:root{--ink:#172b4d;--muted:#5d6c83;--teal:#0c7565;--mint:#75e0c6;--mint-light:#e4f7f0;--violet:#6960ac;--violet-light:#eeeafa;--blue-light:#eaf1fc;--line:#e0e6ee;--paper:#fff;--bg:#f4f6fa;--radius:18px;--shadow:0 4px 22px #172b4d05;--display:Bahnschrift,'Segoe UI',sans-serif;--body:'Segoe UI',Arial,sans-serif;--code:'Cascadia Code',Consolas,monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.65}button,input,select,textarea{font:inherit}button,a,input,select,textarea{ -webkit-tap-highlight-color:transparent}a{color:var(--teal);text-underline-offset:4px}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #5e81ed;outline-offset:4px}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{font-family:var(--display);line-height:1.25;font-weight:600}h1{font-size:36px;letter-spacing:-1.1px}h2{font-size:23px;letter-spacing:-.5px}h3{font-size:18px}small{font-size:12px}svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}button svg{vertical-align:middle} [hidden]{display:none!important}.skip-link{position:fixed;top:-80px;left:12px;background:var(--paper);padding:12px;z-index:100}.skip-link:focus{top:12px}
.sidebar{position:fixed;inset:0 auto 0 0;width:248px;background:var(--ink);color:#b9c6dc;padding:32px 22px;display:flex;flex-direction:column;z-index:20}.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none;font-family:var(--display);font-size:26px;font-weight:600;line-height:1.15}.brand small{display:block;letter-spacing:1.8px;font-family:var(--body);font-size:8px;margin-top:8px;color:#a7bad4}.brand-symbol{width:44px;height:44px;background:var(--mint);color:var(--ink);border-radius:12px;position:relative;text-align:center;padding-top:9px;font-size:29px}.brand-symbol span{position:absolute;right:5px;top:2px;font-size:23px}.workspace-label{font-size:10px;font-weight:600;letter-spacing:1.8px;color:#96a9c6;margin:49px 12px 14px}.nav-link{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:10px;color:#b9c6dc;text-decoration:none;margin-bottom:7px;font-size:14px;font-weight:500}.nav-link:hover{background:#233c60;color:#fff}.nav-link.active{color:var(--mint);background:#284664}.sidebar-bottom{margin-top:auto;font-size:12px;padding:24px 12px 0;border-top:1px solid #ffffff1c}.sidebar-bottom small{display:block;padding-left:18px;color:#96a9c6;margin-top:5px}.status-dot{display:inline-block;width:7px;height:7px;background:var(--mint);border-radius:50%;margin-right:7px}.sidebar-note{font-size:12px;color:#96a9c6;margin-top:24px;line-height:1.7}.shell{margin-left:248px}.topbar{height:80px;padding:0 44px;display:flex;justify-content:space-between;align-items:center;background:var(--paper);border-bottom:1px solid var(--line)}.breadcrumbs{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:13px}.breadcrumbs span{color:#bac4d3}.breadcrumbs strong{font-weight:500;color:var(--ink)}.topbar-actions{display:flex;align-items:center;gap:20px}.offline-tag{font-size:11px;color:var(--muted)}.offline-tag .status-dot{background:var(--teal);width:6px;height:6px}.avatar{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--violet-light);color:var(--violet);text-decoration:none;font-weight:600;font-size:12px}main{max-width:1430px;margin:0 auto;padding:36px 44px 44px;min-height:calc(100vh - 151px)}footer{padding:20px 44px;color:var(--muted);border-top:1px solid var(--line);font-size:11px;display:flex;gap:15px;flex-wrap:wrap}footer span{margin-left:auto}.page-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:26px}.page-heading p{color:var(--muted);margin-top:8px;font-size:14px}.eyebrow{display:block;text-transform:uppercase;font-size:10px;letter-spacing:1.8px;font-weight:700;margin-bottom:12px;color:var(--teal)}.