/* Version 1.1: a quiet entry, guided practice and form-based applications. */
/* Version 1.2: separate learning paths and explicit conceptual checkpoints. */
.course-picker{margin-bottom:25px;border:1px solid var(--line);border-radius:12px;background:white}.course-picker>summary{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:18px 22px;cursor:pointer;list-style:none;font-size:12px;color:var(--green)}.course-picker>summary b{display:block;color:var(--ink);font-size:16px}.course-picker>summary small{display:block;color:var(--muted);font-size:11px;margin-top:6px}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:0 18px 18px}.course-card{border:1px solid var(--line);border-radius:9px;padding:18px;display:flex;flex-direction:column}.course-card.current{border-color:#6da68a;background:#f1f7ee}.course-card h3{font-size:17px;margin:8px 0 10px;line-height:1.4}.course-card p{font-size:12px;color:var(--muted)}.course-card .tiny{font-size:10px}.course-card button{margin-top:auto;font-size:11px}.course-card .eyebrow{font-size:9px}.course-prerequisite{font-size:11px;color:var(--muted);padding:12px 10px;line-height:1.7;margin-bottom:0}.lesson-tools{display:flex;flex-wrap:wrap;gap:7px;margin:18px 0}.lesson-tools button{font-size:11px}.course-diagram{background:#eff5ec;border-radius:9px;padding:12px;margin:23px 0}.course-diagram svg{width:100%;height:180px;display:block}.lesson-quiz{border:1px solid #cbdcce;background:#f8faf5;border-radius:10px;padding:20px;margin:25px 0}.lesson-quiz h3,.reflection-form h3{font-size:16px;margin:0 0 13px}.lesson-quiz p{font-size:13px;line-height:1.7}.lesson-quiz>div{display:flex;flex-direction:column;gap:8px}.lesson-quiz button{text-align:left;font-size:12px;line-height:1.6;padding:11px 13px}.lesson-quiz button[aria-pressed=true]{border-color:var(--green);background:var(--mint)}.lesson-quiz p[role=status]{font-size:12px;margin:15px 0 0}.reflection-form{border:1px solid var(--line);border-radius:10px;padding:20px;margin:20px 0}.reflection-form p{font-size:13px}.reflection-form textarea{display:block;width:100%;min-height:125px;margin:12px 0}.reflection-form button{font-size:12px}.reflection-form .tiny{font-size:10px}.lesson-strip>details button{margin:4px 3px 4px 0}.lesson-menu>.eyebrow{line-height:1.6}.course-picker summary::-webkit-details-marker{display:none}
@media(max-width:950px){.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.course-picker>summary b{font-size:14px}}
@media(max-width:620px){.course-grid{grid-template-columns:1fr;padding:0 12px 12px}.course-picker>summary{padding:15px;align-items:flex-start}.course-picker>summary>span:last-child{font-size:10px;white-space:nowrap}.course-picker>summary b{font-size:13px}.course-picker>summary small{font-size:9px;line-height:1.5}.course-card{padding:15px}.course-card h3{font-size:16px}.course-prerequisite{grid-column:1/-1;margin:0;padding:6px 0;font-size:10px}.course-diagram svg{height:135px}.lesson-quiz,.reflection-form{padding:15px}.lesson-tools button{font-size:10px}.lesson-strip .eyebrow{line-height:1.6}}
.mobile-lesson-select{display:none}
body[data-view="learn"] .projectbar,body[data-view="knowledge"] .projectbar,body[data-view="journal"] .projectbar{display:none}
.learning-layout{display:grid;grid-template-columns:245px minmax(0,1fr);gap:26px;align-items:start}.lesson-menu{display:flex;flex-direction:column;gap:6px}.lesson-menu button{text-align:left;display:flex;align-items:center;gap:11px;border:0;background:transparent;padding:13px 10px;font-size:13px;line-height:1.45}.lesson-menu button span{font:12px var(--mono);color:var(--green)}.lesson-menu button.active{background:var(--mint)}.lesson-menu #free-lab{border-top:1px solid var(--line);margin-top:14px;padding-top:20px}.lesson-menu #legacy-project{font-size:11px;color:var(--muted)}.lesson-card{background:white;border:1px solid var(--line);border-radius:14px;padding:30px 