@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Space+Grotesk:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');
:root{color-scheme:dark;--bg:#080c11;--panel:#0f151d;--line:#222c36;--text:#e9eff4;--muted:#91a0ae;--mint:#63e9c3;--purple:#bba2fa;--blue:#75b9ff;--font:'DM Sans',sans-serif;--mono:'IBM Plex Mono',monospace}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 var(--font)}button,input,select{font:inherit}button,a,input,select{ -webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}button:disabled{cursor:default;opacity:.5}a{color:inherit;text-decoration:none}button{background:none;border:0}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--mint);outline-offset:4px}[hidden]{display:none!important}.app-shell{display:flex;min-height:100vh}.sidebar{width:248px;flex-shrink:0;border-right:1px solid var(--line);padding:31px 20px 20px;display:flex;flex-direction:column;background:#0b1016;position:fixed;inset:0 auto 0 0;z-index:5}.brand{display:flex;align-items:center;gap:12px;margin:0 5px 47px;font:700 29px/1.1 'Space Grotesk',sans-serif;letter-spacing:-1.2px}.brand-light{font-weight:400;color:#c1cbd4}.brand-icon{width:39px;height:43px;display:grid;place-items:center;background:#163029;border:1px solid #285447;border-radius:11px;color:var(--mint);font-size:28px}.brand small{display:block;font:500 8px var(--mono);letter-spacing:1.6px;color:#8b9aab;margin-top:10px}.nav-label{font:500 11px var(--mono);letter-spacing:1.25px;color:#677989;padding:0 12px;margin-bottom:12px}.main-nav{display:grid;gap:7px}.main-nav button{display:flex;align-items:center;text-align:left;gap:11px;font-size:14px;padding:12px 12px;border-radius:7px;color:#a5b2bf}.main-nav button span{font-size:20px;line-height:1}.main-nav button.active{background:#163027;color:var(--mint)}kbd{font:11px var(--mono);padding:0 5px;border:1px solid #3f5a50;border-radius:3px;margin-left:auto}.sidebar-line{height:1px;background:var(--line);margin:30px 12px}.lesson-nav{display:grid;gap:8px}.lesson-nav button{text-align:left;display:flex;align-items:center;gap:12px;padding:9px 11px;font-size:14px;color:#9daab7}.lesson-nav .number{font:12px var(--mono);color:#697888;border:1px solid #29333f;border-radius:50%;display:grid;place-items:center;width:24px;height:24px;flex-shrink:0}.lesson-nav button.active{color:#ecf2f8}.lesson-nav button.active .number{background:var(--mint);border-color:var(--mint);color:#062017}.lesson-nav button.done .number{color:var(--mint);border-color:#4d947d}.lesson-nav button .lesson-active{width:4px;height:4px;border-radius:50%;background:var(--mint);margin-left:auto}.sidebar-bottom{margin-top:auto;padding-top:30px}.progress-head{display:flex;justify-content:space-between;font-size:12px;padding:0 11px;color:#b3c1ce}.progress-head span:last-child{color:#8292a1;font-family:var(--mono)}.progress-track{background:#222c35;border-radius:4px;height:4px;margin:13px 11px}.progress-track div{height:100%;background:var(--mint);width:0;transition:width .4s}.sidebar-bottom p{font-size:12px;color:#6c7e8f;margin:0 11px 23px}.profile{border-top:1px solid var(--line);padding:22px 9px 0;display:flex;align-items:center;gap:10px}.avatar{width:33px;height:33px;background:#292c39;border-radius:50%;display:grid;place-items:center;font-size:14px;color:#b7bfde}.profile strong{font-size:12px;font-weight:500;display:block}.profile small{font-size:10px;display:block;color:#7d8b9a}.profile-spark{color:#6d7d8e;margin-left:auto}.page{margin-left:248px;flex:1;min-width:0}.topbar{height:77px;border-bottom:1px solid var(--line);padding:0 38px;display:flex;align-items:center;justify-content:space-between}.breadcrumb{font-size:13px;color:#8090a1;display:flex;gap:15px}.breadcrumb strong{font-weight:500;color:#c1ccd6}.breadcrumb span{color:#455361}.top-actions{display:flex;align-items:center;gap:20px}.sandbox-badge{font:11px var(--mono);color:#a2b3be;display:flex;align-items:center;gap:8px}.sandbox-badge i{height:5px;width:5px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px #63e9c366}.icon-button{color:#8798a8;border:1px solid #2d3945;border-radius:50%;width:24px;height:24px;font-size:12px;padding:0}.icon-button:hover{color:var(--mint);border-color:var(--mint)}main{max-width:1600px;margin:auto;padding:35px 38px 0}.intro{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}.eyebrow{font:10px var(--mono);letter-spacing:2px;color:var(--mint);display:flex;align-items:center;gap:8px}.eyebrow span{width:16px;height:1px;background:var(--mint)}h1{font:500 clamp(32px,3vw,44px)/1.25 'Space Grotesk',sans-serif;letter-spacing:-1.6px;margin:10px 0 7px}h1 span{color:var(--mint)}.intro p{color:var(--muted);font-size:15px;margin:0}.quiet-button{display:flex;align-items:center;gap:9px;border:1px solid #33414e;background:#141c25;padding:10px 15px;font-size:12px;border-radius:6px}.quiet-button span{color:var(--mint);font-size:20px;line-height:1}.quiet-button:hover{border-color:var(--mint)}.workspace-tabs{display:flex;align-items:center;border-bottom:1px solid var(--line);margin-bottom:24px;gap:28px}.workspace-tabs button{font-size:13px;color:#8698a8;display:flex;align-items:center;gap:9px;padding:0 1px 15px;border-bottom:2px solid transparent}.workspace-tabs button.active{color:var(--mint);border-bottom-color:var(--mint)}.workspace-tabs button>span:first-child{font-size:17px}.tab-badge{font:9px var(--mono);border:1px solid #2b3946;padding:2px 5px;color:#8395a5;border-radius:4px}.tabs-end{margin-left:auto;font:9px var(--mono);letter-spacing:1px;color:#5c7182;padding-bottom:15px}.lab-grid{display:grid;grid-template-columns:minmax(0,1fr) 304px;gap:20px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden}.panel-head{height:59px;display:flex;align-items:center;justify-content:space-between;padding:0 22px;border-bottom:1px solid var(--line);gap:10px}.panel-title{display:flex;align-items:center;gap:10px}.panel-title strong{font-size:13px;font-weight:500}.tiny-branch{color:var(--mint);font-size:22px}.graph-head-actions{display:flex;align-items:center;gap:12px}.repo-tag{font:10px var(--mono);color:#8b9eae;background:#18222c;padding:4px 8px;border-radius:4px}.graph-head-actions button{color:#8ea0af;font-size:22px;line-height:1}.graph-toolbar{display:flex;justify-content:space-between;padding:23px 23px 0}.local-label{font:9px var(--mono);letter-spacing:1.15px;color:#6e8395}.local-label>span:first-child{font-size:15px;margin-right:5px}.graph-legend{display:flex;gap:14px;font:10px var(--mono);color:#8c9dad}.graph-legend span{display:flex;align-items:center;gap:5px}.graph-legend i{width:5px;height:5px;border-radius:50%}.mint{background:var(--mint)}.purple{background:var(--purple)}.blue{background:var(--blue)}.graph{height:236px;position:relative;background-image:radial-gradient(#33475366 .75px,transparent .75px);background-size:18px 18px;overflow:hidden}.graph:after{content:'';position:absolute;pointer-events:none;inset:0;background:radial-gradient(ellipse at center,transparent 20%,#0f151d 90%)}.graph svg{position:relative;z-index:1;width:100%;height:100%;overflow:visible}.graph text{font-family:var(--mono)}.commit-node{cursor:pointer}.commit-node:hover .node-core{stroke:white;stroke-width:3}.node-ring{animation:breathe 4s ease-in-out infinite;transform-box:fill-box;transform-origin:center}.commit-node.new-node{animation:node-in .65s ease-out}.graph-edge{stroke-dasharray:800;stroke-dashoffset:0;animation:draw-edge 1s ease-out}.graph-status{display:flex;justify-content:space-between;margin:0 24px 20px;font-size:10px;color:#6f8597}.graph-status>span:first-child{color:#a1b5c5;display:flex;gap:7px;align-items:center}.graph-status i{width:5px;height:5px;background:var(--mint);border-radius:50%}.graph-status code{font:10px var(--mono);color:var(--mint)}.file-zones{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:0 22px 19px}.file-zone{border:1px solid #293643;border-radius:7px;padding:12px;background:#111a23;min-height:87px;transition:border-color .3s,background .3s}.file-zone.active{border-color:#438570;background:#13271f}.zone-title{display:flex;gap:7px;font-size:11px;color:#94a7b8;align-items:center;margin-bottom:10px}.zone-title b{font-weight:400;color:#8da3b4;font-size:14px}.zone-count{margin-left:auto;font:9px var(--mono);background:#24313b;border-radius:3px;padding:0 4px}.zone-file{display:flex;align-items:center;font:10px var(--mono);color:#c2d0db;gap:6px;animation:node-in .45s}.zone-file em{font-style:normal;color:var(--mint);margin-left:auto}.zone-empty{font-size:10px;color:#688092}.visual-bottom{border-top:1px solid var(--line);padding:13px 22px;background:#111b24;color:#96aebf;font-size:11px;display:flex;align-items:center;gap:10px;min-height:47px}.pulse-icon{color:var(--mint);font-size:19px}.guide-panel{padding:24px 22px 16px;display:flex;flex-direction:column}.lesson-meta{display:flex;justify-content:space-between;font:9px var(--mono);letter-spacing:1px;color:var(--mint)}.lesson-meta span:last-child{color:#728698;letter-spacing:.5px}.guide-panel h2{font:500 22px/1.3 'Space Grotesk',sans-serif;letter-spacing:-.55px;margin:17px 0 9px}.guide-panel>p{font-size:12px;line-height:1.75;color:#8ea2b4;margin:0 0 18px}.guide-steps{display:grid;gap:0}.guide-step{display:flex;gap:12px;padding:10px 0;position:relative;align-items:flex-start}.guide-step:not(:last-child):after{content:'';position:absolute;left:11.5px;top:39px;bottom:-7px;height:auto;border-left:1px solid #33404c;pointer-events:none}.step-circle{border:1px solid #34424f;color:#73889b;border-radius:50%;width:24px;height:24px;display:grid;place-items:center;font:10px var(--mono);flex-shrink:0}.guide-step.current .step-circle{border-color:var(--mint);background:#17382e;color:var(--mint);box-shadow:0 0 18px #63e9c317}.guide-step.done .step-circle{background:var(--mint);border-color:var(--mint);color:#092016}.guide-step strong{display:block;font-size:12px;font-weight:500;color:#afbecc}.guide-step.current strong{color:#edf6f4}.guide-step small{display:block;font:10px var(--mono);color:#6b8296;margin-top:1px}.insight{display:flex;gap:11px;border:1px solid #263b3b;background:#12211f;border-radius:6px;margin:19px 0 18px;padding:12px}.insight>span{color:var(--mint);font-size:19px}.insight strong{font-size:10px;font-weight:500;color:var(--mint)}.insight p{font-size:11px;line-height:1.7;color:#9db9b3;margin:4px 0 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var(--mono);scrollbar-width:thin;scrollbar-color:#344651 transparent}.terminal-welcome{color:#7691a3}.terminal-welcome span{color:var(--mint);margin-right:6px}.terminal-line{white-space:pre-wrap;overflow-wrap:anywhere}.terminal-line.command{color:#c8d8e2}.terminal-line.success{color:var(--mint)}.terminal-line.error{color:#f6ad85}.terminal-line.info{color:#93aabd}#terminal-form{display:flex;align-items:center;gap:10px;padding:9px 22px 16px;font:11px var(--mono)}.prompt{white-space:nowrap;color:#d4dfeb}.prompt span{color:var(--purple)}.prompt b{color:var(--mint);font-size:17px;margin-left:6px}#command-input{background:none;outline:none!important;color:#e2edf5;border:0;flex:1;min-width:20px;padding:7px 0;font:12px var(--mono)}#command-input::placeholder{color:#526d81}#terminal-form button{color:#768c9d;border:1px solid #2c3a45;padding:1px 6px;border-radius:4px}.command-chips{border-top:1px solid var(--line);padding:12px 22px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}.command-chips:before{content:'QUICK COMMANDS';font:9px var(--mono);letter-spacing:1px;color:#657c8e;margin-right:5px}.command-chips button{font:10px var(--mono);color:#9eb3c4;padding:5px 9px;border:1px solid #293d4c;border-radius:4px;background:#14212b;transition:border-color .2s}.command-chips button:hover{border-color:var(--mint);color:var(--mint)}.bottom-notes{display:flex;justify-content:space-between;align-items:center;margin:23px 0 25px;gap:15px}.bottom-notes>div{display:flex;gap:12px;align-items:center}.note-icon{font-size:23px;color:#6e8598}.bottom-notes strong{font-size:11px;font-weight:500;color:#a2b4c3}.bottom-notes p{font-size:11px;color:#698194;margin:2px 0 0}.bottom-notes a{color:#6e869a;font-size:10px}.bottom-notes a:hover{color:var(--mint)}.bottom-notes a span{margin-left:7px}footer{border-top:1px solid #1e2933;margin:0 38px;padding:19px 0;display:flex;justify-content:space-between;font:9px var(--mono);letter-spacing:1px;color:#536b7e}footer i{font-style:normal;padding:0 9px;color:#2b4355}footer>span:last-child{letter-spacing:0;font-family:var(--font);font-size:10px}.mint-text{color:var(--mint);margin-left:7px}.alternate-view{padding-bottom:35px}.alternate-view h2{font:500 26px 'Space Grotesk';margin-top:0}.reference-search{width:100%;padding:14px 18px;background:#111c26;border:1px solid var(--line);border-radius:7px;color:white;margin-bottom:20px}.reference-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.reference-card{border:1px solid var(--line);background:var(--panel);border-radius:8px;padding:20px}.reference-card code{font:14px var(--mono);color:var(--mint)}.reference-card p{font-size:14px;color:#9fb2c1;margin:12px 0}.reference-card small{font-size:12px;color:#7791a5}.reference-card button{color:var(--mint);font-size:12px;border:1px solid #315849;padding:6px 9px;border-radius:4px;margin-top:13px}.challenge-header{font-size:16px;color:#9eb2c2;max-width:660px}.challenge-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.challenge-card{padding:25px;border:1px solid var(--line);border-radius:10px;background:var(--panel);display:flex;flex-direction:column}.challenge-card>span{font:12px var(--mono);color:var(--mint)}.challenge-card h3{font:500 20px 'Space Grotesk'}.challenge-card p{font-size:14px;color:#96abba;line-height:1.8;flex:1}.challenge-card button{margin-top:24px}.quiz-options{display:grid;gap:12px;margin:20px 0}.quiz-options button{text-align:left;border:1px solid #334654;border-radius:6px;padding:13px;font-size:14px}.quiz-options button:hover{border-color:var(--mint);background:#152b24}.quiz-result{color:var(--mint);font-size:14px}dialog{background:#111c25;border:1px solid #415968;color:var(--text);border-radius:13px;padding:30px;max-width:520px;width:calc(100% - 36px);box-shadow:0 20px 130px #0009}dialog::backdrop{background:#02080bd9;backdrop-filter:blur(7px)}.dialog-close{position:absolute;right:14px;top:10px;font-size:25px;color:#89a0b2}dialog h2{font:500 24px 'Space Grotesk';margin:8px 0 15px}dialog p{font-size:15px;color:#a5bac9;line-height:1.8}dialog code{color:var(--mint);font:13px var(--mono)}dialog .detail-label{font:11px var(--mono);color:var(--mint);letter-spacing:1px}dialog a{color:var(--mint);text-decoration:underline}#toast{position:fixed;bottom:24px;left:calc(50% + 100px);transform:translate(-50%,15px);padding:12px 20px;border-radius:8px;color:var(--mint);background:#173229;border:1px solid #3e8069;font-size:13px;pointer-events:none;opacity:0;transition:all .2s;z-index:15;max-width:80vw}#toast.show{opacity:1;transform:translate(-50%,0)}.team-labels{position:absolute;z-index:2;top:14px;left:24px;display:flex;gap:12px}.team-person{display:flex;align-items:center;gap:7px;font-size:10px;color:#a1b5c7}.team-person b{font-weight:500;background:#253330;border:1px solid #456a5e;color:var(--mint);width:21px;height:21px;display:grid;place-items:center;border-radius:50%}.team-person:nth-child(2) b{background:#2c253a;border-color:#68517e;color:var(--purple)}.team-person:nth-child(3) b{background:#1c2b3b;border-color:#416485;color:var(--blue)}.conflict-editor{padding:14px 22px 20px}.conflict-editor pre{background:#111821;border:1px solid #4b3940;border-radius:6px;padding:12px;overflow:auto;font:11px/1.9 var(--mono);color:#f6ad85}.conflict-options{display:flex;gap:8px;flex-wrap:wrap}.conflict-options button{font-size:11px;color:#b6cad7;border:1px solid #3e5361;border-radius:5px;padding:8px}.conflict-options button.chosen{border-color:var(--mint);color:var(--mint);background:#18382e}.conflict-editor p{font-size:12px;color:#9db3c2}.motion-paused *,.motion-paused *:after{animation-play-state:paused!important}.guide-panel.completed{border-color:#416a5b}button{transition:color .2s,background .2s,border-color .2s}button:hover{color:var(--mint)}.primary-button:hover{color:#08261b}@keyframes breathe{0%,100%{opacity:.25;transform:scale(1)}50%{opacity:.55;transform:scale(1.15)}}@keyframes node-in{from{opacity:0;transform:translateY(9px)}to{opacity:1;transform:translateY(0)}}@keyframes draw-edge{from{stroke-dashoffset:800}to{stroke-dashoffset:0}}@media(min-width:1550px){main{padding-top:48px}.graph{height:280px}.guide-panel{padding:28px}.lab-grid{grid-template-columns:minmax(0,1fr) 350px}.guide-panel h2{font-size:26px}.guide-panel>p{font-size:14px}.guide-step strong{font-size:14px}.guide-step small{font-size:12px}.insight p{font-size:13px}.panel-title strong{font-size:15px}}@media(max-width:1150px){.sidebar{width:208px;padding-left:12px;padding-right:12px}.page{margin-left:208px}main{padding:27px 23px 0}.topbar{padding:0 23px}.lab-grid{grid-template-columns:minmax(0,1fr) 270px;gap:14px}.guide-panel{padding:21px 18px 15px}.graph-toolbar{padding-left:16px;padding-right:16px}.file-zones{padding-left:14px;padding-right:14px;gap:8px}.file-zone{padding:9px}.zone-title{font-size:10px;gap:4px}.terminal-subtitle,.tabs-end{display:none}.brand{font-size:26px;margin-bottom:37px}.graph-status{margin-left:16px;margin-right:16px}.graph-legend{gap:7px}.bottom-notes a{max-width:180px;text-align:right}footer{margin-left:23px;margin-right:23px}}@media(max-width:900px){.sidebar{width:185px}.page{margin-left:185px}.brand{gap:8px;font-size:23px}.brand-icon{width:31px;height:36px;font-size:23px}.brand small{font-size:7px;letter-spacing:1.1px}.main-nav button{font-size:12px;padding:11px 9px}.lesson-nav button{font-size:12px;padding:9px 8px;gap:9px}.lab-grid{grid-template-columns:1fr}.guide-panel{display:grid;grid-template-columns:1fr 1fr;gap:0 25px}.lesson-meta{grid-column:1/-1}.guide-panel h2{grid-column:1}.guide-panel>p{grid-column:1}.guide-steps{grid-column:2;grid-row:2/5}.insight{grid-column:1;margin-top:4px}.primary-button{grid-column:1/-1}.guide-foot{grid-column:1/-1}.graph{height:250px}.zone-title{font-size:12px}.file-zone{padding:13px}.zone-file,.zone-empty{font-size:11px}.reference-grid{grid-template-columns:1fr}.challenge-list{grid-template-columns:1fr}.intro h1{font-size:34px}.quiet-button{font-size:11px;padding:8px 10px}.graph-legend{gap:14px}}@media(max-width:650px){.sidebar{position:relative;width:auto;border-right:0;border-bottom:1px solid var(--line);padding:15px 17px;display:block}.app-shell{display:block}.brand{margin:0;font-size:24px}.brand small{font-size:7px}.brand-icon{width:32px;height:34px}.sidebar .nav-label,.sidebar-line,.sidebar-bottom{display:none}.main-nav{display:flex;gap:4px;margin-top:18px;overflow:auto}.main-nav button{font-size:11px;padding:8px 9px;white-space:nowrap}.main-nav button>span{font-size:15px}kbd{display:none}.lesson-nav{display:flex;gap:6px;overflow:auto;margin-top:15px;scrollbar-width:none}.lesson-nav button{font-size:11px;padding:3px 5px;white-space:nowrap}.lesson-nav button .lesson-active{display:none}.lesson-nav .number{width:20px;height:20px;font-size:10px}.page{margin-left:0}.topbar{height:52px;padding:0 19px}.breadcrumb{font-size:11px;gap:10px}.top-actions{gap:13px}.sandbox-badge{font-size:9px}main{padding:25px 17px 0}.intro{margin-bottom:26px;gap:9px}.intro h1{font-size:30px;letter-spacing:-1px}.intro p{font-size:12px}.eyebrow{font-size:8px}.quiet-button{font-size:10px;padding:7px 9px}.quiet-button span{font-size:15px}.workspace-tabs{gap:17px;margin-bottom:18px}.workspace-tabs button{font-size:11px;gap:6px}.tab-badge{font-size:8px}.graph{height:220px}.panel-head{padding:0 15px;height:50px}.panel-title 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/* Comfortable reading at every viewport; metadata remains secondary. */