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:9px;background:var(--ink);color:#fff;padding:11px 17px;font-size:13px;font-weight:600;text-decoration:none;line-height:1.4;min-height:43px}.button:hover{background:#2b4568}.button.primary{background:var(--teal)}.button.primary:hover{background:#075c50}.button.secondary{background:var(--paper);border-color:var(--line);color:var(--ink)}.button.secondary:hover{background:#edf1f7}.button.mint{background:var(--mint);color:var(--ink)}.button.danger{background:#b33f4b}.button.small{padding:8px 12px;min-height:36px;font-size:12px}.button-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.text-link{border:0;background:none;color:var(--teal);font-size:13px;font-weight:600;padding:0;text-decoration:none}.text-link:hover{text-decoration:underline}.hero{background:var(--mint-light);border-radius:22px;display:grid;grid-template-columns:1.25fr 1fr;min-height:267px;overflow:hidden;margin-bottom:26px;border:1px solid #d5ece3}.hero-copy{padding:31px 35px}.hero h2{font-size:36px;letter-spacing:-1px;max-width:530px}.hero h2 span{color:var(--teal)}.hero p{max-width:475px;color:#486b64;margin:14px 0 23px;font-size:14px}.stack-visual{padding:29px 32px;position:relative;display:flex;flex-direction:column;justify-content:center;gap:10px;background-image:radial-gradient(#aacfc4 1px,transparent 1px);background-size:17px 17px}.stack-layer{border:1px solid #c4dfd5;background:#fff;border-radius:11px;padding:12px 16px;display:flex;justify-content:space-between;align-items:center;box-shadow:6px 6px 0 #badbce5c;margin-right:15px}.stack-layer:nth-child(2){margin-left:20px;margin-right:0}.stack-layer:nth-child(3){margin-left:40px;margin-right:0}.stack-code{font-family:var(--code);font-size:11px;color:var(--teal);background:#f0f8f5;padding:4px 8px;border-radius:5px}.stack-name{display:flex;align-items:center;gap:10px;font-weight:600;font-size:13px}.stack-icon{font-family:var(--code);color:var(--teal);font-size:15px}.stack-footer{font-family:var(--code);font-size:10px;color:#597b73;margin-top:8px;text-align:right;margin-right:2px}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:30px}.stat-card{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:19px 21px;display:flex;align-items:center;gap:14px}.stat-icon{width:41px;height:41px;display:grid;place-items:center;border-radius:11px;background:var(--blue-light);color:#5575af}.stat-card:nth-child(2) .stat-icon{background:var(--mint-light);color:var(--teal)}.stat-card:nth-child(3) .stat-icon{background:var(--violet-light);color:var(--violet)}.stat-card:nth-child(4) .stat-icon{background:#fff2de;color:#976b25}.stat-number{font-family:var(--display);font-size:25px;line-height:1.3}.stat-label{font-size:11px;color:var(--muted)}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.section-heading h2{font-size:22px}.section-heading p{font-size:12px;color:var(--muted);margin-top:4px}.dashboard-columns{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:25px}.module-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.module-card{background:var(--paper);border:1px solid var(--line);border-radius:15px;padding:21px;transition:transform .15s,border-color .15s}.module-card:hover{border-color:#a1b5cf;transform:translateY(-2px)}.module-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.module-icon{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;background:var(--module-bg,var(--blue-light));color:var(--module-color,#5575af);font-family:var(--code);font-size:17px;font-weight:600}.pill{font-size:10px;border:1px solid var(--line);border-radius:5px;padding:3px 7px;color:var(--muted);white-space:nowrap}.module-card h3{font-size:17px}.module-card p{font-size:12px;color:var(--muted);margin:8px 0 16px;min-height:39px}.module-progress-label{display:flex;justify-content:space-between;color:var(--muted);font-size:10px;margin:12px 0 6px}.progress-track{height:5px;border-radius:5px;background:#edf1f6;overflow:hidden}.progress-fill{height:100%;background:var(--teal);border-radius:5px;transition:width .3s}.module-link{display:flex;align-items:center;justify-content:space-between;margin-top:15px;text-decoration:none;font-size:12px;font-weight:600}.module-link