:root{--bg-primary: #0d1117;--bg-secondary: #161b22;--bg-tertiary: #1c2128;--bg-hover: #21262d;--border: #30363d;--text-primary: #e6edf3;--text-secondary: #8b949e;--text-muted: #6e7681;--accent: #58a6ff;--accent-hover: #79c0ff;--green: #3fb950;--red: #f85149;--yellow: #d29922;--orange: #db6d28;--purple: #bc8cff;--radius: 8px;--font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", "Consolas", monospace;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;background:var(--bg-primary);color:var(--text-primary);font-family:var(--font-sans);font-size:14px;overflow:hidden}#app{height:100%;display:flex;flex-direction:column}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}button{font-family:inherit;font-size:13px;cursor:pointer;border:1px solid var(--border);border-radius:var(--radius);padding:6px 14px;background:var(--bg-tertiary);color:var(--text-primary);transition:all .15s ease}button:hover{background:var(--bg-hover);border-color:var(--text-muted)}button:active{transform:scale(.97)}button.primary{background:var(--accent);color:#0d1117;border-color:var(--accent);font-weight:600}button.primary:hover{background:var(--accent-hover)}button.danger{background:transparent;color:var(--red);border-color:var(--red)}button.danger:hover{background:#f851491a}input,textarea,select{font-family:inherit;font-size:13px;padding:8px 12px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);outline:none;transition:border-color .15s}input:focus,textarea:focus,select:focus{border-color:var(--accent)}.header{display:flex;align-items:center;justify-content:space-between;padding:0 16px;height:48px;min-height:48px;background:var(--bg-secondary);border-bottom:1px solid var(--border);z-index:100}.header .logo{font-size:16px;font-weight:700;color:var(--accent);font-family:var(--font-mono);letter-spacing:-.5px}.header .logo span{color:var(--text-muted);font-weight:400}.header-right{display:flex;align-items:center;gap:12px}.header .username{color:var(--text-secondary);font-size:13px}.login-page{display:flex;align-items:center;justify-content:center;height:100%;background:var(--bg-primary)}.login-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:40px;width:380px;max-width:90vw}.login-card h1{font-family:var(--font-mono);font-size:24px;color:var(--accent);margin-bottom:4px}.login-card .subtitle{color:var(--text-muted);margin-bottom:28px;font-size:13px}.login-card .field{margin-bottom:16px}.login-card label{display:block;font-size:12px;color:var(--text-secondary);margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px}.login-card input{width:100%}.login-card button{width:100%;margin-top:8px;padding:10px}.login-card .error{color:var(--red);font-size:13px;margin-top:12px}.login-help{color:var(--text-secondary);font-size:13px;margin-bottom:16px}.create-user-form>p{color:var(--text-secondary);font-size:13px;max-width:260px}.dashboard{display:flex;flex-direction:column;flex:1;min-height:0}.workspace{display:flex;flex:1;min-height:0}.panel{display:flex;flex-direction:column;min-width:0;min-height:0}.panel-header{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;background:var(--bg-tertiary);border-bottom:1px solid var(--border);font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary);min-height:36px}.panel-body{flex:1;overflow:auto;min-height:0}.terminal-panel{flex:5;border-right:1px solid var(--border)}.terminal-tabs{display:flex;background:var(--bg-tertiary);border-bottom:1px solid var(--border);min-height:36px;align-items:center;padding:0 8px;gap:2px}.terminal-tab{padding:6px 14px;font-size:12px;font-family:var(--font-mono);border:none;border-radius:4px 4px 0 0;background:transparent;color:var(--text-secondary);cursor:pointer;border-bottom:2px solid transparent}.terminal-tab.active{color:var(--accent);border-bottom-color:var(--accent);background:var(--bg-primary)}.terminal-tab:hover:not(.active){color:var(--text-primary);background:var(--bg-hover)}.terminal-panes{flex:1;position:relative;min-height:0}.terminal-pane{position:absolute;top:0;right:0;bottom:0;left:0;padding:4px;background:#0d1117}.preview-panel{flex:5;display:flex;flex-direction:column}.preview-controls{display:flex;align-items:center;gap:6px;width:100%;min-width:0}.preview-toolbar{padding:8px 12px;background:var(--bg-secondary);border-bottom:1px solid var(--border)}.preview-context,.agent-mode-help{color:var(--text-secondary);background:var(--bg-secondary);font-size:11px;line-height:1.6;padding:9px 12px;border-bottom:1px solid var(--border)}.preview-controls a{font-size:11px;white-space:nowrap}.preview-panel .panel-header{flex-wrap:wrap;gap:12px;text-transform:none;letter-spacing:0}.environment-switch{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--text-muted)}.environment-switch .selected{color:var(--text-primary);font-weight:600}.environment-switch button{position:relative;width:42px;height:24px;padding:3px;border-radius:20px;background:#3fb95033;border-color:#3fb95088;flex-shrink:0}.environment-switch button[aria-checked=true]{background:#58a6ff33;border-color:var(--accent)}.switch-thumb{display:block;width:16px;height:16px;background:var(--green);border-radius:50%;transition:transform .15s ease}[aria-checked=true] .switch-thumb{transform:translate(17px);background:var(--accent)}.environment-switch button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.environment-note{margin:14px 0 22px;font-size:12px}.preview-url-bar{width:0;min-width:40px;flex:1;font-family:var(--font-mono);font-size:11px;padding:4px 8px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-secondary)}.preview-btn{padding:4px 8px;font-size:13px;border:none;background:transparent;color:var(--text-secondary);cursor:pointer}.preview-btn:hover{color:var(--text-primary)}.preview-btn.active{color:var(--accent)}.preview-body{flex:1;display:flex;align-items:center;justify-content:center;background:#fff;overflow:hidden;position:relative}.preview-body iframe{border:none;width:100%;height:100%;background:#fff}.preview-body.mobile{background:var(--bg-primary)}.preview-body.mobile iframe{width:375px;height:667px;max-width:100%;max-height:100%;border:2px solid var(--border);border-radius:12px;box-shadow:0 4px 24px #0000004d}.preview-placeholder{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--bg-primary);color:var(--text-secondary);gap:8px;padding:24px;text-align:center}.preview-placeholder p{font-size:14px}.preview-hint{font-size:12px!important;color:var(--text-muted);text-align:center;line-height:1.6}.preview-hint code{font-family:var(--font-mono);background:var(--bg-tertiary);padding:2px 6px;border-radius:3px;font-size:12px;color:var(--accent)}.git-drawer{border-top:1px solid var(--border);background:var(--bg-secondary);transition:height .2s ease;display:flex;flex-direction:column}.git-drawer.collapsed{height:36px;overflow:hidden}.git-drawer.expanded{height:280px}.git-drawer .panel-header{cursor:pointer;-webkit-user-select:none;user-select:none}.git-content{flex:1;display:flex;overflow:hidden}.git-log-list{flex:1;overflow-y:auto;padding:8px 12px}.git-commit-card{display:flex;align-items:flex-start;gap:10px;padding:8px 10px;border-radius:var(--radius);cursor:pointer;border-bottom:1px solid var(--border)}.git-commit-card:hover{background:var(--bg-hover)}.git-commit-card.active{background:var(--bg-tertiary);border-color:var(--accent)}.git-commit-card .hash{font-family:var(--font-mono);font-size:12px;color:var(--accent);white-space:nowrap}.git-commit-card .msg{font-size:13px;flex:1}.git-commit-card .date{font-size:11px;color:var(--text-muted);white-space:nowrap}.git-diff-view{flex:1;overflow:auto;padding:12px;font-family:var(--font-mono);font-size:12px;white-space:pre-wrap;border-left:1px solid var(--border);background:var(--bg-primary)}.git-diff-view .diff-add{color:var(--green)}.git-diff-view .diff-del{color:var(--red)}.git-diff-view .diff-hunk{color:var(--purple)}.git-diff-view .diff-file{color:var(--yellow);font-weight:600}.git-commit-form{display:flex;gap:8px;padding:8px 12px;border-top:1px solid var(--border)}.git-commit-form input{flex:1}.git-status-badge{background:var(--yellow);color:#000;font-size:10px;font-weight:700;padding:1px 6px;border-radius:10px;margin-left:6px}.admin-page{padding:24px;max-width:1200px;width:100%;margin:0 auto;height:calc(100% - 48px);overflow-y:auto}.admin-section{border:1px solid var(--border);border-radius:12px;background:var(--bg-secondary);padding:22px;margin:0 0 22px;min-width:0}.admin-section .section-heading{flex-wrap:wrap;align-items:center;gap:12px}.admin-section h2{margin-bottom:10px}.admin-section p,.policy-dialog p{line-height:1.65;margin:12px 0}.admin-section details{margin:16px 0 0}.admin-section summary,.learn-page summary{cursor:pointer;color:var(--accent)}.cost-estimates>summary{cursor:pointer;color:var(--text-primary)}.cost-estimates>summary .eyebrow{display:inline;margin-left:8px}.cost-estimates>summary h2{margin:10px 0 0}.cost-estimates[open]>summary{margin-bottom:20px}.admin-section form{margin-top:16px}.admin-section h3{margin-top:20px}.admin-section a,.learn-page a,.learn-header a,.lesson-entry{color:var(--accent)}.policy-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:16px 0}.policy-grid label{display:flex;flex-direction:column;gap:7px;font-size:12px;color:var(--text-secondary);min-width:0}.policy-grid input{width:100%;min-width:0}.check-field{display:flex;gap:10px;align-items:center;margin:14px 