.brand small{font-size:9px;letter-spacing:1px}.nav-label{font-size:12px;letter-spacing:.8px}.main-nav button,.lesson-nav button{font-size:14px}.profile strong,.profile small{font-size:12px}.intro p{font-size:16px}.quiet-button,.workspace-tabs button{font-size:14px}.eyebrow,.tab-badge,.tabs-end{font-size:12px}.panel-title strong{font-size:14px}.repo-tag,.local-label,.graph-legend{font-size:12px}.graph-status{font-size:12px}.graph-status code{font-size:12px}.zone-title{font-size:14px;line-height:1.4}.zone-count,.zone-file,.zone-empty{font-size:12px}.file-zone{min-height:100px}.visual-bottom{font-size:14px;line-height:1.6}.lesson-meta{font-size:12px;letter-spacing:.4px}.guide-panel>p{font-size:16px;line-height:1.6}.guide-step strong{font-size:14px}.guide-step small{font-size:12px}.guide-step{padding:11px 0}.insight strong{font-size:14px}.insight p{font-size:14px;line-height:1.6}.primary-button{font-size:14px}.guide-foot{font-size:12px}.terminal-subtitle,.simulation-label{font-size:12px}.terminal-panel .panel-head{min-height:55px}.terminal-subtitle{display:none}#terminal-output{font-size:13px;min-height:78px;max-height:180px}#terminal-form,.prompt{font-size:12px}#command-input{font-size:14px}.command-chips:before,.command-chips button{font-size:12px}.bottom-notes strong,.bottom-notes p,.bottom-notes a{font-size:12px}.bottom-notes a{max-width:225px}.reference-card p,.challenge-card p{font-size:16px}.team-person{font-size:12px}.team-person b{width:24px;height:24px}.conflict-editor p{font-size:14px}.conflict-editor pre{font-size:13px}.conflict-options button{font-size:14px}.graph{min-height:260px}.graph-toolbar{gap:10px;flex-wrap:wrap}.zone-title{flex-wrap:wrap}.zone-count{margin-left:0}.file-zones{gap:9px}.graph-status{gap:12px}.visual-panel{display:flex;flex-direction:column}.visual-panel .graph{flex:1}.sandbox-badge{font-size:12px}.guide-panel{min-width:0}.lesson-meta{gap:8px}.guide-panel h2{font-size:24px}.workspace-tabs{gap:22px}.tabs-end{display:none}
@media(max-width:1150px){.sidebar{width:225px}.page{margin-left:225px}.lab-grid{grid-template-columns:minmax(0,1fr) 296px}.main-nav button{gap:9px}.lesson-nav button{gap:8px}.brand{font-size:26px}.brand small{font-size:8px}.local-label,.graph-legend{font-size:11px}.file-zones{grid-template-columns:repeat(3,minmax(0,1fr))}.zone-title{font-size:12px}.visual-bottom{font-size:13px}.graph-status{font-size:11px}}
@media(max-width:1050px){.lab-grid{grid-template-columns:1fr}.guide-panel{display:grid;grid-template-columns:1fr 1fr;gap:0 25px}.lesson-meta{grid-column:1/-1}.guide-panel h2{grid-column:1}.guide-panel>p{grid-column:1}.guide-steps{grid-column:2;grid-row:2/5}.insight{grid-column:1;margin-top:4px}.primary-button,.guide-foot{grid-column:1/-1}.graph{height:260px;flex:none!important}.quiet-button{font-size:12px}.intro h1{font-size:34px}.team-person{font-size:11px}}
@media(max-width:650px){.sidebar{width:auto}.page{margin-left:0}.main-nav button{font-size:12px;padding:9px 8px}.main-nav button>span{display:none}.lesson-nav button{font-size:12px}.brand small{font-size:8px}.quiet-button{font-size:12px;max-width:130px;line-height:1.5}.intro h1{font-size:31px}.intro p{font-size:14px}.eyebrow{font-size:12px;letter-spacing:1px}.workspace-tabs{gap:14px}.workspace-tabs button{font-size:13px}.tab-badge{display:none}.guide-panel{display:flex;padding:23px}.lesson-meta{gap:15px}.guide-panel h2{font-size:25px;margin:18px 0 10px}.guide-panel>p{font-size:16px}.guide-step strong{font-size:14px}.guide-step small{font-size:12px}.guide-steps{margin:10px 0}.insight{margin:16px 0}.guide-foot{margin-top:16px}.zone-title{font-size:12px}.zone-file,.zone-empty{font-size:12px;overflow-wrap:anywhere}.file-zones{padding:0 12px 15px}.file-zone{padding:10px 8px}.local-label,.graph-legend{font-size:11px}.graph-status{font-size:11px;flex-wrap:wrap}.visual-bottom{font-size:13px}.simulation-label{font-size:10px}.terminal-panel .panel-title strong{font-size:13px}#terminal-output{font-size:12px}#terminal-form{flex-wrap:wrap}.prompt{font-size:12px}#command-input{font-size:13px;min-width:80px}.command-chips button{font-size:12px}.team-labels{gap:9px;flex-wrap:wrap}.team-person{font-size:10px}.sandbox-badge{font-size:11px}.bottom-notes p,.bottom-notes strong,.bottom-notes a{font-size:12px}.brand{font-size:26px}}
/* Beginner path: the familiar story comes before the command. */
.section-kicker{display:block;font:12px/1.6 var(--mono);letter-spacing:1px;color:var(--mint)}.beginner-welcome{max-width:810px;padding:9px 0 26px}.beginner-welcome h2{font:500 clamp(28px,3vw,42px)/1.2 'Space Grotesk',sans-serif;letter-spacing:-1px;margin:13px 0 17px}.beginner-welcome h2 span{color:var(--mint)}.beginner-welcome p,.intro-concepts p,.recipe-coach>p,.intro-next p,.dictionary-heading>p{font-size:16px;line-height:1.8;color:#a5bac9;margin:0}.intro-concepts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin:0 0 29px}.intro-concepts article{border-top:1px solid #35564a;padding-top:17px}.concept-number{font:12px var(--mono);color:#6e9b88}.intro-concepts h3{font:500 22px 'Space Grotesk';margin:9px 0}.intro-concepts code{font:13px var(--mono);color:#ccdbc9;overflow-wrap:anywhere}.term-link{padding:0;color:var(--mint);border-bottom:1px dotted #6abc9e}.recipe-demo{margin-bottom:27px}.recipe-grid{display:grid;grid-template-columns:1.12fr 1fr;gap:38px;padding:29px}.recipe-page{border:1px solid #345749;background:linear-gradient(135deg,#15241f,#14212a);padding:25px 22px;margin:15px 0;border-radius:8px;transition:background .3s,border-color .3s}.recipe-page.has-change{border-color:#aa8550;background:linear-gradient(135deg,#28231a,#17212a)}.recipe-file-label{font:12px var(--mono);letter-spacing:1.3px;color:#789e91}.recipe-page h3{font:500 26px/1.3 'Space Grotesk';margin:23px 0 12px;letter-spacing:-.5px}.recipe-page h3 span{color:var(--mint)}.recipe-page p{color:#a6bac6;font-size:16px;margin:0 0 23px}.recipe-page-status{font:12px var(--mono);color:#94b5a5;border-top:1px solid #365245;padding-top:14px}.recipe-tray,.recipe-github{display:flex;gap:14px;align-items:center;border:1px solid #304252;background:#14202a;padding:16px;border-radius:7px;transition:border-color .3s,background .3s}.recipe-tray>span,.recipe-github>span{font-size:25px;color:#90aabf}.recipe-tray strong,.recipe-github strong{font-size:14px;font-weight:500;color:#b9cfdc}.recipe-tray p,.recipe-github p{font-size:14px;line-height:1.6;color:#88a3b7;margin:4px 0 0}.recipe-tray.selected,.recipe-github.shared{background:#143027;border-color:#4a957c}.recipe-history{margin-top:25px}.recipe-history>p{font-size:14px;line-height:1.7;color:#9aafc1;margin:13px 0 0}#recipe-versions{display:flex;align-items:center;gap:8px;margin-top:12px;flex-wrap:wrap}.version-chip{display:flex;gap:8px;align-items:center;padding:7px 9px;border:1px solid #354756;border-radius:6px;color:#a6bac9;font-size:13px;background:#14212b;animation:node-in .3s}.version-chip>span{height:23px;width:23px;border:1px solid #5f927f;border-radius:50%;display:grid;place-items:center;color:var(--mint);font:12px var(--mono)}.version-chip.selected{border-color:var(--mint);color:#d9f2e8;background:#163126}#recipe-versions>i{width:12px;height:1px;background:#63e9c3}.recipe-coach{display:flex;flex-direction:column;padding-top:1px}.recipe-coach h3{font:500 26px/1.3 'Space Grotesk';margin:14px 0}.recipe-coach>p{min-height:112px}.recipe-github{margin:20px 0}.recipe-coach .primary-button{margin-top:12px;padding:14px 17px}.recipe-reset{font-size:13px;color:#a5b9c7;align-self:center;margin:14px 0}.recipe-coach .analogy-limit{font-size:12px;line-height:1.8;color:#738ea3;margin-top:12px;min-height:0}.intro-check{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding:24px;border:1px solid #2c4540;background:#111e1c;border-radius:9px;margin-bottom:35px}.intro-check h3{font:500 20px/1.5 'Space Grotesk';margin:9px 0 0}.intro-check-options{display:flex;gap:10px;flex-wrap:wrap}.intro-check-options button{font-size:14px;padding:10px 12px;border:1px solid #3a5e50;border-radius:6px;background:#172a24;color:#c7ded6}#intro-check-feedback{font-size:14px;color:#9ebbae;line-height:1.7;margin:14px 0 0}#intro-check-feedback.correct{color:var(--mint)}.dictionary-heading h3,.intro-next h3{font:500 25px 'Space Grotesk';margin:9px 0 13px}.dictionary-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px;margin:23px 0 33px}.dictionary-grid details{border:1px solid #2c3f4e;background:#111b24;border-radius:6px;padding:0 17px}.dictionary-grid summary{font-size:16px;padding:15px 0;cursor:pointer;display:flex;justify-content:space-between;gap:13px;list-style:none}.dictionary-grid summary::-webkit-details-marker{display:none}.dictionary-grid summary span{color:var(--mint);font-size:20px;line-height:1}.dictionary-grid details[open] summary span{transform:rotate(45deg)}.dictionary-grid details strong{color:var(--mint);font-size:14px;font-weight:500}.dictionary-grid details p{font-size:16px;line-height:1.75;color:#a3b9c9;margin:9px 0 18px}.intro-next{display:flex;align-items:center;gap:35px;justify-content:space-between;border-top:1px solid var(--line);padding-top:25px}.intro-next .primary-button{width:220px;flex-shrink:0;margin:0}.lesson-analogy{display:grid;grid-template-columns:1fr 230px;gap:25px;padding:22px 25px;margin-bottom:20px;background:linear-gradient(120deg,#12211e,#101923)}.lesson-analogy h3{font:500 23px/1.3 'Space Grotesk';margin:7px 0 10px}.lesson-analogy p{font-size:16px;color:#a6bfc0;line-height:1.7;margin:0}.lesson-terms{display:flex;gap:8px;align-content:flex-start;flex-wrap:wrap;border-left:1px solid #31423e;padding-left:23px}.lesson-terms .section-kicker{width:100%;margin-bottom:2px;font-size:11px}.lesson-terms button{font-size:13px;padding:6px 9px;background:#183029;border:1px solid #34594b;border-radius:5px;color:#bedccc;display:flex;align-items:center;gap:9px}.lesson-terms button span{color:#77a58f}.step-explanation{border-left:2px solid #69baa0;padding:1px 0 1px 13px;margin:0 0 18px}.step-explanation .section-kicker{font-size:11px;letter-spacing:.5px}.step-explanation p{font-size:15px;color:#c0d2df;line-height:1.7;margin:8px 0}.step-explanation small{font-size:13px;color:#8faabb;line-height:1.65;display:block}.guide-panel h2{font-size:23px}.guide-panel>p{font-size:15px}.guide-steps{margin-top:3px}.lesson-feedback{display:flex;align-items:flex-start;gap:12px;border:1px solid #37614e;background:#10251c;border-radius:7px;padding:15px 20px;margin-top:20px}.lesson-feedback>span{color:var(--mint);font-size:18px}.lesson-feedback strong{font-size:14px;color:var(--mint);font-weight:500}.lesson-feedback p{font-size:16px;line-height:1.7;margin:3px 0 0;color:#b4cec3}.intro-dictionary{scroll-margin-top:20px}
@media(max-width:1050px){.intro-concepts{gap:16px}.intro-concepts h3{font-size:20px}.recipe-grid{gap:23px;padding:22px}.recipe-page{padding:20px 16px}.recipe-page h3{font-size:23px}.recipe-coach h3{font-size:22px}.lesson-analogy{grid-template-columns:1fr}.lesson-terms{padding-left:0;border-left:0;border-top:1px solid #31423e;padding-top:13px}.lesson-terms .section-kicker{width:auto;margin-right:8px;align-self:center}.guide-panel .step-explanation{grid-column:1;grid-row:4}.guide-panel .guide-steps{grid-row:2/6}.guide-panel .insight{grid-row:5}.intro-next{gap:20px}.intro-next .primary-button{width:175px}.recipe-grid{grid-template-columns:1fr}.recipe-coach>p{min-height:0}.recipe-coach .primary-button{margin-top:0}.intro-check{grid-template-columns:1fr;gap:15px}}
@media(max-width:650px){.main-nav{flex-wrap:wrap;overflow:visible;gap:6px}.main-nav button{flex:1 1 45%;font-size:13px}.beginner-welcome h2{font-size:30px}.beginner-welcome h2 br{display:none}.intro-concepts{grid-template-columns:1fr;gap:23px}.intro-concepts h3{font-size:23px}.recipe-demo .panel-head{flex-wrap:wrap;height:auto;min-height:64px;padding:12px 16px;gap:7px}.recipe-demo .repo-tag{font-size:10px}.recipe-grid{padding:19px;gap:27px}.recipe-page h3{font-size:25px}.recipe-coach h3{font-size:25px}.intro-check{padding:20px}.intro-check h3{font-size:22px}.intro-check-options{flex-direction:column}.intro-check-options button{text-align:left;font-size:15px}.dictionary-grid{grid-template-columns:1fr}.intro-next{align-items:stretch;flex-direction:column;gap:23px}.intro-next .primary-button{width:100%}.lesson-analogy{padding:21px}.lesson-analogy h3{font-size:23px}.lesson-terms .section-kicker{width:100%}.step-explanation p{font-size:16px}.guide-panel h2{font-size:26px}.guide-panel>p{font-size:16px}.terminal-panel .panel-title strong{font-size:12px}.terminal-panel .simulation-label{display:none}.recipe-grid .primary-button{font-size:15px}}
.guide-panel{display:flex;flex-direction:column}.guide-panel #next-action{margin-top:0;padding:14px 15px}.lesson-outline{margin-top:19px;border-top:1px solid #2d3f4a;padding-top:13px}.lesson-outline summary{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:#b4c8d7;cursor:pointer;list-style:none}.lesson-outline summary::-webkit-details-marker{display:none}.lesson-outline summary span{font-size:12px;color:#84a394}.lesson-outline summary:after{content:'+';color:var(--mint);font-size:20px;line-height:1}.lesson-outline[open] summary:after{content:'−'}.lesson-outline .guide-steps{margin-top:9px}.guide-panel .insight{margin-bottom:0}.lesson-outline summary:focus-visible,.dictionary-grid summary:focus-visible{outline:2px solid var(--mint);outline-offset:4px}
.terminal-help{font-size:14px;line-height:1.7;color:#95aebf;padding:16px 22px 0;margin:0;max-width:900px}@media(max-width:650px){.terminal-help{padding:14px 15px 0;font-size:14px}}
.recipe-ingredients{margin:8px 0 21px}.recipe-ingredients p{display:flex;justify-content:space-between;gap:15px;align-items:baseline;border-bottom:1px solid #345044;padding:11px 0;margin:0;font-size:16px}.recipe-ingredients p:last-child{border:0}.recipe-ingredients strong{font:500 14px/1.5 var(--mono);color:#d1e5da;text-align:right}.recipe-ingredients p:last-child strong{color:var(--mint);transition:color .2s}.intro-summary{padding:25px;margin-bottom:32px}.intro-summary table{width:100%;border-collapse:collapse;table-layout:fixed}.intro-summary caption{text-align:left;font:500 26px/1.4 'Space Grotesk';padding:8px 0 21px;color:#e8f2ed}.intro-summary th{text-align:left;font-size:13px;font-weight:500;color:#89ac9c;background:#132720;padding:13px 16px;border-bottom:1px solid #345b4a}.intro-summary th:last-child{width:25%}.intro-summary td{padding:15px 16px;border-bottom:1px solid #263a33;font-size:16px;line-height:1.7;color:#b7cbc3;overflow-wrap:anywhere;vertical-align:middle}.intro-summary tr:last-child td{border:0}.intro-summary tbody tr:hover{background:#13221d}.concept-pill{display:inline-block;border:1px solid #3f6c56;border-radius:5px;padding:5px 10px;background:#163427;color:var(--mint);font-size:14px;font-weight:500;text-align:left}.intro-summary>p{font-size:13px;color:#86a799;line-height:1.7;margin:14px 0 0}@media(max-width:650px){.intro-summary{padding:19px 13px}.intro-summary .section-kicker{padding:0 4px;letter-spacing:.6px;font-size:11px}.intro-summary caption{font-size:24px;padding:8px 4px 18px}.intro-summary th{padding:11px 8px;font-size:12px;line-height:1.6}.intro-summary th:last-child{width:34%}.intro-summary td{padding:13px 8px;font-size:15px;line-height:1.65}.concept-pill{padding:5px 7px;font-size:13px}.intro-summary>p{margin-left:4px;margin-right:4px}.recipe-ingredients strong{font-size:13px}.recipe-ingredients p{font-size:16px}}

