:root{
  --bg:#080b11; --panel:#0f1420; --panel2:#141b2a; --line:#273247; --text:#edf4ff;
  --muted:#9aa9bd; --purple:#9b7cff; --teal:#47e6c1; --red:#ff6b7a; --amber:#ffc857;
  --shadow:0 18px 50px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(circle at 15% 0%,#182037 0,#080b11 36%),var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;min-height:100vh}
.noise{position:fixed;inset:0;pointer-events:none;opacity:.14;background-image:linear-gradient(rgba(255,255,255,.015) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.015) 1px,transparent 1px);background-size:22px 22px}
.topbar{position:sticky;top:0;z-index:20;height:82px;display:flex;align-items:center;justify-content:space-between;padding:14px 28px;border-bottom:1px solid var(--line);background:rgba(8,11,17,.88);backdrop-filter:blur(16px)}
.brand{display:flex;align-items:center;gap:12px}.brandmark{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;font-weight:900;color:#0a0d13;background:linear-gradient(135deg,var(--teal),var(--purple));box-shadow:0 0 28px rgba(71,230,193,.18)}
.eyebrow{font-size:10px;letter-spacing:.22em;color:var(--teal);font-weight:800}.brandtitle{font-size:16px;font-weight:850;letter-spacing:.03em}
.progressWrap{width:min(340px,36vw)}.progressMeta{font-size:11px;color:var(--muted);display:flex;justify-content:space-between;margin-bottom:7px}.progressTrack{height:7px;background:#151b27;border-radius:999px;overflow:hidden;border:1px solid #20293a}.progressBar{height:100%;width:0;background:linear-gradient(90deg,var(--teal),var(--purple));transition:width .3s ease}
.appShell{display:grid;grid-template-columns:260px 1fr;min-height:calc(100vh - 82px)}
.sidebar{position:sticky;top:82px;height:calc(100vh - 82px);padding:24px 16px;border-right:1px solid var(--line);background:rgba(10,14,22,.65);overflow:auto}.sideLabel{font-size:10px;letter-spacing:.2em;color:#6f7f96;font-weight:900;padding:0 10px 12px}.navBtn{width:100%;border:0;background:transparent;color:#aebbd0;text-align:left;padding:12px 12px;border-radius:12px;margin:3px 0;font-weight:700;cursor:pointer;display:flex;gap:10px;align-items:center}.navBtn:hover{background:#151c2a;color:white}.navBtn.active{background:linear-gradient(90deg,rgba(155,124,255,.18),rgba(71,230,193,.09));color:white;outline:1px solid rgba(155,124,255,.24)}.navIndex{font-size:10px;color:var(--teal);width:20px}.navDone::after{content:'✓';margin-left:auto;color:var(--teal)}
.ghostBtn{width:100%;margin-top:18px;padding:10px 12px;border-radius:10px;border:1px solid #2b3547;background:transparent;color:#8391a6;cursor:pointer}
.main{padding:34px clamp(22px,4vw,56px) 70px;max-width:1180px;width:100%}.heroCard{padding:30px;border:1px solid #2b3550;border-radius:22px;background:linear-gradient(135deg,rgba(155,124,255,.14),rgba(71,230,193,.05));box-shadow:var(--shadow);margin-bottom:22px}.moduleKicker{color:var(--teal);font-size:11px;font-weight:900;letter-spacing:.18em}.moduleTitle{font-size:clamp(32px,5vw,58px);line-height:.98;margin:10px 0 12px;letter-spacing:-.04em}.moduleIntro{color:#b7c4d6;font-size:17px;line-height:1.6;max-width:780px;margin:0}
.lessonGrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:20px 0}.lessonCard,.activity{border:1px solid var(--line);background:linear-gradient(180deg,#111725,#0e131e);border-radius:18px;padding:20px;box-shadow:0 12px 34px rgba(0,0,0,.18)}.lessonCard h3{margin:0 0 8px;font-size:14px;color:var(--teal);letter-spacing:.06em;text-transform:uppercase}.lessonCard p,.lessonCard li{color:#c5d0df;line-height:1.55}.lessonCard ul{margin:8px 0 0;padding-left:20px}
.activityStack{display:flex;flex-direction:column;gap:16px}.activityHead{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:13px}.activityTag{font-size:10px;font-weight:900;letter-spacing:.16em;color:var(--purple)}.activity h2{font-size:21px;margin:5px 0 0}.activityPrompt{color:#b8c5d6;line-height:1.55;margin-bottom:14px}.points{font-size:11px;color:#7f8ca1;white-space:nowrap}