0;line-height:1.6}.check-field input{flex-shrink:0}.policy-dialog{margin:auto;width:min(700px,calc(100% - 32px));max-height:calc(100% - 32px);overflow-y:auto;padding:26px;color:var(--text-primary);background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px}.policy-dialog::backdrop{background:#000a}.policy-dialog h2{font-size:22px}.cost-cards{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:12px}.cost-cards article{background:var(--bg-primary);padding:18px;border:1px solid var(--border);border-radius:8px;min-width:0}.cost-cards span,.cost-cards small{display:block;color:var(--text-secondary);font-size:12px;line-height:1.6}.cost-cards strong{display:block;color:var(--green);font-size:22px;margin:8px 0;overflow-wrap:anywhere}.cost-table{min-width:760px;margin-top:18px}.allowance-note{display:block;color:var(--text-secondary);font-size:11px;min-width:155px;margin-top:6px}#classroom-capacity{color:var(--text-secondary);font-size:12px}.lesson-entry{display:block;font-size:12px;margin:0 0 20px;line-height:1.5}.learn-page{overflow-y:auto;padding:44px 24px 80px;scroll-behavior:smooth}.learn-hero,.learn-nav,.learn-content{max-width:900px;margin:0 auto}.learn-hero h1{font-size:clamp(28px,4vw,44px);max-width:700px;line-height:1.15;margin-bottom:20px}.learn-hero p{max-width:730px;line-height:1.8;margin:14px 0}.learn-progress{display:flex;align-items:center;gap:14px;margin:22px 0 8px}.learn-progress progress{width:min(260px,50%);accent-color:var(--green)}.learn-nav{display:flex;flex-wrap:wrap;gap:10px 20px;padding:20px 0;font-size:13px}.learn-step{padding:28px;border:1px solid var(--border);border-radius:12px;background:var(--bg-secondary);margin:20px 0;scroll-margin-top:20px}.learn-step h2{font-size:24px;margin-bottom:18px}.learn-step p,.learn-step li{line-height:1.85;margin:12px 0}.learn-step ol,.learn-step ul{padding-left:24px}.learn-step details{padding:16px;border:1px solid var(--border);border-radius:8px}.learn-loop{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.learn-loop span{border:1px solid var(--border);border-radius:20px;padding:8px 18px;color:var(--green)}.prompt-example{border:1px solid var(--border);background:var(--bg-primary);padding:18px;border-radius:8px}.prompt-example pre{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.8;font-size:13px;font-family:var(--font-mono);margin-bottom:14px}.learn-question{padding:16px;border:1px solid var(--border);border-radius:8px;margin-top:24px}.learn-question legend{padding:0 8px;font-weight:600}.learn-question label{display:block;margin:14px 0;line-height:1.7}.learn-question p{color:var(--accent)}.step-check{border-top:1px solid var(--border);padding-top:18px;margin-top:24px;color:var(--green)}.lesson-sources{font-size:12px}@media(max-width:700px){.cost-cards,.policy-grid{grid-template-columns:1fr}.admin-section{padding:16px}.learn-page{padding:28px 16px 60px}.learn-step{padding:20px}.learn-step .user-table{min-width:580px}.learn-header,.admin-header{height:auto;min-height:48px;padding:10px 16px;flex-wrap:wrap;gap:8px}.admin-header .header-right{flex-wrap:wrap}.admin-page{flex:1;min-height:0}}.admin-page h2{font-size:20px;margin-bottom:20px}.create-user-form{display:flex;gap:8px;margin-bottom:24px;align-items:end}.create-user-form .field{display:flex;flex-direction:column;gap:4px}.create-user-form label{font-size:11px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.user-table{width:100%;border-collapse:collapse}.user-table th{text-align:left;padding:8px 12px;border-bottom:2px solid var(--border);font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary)}.user-table td{padding:10px 12px;border-bottom:1px solid var(--border);font-size:13px}.user-table tr:hover td{background:var(--bg-hover)}.status-badge{font-size:11px;padding:2px 8px;border-radius:10px;font-weight:600}.status-badge.running{background:#3fb95026;color:var(--green)}.status-badge.stopped{background:#f8514926;color:var(--red)}.table-actions{display:flex;gap:6px;flex-wrap:wrap}.admin-toolbar{display:flex;align-items:center;gap:16px;margin-bottom:16px;flex-wrap:wrap}.admin-toolbar label,.password-options label{display:flex;align-items:center;gap:8px}.admin-message{min-height:20px;margin:12px 0;color:var(--red)}.admin-message[data-type=success]{color:var(--green)}.user-table-scroll{overflow-x:auto}.status-badge.archived{background:var(--bg-tertiary);color:var(--text-secondary)}.bulk-students{margin:0 0 20px;padding:14px;border:1px solid var(--border);border-radius:var(--radius)}.bulk-students summary{cursor:pointer}.bulk-students form{display:grid;gap:12px;margin-top:16px}.bulk-students textarea{width:100%;resize:vertical}.bulk-students p,.bulk-students label{color:var(--text-secondary);font-size:13px}.bulk-students button{justify-self:start}.admin-dialog{margin:auto;width:min(480px,calc(100% - 32px));max-height:calc(100% - 32px);overflow-y:auto;padding:24px;background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border);border-radius:var(--radius)}.admin-dialog::backdrop{background:#000000a6}.admin-dialog form{display:grid;gap:12px}.admin-dialog h2{font-size:20px}.admin-dialog p{color:var(--text-secondary);font-size:13px}.admin-dialog p[role=alert]{color:var(--red)}.password-options,.dialog-actions{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}.dialog-actions{justify-content:flex-end}@media(max-width:600px){.admin-page{padding:16px}.create-user-form{flex-wrap:wrap}.admin-toolbar{gap:8px}}.table-actions button{padding:3px 10px;font-size:11px}.panel-toggles{display:flex;gap:4px}.panel-toggles button{padding:4px 10px;font-size:11px;border:none;background:transparent;color:var(--text-secondary)}.panel-toggles button.active{color:var(--accent);background:var(--bg-tertiary);border-radius:4px}.spinner{display:inline-block;width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.dashboard-header{gap:12px;flex-shrink:0}.dashboard-header .logo,.dashboard-header .header-right{flex-shrink:0}.workspace-controls{display:flex;align-items:center;gap:10px;flex:1;min-width:0;padding:0 12px;border-left:1px solid var(--border);font-size:12px;overflow-x:auto}.workspace-controls>*{flex-shrink:0;white-space:nowrap}.workspace-controls button{padding:4px 10px;font-size:12px}:root .workspace-controls [hidden]{display:none}#workspace-saved,#workspace-cost{color:var(--text-muted)}#workspace-error:empty{display:none}#workspace-error{color:var(--red);padding:8px 20px}[hidden]{display:none!important}a{color:var(--accent)}.header a.logo{text-decoration:none}.muted{color:var(--text-secondary);line-height:1.65}.small{font-size:12px}.eyebrow{display:block;color:var(--text-muted);font-size:10px;font-weight:700;letter-spacing:.12em;margin-bottom:10px}.form-error{color:var(--red);line-height:1.5;min-height:18px;margin:10px 0;overflow-wrap:anywhere}.success-text{color:var(--green)}.projects-layout{display:grid;grid-template-columns:240px minmax(0,1fr);flex:1;min-height:0}.projects-sidebar{background:var(--bg-secondary);padding:28px 20px;border-right:1px solid var(--border);overflow:auto}.projects-sidebar h2{margin-bottom:22px;font-size:22px}.projects-sidebar nav{display:grid;gap:8px;margin-bottom:28px}.project-nav{display:grid;gap:5px;padding:12px;border:1px solid transparent;border-radius:8px;text-decoration:none;color:var(--text-primary);overflow-wrap:anywhere}.project-nav:hover{background:var(--bg-hover)}.project-nav.selected{background:#58a6ff12;border-color:#58a6ff45}.project-nav small{color:var(--text-muted);font-size:11px}#new-project{display:grid;gap:10px}#new-project label{font-size:12px;color:var(--text-secondary)}#new-project input{width:100%}.connection-link{display:block;margin:26px 0;font-size:12px}.sidebar-note{color:var(--text-muted);font-size:12px;line-height:1.7;border-top:1px solid var(--border);padding-top:20px}.projects-main{overflow:auto;padding:36px clamp(20px,4vw,64px)}.projects-welcome,.connection-card,.project-journey,.project-details{max-width:1120px;margin:0 auto}.projects-welcome{margin-bottom:30px}.projects-welcome h1{font-size:clamp(26px,3vw,38px);letter-spacing:-.035em;margin-bottom:12px}.projects-welcome p{max-width:580px;color:var(--text-secondary);line-height:1.7;font-size:15px}.connection-card{background:var(--bg-secondary);padding:26px;border:1px solid var(--border);border-radius:12px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.section-heading h2,.project-tab-panel h2{font-size:17px}.status-pill{display:inline-block;border:1px solid var(--border);padding:5px 9px;border-radius:20px;color:var(--text-secondary);font-size:11px;white-space:nowrap}.status-pill.healthy{color:var(--green);background:#3fb95010;border-color:#3fb95050}.connection-card>p{margin:16px 0}.connection-id{font-size:12px;overflow-wrap:anywhere}.connection-card label{display:block;margin:16px 0 8px;color:var(--text-secondary);font-size:12px}.connection-card input{display:block;width:min(100%,540px)}.connection-card form button{margin-top:14px}.connection-card summary{cursor:pointer;padding:16px 0;font-size:13px}.token-connection{margin-top:14px;border-top:1px solid var(--border)}.token-connection a{display:block;margin:12px 0;font-size:12px}.form-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.form-row select{max-width:100%}.project-journey{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}.project-journey