:root{--ink:#162e3c;--muted:#607380;--paper:#f4f7f8;--line:#dce5e8;--teal:#087e8b;--navy:#122e3f;--lime:#cced83;--red:#af3545}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font:16px/1.6 system-ui,Segoe UI,sans-serif}button,input,select,textarea{font:inherit}button,a,input,textarea,select{outline-offset:4px}button{cursor:pointer;border:0;border-radius:9px;padding:10px 18px;font-weight:650;background:var(--teal);color:white}button:hover{filter:brightness(.94)}button:disabled{opacity:.5;cursor:not-allowed}button.secondary{background:#e9eff1;color:var(--ink)}button.danger{background:#f9e5e8;color:var(--red)}a{color:var(--teal)}input,select,textarea{border:1px solid #bccdd4;border-radius:8px;padding:10px;width:100%;background:white;color:var(--ink)}textarea{min-height:130px;resize:vertical}label{display:block;font-size:.91rem;font-weight:650;margin:12px 0}label input,label select,label textarea{display:block;margin-top:5px;font-weight:400}input[type=checkbox]{width:auto;display:inline;margin-right:8px}h1{font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.15;letter-spacing:-.035em;margin:12px 0 18px}h2{font-size:1.4rem;line-height:1.3}h3{font-size:1.05rem}p{margin:10px 0 18px}.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-size:.74rem;font-weight:800;color:var(--teal)}.muted{color:var(--muted);font-size:.93rem}.shell{display:grid;grid-template-columns:240px minmax(0,1fr);min-height:100vh}aside{background:var(--navy);color:white;padding:30px 20px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}.brand{font-weight:800;font-size:1.2rem;line-height:1.25;margin:0 12px 35px}.brand span{display:block;font-size:.7rem;letter-spacing:.17em;color:var(--lime);margin-top:10px}.nav{background:none;color:#c7d6dd;width:100%;text-align:left;margin:4px 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.card{margin:0}.hero{background:var(--navy);color:white;padding:30px;border-radius:16px;margin-bottom:28px}.hero .eyebrow{color:var(--lime)}.hero p{color:#c5d9e3;max-width:720px}.row{display:flex;align-items:center;justify-content:space-between;gap:14px}.actions{display:flex;gap:9px;flex-wrap:wrap;margin:16px 0}.rule{border-top:1px solid var(--line);margin:20px 0}.stat{font-size:2rem;font-weight:800}.activity-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 0;border-top:1px solid var(--line)}.activity-row small{display:block;color:var(--muted)}.lesson-content{max-width:900px;line-height:1.85}.lesson-content .card{box-shadow:none}.lesson-content .grid{display:block}.lesson-content h2{margin-top:35px}.lesson-content h3{font-size:1.12rem;margin-top:24px}.lesson-content .hidden-def{display:block!important}.lesson-content pre,pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#142e3f;color:#dcebf0;padding:20px;border-radius:10px;font-size:.9rem;line-height:1.6}.lesson-content pre{user-select:none;-webkit-user-select:none}.lesson-content code{font-size:.9em}.notice{padding:14px 18px;border-left:4px solid var(--teal);background:#e8f5f4;border-radius:5px;margin:16px 0}.error{background:#fff0f1;color:#942839}.question{padding:22px 0;border-bottom:1px solid var(--line)}.question>label{font-size:1rem}.option{font-weight:400;display:flex;gap:9px;align-items:flex-start;margin:7px 0;padding:9px;border:1px solid var(--line);border-radius:7px}.option input{width:auto;margin-top:6px}.editor-question{border:1px solid var(--line);padding:18px;border-radius:10px;margin:16px 0}table{border-collapse:collapse;width:100%;font-size:.9rem}th,td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--muted);font-size:.76rem;text-transform:uppercase;letter-spacing:.04em}.table-wrap{overflow:auto}.login{max-width:480px;margin:8vh auto;padding:32px}.login .brand{color:var(--ink);margin:0 0 30px}.login .brand span{color:var(--teal)}#toast{position:fixed;bottom:24px;right:24px;background:var(--navy);color:white;border-radius:9px;padding:12px 20px;max-width:440px;display:none;z-index:100}.split{display:grid;grid-template-columns:1fr 300px;gap:24px}.side-note{height:max-content;position:sticky;top:24px}.progress{height:6px;background:#e4ecef;border-radius:8px;overflow:hidden}.progress>span{display:block;height:100%;background:var(--teal)}details{margin:15px 