.empty-history{min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px 22px;gap:13px}.empty-history h3{font:500 24px/1.4 'Space Grotesk';color:#e8f2ed;margin:0}.empty-history p{font-size:16px;line-height:1.7;max-width:470px;margin:0;color:#8fa9b9}.setup-status{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:10px}.setup-status span{border:1px solid #2d3a44;border-radius:5px;padding:8px 11px;color:#8194a3;font-size:14px;background:#101821;transition:color .3s,border-color .3s}.setup-status .ready{border-color:#38836e;color:var(--mint);background:#142b24}.lesson-analogy .lesson-start{grid-column:1/-1;border-left:2px solid #3c8c76;padding:10px 14px;background:#12211e;color:#aac2b8;margin:0;font-size:15px;line-height:1.7}.command-chips button{overflow-wrap:anywhere;text-align:left;max-width:100%}@media(max-width:650px){.empty-history{min-height:300px;padding:20px 12px}.empty-history h3{font-size:21px}.setup-status span{font-size:13px;padding:7px 8px}}

.lesson-quiz{padding:29px;margin:24px 0;scroll-margin-top:24px;border-color:#34594c;background:linear-gradient(130deg,#12201c,#101820)}.recap-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:24px}.recap-heading h2{font:500 27px/1.3 'Space Grotesk';margin:8px 0 10px;color:#e2f0e9;outline:0}.recap-heading p{font-size:16px;line-height:1.7;color:#98b3a8;margin:0}.recap-badge{white-space:nowrap;font:12px/1.6 var(--mono);padding:8px 11px;background:#1b332b;border:1px solid #3b6554;border-radius:5px;color:var(--mint)}.recap-progress{display:flex;gap:8px;margin:24px 0}.recap-progress span{height:3px;flex:1;background:#2a3c35;transition:background .25s}.recap-progress .current{background:#3c8b73}.recap-progress .answered{background:var(--mint)}.recap-question{font:500 23px/1.5 'Space Grotesk';margin:0 0 21px;color:#dbece3;max-width:none;width:100%}.recap-choices{display:grid;gap:11px}.recap-choices button{display:flex;gap:14px;align-items:center;text-align:left;width:100%;padding:15px 17px;border:1px solid #34463e;border-radius:7px;background:#111d19;color:#c1d6cc;font-size:16px;line-height:1.65;transition:border-color .2s,background .2s;min-height:65px}.recap-choices button:hover:not(:disabled){border-color:var(--mint);background:#19342a}.recap-choices button:focus-visible,.recap-footer button:focus-visible{outline:2px solid var(--mint);outline-offset:3px}.recap-letter{flex-shrink:0;width:29px;height:29px;display:grid;place-items:center;border:1px solid #496052;border-radius:5px;font:14px var(--mono);color:#99bda9}.recap-choices button:disabled{opacity:1;cursor:default}.recap-choices button.correct{border-color:#63bb92;background:#173c2a;color:#d6f3e3}.recap-choices button.incorrect{border-color:#b38c50;background:#31291d;color:#ead4ad}.recap-choice-mark{margin-left:auto;color:inherit;font-size:20px}.recap-feedback{margin:19px 0;min-height:46px;font-size:16px;line-height:1.75;color:#90b19f;padding:15px 18px;border-left:2px solid #365748;background:#13241c;border-radius:3px}.recap-feedback strong{font-weight:500;color:#d9eadf}.recap-feedback p{margin:6px 0 0}.recap-feedback.correct{border-color:var(--mint)}.recap-feedback.incorrect{border-color:#c99f62;color:#cbbd9e;background:#28251c}.recap-footer{display:flex;justify-content:space-between;align-items:center;gap:18px;border-top:1px solid #30473c;padding-top:20px}.recap-footer .primary-button{width:auto;min-width:195px;margin:0;gap:25px}.recap-skip,.recap-replay{color:#a2b6aa;font-size:14px;padding:10px 0}.recap-result{display:flex;align-items:center;gap:27px;padding:30px 0}.recap-score{font:500 63px/1.2 'Space Grotesk';color:var(--mint);white-space:nowrap}.recap-score small{font-size:24px;color:#89aa98}.recap-result h3{font:500 23px/1.4 'Space Grotesk';margin:0 0 11px;color:#d9eade}.recap-result p{font-size:16px;line-height:1.75;color:#a1bbab;margin:0;max-width:680px}@media(max-width:650px){.lesson-quiz{padding:21px 17px;scroll-margin-top:16px}.recap-heading{flex-direction:column;gap:15px}.recap-heading h2{font-size:25px}.recap-question{font-size:22px}.recap-choices button{padding:13px 12px;gap:11px}.recap-letter{width:25px;height:25px}.recap-feedback{padding:13px}.recap-footer{align-items:stretch;flex-direction:column-reverse;gap:12px}.recap-footer .primary-button{width:100%;min-width:0}.recap-result{align-items:flex-start;flex-direction:column;gap:14px;padding:24px 0}.recap-score{font-size:52px}}

