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strong{font-size:10px;line-height:1.4}.lab-tab small{display:none}.guide{display:block;padding:23px}.guide ol{margin:20px 0}.model-strip{display:block}.model-strip a{display:inline-block;margin-top:10px}.readouts{padding:14px 16px}.readout small{font-size:7px;letter-spacing:.8px}.readout b{font-size:25px}.readout .readout-note{font-size:8px}.panel,.module-copy{padding:22px}.module-nav{gap:6px}.module-button{padding:13px 10px}.module-button strong{font-size:10px;line-height:1.5}.module-button small{font-size:8px}.module-button .module-num{font-size:23px}.metrics .metric{padding:15px 12px}.metric b{font-size:28px}.metric small{font-size:9px}.gap-grid{grid-template-columns:1fr 1fr}.gap-card{padding:16px}.gap-card .status{font-size:17px}.gap-card h3{font-size:12px}.footer{font-size:8px;line-height:1.7}.footer span:last-child{max-width:130px;text-align:right}.welcome-banner{align-items:flex-start;font-size:10px;padding:13px}.welcome-banner a{font-size:10px}.flow-diagram div{font-size:9px}.flow-diagram div small{font-size:7px}.form-result{font-size:11px}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}@media print{.sidebar,.topbar,.footer,button,.button-row,.skip,#toast{display:none!important}.shell{display:block}.workspace{padding:0;max-width:none}.panel,.gap-card,.metric{break-inside:avoid}body{background:white;color:black}.workspace *{color:black!important}.two-column{display:block}.panel{background:white;border-color:#aaa}.record-item{break-inside:avoid}main{padding:0}}

/* Keep the keyboard skip link clipped until focused, including full-page captures. */
.skip{top:12px;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);padding:0}.skip:focus{width:auto;height:auto;clip-path:none;padding:14px}.footer span{min-width:0}


/* An illustrative oscilloscope responds to the learner's activity. */
.learning-scope{--trace-color:var(--mint);margin:0 0 25px;padding:9px 9px 8px;border:1px solid #465742;background:#121a14;box-shadow:inset 0 0 22px #0b120d}.scope-heading{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-bottom:8px;color:#b5c5aa;font-size:7px;font-weight:700;letter-spacing:1.1px}.scope-heading button{display:grid;place-items:center;width:23px;height:22px;min-width:23px;padding:0;background:transparent;color:var(--gold);border:1px solid #3b4d37;border-radius:2px;font-size:10px;line-height:1}.scope-heading button:hover{background:#263629}.scope-heading button:disabled{opacity:.45}.learning-scope svg{display:block;width:100%;height:auto;background:#0f1712;border:1px solid #2d3d2e;overflow:hidden}.scope-grid{color:#50694d;opacity:.52}.scope-axis{fill:none;stroke:#6b835e;stroke-width:.6;opacity:.4}.scope-trace,.scope-glow,.scope-echo{fill:none;stroke:var(--trace-color);stroke-linejoin:round;stroke-linecap:round}.scope-trace{stroke-width:1.45}.scope-glow{stroke-width:4;opacity:.12}.scope-echo{stroke-width:1;opacity:.18}.scope-beam{stroke:#b5d4ad;stroke-width:.6;opacity:.14}.scope-dot{fill:var(--gold)}.sidebar-bottom .scope-status{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0;color:#9fb994;font-size:8px;line-height:1.3;letter-spacing:.4px;margin:9px 0 0}.learning-scope[data-feedback=correct]{--trace-color:var(--gold);border-color:#7a713e}.learning-scope[data-feedback=correct] .scope-status{color:var(--gold)}.learning-scope[data-feedback=practice]{--trace-color:#c5b979}.learning-scope[data-feedback=section]{--trace-color:#c7dfb8}.learning-scope[data-motion=paused] .scope-beam{opacity:0}
@media(max-width:720px){.sidebar-bottom{display:block;margin-top:0;padding:14px 0 0}.sidebar-bottom>p,.sidebar-bottom>.offline{display:none}.learning-scope{display:grid;grid-template-columns:111px minmax(0,1fr);grid-template-rows:28px 25px;column-gap:13px;align-items:center;max-width:440px;margin:0;padding:8px 10px}.scope-heading{grid-column:1;grid-row:1;margin:0;letter-spacing:.6px;font-size:7px}.learning-scope svg{grid-column:2;grid-row:1/3;align-self:stretch;width:100%;height:53px}.sidebar-bottom .scope-status{grid-column:1;grid-row:2;margin:0;line-height:1.3}}

