:root{color-scheme:dark;--bg:#06121e;--panel:#102332;--panel2:#152d40;--ink:#eff7ff;--muted:#9db1c5;--line:#284154;--blue:#139bff;--teal:#38d9ad;--orange:#ffb654;--red:#ff858c;font-family:Inter,Segoe UI,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 80% 0,#112f4b 0,transparent 50%),var(--bg);color:var(--ink);font:15px/1.6 Inter,Segoe UI,Arial,sans-serif}button,input,select,textarea{font:inherit}button,a,input,select,summary,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #82caff;outline-offset:3px}button{color:inherit}a{color:#78c5ff}svg.ico{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.app{max-width:1260px;min-height:100vh;margin:0 auto 0 250px;background:transparent;padding:0 40px 48px}.app>header{height:94px;padding:0;border:0;background:transparent;display:flex;justify-content:space-between;gap:20px}.brand{gap:12px;display:flex;align-items:center}.brand>span{background:linear-gradient(160deg,#1bb8ff,#0051d8);color:white;width:42px;height:46px;border-radius:12px;box-shadow:0 0 26px #0088ff44;font-size:36px;line-height:1;text-align:center}.brand b{font-size:24px;letter-spacing:2px}.brand small{font:10px/1.5 inherit;letter-spacing:1.4px;color:var(--muted)}.header-right{display:flex;align-items:center;gap:14px}.pill{display:inline-flex;align-items:center;gap:7px;padding:5px 11px;border-radius:30px;border:1px solid var(--line);color:#b7cce0;font-size:11px;letter-spacing:.3px}.pill:before{content:'';width:6px;height:6px;border-radius:50%;background:#42d5ae}.icon-button{display:grid;place-items:center;border:1px solid var(--line);width:38px;height:38px;border-radius:12px;background:#112536;color:var(--muted)}.sidebar{position:fixed;inset:0 auto 0 0;width:250px;padding:33px 22px 24px;background:#06131eea;border-right:1px solid #203446;display:flex;flex-direction:column;gap:8px;z-index:20}.sidebar .side-brand{font-size:25px;font-weight:850;letter-spacing:2px;padding:0 16px 26px;color:white}.side-caption{color:#6c889f;font-size:10px;font-weight:700;letter-spacing:2px;margin:16px 15px 8px}.side-link{display:flex;align-items:center;gap:13px;text-align:left;background:transparent;color:#9fb6ca;border:1px solid transparent;padding:12px 14px;border-radius:11px;font-size:13px}.side-link:hover,.side-link.selected{color:#f5fbff;background:#0b344f;border-color:#155273}.side-link.selected .ico{color:#2baaff}.side-foot{margin-top:auto;padding:16px;font-size:11px;line-height:1.6;color:#6c889f;border-top:1px solid var(--line)}.view{padding:8px 0 30px;min-height:0;display:none}.view.active{display:block}.eyebrow{font:600 10px/1.6 inherit;letter-spacing:2px;color:#6ab9ed;margin:0 0 6px}.home h1{font-size:clamp(30px,4vw,46px);line-height:1.13;letter-spacing:-1.2px;margin:12px 0}.hero{position:relative;min-height:300px;overflow:hidden;border:1px solid #244b69;border-radius:22px;background:linear-gradient(105deg,#061725 15%,#092d4dc9 60%,#174366),url('assets/hero.png') center/cover;display:flex;align-items:center;margin-bottom:27px}.hero:before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#031321f0,#031321aa 35%,transparent 85%)}.hero-copy{position:relative;padding:32px;max-width:540px}.hero-copy p:not(.eyebrow){color:#bfd1df;font-size:14px;max-width:330px;margin:16px 0 23px}.hero .primary{display:inline-flex;align-items:center;gap:16px;width:auto}.primary{border:1px solid #31afff;background:linear-gradient(120deg,#098cf3,#0868d6);border-radius:10px;color:white;font-weight:650;padding:12px 20px;box-shadow:0 5px 20px #008fff18}.primary:hover{filter:brightness(1.12)}.secondary{border:1px solid #31556e;background:#102c41;color:#d5eaff;border-radius:10px;padding:10px 16px}.subtle{border:0;background:transparent;color:#7fc9ff;padding:7px 0}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:12px;margin:24px 0 15px}.section-heading h2{font-size:18px;margin:0;letter-spacing:-.3px}.section-heading