/* Two deliberate learning paths: own workflow first, collaboration later. */
.path-nav-heading{display:flex;justify-content:space-between;gap:8px;margin:18px 10px 8px;color:#6d889c;font:9px/1.5 var(--mono);letter-spacing:.06em}.path-nav-heading.selected{color:var(--mint)}.path-nav-heading small{font:inherit;white-space:nowrap}.sidebar .nav-label{margin-bottom:0}.lesson-nav button{min-height:40px;padding-block:9px}.learning-paths{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0 32px}.learning-path-card{border:1px solid var(--line);border-radius:10px;background:#0e161e;padding:24px;display:flex;flex-direction:column;align-items:flex-start}.learning-path-card.solo{border-color:#63e9c35c;background:linear-gradient(140deg,#142b25,#0e161e 70%)}.learning-path-card.team{background:linear-gradient(140deg,#1b2031,#0e161e 70%)}.learning-path-card.team .section-kicker{color:#bba2fa}.learning-path-card h3{font-size:25px;margin:12px 0}.learning-path-card p{color:var(--muted);line-height:1.7;margin:0}.learning-path-card ol{color:#b6cad7;line-height:1.9;padding-left:20px;margin:16px 0 24px;flex:1}.learning-path-card button{width:100%;justify-content:space-between}.learning-path-card small{margin-top:12px;color:#6d889c;font:10px var(--mono)}.team-summary{border:1px solid var(--line);border-radius:9px;padding:20px;margin:18px 0 32px;color:#b6cad7}.team-summary summary{cursor:pointer;display:flex;justify-content:space-between;font-weight:600;color:#bba2fa}.team-summary table{width:100%;border-collapse:collapse;margin-top:20px;font-size:13px}.team-summary caption{text-align:left;font-size:20px;font-weight:600;color:#e5edf5;margin-bottom:16px}.team-summary th,.team-summary td{padding:14px;border-bottom:1px solid var(--line);text-align:left;line-height:1.7}.path-completion{padding:22px;background:#63e9c309;border:1px solid #63e9c340;border-radius:8px;margin:20px 0}.path-completion h3{margin:10px 0;font-size:20px}.path-completion p{color:var(--muted);line-height:1.7}.path-completion button{margin-top:10px}.lesson-quiz .recap-footer{flex-wrap:wrap}.lesson-quiz .recap-footer .primary-button{width:auto;max-width:100%}@media(max-width:700px){.learning-paths{grid-template-columns:1fr}.learning-path-card{padding:20px}.team-summary{padding:14px}.team-summary th,.team-summary td{padding:10px 6px}.workspace-tabs button{font-size:12px}.workspace-tabs .tab-badge{font-size:9px}.recap-footer .primary-button{font-size:12px}}

