:root{--bg: #f5f2eb;--card-bg: #fffdfa;--border: #d5cec1;--ink: #17201c;--muted: #5b625f;--accent: #7a2f24;font-family:system-ui,-apple-system,Segoe UI,Arial,sans-serif;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0;-webkit-tap-highlight-color:transparent}.app{margin:0 auto;max-width:1180px;padding:14px 14px 24px}.app-header{align-items:flex-start;display:flex;gap:12px;justify-content:space-between;margin-bottom:12px}.app-header h1{font-size:22px;margin:0}.subtitle{color:var(--muted);font-size:13px;margin:2px 0 0}.platform-nav{background:#fffdfac7;border:1px solid var(--border);border-radius:10px;box-shadow:0 6px 18px #241e140d;display:grid;gap:9px;margin-bottom:12px;padding:10px 12px}.material-selector{align-items:center;display:flex;gap:9px;min-width:0}.platform-label{color:var(--muted);flex:0 0 auto;font-size:12px;font-weight:800;letter-spacing:.04em;text-transform:uppercase}.material-options,.roadmap-items{display:flex;flex-wrap:wrap;gap:6px;min-width:0}.material-option,.roadmap-item{align-items:center;background:#f8f4ed;border:1px solid #ded7cb;border-radius:7px;color:var(--ink);cursor:pointer;display:inline-flex;font:inherit;font-size:12px;font-weight:750;gap:6px;min-height:30px;padding:4px 9px}.material-option.active,.roadmap-item.active{background:var(--ink);border-color:var(--ink);color:#fff}.material-option.planned,.roadmap-item.planned{color:#5f625d}.material-option small{background:#7a2f2417;border:1px solid rgba(122,47,36,.18);border-radius:999px;color:#7a2f24;font-size:10px;font-weight:750;line-height:1;padding:3px 6px}.module-roadmap{align-items:flex-start;border-top:1px solid rgba(213,206,193,.78);display:flex;gap:9px;min-width:0;padding-top:8px}.roadmap-title{color:var(--ink);flex:0 0 auto;font-size:13px;font-weight:850;line-height:30px}.roadmap-item{background:transparent;min-height:28px}.roadmap-item.active{background:#edf2e8;border-color:#b9c7ad;color:#253420}.platform-modal-layer{align-items:center;display:flex;top:0;right:0;bottom:0;left:0;justify-content:center;padding:18px;position:fixed;z-index:60}.platform-modal-backdrop{background:#16120e4d;border:0;cursor:default;top:0;right:0;bottom:0;left:0;padding:0;position:absolute}.platform-modal{background:var(--card-bg);border:1px solid rgba(115,96,70,.32);border-radius:10px;box-shadow:0 18px 46px #14100c3d;max-width:min(460px,calc(100vw - 36px));padding:16px 18px 17px;position:relative}.platform-modal h3{font-size:18px;line-height:1.2;margin:0 38px 8px 0}.platform-modal p{color:var(--muted);font-size:14px;line-height:1.5;margin:0}.platform-modal-close{align-items:center;background:#fffdfa;border:1px solid var(--border);border-radius:999px;color:var(--ink);cursor:pointer;display:inline-flex;font-size:21px;height:32px;justify-content:center;line-height:1;position:absolute;right:10px;top:10px;width:32px}.lang-switch{display:inline-flex;gap:4px}.lang-btn,.level-btn,.learnmore-toggle{background:var(--card-bg);border:1px solid var(--border);border-radius:7px;color:var(--ink);cursor:pointer;font-size:13px;min-height:38px;padding:6px 12px}.lang-btn.active,.level-btn.active{background:var(--ink);border-color:var(--ink);color:#fff}.layout{display:grid;gap:14px;grid-template-columns:1fr}@media(min-width:920px){.layout{grid-template-columns:minmax(480px,1.2fr) minmax(340px,1fr)}}.column{display:flex;flex-direction:column;gap:14px;min-width:0}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:10px;box-shadow:0 8px 22px #241e1412;padding:14px}.card h2{font-size:15px;margin:0 0 10px}.phase-diagram{aspect-ratio:20 / 21;border:1px solid