:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#09111f;--ink:#f0f6ff;--muted:#97a7bc;--border:#263b55;--blue:#3b91f0;--cyan:#2dd4bf}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;font-size:14px}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}.wrap{width:min(1180px,100% - 40px);margin:auto}.top{border-bottom:1px solid var(--border);z-index:30;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);background:#0b1423;position:sticky;top:0}.nav,.navlinks,.brand,.hero-actions,.trust,.panel-head,.panel-foot,.course-top,.course-bottom,.detail-upper,.detail-meta,.workbench-title,.command-controls,.account{justify-content:space-between;align-items:center;display:flex}.nav{height:76px}.brand{justify-content:flex-start;gap:11px}.brand-logo{background:#1260a5;border:1px solid #308ad0;border-radius:12px;place-items:center;width:42px;height:42px;display:grid}.brand strong{letter-spacing:.04em;font-size:15px;display:block}.brand strong span{color:#63c3ff}.brand small{letter-spacing:.16em;color:#9eb3c9;margin-top:3px;font-size:9px;display:block}.navlinks{color:#b9c9dc;gap:28px;font-size:13px}.navlinks a:hover,.linkbutton:hover{color:#58baff}.free-pill{color:#7ee6ac;background:#0c352c;border:1px solid #17644d;border-radius:999px;padding:5px 12px;font-size:11px;font-weight:700}.navsignin{align-items:center;gap:7px;display:flex;color:#fff!important}.quiet,.linkbutton{color:#bdcee2;background:0 0;border:none}.quiet{align-items:center;gap:8px;display:flex}.hero{grid-template-columns:1.12fr 1fr;align-items:center;gap:65px;min-height:485px;padding-block:70px;display:grid}.eyebrow{color:#57baff;letter-spacing:.17em;align-items:center;gap:9px;font-size:11px;font-weight:800;display:flex}.pulse,.status-dot{background:#2edaa1;border-radius:50%;width:8px;height:8px;display:inline-block;box-shadow:0 0 12px #3fdcab}.hero h1{letter-spacing:-.045em;margin:21px 0 18px;font-size:clamp(34px,4.2vw,56px);line-height:1.11}.hero h1 em{color:#65bdff;font-style:normal}.hero-copy>p{color:#aabcce;max-width:560px;font-size:16px;line-height:1.75}.hero-actions{justify-content:flex-start;gap:11px;margin:29px 0}.btn{border:1px solid #0000;border-radius:9px;justify-content:center;align-items:center;gap:9px;padding:12px 18px;font-weight:700;transition:all .2s;display:inline-flex}.btn.primary{color:#fff;background:#2f91ec}.btn.primary:hover{background:#147ad8}.btn.secondary{color:#e0edff;background:#14263c;border-color:#335273}.btn.danger{color:#ffd5dd;background:#4d2430;border-color:#804156}.btn:disabled{opacity:.48;cursor:not-allowed}.btn.full{width:100%}.trust{color:#a5bad1;flex-wrap:wrap;justify-content:flex-start;gap:18px;font-size:11px}.trust span{align-items:center;gap:6px;display:flex}.trust svg{color:#44ca94}.hero-panel,.console{background:#071423;border:1px solid #254765;border-radius:13px;overflow:hidden;box-shadow:0 30px 80px #0006}.panel-head{color:#a3bbcd;letter-spacing:.09em;background:#15273b;border-bottom:1px solid #29435b;padding:14px 18px;font-size:10px}.panel-head>span:first-child{align-items:center;gap:5px;display:flex}.dot{border-radius:50%;width:9px;height:9px;display:inline-block}.red{background:#fb6877}.yellow{background:#ffc857}.green{background:#49dbaa;margin-right:12px}.hero-panel pre,.console pre{color:#9be2c3;white-space:pre-wrap;min-height:245px;margin:0;padding:25px;font:12px/1.9 SFMono-Regular,Consolas,monospace}.panel-foot{color:#819bb5;letter-spacing:.09em;border-top:1px solid #20384f;padding:13px 17px;font-size:10px}.panel-foot span{align-items:center;gap:8px;display:flex}.metrics{background:#101d2e;border-block:1px solid #233953}.metric-grid{grid-template-columns:repeat(4,1fr);display:grid}.metric-grid>div{text-align:center;border-right:1px solid #273c53;padding:22px}.metric-grid>div:last-child{border:0}.metric-grid strong{font-size:28px;display:block}.metric-grid span{color:#a3b3c6;margin-top:4px;font-size:12px;display:block}.section{padding-block:80px}.section-intro{max-width:760px;margin-bottom:30px}.section-intro h2{letter-spacing:-.03em;margin:10px 0;font-size:32px}.section-intro p{color:#97adc2;line-height:1.65}.course-grid{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}.course-card,.lab-card,.lab-detail,.auth-box,.workbench,.progress{background:#111f30;border:1px