:root{--navy:#071d34;--blue:#0878a8;--pale:#edf7fc;--line:#cfe0ea;--text:#173247;--muted:#587080;--good:#16764a;--bad:#a52b2b;--white:#fff}*{box-sizing:border-box}body{margin:0;background:#f4f8fb;color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.topbar{background:var(--navy);color:#fff;padding:14px 18px;position:sticky;top:0;z-index:10}.topbar__inner{max-width:1120px;margin:auto;display:flex;align-items:center;gap:18px}.topbar h1{font-size:clamp(1.05rem,3vw,1.55rem);margin:2px 0}.back-link{color:#bdeeff;text-decoration:none;font-weight:800}.eyebrow{margin:0;text-transform:uppercase;letter-spacing:.09em;font-size:.75rem;font-weight:900;color:#2a7799}.topbar .eyebrow{color:#8fd9f5}.level-badge{margin-left:auto;background:#dff4ff;color:#075d87;padding:7px 10px;border-radius:999px;font-weight:900;font-size:.8rem}.page-shell{max-width:1120px;margin:auto;padding:24px 18px 60px}.hero-card,.lesson-panel,.scenario-card,.findings-panel,.decision-card,.results-panel{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 10px 28px rgba(9,40,61,.08)}.hero-card{padding:24px;display:grid;grid-template-columns:1fr 270px;gap:24px;align-items:center}.hero-card h2{font-size:clamp(1.55rem,4vw,2.45rem);margin:.35rem 0}.hero-card p{line-height:1.6;color:var(--muted)}.progress-box{background:var(--pale);padding:16px;border-radius:16px;font-weight:850}.progress-track{height:10px;background:#d5e8f1;border-radius:99px;margin-top:10px;overflow:hidden}.progress-track span{display:block;height:100%;width:0;background:var(--blue);transition:.25s}.lesson-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}.lesson-tab{border:1px solid var(--line);background:#fff;border-radius:14px;padding:13px;font-weight:900;color:var(--text);cursor:pointer}.lesson-tab span{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:#dfeef5;margin-right:7px}.lesson-tab.is-active{background:var(--navy);color:#fff}.lesson-panel{padding:24px}.section-heading h2{margin:.3rem 0 1rem}.section-heading>p:last-child{color:var(--muted)}.step-grid,.concept-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.step-card,.concept-card{border:1px solid var(--line);border-radius:16px;padding:17px;background:#fbfdfe}.step-card h3,.concept-card h3{margin:.45rem 0}.step-card p,.concept-card p{color:var(--muted);line-height:1.5}.step-number,.decision-number{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--blue);color:#fff;font-weight:950}.callout,.knowledge-check{margin:18px 0;padding:17px;border-radius:15px;background:var(--pale);border:1px solid #bdddea}.knowledge-check label{display:block;padding:9px 0;line-height:1.45}.primary-btn,.secondary-btn{border:0;border-radius:12px;padding:12px 16px;font-weight:900;cursor:pointer}.primary-btn{background:var(--blue);color:#fff}.secondary-btn{background:#e7f2f7;color:#075d87;border:1px solid #bdddea}.completion-btn.is-complete{background:var(--good)}.scenario-card,.findings-panel,.decision-card,.results-panel{margin-top:16px;padding:20px}.scenario-top,.findings-header{display:flex;justify-content:space-between;gap:14px;align-items:start}.scenario-card h3,.findings-panel h3{margin:.25rem 0}.dispatch{font-weight:900;color:#075d87}.timeline-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.findings-list{display:grid;gap:9px}.finding-item{display:flex;justify-content:space-between;gap:16px;padding:11px 12px;border-radius:12px;background:#f3f8fb;border:1px solid #deebf1}.finding-item span{text-align:right;color:var(--muted)}.decision-step{display:grid;grid-template-columns:42px 1fr;gap:12px;padding:18px 0;border-bottom:1px solid #e2ecf1}.decision-step:last-of-type{border-bottom:0}.decision-step h3{margin:2px 0 12px}select,textarea{width:100%;border:1px solid #aac8d8;border-radius:12px;padding:12px;font:inherit;color:var(--text);background:#fff}textarea{resize:vertical;line-height:1.5}.helper{font-size:.88rem;color:var(--muted);margin:.45rem 0 0}.classification-list{display:grid;gap:10px}.classification-row{border:1px solid var(--line);border-radius:14px;padding:12px}.classification-row p{margin:0 0 9px;font-weight:800}.choice-row{display:flex;gap:8px;flex-wrap:wrap}.choice input{position:absolute;opacity:0}.choice span{display:block;border:1px solid #aac8d8;border-radius:999px;padding:8px 12px;font-weight:800;cursor:pointer}.choice input:checked+span{background:var(--navy);color:#fff;border-color:var(--navy)}.submit-btn{margin-top:18px;width:100%;font-size:1rem}.results-panel{display:grid;grid-template-columns:110px 1fr;gap:20px}.score-ring{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;background:var(--navy);color:#fff;font-weight:950;font-size:1.35rem}.results-panel li{margin:.45rem 0}.model-doc{margin:14px 0;padding:14px;border-left:5px solid var(--blue);background:var(--pale);border-radius:10px}.model-doc p{line-height:1.55}.feedback-text{font-weight:800}.disclaimer{text-align:center;color:var(--muted);font-size:.85rem;margin-top:24px}@media(max-width:820px){.hero-card{grid-template-columns:1fr}.step-grid,.concept-grid{grid-template-columns:1fr 1fr}.timeline-grid{grid-template-columns:1fr}}@media(max-width:580px){.page-shell{padding:14px 10px 40px}.lesson-panel,.hero-card,.scenario-card,.findings-panel,.decision-card,.results-panel{padding:16px;border-radius:16px}.lesson-tabs{gap:6px}.lesson-tab{font-size:.78rem;padding:10px 5px}.lesson-tab span{display:none}.step-grid,.concept-grid{grid-template-columns:1fr}.decision-step{grid-template-columns:34px 1fr}.results-panel{grid-template-columns:1fr}.score-ring{width:78px;height:78px}.finding-item{flex-direction:column;gap:4px}.finding-item span{text-align:left}.scenario-top{flex-direction:column}.scenario-top button{width:100%}}