result-caption{display:block;font-size:11px;color:#566e90;line-height:1.6;margin:0}.ambient-result-number{font-size:14px;color:#285eb8;margin-top:5px;overflow-wrap:anywhere}.ambient-result-number strong{font-size:36px;line-height:1.35;font-variant-numeric:tabular-nums;letter-spacing:-1px}.ambient-equivalent{font-size:12px;color:#657e9e;margin-top:3px}.ambient-factor{border-top:1px solid #dae4f4;padding-top:13px;margin-top:17px;font-size:11px;color:#627da3}#ambient-use{width:100%;margin:13px 0 20px}.project-label{padding-top:15px;border-top:1px solid var(--line);margin-top:12px}.project-label input{font-size:12px}.tool-status{font-size:12px;line-height:1.7;overflow-wrap:anywhere}.tool-status:empty{display:none}.ambient-method{border-top:1px solid var(--line);padding-top:14px;margin-top:23px}.ambient-method summary{font-size:11px;cursor:pointer;color:#647287}.ambient-method p{font-size:11px;line-height:1.75}.ambient-method .formula{font-size:11px;background:#f5f7fb;padding:12px;border-radius:7px;color:#3c557a}.saved-section{margin-top:0}.section-heading{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:18px}.section-heading h2{font-size:17px;margin:0;color:#313a49}.section-heading>span{font-size:10px;color:#7b8492}.saved-project{display:flex;justify-content:space-between;align-items:center;gap:14px;border-top:1px solid var(--line);padding:17px 0}.saved-project:first-child{border-top:0}.saved-project>div:first-child{min-width:0}.saved-project b{display:block;font-size:13px;overflow-wrap:anywhere}.saved-project small{display:block;margin-top:3px;font-size:10px}.saved-project p{font-size:11px;margin:6px 0 0}.saved-project .actions{flex-shrink:0}.tco-layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:22px;align-items:start}.tco-summary{position:sticky;top:20px}.tco-inputs,.tco-summary{padding:25px}.tco-inputs>label{max-width:240px}.cost-section{border-top:1px solid var(--line);padding:18px 0 0;margin-top:18px}.cost-toggle{display:flex;align-items:flex-start;gap:10px;cursor:pointer}.cost-toggle input{accent-color:#2d68ce;width:16px;height:16px;margin:3px 0 0;flex-shrink:0}.cost-toggle b{font-size:13px;font-weight:650;color:#39465a}.cost-toggle small{display:block;margin-top:3px;font-size:11px;font-weight:400}.cost-section fieldset{padding:13px 0 0 26px;margin:0}.tco-total{display:block;font-size:31px;color:#2b5fb4;letter-spacing:-.6px;line-height:1.5;overflow-wrap:anywhere;margin-top:9px;font-variant-numeric:tabular-nums}.tco-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px;padding:18px 0;border-bottom:1px solid var(--line);margin:12px 0}.tco-metrics small{display:block;font-size:10px}.tco-metrics b{display:block;font-size:13px;margin-top:4px;overflow-wrap:anywhere}.tco-table{font-size:12px}.tco-table th{background:none;font-weight:500;max-width:300px}.tco-table th small{display:block;font-size:9px;font-weight:400;margin-top:4px}.tco-table td{text-align:right;white-space:nowrap;min-width:0;font-variant-numeric:tabular-nums}.tco-excluded{font-size:11px;line-height:1.7;background:#f5f7fb;padding:11px;border-radius:7px;margin:13px 0}#workspace-optimize>.saved-section{margin-top:22px}.platform-footer{font-size:10px;color:#89909a;text-align:center;margin:0 15px 30px}#flow-source{display:block;margin-top:5px;font-size:10px;line-height:1.5;color:#2d68ce;font-weight:400}.actions a{overflow-wrap:anywhere}button:disabled{cursor:not-allowed}
@media(max-width:1400px){.platform-header{margin-left:24px;margin-right:24px}}
@media(max-width:1100px){.tools-layout{grid-template-columns:190px minmax(0,1fr);gap:16px}.calculator-form{grid-template-columns:1fr;gap:20px}.calc-outcome{border-top:1px solid var(--line);padding-top:20px}.calc-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.tco-layout{grid-template-columns:1fr 1fr}.tco-summary,.tco-inputs{padding:20px}}
@media(max-width:750px){.platform-header{margin:12px 14px 0;padding:0 16px;border-radius:15px}.brand-row{padding:21px 0 17px}.platform-logo{font-size:32px}.brand-row>p{font-size:9px;letter-spacing:.3px}.saved-shortcut{position:static;margin-top:13px;max-width:none}header .saved-shortcut.quiet{font-size:10px;padding:4px 8px}.platform-tabs button{font-size:11px;padding:13px 6px 11px}.platform-tabs svg{width:18px;height:18px}#platform-main{padding-top:23px}.intro h1{font-size:25px}.tools-layout{display:block}.tools-menu{position:static;margin-bottom:16px;padding:14px}.tools-menu>.eyebrow,.tools-menu>.note{display:none}.tools-content{gap:16px}.calculator{padding:18px}.tool-title{align-items:flex-start;gap:8px}.tool-title h2{font-size:18px}.tool-description{font-size:11px;margin:12px 0 19px}.calculator-form{gap:14px}.calc-outcome{padding-top:17px}.tco-layout{grid-template-columns:1fr;gap:16px}.tco-summary{position:static}.tco-inputs,.tco-summary{padding:18px}.section-heading{margin-bottom:14px}.saved-project{display:block}.saved-project>.actions{margin-top:12px}.tco-total{font-size:28px}.cost-section fieldset{padding-left:0}.saved-section{padding:18px}.platform-footer{margin-bottom:25px}}
@media(max-width:370px){.calc-fields{grid-template-columns:1fr}.full-width{grid-column:auto}.tool-title{display:block}.mode-badge{display:inline-block;margin-top:9px}.tco-metrics{grid-template-columns:1fr;gap:10px}.tco-table td{white-space:normal}.intro{gap:8px}.intro button{font-size:10px}}

