:root{color-scheme:light;--navy:#142947;--blue:#2159bd;--ink:#1c2e46;--muted:#5c6e84;--bg:#f3f6fa;--card:#fff;--stroke:#dce4ed;--green:#14834b;--green-bg:#ecf9f0;--amber:#ab6c10;--amber-bg:#fff6e5;--red:#b94543;--shadow:0 5px 24px #172e4c0a;--fontscale:1}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--bg);font:calc(16px * var(--fontscale))/1.55 system-ui,-apple-system,'Segoe UI',Arial,sans-serif}h1,h2,h3,h4,p{margin-top:0}h1{font-size:clamp(1.65rem,3vw,2.25rem);line-height:1.2}h2{font-size:1.4rem;line-height:1.3}h3{font-size:1.12rem;margin-bottom:10px}h4{font-size:1rem;margin-bottom:8px}a{color:var(--blue)}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #79b5ff;outline-offset:2px}label{display:block;font-weight:750;font-size:.89rem;margin:10px 0 5px}.muted{color:var(--muted)}.small{font-size:.85rem}.tiny{font-size:.73rem}.bold{font-weight:760}.badge{font-size:.73rem;font-weight:800;border-radius:100px;padding:5px 10px;background:#eef3fb;color:#435a77;display:inline-block}.badge.green{color:var(--green);background:var(--green-bg)}.badge.amber{color:#825108;background:var(--amber-bg)}.badge.blue{color:var(--blue);background:#edf3ff}.badge.red{color:var(--red);background:#fff0ef}.btn{display:inline-flex;gap:7px;align-items:center;justify-content:center;border-radius:10px;background:#fff;border:1px solid var(--stroke);padding:9px 13px;color:var(--ink);font-weight:720;font-size:.9rem;min-height:39px;transition:background .12s}.btn:hover{background:#eaf1fb}.btn.primary{background:var(--blue);color:white;border-color:var(--blue)}.btn.primary:hover{background:#194898}.btn.green{background:var(--green);color:white;border-color:var(--green)}.btn.danger{border-color:#f0beb9;color:#a9322a;background:#fff7f5}.btn.slim{padding:5px 9px;min-height:30px;font-size:.78rem}.btn.ghost{background:transparent;border-color:transparent}.btn.selected{border-color:#76a2ef;background:#eaf2ff;color:#174ba7}.btnrow{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.fill{width:100%}.input,textarea,select{width:100%;border-radius:10px;border:1px solid #c9d4e3;background:#fff;padding:11px;color:var(--ink)}textarea{min-height:90px;resize:vertical}select{height:43px}.card{background:var(--card);border:1px solid var(--stroke);border-radius:17px;padding:22px;box-shadow:var(--shadow);margin-bottom:15px}.card.compact{padding:14px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:13px}.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,320px);gap:18px}.row{display:flex;justify-content:space-between;gap:12px;align-items:center;flex-wrap:wrap}.stack{display:grid;gap:12px}.rule{height:1px;background:var(--stroke);margin:16px 0}.header{background:var(--navy);color:white;padding:12px clamp(16px,4vw,48px);display:flex;align-items:center;justify-content:space-between;gap:15px;position:sticky;top:0;z-index:20;box-shadow:0 4px 20px #14294730}.headbrand{display:flex;align-items:center;gap:12px;cursor:pointer}.logo{height:55px;width:55px;object-fit:contain;background:white;border-radius:12px;padding:3px}.brandname{font-size:1.18rem;line-height:1.18;font-weight:830}.brandsub{color:#b6c9e4;font-size:.76rem}.header .btn{border-color:#405b82;background:#243d60;color:#eef5ff}.header .btn:hover{background:#35557e}.container{max-width:1250px;margin:0 auto;padding:26px clamp(15px,3vw,35px) 100px}.intro{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}.intro p{margin:6px 0;color:var(--muted)}.login-grid{max-width:980px;margin:35px auto;display:grid;grid-template-columns:1fr 1fr;gap:22px}.hero{background:linear-gradient(135deg,#172f56,#254e81);color:#fff;border-radius:18px;padding:26px;margin-bottom:20px}.hero .small{color:#d6e3f5}.hero .btn{background:#fff;color:var(--blue)}.status-dot{display:inline-block;border-radius:50%;height:8px;width:8px;background:#16a34a;margin-right:5px}.course-card{min-height:190px;display:flex;flex-direction:column;align-items:flex-start;gap:9px}.course-card h3{margin:0}.course-card .actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto}.step-line{display:grid;grid-template-columns:37px minmax(0,1fr) auto;align-items:start;gap:12px;padding:13px 0;border-bottom:1px solid #e5eaf0}.step-line:last-child{border:0}.num{border-radius:9px;background:#eaf2ff;color:var(--blue);font-weight:900;text-align:center;padding:5px}.num.green{background:var(--green-bg);color:var(--green)}.num.amber{background:var(--amber-bg);color:var(--amber)}.step-line h4{margin:0 0 4px}.step-line .actions{display:flex;flex-wrap:wrap;gap:5px}.editor-layout{display:grid;grid-template-columns:265px minmax(0,1fr);gap:16px;align-items:start}.course-sidebar{position:sticky;top:85px;max-height:calc(100vh - 105px);overflow:auto}.sidebar-step{width:100%;text-align:left;display:block;border:0;background:transparent;border-radius:9px;padding:9px;margin-top:3px;color:var(--ink)}.sidebar-step:hover{background:#f1f5fb}.sidebar-step.active{background:#eaf2ff;color:var(--blue);font-weight:800}.