.optionList{display:grid;gap:9px}.option{display:flex;align-items:flex-start;gap:10px;padding:12px 13px;border:1px solid #2a3448;border-radius:12px;background:#0c111a;cursor:pointer;color:#d5deeb}.option:hover{border-color:#465674}.option input{margin-top:3px}.option.correct{border-color:rgba(71,230,193,.8);background:rgba(71,230,193,.08)}.option.wrong{border-color:rgba(255,107,122,.75);background:rgba(255,107,122,.08)}
.inlineRow{display:flex;gap:9px;align-items:center;flex-wrap:wrap}.textInput,.selectInput,.textarea{width:100%;background:#0a0f18;color:white;border:1px solid #303b50;border-radius:11px;padding:12px 13px;font:inherit;outline:none}.textInput:focus,.selectInput:focus,.textarea:focus{border-color:var(--purple);box-shadow:0 0 0 3px rgba(155,124,255,.12)}.textarea{min-height:130px;resize:vertical;line-height:1.5}.sentenceRow{display:grid;grid-template-columns:minmax(180px,1fr) minmax(220px,1.4fr);gap:10px;align-items:center;margin:9px 0}.sentenceLabel{color:#c5d0df;line-height:1.4}
.primaryBtn,.secondaryBtn,.checkBtn,.revealBtn{border:0;border-radius:11px;padding:11px 16px;font-weight:850;cursor:pointer}.primaryBtn,.checkBtn{background:linear-gradient(135deg,var(--purple),#7557df);color:#fff}.secondaryBtn,.revealBtn{background:#182131;color:#cbd5e4;border:1px solid #2c3850}.checkBtn{margin-top:14px}.feedback{margin-top:12px;padding:11px 13px;border-radius:10px;display:none;line-height:1.45}.feedback.show{display:block}.feedback.ok{background:rgba(71,230,193,.09);border:1px solid rgba(71,230,193,.35);color:#a9f5e3}.feedback.bad{background:rgba(255,107,122,.08);border:1px solid rgba(255,107,122,.35);color:#ffc2ca}.modelBox{display:none;margin-top:12px;padding:14px;border-left:3px solid var(--teal);background:#0b111a;color:#d6e2ef;line-height:1.55}.modelBox.show{display:block}
.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{border:1px solid #344057;background:#0d131d;color:#cdd8e6;border-radius:999px;padding:8px 11px;font-size:13px;cursor:pointer}.chip.selected{background:rgba(155,124,255,.17);border-color:var(--purple);color:white}.sortGrid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.sortCol{border:1px dashed #334057;border-radius:14px;padding:12px;min-height:130px}.sortCol h4{margin:0 0 10px;color:var(--teal);font-size:12px;text-transform:uppercase;letter-spacing:.08em}.dragItem{padding:9px 10px;border-radius:10px;background:#141c2a;border:1px solid #2b364a;margin:6px 0;cursor:grab;font-size:13px}.dragItem.dragging{opacity:.45}.sortCol.over{outline:2px solid rgba(71,230,193,.45)}
.caseFile{border:1px solid #3a465f;background:#0b1019;border-radius:16px;padding:18px;line-height:1.6;color:#cbd6e5}.caseFile strong{color:#fff}.caseFile .stamp{display:inline-block;font-size:10px;letter-spacing:.18em;color:var(--amber);border:1px solid rgba(255,200,87,.4);padding:4px 8px;border-radius:999px;margin-bottom:10px}.moduleFooter{display:flex;justify-content:space-between;margin-top:26px;padding-top:18px;border-top:1px solid var(--line)}
.miniTable{width:100%;border-collapse:collapse;font-size:13px}.miniTable th,.miniTable td{border:1px solid #2a354a;padding:10px;text-align:left}.miniTable th{color:var(--teal);background:#111827}
.hidden{display:none!important}
@media(max-width:840px){.appShell{grid-template-columns:1fr}.sidebar{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line);padding:10px 14px}.sideLabel{display:none}#moduleNav{display:flex;overflow:auto;gap:6px}.navBtn{min-width:max-content;width:auto}.ghostBtn{display:none}.main{padding:24px 15px 55px}.lessonGrid{grid-template-columns:1fr}.sortGrid{grid-template-columns:1fr}.topbar{height:auto;align-items:flex-start;gap:14px;flex-direction:column;padding:14px 16px}.progressWrap{width:100%}.sidebar{top:auto}.sentenceRow{grid-template-columns:1fr}}