solid #294059;border-radius:13px}.course-card{flex-direction:column;min-height:232px;padding:22px;display:flex}.course-top{color:#8098b5}.course-badge{color:#92caff;letter-spacing:.06em;background:#123856;border-radius:5px;padding:6px 10px;font-size:10px;font-weight:800}.course-badge.color1{color:#d7baff;background:#392b50}.course-badge.color2{color:#ffccb1;background:#4d302b}.course-badge.color3{color:#a5f1d3;background:#164738}.course-card h3{margin:23px 0 8px;font-size:17px}.course-card p{color:#9cacc1;flex:1;line-height:1.6}.course-bottom{color:#9baec2;border-top:1px solid #2a4057;margin-top:15px;padding-top:15px;font-size:12px}.course-bottom span{align-items:center;gap:5px;display:flex}.feature-band{background:#0d1d30;border-block:1px solid #1a3652}.feature-grid{grid-template-columns:repeat(3,1fr);gap:44px;padding-block:37px;display:grid}.feature svg{color:#68b8ff}.feature h3{margin:14px 0 7px;font-size:16px}.feature p{color:#9db3c9;margin:0;line-height:1.6}.auth-box{grid-template-columns:1fr 1.15fr;gap:35px;max-width:760px;padding:30px;display:grid}.auth-box>div>svg{color:#64bbff}.auth-box h3{margin-bottom:9px;font-size:22px}.auth-box p{color:#9fb4c9}.auth-box form{gap:12px;display:grid}.auth-box label{color:#aabfd4;gap:6px;font-size:12px;display:grid}.auth-box input,.coach input,.coach textarea,.command-controls select{color:#fff;background:#0a1625;border:1px solid #39526b;border-radius:7px;outline:none;width:100%;padding:11px 12px}.auth-box .btn{width:100%}.linkbutton{padding:6px}.account{color:#a3b8cd;justify-content:flex-start;gap:10px;margin-bottom:6px}.account svg{color:#41daa7}.account .free-pill{margin-left:8px}.alert{background:#4b2830;border:1px solid #9d5965;border-radius:9px;margin:15px 0;padding:12px}.lab-section{padding-top:30px}.lab-layout{grid-template-columns:1fr 1.1fr;gap:20px;display:grid}.lab-list{align-content:start;gap:9px;display:grid}.lab-card{color:#dbe9f8;text-align:left;align-items:center;gap:15px;width:100%;padding:15px;display:flex}.lab-card:hover,.lab-card.selected{background:#14304b;border-color:#419bea}.lab-icon{color:#66b6f7;background:#243d55;border-radius:9px;place-items:center;padding:12px;display:grid}.lab-description{flex:1;gap:5px;display:grid}.lab-description small{color:#92a7bb}.lab-card>svg{color:#759fbd}.lab-detail{align-self:start;min-height:385px;padding:28px}.detail-upper{color:#9cb3c9;font-size:12px}.detail-upper span:last-child{align-items:center;gap:7px;display:flex}.lab-detail h3{margin:26px 0 10px;font-size:23px}.lab-detail p{color:#a5bad0;line-height:1.7}.lab-detail h4{margin:24px 0 7px}.detail-meta{color:#9eb6d0;justify-content:flex-start;gap:24px;margin:24px 0}.detail-meta span{align-items:center;gap:8px;display:flex}.active-label{color:#50dfb3;align-items:center;gap:8px;margin-bottom:12px;display:flex}.workbench{margin-top:25px;padding:22px}.workbench-title{margin-bottom:20px}.workbench-title h3{align-items:center;gap:10px;display:flex}.workbench-grid{grid-template-columns:1.2fr 1fr;gap:20px;display:grid}.console pre{min-height:230px}.command-controls{gap:10px;padding:13px}.coach{border:1px solid #2d475d;border-radius:10px;padding:20px}.coach h4{align-items:center;gap:9px;font-size:17px;display:flex}.coach h4 svg{color:#5abdfa}.coach p{color:#9fb4c8;line-height:1.6}.coach textarea{resize:vertical;min-height:88px;margin-bottom:9px}.coach .btn{margin-top:8px}.result{background:#17324b;border-radius:8px;padding:12px;color:#c2e5ff!important}.assessment{border-top:1px solid #35506a;margin-top:20px;padding-top:10px}.progress{margin-top:25px;padding:20px}.progress h3{align-items:center;gap:9px;display:flex}.progress p{color:#a4bad0}footer{background:#0b1422;border-top:1px solid #273f54;padding-block:28px}.footer{justify-content:space-between;align-items:center;gap:25px;display:flex}.footer p{color:#8da1b7;max-width:470px;font-size:11px}.footer>span{color:#7d93a9;font-size:11px}@media (max-width:920px){.navlinks a:not(.navsignin){display:none}.hero,.lab-layout,.workbench-grid{grid-template-columns:1fr}.hero{gap:25px;padding-block:40px}.course-grid{grid-template-columns:repeat(2,1fr)}.feature-grid{gap:20px}.footer{flex-wrap:wrap}}@media (max-width:620px){.wrap{width:min(100% - 24px,1180px)}.hero h1{font-size:36px}.metric-grid{grid-template-columns:repeat(2,1fr)}.metric-grid>div:nth-child(2){border:0}.course-grid,.feature-grid,.auth-box{grid-template-columns:1fr}.section{padding-block:50px}.navlinks{gap:10px}.free-pill{display:none}.footer{display:block}.hero-panel pre{padding:15px;font-size:10px}}.quiz-panel{background:#0b1c2c;border:1px solid #263d52;border-radius:18px;margin-top:18px;padding:24px}.quiz-tabs{flex-wrap:wrap;gap:8px;margin-bottom:22px;display:flex}.quiz-tab{color:#d8e5ee;cursor:pointer;background:#122d42;border:1px solid #2b4960;border-radius:9px;padding:10px 12px}.quiz-tab.active{color:#fff;background:#194561;border-color:#2fd0e9}.quiz-question{color:#e3edf5;border:0;border-top:1px solid #294154;margin:0;padding:16px 0}.quiz-question legend{float:left;width:100%;margin-bottom:10px}.quiz-option{color:#bfd3e0;cursor:pointer;border-radius:7px;align-items:center;gap:9px;margin:5px 0;padding:8px;display:flex}.quiz-option.chosen{color:#fff;background:#184361}.quiz-explain{color:#cbf5e7;background:#17392f;border-left:3px solid #3bd9ae;margin:10px 0;padding:12px}.quiz-score{color:#7ce8cd;margin:15px 0;font-size:20px;font-weight:700}.topology-panel{background:#091929;border:1px solid #345775;border-radius:12px;margin-top:20px;padding:14px}.topology-heading{color:#e4f2ff;justify-content:space-between;align-items:center;gap:10px;display:flex}.topology-heading span{letter-spacing:.07em;color:#ffda9d;font-size:10px;font-weight:700}.topology-panel svg{width:100%;height:auto;max-height:220px;margin:10px auto;display:block}.topology-panel p{color:#97adc2;margin:3px 0;font-size:11px;line-height:1.5}.topology-placeholder{color:#94a3b8;padding:20px}.assignment-grid{grid-template-columns:1fr 1fr;align-items:start;gap:20px;display:grid}.assignment-item{border:1px solid #7d9abe3d;border-radius:12px;margin:14px 0;padding:16px}.assignment-item small{color:#94a3b8;margin-top:5px;display:block}.assignment-item textarea,.assignment-grid textarea{width:100%;min-height:95px;margin:10px 0;display:block}.assignment-grid input,.assignment-grid select{width:100%;margin:8px 0 14px;display:block}.assignment-actions{flex-wrap:wrap;gap:10px;margin-top:8px;display:flex}.verification-panel{background:#102a3b;border:1px solid #2d6e84;border-radius:12px;margin:12px 0;padding:16px}@media (max-width:860px){.assignment-grid{grid-template-columns:1fr}}.download-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.download-card{background:#111f30;border:1px solid #294059;border-radius:13px;padding:23px}.download-card h3{margin:16px 0 8px;font-size:19px}.download-card p{color:#a5bad0;min-height:68px;line-height:1.6}.download-row{color:#a9bcd0;border-top:1px solid #2e455e;justify-content:space-between;align-items:center;gap:12px;margin-top:16px;padding-top:14px;display:flex}.download-row a{white-space:nowrap}.download-disclaimer{color:#92a9c0;margin-top:22px;font-size:12px;line-height:1.7}@media (max-width:720px){.download-grid{grid-template-columns:1fr}.download-row{flex-wrap:wrap}}.download-filters{flex-wrap:wrap;align-items:end;gap:1rem;margin:1.25rem 0;display:flex}.download-filters label{flex-direction:column;flex:1;gap:.4rem;min-width:170px;font-weight:600;display:flex}.download-filters input,.download-filters select{color:#172334;background:#fff;border:1px solid #66778b;border-radius:8px;width:100%;min-height:42px;padding:.65rem}.download-filters span{white-space:nowrap;padding-bottom:.7rem}.account-panel{align-items:start;max-width:none;margin-top:12px}.account-panel form{align-content:start}.account-panel>.linkbutton{grid-column:1/-1;justify-self:start}.account-panel h3{align-items:center;gap:8px;font-size:17px;display:flex}.account-panel .hint{font-size:12px}.danger-zone{border-top:1px solid #4d2430;gap:12px;margin-top:22px;padding-top:18px;display:grid}.code-sample{letter-spacing:.08em;color:#9be2c3;background:#0a1625;border:1px solid #39526b;border-radius:5px;margin:0 4px;padding:2px 7px;font-family:SFMono-Regular,Consolas,monospace;display:inline-block}.auth-box .alert{margin:0}