article{padding:20px 8px}.project-journey article>span{color:var(--accent);font-family:var(--font-mono);font-size:12px}.project-journey h3{margin:12px 0 8px;font-size:14px}.project-journey p{color:var(--text-secondary);font-size:12px;line-height:1.7}.project-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}.project-title h1{font-size:28px;letter-spacing:-.03em;overflow-wrap:anywhere}.button-link{display:inline-block;border:1px solid var(--border);border-radius:8px;padding:9px 12px;font-size:12px;text-decoration:none;white-space:nowrap}.resource-grid{display:grid;grid-template-columns:1.4fr 1fr .8fr;gap:12px}.resource-grid article{padding:18px;border:1px solid var(--border);background:var(--bg-secondary);border-radius:10px;display:flex;flex-direction:column;gap:10px;overflow-wrap:anywhere}.resource-grid article>span{color:var(--text-muted);font-size:11px}.resource-grid strong,.resource-grid a{font-size:13px;font-weight:600}.resource-grid small{color:var(--text-muted);font-size:10px;line-height:1.5}.project-tabs{display:flex;gap:18px;border-bottom:1px solid var(--border);margin-top:24px}.project-tabs button{padding:14px 0;border:0;border-bottom:2px solid transparent;border-radius:0;color:var(--text-secondary);background:transparent}.project-tabs button[aria-selected=true]{color:var(--accent);border-bottom-color:var(--accent)}.task-composer{border:1px solid var(--border);border-radius:12px;padding:18px;background:var(--bg-secondary);margin-bottom:16px}.task-composer label{display:block;font-size:13px;margin-bottom:12px}.task-composer textarea{width:100%;resize:vertical;line-height:1.6;min-height:90px}.composer-footer{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap}.composer-footer>span{flex:1;min-width:160px}.run-status{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:14px 0;font-size:12px;color:var(--accent)}.build-review{border:1px solid #3fb95066;background:#3fb9500b;padding:22px;border-radius:12px;margin:20px 0}.build-review p{line-height:1.65;font-size:13px;margin:12px 0}.build-review button{margin-top:14px}.project-details details{margin:10px 0}.project-details summary{cursor:pointer;color:var(--text-secondary);font-size:12px}.project-details pre{background:var(--bg-primary);border:1px solid var(--border);border-radius:6px;padding:12px;font:11px/1.7 var(--font-mono);max-height:300px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;margin-top:10px}.project-timeline{list-style:none;margin:16px 0 30px}.project-timeline li{display:grid;grid-template-columns:10px minmax(0,1fr);gap:14px;padding:0 0 20px}.timeline-dot{height:7px;width:7px;background:var(--accent);border-radius:50%;margin-top:5px}.event-failed .timeline-dot{background:var(--red)}.event-succeeded .timeline-dot{background:var(--green)}.event-meta{display:flex;gap:12px;font-size:10px;color:var(--text-muted);margin-bottom:7px}.event-meta span{text-transform:uppercase;letter-spacing:.06em}.project-timeline p{font-size:13px;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere}.project-timeline .empty-timeline{display:block;padding:24px 0;color:var(--text-muted);font-size:13px}.operation-actions{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}#operation-result{margin-bottom:22px}#project-operations>h2{margin-top:24px;margin-bottom:12px}#project-operations>.muted{font-size:12px;margin-bottom:12px}.history-row{padding:16px 0;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px;justify-content:space-between}.history-row strong{font-size:12px;text-transform:capitalize}.history-row small{display:block;margin-top:7px;font-size:10px;color:var(--text-muted)}.history-actions{display:flex;gap:8px}.history-actions button{font-size:11px}.migration-list{list-style:none}.migration-list li{padding:10px 0;display:flex;gap:12px;justify-content:space-between;font-size:11px;color:var(--text-secondary)}.learning-note,.usage-summary{border:1px solid var(--border);border-radius:8px;padding:18px;margin:24px 0;font-size:12px}.learning-note p,.usage-summary p{color:var(--text-secondary);line-height:1.7;margin-top:10px}#recovery-dialog{margin:auto;width:min(480px,90vw);background:var(--bg-secondary);color:var(--text-primary);padding:26px;border:1px solid var(--border);border-radius:12px}#recovery-dialog::backdrop{background:#0009}#recovery-dialog p{margin:16px 0;font-size:13px;line-height:1.7}#recovery-dialog label{display:block;margin-bottom:10px;font-size:12px}#recovery-dialog input{width:100%}.dialog-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}@media(max-width:900px){.projects-layout{grid-template-columns:190px minmax(0,1fr)}.projects-sidebar{padding:24px 14px}.resource-grid{grid-template-columns:1fr}.project-title{align-items:flex-start;flex-direction:column}.project-journey{grid-template-columns:1fr;gap:0}.project-journey article{padding:14px 0}}@media(max-width:600px){.projects-layout{display:flex;flex-direction:column;overflow:auto}.projects-sidebar{overflow:visible;padding:18px;border-right:0;border-bottom:1px solid var(--border)}.projects-sidebar h2{margin-bottom:10px}.projects-sidebar nav{display:flex;overflow:auto;margin-bottom:12px}.project-nav{flex-shrink:0;min-width:130px}.projects-sidebar .sidebar-note{display:none}#new-project{display:flex;flex-wrap:wrap}#new-project label{width:100%}#new-project input{flex:1;min-width:100px}.connection-link{margin:12px 0 0}.projects-main{overflow:visible;padding:24px 18px}.history-row{align-items:flex-start;flex-direction:column}.connection-card{padding:18px}.header-right{gap:8px}.header-right a{font-size:11px}}button:disabled{opacity:.45;cursor:not-allowed}@media(max-width:760px){.dashboard-header{height:auto;padding:10px 12px;flex-wrap:wrap;gap:10px}.dashboard-header .header-right{flex-wrap:wrap;margin-left:auto;flex-shrink:1}.dashboard-header .workspace-controls{order:1;flex-basis:100%;padding:0;border-left:0}.dashboard{overflow:auto}.dashboard .workspace{flex:1 0 auto;flex-direction:column}.dashboard .terminal-panel{min-height:320px;border-right:0}.dashboard .preview-panel{min-height:420px;border-top:1px solid var(--border)}}/**
 * Copyright (c) 2014 The xterm.js authors. All rights reserved.
 * Copyright (c) 2012-2013, Christopher Jeffrey (MIT License)
 * https://github.com/chjj/term.js
 * @license MIT
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * Originally forked from (with the author's permission):
 *   Fabrice Bellard's javascript vt100 for jslinux:
 *   http://bellard.org/jslinux/
 *   Copyright (c) 2011 Fabrice Bellard
 *   The original design remains. The terminal itself
 *   has been extended to include xterm CSI codes, among
 *   other features.
 */.xterm{cursor:text;position:relative;user-select:none;-ms-user-select:none;-webkit-user-select:none}.xterm.focus,.xterm:focus{outline:none}.xterm .xterm-helpers{position:absolute;top:0;z-index:5}.xterm .xterm-helper-textarea{padding:0;border:0;margin:0;position:absolute;opacity:0;left:-9999em;top:0;width:0;height:0;z-index:-5;white-space:nowrap;overflow:hidden;resize:none}.xterm .composition-view{background:#000;color:#fff;display:none;position:absolute;white-space:nowrap;z-index:1}.xterm .composition-view.active{display:block}.xterm .xterm-viewport{background-color:#000;overflow-y:scroll;cursor:default;position:absolute;right:0;left:0;top:0;bottom:0}.xterm .xterm-screen{position:relative}.xterm .xterm-screen canvas{position:absolute;left:0;top:0}.xterm .xterm-scroll-area{visibility:hidden}.xterm-char-measure-element{display:inline-block;visibility:hidden;position:absolute;top:0;left:-9999em;line-height:normal}.xterm.enable-mouse-events{cursor:default}.xterm.xterm-cursor-pointer,.xterm .xterm-cursor-pointer{cursor:pointer}.xterm.column-select.focus{cursor:crosshair}.xterm .xterm-accessibility:not(.debug),.xterm .xterm-message{position:absolute;left:0;top:0;bottom:0;right:0;z-index:10;color:transparent;pointer-events:none}.xterm .xterm-accessibility-tree:not(.debug) *::selection{color:transparent}.xterm .xterm-accessibility-tree{-webkit-user-select:text;user-select:text;white-space:pre}.xterm .live-region{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.xterm-dim{opacity:1!important}.xterm-underline-1{text-decoration:underline}.xterm-underline-2{text-decoration:double underline}.xterm-underline-3{text-decoration:wavy underline}.xterm-underline-4{text-decoration:dotted underline}.xterm-underline-5{text-decoration:dashed underline}.xterm-overline{text-decoration:overline}.xterm-overline.xterm-underline-1{text-decoration:overline underline}.xterm-overline.xterm-underline-2{text-decoration:overline double underline}.xterm-overline.xterm-underline-3{text-decoration:overline wavy underline}.xterm-overline.xterm-underline-4{text-decoration:overline dotted underline}.xterm-overline.xterm-underline-5{text-decoration:overline dashed underline}.xterm-strikethrough{text-decoration:line-through}.xterm-screen .xterm-decoration-container .xterm-decoration{z-index:6;position:absolute}.xterm-screen .xterm-decoration-container .xterm-decoration.xterm-decoration-top-layer{z-index:7}.xterm-decoration-overview-ruler{z-index:8;position:absolute;top:0;right:0;pointer-events:none}.xterm-decoration-top{z-index:2;position:relative}.ai-course .response-loop{display:flex;align-items:center;gap:12px;margin:24px 0;flex-wrap:wrap}.ai-course .response-loop>div{flex:1 1 140px;border:1px