var(--border);border-radius:6px;cursor:crosshair;display:block;touch-action:none;width:100%}.diagram-stage{position:relative}.diagram-help-layer{top:0;right:0;bottom:0;left:0;pointer-events:none;position:absolute;z-index:5}.diagram-help-card{background:#fffdfae8;border:1px solid rgba(115,96,70,.28);border-radius:7px;box-shadow:0 8px 18px #241e1424;max-width:min(230px,calc(100% - 24px));padding:8px;pointer-events:auto;position:absolute;right:0;top:0}.diagram-help-title{font-size:12px;font-weight:800;line-height:1.2;margin-bottom:6px}.diagram-help-actions{display:flex;gap:5px}.diagram-help-btn{background:#fffdfa;border:1px solid var(--border);border-radius:6px;color:var(--ink);cursor:pointer;font-size:12px;font-weight:700;min-height:30px;padding:4px 8px}.diagram-help-btn:hover,.diagram-help-close:hover{border-color:var(--accent)}.diagram-help-modal-layer{align-items:center;display:flex;top:0;right:0;bottom:0;left:0;justify-content:center;padding:18px;pointer-events:auto;position:absolute}.diagram-help-backdrop{background:#16120e47;border:0;cursor:default;top:0;right:0;bottom:0;left:0;padding:0;position:absolute}.diagram-help-modal{background:#fffdfaf7;border:1px solid rgba(115,96,70,.3);border-radius:8px;box-shadow:0 18px 42px #14100c40;max-height:calc(100% - 24px);max-width:min(520px,100%);overflow:auto;padding:16px 18px 17px;position:relative;width:72%}.diagram-help-modal h3{font-size:17px;line-height:1.2;margin:0 32px 8px 0}.diagram-help-modal p{color:#2f3632;font-size:14px;line-height:1.55;margin:0}.diagram-help-close{align-items:center;background:#fffdfa;border:1px solid var(--border);border-radius:999px;color:var(--ink);cursor:pointer;display:inline-flex;font-size:21px;font-weight:600;height:32px;justify-content:center;line-height:1;position:absolute;right:10px;top:10px;width:32px}.diagram-hint{color:var(--muted);font-size:12px;margin:8px 0 0}.preview-duo{display:grid;gap:8px;grid-template-columns:1fr 1fr}.preview-half{margin:0;min-width:0}.product-icon{display:block;height:42px;width:58px}.product-image{border-radius:4px;object-fit:contain}.microstructure-canvas{background:#ddd;border:3px solid #222;border-radius:6px;display:block;image-rendering:auto;width:100%}.preview-caption{color:var(--ink);display:flex;flex-direction:column;font-size:12px;font-weight:600;margin:6px 0 0}.preview-sub{color:var(--muted);font-size:11px;font-weight:400}.micrograph-wrap{position:relative}.micrograph-img{object-fit:cover}.micrograph-technique{background:#10100fa8;border-radius:4px;bottom:5px;color:#f3efe7;font-size:9.5px;letter-spacing:.02em;padding:1px 5px;position:absolute;right:5px}.micrograph-credit{color:var(--muted);font-size:10px;font-weight:400;margin-top:1px;text-decoration:none}.micrograph-credit:hover{text-decoration:underline}.preview-disclaimer{color:var(--muted);font-size:11px;font-style:italic;margin:4px 0 0}.state-hero{border-left:5px solid var(--accent);margin-bottom:12px;padding-left:10px}.state-label{color:var(--muted);font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}.state-value{font-size:21px;font-weight:700}.state-row{margin-bottom:12px}.state-label-row{align-items:center;display:flex;gap:10px;justify-content:space-between;margin-bottom:4px}.level-toggle{display:inline-flex;gap:4px}.chip-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:5px}.chip{border:1px solid var(--border);border-radius:999px;font-size:13px;font-weight:600;padding:4px 11px}.chip-ferrite{background:#eef3e6}.chip-austenite{background:#f3e2c4}.chip-cementite{background:#e3dced}.chip-constituent{background:#17201c;border-color:#17201c;color:#fff}.state-confidence{color:var(--muted);font-size:12px;margin-top:6px}.state-muted{color:var(--muted);font-size:13px;margin-top:4px}.education-notes,.proximity-notes,.assumptions{color:var(--muted);font-size:13px;line-height:1.45;margin:6px 