/* CHAAAM Engineering v1 — independently scoped, mobile-first production styles */
:root{color-scheme:light;--ink:#182f50;--muted:#697e98;--edge:#dfe8f4;--blue:#2867dc;--wash:#f6f9ff}*{box-sizing:border-box}
body{margin:0;background:#f7f9fc;color:var(--ink);font:14px/1.58 system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.53}a{text-decoration:none;color:#2864c3}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #7da6f5;outline-offset:2px}[hidden]{display:none!important}
.wrap{width:min(1510px,100%);margin:0 auto;padding:0 22px}.skip{position:absolute;top:-100px;left:20px;padding:10px;background:#fff;z-index:20}.skip:focus{top:10px}
.site-header{background:rgba(255,255,255,.98);border-bottom:1px solid #e5edf6}.head{min-height:73px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{font-weight:850;font-size:29px;letter-spacing:-2px;color:#172e54}.logo span{color:#4781ee}.logo b{color:#e56c94}
.site-header nav{display:flex;gap:18px;flex-wrap:wrap;align-items:center}.site-header nav a{font-size:12px;font-weight:750;color:#516989}
.hero{padding-top:47px;padding-bottom:37px;display:grid;grid-template-columns:minmax(0,1.42fr) minmax(320px,.85fr);gap:58px;align-items:center}
.eyebrow{display:block;color:#376bb7;font-size:10px;letter-spacing:1.35px;font-weight:850;margin:0 0 11px}
.live-dot{display:inline-block;height:7px;width:7px;background:#39b396;border-radius:50%;margin-right:8px;box-shadow:0 0 0 4px #e1f9f0}
.hero h1{font-size:clamp(35px,4vw,57px);line-height:1.08;letter-spacing:-2.25px;margin:0 0 16px}.hero h1 span{color:#3775df}
.hero-copy>p:not(.eyebrow){color:var(--muted);font-size:14px;max-width:680px;margin:0 0 20px}
.hero-buttons{display:flex;gap:9px;flex-wrap:wrap}.hero-buttons a{display:inline-flex;align-items:center;justify-content:space-between;gap:15px;min-height:44px;padding:10px 16px;border-radius:10px;font-size:12px;font-weight:780}
.hero-buttons .primary{background:#2869dc;color:white;box-shadow:0 7px 21px #2c6bd121}.hero-buttons .primary:hover{background:#1b58c6;text-decoration:none}
.hero-buttons .secondary{background:white;border:1px solid #d6e2f3}.hero-buttons .secondary:hover{text-decoration:none;background:#f2f7ff}
.trust{display:flex;gap:13px;flex-wrap:wrap;color:#5b8b79;font-weight:700;font-size:11px;margin-top:18px}
.hero-art{background:#fff;border:1px solid var(--edge);border-radius:18px;box-shadow:0 16px 35px #224e9d10;padding:18px;transform:rotate(1deg)}
.art-heading{display:flex;justify-content:space-between;color:#6f86a6;letter-spacing:1px;font-size:10px;font-weight:850;margin-bottom:12px}.art-heading span{color:#3978da}
.hero-art svg{width:100%;height:auto;display:block;border-radius:10px}
.art-footer{display:flex;gap:15px;font-size:10px;color:#6a7f9a;margin-top:11px}.art-footer strong{margin-left:auto;color:#3267c5}.art-footer i{display:inline-block;height:7px;width:7px;border-radius:3px;margin-right:3px}.dot-blue{background:#397de0}.dot-green{background:#16a68e}
.roadmap-banner{background:#fff;border:1px solid #e2eaf5;box-shadow:0 4px 20px #13377507;border-radius:14px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin:0 0 32px}
.roadmap-banner>div{padding:16px 22px;display:grid;gap:2px}.roadmap-banner>div+div{border-left:1px solid #e6edf6}.roadmap-banner strong{font-size:12px}.roadmap-banner small{font-size:11px;color:#8494a9}
.workbench{scroll-margin-top:15px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:18px}
.section-head h2{font-size:26px;letter-spacing:-.8px;margin:0 0 4px}.section-head p{font-size:12px;color:#7c8da3;margin:0}
.count{font-size:11px;color:#356db8;background:#ebf3ff;border-radius:16px;padding:6px 10px;font-weight:800}
.layout{display:grid;grid-template-columns:minmax(225px,.9fr) minmax(390px,1.6fr) minmax(280px,1fr);gap:14px;align-items:stretch}
.panel{background:#fff;border:1px solid var(--edge);border-radius:16px;box-shadow:0 6px 22px #29486f08;min-width:0;overflow:hidden}