solid var(--line);background:#f0f2e8;padding:18px;font-size:13px;border-radius:6px}.ai-course .response-loop small{display:block;color:var(--muted);margin-top:8px}.ai-course .walk-stages{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;list-style:none;padding:0;counter-reset:stages}.ai-course .walk-stages li{font-size:11px;background:#e3e9db;padding:12px 8px;margin:0;border-bottom:3px solid transparent;counter-increment:stages}.ai-course .walk-stages li:before{content:counter(stages,decimal-leading-zero);display:block;font:12px ui-monospace,monospace}.ai-course .walk-stages li.current{background:#d3e6cc;border-color:#196b4d}.ai-course .walk-values{display:flex;flex-wrap:wrap;gap:16px;min-height:90px;align-items:center;margin:20px 0}.ai-course .walk-neuron{display:grid;place-items:center;width:70px;height:70px;border:1px solid #759067;border-radius:50%;background:hsl(96 38% calc(96% - var(--amount)*45%));font:13px ui-monospace,monospace}.ai-course .walk-candidate{display:flex;align-items:center;gap:14px;width:100%;font:12px ui-monospace,monospace}.ai-course .walk-candidate>span:first-child{width:60px}.ai-course .walk-candidate meter{flex:1;min-width:0;width:100%;height:20px;accent-color:var(--green)}.ai-course .cluster-lab{--ink:#e9edf4;--muted:#a2b4c8;--line:#304159;--paper:#101c2c;--green:#82e5cc;background:radial-gradient(at 40% 0%,#20334c,#0b1422 65%);border:1px solid #344a64;border-radius:12px;margin:28px 0;padding:26px;color:var(--ink);box-shadow:0 18px 50px #14243322}.ai-course .cluster-lab h3{color:#f1f4fa;font:26px Georgia,serif;margin:10px 0 0}.ai-course .cluster-header{display:flex;flex-wrap:wrap;justify-content:space-between;gap:15px}.ai-course .cluster-tag{font:10px ui-monospace,monospace;color:#b2c4d9;padding:8px 10px;border:1px solid #4c617b;border-radius:20px;align-self:start}.ai-course .cluster-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 18px;margin:18px 0}.ai-course .cluster-lab select{background:#15243a;color:#e5edf7;border-color:#4a5c76;font-size:12px}.ai-course .cluster-lab button{background:#172b40;border-color:#527592;color:#e8f6ff}.ai-course .cluster-lab button:hover{background:#25445c}.ai-course .cluster-tokens{display:flex;flex-wrap:wrap;gap:6px;margin:24px 0 10px}.ai-course .cluster-tokens>span{font:14px ui-monospace,monospace;padding:7px 10px;border:1px solid #3f516b;border-radius:5px;color:#95a8c2}.ai-course .cluster-tokens .current{color:#081b20;background:#8aebd5;border-color:#8aebd5;box-shadow:0 0 25px #7de9ce33}.ai-course .cluster-route{display:flex;justify-content:center;align-items:center;gap:10px;flex-wrap:wrap;border-block:1px solid #33445e;padding:20px 0;margin:24px 0 8px;font:11px ui-monospace,monospace}.ai-course .cluster-route strong{color:#ffe1a9}.ai-course #cluster-status{font-size:12px;color:#b8ccdf}.ai-course .cluster-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:22px 0}.ai-course .cluster-card{border:1px solid #334258;background:#101b2b;border-radius:7px;padding:14px;min-width:0;transition:border-color .4s,box-shadow .4s}.ai-course .cluster-card.selected{border-color:#99d1c9;box-shadow:inset 0 0 28px #54cbb411,0 0 18px #4bdfbd14}.ai-course .cluster-card-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;font:12px ui-monospace,monospace}.ai-course .cluster-card-heading>span{font-size:9px;color:#86d5c9;border:1px solid #35665f;border-radius:3px;padding:2px 5px}.ai-course .cluster-card.skipped .cluster-card-heading{color:#8495aa}.ai-course .cluster-card.skipped .cluster-card-heading>span{color:#9eaec1;border-color:#3e4b61}.ai-course .cluster-dots{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;margin:20px 0}.ai-course .cluster-lab .cluster-dot{width:24px;height:24px;min-height:24px;padding:0;border-radius:50%;margin:auto;display:grid;place-items:center;border:1px solid #71859a;background:transparent;font:14px ui-monospace,monospace}.ai-course .cluster-lab .cluster-dot.positive{background:rgb(255 169 87 / calc(.25 + var(--activation)*.75));border-color:#ffc58d;box-shadow:0 0 calc(4px + var(--activation)*18px) rgb(255 156 65 / calc(.1 + var(--activation)*.65))}.ai-course .cluster-lab .cluster-dot.zero{border-style:dashed}.ai-course .cluster-lab .cluster-dot.absent{border:0;color:#65748b}.ai-course .cluster-card small{display:block;font:9px/1.6 ui-monospace,monospace;color:#a0b3cc}.ai-course .cluster-legend{display:flex;flex-wrap:wrap;gap:15px;font:10px ui-monospace,monospace;color:#b9c8dc}.ai-course .cluster-legend i{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:5px}.ai-course .cluster-legend .lit{background:#ffb873;box-shadow:0 0 8px #e9a065}.ai-course .cluster-legend .zero{border:1px dashed #acbdcf}.ai-course .cluster-inspect{border:1px solid #33475e;background:#142337;padding:14px;border-radius:5px;font:11px/1.8 ui-monospace,monospace;min-height:80px}.ai-course .cluster-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:22px 0}.ai-course .cluster-metrics>div{border-top:1px solid #46607a;padding-top:12px}.ai-course .cluster-metrics span{display:block;font-size:10px;color:#b1c3d5}.ai-course .cluster-metrics strong{display:block;font:30px/1.6 ui-monospace,monospace;color:#9fe7d6}.ai-course .cluster-lab .cluster-note{font-size:11px;line-height:1.7;color:#a8bad1}.ai-course .cluster-visit{display:flex;align-items:center;gap:14px;font:12px ui-monospace,monospace;margin:8px 0}.ai-course .cluster-visit meter{flex:1;width:100%;accent-color:#8ef1d7}.ai-course .cluster-visit span{min-width:30px}.ai-course .cluster-lab pre{background:#07111f;color:#cfdae8}.ai-course .viewer-heading{max-width:820px;padding:28px 0}.ai-course .viewer-heading h1{font-size:clamp(32px,5vw,56px);margin:20px 0}.ai-course .viewer-heading p{font-size:14px}.ai-course .viewer-heading nav{display:flex;gap:20px;font-size:12px}.ai-course .viewer-main>.observer{margin-top:10px}.ai-course .viewer-main .observer{padding:20px}.ai-course .token-instrument{background:radial-gradient(ellipse at center,#0e1427,#080b14 75%);color:#d9dce8;border:1px solid #283049;border-radius:5px;padding:26px;margin:25px -8px;font-family:ui-monospace,Consolas,monospace;box-shadow:0 15px 55px #131d331c}.ai-course .instrument-top{display:grid;grid-template-columns:1.2fr 1fr;gap:20px;border-bottom:1px solid #252c3d;padding-bottom:18px}.ai-course .instrument-model{font-size:12px;font-weight:750;letter-spacing:2px;color:#f3f1f7}.ai-course .instrument-source{display:block;font:10px/1.7 system-ui;color:#a0a4b4;margin-top:7px}.ai-course .instrument-prompt{font:14px/1.6 system-ui;margin:20px 0 10px}.ai-course .instrument-answer{font-size:9px;letter-spacing:2px;color:#83c9c3}.ai-course .instrument-answer strong{margin-left:15px;font:19px system-ui;letter-spacing:0;color:#a5fff1}.ai-course .instrument-clock{text-align:right}.ai-course .instrument-clock>span{font-size:9px;letter-spacing:2px;color:#e5ad9c}.ai-course .instrument-clock>strong{display:block;font:700 clamp(30px,5vw,70px)/1.5 system-ui;color:#ffeadf;text-shadow:0 0 24px #f7865f55;letter-spacing:-2px}.ai-course .instrument-clock p{font:10px/1.6 system-ui;color:#aaa5b5;margin-top:0}.ai-course .instrument-live{font:10px/1.7 ui-monospace,monospace;color:#8ee2ce;padding:12px 0;border-bottom:1px solid #252c3d;min-height:42px}.ai-course .instrument-columns{display:grid;grid-template-columns:180px minmax(0,1fr) 230px;gap:24px;margin:24px 0;min-height:430px}.ai-course .instrument-sidebar{font-size:9px;border-right:1px solid #252c3d;padding-right:14px}.ai-course .instrument-sidebar>span:first-child{letter-spacing:2px;color:#a1a0b3}.ai-course .instrument-sidebar>strong{display:block;color:#f2edf4;font:700 42px/1.2 system-ui}.ai-course .instrument-sidebar small{font-size:16px;color:#8f8fa5}.ai-course .instrument-badge{display:block;color:#7bb8e7;font-size:8px;letter-spacing:.5px;border:1px solid #37516f;padding:4px;margin:10px 0}.ai-course .instrument-sidebar ol{list-style:none;padding:0;margin:18px 0}.ai-course .instrument-sidebar li{font:10px/1.6 system-ui;color:#9395a8;border-bottom:1px solid #222a3e;padding:6px 4px;margin:0}.ai-course .instrument-sidebar li.current{color:#faf2ff;border-left:3px solid #b686ed;border-bottom:2px solid #b686ed;box-shadow:0 2px 15px #be73ff22}.ai-course .instrument-sidebar p{color:#848da4;font-size:9px;line-height:1.7}.ai-course .instrument-center h3{font:650 22px system-ui;color:#b884f4;margin:0 0 8px}.ai-course #instrument-term-label{font-size:11px;color:#9694ac;margin:0}.ai-course .instrument-equation{display:flex;flex-direction:column;justify-content:center;min-height:250px;padding:15px 0}.ai-course .instrument-symbolic{font:italic 21px/1.7 Georgia,serif;color:#e5dfed}.ai-course #instrument-equation{font:20px/1.7 Georgia,serif;color:#9be9dc;overflow-wrap:anywhere}.ai-course #instrument-result{font:12px/1.7 ui-monospace,monospace;color:#b7aec9}.ai-course .instrument-readout{border-top:1px solid #292c40;padding-top:18px}.ai-course .instrument-readout span{display:block;font-size:9px;color:#aaa5b5}.ai-course .instrument-readout strong{font-size:24px;color:#c5a6ff}.ai-course .instrument-weights{border-left:1px solid #252c3d;padding-left:18px}.ai-course .instrument-weights h4{font:600 13px/1.5 system-ui;margin:0;color:#e7e2ee}.ai-course .instrument-weights>p{font-size:9px;margin:4px 0 12px;color:#a7a4b9}.ai-course #instrument-matrix{display:block;width:88px;height:235px;margin:0 