span{color:var(--muted);font-size:12px}.module-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.module{position:relative;min-height:172px;text-align:left;padding:22px;border:1px solid #215477;background:linear-gradient(140deg,#103351,#071c2c);border-radius:16px;color:#e9f6ff;transition:transform .18s,border-color .18s}.module:hover{transform:translateY(-3px);border-color:#52aafa}.module .module-icon{display:grid;place-items:center;width:44px;height:44px;margin-bottom:18px;border:1px solid #268ce580;background:linear-gradient(135deg,#139fff40,#0068ed22);border-radius:12px;color:#56c4ff}.module .ico{width:27px;height:27px}.module b{display:block;font-size:17px;margin-bottom:6px}.module small{display:block;font-size:12px;color:#adcbdf;line-height:1.55;padding-right:20px}.module .arrow{position:absolute;right:20px;bottom:20px;color:#6ba2c9}.module.green{background:linear-gradient(140deg,#10382f,#071e22);border-color:#235f53}.module.green .module-icon{background:#1caa5633;color:#69ec99;border-color:#338355}.module.orange{background:linear-gradient(140deg,#342919,#1c1d21);border-color:#655038}.module.orange .module-icon{background:#cc7b1733;color:#ffc36a;border-color:#ac792b}.module.purple{background:linear-gradient(140deg,#2c2545,#141c31);border-color:#504175}.module.purple .module-icon{background:#9250e833;color:#be9bff;border-color:#885db9}.module.gold{background:linear-gradient(140deg,#35321c,#191f25);border-color:#6a5a31}.module.gold .module-icon{background:#dba91930;color:#ffe077;border-color:#a58a36}.ask-banner{margin:20px 0;display:flex;width:100%;align-items:center;gap:16px;text-align:left;padding:20px;border:1px solid #18588b;border-radius:14px;background:linear-gradient(100deg,#092942,#103653);color:#b9e1ff}.ask-banner b{display:block;color:white;font-size:16px}.ask-banner small{font-size:12px;color:#8cb4d4}.ask-banner>.ico{width:32px;height:32px}.ask-banner .push{margin-left:auto}.footnote{font-size:11px;color:#7895ac;line-height:1.7}.page-title{display:flex;align-items:center;gap:14px;margin:7px 0 22px}.page-title h1{font-size:27px;margin:0;line-height:1.3;letter-spacing:-.6px}.page-title p{margin:4px 0 0;font-size:12px;color:var(--muted)}.page-title .favorite{margin-left:auto}.favorite.on{color:#ffce6e;border-color:#9b7738}.panel{border:1px solid var(--line);border-radius:16px;background:linear-gradient(140deg,#132939,#102230);padding:24px;margin-bottom:18px}.panel h2,.panel h3{font-size:17px;margin:0 0 13px}.panel p{color:#b0c3d3;font-size:13px}.panel .hint,.hint{font-size:12px;color:#8fa9bd;line-height:1.7;margin:9px 0}.tool-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.tool-card{padding:22px;text-align:left;border:1px solid var(--line);border-radius:14px;background:var(--panel);color:var(--ink)}.tool-card b{display:block;margin:10px 0 5px}.tool-card small{font-size:12px;color:var(--muted)}.form,.form-grid{display:grid;gap:16px}.form.two,.form-grid{grid-template-columns:1fr 1fr}.form label,.form-grid label,label{font-size:12px;font-weight:600;color:#b6ccdd}.form label span{color:#7e9eb8;float:none;margin-left:4px;font-size:10px}.form>*,.form-grid>*{min-width:0}input:not([type=checkbox]),select,textarea,.form input,.form select,.form textarea{display:block;width:100%;min-width:0;border:1px solid #355167;background:#091b2a;color:#edf7ff;border-radius:9px;padding:11px 12px;margin:6px 0 0;min-height:44px;box-shadow:none}input:focus,select:focus,textarea:focus{outline:2px solid #138ce8;outline-offset:1px}input[type=checkbox]{width:17px;height:17px;accent-color:#139bff;vertical-align:middle}.check-label{display:flex;gap:10px;align-items:center;margin:15px 0}.form [hidden],[hidden]{display:none!important}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.results-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}.metric{padding:18px;background:#091e2d;border:1px solid #28516a;border-radius:12px}.metric span{display:block;font-size:11px;color:#8daac1}.metric