.panel-head{padding:19px 18px 14px;display:flex;align-items:start;justify-content:space-between;gap:10px;border-bottom:1px solid #e9eef6}
.panel-head h3{font-size:15px;margin:0;line-height:1.35;letter-spacing:-.35px}.panel-head p{font-size:11px;color:#788ba4;margin:4px 0 0}
.pill{font-size:10px;white-space:nowrap;color:#4775b5;background:#edf4ff;padding:5px 9px;border-radius:8px;font-weight:800}.pill.success{color:#11856d;background:#e9f8f1}
.tool-controls{padding:15px}.search-label{display:block;font-size:11px;font-weight:740;margin-bottom:7px}
#toolSearch{border:1px solid #d5e1f0;background:#fbfcff;border-radius:9px;min-height:42px;padding:9px 11px;width:100%;font-size:12px}
.filters{display:flex;gap:6px;margin:11px 0 13px}.filters button{border:1px solid #dbe5f3;background:#fff;border-radius:8px;font-size:10px;font-weight:790;color:#617792;padding:7px 9px}
.filters button[aria-pressed=true]{color:#fff;background:#306cdb;border-color:#306cdb}
.tool-items{display:grid;gap:6px;max-height:685px;overflow-y:auto;padding:2px 2px 7px}
.tool-card{display:flex;width:100%;align-items:center;gap:10px;padding:12px 10px;background:#fff;border:1px solid transparent;border-radius:10px;color:#26415e;text-align:left}
.tool-card:hover{background:#f4f8ff;border-color:#e0ebfa}.tool-card[aria-pressed=true]{background:#edf5ff;border-color:#a8c9f9}
.tool-card.upcoming{opacity:.79}.tool-icon{flex:0 0 34px;height:34px;display:grid;place-items:center;color:#2b67bc;background:#e9f2ff;border-radius:9px;font-size:19px;font-weight:800}
.tool-card.upcoming .tool-icon{background:#f1f3f8;color:#708299}.tool-copy{flex:1;min-width:0}.tool-copy strong{display:block;font-size:11px;line-height:1.33;margin-bottom:3px}.tool-copy small{display:block;font-size:10px;color:#8294ab;line-height:1.35}
.tool-state{align-self:flex-start;font-size:9px;font-weight:850;border-radius:7px;background:#f0f2f7;color:#8693a9;padding:3px 5px}.tool-state.live{color:#14876b;background:#e6f8ef}
.main-head{background:linear-gradient(150deg,#fafdff,#f5f9ff);padding:20px}
.main-head h3{font-size:19px;margin:3px 0 5px;letter-spacing:-.55px}.tiny-kicker{display:block;color:#3e74be;font-size:10px;font-weight:820;letter-spacing:1.1px}.calc-content{padding:20px}
.field{margin-bottom:17px}.field label{display:block;font-size:12px;font-weight:740;margin:0 0 7px;color:#385471}
.field input,.field select{background:#fff;border:1px solid #cad9ed;border-radius:10px;min-height:43px;padding:9px 12px;width:100%;color:#1c375a;font-size:13px}
.field input:focus,.field select:focus{border-color:#77a4e8}
.field-help{font-size:10px;color:#8296ad;margin:5px 0 0}.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 14px}
.calc-title{font-size:13px;font-weight:830;margin:4px 0 16px;color:#28486d}
.calculate{width:100%;min-height:47px;display:flex;align-items:center;justify-content:center;gap:12px;background:#2869dc;color:#fff;border:0;border-radius:10px;font-weight:790;font-size:12px;margin-top:6px}
.calculate:hover{background:#1955c7}.calculate span{font-size:19px}
.planned{border-radius:11px;border:1px solid #d7e4f5;background:#f6f9fe;padding:20px}.planned h4{margin:10px 0;font-size:19px}
.planned p{font-size:12px;color:#657d9a}.planned a{font-weight:780;font-size:12px}
.result-content{padding:19px 17px}.result-empty{min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:9px}
.result-empty span{width:64px;height:64px;display:grid;place-items:center;font-size:28px;border-radius:17px;background:#eaf2ff;color:#3570d2}
.result-empty strong{font-size:12px}.result-empty p{font-size:11px;color:#8293aa;max-width:230px;margin:0}
.result-values{display:grid;gap:8px;margin:10px 0 15px}.result-value{padding:12px;background:#f2f7ff;border:1px solid #dfebfc;border-radius:10px}
.result-value span{display:block;font-size:10px;color:#6e829d;font-weight:700}.result-value strong{display:block;font-size:18px;letter-spacing:-.4px;margin:2px 0 0;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.result-content h4{font-size:12px;margin:18px 0 8px}