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.helptext{background:#f0f4fa;border-left:4px solid #7d9bca;border-radius:8px;padding:13px}.speech{font-size:calc(1.16rem * var(--fontscale));font-weight:680;background:#edf3ff;border-left:5px solid var(--blue);padding:21px;border-radius:12px;white-space:pre-wrap;line-height:1.64}.task{white-space:pre-wrap;font-size:calc(1.04rem * var(--fontscale));line-height:1.7}.prompt{border-radius:12px;border:1px solid #cadaf1;background:#f9fbff;margin:11px 0;overflow:hidden}.prompt-label{background:#edf3fd;padding:9px 14px;color:#2454a3;font-size:.81rem;font-weight:800}.prompt-text{padding:18px;white-space:pre-wrap;font-size:calc(1.08rem * var(--fontscale));line-height:1.65;font-weight:650}.prompt-controls{padding:0 14px 12px}.exercise-card{border-left:5px solid var(--blue)}.exercise-card.advanced{border-left-color:var(--green)}.exercise-card.option{border-left-color:#d49a39}.notes{background:var(--green-bg);border:1px solid #b4dfc6;border-radius:12px;padding:14px;margin:15px 0}.notes h4{color:#096238;margin:0 0 8px}.notes textarea{background:#fcfffd}.notes-hidden .notes,.present .notes{display:none!important}.note-gallery{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.note-gallery img{width:90px;height:75px;object-fit:cover;border-radius:7px;cursor:pointer}.resource{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:7px 0}.step-card{scroll-margin-top:90px}.step-card .head{display:flex;gap:10px;align-items:start;justify-content:space-between;flex-wrap:wrap}.statusgrid{display:grid;grid-template-columns:repeat(3,minmax(110px,1fr));gap:8px}.stat{padding:12px;border-radius:11px;background:#f1f5fa}.stat b{display:block;font-size:1.4rem}.progress{background:#e1e8f1;height:8px;overflow:hidden;border-radius:50px}.progress i{height:100%;background:#389969;display:block;transition:width .2s}.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;padding:11px;border-bottom:1px solid var(--stroke);vertical-align:top}.table th{font-size:.8rem;color:var(--muted)}.table-scroll{overflow:auto}.team-answer{white-space:pre-wrap;background:#f6f9fd;padding:12px;border-radius:9px;margin-top:6px}.student-shell{max-width:960px;margin:25px auto;padding:0 15px 70px}.student-top{display:flex;gap:13px;align-items:center;margin-bottom:16px}.student-logo{width:70px;height:70px;object-fit:contain}.waiting{border:2px dashed #a8bcdc;text-align:center;padding:35px;border-radius:17px;background:white}.student-step{border-left:6px solid var(--blue)}.student-step.exercise{border-left-color:var(--green)}.student-step.completed{opacity:.83}.answer-label{font-weight:780;display:block;margin-top:18px}.checkbox{accent-color:var(--green);width:18px;height:18px}.tagline{font-size:.8rem;color:var(--muted)}.modal-shade{position:fixed;inset:0;background:#0f203a88;z-index:50;display:flex;align-items:center;justify-content:center;padding:17px}.modal{width:min(820px,100%);max-height:92vh;overflow:auto;background:white;border-radius:19px;box-shadow:0 20px 70px #07162b5c;padding:22px}.modal h2{margin-bottom:9px}.live-banner{border-radius:13px;border:1px solid #b9d7c7;background:#effaf3;padding:12px 16px;margin-bottom:15px}.section-head{display:flex;justify-content:space-between;align-items:center;gap:9px;flex-wrap:wrap;margin:16px 0 8px}#toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:#182e4c;color:white;padding:10px 18px;border-radius:11px;z-index:100;opacity:0;pointer-events:none;transition:opacity .2s;box-shadow:0 6px 30px #12243a33}#toast.visible{opacity:1}.hidden{display:none!important}details summary{cursor:pointer;font-weight:770;padding:9px 0}details .muted{padding-bottom:10px}.noprint{}.present .course-sidebar,.present .header .navlinks,.present .admin-only,.present .noprint,.present .notes{display:none!important}.present .editor-layout{display:block}.present .container{max-width:1150px}.present .card{box-shadow:none;border-radius:9px}.present .speech{font-size:calc(1.38rem * var(--fontscale))}.present .prompt-text{font-size:calc(1.3rem * var(--fontscale))}
@media(max-width:840px){.login-grid,.split,.editor-layout,.formgrid{grid-template-columns:1fr}.course-sidebar{position:static;max-height:none}.header{padding:8px 12px}.brandname{font-size:1rem}.logo{height:45px;width:45px}.container{padding:18px 12px 80px}.card{padding:17px}.step-line{grid-template-columns:31px 1fr}.step-line .actions{grid-column:2}.statusgrid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:550px){.login-grid{margin:12px auto}.header .navlinks{gap:3px}.header .btn{font-size:.75rem;padding:6px 8px}.brandname{font-size:.92rem}.brandsub{display:none}.statusgrid{grid-template-columns:1fr 1fr}.step-line .actions{gap:4px}.prompt-text{font-size:1rem}}
@media print{.header,.noprint,.notes,.btn,.course-sidebar,#toast,.modal-shade{display:none!important}body{background:white;color:#000}.card{page-break-inside:avoid;box-shadow:none;border:1px solid #bbb;padding:13px}.container{max-width:100%;padding:0}.editor-layout{display:block}.speech,.prompt-text{font-size:13pt}.student-step{page-break-inside:avoid}}

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