.sidebar{overflow-y:auto;scrollbar-width:thin;scrollbar-color:#334651 transparent}.sidebar>*,.sidebar-bottom{flex-shrink:0}@media(min-width:881px) and (max-height:900px){.sidebar{padding-top:24px}.sidebar .brand{margin-bottom:24px}.sidebar-line{margin:18px 12px}.main-nav{gap:3px}.main-nav button{padding:9px 12px}.lesson-nav{gap:2px}.lesson-nav button{padding-block:7px;min-height:36px}.path-nav-heading{margin-top:12px;margin-bottom:6px}.sidebar-bottom{padding-top:18px}.sidebar-bottom p{margin-bottom:8px}.sidebar .profile{display:none}}
@media(max-width:650px){.sidebar{overflow:visible}.lesson-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 8px;overflow:visible}.path-nav-heading{grid-column:1/-1;margin:12px 5px 4px;font-size:9px;white-space:nowrap}.lesson-nav button{min-width:0;min-height:32px;white-space:normal;font-size:12px;padding:5px;gap:7px}.lesson-nav button .number{flex-shrink:0}.lesson-quiz .recap-footer .primary-button{width:100%}}
/* Actual simulator file snapshots, with a visible comparison for every action. */
.file-workbench{margin:18px 20px 0;border:1px solid #2b3e49;background:#0b131b;border-radius:8px;overflow:hidden}.file-workbench-head{padding:16px 17px 12px;display:flex;align-items:center;justify-content:space-between;gap:12px}.file-workbench-head .section-kicker{font-size:9px;letter-spacing:1.2px}.file-workbench h3{margin:5px 0 0;font:500 14px var(--mono)}.file-workbench h3>span{color:var(--mint);margin-right:8px}.file-change-count{font:9px var(--mono);color:#8fa8b9;white-space:nowrap}.file-change-count b{color:#63e9c3}.file-change-count em{font-style:normal;color:#f59f9f;margin-left:5px}.file-copy-tabs{display:flex;border-bottom:1px solid #2b3e49;padding:0 13px;gap:14px}.file-copy-tabs button{padding:9px 3px;font-size:11px;color:#8299ac;border-bottom:2px solid transparent;display:flex;align-items:center;gap:6px}.file-copy-tabs button[aria-selected=true]{color:var(--mint);border-color:var(--mint)}.file-copy-tabs i{width:4px;height:4px;border-radius:50%;background:var(--mint)}.recipe-code-panes{display:grid;grid-template-columns:1fr 1fr}.recipe-code-panes>section{min-width:0}.recipe-code-panes>section+section{border-left:1px solid #263742}.recipe-code-label{min-height:49px;padding:10px 12px;background:#121e29;display:flex;flex-direction:column;gap:3px}.recipe-code-label strong{font:500 9px var(--mono);letter-spacing:.3px;color:#acbfd0}.recipe-code-label small{font:9px var(--mono);color:#738da2}.current-file .recipe-code-label{background:#10231e}.current-file .recipe-code-label strong{color:#a8dfcd}.recipe-code{padding:11px 0;min-height:100px}.recipe-code-line{display:flex;align-items:baseline;min-height:24px;font:10px/1.9 var(--mono);padding:1px 8px 1px 0;gap:6px}.recipe-code-line code{font:inherit;white-space:pre-wrap;overflow-wrap:anywhere;color:#b8cbd9;min-width:0}.recipe-line-number{width:25px;flex-shrink:0;text-align:right;color:#51697e;font-size:9px}.recipe-line-mark{width:8px;flex-shrink:0;color:#728797}.recipe-code-line.added{background:#63e9c314;box-shadow:inset 2px 0 #63e9c3;animation:recipe-line-reveal .65s ease-out}.recipe-code-line.added code,.recipe-code-line.added .recipe-line-mark{color:#80f1ce}.recipe-code-line.removed{background:#f59f9f12;box-shadow:inset 2px 0 #e48282}.recipe-code-line.removed code,.recipe-code-line.removed .recipe-line-mark{color:#f0a6a6}.recipe-file-empty{padding:8px 14px;font-size:12px;line-height:1.7;color:#6e879a;margin:0}.recipe-file-notice{border-top:1px solid #243642;display:flex;gap:9px;padding:11px 14px;margin:0;font-size:11px;line-height:1.7;color:#9cb9b3;background:#10211c}.recipe-file-notice>span{color:var(--mint);flex-shrink:0}.recipe-diff-key{display:flex;flex-wrap:wrap;gap:7px 15px;font-size:9px;color:#7d95a8;padding:10px 14px}.recipe-diff-key span{display:flex;align-items:center;gap:6px}.recipe-diff-key i{height:5px;width:5px;border-radius:50%}.recipe-diff-key .added{background:#63e9c3}.recipe-diff-key .removed{background:#e48282}.commit-file{border:1px solid #334a59;border-radius:7px;padding:15px;margin-top:20px}.commit-file strong{font:11px var(--mono);color:var(--mint)}.commit-file pre{white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.9 var(--mono);color:#b8cbd9;margin:12px 0 0}@keyframes recipe-line-reveal{from{background:#63e9c350;transform:translateX(5px)}to{background:#63e9c314;transform:translateX(0)}}@media(max-width:650px){.file-workbench{margin:14px 12px 0}.recipe-code-panes{grid-template-columns:1fr}.recipe-code-panes>section+section{border-left:0;border-top:1px solid #263742}.recipe-code-line{font-size:12px;min-height:25px}.recipe-code-label strong,.recipe-code-label small{font-size:10px}.file-workbench h3{font-size:14px}.file-copy-tabs{gap:16px}.file-copy-tabs button{font-size:12px}.recipe-file-notice{font-size:13px}.recipe-diff-key{font-size:11px}.file-workbench-head{padding:14px 12px}.recipe-code{min-height:65px}}
.file-workbench h3{font-size:15px}.recipe-code-line{font-size:12px;line-height:1.8}.recipe-code-label strong{font-size:10px}.recipe-code-label small{font-size:10px}.recipe-file-notice{font-size:12px}.recipe-diff-key{font-size:10px}
@media(max-width:650px){.recipe-code-panes>.current-file{grid-row:1;border-top:0;border-bottom:1px solid #263742}.recipe-code-panes>section:first-child{grid-row:2}.recipe-code-line{font-size:12px}}

/* A chronological branch graph: main stays on one lane across local and GitHub. */
.visual-panel .graph{flex:0 0 auto;height:auto;min-height:0;overflow:visible;background:none}
.graph:after{display:none}
.graph-flow-header{display:flex;justify-content:space-between;gap:16px;margin:12px 24px 0;font:11px var(--mono);letter-spacing:1px;color:#8097aa}
.graph-flow-header b{color:var(--mint);padding:0 5px;font-weight:400}
.graph .team-labels{position:static;margin:10px 24px 0;flex-wrap:wrap}
.graph-scroll{overflow-x:auto;overflow-y:hidden;scrollbar-width:thin;scrollbar-color:#39566a #101820;background-image:radial-gradient(#33475366 .75px,transparent .75px);background-size:18px 18px;padding:0 6px}
.graph-scroll svg{display:block;width:100%;max-width:600px;height:auto;margin:0 auto;overflow:hidden}
.graph-explanation{margin:0 22px 16px;padding:10px 13px;background:#101f26;border-left:2px solid #407f91;border-radius:0 5px 5px 0;color:#a8c0ce;font-size:14px;line-height:1.65}
.graph-lane text{letter-spacing:0}
.graph-head-marker{font-weight:500}
@media(max-width:650px){.graph-flow-header{margin:12px 16px 0;font-size:10px;letter-spacing:.5px}.graph .team-labels{margin:10px 16px 0}.graph-explanation{margin:0 14px 16px;font-size:14px}}

.graph-scroll-hint{display:none}@media(max-width:650px){.graph-scroll-hint{display:block;margin:0 16px 12px;color:#819aab;font-size:12px}}