.method{font-size:11px;color:#72849b;line-height:1.7;margin:0 0 10px;overflow-wrap:anywhere}
.method-list{border:1px solid #e1e9f3;border-radius:9px;padding:10px;background:#fbfdff;display:grid;gap:6px}
.method-list div{font-size:11px;line-height:1.5;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:#4d6687;overflow-wrap:anywhere}
.alert{padding:10px;background:#fff3e9;border:1px solid #f7d6af;color:#865514;border-radius:8px;font-size:11px}
.result-actions{display:grid;gap:7px;margin-top:23px}.result-actions button{min-height:39px;border:1px solid #d4e1f2;background:#fff;color:#3265ae;font-size:11px;font-weight:780;border-radius:9px}
.result-actions button:hover:not(:disabled){background:#f2f7ff}
.safety-note{display:flex;gap:8px;align-items:flex-start;background:#eef5ff;border:1px solid #dce9fa;border-radius:10px;padding:13px 16px;color:#5f789a;font-size:11px;margin:17px 0 50px}.safety-note strong{color:#3e628f}
.footer{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:19px 0;color:#8494a9;font-size:11px}
footer{border-top:1px solid #e4eaf2;background:#fff}.footer nav{display:flex;gap:17px}
@media(max-width:1200px){.layout{grid-template-columns:minmax(210px,.88fr) minmax(340px,1.5fr) minmax(250px,1fr)}.hero{gap:26px}.tool-copy small{font-size:9px}}
@media(max-width:950px){.hero{grid-template-columns:1fr;padding-top:36px;gap:14px}.hero-art{display:none}.layout{grid-template-columns:repeat(2,minmax(0,1fr))}.tool-panel{grid-column:1/-1}.tool-items{grid-template-columns:repeat(2,minmax(0,1fr));max-height:295px}.calc-panel{grid-column:1}.result-panel{grid-column:2}}
@media(max-width:600px){.wrap{padding:0 13px}.head{padding-top:12px;padding-bottom:12px;gap:9px;flex-wrap:wrap}.logo{font-size:26px}.site-header nav{gap:10px}.site-header nav a{font-size:11px}.hero{padding-top:27px;padding-bottom:20px}.hero h1{font-size:35px;letter-spacing:-1.2px}.hero-copy>p:not(.eyebrow){font-size:12px}.roadmap-banner{grid-template-columns:1fr;margin-bottom:24px}.roadmap-banner>div{padding:12px 15px}.roadmap-banner>div+div{border-left:0;border-top:1px solid #e6edf6}.section-head h2{font-size:22px}.layout{grid-template-columns:1fr}.tool-panel,.calc-panel,.result-panel{grid-column:1}.tool-items{grid-template-columns:1fr;max-height:350px}.field-grid{grid-template-columns:1fr}.calc-content{padding:16px}.result-empty{min-height:145px}.safety-note{margin-bottom:32px}}
@media print{body{background:white}.site-header,.hero,.roadmap-banner,.tool-panel,.tool-controls,#calculatorForm,.result-actions,.safety-note,footer{display:none!important}.layout{display:block}.calc-panel{display:none}.result-panel{box-shadow:none!important;border:0}.result-content{padding:8px}#resultFull{display:block!important}#resultEmpty{display:none!important}.section-head{margin-bottom:0}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}


/* Advanced engineering studios — works with the existing compact dashboard. */
.calc-content textarea{display:block;width:100%;min-height:128px;padding:11px 12px;border:1px solid #cad9ed;border-radius:10px;background:#fff;color:#1d3759;font:12px/1.65 ui-monospace,Consolas,monospace;resize:vertical}
.calc-content input[type=file]{padding:10px;border:1px dashed #96b8e8;background:#f6faff;height:auto;min-height:44px;font-size:11px}
.calc-content textarea:focus-visible,.calc-content input[type=file]:focus-visible{outline:3px solid #8cb8ff;outline-offset:2px}
.advanced-visual{margin-top:16px;border-top:1px solid #e4ebf5;padding-top:12px;min-width:0}
.advanced-visual:empty{display:none}
.advanced-visual h4{font-size:12px;font-weight:820;margin:7px 0 10px;color:#37577b}
.engine-chart{display:block;width:100%;max-width:100%;height:245px;border:1px solid #e1eaf6;border-radius:11px;background:#f7faff}
.stl-canvas{height:345px;cursor:grab;touch-action:none}.stl-canvas:active{cursor:grabbing}
.engine-viz-caption{font-size:11px;color:#69809d;line-height:1.55}