auto 15px;image-rendering:pixelated;border:1px solid #36354e}.ai-course .instrument-mini{display:grid;grid-template-columns:80px minmax(0,1fr);gap:14px}.ai-course .instrument-mini p{font:8px/1.5 system-ui;color:#b5adc7;margin:5px 0}.ai-course .instrument-mini canvas{width:100%;height:80px;display:block;image-rendering:pixelated}.ai-course .instrument-progress-label{display:flex;justify-content:space-between;gap:18px;font-size:9px;color:#aaa4bc;border-top:1px solid #252c3d;padding-top:20px}.ai-course .instrument-progress-label strong{color:#eee5ff;font-size:16px}.ai-course .instrument-strip{display:flex;gap:2px;height:28px;margin:18px 0 24px}.ai-course .instrument-strip>div{flex:1;position:relative;background:linear-gradient(90deg,#8dc8df var(--progress,0%),#25304a var(--progress,0%));border-right:4px solid #9065be}.ai-course .instrument-strip>div.current{box-shadow:0 0 15px #8dcbef55}.ai-course .instrument-strip span{position:absolute;top:30px;left:0;font-size:8px;color:#b9a9cf}.ai-course .instrument-scrub-label{font-size:9px;color:#a8a8bc;margin-top:26px}.ai-course .token-instrument input[type=range]{accent-color:#bda0f0}.ai-course .instrument-controls{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:15px 0}.ai-course .instrument-controls button{color:#dfd5f5;background:#191b31;border-color:#5c5274;font-size:10px}.ai-course .instrument-controls button:hover{background:#29253f}.ai-course .instrument-controls label{margin:0 0 0 auto;color:#c6b9d5;font-size:9px}.ai-course .instrument-controls select{display:block;padding:7px;background:#171b2d;border-color:#514b67;color:#e1d6ed;font:10px system-ui}.ai-course .instrument-footnote{font:10px/1.7 system-ui;color:#a3a0b6}.ai-course #observer-advanced>summary{font-size:13px}.ai-course #observer-advanced{margin-top:25px}@media(min-width:1250px){.ai-course .cluster-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.ai-course .reading-layout:has(.cluster-lab){grid-template-columns:170px minmax(0,1fr);gap:25px}.ai-course .cluster-dots{gap:7px}.ai-course .cluster-lab .cluster-dot{width:21px;height:21px;min-height:21px}.ai-course .cluster-card{padding:10px}.ai-course .cluster-card-heading{font-size:10px}}@media(max-width:1000px){.ai-course .instrument-columns{grid-template-columns:140px minmax(0,1fr) 170px;gap:16px}.ai-course .instrument-mini{grid-template-columns:60px minmax(0,1fr)}.ai-course .token-instrument{padding:18px}.ai-course .instrument-sidebar{padding-right:10px}}@media(max-width:700px){.ai-course .instrument-columns{grid-template-columns:1fr 1fr;gap:16px}.ai-course .instrument-sidebar{grid-column:1/-1;border-right:0;border-bottom:1px solid #252c3d;padding-bottom:12px}.ai-course .instrument-sidebar>strong{display:inline;margin-left:10px;font-size:28px}.ai-course .instrument-sidebar .instrument-badge{display:inline-block;margin-left:15px}.ai-course .instrument-sidebar ol{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0}.ai-course .instrument-sidebar li{font-size:9px}.ai-course .instrument-sidebar p{margin:8px 0}.ai-course .instrument-equation{min-height:220px}.ai-course .instrument-center h3{font-size:18px}.ai-course .instrument-top{grid-template-columns:1fr}.ai-course .instrument-clock{text-align:left;border-top:1px solid #252c3d;padding-top:14px}.ai-course .instrument-clock>strong{font-size:42px;line-height:1.2}.ai-course .instrument-prompt{margin:12px 0}.ai-course .instrument-controls label{margin:0}.ai-course .cluster-lab{padding:18px}.ai-course .cluster-dots{gap:7px}.ai-course .cluster-lab .cluster-dot{width:24px;height:24px;min-height:24px}.ai-course .cluster-card{padding:12px}.ai-course .walk-stages{grid-template-columns:repeat(2,minmax(0,1fr))}.ai-course .viewer-main .observer{padding:14px}.ai-course .instrument-progress-label{flex-wrap:wrap}}@media(max-width:450px){.ai-course .cluster-grid{grid-template-columns:1fr}.ai-course .cluster-dots{grid-template-columns:repeat(6,1fr);gap:10px}.ai-course .cluster-controls,.ai-course .instrument-columns{grid-template-columns:1fr}.ai-course .instrument-weights{border-left:0;border-top:1px solid #252c3d;padding:18px 0 0;display:grid;grid-template-columns:90px 1fr;gap:8px 18px}.ai-course .instrument-weights h4,.ai-course .instrument-weights>p{grid-column:1/-1}.ai-course #instrument-matrix{height:170px;width:70px;margin:0}.ai-course .instrument-mini{grid-template-columns:1fr;gap:5px}.ai-course .instrument-mini>div:first-child canvas{width:65px;height:65px}.ai-course .instrument-mini>div:last-child canvas{height:65px}.ai-course .instrument-equation{min-height:170px}.ai-course .instrument-symbolic{font-size:19px}.ai-course .token-instrument{padding:14px}.ai-course .instrument-readout{margin-bottom:8px}.ai-course .response-loop{flex-direction:column;align-items:stretch}.ai-course .response-loop>div{flex:auto}.ai-course .response-loop>b{align-self:center;transform:rotate(90deg)}}@media(prefers-reduced-motion:reduce){.ai-course .cluster-card{transition:none}}.ai-course .reference-recording video{display:block;width:100%;height:auto;margin-top:18px;border-radius:6px;background:#080b14}.ai-course .cluster-dot.positive{animation:cluster-neuron-arrive .5s ease-out both;animation-delay:calc(var(--unit)*30ms)}@keyframes cluster-neuron-arrive{0%{opacity:.25;transform:scale(.8)}to{opacity:1;transform:scale(1)}}@media(prefers-reduced-motion:reduce){.ai-course .cluster-dot.positive{animation:none}}.ai-course{--ink:#19372f;--green:#196b4d;--muted:#596e63;--line:#d6dfd1;--paper:#fffef9;--pale:#edf2e6;--gold:#b6842b;color:var(--ink);background:var(--paper);font:16px/1.75 system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color-scheme:light;overflow-wrap:anywhere}.ai-course *{box-sizing:border-box}.ai-course a{color:var(--green);text-underline-offset:4px}.ai-course :is(a,button,summary,input,select):focus-visible{outline:3px solid #b6842b;outline-offset:4px}.ai-course .course-header{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;min-height:74px;padding:16px max(5%,calc((100% - 1280px)/2));border-bottom:1px solid var(--line);background:var(--paper)}.ai-course .brand{font-size:23px;font-weight:850;letter-spacing:-1px;text-decoration:none;color:var(--ink)}.ai-course .brand span{font-weight:450}.ai-course .course-header nav{display:flex;gap:20px;flex-wrap:wrap;font-size:12px}.ai-course .course-main{max-width:1280px;margin:auto;padding:0 5% 50px}.ai-course .course-top{display:flex;justify-content:space-between;gap:16px;padding:24px 0;font-size:12px}.ai-course .course-top span{font:10px ui-monospace,monospace;letter-spacing:1px;color:var(--muted);align-self:center}.ai-course .course-hero{padding:45px 0 38px;max-width:860px}.ai-course .eyebrow{font:700 11px/1.6 ui-monospace,Consolas,monospace;letter-spacing:1.2px;color:var(--green);margin:0 0 16px}.ai-course h1{font:normal clamp(40px,5.5vw,74px)/1.06 Georgia,serif;letter-spacing:-2px;margin:0 0 24px;color:var(--ink)}.ai-course .lede{font-size:20px;line-height:1.65;max-width:740px;margin:0 0 18px}.ai-course p{margin:14px 0;line-height:1.8}.ai-course .small{font-size:12px;color:var(--muted)}.ai-course .goals{display:flex;flex-wrap:wrap;gap:8px 28px;padding:0 0 0 18px;margin-top:24px;font-size:13px}.ai-course .goals li{flex:1 1 200px;padding-right:15px}.ai-course .lesson-tabs{display:flex;flex-wrap:wrap;gap:10px;border-block:1px solid var(--line);padding:12px 0;margin:0 0 24px}.ai-course .lesson-tabs a{padding:8px 15px;border-radius:4px;text-decoration:none;font-size:13px}.ai-course .lesson-tabs a[aria-current]{background:var(--green);color:var(--paper)}.ai-course .reading-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:50px}.ai-course .contents{padding-top:30px;align-self:start;position:sticky;top:16px}.ai-course .contents nav{display:flex;flex-direction:column;gap:13px}.ai-course .contents nav a{font-size:12px;text-decoration:none;line-height:1.6}.ai-course .margin-note{margin:30px 0;border-top:1px solid var(--line);padding:18px 0;font-size:12px}.ai-course .margin-note p{color:var(--muted)}.ai-course .reading-section{padding:38px 0;border-bottom:1px solid var(--line);scroll-margin-top:24px}.ai-course h2{font:normal clamp(29px,3.2vw,40px)/1.2 Georgia,serif;letter-spacing:-.7px;margin:0 0 22px;color:var(--ink)}.ai-course h3{font:650 15px/1.5 system-ui;margin:20px 0 12px;color:var(--ink)}.ai-course ol,.ai-course ul{padding-left:24px}.ai-course li{margin:12px 0;padding-left:3px}.ai-course .textbook-note{background:#edf2e6;border-left:4px solid #79966a;border-radius:0 5px 5px 0;padding:18px 22px;margin:26px 0;font-size:14px}.ai-course .textbook-note>strong{font:700 11px ui-monospace,monospace;letter-spacing:.8px;color:var(--green)}.ai-course .textbook-note p{margin:9px 0 0}.ai-course .predict{background:#f5efdd;border:1px solid #e5d8b9;border-radius:5px;padding:18px 22px;font:italic 19px/1.7 Georgia,serif;margin:26px 0}.ai-course .predict span{display:block;font:700 10px ui-monospace,monospace;letter-spacing:1px;color:#82601f;margin-bottom:8px}.ai-course .demo{border:1px solid #c7d3bf;border-radius:8px;background:#f5f7ee;padding:25px;margin:28px 0;min-width:0;box-shadow:0 5px #e8ecdf}.ai-course .demo-heading{display:flex;align-items:start;justify-content:space-between;gap:12px;flex-wrap:wrap}.ai-course .demo-tag{font:10px ui-monospace,monospace;color:var(--muted)}.ai-course button,.ai-course .button{font:600 