svg{width:15px;height:15px}.rail{display:flex;flex-direction:column;gap:20px}.rail-card{background:var(--paper);border:1px solid var(--line);padding:23px;border-radius:16px}.rail-card h3{margin:10px 0;font-size:20px}.rail-card p{font-size:12px;color:var(--muted);margin:10px 0 18px}.rail-card .button{width:100%}.rail-card.interview{background:var(--ink);color:#fff;border:0;position:relative;overflow:hidden}.interview .eyebrow{color:var(--mint)}.interview p{color:#b9c6dc}.interview .interview-code{font-family:var(--code);color:#49658a;font-size:33px;position:absolute;right:18px;top:9px}.mini-checklist{padding:0;list-style:none;margin:14px 0 20px}.mini-checklist li{display:flex;align-items:flex-start;gap:9px;margin-bottom:12px;font-size:12px}.mini-checklist svg{width:16px;height:16px;color:var(--teal);margin-top:2px}.tip{font-size:12px;color:var(--muted);padding-left:12px;border-left:3px solid var(--mint)}.tip strong{color:var(--ink);display:block;margin-bottom:5px}.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}.two-columns{display:grid;grid-template-columns:1.2fr 1fr;gap:22px}.muted{color:var(--muted)}.small-copy{font-size:13px}.intro-copy{max-width:750px;margin-bottom:24px}.intro-copy p+p{margin-top:10px}.filters{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:22px}.field{display:flex;flex-direction:column;gap:7px;font-size:12px;font-weight:600;color:var(--muted);flex:1;min-width:170px}.field input,.field select,.field textarea,input.search,select.filter{width:100%;border:1px solid #cdd6e3;padding:10px 13px;border-radius:8px;color:var(--ink);background:var(--paper);font-size:14px;min-height:44px}.field textarea{resize:vertical;min-height:100px;line-height:1.6}.search-wrap{position:relative;flex:2;min-width:220px}.search-wrap svg{position:absolute;top:13px;left:13px;color:var(--muted);width:18px}.search-wrap .search{padding-left:42px}.filter{flex:1;min-width:160px}.results-count{font-size:12px;color:var(--muted);margin-bottom:16px}.question-list{display:flex;flex-direction:column;gap:12px}.question-card{background:var(--paper);border:1px solid var(--line);border-radius:13px;overflow:hidden}.question-card.mastered{border-left:4px solid var(--teal)}.question-card summary{cursor:pointer;padding:20px 23px;display:flex;gap:15px;align-items:center;list-style:none}.question-card summary::-webkit-details-marker{display:none}.question-card summary::after{content:'+';font-size:24px;color:#8191a8;margin-left:auto}.question-card[open] summary::after{content:'−'}.question-meta{display:flex;align-items:center;gap:8px;margin-bottom:5px}.question-meta .pill{font-size:9px}.question-title{font-size:15px;font-weight:600;line-height:1.5}.question-check{color:var(--teal);width:20px;flex-shrink:0}.answer{padding:0 23px 23px;border-top:1px solid #f1f3f7}.answer p{margin-top:17px;font-size:14px;line-height:1.8}.answer h4{font-family:var(--body);font-size:12px;font-weight:700;margin-top:20px}.answer ul{font-size:13px;padding-left:19px;margin:9px 0}.answer li{margin-bottom:5px}.answer pre,.code-block{font-family:var(--code);font-size:12px;padding:17px;border-radius:10px;background:#172b4d;color:#d1e5fa;line-height:1.7;overflow:auto;white-space:pre;tab-size:2;margin:17px 0}.pitfall{background:#fff7e9;padding:13px 16px;border-radius:9px;margin-top:18px;font-size:12px;color:#7d5c24}.answer-actions{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-top:20px}.notes{margin-top:16px}.notes summary{display:block;padding:7px 0;font-size:12px;color:var(--muted)}.notes summary::after{content:none}.notes textarea{width:100%;min-height:90px;border:1px solid var(--line);border-radius:9px;padding:12px;resize:vertical;font-size:13px}.module-banner{padding:25px;background:var(--paper);border:1px solid var(--line);border-radius:16px;display:flex;gap:18px;align-items:center;margin-bottom:22px}.module-banner p{font-size:13px;color:var(--muted);margin-top:7px}.module-banner .module-icon{width:60px;height:60px;font-size:25px}.module-banner .button-row{margin-left:auto}.empty-state{text-align:center;padding:48px 20px;background:var(--paper);border:1px dashed #bdc9db;border-radius:16px}.empty-state p{color:var(--muted);margin:10px 0 18px}.quiz-config{max-width:700px}.config-fields{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:22px 0}.quiz-stage{max-width:860px;margin:0 auto}.quiz-top{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);margin-bottom:13px}.quiz-question{margin:28px 0 22px;font-size:24px;line-height:1.45}.choices{display:flex;flex-direction:column;gap:11px;margin-bottom:25px}.choice{width:100%;padding:15px 17px;display:flex;align-items:center;gap:14px;border:1px solid #cdd6e3;border-radius:10px;background:var(--paper);text-align:left;color:var(--ink);font-size:14px}.choice-letter{width:27px;height:27px;display:grid;place-items:center;border:1px solid #d6deea;border-radius:7px;font-family:var(--code);font-size:12px;flex-shrink:0}.choice.selected{border-color:var(--teal);background:#edf9f5}.choice.correct{border-color:var(--teal);background:var(--mint-light)}.choice.wrong{border-color:#c25762;background:#fff0f1}.choice:disabled{opacity:1;cursor:default}.correction{padding:19px;border-radius:11px;background:var(--mint-light);color:#20594d;font-size:14px;margin-bottom:22px}.correction.incorrect{background:#fff0f1;color:#7c3541}.correction h3{font-size:16px;margin-bottom:8px}.quiz-bottom{display:flex;justify-content:space-between;align-items:center;gap:10px}.result-score{font-family:var(--display);font-size:58px;line-height:1.1;margin:24px 0 8px;color:var(--teal)}.result-item{border-bottom:1px solid var(--line);padding:19px 0}.result-item:last-child{border:0}.result-item h3{font-size:15px;line-height:1.6;margin:6px 0}.result-item p{font-size:13px;color:var(--muted);margin:6px 0}.badge-good{color:var(--teal);background:var(--mint-light)}.badge-bad{color:#a44352;background:#fff0f1}.tag{display:inline-block;padding:3px 8px;border-radius:5px;font-size:10px}.plan-top{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:25px}.plan-top .field{max-width:200px;min-width:150px}.plan-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.day-card{background:var(--paper);border:1px solid var(--line);border-radius:15px;padding:23px;position:relative}.day-card.completed{background:#f5fcf9;border-color:#bcded1}.day-number{font-family:var(--code);font-size:11px;color:var(--teal);letter-spacing:1px}.day-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.day-card h3{font-size:19px;margin-bottom:10px}.day-card p{font-size:12px;color:var(--muted)}.day-card ul{font-size:13px;padding-left:18px;margin:14px 0}.day-card li{margin:7px 0}.day-deliverable{font-size:12px;background:var(--bg);padding:12px;border-radius:8px;margin-bottom:18px}.day-deliverable strong{display:block;font-size:10px;letter-spacing:.6px;margin-bottom:5px;color:var(--muted)}.day-card .button-row{justify-content:space-between}.sim-info{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:23px 0}.sim-info div{background:var(--bg);padding:14px;border-radius:9px;font-size:12px;color:var(--muted)}.sim-info strong{display:block;font-family:var(--display);font-size:20px;color:var(--ink);margin-bottom:3px}.sim-prompt{padding:20px;background:var(--blue-light);border-radius:12px;margin:20px 0}.sim-prompt h3{font-size:21px;line-height:1.5}.sim-prompt p{font-size:13px;margin-top:12px;color:var(--muted)}.timer{font-family:var(--code);font-size:21px;color:var(--ink);display:flex;align-items:center;gap:10px}.timer .button{font-family:var(--body)}.timer.expired{color:#b34450}.ratings{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin:20px 0}.rating{font-size:12px;color:var(--muted)}.rating strong{display:block;color:var(--ink);margin-bottom:4px}.rating select{width:100%;margin-top:7px;padding:9px;background:var(--paper);border:1px solid