strong{display:block;font-size:25px;line-height:1.35;color:#f2faff;font-variant-numeric:tabular-nums}.metric small{font-size:10px;color:#86a7bc}.status{padding:14px 18px;border:1px solid #886a35;background:#352d1c;color:#ffdc92;border-radius:12px;font-size:13px;margin:14px 0}.status.good{background:#0e352d;border-color:#226d53;color:#8aefbd}.status.bad{background:#3a2029;border-color:#814750;color:#ffadb4}.status.info{background:#0b2e49;border-color:#215f87;color:#a6d9ff}.empty-state{text-align:center;padding:48px 24px;border:1px dashed #335269;border-radius:16px;color:#8facbf;background:#0b1c2a}.empty-state>.ico{width:44px;height:44px;margin-bottom:12px;color:#5a9fcf}.empty-state h2{color:#e2f2ff;font-size:18px}.empty-state p{max-width:400px;margin:10px auto 22px;font-size:13px}.step-track{display:grid;grid-template-columns:repeat(6,1fr);gap:7px;margin-bottom:21px}.step{border:0;background:transparent;color:#7496b0;padding:8px 3px;font-size:10px;text-align:center}.step i{display:grid;place-items:center;font-style:normal;width:31px;height:31px;border-radius:50%;border:1px solid #36536a;margin:0 auto 7px;background:#0c2031;color:#afc5d8;font-size:13px}.step.active{color:#d8f0ff}.step.active i{border-color:#30b8ff;background:#087dda;color:white;box-shadow:0 0 20px #139bff44}.flow-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:20px}.flow-aside{padding:22px;border:1px solid var(--line);border-radius:16px;background:#0a1c2a;align-self:start}.flow-aside h3{font-size:14px;margin:0 0 12px}.flow-aside p{font-size:12px;color:#8eaec5}.route-line{border-left:2px solid #24597c;margin:15px 7px;padding-left:20px}.route-line div{position:relative;margin-bottom:20px;font-size:12px}.route-line div:before{position:absolute;content:'';width:10px;height:10px;border-radius:50%;background:#168de9;left:-26px;top:5px;border:2px solid #0a1c2a}.route-line small{display:block;color:#7795aa}.flow-step{display:none}.flow-step.active{display:block}.tabs{display:flex;gap:4px;background:#061927;border:1px solid #284a60;border-radius:11px;padding:4px;overflow:auto;margin:18px 0}.tabs button{flex:1;white-space:nowrap;background:transparent;color:#9cbbd1;border:0;border-radius:7px;font-size:12px;padding:10px 14px}.tabs button.selected{background:#0769b8;color:white}.result-line{display:flex;justify-content:space-between;gap:16px;padding:9px 0;border-bottom:1px solid #284050;font-size:13px}.result-line span{color:#a6bdd0}.result-line b{font-variant-numeric:tabular-nums;text-align:right}.result-line:last-child{border:0}.formula{font:20px/1.7 Georgia,serif;text-align:center;background:#e3edf5;color:#142635;padding:24px;border-radius:11px;margin:14px 0}.explain{white-space:pre-wrap;background:#081d2d;padding:20px;border-radius:11px;border:1px solid #25506d;color:#bfd8eb;font:13px/1.9 ui-monospace,Consolas,monospace}.bank-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.bank-card{border:1px solid #2a4558;background:#102637;border-radius:12px;padding:16px;text-align:left;color:#d8edff}.bank-card b{display:block;font-size:13px}.bank-card small{color:#8daec4;font-size:11px}.case-text{white-space:pre-wrap;font-size:13px;line-height:1.9;color:#bad0e0;overflow-wrap:anywhere}.quiz-options{display:grid;gap:9px;margin:15px 0}.quiz-options button{background:#0b2234;border:1px solid #2a516c;border-radius:9px;padding:13px;text-align:left}.quiz-options button.correct{background:#0b4634;border-color:#31846a}.quiz-options button.wrong{background:#512431;border-color:#a65b6a}.project-row{display:flex;align-items:center;gap:14px;padding:18px;border:1px solid var(--line);border-radius:13px;background:var(--panel);margin:12px 0}.project-row .project-title{flex:1;min-width:0}.project-row b{display:block;overflow-wrap:anywhere}.project-row small{display:block;color:var(--muted);font-size:11px}.project-row button{font-size:12px}.ask-messages{display:grid;gap:12px;max-height:460px;overflow:auto;margin:18px 