0 0;padding-left:18px}.explanation{font-size:14px;line-height:1.5;margin:4px 0 0}.learnmore-toggle{margin-top:4px;width:100%;text-align:left}.material-panel{display:flex;flex-direction:column;gap:12px}.material-panel h2{margin-bottom:0}.status-control{display:block}.status-header{align-items:baseline;display:flex;font-size:13px;gap:8px;justify-content:space-between;margin-bottom:5px}.status-header strong{color:var(--ink);font-size:15px}.status-range{--fill: 0%;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:linear-gradient(90deg,var(--accent) 0 var(--fill),#d8d1c5 var(--fill) 100%);border-radius:999px;display:block;height:8px;margin:10px 0 4px;outline:none;width:100%}.status-range-temp{background:linear-gradient(90deg,#c4553f 0 var(--fill),#d8d1c5 var(--fill) 100%)}.status-range::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--card-bg);border:3px solid var(--accent);border-radius:999px;box-shadow:0 1px 4px #17201c3d;cursor:pointer;height:20px;width:20px}.status-range::-moz-range-thumb{background:var(--card-bg);border:3px solid var(--accent);border-radius:999px;box-shadow:0 1px 4px #17201c3d;cursor:pointer;height:16px;width:16px}.product-strip{border-bottom:1px solid var(--border);border-top:1px solid var(--border);padding:10px 0 11px}.property-panel{background:#f8f4ed;border:1px solid #ded7cb;border-radius:7px;padding:9px 10px}.property-bars{display:grid;gap:7px;margin-top:8px}.property-row{display:grid;gap:4px}.property-label-row{align-items:baseline;display:flex;gap:8px;justify-content:space-between}.property-label-row span{font-size:12px;font-weight:750}.property-label-row strong{color:var(--muted);font-size:11.5px;font-weight:750;text-align:right}.property-scale{display:grid;gap:2px;grid-template-columns:repeat(10,minmax(0,1fr));height:7px}.property-segment{background:#d8d1c5;border-radius:999px}.property-segment.active{background:#8b3529}.property-note{color:var(--muted);font-size:11.5px;line-height:1.35;margin:8px 0 0}.stiffness-note{border-top:1px solid #ded7cb;padding-top:7px}.property-glossary-link{display:flex;justify-content:flex-start;margin-top:7px}.property-glossary-link .glossary-open-btn{font-size:12px;min-height:30px;padding:4px 9px}.panel-kicker{color:var(--muted);font-size:11px;font-weight:750;letter-spacing:.04em;text-transform:uppercase}.product-band-label{font-size:14px;font-weight:750;margin-top:2px}.product-grid{display:grid;gap:6px;grid-template-columns:repeat(5,minmax(0,1fr));margin-top:8px}.product-tile{align-items:center;background:#f6f0e6;border:1px solid #ded3c1;border-radius:7px;color:var(--ink);display:flex;flex-direction:column;gap:5px;margin:0;min-height:82px;padding:7px 4px 6px;text-align:center}.product-tile figcaption{font-size:11px;font-weight:650;line-height:1.15}.panel-region{border-left:5px solid var(--accent);padding-left:10px}.panel-region-name{font-size:22px;font-weight:800;line-height:1.15;margin:2px 0 5px}.panel-region p{color:var(--muted);font-size:13px;line-height:1.42;margin:0}.phase-summary{display:grid;gap:14px;grid-template-columns:minmax(120px,max-content) minmax(0,1fr);align-items:start}.microstructure-summary{color:var(--muted);font-size:13px;line-height:1.38;margin:5px 0 0}.explanation-block{border-top:1px solid var(--border);padding-top:10px}.explanation.scientific{font-size:13.5px}.glossary-inline{display:flex;justify-content:flex-end;margin-top:9px}.panel-glossary-end{border-top:1px solid var(--border);justify-content:flex-start;margin-top:0;padding-top:10px}.glossary-open-btn{background:#fffdfa;border:1px