/* Keep the command and its result beside the lesson, before the file and graph. */
.lab-grid{align-items:start}
.lab-grid>.terminal-panel{grid-column:1;grid-row:1;position:sticky;top:12px;z-index:3;margin:0;box-shadow:0 12px 30px #0004}
.lab-grid>.visual-panel{grid-column:1;grid-row:2}
.lab-grid>.guide-panel{grid-column:2;grid-row:1 / span 2}
.terminal-panel .panel-head{height:44px;min-height:44px;padding:0 18px}
.terminal-panel .terminal-help{padding:9px 18px 0;font-size:13px;line-height:1.5}
.terminal-step{padding:10px 18px 0}
.terminal-step-label{font:10px var(--mono);letter-spacing:.8px;color:#7f9cae;margin-bottom:6px}
.terminal-step-action{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 11px;border:1px solid #3b7964;border-radius:5px;background:#123028;text-align:left;color:var(--mint)}
.terminal-step-action code{font:12px/1.6 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere;min-width:0}
.terminal-step-action>span{font-size:13px}
.terminal-step-action b{font-size:12px;flex-shrink:0;font-weight:600}
.terminal-step-note{font-size:12px;color:#96aebf;line-height:1.55;margin:6px 0 0}
.terminal-panel #terminal-output{min-height:48px;max-height:84px;padding:8px 18px 0;font-size:12px;line-height:1.7}
.terminal-panel #terminal-form{padding:5px 18px 10px;gap:8px;font-size:11px}
.terminal-panel .prompt{font-size:11px}
.terminal-panel #command-input{font-size:12px;padding:5px 0}
.terminal-panel #terminal-form button{font-size:12px;padding:4px 8px;color:var(--mint)}
.terminal-tools{display:flex;gap:10px;align-items:center;padding:8px 18px;border-top:1px solid var(--line);flex-wrap:wrap}
.terminal-tools>button{font:11px var(--mono);color:#9eb3c4;border:1px solid #293d4c;border-radius:4px;padding:4px 7px;background:#14212b}
.terminal-more{flex:1;min-width:150px}
.terminal-more summary{cursor:pointer;font-size:12px;color:#91acbd}
.terminal-more[open]{flex-basis:100%}
.terminal-more .command-chips{border:0;padding:10px 0 2px;max-height:120px;overflow:auto}
.terminal-more .command-chips:before{display:none}
.terminal-more .command-chips button{font-size:11px}
.terminal-resolutions{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.terminal-resolutions button{font-size:12px;padding:6px 8px;border:1px solid #3b7964;border-radius:4px;background:#123028;color:var(--mint)}
.file-workbench.file-edited{animation:file-edit-flash .7s ease-out}
@keyframes file-edit-flash{from{border-color:var(--mint)}to{border-color:#2b3e49}}
@media(max-width:1050px){.lab-grid>.terminal-panel{grid-column:1;grid-row:1}.lab-grid>.guide-panel{grid-column:1;grid-row:2}.lab-grid>.visual-panel{grid-column:1;grid-row:3}}
@media(max-width:650px){.lab-grid>.terminal-panel{top:6px}.terminal-panel .terminal-help{font-size:12px;padding:8px 14px 0}.terminal-step{padding:9px 14px 0}.terminal-panel #terminal-output{padding-left:14px;padding-right:14px;max-height:68px;font-size:11px}.terminal-panel #terminal-form{padding-left:14px;padding-right:14px}.terminal-panel .prompt{display:none}.terminal-tools{padding:7px 14px}.terminal-step-action code{font-size:11px}.terminal-step-note{font-size:11px}.terminal-more .command-chips{max-height:90px}}
/* One viewport for practicing: swap views instead of stacking panels. */
.lab-active{overflow:hidden}
.lab-active .page{height:100dvh;display:flex;flex-direction:column;min-height:0}
.lab-active .topbar{height:48px;flex:none}
.lab-active main{flex:1;min-height:0;display:flex;flex-direction:column;padding:12px 24px 16px;overflow:hidden}
.lab-active .intro{flex:none;margin-bottom:10px;min-height:34px}
.lab-active .intro .eyebrow,.lab-active .intro>div>p{display:none}
.lab-active .intro h1{font-size:27px;margin:0;letter-spacing:-.7px}
.lab-active .intro .quiet-button{padding:6px 10px;font-size:12px}
.lab-active .workspace-tabs{flex:none;margin-bottom:10px;gap:22px}
.lab-active .workspace-tabs button{padding-bottom:8px;font-size:13px}
.lab-active #lab-view{flex:1;min-height:0;display:flex;flex-direction:column;gap:10px}
.lab-active footer,.lab-active .bottom-notes{display:none}
.lesson-context{position:relative;flex:none;z-index:5}
.lesson-context>summary{display:flex;justify-content:space-between;gap:16px;align-items:center;cursor:pointer;list-style:none;padding:9px 12px;background:#102019;border:1px solid #284839;border-radius:6px;font-size:13px;color:#b1cdc0}
.lesson-context>summary::-webkit-details-marker{display:none}
.lesson-context>summary>span:last-child{font-size:12px;color:var(--mint);white-space:nowrap}
.lesson-context[open]>summary{border-color:#4f9e7d}
.lesson-context .lesson-analogy{position:absolute;top:calc(100% + 6px);left:0;right:0;margin:0;max-height:65dvh;overflow:auto;box-shadow:0 16px 50px #0009}
.lab-active .lab-grid{flex:1;min-height:0;grid-template-columns:minmax(0,1fr) 320px;grid-template-rows:minmax(0,1fr);gap:14px;align-items:stretch}
.lab-console{grid-column:1;grid-row:1;display:flex;flex-direction:column;min-height:0;min-width:0}
.lab-console>.panel-head{height:46px;flex:none;padding:0 17px}
.lab-console .panel-title strong{font-size:14px}
.lab-console .repo-tag{font-size:10px}
.workspace-view-tabs,.guide-view-tabs{display:flex;gap:4px;flex:none;border-bottom:1px solid var(--line);padding:0 14px}
.workspace-view-tabs button,.guide-view-tabs button{padding:10px 12px;color:#8ea6b8;font-size:13px;border-bottom:2px solid transparent;white-space:nowrap}
.workspace-view-tabs button[aria-selected=true],.guide-view-tabs button[aria-selected=true]{color:var(--mint);border-color:var(--mint);background:#63e9c308}
.workspace-view-tabs button>span{font:10px var(--mono);background:#1b2b32;color:#90c4bb;padding:1px 5px;margin-left:4px;border-radius:4px}
.mobile-guide-tab{display:none}
.workspace-pane-host{flex:1;min-height:0;position:relative;display:flex;flex-direction:column}
.workspace-pane{flex:1;min-height:0;overflow:auto;scrollbar-width:thin;scrollbar-color:#345163 transparent}
#workspace-file{display:flex;flex-direction:column;padding:12px 14px}
#workspace-file .file-workbench{margin:0;flex:1;min-height:0;display:flex;flex-direction:column}
#workspace-file .file-workbench-head{padding:12px 14px 8px;flex:none}
#workspace-file .file-copy-tabs{flex:none}
#workspace-file .recipe-code-panes{flex:1;min-height:0;overflow:auto}
#workspace-file .recipe-code-label{min-height:41px;padding:8px 12px}
#workspace-file .recipe-code-line{min-height:21px;padding-top:0;padding-bottom:0;font-size:11px}
#workspace-file .recipe-file-notice{font-size:12px;padding:8px 12px;flex:none;line-height:1.5}
#workspace-file .recipe-diff-key{padding:7px 12px;flex:none}
#workspace-graph{display:flex;flex-direction:column;padding-bottom:8px}
#workspace-graph .graph-toolbar{padding:12px 18px 0;flex:none}
#workspace-graph .graph{height:auto;min-height:0;flex:1;display:flex;flex-direction:column;overflow:auto;background:none}
#workspace-graph .graph-flow-header{margin-top:10px;flex:none}
#workspace-graph .team-labels{flex:none}
#workspace-graph .graph-scroll{flex:1;min-height:130px;display:flex;align-items:center;overflow:auto}
#workspace-graph .graph-scroll svg{flex-shrink:0;max-height:100%;min-height:130px}
#workspace-graph .graph-explanation{flex:none;margin-bottom:8px;padding:8px 12px;font-size:12px;line-height:1.5}
#workspace-graph .graph-status{margin:3px 18px 10px;flex:none;font-size:11px}
#workspace-graph .file-zones{padding:0 14px 8px;flex:none;gap:7px}
#workspace-graph .file-zone{min-height:52px;padding:7px 9px}
#workspace-graph .zone-title{font-size:11px;margin-bottom:5px}
#workspace-graph .zone-file,#workspace-graph .zone-empty{font-size:10px}
#workspace-graph .visual-bottom{display:none}
#workspace-graph .conflict-editor{display:none}
#workspace-graph .empty-history{min-height:0;flex:1;padding:20px 18px;gap:10px}
#workspace-graph .empty-history h3{font-size:22px}
#workspace-graph .empty-history p{font-size:14px;line-height:1.5}
#workspace-graph .setup-status span{font-size:12px;padding:6px 8px}
#workspace-terminal{position:static;display:flex;flex-direction:column;border:0;border-radius:0;box-shadow:none;margin:0;padding:0}
#workspace-terminal .terminal-help{font-size:13px;padding:12px 18px 0;flex:none}
#workspace-terminal #terminal-output{flex:1;min-height:0;max-height:none;padding:12px 18px;font-size:13px;line-height:1.8}
#workspace-terminal #terminal-form{flex:none;border-top:1px solid var(--line);margin:0;padding:10px 18px}
#workspace-terminal .terminal-tools{flex:none}
.console-footer{flex:none;border-top:1px solid #315247;background:#10231e;padding:0 0 9px}
.console-footer .terminal-step{padding:9px 14px 0}
.console-footer .terminal-step-label{margin-bottom:5px;font-size:10px}
.console-footer .terminal-step-action{padding:7px 10px}
.console-footer .terminal-step-note{font-size:11px;margin-top:4px;line-height:1.4}
.console-result{font-size:12px;color:#9fc9b9;margin:7px 15px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.5}
.console-result.error{color:#f6ad85}
.lab-active .lab-grid>.guide-panel{grid-column:2;grid-row:1;display:flex;flex-direction:column;min-height:0;padding:18px;gap:0}
.guide-panel h2{flex:none;font-size:23px;margin:12px 0 6px}
.guide-panel>p{flex:none;font-size:14px;line-height:1.5;margin-bottom:13px}
.guide-view-tabs{padding:0;gap:0;justify-content:space-between}
.guide-view-tabs button{padding:8px 4px;font-size:12px}
.guide-scroll{flex:1;min-height:0;overflow:auto;padding-top:13px;scrollbar-width:thin;scrollbar-color:#345163 transparent}
.guide-view .step-explanation{margin-bottom:8px;padding-left:11px}
.guide-view .step-explanation p{font-size:14px;line-height:1.6;margin:7px 0}
.guide-view .step-explanation small{font-size:12px;line-height:1.5}
.guide-view .lesson-outline{margin:0;border:0;padding:0}
.guide-view .lesson-outline summary{display:none}
.guide-view .guide-steps{margin:0}
.guide-view .guide-step{padding:6px 0;gap:9px}
.guide-view .guide-step strong{font-size:12px;line-height:1.4}
.guide-view .guide-step small{font-size:11px;line-height:1.4}
.guide-view .guide-step:not(:last-child):after{top:33px;bottom:-1px}
.guide-view .insight{margin:0;padding:11px}
.guide-view .insight p,.guide-view .insight strong{font-size:13px}
.guide-view .lesson-feedback{margin:0 0 13px;padding:11px;gap:7px}
.guide-view .lesson-feedback p{font-size:13px;line-height:1.5}
.guide-controls{flex:none;padding-top:12px;border-top:1px solid var(--line);margin-top:10px}
.guide-controls .primary-button{font-size:13px;padding:10px 12px}
.guide-controls .guide-foot{font-size:11px;margin-top:9px}
#workspace-quiz .lesson-quiz{border:0;margin:0;padding:16px 18px;background:none}
#workspace-quiz .recap-heading h2{font-size:21px;margin:5px 0}
#workspace-quiz .recap-heading p{font-size:12px;margin:0}
#workspace-quiz .recap-badge{font-size:10px;padding:5px 7px}
#workspace-quiz .recap-progress{margin:14px 0}
#workspace-quiz .recap-question{font-size:16px;margin:10px 0 14px}
#workspace-quiz .recap-choices{gap:7px}
#workspace-quiz .recap-choices button{padding:9px 11px;font-size:13px}
#workspace-quiz .recap-feedback{margin-top:10px;padding:9px 11px;font-size:13px;line-height:1.5}
#workspace-quiz .recap-feedback p{font-size:13px;margin:4px 0 0}
#workspace-quiz .recap-footer{margin-top:12px;padding-top:10px}
#workspace-quiz .recap-footer .primary-button{font-size:12px;padding:9px 12px}
@media(max-width:900px){.lab-active .lab-grid{grid-template-columns:1fr}.mobile-guide-tab{display:block}.lab-console #workspace-guide{border:0;border-radius:0;padding:14px 18px;display:flex;flex-direction:column}.lab-console #workspace-guide .guide-controls{display:none}.lab-console #workspace-guide .guide-scroll{overflow:auto}.lab-console #workspace-guide .guide-view-tabs{justify-content:flex-start;gap:22px}.lab-console #workspace-guide .guide-steps{display:grid;grid-template-columns:1fr 1fr;gap:4px 18px}.lab-console #workspace-guide .guide-step:after{display:none}}
@media(max-width:650px){.lab-active .app-shell{height:100dvh;display:flex;flex-direction:column;overflow:hidden}.lab-active .sidebar{padding:8px 12px;flex:none}.lab-active .sidebar .brand{font-size:22px}.lab-active .sidebar .brand small{display:none}.lab-active .brand-icon{height:28px;width:28px;font-size:21px}.lab-active .main-nav{margin-top:7px;flex-wrap:nowrap;gap:3px}.lab-active .main-nav button{font-size:10px;padding:6px 4px;flex:1 1 auto}.lab-active .lesson-nav{margin-top:7px;padding-bottom:2px}.lab-active .lesson-nav button{font-size:11px}.lab-active .path-nav-heading{display:none}.lab-active .page{height:auto;flex:1;min-height:0;margin:0}.lab-active .topbar,.lab-active .intro{display:none}.lab-active main{padding:8px 10px 10px}.lab-active .workspace-tabs{margin-bottom:7px}.lab-active .workspace-tabs button{font-size:12px;padding-bottom:7px}.lesson-context>summary{padding:6px 9px;font-size:11px;gap:5px}.lesson-context>summary>span:last-child{font-size:10px;white-space:normal;max-width:92px;text-align:right}.lesson-context .lesson-analogy{max-height:65dvh}.lab-console>.panel-head{height:38px;padding:0 12px}.lab-console .panel-title strong{font-size:12px}.lab-console .repo-tag{display:none}.workspace-view-tabs{padding:0 7px;gap:0;justify-content:space-between}.workspace-view-tabs button{font-size:12px;padding:8px 9px}.workspace-view-tabs button>span{display:none}.console-footer .terminal-step{padding:7px 10px 0}.console-footer .terminal-step-action code{font-size:11px}.console-footer .terminal-step-note{font-size:10px}.console-result{font-size:11px;margin:5px 11px 0}.console-footer .terminal-step-label{font-size:9px}.lab-active #lab-view{gap:7px}#workspace-file{padding:8px}#workspace-file .recipe-code-panes{grid-template-columns:1fr 1fr}#workspace-file .recipe-code-panes>section+section{border-top:0;border-left:1px solid #263742}#workspace-file .recipe-code-line{font-size:10px;min-height:23px;gap:3px}#workspace-file .recipe-line-number{width:15px;font-size:8px}#workspace-file .recipe-line-mark{width:5px}#workspace-file .recipe-code-label{padding:7px 6px}#workspace-file .recipe-code-label strong,#workspace-file .recipe-code-label small{font-size:9px}#workspace-file .recipe-file-notice{font-size:11px;padding:6px 9px}#workspace-file .recipe-diff-key{font-size:9px;padding:5px 8px}#workspace-graph .graph-toolbar{padding:8px 12px 0}#workspace-graph .local-label,#workspace-graph .graph-legend{font-size:10px}#workspace-graph .graph-explanation{font-size:11px;padding:6px 9px;margin:0 10px 6px}#workspace-graph .graph-scroll-hint{font-size:10px;margin:0 12px 5px}#workspace-graph .graph-status{font-size:10px;margin:3px 12px 6px}#workspace-graph .file-zones{padding:0 8px 6px}#workspace-graph .file-zone{padding:5px 6px;min-height:46px}#workspace-graph .zone-title{font-size:10px;gap:3px;margin-bottom:3px}#workspace-graph .zone-file,#workspace-graph .zone-empty{font-size:9px}.lab-console #workspace-guide{padding:12px}.lab-console #workspace-guide .guide-steps{grid-template-columns:1fr}.lab-console #workspace-guide h2{font-size:21px}.lab-console #workspace-guide>p{font-size:13px}#workspace-terminal .terminal-help{font-size:12px;padding:9px 12px 0}#workspace-terminal #terminal-output{font-size:11px;padding:10px 12px}#workspace-terminal #terminal-form{padding:8px 12px}#workspace-quiz .lesson-quiz{padding:12px}#workspace-quiz .recap-heading{display:block}#workspace-quiz .recap-badge{display:inline-block;margin-top:7px}#workspace-quiz .recap-question{font-size:14px}#workspace-quiz .recap-choices button{font-size:12px;padding:7px 8px}}
.lab-active main{width:100%;margin:0 auto}
#workspace-file .file-workbench-head{padding:7px 12px;min-height:34px;align-items:center}
#workspace-file .file-workbench-head .section-kicker{display:none}
#workspace-file .file-workbench h3{margin:0;font-size:12px}
#workspace-file .file-copy-tabs button{padding:6px 3px;font-size:11px}
#workspace-file .recipe-code-label{min-height:30px;padding:5px 9px;gap:1px}
#workspace-file .recipe-code{padding:4px 0;min-height:0}
#workspace-file .recipe-code-line{font-size:11px;line-height:1.5;min-height:18px}
#workspace-file .recipe-diff-key{padding:4px 10px;font-size:9px}
#workspace-file .recipe-file-notice{padding:6px 10px;font-size:11px}
#workspace-graph .graph-flow-header,#workspace-graph .file-zones,#workspace-graph .graph-status{display:none}
#workspace-graph .team-labels{margin:6px 18px 0}
.lab-active .guide-panel>p{font-size:13px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:9px}
.lab-active .guide-panel h2{font-size:22px;margin:9px 0 5px}
@media(max-width:650px){#workspace-file .recipe-code-line{font-size:10px;line-height:1.6;min-height:20px}#workspace-file .file-workbench-head{min-height:29px}#workspace-file .recipe-file-notice{font-size:10px}#workspace-file .recipe-code-label{padding-left:5px;padding-right:5px}}
#workspace-file .file-workbench{position:relative}
#workspace-file .file-workbench-head{position:absolute;right:11px;top:7px;padding:0;min-height:0;z-index:1}
#workspace-file .file-workbench-head>div{display:none}
#workspace-file .recipe-code-panes{overflow-x:hidden}
@media(max-width:650px){#workspace-file .file-workbench-head{display:none}}
.lab-grid[data-pane=quiz] .console-footer{display:none}
#workspace-quiz .recap-result{gap:13px;padding:12px 0;margin:10px 0}
#workspace-quiz .recap-score{font-size:34px;line-height:1.1}
#workspace-quiz .recap-result h3{font-size:16px;margin:0 0 5px}
#workspace-quiz .recap-result p{font-size:13px;line-height:1.5;margin:0}
#workspace-quiz .path-completion{margin-top:10px;padding:12px}
#workspace-quiz .path-completion h3{font-size:16px;margin:5px 0}
#workspace-quiz .path-completion p{font-size:13px;line-height:1.5;margin:5px 0 10px}
#workspace-quiz .path-completion .quiet-button{font-size:12px;padding:7px 10px}
#workspace-quiz{overflow:hidden}
#workspace-quiz .lesson-quiz{height:100%;display:flex;flex-direction:column;min-height:0;padding-bottom:10px}
#workspace-quiz .recap-content{flex:1;min-height:0;overflow:auto;scrollbar-width:thin;scrollbar-color:#345163 transparent}
#workspace-quiz .recap-footer{flex:none;margin-top:7px;padding-top:9px;background:#0f151d}
#workspace-quiz .recap-choices button{min-height:0}
.lab-active #toast{top:8px;bottom:auto;font-size:12px}
@media(max-width:650px){.lab-active #toast{left:50%;max-width:90vw}#workspace-quiz .recap-content .recap-question{line-height:1.45}#workspace-quiz .recap-footer .primary-button{max-width:170px}}