0}.message{padding:16px 18px;border-radius:13px;background:#0b2234;border:1px solid #254459;font-size:13px;white-space:pre-wrap}.message.you{background:#074274;border-color:#176aa3;margin-left:35px;color:white}.message a{display:inline-block;margin:8px 8px 0 0}.toast{position:fixed;bottom:25px;right:25px;padding:13px 20px;max-width:calc(100vw - 30px);background:#174a65;color:#e4f7ff;border:1px solid #3e8aaf;border-radius:12px;box-shadow:0 15px 40px #0008;z-index:100;font-size:13px}.app>nav{display:none}.bar{display:flex;gap:13px;align-items:center;margin:12px 0 22px}.bar button{background:#132f45;color:#8acbff;border:1px solid #2a4d65;border-radius:10px;width:34px;height:36px;font-size:29px;padding:0}.bar h2{color:white;font-size:24px}.bar small{color:#74baff}.helper,.lead{color:var(--muted)}.result{background:#0c3143;border:1px solid #27617a;border-radius:14px;color:white;padding:23px}.result strong{color:#f2fbff}.result small,.result p{color:#add2e7}.work{background:#102737;border:1px solid #2b4659;color:#c4daea;border-radius:12px;padding:18px;margin:15px 0;overflow-wrap:anywhere}.check{border-radius:11px;padding:15px;background:#2b2a1c;color:#ead8a2;border:1px solid #635932}.check.ok{background:#0d382d;color:#91e8b6;border-color:#245e46}.check.no{background:#41212a;color:#ffb4b9;border-color:#73404b}.check.conditional{background:#352d1c;color:#ffdc92}.seg{background:#0a1e2d;border:1px solid #294557}.seg button{color:#9cbbd1}.seg button.sel{color:white;background:#0877c8}.notice{background:#292c20;border:1px solid #5a6037;color:#e1dfac}.notice p{color:#b4b997}.factor-grid>div{background:#0a2435;border:1px solid #2b526a;color:#b2cee1}.factor-grid b{color:#6dc5ff}.factor-grid small{color:#8baac0}.reference{background:#0b2132;color:#b6d3e7;border:1px solid #2f526b;padding:15px;border-radius:12px;margin-top:20px}.reference summary{color:#d0eaff}.reference img{max-width:100%;background:white;border-radius:7px}.curve{background:#0e2536;border:1px solid #335168}.curve-label{color:#b6d2e4}.curve-zone{opacity:.5}.simple-value{background:#0c2130!important;border-color:#335168!important}.simple-value input,.simple-value select{color:#e0f2ff!important}.simple-value select{background:#15364e!important}.simple-grid label{color:#bed8e9}#simpleResults article,#formulary details{background:#102a3c;border-color:#31526a}#simpleResults strong{color:#85d0ff}#simpleResults span,#formulary details p{color:#a2bed2}#simpleStatus{background:#102c3d;color:#cee4f3}.ac-calculate{background:#087bd3!important;color:white!important;border:1px solid #319fe9!important}.study-open,.guide-open{background:#103a55!important;border-color:#286b92!important;color:#a8ddff!important}.study-backdrop,.guide-backdrop{color:#173241}.study-dialog,.guide-dialog{color:#173241}body.large-text{font-size:17px}body.large-text .panel p,body.large-text .hint{font-size:15px}
@media(min-width:1600px){.app{margin-left:auto;padding-left:100px}}@media(max-width:1100px){.sidebar{width:210px;padding:28px 14px}.app{margin-left:210px;padding:0 25px 40px}.module-grid{grid-template-columns:repeat(2,1fr)}.flow-layout{grid-template-columns:minmax(0,1fr)}.flow-aside{display:none}.hero-copy{padding:26px}}@media(max-width:720px){.sidebar{display:none}.app{padding:0 18px 95px;margin:0 auto;max-width:560px}.app>header{height:76px}.brand b{font-size:21px}.brand>span{width:33px;height:39px;font-size:30px}.brand small{font-size:8px}.header-right{gap:8px}.pill{font-size:9px;padding:4px 8px}.header-right .icon-button{width:33px;height:33px}.hero{min-height:280px;border-radius:17px;margin:4px 0 21px;background-position:63% center}.hero-copy{padding:23px;max-width:340px}.hero-copy p:not(.eyebrow){font-size:12px;max-width:240px}.home h1{font-size:33px;max-width:240px}.hero:before{background:linear-gradient(90deg,#041423e8,#03132185 65%,#03132122)}.hero .primary{font-size:12px;padding:11px 