@media(min-width:721px) and (max-height:800px){.sidebar{padding-top:24px;padding-bottom:18px}.sidebar-bottom{padding:24px 12px 0}.sidebar-bottom>p{margin-bottom:12px}.learning-scope{margin-bottom:18px;padding:7px}.scope-heading{margin-bottom:5px}.scope-heading button{height:19px}.learning-scope svg{height:46px}.sidebar-bottom .scope-status{margin-top:6px}.sidebar-bottom .small{margin-top:8px}}

/* A clearly labeled interview classroom, stored independently from regular work. */
.interview-entry{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:20px 22px;background:#202b22;border:1px solid #566548;margin-bottom:32px}.interview-entry .eyebrow{font-size:9px;display:block}.interview-entry p{font-size:12px;color:var(--muted);margin:9px 0 0;max-width:560px}.interview-entry a{flex:none}.interview-panel{border:1px solid #6e6845;background:#1b241d;margin-bottom:30px}.interview-flag{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:15px 19px}.interview-flag>div:first-child{display:flex;align-items:center;gap:17px;flex-wrap:wrap}.interview-flag .eyebrow{font-size:8px;letter-spacing:1.4px;margin:0}.interview-flag strong{font-size:11px;font-weight:400;color:var(--cream)}.interview-tools{display:flex;gap:18px;align-items:center;flex:none}.interview-tools a,.interview-tools button{font-size:10px;white-space:nowrap}.interview-panel details{border-top:1px solid var(--line);padding:0 19px}.interview-panel summary{color:var(--muted);cursor:pointer;padding:12px 0;font-size:11px}.interview-stops{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:7px;margin:3px 0 16px}.interview-stops button{padding:11px 9px;color:var(--muted);background:#141c16;border:1px solid var(--line);font-size:10px;text-align:left;line-height:1.45}.interview-stops button>span{color:var(--gold);font:16px Georgia,serif;display:block;margin-bottom:5px}.interview-stops button[aria-pressed=true]{background:#30412f;color:var(--cream);border-color:#8b9469}.interview-stops button:hover{border-color:var(--gold)}.interview-cue{border-left:2px solid var(--gold);padding:0 0 0 14px;margin:0 0 19px;max-width:880px}.interview-cue strong{font-size:12px;font-weight:400;color:var(--gold)}.interview-cue p{font-size:12px;color:var(--muted);line-height:1.6;margin:7px 0 0}.interview-cue button{margin-top:12px;padding:9px 13px;min-height:34px}
@media(max-width:720px){.interview-entry{display:block;padding:18px}.interview-entry a{margin-top:16px}.interview-flag{display:block;padding:14px}.interview-flag>div:first-child{display:block}.interview-flag strong{display:block;margin-top:8px;line-height:1.5}.interview-tools{margin-top:13px}.interview-panel details{padding:0 14px}.interview-stops{grid-template-columns:repeat(2,minmax(0,1fr))}.interview-stops button:last-child{grid-column:1/3}.interview-stops button>span{display:inline;margin-right:8px}.interview-cue p{font-size:11px}}

/* Distinct workspaces with a local instructor roster and submission inbox. */
.workspace-switch{display:flex;gap:2px;margin:25px 12px 0;padding:3px;border:1px solid #465742;background:#101812;border-radius:3px}.workspace-switch button{flex:1;padding:8px 5px;font-size:10px;background:transparent;color:var(--muted);border-radius:2px}.workspace-switch button[aria-pressed=true]{background:var(--cream);color:var(--ink)}.sidebar .nav-label{margin-top:23px}.learner-ribbon{display:flex;align-items:center;gap:13px;flex-wrap:wrap;padding:0 0 18px;margin-bottom:20px;border-bottom:1px solid var(--line)}.learner-ribbon>span{font-size:8px;letter-spacing:1.4px;color:var(--muted)}.learner-ribbon