.fit-range{background:linear-gradient(90deg,#e7f3ff,#fafcff);padding:11px;border-left:3px solid #568bdd;border-radius:8px;font-size:11px;margin:6px 0;color:#315b91;font-variant-numeric:tabular-nums}
@media(max-width:600px){.advanced-visual{margin-top:10px}.stl-canvas{height:290px}.calc-content textarea{font-size:12px}}
@media print{.advanced-visual{page-break-inside:avoid}.stl-canvas{max-height:245px}}


/* Engineering V2 — focused same-origin calculator embed, crawlable discovery links, report status */
.report-status{font-size:11px;line-height:1.6;color:#4b729d;min-height:0;margin:10px 0 0}
.report-status:empty{display:none}
.discovery{padding-bottom:48px}.discovery h2{font-size:24px;letter-spacing:-.6px;margin:2px 0 4px}
.discovery>p{color:#69819c;font-size:12px;margin:0 0 17px}
.discovery-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:9px}
.discovery-grid>a{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:13px 12px;min-width:0;background:#fff;border:1px solid #dce7f5;border-radius:11px;font-weight:750;font-size:11px;color:#325f9b}
.discovery-grid>a:hover{background:#f1f7ff;text-decoration:none;border-color:#adc8ee}
.discovery-grid>a>span{color:#5787cc;flex-shrink:0}
.embed-mode body{background:#fff}
.embed-mode .site-header,.embed-mode .hero,.embed-mode #roadmap,.embed-mode .section-head,.embed-mode .tool-panel,.embed-mode .safety-note,.embed-mode .discovery,.embed-mode footer{display:none!important}
.embed-mode .workbench{width:100%;padding:10px;margin:0}
.embed-mode .layout{grid-template-columns:minmax(320px,1.3fr) minmax(280px,1fr);gap:12px}
.embed-mode .calc-panel{grid-column:1}.embed-mode .result-panel{grid-column:2}
.embed-mode .panel{box-shadow:none;border:1px solid #e1eaf6}
.embed-mode .calc-content{padding:17px}
.embed-mode .result-content{padding:17px}
@media(max-width:1050px){.discovery-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:800px){.embed-mode .layout{grid-template-columns:1fr}.embed-mode .calc-panel,.embed-mode .result-panel{grid-column:1}}
@media(max-width:650px){.discovery-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.embed-mode .workbench{padding:5px}.embed-mode .layout{gap:9px}}
@media print{.embed-mode .result-panel{width:100%}.discovery{display:none}}

/* Save input presets locally, compare engineering cases without an account */
.preset-panel{margin-top:20px;border:1px solid #dce8f5;background:linear-gradient(155deg,#f7faff,#fff);border-radius:11px;padding:14px}
.preset-panel h4{font-size:12px;margin:0 0 4px}.preset-panel h4 span{font-size:9px;font-weight:600;color:#7b8da5}
.preset-panel>p{margin:4px 0 10px;color:#7a8da5;font-size:10px}
.preset-row{display:flex;align-items:stretch;gap:6px;margin:8px 0}.preset-row input,.preset-row select{flex:1;min-width:0;width:100%;background:#fff;border:1px solid #cfddee;border-radius:8px;padding:8px;font-size:11px}
.preset-row button{border:1px solid #bcd3ee;background:#ebf4ff;border-radius:8px;color:#275c9e;padding:7px 10px;font-size:10px;font-weight:790}
.preset-row button:hover{background:#dfefff}
#presetStatus{color:#3d7495;font-size:10px;margin:8px 0 0}
#presetStatus:empty{display:none}
.case-compare{border-top:1px solid #e2ebf6;margin:15px 0;padding:14px 0 0}
.case-compare button{border:1px solid #c9def8;background:#ecf5ff;border-radius:8px;color:#3264a9;font-size:11px;font-weight:750;padding:8px 12px}
.case-compare button:disabled{opacity:.5}
#caseComparison>p{font-size:10px;color:#748ba6}
.comparison-grid{display:grid;gap:5px;margin-top:9px}
.comparison-grid>div{padding:8px 10px;border-radius:8px;background:#f4f9ff;display:flex;justify-content:space-between;gap:9px}
.comparison-grid span{font-size:10px;color:#647e9f}
.comparison-grid strong{font-size:11px;color:#245a9a;word-break:break-word;text-align:end;font-variant-numeric:tabular-nums}
@media(max-width:480px){.preset-row{flex-wrap:wrap}.preset-row button{min-height:35px}}
@media print{.preset-panel,.case-compare>button{display:none!important}#caseComparison{display:block}}