/* Air receiver calculator */
.nitrogen-calculator-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(310px,.9fr);gap:28px;align-items:start}.nitrogen-inputs{min-width:0}.nitrogen-fieldset{border:1px solid var(--line);border-radius:12px;padding:17px;margin:0 0 16px}.nitrogen-fieldset legend{padding:0 8px;font-size:12px;font-weight:700;color:#39465a}.nitrogen-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-bottom:13px}.nitrogen-summary>div{padding:12px;border-radius:9px;background:#f5f7fb;border:1px solid #e4e8ef}.nitrogen-summary small,.nitrogen-summary b{display:block}.nitrogen-summary small{font-size:9px;line-height:1.45;color:#6c7889}.nitrogen-summary b{font-size:13px;margin-top:4px;color:#34445d}.nitrogen-model-card{padding:16px;border-radius:11px;border:1px solid #dbe3f0;margin-top:11px}.nitrogen-model-card>span,.nitrogen-model-card>strong,.nitrogen-model-card>small{display:block}.nitrogen-model-card>span{font-size:9px;text-transform:uppercase;letter-spacing:.6px;color:#66758a}.nitrogen-model-card>strong{font-size:24px;color:#2d5fae;margin:6px 0 2px}.nitrogen-model-card>small{font-size:11px}.nitrogen-model-card.minimum{background:#f7f9fc}.nitrogen-model-card.recommended{background:#edf4ff;border-color:#bcd0ef}.nitrogen-model-card.recommended>strong{color:#174f9e}.nitrogen-model-card p{font-size:10px;line-height:1.6;margin:10px 0 0}.nitrogen-buffer{margin:14px 0;padding:15px;border:1px solid var(--line);border-radius:11px}.nitrogen-buffer h3{font-size:12px;margin:0 0 9px}.nitrogen-buffer>div{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-top:1px solid #eceef2;font-size:10px}.nitrogen-buffer>div:first-of-type{border-top:0}.nitrogen-buffer b{text-align:right;color:#34445d}#nitrogen-cylinder-use{width:100%}
.gas-scenario-tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:-8px 0 20px}.gas-scenario-tabs button{padding:10px 12px;border:1px solid #d7deea;background:#f7f8fb;color:#596777;border-radius:9px;font-size:11px}.gas-scenario-tabs button[aria-pressed=true]{border-color:#8daee2;background:#eaf2ff;color:#24569e;font-weight:700}.gas-duration-input{display:grid;grid-template-columns:minmax(0,1fr) 112px;gap:7px;margin-top:6px}.gas-duration-input input,.gas-duration-input select{margin:0}.receiver-combinations{margin:14px 0;padding:15px;border:1px solid var(--line);border-radius:11px}.receiver-combinations h3{font-size:12px;margin:0 0 9px}.receiver-combinations>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}.receiver-combinations>div>div{padding:9px;border-radius:8px;background:#f5f7fb;border:1px solid #e5e9ef}.receiver-combinations b,.receiver-combinations span{display:block}.receiver-combinations b{font-size:11px;color:#34445d}.receiver-combinations span{font-size:9px;color:#6a7686;margin-top:3px}.receiver-custom-result{padding:12px;border-radius:9px;font-size:10px;line-height:1.6;margin:12px 0}.receiver-custom-result.enough{background:#eef8f1;border:1px solid #bddbc5;color:#315e3d}.receiver-custom-result.short{background:#fff5ed;border:1px solid #ebcbb2;color:#844f2d}#gas-project-use{width:100%}
.receiver-actions{margin:20px 0}.receiver-scope{margin-top:22px;padding:18px;border:1px solid var(--line,#dedee3);border-radius:14px}.receiver-scope h3{margin:0 0 10px}.receiver-scope p{line-height:1.6}.engineering-tool-tab[aria-current="false"]{background:transparent;box-shadow:none}#receiver-tool .ambient-result{margin-top:22px}#receiver-advanced .two{margin-top:16px}
@media(max-width:1100px){.nitrogen-calculator-grid{grid-template-columns:1fr}.nitrogen-calculator-grid>.calc-outcome{border-top:1px solid var(--line);padding-top:20px}}
@media(max-width:750px){.gas-scenario-tabs{grid-template-columns:1fr}.nitrogen-fieldset{padding:13px}.nitrogen-summary{grid-template-columns:1fr}.nitrogen-model-card>strong{font-size:21px}.nitrogen-buffer>div{display:block}.nitrogen-buffer b{display:block;text-align:left;margin-top:4px}.receiver-combinations>div{grid-template-columns:1fr}}