/* File/Terminal above a permanently visible commit graph. */
.lab-active .intro{display:none}
.lab-active .topbar{height:40px}
.lab-console>.panel-head{height:34px}
.workspace-view-tabs button{padding:7px 12px}
#workspace-graph{flex:none;height:clamp(170px,27dvh,250px);min-height:0;border-top:1px solid var(--line);padding-bottom:0;background:radial-gradient(ellipse at 70% 50%,#12203466,transparent 75%)}
#workspace-graph .graph-toolbar{padding:7px 14px 0;gap:8px}
#workspace-graph .history-count{background:#1b2b32;border-radius:4px;padding:1px 5px;color:#b1d9d0}
#workspace-graph .graph{overflow:hidden}
#workspace-graph .graph-scroll{min-height:0;overflow-x:auto;overflow-y:hidden;align-items:center}
#workspace-graph .graph-scroll svg{min-height:0;height:100%;width:auto;max-width:none;margin:0 auto;min-width:0}
#workspace-graph .graph-explanation{font-size:10px;line-height:1.35;margin:0 12px 5px;padding:4px 7px}
#workspace-graph .team-labels{margin:4px 14px 0;font-size:9px}
#workspace-graph .graph-scroll-hint{margin:0 12px 3px;font-size:9px}
#workspace-graph .empty-history{gap:3px;padding:8px 14px;justify-content:center}
#workspace-graph .empty-history h3{font-size:17px;margin:0}
#workspace-graph .empty-history p{font-size:11px;margin:0;max-width:none}
#workspace-graph .empty-history .section-kicker{font-size:9px}
#workspace-graph .setup-status{margin-top:5px;gap:6px}
#workspace-graph .setup-status span{font-size:10px;padding:3px 5px}
.console-footer .terminal-step-label{margin-bottom:3px}
.console-footer .terminal-step-note{margin-top:3px}
.console-footer{padding-bottom:6px}
#workspace-terminal .terminal-help{font-size:11px;padding-top:6px}
#workspace-terminal #terminal-output{padding:7px 14px;font-size:12px;line-height:1.55}
#workspace-terminal #terminal-form{padding:6px 14px}
#workspace-terminal .terminal-tools{padding:5px 14px;font-size:11px}
@media(max-width:650px){#workspace-graph{height:170px}#workspace-graph .local-label,#workspace-graph .graph-legend{font-size:9px}#workspace-graph .graph-toolbar{padding:5px 10px 0}.lab-console>.panel-head{height:32px}.workspace-view-tabs button{padding:7px 10px}#workspace-graph .graph-explanation{font-size:9px}#workspace-graph .team-labels{gap:6px;margin-left:10px}#workspace-terminal #terminal-output{font-size:11px}}