16px}.module-grid{gap:11px}.module{padding:17px;min-height:170px;border-radius:14px}.module .module-icon{width:40px;height:40px;margin-bottom:15px}.module b{font-size:15px}.module small{font-size:11px;padding-right:0}.module .arrow{right:12px;bottom:12px;font-size:12px}.section-heading h2{font-size:17px}.section-heading span{font-size:10px}.ask-banner{padding:16px;gap:12px}.ask-banner small{font-size:11px}.app>nav{position:fixed;bottom:0;left:0;right:0;z-index:30;display:flex;justify-content:space-around;background:#041420f5;backdrop-filter:blur(18px);border-top:1px solid #263f53;padding:12px 10px max(12px,env(safe-area-inset-bottom));height:auto}.app>nav button{border:0;background:transparent;color:#7d9bb2;font-size:10px;display:grid;justify-items:center;gap:4px;min-width:60px}.app>nav button.active{color:#29b1ff}.app>nav .ico{width:22px;height:22px}.app>nav span{display:block;font-size:10px}.panel{padding:19px;border-radius:13px}.page-title{gap:10px}.page-title h1{font-size:23px}.page-title p{font-size:11px}.page-title .icon-button{width:32px;height:34px}.form-grid,.form.two{gap:13px}.tool-grid,.bank-list{grid-template-columns:1fr}.tool-card{padding:18px}.results-grid{grid-template-columns:repeat(2,1fr)}.results-grid .metric:last-child{grid-column:1/-1}.metric strong{font-size:23px}.step-track{gap:0}.step{font-size:9px}.step i{width:27px;height:27px}.step-track .step:nth-child(3){font-size:8px}.tabs button{padding:10px 12px;font-size:11px}.toast{bottom:85px;right:15px}.project-row{flex-wrap:wrap}.project-row .project-title{flex-basis:60%}.status{font-size:12px}.formula{font-size:18px;padding:18px}.bar h2{font-size:21px}.bar small{font-size:10px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}@media print{body{background:white;color:black}.sidebar,header,nav,.actions,.page-title button,.tabs,.no-print{display:none!important}.app{margin:0;padding:0;max-width:none}.view{display:none!important}#flowResult.active{display:block!important}.panel,.metric,.status,.explain{break-inside:avoid;background:white;color:black;border-color:#aaa}.panel p,.result-line span,.metric span,.metric strong,.metric small,.footnote,.explain{color:black}.results-grid{grid-template-columns:repeat(3,1fr)}#resultBody .print-section{display:block!important}.page-title h1{color:black}.formula{background:#eee;color:black}}

/* Overrides for legacy names shared by the new shell. */
.status.info{display:block;width:auto;height:auto;min-height:0;border-radius:12px;font:13px/1.65 Inter,Segoe UI,Arial,sans-serif;text-align:left}.brand small,.eyebrow{font-family:Inter,Segoe UI,Arial,sans-serif}.brand small{font-size:9px}.hero{background:#102c45 url(assets/hero.png) center/cover}.pill{white-space:nowrap}.header-right{flex-shrink:0}@media(max-width:720px){.app>nav{transform:none;max-width:none;width:100%;margin:0}.brand small{font-size:7px;letter-spacing:.65px}.status.info{font-size:12px}.hero{background-position:60% center}}

/* Match the retained learning library to the test-app theme. */
#guides .study-route,#guides .study-formula-card,#guides .study-task,#guides .study-lesson,#guides .study-related,#guides .study-empty{background:#102a3c;color:#d6e9f7;border-color:#31536c}
#guides .study-lead,#guides .study-count,#guides .study-route small,#guides .study-formula-card small,#guides .study-lesson>small{color:#99b7cc}
#guides .study-chain,#guides .study-known,#guides .study-check{background:#0a2334;color:#c2ddec;border-color:#31697c}
#guides .study-defend{background:#2d2b21;color:#e8d6ad}#guides .study-subtle{color:#bdb394}
#guides .study-card-action,#guides .study-text-button,#guides .study-source a{color:#83ceff}
#guides .study-categories button{background:#102c41;color:#b5d4e8;border-color:#32556e}#guides .study-categories button.selected{background:#0a73ba;color:white}
#guides .study-modes button{color:#90b0c8}#guides .study-modes button.selected{color:#8cd1ff;border-color:#189deb}