#engineering-tool-list{display:grid;gap:8px}

.water-table-wrap{overflow-x:auto}.water-table{width:100%;border-collapse:collapse;font-size:13px}.water-table th,.water-table td{padding:13px 10px;border-bottom:1px solid var(--line);text-align:right;font-variant-numeric:tabular-nums}.water-table th:first-child{text-align:left;font-weight:500}.water-table thead th{background:#eef3fc;font-weight:650}.water-table tbody th{min-width:180px}

.pressure-cost-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.pressure-cost-results strong{display:block;margin-top:10px;font-size:20px;color:#285eb8;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}@media(max-width:750px){.pressure-cost-results{grid-template-columns:1fr}}

.unit-fields{margin-top:20px}.unit-row{display:grid;grid-template-columns:minmax(100px,1fr) minmax(100px,1.4fr) auto;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}.unit-row label{margin:0}.unit-row input{font-variant-numeric:tabular-nums}.unit-row button{font-size:11px;padding:9px}@media(max-width:550px){.unit-row{grid-template-columns:minmax(75px,1fr) minmax(90px,1.4fr) auto;gap:6px}.unit-row label{font-size:11px}.unit-row button{font-size:10px;padding:8px 5px}}

.maintenance-scroll{overflow-x:auto}.maintenance-table,.tco-yearly{width:100%;border-collapse:collapse;font-size:11px}.maintenance-table th,.maintenance-table td,.tco-yearly th,.tco-yearly td{padding:9px 5px;border-bottom:1px solid var(--line);text-align:right}.maintenance-table th:first-child,.tco-yearly th:first-child{text-align:left}.maintenance-table input{min-width:85px}.maintenance-table select{min-width:115px}.maintenance-table button{padding:5px 8px}.maintenance-add{display:flex;align-items:end;gap:10px;margin:15px 0}.maintenance-add label{flex:1;margin:0}.tco-pie-layout{display:grid;grid-template-columns:150px 1fr;gap:15px;align-items:center}#tco-chart svg{display:block;width:100%;height:auto}.tco-legend{list-style:none;margin:0;padding:0}.tco-legend li{position:relative;padding-left:16px;margin:12px 0;font-size:11px}.tco-legend li>span{position:absolute;left:0;top:4px;width:9px;height:9px;border-radius:2px}.tco-legend b{display:block;font-weight:600;margin-top:3px}.tco-chart-section{margin:22px 0}.tco-summary{position:static}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}@media(max-width:550px){.tco-pie-layout{grid-template-columns:120px 1fr}.maintenance-add{display:block}.maintenance-add button{margin-top:8px}}

