:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#22252b;background:#fafaf9;font-size:16px;line-height:1.6;--muted:#666b73;--line:#dedfdf;--accent:#1757a6}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button{cursor:pointer;border:1px solid #22252b;background:#22252b;color:#fff;padding:10px 18px;border-radius:7px;font-weight:600;line-height:1.4}button:hover{background:#3d4148}button.secondary{background:transparent;color:#34383e;border-color:#c5c9cc}button.small{padding:6px 11px;font-size:14px}button:disabled{opacity:.45;cursor:default}a{color:#1757a6;text-underline-offset:3px}header{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:20px 38px;background:#fff;border-bottom:1px solid var(--line)}.brand{color:#25282d;text-decoration:none;font-size:21px;font-weight:700;letter-spacing:-.7px}.brand span{font-weight:400;color:#626872}#account{display:flex;align-items:center;gap:14px;font-size:14px}.shell{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:calc(100vh - 81px)}aside{border-right:1px solid var(--line);padding:30px 22px;background:#f6f6f4}aside button{width:100%;text-align:left}aside h2{font-size:12px;text-transform:uppercase;letter-spacing:1.6px;margin-top:30px;color:var(--muted)}.case-link{display:block;background:none;border:0;border-radius:0;color:#41464f;padding:14px 10px;border-bottom:1px solid #e5e6e5;font-size:14px;font-weight:500}.case-link.active{color:#1757a6;background:#eef4fd}.case-link:hover{background:#f0f4fa}.case-link small{display:block;color:#676c74;font-size:12px}main{padding:40px 5vw 80px;max-width:1350px;width:100%;min-width:0}h1{font-size:30px;line-height:1.2;letter-spacing:-.8px;margin:8px 0 16px;font-weight:650}h2{font-size:20px;line-height:1.35;letter-spacing:-.35px;margin:28px 0 15px}h3{font-size:17px;margin:22px 0 8px}p{margin:10px 0 16px}.muted,small{color:var(--muted)}.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:1.5px;color:#50615c}.intro{max-width:720px;font-size:18px;color:#626872}.row{display:flex;flex-wrap:wrap;align-items:center;gap:12px}.spread{justify-content:space-between}.divider{border-top:1px solid var(--line);margin-top:28px;padding-top:24px}.login{max-width:490px;margin:8vh auto;padding:28px}.login h1{font-size:34px}.field{display:block;margin:15px 0}.field>span{display:block;font-size:14px;font-weight:550;margin-bottom:6px}input:not([type=checkbox]),textarea,select{display:block;width:100%;background:#fff;color:#22252b;border:1px solid #c5c9cc;border-radius:6px;padding:10px 12px;min-height:44px}textarea{min-height:110px;resize:vertical}input:focus,textarea:focus,select:focus,button:focus-visible{outline:2px solid #377b70;outline-offset:3px}.help{font-size:13px;color:var(--muted);margin:4px 0 15px}.warning{border-left:3px solid #b0822e;padding:10px 16px;color:#6c552c;background:#f7f3eb;font-size:14px}.success{color:#235d4d}.error{color:#9a342e}#notice{position:sticky;top:0;z-index:5;padding:12px 38px;background:#edf2ee;border-bottom:1px solid #cddbd0;font-size:14px}#notice.error{background:#fff0ee;border-color:#e9c7c3}.source{padding:16px 0;border-bottom:1px solid #e3e4e3}.source strong{overflow-wrap:anywhere}.source small{display:block}.tabs{display:flex;gap:20px;overflow:auto;border-bottom:1px solid var(--line);margin:28px 0 20px}.tabs button{white-space:nowrap;background:none;color:var(--muted);border:0;border-radius:0;padding:12px 0;font-size:14px;font-weight:500}.tabs button.active{border-bottom:2px solid #1757a6;color:#1757a6}.entry{padding:8px 0 22px;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.tag{display:inline-block;font-size:12px;color:#53625e;background:#edf1ed;border-radius:3px;padding:3px 7px;margin:0 7px 6px 0}.entry p{white-space:pre-wrap}.quote{font-size:14px;border-left:2px solid #cad4ce;margin:10px 0;padding:8px 14px;white-space:pre-wrap}.quote button{display:block;margin-top:8px}.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:30px 0}.fact strong{display:block;font-size:24px;font-weight:500}.fact span{font-size:13px;color:var(--muted)}.empty{padding:30px 0;color:var(--muted)}dialog{border:1px solid var(--line);border-radius:10px;padding:26px;width:min(820px,94vw);max-height:90vh;overflow:auto;color:#22252b}dialog::backdrop{background:rgba(22,25,28,.3)}dialog h2{margin-top:0}dialog #close-modal{margin-top:20px}.page-text{white-space:pre-wrap;overflow-wrap:anywhere;background:#fafafa;padding:20px;font-size:15px;border:1px solid var(--line);max-height:56vh;overflow:auto}.check{display:flex;gap:12px;align-items:flex-start;margin:16px 0;font-size:14px}.check input{margin-top:7px;flex:none}ul{padding-left:22px}li{margin:8px 0}.loading{padding:40px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}.nowrap{white-space:nowrap}.limits{max-width:190px}.exports a{margin-right:20px;font-size:14px}#busy{margin:16px 0}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin:40px 0}.steps strong{display:block;font-size:17px;margin-bottom:8px}.steps p{font-size:14px;color:#696e74}.subtle{font-size:13px;color:#747980}.prewrap{white-space:pre-wrap;overflow-wrap:anywhere}@media(max-width:800px){header{padding:17px 20px}.shell{grid-template-columns:1fr}aside{border-right:0;border-bottom:1px solid var(--line);padding:18px 20px}aside h2{margin-top:18px}.case-list{display:flex;overflow:auto;gap:8px}.case-link{min-width:165px;max-width:220px;border-bottom:0}main{padding:28px 22px 60px}h1{font-size:27px}.form-grid,.steps{grid-template-columns:1fr}.steps{gap:8px;margin:25px 0}.facts{gap:12px}.fact strong{font-size:21px}#account .username{display:none}#notice{padding:12px 20px}.login{margin:3vh auto;padding:24px}}