#guides .study-search input{background:#081d2e;color:#e7f5ff;border-color:#315c78}#guides .study-route,#guides .study-table{overflow-wrap:anywhere;min-width:0;max-width:100%}
/* Graphic teaching surfaces, household-first flow */
.visual-route{display:flex;align-items:center;justify-content:center;padding:25px 18px;margin:0 0 22px;background:linear-gradient(120deg,#123653,#071923);border:1px solid #2b607d;border-radius:18px;gap:10px}.visual-route>div{display:grid;justify-items:center;text-align:center;gap:8px;flex:1;min-width:0}.visual-route .ico{width:44px;height:44px;color:#43bcff;filter:drop-shadow(0 0 10px #0088ce)}.visual-route small{color:#9ec2d9;font-size:12px}.wire{height:2px;background:linear-gradient(90deg,#0786dc,#78e6ff);width:30px;flex-shrink:0}.visual-route.vertical{flex-direction:column;padding:24px 10px}.vertical .wire{width:2px;height:26px}.vertical>div{width:100%}.appliance-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:26px}.appliance{display:flex;align-items:center;flex-direction:column;gap:12px;background:linear-gradient(145deg,#173952,#081e30);color:#d9edfa;border:1px solid #305a74;border-radius:14px;padding:20px 5px;cursor:pointer}.appliance .ico{width:38px;height:38px;color:#6bcaff}.appliance.selected{background:linear-gradient(130deg,#056caf,#053962);border-color:#52caff;box-shadow:0 0 20px #0089ce30}.appliance b{font-size:13px}.calculate-wide{width:100%;margin-top:24px}#flow details{margin-top:20px;border-top:1px solid #31546b;padding-top:18px}#flow summary,#ttTool summary,#networkHub summary{cursor:pointer;color:#8ed6ff;font-weight:650;margin-bottom:18px}#flow [hidden]{display:none!important}#flow .step-track{grid-template-columns:repeat(3,1fr)}.network-card{border:1px solid #32536a;border-radius:14px;margin-bottom:16px;padding:18px;background:#0a2130}.network-card h3{display:flex;align-items:center;gap:12px}.network-card .result-line{gap:20px;overflow-wrap:anywhere}.network-card .result-line>b{max-width:65%;font-size:14px}.network-raw{white-space:pre-wrap;overflow-wrap:anywhere;max-height:400px;overflow:auto;color:#b7d8e9;font-size:12px}.practice-hero,.ai-roadmap{display:flex;gap:24px;align-items:center;background:linear-gradient(130deg,#273955,#11243b);padding:28px;border-radius:18px;border:1px solid #386081;margin-bottom:22px}.practice-hero>.ico,.ai-roadmap>.ico{width:64px;height:64px;flex-shrink:0;color:#ffc85c}.ai-roadmap>.ico{color:#45c3ff}.practice-hero p,.ai-roadmap p{margin-bottom:0;color:#b0c9dc}#practice #exerciseQuestion{line-height:1.5}#exerciseAnswers .primary{margin-top:18px}#exerciseFeedback{margin-top:18px}#exerciseScore{color:#87d3ff}#ttTool .panel{margin-bottom:20px}
@media(max-width:600px){.appliance-grid{grid-template-columns:repeat(2,1fr)}.visual-route{padding:18px 8px;gap:4px}.visual-route .ico{width:32px;height:32px}.visual-route b{font-size:13px}.visual-route small{font-size:11px}.wire{width:12px}.practice-hero,.ai-roadmap{padding:20px;gap:14px}.practice-hero>.ico,.ai-roadmap>.ico{width:36px;height:36px}.network-card .result-line{display:block}.network-card .result-line>b{display:block;max-width:100%;margin-top:5px}.connected-panel .section-heading{flex-wrap:wrap}}
@media(max-width:600px){#ttTool .results-grid{grid-template-columns:1fr}#ttTool .metric strong{white-space:nowrap}#flow .step-track .step{font-size:12px}}
.route-boundary{grid-column:1/-1;margin:0 0 18px;padding:14px 16px;border-left:4px solid #32b7ff;background:#0b3048;color:#bfe7ff;border-radius:9px;font-size:13px;line-height:1.6}.split-route-results{display:grid;grid-template-columns:1fr 1fr;gap:18px}.route-result{border-top:4px solid #1b9eea}.route-result:nth-child(2){border-top-color:#38c987}.route-result h2{min-height:42px}.appliance-grid{grid-template-columns:repeat(3,1fr)}@media(max-width:720px){.split-route-results{grid-template-columns:1fr}.appliance-grid{grid-template-columns:repeat(2,1fr)}.route-result h2{min-height:0}}