.tco-inputs,.tco-summary{min-width:0}

/* Gas cylinder economics prototype */
.gas-economics{margin-bottom:24px;padding:26px;overflow:hidden}.economics-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:22px}.economics-heading h2{margin:5px 0 7px;font-size:24px;color:#263349}.economics-heading p{max-width:820px;margin:0;font-size:12px;line-height:1.7}.economics-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(420px,.92fr);gap:22px;align-items:start}.economics-input-column{display:grid;gap:14px}.economics-block{border:1px solid #dce4f1;border-radius:13px;padding:16px;margin:0;background:#fff}.economics-block legend{padding:0 8px;font-size:13px;font-weight:700;color:#263c61}.economics-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.economics-fields label,.economics-installation-capex{margin:0}.economics-fields input,.economics-fields select,.economics-installation-capex input{margin-top:5px}.economics-mode-list{display:grid;gap:8px}.economics-mode-list>label{display:flex;align-items:flex-start;gap:10px;border:1px solid #d9e1ed;border-radius:10px;padding:11px;cursor:pointer;background:#fafbfd}.economics-mode-list>label.selected{border-color:#7299da;background:#eef4ff}.economics-mode-list input{width:auto;margin:3px 0 0;accent-color:#2d68ce}.economics-mode-list b{display:block;font-size:12px;color:#30405a}.economics-mode-list small{display:block;margin-top:3px;font-size:10px;line-height:1.5}.economics-result-column{position:sticky;top:18px;border:1px solid #d8e3f5;border-radius:14px;background:#f7faff;padding:18px;min-width:0}.economics-empty{color:#718099;font-size:12px;line-height:1.8;padding:25px 12px;text-align:center}.economics-kpis{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.economics-kpis article{background:#fff;border:1px solid #dce5f3;border-radius:10px;padding:12px}.economics-kpis small{display:block;font-size:9px}.economics-kpis b{display:block;margin-top:5px;color:#275db5;font-size:15px;overflow-wrap:anywhere}.economics-mode-note{font-size:10px;line-height:1.6;background:#edf4ff;border-radius:8px;padding:9px 11px;margin:11px 0}.economics-chart svg{display:block;width:100%;height:auto;max-height:250px}.economics-chart text{font:11px system-ui,sans-serif;fill:#506078}.economics-period-table{width:100%;border-collapse:collapse;font-size:10px}.economics-period-table th,.economics-period-table td{padding:8px 6px;border-bottom:1px solid #dfe6f1;text-align:right;white-space:nowrap}.economics-period-table th:first-child,.economics-period-table td:first-child{text-align:left}.economics-positive{color:#188064;font-weight:700}.economics-negative{color:#b15147;font-weight:700}.economics-matrix-block{margin-top:20px}.economics-matrix-actions{display:flex;gap:8px;margin:12px 0}.economics-matrix{border-collapse:separate;border-spacing:0;min-width:720px;width:100%;font-size:10px}.economics-matrix th,.economics-matrix td{vertical-align:top;border-right:1px solid #dfe5ed;border-bottom:1px solid #dfe5ed;padding:8px;min-width:145px}.economics-matrix th:first-child,.economics-matrix td:first-child{position:sticky;left:0;z-index:2;background:#fff;min-width:230px}.economics-matrix thead th{background:#f2f6fc;color:#31435f}.economics-matrix input,.economics-matrix select{font-size:10px;padding:8px;margin:3px 0}.matrix-service-name{font-weight:700}.matrix-service-cell input+input{margin-top:5px}.matrix-equipment-toggle{display:grid;grid-template-columns:18px 1fr;align-items:center;gap:5px;margin:0}.matrix-equipment-toggle input[type=checkbox]{width:14px;margin:0;accent-color:#2d68ce}.matrix-remove-column{margin-top:5px;padding:5px 7px;background:#fff;color:#9b4b44;border-color:#e6c8c4;font-size:9px}.economics-installation-capex{display:block;max-width:320px;margin-top:14px}.economics-maintenance-hint{display:flex;gap:10px;align-items:flex-start;background:#eef4ff;border:1px solid #d5e2f8;border-radius:10px;padding:11px 14px;margin-top:12px;font-size:11px}.economics-maintenance-hint span{color:#647691}.economics-submit{margin-top:15px}.optimize-divider{display:flex;align-items:center;gap:12px;margin:27px 0 18px;color:#7a8492;font-size:10px;text-transform:uppercase;letter-spacing:1px}.optimize-divider:before,.optimize-divider:after{content:"";height:1px;background:#dfe3e9;flex:1}.economics-event-list{display:grid;gap:7px;margin-top:9px}.economics-event-list>div{display:grid;grid-template-columns:1fr auto;gap:3px 10px;padding:8px 0;border-bottom:1px solid #dfe6f1;font-size:10px}.economics-event-list small{grid-column:1/-1}.economics-event-list span{font-weight:700}.economics-matrix tr.has-error td{background:#fff8f5}
@media(max-width:1000px){.economics-grid{grid-template-columns:1fr}.economics-result-column{position:static}.economics-heading{display:block}.economics-heading .mode-badge{display:inline-block;margin-top:10px}}
@media(max-width:600px){.gas-economics{padding:16px}.economics-heading h2{font-size:20px}.economics-fields{grid-template-columns:1fr}.economics-kpis{grid-template-columns:1fr 1fr}.economics-result-column{padding:12px}.economics-matrix-actions{display:grid;grid-template-columns:1fr 1fr}.economics-period-table{font-size:9px}}