.lab-console>.panel-head{display:none}
.workspace-view-tabs .graph-head-actions{margin-left:auto;display:flex;align-items:center;gap:8px}
.workspace-view-tabs .graph-head-actions button{padding:4px 8px;border:0}
.lab-active main{padding:6px 24px 10px}
.lab-active .workspace-tabs{margin-bottom:5px}
.lab-active .workspace-tabs button{padding-bottom:4px}
.lab-active #lab-view{gap:6px}
.lesson-context>summary{padding:6px 12px}
#workspace-graph{height:clamp(155px,23dvh,230px)}
#workspace-file{padding:7px 10px}
#workspace-file .recipe-file-notice{padding:4px 9px;font-size:10px}
#workspace-file .recipe-diff-key{padding:3px 9px}
@media(max-width:650px){.lab-active main{padding:6px 10px 10px}#workspace-graph{height:170px}.workspace-view-tabs .graph-head-actions{gap:0}.workspace-view-tabs .graph-head-actions button{padding:4px 5px}}

@media(min-width:651px) and (max-height:780px){.lab-active .topbar{display:none}#workspace-graph{height:205px}}

#workspace-graph .commit-node text:nth-of-type(2){display:none}

/* Give the timeline the space left after a compact editor/terminal. */
.lab-console .workspace-pane-host{flex:0 1 280px;min-height:160px}
.lab-console #workspace-graph{flex:1;min-height:200px;height:auto}
#workspace-graph .graph-scroll svg{width:100%;height:100%;max-height:320px;min-height:0}
.lab-grid[data-pane=quiz] .workspace-pane-host{flex:0 1 380px;min-height:160px}
.lab-grid[data-pane=quiz] #workspace-graph{flex:1;min-height:200px}
.workspace-view-tabs .lesson-overview-button{font-size:11px;color:#9fbcb4}
#workspace-file .recipe-code-panes{align-content:start}
/* A short, readable briefing before each practice. */
.lesson-preview-active .intro,.lesson-preview-active footer{display:none}
.lesson-preview-active .topbar{height:48px}
.lesson-preview-active main{padding-top:24px;padding-bottom:24px}
.lesson-preview{max-width:1100px;margin:auto}
.lesson-preview-heading h2{font:600 clamp(30px,3vw,45px)/1.15 'Space Grotesk',sans-serif;letter-spacing:-1px;margin:10px 0 12px}
.lesson-preview-heading>p{color:#a7bac8;max-width:800px;font-size:15px;line-height:1.65;margin:0 0 24px}
.lesson-preview-grid{display:grid;grid-template-columns:1.2fr 1fr;border:1px solid #2a403d;background:linear-gradient(125deg,#10231d,#0d1820 70%);border-radius:14px;overflow:hidden}
.preview-goals{padding:25px 28px}
.preview-goals ol{list-style:none;padding:0;margin:16px 0 18px;display:grid;gap:15px}
.preview-goals li{display:flex;gap:15px;align-items:center}
.preview-goals li>span{height:32px;width:32px;flex:none;display:grid;place-items:center;border:1px solid #376657;border-radius:8px;color:var(--mint);font:11px var(--mono);background:#63e9c308}
.preview-goals li>p{margin:0;font-size:15px;line-height:1.5;color:#d0e1df}
.preview-outcome{margin:0;padding-top:15px;border-top:1px solid #2c443c;color:#99b4ad;font-size:13px;line-height:1.6}
.preview-setup{padding:25px 28px;border-left:1px solid #2a403d;position:relative;overflow:hidden}
.preview-setup>.section-kicker{position:relative;z-index:1}
.preview-save-count{display:flex;align-items:center;gap:12px;margin:12px 0 10px;position:relative}
.preview-save-count strong{font:500 43px/1 'Space Grotesk',sans-serif;color:var(--mint)}
.preview-save-count>span{font:11px var(--mono);color:#9fbbc9;max-width:130px}
.preview-location{color:#bba2fa;font:11px var(--mono)}
.preview-setup p{color:#b3c6d3;font-size:13px;line-height:1.65;position:relative;max-width:350px;margin:14px 0 10px}
.preview-setup small{font-size:11px;line-height:1.5;color:#748f9e;display:block;position:relative;max-width:310px}
.preview-radar{position:absolute;top:-20px;right:-30px;width:170px;height:170px;opacity:.25;display:grid;place-items:center}
.preview-radar i{position:absolute;border:1px solid #63e9c3;border-radius:50%;width:100%;height:100%;animation:preview-orbit 16s linear infinite}
.preview-radar i:nth-child(2){width:70%;height:70%;border-style:dashed;animation-direction:reverse}
.preview-radar i:nth-child(3){width:40%;height:40%}
.preview-radar>span{font-size:26px;color:var(--mint)}
@keyframes preview-orbit{to{transform:rotate(360deg)}}
.preview-terms{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:17px 0}
.preview-terms>span{color:#7f99a9;font-size:12px;margin-right:5px}
.preview-terms button{border:1px solid #2a404c;border-radius:6px;background:#0f1c25;padding:6px 10px;color:#bdcfdc;font-size:11px}
.preview-terms button span{color:var(--mint);margin-left:8px}
.preview-start{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-top:18px;border-top:1px solid var(--line)}
.preview-start strong{font:11px var(--mono);color:#a0c3bd}
.preview-start p{font-size:12px;line-height:1.5;color:#839dad;margin:6px 0 0}
.preview-start .primary-button{width:auto;min-width:170px;padding:12px 18px;justify-content:space-between}
@media(max-width:900px){.lab-console .workspace-pane-host{flex:0 1 290px;min-height:130px}.lab-console #workspace-graph{min-height:180px}.lab-grid[data-pane=guide] .workspace-pane-host{flex:1}.lab-grid[data-pane=guide] #workspace-graph{flex:0 0 210px}.lesson-preview-grid{grid-template-columns:1fr}.preview-setup{border-left:0;border-top:1px solid #2a403d}.preview-goals,.preview-setup{padding:20px}.preview-goals ol{gap:11px}.preview-setup p{max-width:none}.preview-save-count strong{font-size:32px}.lesson-preview-active main{padding:20px}}
@media(max-width:650px){.lab-console .workspace-pane-host{flex:1;min-height:100px}.lab-console #workspace-graph{flex:0 0 220px;min-height:0}.lab-grid[data-pane=quiz] #workspace-graph{flex:0 0 220px;min-height:0}.lesson-preview-heading h2{font-size:29px}.lesson-preview-heading>p{font-size:13px;margin-bottom:16px}.preview-goals li>p{font-size:13px}.preview-outcome{font-size:12px}.preview-setup p{font-size:12px}.preview-setup small{font-size:10px}.preview-goals,.preview-setup{padding:16px}.preview-start{align-items:stretch;flex-direction:column;gap:12px}.preview-start .primary-button{width:100%}.preview-terms{gap:6px}.lesson-preview-active .topbar{display:none}.workspace-view-tabs .graph-head-actions .lesson-overview-button{font-size:10px;padding:4px}.preview-radar{width:140px;height:140px}}
@media(max-height:740px) and (max-width:650px){.lab-console #workspace-graph{flex-basis:185px}}
@media(prefers-reduced-motion:reduce){.preview-radar i{animation:none}}.motion-paused .preview-radar i{animation:none}

@media(max-width:650px){
.lesson-preview-active{overflow:hidden}
.lesson-preview-active .app-shell{height:100dvh;display:flex;flex-direction:column;overflow:hidden}
.lesson-preview-active .sidebar{padding:8px 12px;flex:none}
.lesson-preview-active .sidebar .brand{font-size:22px;margin-bottom:4px}
.lesson-preview-active .brand-icon{width:28px;height:28px;font-size:21px}
.lesson-preview-active .brand small,.lesson-preview-active .nav-label,.lesson-preview-active .sidebar-line,.lesson-preview-active .lesson-nav,.lesson-preview-active .sidebar-bottom{display:none}
.lesson-preview-active .main-nav{margin-top:7px;gap:3px;flex-wrap:nowrap}
.lesson-preview-active .main-nav button{font-size:10px;padding:6px 4px;flex:1 1 auto}
.lesson-preview-active .page{height:auto;flex:1;min-height:0;margin:0;display:flex;flex-direction:column}
.lesson-preview-active main{flex:1;min-height:0;padding:12px;display:flex;overflow:hidden}
.lesson-preview{min-height:0;display:flex;flex-direction:column;flex:1;margin:0}
.lesson-preview-heading{flex:none}
.lesson-preview-heading h2{font-size:26px;margin:7px 0 9px}
.lesson-preview-heading>p{font-size:12px;line-height:1.5;margin-bottom:12px}
.lesson-preview-grid{flex:1;min-height:0;overflow:auto;align-content:start;scrollbar-width:thin;scrollbar-color:#345163 transparent}
.preview-goals,.preview-setup{padding:14px}
.preview-goals li>p{font-size:12px}
.preview-goals ol{margin:12px 0;gap:9px}
.preview-terms{flex:none;margin:9px 0;gap:5px}
.preview-terms button{padding:4px 7px;font-size:10px}
.preview-start{flex:none;padding-top:9px;gap:9px}
.preview-start p{font-size:10px;margin-top:4px}
.preview-start .primary-button{padding:10px 14px;font-size:12px}
}

@media(max-width:650px){.lesson-preview-grid{grid-auto-rows:max-content}}

/* Quiz content stays compact; spare room belongs to the graph. */
#workspace-quiz .lesson-quiz{padding-top:12px;padding-bottom:8px}
#workspace-quiz .recap-heading h2{font-size:18px}
#workspace-quiz .recap-progress{margin:10px 0}
#workspace-quiz .recap-question{margin:8px 0 10px;font-size:15px}
#workspace-quiz .recap-choices button{padding:7px 10px}
#workspace-quiz .recap-feedback{margin-top:8px;padding:7px 10px}
#workspace-quiz .recap-footer{margin-top:6px;padding-top:7px}
/* Commit text uses the diagram's natural size, regardless of panel size. */
#workspace-graph .graph-scroll{justify-content:center}
#workspace-graph .graph-scroll svg{flex:none;max-height:100%;max-width:none;margin:auto;min-height:0}
@media(max-width:650px){.lab-grid[data-pane=quiz] .workspace-pane-host{flex:1;min-height:0}#workspace-graph .graph-scroll{justify-content:flex-start}#workspace-quiz .recap-heading h2{font-size:17px}.lab-grid[data-pane=quiz] #workspace-graph{flex-basis:220px}}
@media(max-width:650px) and (max-height:740px){.lab-grid[data-pane=quiz] #workspace-graph{flex-basis:185px}}

#workspace-quiz .recap-heading h2{font-size:16px;margin:4px 0}
#workspace-quiz .recap-heading p{display:none}

#workspace-quiz .recap-letter{width:24px;height:24px;font-size:11px}
#workspace-quiz .recap-feedback{min-height:0;margin-bottom:0}

@media(max-width:650px){
#workspace-quiz .recap-heading{display:flex;flex-direction:row;align-items:center;gap:8px}
#workspace-quiz .recap-heading h2{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
#workspace-quiz .recap-badge{margin-top:0;font-size:9px;padding:4px 6px}
#workspace-quiz .recap-footer{flex-direction:row;align-items:center;gap:8px}
#workspace-quiz .recap-footer .primary-button{width:auto;min-width:0;max-width:180px;font-size:11px}
#workspace-quiz .recap-skip,#workspace-quiz .recap-replay{font-size:11px;padding:6px 0}
}