36px}.lesson-topline{display:flex;justify-content:space-between;gap:12px;align-items:center}.lesson-status{font-size:11px;color:var(--muted)}.lesson-card h2{font-size:29px;margin:15px 0 10px}.lesson-goal{font-size:16px;color:var(--muted)}.lesson-illustration{display:flex;align-items:center;justify-content:center;gap:40px;background:#eef5ec;border-radius:10px;padding:26px;margin:22px 0;color:var(--green)}.lesson-illustration>span{font-size:28px}.lesson-steps{padding-left:27px;margin:26px 0}.lesson-steps li{padding-left:9px;margin-bottom:15px;line-height:1.7}.lesson-steps li::marker{color:var(--green);font-weight:700}.lesson-explanation{background:#f5f7f1;border-left:3px solid #8fb48c;padding:16px 19px;font-size:13px}.lesson-explanation p{margin:5px 0 0}.lesson-hint{margin:20px 0;font-size:13px}.lesson-hint summary{cursor:pointer}.lesson-hint p{margin:12px 0}.lesson-actions{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0 15px}.lesson-feedback{font-size:13px;line-height:1.7}.success{color:#14785f}.teacher-section{margin-top:35px;padding-top:20px;border-top:1px solid var(--line)}.teacher-section>summary{cursor:pointer;font-size:12px;color:var(--muted)}.advanced-heading{grid-column:1/-1;font-size:19px;margin:25px 0 0}.example-picker{position:relative;font-size:11px}.example-picker>summary{cursor:pointer;padding:11px 10px;color:var(--muted)}.example-picker>div{position:absolute;right:0;top:38px;z-index:10;width:270px;padding:14px;border:1px solid var(--line);border-radius:9px;background:white;box-shadow:0 8px 25px #163b3920}.example-picker select{width:100%;margin-bottom:10px}.lesson-strip{grid-column:1/-1;background:#eef5e9;border-bottom:1px solid var(--line);padding:13px 22px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}.lesson-strip>div{margin-right:auto}.lesson-strip .eyebrow{margin-bottom:3px}.lesson-strip>details{max-width:590px;font-size:12px}.lesson-strip>details summary{cursor:pointer}.lesson-strip ol{line-height:1.7;margin:14px 0}.lesson-strip button{font-size:11px;padding:8px 10px}.modebar{grid-column:1/-1;display:flex;align-items:center;gap:20px;padding:10px 22px;background:white;border-bottom:1px solid var(--line)}.modebar>div{display:flex;gap:5px;flex-shrink:0}.modebar p{font-size:12px;color:var(--muted);margin:0;flex:1}.modebar>button{font-size:11px}.modebar button.active{background:var(--ink);color:white}.empty-canvas{position:absolute;inset:0;display:flex;justify-content:center;align-items:center;flex-direction:column;text-align:center;pointer-events:none;padding:25px}.empty-canvas[hidden]{display:none}.empty-canvas b{font-size:22px}.empty-canvas p{color:var(--muted);font-size:13px}.workspace{align-self:start}.canvas-wrap{height:390px;min-height:0;flex:none}#canvas{height:390px;min-height:0;max-height:none}.library h2{font-size:20px}.library .tip{display:none}.library .device-library{margin-top:12px}.library [data-add="router"],.library [data-add="ap"],.library [data-add="hub"]{display:none}.library.expanded [data-add]{display:flex}.library #more-devices{font-size:10px;width:100%;margin-top:8px;background:transparent}.inspector{max-height:740px}.inspector form{gap:13px}.inspector .network-extra{border:0;padding:0;margin:0}.network-extra label{margin:12px 0}.inspector .network-extra summary{font-size:11px;font-weight:400;color:var(--muted)}.inspector details p{font-size:11px}.service-status{margin-top:24px}.service-status p{display:flex;align-items:center;gap:7px;font-size:11px}.service-status b{font-size:10px;font-weight:400;color:var(--muted);margin-left:auto}.status-dot{display:inline-block;width:7px;height:7px;background:#bdc9c1;border-radius:50%;flex-shrink:0}.status-dot.on{background:#19836d}.application-intro{padding:22px}.application-intro p{font-size:12px;color:var(--muted);max-width:550px}.application-intro button{font-size:12px}.application-heading{padding:15px 18px 