.configure-source-note{margin:24px 4px 0;padding-top:14px;border-top:1px solid var(--line);font-size:10px;line-height:1.7;color:#687381}.configure-source-note a{color:inherit;text-decoration:underline;text-underline-offset:2px}.configure-source-note a:hover{color:#2d68ce}

.gas-installation-guide-slot{grid-column:1/-1;min-width:0;margin-top:2px}.gas-installation-guide{margin:16px 0;border:1px solid #d6e1f2;border-radius:14px;background:linear-gradient(180deg,#fbfdff 0%,#f3f7fd 100%);padding:20px}.gas-guide-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.gas-guide-heading h3{font-size:16px;line-height:1.4;margin:5px 0;color:#293b56}.gas-iso-badge{flex-shrink:0;border:1px solid #b9cbea;border-radius:999px;background:#eaf1fd;color:#285cae;padding:5px 9px;font-size:10px;font-weight:750}.gas-current-data{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:7px;margin:15px 0 12px}.gas-current-data span{background:white;border:1px solid #e0e7f2;border-radius:8px;padding:8px;min-width:0}.gas-current-data small,.gas-current-data b{display:block}.gas-current-data small{font-size:9px;color:#718097}.gas-current-data b{font-size:11px;color:#2d3b50;overflow-wrap:anywhere;margin-top:2px}.gas-train-canvas{width:100%;overflow-x:auto;overflow-y:hidden;padding:8px 0 10px;background:#fff;border:1px solid #e1e8f3;border-radius:10px;scrollbar-width:thin;scrollbar-color:#8fa5c5 #e8eef7}.gas-train-svg{display:block;width:100%;height:auto}.gas-equipment-svg{filter:drop-shadow(0 5px 5px #173e7c20)}.gas-pipe{fill:none;stroke:#087cf0;stroke-width:6;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 2px 2px #087cf035)}.gas-pipe-joint{fill:#fff;stroke:#087cf0;stroke-width:2}.gas-callout{fill:none;stroke:#2d68ce;stroke-width:1.4}.gas-pipe-end,.gas-flow-arrow{fill:#087cf0}.gas-flow-arrow{opacity:.95}.gas-floor-line{fill:none;stroke:#dfe7f2;stroke-width:1.2}.gas-stage-number{fill:#fff;stroke:#095ccb;stroke-width:1.8}.gas-stage-number-text{fill:#095ccb;font-size:10px;font-weight:800}.gas-stage-title{fill:#27384f;font-size:11px;font-weight:750}.gas-stage-note{fill:#708097;font-size:9px}.gas-flow-caption{fill:#5a7091;font-size:9px;font-weight:800;letter-spacing:1.1px}.gas-flow-caption-end{fill:#285fae}.gas-rule{font-size:10px;line-height:1.65;color:#60718a;border-top:1px solid #dce5f2;padding-top:11px;margin:10px 0 0}.gas-rule b{color:#344f78}@media(max-width:760px){.gas-guide-heading{display:block}.gas-iso-badge{display:inline-block;margin-top:7px}.gas-current-data{grid-template-columns:repeat(2,minmax(0,1fr))}.gas-current-data span:last-child{grid-column:1/-1}.gas-installation-guide{padding:13px}.gas-guide-heading h3{font-size:14px}}

