: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 0}.nav.active{background:#264658;color:white}.aside-bottom{margin-top:auto;padding-top:25px;font-size:.85rem}.aside-bottom button{margin-top:12px}main{max-width:1320px;width:100%;margin:auto;padding:36px 42px}.topline{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:28px}.pill{display:inline-block;padding:4px 10px;border-radius:20px;font-size:.76rem;background:#e8eff1;font-weight:700;white-space:nowrap}.pill.good{background:#e1f2de;color:#285a25}.pill.warn{background:#fff0d3;color:#855619}.pill.lock{background:#edf0f3;color:#566778}.card{background:white;border:1px solid var(--line);border-radius:15px;padding:24px;margin:16px 0;box-shadow:0 4px 12px #142e3f03}.card h2:first-child,.card h3:first-child{margin-top:0}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid .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}}

/* Vocabulary definition lists: retain semantic blocks and readable spacing. */
.lesson-content dl{margin:16px 0 26px;padding:0}
.lesson-content dt{display:block;font-weight:750;color:var(--ink);margin:18px 0 4px;line-height:1.4}
.lesson-content dd{display:block;margin:0;padding:0 0 16px;line-height:1.65;border-bottom:1px solid var(--line);overflow-wrap:anywhere}
.lesson-content dd:last-child{border-bottom:0;padding-bottom:0}
@media print{.lesson-content dt{break-after:avoid}.lesson-content dd{break-inside:avoid}}

/* NACDA Per-Lesson Notes v1 */
.personal-notes textarea{display:block;width:100%;box-sizing:border-box;min-height:180px;font:inherit;line-height:1.55;resize:vertical}.personal-notes details{margin:.75rem 0}.personal-notes summary{cursor:pointer;font-weight:700}.personal-notes [data-notes-status]{min-height:1.5em}.personal-notes [data-notes-conflict]{border:2px solid #b27812;padding:1rem;border-radius:10px}.personal-notes [data-notes-conflict] button{margin:.3rem}.print-answer{white-space:pre-wrap}

/* NACDA Complete Learning Materials v1 */
.lesson-diagram{overflow-x:auto;max-width:100%;border:1px solid #bfd3df;border-radius:12px;background:#f2f7fa}.lesson-diagram img{display:block;width:100%;min-width:800px;height:auto}.lesson-diagram:focus-visible{outline:3px solid #167d9a;outline-offset:3px}figure{margin:1rem 0}figcaption{font-size:.95rem;line-height:1.5;margin-top:.5rem}@media print{.lesson-diagram{overflow:visible}.lesson-diagram img{min-width:0;width:100%}figure{break-inside:avoid}}

/* NACDA Teaching Walkthrough v2 */
.teaching-private-banner{border-left:6px solid #a26812}.teaching-columns{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:20px}.teaching-private{border:2px solid #a26812}.teaching-text{white-space:pre-wrap}.teaching-evidence{background:#eef5f8;padding:16px;border-radius:10px}.teaching-evidence p{font-family:ui-monospace,monospace;white-space:pre-wrap;line-height:1.6}.teaching-highlight{background:#e0f3a3;padding:8px;border-left:5px solid #436a15}.teaching-reveal{border-top:3px solid #3c8691;padding-top:12px;margin-top:20px}.teaching-controls{position:sticky;top:0;background:#f4f8fa;padding:12px;z-index:2}.teaching-editor textarea{width:100%;box-sizing:border-box;font:inherit;line-height:1.5;min-height:80px}.teaching-editor summary{font-weight:800;cursor:pointer}.teaching-editor label{display:block;margin:14px 0}.teaching-editor fieldset{margin:20px 0;border:1px solid #b7cdd8}.teaching-editor .lesson-diagram img{min-width:500px}@media(max-width:1000px){.teaching-columns{grid-template-columns:1fr}}@media print{.teaching-private,.teaching-private-banner,.teaching-controls{display:none!important}.teaching-columns{display:block}}

/* Beginner teaching: the guidance card is not the navigation sidebar. */
aside.teaching-private{color:var(--ink,#162e3c);background:white;position:static;top:auto;height:auto;display:block;align-self:start;min-width:0} .teaching-private p,.teaching-private h2,.teaching-private h3{color:inherit}

/* NACDA Cybersecurity: full-width lessons, activities below diagrams v1.
   Scoped to the lesson .split containing a direct .side-note child.
   This does not modify other dashboards or activity controls. */
.split:has(> .side-note) {
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}
.split:has(> .side-note) > div:first-child {
  min-width: 0;
  max-width: 100%;
}
.split:has(> .side-note) > .side-note {
  position: static;
  top: auto;
  height: auto;
  min-width: 0;
  width: 100%;
  max-width: none;
  margin-top: 8px;
  box-sizing: border-box;
}
.split:has(> .side-note) .lesson-content {
  max-width: none;
  min-width: 0;
  overflow-wrap: break-word;
}
.split:has(> .side-note) .lesson-content figure {
  max-width: 100%;
  min-width: 0;
}
.split:has(> .side-note) .lesson-content figure > img[src^="data:image/svg+xml"] {
  display: block;
  max-width: 100%;
  width: 100%;
  height: auto;
}
.split:has(> .side-note) > .side-note button {
  max-width: 100%;
  white-space: normal;
}
@media print {
  .split:has(> .side-note) { display: block; }
}