10px;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px}.app-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;padding:5px 15px 12px}.app-grid button{text-align:left;padding:13px 10px;display:flex;flex-direction:column;gap:7px;align-items:flex-start;font-size:12px}.app-grid button>span:not(.status-dot){font-size:21px;color:var(--green)}.app-grid small{font-size:10px;color:var(--muted);font-weight:400;line-height:1.5}.app-grid b{font-size:11px;font-weight:600}.server-apps{padding:3px 0 12px}.server-apps>summary{font-size:11px;margin:0 18px 10px;cursor:pointer;color:var(--green)}#applications{height:310px;overflow:auto;background:white}.simple-form{display:flex;flex-direction:column;gap:18px;margin:20px 0}.simple-form label{font-size:13px}.simple-form textarea{font-size:14px;min-height:130px}.simple-form .service-toggle{display:flex;flex-direction:row;align-items:center;gap:12px;background:var(--mint);border-radius:8px;padding:16px}.service-toggle input{width:19px;height:19px;accent-color:var(--green)}.dns-row{display:grid;grid-template-columns:1fr 20px 1fr 35px;align-items:center;gap:7px;margin:10px 0}.dns-row input{width:100%;font-size:13px}.dns-row span{text-align:center}.dns-row button{padding:6px}.mail-item{padding:12px;background:var(--paper);border-radius:7px}.mail-item p{white-space:pre-wrap;margin:9px 0 0}#application-result{white-space:pre-wrap;line-height:1.7;background:var(--paper);padding:16px;border-radius:7px;min-height:0}#application-result:empty{display:none}button:disabled{cursor:default;opacity:.45}body[data-mode="run"] .node{cursor:pointer}body[data-mode="run"] #connect-mode{opacity:.45}body[data-mode="build"] .canvas-caption span:last-child{display:inline}body[data-mode="run"] .canvas-caption span:last-child{display:none}
@media(max-width:1150px){.app-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.modebar{gap:10px}.modebar p{font-size:10px}.learning-layout{grid-template-columns:210px minmax(0,1fr)}.lesson-card{padding:25px}.library h2{font-size:17px}}
@media(max-width:850px){.lesson-strip,.modebar{grid-column:1/-1}.library #more-devices{width:auto;margin:0}.learning-layout{grid-template-columns:180px minmax(0,1fr)}.lesson-menu button{font-size:11px}.lesson-illustration{gap:22px}.lesson-card h2{font-size:25px}.canvas-wrap,#canvas{height:340px}.library.expanded .device-library{flex-wrap:wrap}.inspector{max-height:none}.modebar p{display:none}.modebar>button{margin-left:auto}}
@media(max-width:620px){.learning-layout{grid-template-columns:1fr}.lesson-menu{display:grid;grid-template-columns:1fr 1fr;gap:4px}.lesson-menu>.eyebrow{grid-column:1/-1}.lesson-menu button{padding:9px;font-size:11px}.lesson-menu #free-lab,.lesson-menu #legacy-project{grid-column:1/-1;margin:0;padding:10px}.lesson-card{padding:20px}.lesson-card h2{font-size:25px}.lesson-steps{font-size:13px}.lesson-strip{padding:12px;gap:10px}.lesson-strip>details{order:4;flex-basis:100%}.lesson-strip>div{flex-basis:100%}.modebar{padding:9px 12px;gap:8px}.modebar button{font-size:10px;padding:8px}.modebar>button{font-size:9px}.canvas-wrap,#canvas{height:300px}.workspace{align-self:stretch;min-height:0}#applications{height:330px}.inspector form{display:flex}.lesson-illustration{gap:16px}.dns-row{grid-template-columns:minmax(0,1fr) 15px minmax(0,1fr) 30px;gap:4px}.dns-row input{font-size:11px;padding:8px 5px}.application-heading{flex-wrap:wrap}.example-picker>summary{font-size:10px}.lesson-topline{flex-wrap:wrap}.lesson-status{font-size:10px}.projectbar strong{font-size:14px}.library #more-devices{font-size:9px}.simple-form .formgrid{grid-template-columns:1fr}}
@media(max-width:620px){.mobile-lesson-select{display:flex;grid-column:1/-1;margin-bottom:6px}.lesson-menu button[data-lesson]{display:none}.lesson-menu{margin-bottom:0}.lesson-menu #legacy-project{font-size:10px}.lesson-menu #free-lab{padding:6px 0}.lesson-card .eyebrow{font-size:9px}}