/* Configure validation, explanation and connected installation */
.delta{white-space:normal;text-align:right;max-width:150px;line-height:1.35}.pressure-match{display:grid;gap:4px;margin:10px 0;padding:10px 11px;border:1px solid #efcf9d;border-radius:8px;background:#fff7e9;color:#744d1e}.pressure-match b{font-size:11px}.pressure-match span{font-size:11px}.pressure-match small{font-size:10px;line-height:1.55;color:#805f39}.no-candidate{display:grid;gap:8px}.no-candidate strong{font-size:13px;color:#34445d}.no-candidate span,.no-candidate small{display:block}.no-candidate small{line-height:1.55}.equipment-group{border:1px solid #e1e7ec;border-radius:9px;background:#fbfcfd;margin:9px 0;overflow:hidden}.equipment-group>summary{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 12px;cursor:pointer;color:#3d5662;font-size:12px;font-weight:700;list-style:none}.equipment-group>summary::-webkit-details-marker{display:none}.equipment-group>summary:before{content:'›';font-size:18px;line-height:1;color:#2d68ce;transition:transform .15s}.equipment-group[open]>summary:before{transform:rotate(90deg)}.equipment-group>summary span{margin-right:auto}.equipment-group>summary small{color:#72818c}.equipment-group>.equipment-grid{margin:0;padding:2px 12px 12px;border-top:1px solid #e8edf0}.configure-installation-schemes{margin:18px 0 2px}.configure-installation-schemes .gas-installation-guide{margin:0}.configure-scheme h4{margin:0 0 10px;font-size:13px;color:#2d3b50}.configure-installation-schemes .gas-train-svg{min-width:900px}.configure-installation-schemes .gas-rule{margin-bottom:0}
@media(max-width:750px){.equipment-grid{grid-template-columns:1fr}.delta{max-width:120px}.pressure-match{padding:9px}.configure-installation-schemes .gas-installation-guide{padding:12px}.configure-installation-schemes .gas-train-svg{min-width:820px}.equipment-group>summary{padding:10px}.equipment-group>.equipment-grid{padding:2px 10px 10px}}

/* Optimize order and gas economics refinements */
#workspace-optimize:not([hidden]){display:flex;flex-direction:column}#workspace-optimize>.intro{order:0}#workspace-optimize>#tco-form{order:1}#workspace-optimize>#tco-saved{order:2}#workspace-optimize>.optimize-divider{order:3}#workspace-optimize>#gas-economics{order:4;margin-top:28px}.economics-heading{height:auto;min-height:0;background:transparent;color:inherit;padding:0}.economics-calculated-field{display:flex;align-items:center;min-height:37px;margin-top:18px;padding:8px 10px;border:1px solid #cbdaf1;border-radius:7px;background:#eef4ff;color:#285ba8;font-size:11px;font-weight:700}.economics-matrix .matrix-service-cell{min-width:270px}.matrix-labor-fields{display:grid;grid-template-columns:repeat(3,minmax(72px,1fr));gap:5px}.matrix-service-cell>small{display:block;margin-top:6px;color:#285ba8;font-weight:700}@media(max-width:600px){.matrix-labor-fields{grid-template-columns:1fr}.economics-calculated-field{margin-top:0}}