strong{font-size:12px;color:var(--mint);font-weight:400;overflow-wrap:anywhere}.instructor-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:0 0 25px}.instructor-actions .text-link{margin-left:auto}.instructor-metrics{grid-template-columns:repeat(4,minmax(0,1fr))}.instructor-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:22px;align-items:start;margin-top:24px}.instructor-grid>.panel{margin-top:0;min-width:0}.learner-context{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:14px 0 23px;border-bottom:1px solid var(--line);margin:0 0 24px}.learner-context>div{min-width:0}.learner-context small{display:block;color:var(--muted);font-size:8px;letter-spacing:1.2px;margin-bottom:8px}.learner-context strong{font:21px Georgia,serif;overflow-wrap:anywhere}.learner-context label{color:var(--muted);font-size:10px;flex:none;width:200px}.learner-context select{display:block;margin-top:8px;padding:8px;font-size:11px}.panel .learner-context{align-items:flex-start;flex-wrap:wrap}.panel .learner-context label{width:100%}.panel .gap-grid{grid-template-columns:1fr;gap:10px;margin-bottom:22px}.panel .gap-card{padding:17px}.instructor-route{display:flex;gap:18px;padding:19px 0;border-top:1px solid var(--line)}.instructor-route>span{font:23px Georgia,serif;color:var(--gold)}.instructor-route a{font:20px Georgia,serif;color:var(--cream);text-decoration:none}.instructor-route p{margin:9px 0 0}.workspace-note{font-size:10px;color:var(--muted);line-height:1.7;margin:22px 0 0;max-width:860px}.roster-toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.roster-toolbar .check-item{border:0;margin:0;padding:0}.roster-list{display:grid}.roster-row{display:flex;align-items:center;gap:16px;justify-content:space-between;padding:18px 0;border-bottom:1px solid var(--line)}.roster-row>div{min-width:0}.roster-row.selected{border-left:2px solid var(--gold);padding-left:14px}.roster-name{padding:0;color:var(--cream);background:none;text-align:left;font:21px Georgia,serif;overflow-wrap:anywhere}.roster-name:hover{text-decoration:underline;text-underline-offset:4px}.roster-row p{font-size:11px;margin:8px 0}.roster-row small{font-size:9px;color:var(--muted);overflow-wrap:anywhere}.create-learner,.backup-restore{margin-top:24px;border-top:1px solid var(--line);padding-top:18px}.create-learner summary,.backup-restore summary{cursor:pointer;color:var(--gold);font-size:13px}.scope-editor{min-height:245px}.teaching-library{margin:20px 0 32px}.teaching-module{border-top:1px solid var(--line)}.teaching-module:last-child{border-bottom:1px solid var(--line)}.teaching-module summary{display:flex;align-items:center;gap:23px;cursor:pointer;padding:25px 8px;list-style:none}.teaching-module summary:after{content:'+';font:25px Georgia,serif;color:var(--gold);margin-left:auto}.teaching-module[open] summary:after{content:'−'}.teaching-module summary>span{color:var(--gold);font:28px Georgia,serif}.teaching-module h2{font-size:28px;margin:0 0 9px}.teaching-module small{color:var(--muted);font-size:10px}.teaching-module-body{display:grid;grid-template-columns:1fr 1fr;gap:32px;padding:8px 8px 28px}.teaching-module-body p{font-size:13px;color:var(--muted)}.answer-reference{border-left:1px solid var(--line);padding-left:28px}.answer-reference .eyebrow{font-size:8px;color:var(--gold);margin-bottom:15px}.answer-reference strong{font-size:14px;color:var(--mint);font-weight:400}.answer-reference a{font-size:11px}.lab-briefings{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.lab-briefings .panel{padding:23px;margin:0}.lab-briefings h2{font-size:24px}.lab-briefings ol{padding-left:18px;font-size:11px;color:var(--muted);line-height:1.7}.lab-briefings li{margin-bottom:12px}.lab-briefings details{border-top:1px solid var(--line);padding-top:16px;font-size:11px;color:var(--gold);margin-top:20px}.lab-briefings