solid var(--border);border-radius:7px;color:var(--ink);cursor:pointer;font-size:13px;font-weight:750;min-height:34px;padding:5px 10px}.glossary-open-btn:hover,.glossary-close:hover,.glossary-level-btn:hover,.glossary-term-btn:hover{border-color:var(--accent)}.glossary-modal-layer{align-items:center;display:flex;top:0;right:0;bottom:0;left:0;justify-content:center;padding:22px;position:fixed;z-index:50}.glossary-backdrop{background:#16120e57;border:0;cursor:default;top:0;right:0;bottom:0;left:0;padding:0;position:absolute}.glossary-modal{background:var(--card-bg);border:1px solid rgba(115,96,70,.32);border-radius:10px;box-shadow:0 24px 70px #14100c47;max-height:min(760px,calc(100vh - 44px));max-width:920px;overflow:hidden;padding:16px;position:relative;width:min(920px,calc(100vw - 44px))}.glossary-close{align-items:center;background:#fffdfa;border:1px solid var(--border);border-radius:999px;color:var(--ink);cursor:pointer;display:inline-flex;font-size:22px;font-weight:600;height:34px;justify-content:center;line-height:1;position:absolute;right:13px;top:13px;width:34px}.glossary-header{margin:0 42px 13px 0}.glossary-header h3{font-size:20px;line-height:1.2;margin:0 0 5px}.glossary-header p{color:var(--muted);font-size:13px;line-height:1.42;margin:0}.glossary-body{display:grid;gap:14px;grid-template-columns:minmax(220px,.9fr) minmax(300px,1.4fr);min-height:390px}.glossary-list{border:1px solid var(--border);border-radius:8px;display:flex;flex-direction:column;gap:4px;max-height:520px;overflow:auto;padding:7px}.glossary-term-btn{background:#f8f4ed;border:1px solid transparent;border-radius:7px;color:var(--ink);cursor:pointer;display:flex;flex-direction:column;gap:2px;padding:8px 9px;text-align:left}.glossary-term-btn.active{background:var(--ink);border-color:var(--ink);color:#fff}.glossary-term-btn span{font-size:13px;font-weight:750;line-height:1.2}.glossary-term-btn small{color:inherit;font-size:10.5px;line-height:1.2;opacity:.74}.glossary-entry{background:#f8f4ed;border:1px solid var(--border);border-radius:8px;min-height:220px;padding:15px}.glossary-entry h4{font-size:24px;line-height:1.15;margin:3px 0 8px}.glossary-mini-preview{background:#ddd;border:2px solid #272727;border-radius:7px;display:block;height:auto;margin:8px 0 11px;max-width:260px;width:min(100%,260px)}.glossary-level-toggle{display:grid;gap:5px;grid-template-columns:repeat(3,minmax(0,1fr));margin-bottom:11px;max-width:420px}.glossary-level-btn{background:#fffdfa;border:1px solid var(--border);border-radius:7px;color:var(--ink);cursor:pointer;font-size:12px;font-weight:750;min-height:34px;padding:5px 7px}.glossary-level-btn.active{background:var(--ink);border-color:var(--ink);color:#fff}.glossary-entry p{font-size:15px;line-height:1.58;margin:0;min-height:118px}.applications-block{background:#f7f4ed;border:1px solid #ded7cb;border-radius:7px;padding:9px 10px}.application-list{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:7px 0 0;padding:0}.application-list li{background:#fffdfa;border:1px solid var(--border);border-radius:999px;font-size:12px;font-weight:600;line-height:1.2;padding:5px 9px}@media(max-width:520px){.platform-nav{gap:8px;padding:9px}.material-selector,.module-roadmap{align-items:stretch;flex-direction:column;gap:6px}.platform-label,.roadmap-title{line-height:1.2}.material-option,.roadmap-item{min-height:28px;padding:4px 8px}.platform-modal-layer{align-items:flex-start;padding:48px 10px 10px}.platform-modal{width:100%}.about-modal-layer{align-items:flex-start;padding:38px 10px 10px}.about-modal{max-height:calc(100vh - 48px);padding:16px 16px 17px;width:100%}.diagram-help-card{max-width:calc(100vw - 46px);padding:7px;right:0;top:0;transform:none;width:min(230px,calc(100vw - 46px))}.diagram-help-title{font-size:11px}.diagram-help-actions{flex-wrap:wrap}.diagram-help-btn{font-size:11px;min-height:28px;padding:3px 7px}.diagram-help-modal-layer{align-items:flex-start;padding:44px 10px 10px}.diagram-help-modal{max-height:calc(100% - 12px);padding:14px 14px 15px;width:100%}.glossary-modal-layer{align-items:stretch;padding:10px}.glossary-modal{max-height:calc(100vh - 20px);overflow:auto;padding:13px;width:calc(100vw - 20px)}.glossary-inline{justify-content:stretch}.glossary-open-btn{width:100%}.property-glossary-link .glossary-open-btn{width:auto}.glossary-header{margin-right:40px}.glossary-header h3{font-size:18px}.glossary-body{display:flex;flex-direction:column;min-height:0}.glossary-list{flex-direction:row;max-height:none;overflow-x:auto;padding:6px}.glossary-term-btn{flex:0 0 160px}.glossary-entry{padding:13px}.glossary-entry h4{font-size:21px}.glossary-mini-preview{max-width:220px}.glossary-level-toggle{max-width:none}.glossary-entry p{font-size:14px;min-height:130px}.product-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.phase-summary{grid-template-columns:1fr}.state-label-row{align-items:stretch;flex-direction:column}.level-toggle{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.level-btn{padding-left:6px;padding-right:6px}}.app-footer{color:var(--muted);font-size:12px;margin-top:16px;text-align:center}.app-footer p{margin:3px 0}.footer-disclaimer{font-size:11.5px;line-height:1.35;margin-left:auto!important;margin-right:auto!important;max-width:860px}.app-footer a{align-items:center;color:var(--ink);display:inline-flex;font-weight:700;gap:12px;text-decoration:none}.app-footer a:hover,.app-footer a:focus-visible{text-decoration:underline}.linkedin-mark{color:#0a66c2;height:16px;width:16px}.footer-about{margin-top:7px}.about-open-btn{background:transparent;border:0;color:var(--muted);cursor:pointer;font:inherit;font-size:12px;font-weight:750;padding:2px 5px;text-decoration:underline;text-underline-offset:3px}.about-open-btn:hover,.about-open-btn:focus-visible{color:var(--ink)}.about-modal-layer{align-items:center;display:flex;top:0;right:0;bottom:0;left:0;justify-content:center;padding:22px;position:fixed;z-index:70}.about-backdrop{background:#16120e57;border:0;cursor:default;top:0;right:0;bottom:0;left:0;padding:0;position:absolute}.about-modal{background:var(--card-bg);border:1px solid rgba(115,96,70,.32);border-radius:10px;box-shadow:0 24px 70px #14100c47;max-height:calc(100vh - 44px);max-width:640px;overflow:auto;padding:18px 20px 19px;position:relative;text-align:left;width:min(640px,calc(100vw - 44px))}.about-modal h3{font-size:20px;line-height:1.2;margin:0 42px 12px 0}.about-modal p{color:var(--muted);font-size:14px;line-height:1.55;margin:0 0 10px}.about-modal p:last-child{margin-bottom:0}.about-disclaimer{background:#f8f4ed;border:1px solid var(--border);border-radius:7px;color:var(--ink)!important;font-size:13px!important;margin:12px 0 0!important;padding:9px 10px}.about-modal a{color:var(--ink);font-weight:750;text-decoration:underline;text-underline-offset:3px}.about-feedback{border-top:1px solid var(--border);margin-top:14px;padding-top:12px}.about-feedback strong{color:var(--ink)}.about-contact-label{color:var(--ink)!important;font-weight:750;margin-bottom:4px!important}.about-close{align-items:center;background:#fffdfa;border:1px solid var(--border);border-radius:999px;color:var(--ink);cursor:pointer;display:inline-flex;font-size:22px;font-weight:600;height:34px;justify-content:center;line-height:1;position:absolute;right:13px;top:13px;width:34px}