0}summary{cursor:pointer;font-weight:650}.badge-num{display:inline-grid;place-items:center;background:#e6f4f2;color:var(--teal);border-radius:9px;width:38px;height:38px;font-weight:800;margin-right:12px}.feedback-score{font-size:2rem;font-weight:800;color:var(--teal)}.sticky-actions{position:sticky;bottom:0;background:#ffffffef;border-top:1px solid var(--line);padding:14px 0}.print-only{display:none}@media(max-width:850px){.shell{grid-template-columns:1fr}aside{height:auto;position:relative;padding:18px}.brand{margin:0 0 12px}.nav{width:auto}.aside-bottom{margin:8px 0 0;padding:0;display:flex;gap:20px;align-items:center}main{padding:24px 18px}.grid,.grid.three,.split{grid-template-columns:1fr}.side-note{position:static}.row{flex-wrap:wrap}}@media print{aside,.topline,.actions,button,.sticky-actions,.no-print,#toast{display:none!important}.shell{display:block}main{padding:0;max-width:100%}.card{border:0;box-shadow:none;padding:5px}.grid,.split{display:block}.lesson-content{max-width:100%}.print-only{display:block}textarea{overflow:visible}.print-answer{white-space:pre-wrap;border:1px solid #ccc;padding:10px}.hero{color:black;background:white}pre{color:black;background:#eee}.lesson-content pre{user-select:none}}

#fullNotes{display:none}@media print{body.printing-notes #app{display:none!important}body.printing-notes #fullNotes{display:block!important;max-width:none}#fullNotes .hidden-def{display:block!important}}

[hidden]{display:none!important}.nav{display:block;text-decoration:none;border-radius:9px;padding:10px 15px}.nav[aria-current=page]{background:#264658;color:white}body:not(.signed) .shell{display:block}body:not(.signed) main{max-width:650px}#login,#change,#portalMismatch{background:white;padding:28px;border:1px solid var(--line);border-radius:16px}#message:not(:empty){background:#fff0d3;border-radius:9px;padding:12px}#workspace section,#teacherScript{margin:20px 0}#lesson,#activitySection,#javaSection,#evidenceSection,#submitArea,#feedback,#teacherScript:not(:empty){background:white;border:1px solid var(--line);padding:24px;border-radius:14px}#lesson section{padding:0}fieldset{border:1px solid var(--line);border-radius:10px;margin:15px 0;padding:16px}legend{font-weight:700}input[type=radio]{width:auto;display:inline;margin-right:10px}#source{font:14px/1.6 Consolas,monospace;min-height:340px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--line);vertical-align:top}.tableWrap{overflow:auto}pre{white-space:pre-wrap;overflow-wrap:anywhere}.actions{gap:10px;flex-wrap:wrap}.card button{margin:4px}.card .eyebrow{display:block}.fileButton{display:block;background:white;border:1px solid var(--line);border-radius:10px;padding:12px}.fileButton input{border:0;font-size:.85rem}dialog{border:1px solid var(--line);border-radius:16px;max-width:520px;width:95%;padding:25px}dialog::backdrop{background:#122e3faa}#modalError{color:var(--red)}.workspaceMenu{position:sticky;top:0;background:#f4f7f8f5;padding:12px 0;z-index:5}.workspaceMenu button{margin:3px}.gradeTools{display:flex;gap:14px;flex-wrap:wrap;align-items:end}.gradeTools label{min-width:180px}.archiveControl{border-top:1px solid var(--line);margin-top:15px}summary{cursor:pointer;font-weight:700}.pill{margin:4px}#walkControls{padding:12px;background:#e6f4f2;border-radius:10px}
#lessonLayout.notesOpen{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(320px,1fr);gap:20px;align-items:start}#lessonWork{min-width:0}.referencePanel{position:sticky;top:75px;max-height:calc(100vh - 100px);overflow:auto;background:#fff;border:2px solid #087e8b;border-radius:14px;padding:20px;min-width:0}.referencePanel h2{font-size:1.2rem}.referencePanel pre{font-size:13px}.referencePanel table{font-size:13px}.referencePanel th,.referencePanel td{padding:7px}.referencePanel #closeNotes{position:sticky;top:0;z-index:2}main:has(.notesOpen){max-width:1700px;padding-left:25px;padding-right:25px}@media(max-width:1100px){#lessonLayout.notesOpen{display:flex;flex-direction:column}.referencePanel{order:-1;position:relative;top:auto;max-height:50vh;width:100%}#lessonWork{width:100%}}