details p{margin-top:12px;font-size:11px}.lab-briefings .secondary{margin-top:20px;width:100%}.lab-briefings summary{cursor:pointer}.import-panel{margin-bottom:22px}.import-panel form{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto;align-items:center;gap:22px}.import-panel .field{margin:0}.import-panel input[type=file],.backup-restore input[type=file]{width:100%;color:var(--muted);border:1px solid #53614b;padding:8px;background:#121a14;font-size:11px}.import-panel input::file-selector-button,.backup-restore input::file-selector-button{background:#30432f;color:var(--cream);border:0;padding:8px 10px;margin-right:10px}.import-panel #import-result,.backup-restore #restore-result{font-size:12px;color:var(--gold);line-height:1.6;margin-top:14px}.inbox-list{display:grid;gap:12px}.inbox-item{display:grid;gap:10px;width:100%;text-align:left;padding:18px;border:1px solid var(--line);background:transparent;color:var(--cream)}.inbox-item.selected{border-color:var(--gold);background:#273227}.inbox-item strong{font:21px Georgia,serif;overflow-wrap:anywhere}.inbox-item>span{font-size:10px;color:var(--mint)}.inbox-item small{font-size:10px;color:var(--muted);line-height:1.6;overflow-wrap:anywhere}.submission-evidence{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:16px 0;margin:24px 0;color:var(--gold)}.submission-evidence summary{cursor:pointer;font-size:12px}.submission-evidence .record-list{margin-top:18px}.submission-evidence .record-item{color:var(--cream)}.submission-evidence .record-item strong{font-size:11px}.submission-evidence .record-item p{font-size:10px}.submission-evidence .record-item small{font-size:9px}.submission-evidence .result-tag{font-size:8px}.submission-evidence .record-item{flex-wrap:wrap}.instructor-grid .instructor-metrics{grid-template-columns:1fr 1fr;margin:22px 0}.instructor-grid .metric{padding:15px}.instructor-grid .metric b{font-size:26px}.instructor-grid .metric small{font-size:9px}.empty>p{margin:10px 0 0}.demo-banner{display:flex;gap:22px;align-items:center;justify-content:space-between;border-left:2px solid var(--gold);padding:14px 20px;background:#242f24;margin:0 0 22px}.demo-banner strong{font-size:10px;letter-spacing:1px;color:var(--gold)}.demo-banner p{font-size:12px;color:var(--muted);margin:9px 0 0}.demo-banner a{font-size:11px;white-space:nowrap}
@media(min-width:721px) and (max-height:800px){.workspace-switch{margin-top:16px}.sidebar .nav-label{margin-top:16px;margin-bottom:11px;font-size:8px}.sidebar nav a{padding:9px 12px}.sidebar-separator{margin:17px 12px 12px}.sidebar-bottom{padding-top:18px}}
@media(max-width:980px){.instructor-grid{grid-template-columns:1fr}.import-panel form{grid-template-columns:1fr 1fr}.import-panel button{grid-column:1/3;justify-self:start}.lab-briefings{grid-template-columns:1fr}.instructor-metrics{grid-template-columns:1fr 1fr}.teaching-module-body{grid-template-columns:1fr}.answer-reference{border-left:0;border-top:1px solid var(--line);padding:22px 0 0}.instructor-actions .text-link{margin-left:0}}
@media(max-width:720px){.workspace-switch{max-width:230px;margin:16px 0 0}.workspace-switch button{font-size:11px;padding:9px}.sidebar .nav-label{display:none}.learner-ribbon{margin-bottom:22px}.learner-context{display:block}.learner-context label{display:block;width:100%;margin-top:16px}.import-panel form{grid-template-columns:1fr}.import-panel button{grid-column:1}.instructor-actions{gap:10px}.roster-toolbar .secondary{font-size:10px}.teaching-module summary{padding:22px 0;gap:16px}.teaching-module h2{font-size:24px}.teaching-module-body{padding-left:0;padding-right:0}.demo-banner{display:block}.demo-banner a{display:inline-block;margin-top:13px}.instructor-grid .panel{padding:22px}.roster-row{flex-wrap:wrap}.roster-name{font-size:22px}.instructor-metrics .metric{padding:17px 12px}}