/* Guided case workspace */
main{max-width:1440px;padding-top:30px}
.case-objective{max-width:850px;margin:12px 0 20px}
.case-objective summary{cursor:pointer;color:var(--accent);font-weight:600;padding:8px 0}
.case-objective .intro{font-size:16px}
.facts{margin:20px 0;gap:16px}
.fact strong{font-size:22px}
.case-guide{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0 24px;margin-bottom:22px}
.case-guide h2{margin:18px 0 8px;font-size:23px}
.case-guide p{max-width:780px;color:var(--muted)}
.case-progress{display:flex;flex-wrap:wrap;gap:8px 24px;list-style:none;padding:0;margin:0}
.case-progress li{color:var(--muted);font-size:13px;margin:0;padding:5px 0}
.case-progress .current{color:var(--accent);font-weight:700;border-bottom:2px solid var(--accent)}
.download-link{display:inline-block;padding:10px 18px;border:1px solid var(--accent);border-radius:7px;text-decoration:none;font-weight:600}
.tabs{gap:8px;flex-wrap:wrap;overflow:visible}
.tabs button{padding:10px 12px;min-height:44px}
.tabs button.active{background:#edf2ee;border-radius:6px 6px 0 0}
.entry{max-width:900px;padding:12px 0 24px}
dialog{width:min(760px,94vw);padding:28px}
.check{padding:12px 0;border-bottom:1px solid var(--line);margin:0;line-height:1.65}
input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent)}
@media(max-width:600px){header{flex-wrap:wrap;gap:10px}#account{flex-wrap:wrap}.facts{grid-template-columns:1fr 1fr}.fact:last-child{grid-column:1/-1}.case-progress{display:grid;grid-template-columns:1fr 1fr;gap:6px 16px}.case-guide .row>*{flex:1 1 auto;text-align:center}.tabs{gap:4px}.tabs button{font-size:13px;padding:9px 8px}}

/* Navegação verificável de conclusões e evidências; sem efeitos decorativos. */
.evidence-actions{margin:16px 0 0;gap:8px}
.entry>button.small{margin:0 8px 8px 0}
.entry:focus{outline:2px solid #1757a6;outline-offset:6px}
@media(prefers-reduced-motion:reduce){html:focus-within{scroll-behavior:auto}}

.evidence-diagram{max-width:100%;overflow-x:auto;padding:18px 0 10px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.evidence-diagram svg{display:block;max-width:none}
.graph-relations{margin-top:18px}
.graph-relations summary{cursor:pointer;color:var(--accent);font-weight:600;padding:8px 0}