var(--line);border-radius:8px;color:var(--ink);font-size:12px}.history-list{padding:0;list-style:none;margin-top:18px}.history-list li{display:flex;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px solid var(--line);font-size:12px}.history-list li:last-child{border:0}.coverage-row{display:grid;grid-template-columns:150px 1fr 55px;gap:15px;align-items:center;font-size:12px;margin:19px 0}.data-actions{display:flex;flex-direction:column;gap:14px;margin-top:22px}.data-actions .button{align-self:flex-start}.import-label{cursor:pointer}.import-label input{display:none}.source-list{margin:20px 0;padding-left:20px}.source-list li{margin:12px 0;font-size:14px}.notice{background:var(--blue-light);border-radius:10px;padding:15px;font-size:13px;margin:18px 0}.storage-warning{padding:12px 44px;background:#fff2d5;font-size:13px;color:#765215}#toast{position:fixed;bottom:25px;left:calc(50% + 124px);transform:translateX(-50%) translateY(100px);padding:12px 21px;background:var(--ink);border:1px solid #52637c;color:#fff;box-shadow:0 8px 30px #172b4d25;border-radius:11px;font-size:13px;z-index:50;opacity:0;transition:transform .2s,opacity .2s;max-width:calc(100vw - 30px);pointer-events:none}#toast.visible{transform:translateX(-50%) translateY(0);opacity:1}dialog{border:1px solid var(--line);border-radius:18px;padding:27px;max-width:450px;color:var(--ink);box-shadow:0 24px 90px #172b4d30}dialog::backdrop{background:#172b4d88}dialog p{margin:16px 0 22px;font-size:14px}.chart-legend{display:flex;gap:15px;font-size:11px;color:var(--muted);margin-top:18px}.dot{display:inline-block;width:8px;height:8px;background:var(--teal);border-radius:50%;margin-right:6px}.welcome-note{font-size:12px;color:var(--muted);margin-bottom:20px}.review-section{margin-top:25px}.inline-date{font-size:10px;color:var(--muted)}.session-warning{font-size:12px;color:var(--muted);margin:16px 0}.progress-detail{margin-top:25px}.focus-box{background:var(--violet-light);border-radius:10px;padding:17px;font-size:13px;line-height:1.8}.focus-box strong{display:block;color:var(--violet);margin-bottom:5px}.detail-toolbar{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;margin:15px 0}.no-wrap{white-space:nowrap}.sim-answer{margin-top:23px}.sim-answer summary{cursor:pointer;color:var(--teal);font-size:13px;font-weight:600}.sim-answer .answer{padding:0;border:0}.result-note{font-size:12px;color:var(--muted);margin-top:13px}.hero .eyebrow{color:var(--teal)}
@media(min-width:1500px){main{padding-top:42px}.hero{min-height:290px}.hero-copy{padding:36px 40px}.hero h2{font-size:41px}.dashboard-columns{grid-template-columns:minmax(0,1fr) 310px}}
@media(max-width:1200px){.sidebar{width:220px;padding:28px 17px}.shell{margin-left:220px}main{padding:30px 28px}.topbar{padding:0 28px}footer{padding:20px 28px}.dashboard-columns{grid-template-columns:minmax(0,1fr) 255px;gap:18px}.hero-copy{padding:28px}.hero h2{font-size:31px}.stack-visual{padding:24px 20px}.stack-code{font-size:9px}.stat-card{padding:17px 14px;gap:10px}.stat-icon{width:35px;height:35px}.stat-number{font-size:23px}.module-card{padding:18px}#toast{left:calc(50% + 110px)}}
@media(max-width:1000px){.sidebar{width:190px;padding:26px 12px}.brand{font-size:23px;gap:9px}.brand-symbol{width:38px;height:38px;font-size:25px}.brand small{font-size:7px}.shell{margin-left:190px}.nav-link{font-size:12px;padding:11px 10px;gap:9px}.dashboard-columns{grid-template-columns:1fr}.rail{display:grid;grid-template-columns:1fr 1fr}.rail .tip{grid-column:1/-1}.hero{grid-template-columns:1.3fr 1fr}.hero h2{font-size:29px}.stack-layer{padding:12px 10px}.stack-code{display:none}.stats-grid{gap:10px}.stat-card{display:block;padding:15px}.stat-icon{float:right;width:30px;height:30px}.stat-icon svg{width:17px}.stat-label{font-size:10px}.two-columns{grid-template-columns:1fr}.module-banner{flex-wrap:wrap}.module-banner .button-row{margin-left:0}#toast{left:calc(50% + 95px)}}
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