12px/1.5 system-ui;display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid #a8bea5;border-radius:5px;background:#fffef9;color:var(--ink);padding:10px 14px;min-height:42px;cursor:pointer;text-decoration:none;white-space:normal}.ai-course button:hover,.ai-course .button:hover{background:#e1ead7}.ai-course .primary{background:var(--green);color:var(--paper);border-color:var(--green)}.ai-course .primary:hover{background:#125439}.ai-course button:disabled{opacity:.55;cursor:default}.ai-course label{display:block;font-size:13px;margin:14px 0 7px;font-weight:600}.ai-course input:not([type=radio]),.ai-course select{font:14px system-ui;width:100%;border:1px solid #afc0a8;border-radius:5px;padding:11px;color:var(--ink);background:var(--paper);min-width:0}.ai-course input[type=range]{accent-color:var(--green);padding:0;margin:10px 0;cursor:pointer}.ai-course output{font-family:ui-monospace,monospace;padding-left:12px}.ai-course .control-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin:14px 0}.ai-course .control-row>label{flex:1 1 140px;margin:0 12px 0 0;max-width:210px}.ai-course .split{display:grid;grid-template-columns:1fr 1fr;gap:24px;min-width:0}.ai-course .split>div{min-width:0}.ai-course .token-sequence{display:flex;flex-wrap:wrap;gap:6px;align-items:center}.ai-course .token{display:inline-block;border:1px solid #b2c7aa;background:#fffef9;border-radius:4px;padding:5px 9px;font:14px ui-monospace,monospace}.ai-course .token.generated{background:#dce9cf;border-color:#7d9d6e}.ai-course .bar-row{display:grid;grid-template-columns:65px minmax(0,1fr) 48px;gap:10px;align-items:center;margin:9px 0;font:11px ui-monospace,monospace}.ai-course .bar-track{height:12px;border-radius:3px;background:#dfe6d8;overflow:hidden}.ai-course .bar-fill{height:100%;background:#477e54;min-width:1px}.ai-course .bar-value{text-align:right}.ai-course .network{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:20px 0}.ai-course .network-layer{border:1px solid #d3ddc9;border-radius:6px;padding:10px 5px;background:var(--paper);text-align:center;position:relative}.ai-course .network-layer:not(:last-child):after{content:"→";position:absolute;right:-12px;top:48%;color:#658657;z-index:1}.ai-course .network-layer strong{font-size:10px;font-weight:600;display:block;min-height:36px;line-height:1.5}.ai-course .neuron{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;border:1px solid #658d57;margin:10px auto;font:11px ui-monospace,monospace;color:#19372f}.ai-course details{border-top:1px solid var(--line);padding:15px 0;font-size:13px;margin-top:20px}.ai-course summary{font-size:13px;font-weight:650;cursor:pointer}.ai-course pre{margin:14px 0;background:#203e33;color:#f3f3df;padding:18px;border-radius:5px;font:12px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere;max-width:100%;-moz-tab-size:2;tab-size:2}.ai-course code{font:.85em ui-monospace,Consolas,monospace;background:#e7eddf;border-radius:3px;padding:2px 4px}.ai-course .copy-box{margin:24px 0}.ai-course .copy-box pre{margin-bottom:9px}.ai-course .example-answer{border:1px dashed #9ab08b;padding:16px;margin-top:20px;background:var(--paper);font-size:13px}.ai-course .example-answer p{margin-bottom:0}.ai-course .trace{padding-left:25px}.ai-course .trace li{font-size:13px;border-bottom:1px solid #d8e2ce;padding:12px 6px;animation:trace-enter .25s ease-out}.ai-course .trace strong{color:var(--green)}.ai-course .flow-line{display:flex;flex-wrap:wrap;gap:12px;align-items:center;background:#eaf0e2;border:1px solid var(--line);padding:20px;border-radius:6px;margin:25px 0;font:12px ui-monospace,monospace}.ai-course .flow-line b{color:#7e9a6b}.ai-course .concept-pair{background:#f0f3e9;padding:24px;border:1px solid var(--line);border-radius:6px;font-size:13px}.ai-course .expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0}.ai-course .expert{padding:18px 10px;border:1px solid #b9c9af;border-radius:5px;font-size:12px;background:var(--paper)}.ai-course .expert.active{background:#dfeacb;border:2px solid #638341;padding:17px 9px}.ai-course .expert b{display:block;font-size:15px}.ai-course .expert small{display:block;margin-top:8px}.ai-course .game-board{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;width:100%;max-width:285px}.ai-course .game-board button{aspect-ratio:1;min-width:0;font: 30px Georgia,serif;position:relative;padding:15px}.ai-course .game-board small{position:absolute;top:5px;left:8px;font:10px ui-monospace,monospace;color:var(--muted)}.ai-course .game-board .best{border:3px solid var(--green);background:#e0ebd4}.ai-course #move-scores{font-size:12px}.ai-course .table-wrap{overflow-x:auto;margin:20px 0}.ai-course table{border-collapse:collapse;width:100%;font-size:12px}.ai-course caption{text-align:left;font-size:11px;color:var(--muted);margin-bottom:8px}.ai-course th,.ai-course td{text-align:left;border-bottom:1px solid #cedbc5;padding:10px 9px;vertical-align:top}.ai-course th{background:#e4ecdb;color:var(--ink)}.ai-course .concept-check{border:1px solid #bdcdb2;border-radius:6px;margin:28px 0;padding:20px;min-width:0}.ai-course legend{padding:0 8px;font-size:15px;font-weight:650;line-height:1.6}.ai-course .concept-check label{font-weight:400;display:flex;gap:12px;align-items:baseline;font-size:14px;line-height:1.7}.ai-course input[type=radio]{accent-color:var(--green);flex-shrink:0}.ai-course .concept-check p{font-size:13px;margin-bottom:0;color:var(--green);min-height:26px}.ai-course .teacher-notes{margin:35px 0}.ai-course .lesson-footer{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:28px 0;font-size:13px}.ai-course .course-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:20px 0 45px}.ai-course .course-card{border:1px solid #cdd9c2;border-top:4px solid #60844f;border-radius:6px;background:#f0f4e9;padding:25px;text-decoration:none;color:var(--ink)}.ai-course .course-card:nth-child(2){border-top-color:#b18b46;background:#f7f0df}.ai-course .course-card:nth-child(3){border-top-color:#70969a;background:#edf3f0}.ai-course .course-card h2{font-size:30px;margin-bottom:15px}.ai-course .course-card p{font-size:14px}.ai-course .course-card strong{font-size:12px;color:var(--green)}.ai-course .page-footer{font-size:12px;border-top:1px solid var(--line);padding:25px 0;margin-top:40px;color:var(--muted)}.ai-course .no-js{padding:15px;background:#f5efdd;font-size:13px}@keyframes trace-enter{0%{opacity:.3;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@media(prefers-reduced-motion:reduce){.ai-course .trace li{animation:none}}@media(max-width:1000px){.ai-course .reading-layout{grid-template-columns:160px minmax(0,1fr);gap:28px}.ai-course .course-main{padding-inline:4%}.ai-course .course-cards{gap:12px}.ai-course .course-card{padding:20px}}@media(max-width:760px){.ai-course .reading-layout{display:block}.ai-course .contents{position:static;padding:10px 0 25px;border-bottom:1px solid var(--line)}.ai-course .contents nav{display:flex;flex-direction:row;flex-wrap:wrap;gap:10px 20px}.ai-course .margin-note{display:none}.ai-course .course-hero{padding:30px 0}.ai-course .split,.ai-course .course-cards{grid-template-columns:1fr}.ai-course .demo{padding:18px}.ai-course .course-main{padding-inline:20px}.ai-course .course-header{padding:16px 20px}.ai-course .course-header nav{gap:12px;font-size:11px}.ai-course .course-top span{display:none}.ai-course .network{gap:8px}.ai-course .network-layer:not(:last-child):after{right:-9px}.ai-course .neuron{width:36px;height:36px;font-size:10px}.ai-course .network-layer strong{font-size:9px;min-height:42px}.ai-course .network-layer{padding:9px 3px}.ai-course .lesson-tabs a{font-size:12px;padding:7px 10px}.ai-course .expert{padding:12px 7px;font-size:11px}.ai-course .expert.active{padding:11px 6px}.ai-course .expert b{font-size:12px}.ai-course .textbook-note{padding:17px}.ai-course .reading-section{padding-block:30px}.ai-course .goals{display:block}.ai-course .game-board{max-width:285px}.ai-course .course-top{padding-block:18px}.ai-course .lede{font-size:18px}.ai-course .concept-check{padding:16px}.ai-course .flow-line{padding:15px;font-size:11px}.ai-course .control-row button{flex:1 1 120px}}@media print{.ai-course .contents,.ai-course button,.ai-course .course-header,.ai-course .lesson-tabs{display:none}.ai-course .reading-layout{display:block}.ai-course .course-main{padding:0}.ai-course .demo{break-inside:avoid;box-shadow:none}.ai-course pre{color:#111;background:#eee}.ai-course details{display:block}}.ai-course .lesson-diagram{margin:28px 0;padding:22px;border:1px solid #c7d4c0;border-radius:8px;background:#fffef9;min-width:0;max-width:100%}.ai-course .lesson-diagram figcaption h3{font-size:16px;margin:0 0 10px;line-height:1.5}.ai-course .lesson-diagram figcaption p{font-size:13px;line-height:1.75;color:var(--muted);margin:0 0 20px}.ai-course .diagram-scroll{max-width:100%;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-color:#98ad8b #eef2e8;scrollbar-width:thin;border-radius:5px;background:#fbfcf7}.ai-course .diagram-scroll:focus-visible{outline:3px solid #b6842b;outline-offset:4px}.ai-course .concept-svg{display:block;width:100%;min-width:760px;height:auto;overflow:visible}.ai-course .diagram-input{--diagram-fill:#efe8f4;--diagram-stroke:#9a7faa}.ai-course .diagram-query{--diagram-fill:#e5f1fa;--diagram-stroke:#668faa}.ai-course .diagram-key{--diagram-fill:#e8f0df;--diagram-stroke:#779460}.ai-course .diagram-value{--diagram-fill:#fff0d8;--diagram-stroke:#b78b49}.ai-course .diagram-neutral{--diagram-fill:#f4f6ee;--diagram-stroke:#a0b09b}.ai-course .diagram-inactive{--diagram-fill:#f1f2ef;--diagram-stroke:#a7afa2;opacity:.7}.ai-course .diagram-node rect,.ai-course .diagram-node>path{fill:var(--diagram-fill,#f4f6ee);stroke:var(--diagram-stroke,#a0b09b);stroke-width:1.6}.ai-course .diagram-inactive rect{stroke-dasharray:5 4}.ai-course .diagram-label{fill:#19372f;font:600 17px system-ui,-apple-system,sans-serif}.ai-course .diagram-detail{fill:#496252;font:14px system-ui,-apple-system,sans-serif}.ai-course .diagram-vector{fill:#3d594b;font:13px ui-monospace,SFMono-Regular,Consolas,monospace}.ai-course .diagram-formula{fill:#254b3a;font:16px ui-monospace,SFMono-Regular,Consolas,monospace}.ai-course .diagram-edge-label{fill:#284e3b;font:15px system-ui,-apple-system,sans-serif;paint-order:stroke;stroke:#fbfcf7;stroke-width:5px;stroke-linejoin:round}.ai-course .diagram-matrix{fill:#556e5e;font:12px ui-monospace,Consolas,monospace;paint-order:stroke;stroke:#fbfcf7;stroke-width:5px}.ai-course .diagram-panel-title{fill:#254b3a;font:600 17px system-ui,-apple-system,sans-serif}.ai-course .diagram-link{fill:none;stroke:#527160;stroke-width:1.7;stroke-linejoin:round}.ai-course .diagram-branch{fill:none;stroke:#8a9f80;stroke-width:1.4;stroke-linejoin:round}.ai-course .query-bus{fill:none;stroke:#668faa;stroke-width:1.6;stroke-dasharray:5 4}.ai-course .diagram-lifeline{fill:none;stroke:#bcc9b4;stroke-width:1.3;stroke-dasharray:5 5}.ai-course .diagram-frame{fill:#f5f7ef;stroke:#c9d7be;stroke-width:1.2}.ai-course .softmax-group{fill:#edf2e7;stroke:#c1d1b5;stroke-width:1.2}.ai-course .lesson-diagram .diagram-note{font-size:12px;line-height:1.75;color:var(--muted);margin:18px 0 0}.ai-course .diagram-scroll-hint{display:none;font-size:11px;color:var(--muted);margin:12px 0 0}.ai-course .concept-flow{display:grid;grid-template-columns:var(--diagram-columns);gap:6px;align-items:stretch;margin:18px 0 10px}.ai-course .flow-node{min-width:0;padding:17px 12px;border:1.5px solid var(--diagram-stroke,#a0b09b);background:var(--diagram-fill,#f4f6ee);border-radius:7px;display:flex;flex-direction:column;justify-content:center;text-align:center}.ai-course .flow-node strong{font-size:13px;line-height:1.5;display:block;margin-bottom:9px}.ai-course .flow-node span{font-size:12px;line-height:1.65;color:#496252}.ai-course .flow-arrow{display:grid;place-items:center;font:22px Georgia,serif;color:#68835b}.ai-course .demo>.lesson-diagram{margin-inline:0;padding:18px;background:#fffef9}@media(max-width:1100px){.ai-course .concept-flow{grid-template-columns:1fr}.ai-course .flow-node{flex-direction:row;align-items:center;gap:18px;text-align:left;justify-content:flex-start}.ai-course .flow-node strong{flex:0 0 150px;margin:0}.ai-course .flow-arrow{transform:rotate(90deg);height:22px}.ai-course .diagram-scroll-hint{display:block}}@media(max-width:760px){.ai-course .lesson-diagram{padding:17px;margin:24px 0}.ai-course .lesson-diagram figcaption p{font-size:13px}.ai-course .flow-node{display:block;padding:14px 16px}.ai-course .flow-node strong{font-size:14px;margin-bottom:6px}.ai-course .flow-node span{font-size:13px}.ai-course .concept-flow{gap:4px}.ai-course .demo>.lesson-diagram{padding:13px}.ai-course .lesson-diagram figcaption h3{font-size:15px}}@media print{.ai-course .diagram-scroll{overflow:visible}.ai-course .concept-svg{min-width:0}.ai-course .diagram-scroll-hint{display:none}.ai-course .lesson-diagram{break-inside:avoid}.ai-course .concept-flow{grid-template-columns:var(--diagram-columns)}.ai-course .flow-node{display:block}.ai-course .flow-arrow{transform:none}}.ai-course .diagram-weighted-vector{fill:#3d594b;font:12px ui-monospace,SFMono-Regular,Consolas,monospace}.ai-course .project-planner textarea{display:block;width:100%;max-width:100%;margin-top:8px;padding:12px;border:1px solid #afbea7;border-radius:5px;background:var(--paper);color:var(--ink);font:15px/1.6 system-ui,sans-serif;resize:vertical}.ai-course .project-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 20px}.ai-course .project-fields>label{min-width:0}.ai-course .project-fields>label:last-child{grid-column:1/-1}.ai-course .project-planner .copy-box{margin-top:24px}.ai-course .project-planner button:disabled{opacity:.55;cursor:default}.ai-course .project-planner textarea:focus-visible{outline:3px solid #b6842b;outline-offset:4px}@media(max-width:760px){.ai-course .project-fields{grid-template-columns:minmax(0,1fr)}}.ai-course .observer{margin-block:28px;overflow:hidden}.ai-course .observer textarea{display:block;width:100%;max-width:100%;box-sizing:border-box;border:1px solid #afbea7;border-radius:7px;background:#fffef9;color:#244531;padding:12px;font:15px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;resize:vertical}.ai-course .observer .control-row{flex-wrap:wrap;gap:10px}.ai-course .observer .observer-import{display:inline-flex;align-items:center;cursor:pointer;margin:0;font-size:14px}.ai-course .observer-import input{max-width:190px;margin-left:8px;font-size:12px}.ai-course .observer button:disabled{opacity:.5;cursor:default}.ai-course .observer-run-info{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;padding:12px 0;border-block:1px solid #d3dec9;font-size:12px}.ai-course .observer input[type=range]{width:100%;margin:12px 0}.ai-course .observer-context{background:#f1f4eb;border-radius:8px;padding:14px 18px;margin-block:14px}.ai-course .observer-context h3{margin-top:0}.ai-course .observer pre{white-space:pre-wrap;overflow-wrap:anywhere;max-height:260px;overflow:auto;margin-block:10px}.ai-course .observer code{white-space:pre-wrap;overflow-wrap:anywhere}.ai-course .observer .bar-row{grid-template-columns:minmax(80px,1fr) 1fr 65px;gap:7px;font-size:12px}.ai-course .observer-metrics{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px 15px;font-size:13px}.ai-course .observer-metrics dt{color:#536b55}.ai-course .observer-metrics dd{margin:0;font-variant-numeric:tabular-nums;text-align:right}.ai-course .observer-heat-scroll{overflow-x:auto;overscroll-behavior-inline:contain;margin-block:16px;padding-block:8px}.ai-course .observer-heat-row{display:flex;gap:10px;align-items:center;min-width:650px;margin-bottom:6px}.ai-course .observer-heat-row>span{font-size:12px;min-width:52px}.ai-course .observer-heat-row canvas{width:calc(100% - 62px);height:30px;min-width:580px;image-rendering:pixelated;border-radius:3px}.ai-course .observer-heat-row canvas:focus{outline:3px solid #547f39;outline-offset:2px}.ai-course .observer-pipeline{display:grid;grid-template-columns:1fr 24px 1.3fr 24px 1.3fr;gap:8px;align-items:stretch}.ai-course .observer-pipeline>div{padding:16px 12px;background:#edf2e7;border:1px solid #b8c8ae;border-radius:7px;text-align:center}.ai-course .observer-pipeline strong,.ai-course .observer-pipeline span{display:block}.ai-course .observer-pipeline strong{font-size:14px}.ai-course .observer-pipeline span{font-size:12px;color:#50664c}.ai-course .observer-pipeline>span{display:grid;place-items:center;font-size:23px}.ai-course .observer [hidden]{display:none!important}.ai-course #observer-status{min-height:2em}.ai-course #observer-cell{font:13px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;background:#edf2e7;padding:10px 12px;border-radius:5px}@media(max-width:760px){.ai-course .observer{padding:16px}.ai-course .observer .split{display:block}.ai-course .observer .control-row>*{max-width:100%;box-sizing:border-box}.ai-course .observer-import{flex-wrap:wrap;gap:5px}.ai-course .observer-import input{margin-left:0}.ai-course .observer-pipeline{grid-template-columns:1fr}.ai-course .observer-pipeline>span{transform:rotate(90deg)}.ai-course .observer-metrics{font-size:12px}.ai-course .observer .bar-row{grid-template-columns:minmax(70px,1fr) 1fr 60px}}.ai-course .brain-console{--brain-text:#d5e3f1;--brain-muted:#8b9fb6;--brain-line:#253449;position:relative;margin:24px -12px 28px;padding:22px 20px 16px;background:#080e1c;border:1px solid #27384d;border-radius:12px;color:var(--brain-text);font:12px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;box-shadow:0 18px 40px #0b152223;color-scheme:dark;overflow:hidden}.ai-course .brain-console *{box-sizing:border-box}.ai-course .brain-console :is(button,input,canvas):focus-visible{outline:2px solid #a2f5e6;outline-offset:3px}.ai-course .brain-topline{display:flex;align-items:center;justify-content:space-between;gap:14px}.ai-course .brain-kicker{font:10px/1.6 ui-monospace,monospace;letter-spacing:1.6px;color:#91e7d9}.ai-course .brain-console h3{font:600 23px/1.3 system-ui,sans-serif;letter-spacing:-.6px;color:#ecf2ff;margin:7px 0}.ai-course .brain-console h3 span{font-weight:350;color:#a6bad1}.ai-course .brain-console button{min-height:35px;padding:7px 11px;border:1px solid #2b425b;border-radius:4px;background:#101d2d;color:#bbd3e8;font:11px/1.5 ui-monospace,monospace}.ai-course .brain-console button:hover{background:#1d354b}.ai-course .brain-console button[aria-pressed=true]{color:#a5ffed;background:#153430;border-color:#4d9488}.ai-course .brain-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--brain-line);padding-top:15px;margin-top:17px}.ai-course .brain-view-tabs{display:flex;gap:5px}.ai-course .brain-console .brain-pace{display:flex;align-items:center;gap:7px;margin:0;font:10px/1.6 ui-monospace,monospace;color:#a0b2c7}.ai-course .brain-pace input[type=checkbox]{width:14px;min-width:14px;height:14px;padding:0;margin:0;accent-color:#83dfc8}.ai-course .brain-headline{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:21px 0 13px;min-height:73px}.ai-course .brain-headline>div:first-child{min-width:0}.ai-course .brain-headline>div>span{display:block;font-size:9px;letter-spacing:1.2px;color:#8be1d6}.ai-course .brain-headline strong{display:block;font:400 15px/1.65 system-ui,sans-serif;margin-top:6px;color:#e7eff9;overflow-wrap:anywhere}.ai-course .brain-counter{text-align:right;min-width:100px}.ai-course .brain-counter b{font:300 47px/1.05 system-ui,sans-serif;color:#f8e4c7;text-shadow:0 0 24px #f2bc8060}.ai-course .brain-counter span{font-size:8px!important;letter-spacing:.6px!important;margin-top:8px;color:#9bacbf!important}.ai-course .brain-canvas-wrap{position:relative;border:1px solid #26364c;border-radius:7px;overflow:hidden;background:#080e1c}.ai-course #brain-canvas{width:100%;height:360px;display:block;touch-action:pan-y;cursor:grab}.ai-course #brain-canvas:active{cursor:grabbing}.ai-course .brain-canvas-overlay{position:absolute;left:15px;right:15px;top:13px;display:flex;justify-content:space-between;gap:12px;font-size:8px;letter-spacing:1px;color:#93a7bf;pointer-events:none}.ai-course .brain-canvas-overlay span:last-child{color:#dfcaab}.ai-course .brain-canvas-footer{position:absolute;bottom:10px;left:13px;right:13px;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:8px;color:#8ca1ba;pointer-events:none}.ai-course .brain-canvas-footer button{pointer-events:auto;font-size:9px;padding:4px 7px;min-height:26px;background:#0a1423bf}.ai-course .brain-canvas-footer i{display:inline-block;width:5px;height:5px;border-radius:100%;vertical-align:middle;margin:0 4px 0 8px}.ai-course .brain-negative{background:#72b5ff;box-shadow:0 0 9px #72b5ff}.ai-course .brain-positive{background:#ffb978;box-shadow:0 0 9px #ffb978}.ai-course .brain-layer-strip{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:6px;margin:14px 0 22px}.ai-course .brain-layer-strip button{padding:6px 0;min-width:0;display:flex;flex-direction:column;gap:6px;border-color:#233348;color:#869bb3;font-size:10px}.ai-course .brain-layer-strip i{width:22px;height:2px;display:block;background:#26384c;border-radius:1px}.ai-course .brain-layer-strip button[data-state=measured] i{background:#77caba;box-shadow:0 0 7px #77caba70}.ai-course .brain-layer-strip button[data-state=computing]{border-color:#86f3d9;color:#b6ffef;box-shadow:0 0 12px #80ffe41a}.ai-course .brain-inspector{border:1px solid #25354b;border-radius:7px;background:#0c1524;padding:17px 18px}.ai-course .brain-inspector-heading{display:flex;gap:10px;justify-content:space-between;flex-wrap:wrap;font-size:9px;letter-spacing:.9px;color:#b39ed5}.ai-course #brain-equation-source{color:#8b9fb6;font-size:8px;letter-spacing:0}.ai-course .brain-inspector-controls{display:grid;grid-template-columns:1fr 1fr;gap:30px}.ai-course .brain-inspector-controls label{font:10px ui-monospace,monospace;color:#9bb0c9;margin:17px 0 4px}.ai-course .brain-inspector-controls output{font-size:10px;color:#e4d4b7;float:right;padding:0}.ai-course .brain-console input[type=range]{accent-color:#8bd6c7;height:4px;padding:0;margin:14px 0 6px;background:transparent;border:0}.ai-course .brain-console .brain-formula{font:18px/1.5 Georgia,serif;color:#e8e5f4;text-align:center;margin:16px 0 8px}.ai-course .brain-formula span{margin:0 10px;color:#9c87b8}.ai-course .brain-console .brain-equation{font:12px/1.9 ui-monospace,monospace;white-space:pre-wrap;text-align:center;color:#a7efe4;overflow-wrap:anywhere;min-height:48px;margin:10px 0 17px}.ai-course .brain-equation-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;border-top:1px solid #233449;padding-top:13px}.ai-course .brain-equation-stats span{display:block;font-size:8px;letter-spacing:.7px;color:#94a7bd}.ai-course .brain-equation-stats b{font:400 15px/1.7 ui-monospace,monospace;color:#e2d6c3;overflow-wrap:anywhere;display:block;margin-top:3px}.ai-course .brain-console #brain-inspector-note{font:9px/1.8 ui-monospace,monospace;color:#869bb2;margin:13px 0 0}.ai-course .brain-console .brain-caption{font:10px/1.8 system-ui,sans-serif;color:#94a8bd;margin:15px 0 0}.ai-course .brain-console.brain-expanded{position:fixed;top:16px;right:16px;bottom:16px;left:16px;z-index:10000;max-width:1500px;margin:0 auto;padding:24px 30px;overflow:auto;box-shadow:0 0 0 40px #050a14f2;overscroll-behavior:contain}.ai-course .brain-expanded #brain-canvas{height:clamp(280px,48vh,620px)}.ai-course .brain-expanded .brain-inspector{max-width:1060px;margin:auto}.ai-course .brain-expanded .brain-layer-strip{max-width:1060px;margin:14px auto 20px}.ai-course .brain-expanded .brain-caption{max-width:1060px;margin:16px auto}.ai-course .brain-expanded .brain-equation{font-size:16px}.ai-course .brain-expanded .brain-topline h3{font-size:30px}@media(max-width:760px){.ai-course .brain-console{margin-inline:-9px;padding:16px 11px 13px}.ai-course .brain-topline{gap:7px;align-items:start}.ai-course .brain-console h3{font-size:20px}.ai-course .brain-kicker{font-size:8px;letter-spacing:.9px}.ai-course .brain-topline button{font-size:9px;padding:6px}.ai-course .brain-toolbar{gap:13px}.ai-course .brain-headline{gap:7px;min-height:80px}.ai-course .brain-headline strong{font-size:13px}.ai-course .brain-counter{min-width:75px}.ai-course .brain-counter b{font-size:38px}.ai-course .brain-counter span{font-size:6px!important}.ai-course .brain-canvas-overlay{left:9px;right:9px;flex-direction:column;gap:3px;font-size:7px;letter-spacing:.5px}.ai-course #brain-canvas{height:290px}.ai-course .brain-canvas-footer{left:7px;right:7px;gap:5px;font-size:7px}.ai-course .brain-layer-strip{gap:3px;margin-bottom:14px}.ai-course .brain-layer-strip button{min-height:37px;font-size:9px}.ai-course .brain-layer-strip i{width:15px}.ai-course .brain-inspector{padding:12px 11px}.ai-course .brain-inspector-controls{gap:18px}.ai-course .brain-inspector-heading{font-size:8px}.ai-course .brain-equation-stats{gap:6px}.ai-course .brain-equation-stats span{font-size:7px;letter-spacing:0}.ai-course .brain-equation-stats b{font-size:12px}.ai-course .brain-console .brain-formula{font-size:17px}.ai-course .brain-console .brain-equation{font-size:10px}.ai-course .brain-console.brain-expanded{top:6px;right:6px;bottom:6px;left:6px;padding:15px 11px}.ai-course .brain-expanded #brain-canvas{height:38vh;min-height:260px}.ai-course .brain-expanded .brain-topline h3{font-size:22px}}@media print{.ai-course .brain-console{break-inside:avoid;box-shadow:none}.ai-course .brain-console.brain-expanded{position:static;overflow:visible}}.ai-course .brain-run-controls{display:flex;flex-wrap:wrap;gap:7px;margin-top:15px}.ai-course .brain-run-controls button:not(:disabled)[data-brain-action=observer-step]{color:#aaffed;border-color:#538c81;background:#142c2c}.ai-course .brain-console .brain-context{border-left:2px solid #5d8c9d;padding:7px 12px;margin:17px 0 3px;background:#101c2b;font:13px/1.7 ui-monospace,monospace;color:#c0d8e5;max-height:85px;overflow:auto;white-space:pre-wrap}.ai-course .brain-expanded .brain-context{max-height:65px}.ai-course .brain-expanded #brain-canvas{height:clamp(260px,39vh,520px)}@media(max-width:760px){.ai-course .brain-console .brain-context{font-size:11px}.ai-course .brain-run-controls{gap:5px}.ai-course .brain-run-controls button{font-size:10px;padding-inline:9px}.ai-course .brain-expanded #brain-canvas{min-height:230px;height:32vh}}@media(min-width:1100px){.ai-course .brain-console.brain-expanded{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(320px,1fr);grid-template-areas:"top top" "toolbar toolbar" "run run" "context context" "headline headline" "field inspector" "layers inspector" "caption caption";column-gap:22px;align-content:start}.ai-course .brain-expanded .brain-topline{grid-area:top}.ai-course .brain-expanded .brain-toolbar{grid-area:toolbar}.ai-course .brain-expanded .brain-run-controls{grid-area:run}.ai-course .brain-expanded .brain-context{grid-area:context}.ai-course .brain-expanded .brain-headline{grid-area:headline;margin:15px 0 12px;min-height:65px}.ai-course .brain-expanded .brain-canvas-wrap{grid-area:field;align-self:stretch}.ai-course .brain-expanded #brain-canvas{height:clamp(330px,40vh,520px)}.ai-course .brain-expanded .brain-inspector{grid-area:inspector;align-self:stretch;width:100%;margin:0;padding:22px}.ai-course .brain-expanded .brain-inspector-heading{line-height:1.9}.ai-course .brain-expanded .brain-inspector-controls{grid-template-columns:1fr;gap:0;margin-top:12px}.ai-course .brain-expanded .brain-formula{margin-top:25px}.ai-course .brain-expanded .brain-equation{font-size:12px;line-height:2.2;margin:22px 0}.ai-course .brain-expanded .brain-equation-stats{grid-template-columns:1fr;gap:8px}.ai-course .brain-expanded .brain-equation-stats>div{display:flex;justify-content:space-between;align-items:center;gap:12px}.ai-course .brain-expanded .brain-equation-stats b{font-size:14px}.ai-course .brain-expanded .brain-layer-strip{grid-area:layers;width:100%;margin:12px 0 0}.ai-course .brain-expanded .brain-caption{grid-area:caption;width:100%;max-width:none;margin-top:14px}}