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@media(max-width:680px){.topbar{align-items:flex-start;flex-wrap:wrap;gap:14px}.top-right{flex-wrap:wrap;gap:10px}.actions{flex-wrap:wrap}.actions-right{flex-wrap:wrap}.privacy-actions>*{max-width:100%}}

.privacy-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 28px;background:#edf4e5;border-bottom:1px solid #d3dfc9;font-size:.79rem;line-height:1.55}.privacy-bar .text-button{flex-shrink:0;font-size:.79rem}.privacy-feedback:empty{display:none}.privacy-feedback{padding:12px;background:#f0f4ed;border:1px solid var(--line);border-radius:7px;font-size:.85rem}
@media(max-width:700px){.topbar{height:auto;min-height:65px;padding:14px 18px;gap:12px;flex-wrap:wrap}.top-right{flex-wrap:wrap}.privacy-bar{padding:10px 16px;align-items:flex-start;flex-wrap:wrap;gap:4px}.cursor-instructions .small-text{display:block}.file-picker{max-width:100%}.file-picker input{width:100%}}

#confirm-dialog{max-width:520px}#confirm-message{line-height:1.7}.confirm-actions{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:12px;margin-top:24px}#confirm-accept.danger-action{background:#9a382b;color:white}#confirm-accept.danger-action:hover{background:#7e2c22}

/* Flexible journeys and accessible learning tools. */
[hidden]{display:none!important}
:root{--editor-size:16px}
button,a,input,select,textarea{touch-action:manipulation}
:focus-visible{outline:3px solid #386db1;outline-offset:3px}
.topbar{height:auto;min-height:76px;gap:16px;flex-wrap:wrap;padding-top:14px;padding-bottom:14px}.top-right{flex-wrap:wrap}
.top-right .help-button{min-height:40px}.brand{white-space:nowrap}
.sidebar-tools{padding:0 10px 15px;border-bottom:1px solid var(--line)}
label{font-size:.87rem;line-height:1.6}label>input:not([type=checkbox]):not([type=radio]),label>select,label>textarea{display:block;width:100%;margin:6px 0 12px}
input[type=search],select,textarea:not(.code-input){border:1px solid #a6b9ac;border-radius:7px;padding:10px 12px;background:#fff;color:var(--ink);font:inherit;min-width:0;max-width:100%}
.check-choice{display:flex;align-items:center;gap:10px;margin:12px 0}.check-choice input{width:19px;height:19px;accent-color:var(--green);flex-shrink:0}
.search-count{font-size:.75rem;color:var(--muted);margin:7px 0}.sidebar-tools .check-choice{font-size:.76rem;margin:7px 0}
.stage-link.needs-skills{border-left:2px dashed #9aa997}.stage-status{display:block;font-size:.68rem;color:#626f61;margin-top:4px}.stage-link.demonstrated .stage-number{border:2px solid #3978a8;color:#235f8e}.stage-link.skipped .stage-number{border-style:dashed}
.stage-tools,.editor-tools{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:18px}.editor-tools{padding:9px 14px;margin:0;background:#edf3eb;border-bottom:1px solid var(--line);font-size:.76rem}.editor-tools label{display:flex;align-items:center;gap:7px;font-size:.75rem}.editor-tools select{display:inline-block;width:auto;margin:0;padding:5px}.editor-tools .check-choice{margin:0}.editor-tools .text-button{font-size:.75rem}
.stage-tools button{min-height:40px}.challenge-banner{background:#e7f0fa;border:1px solid #b5cce4;padding:14px 18px;border-radius:8px;margin:0 0 20px;font-size:.87rem}.challenge-banner strong{display:block;margin-bottom:5px}
.checkpoints{display:grid;gap:10px;margin-top:14px}.checkpoint-item{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:.8rem;border-top:1px solid var(--line);padding-top:10px}.checkpoint-item button{font-size:.76rem;flex-shrink:0}.checkpoint-item small{display:block;color:var(--muted)}
.wide-dialog{max-width:960px}.wide-dialog h2{font-size:1.6rem;margin-bottom:12px}.intro-copy{font-size:1.02rem!important;max-width:740px;color:var(--muted)}
fieldset{border:0;border-top:1px solid var(--line);padding:20px 0;margin:16px 0}legend{font-size:1rem;font-weight:700;padding-right:10px}
.choice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.choice-grid label{padding:16px;background:#f4f7f0;border:1px solid #cddbc9;border-radius:10px;cursor:pointer}.choice-grid input{accent-color:var(--green);margin-right:8px}.choice-grid strong{font-size:.9rem}.choice-grid span{display:block;margin-top:10px;color:var(--muted);font-size:.83rem}.choice-grid label:has(input:checked){background:#e5f1d9;border-color:#618854}
.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 24px;margin:20px 0}.settings-grid label{min-width:0}.resume-card{padding:20px;background:#edf5e5;border:1px solid #c9dbbb;border-radius:10px;margin:20px 0}.resume-card h3{margin:10px 0}.resume-card button{margin:0 10px 8px 0}.desk-sections{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin:30px 0}.challenge-list{display:grid;max-height:240px;overflow:auto}.challenge-list button{text-align:left}.review-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.review-grid button{text-align:left;line-height:1.6}.review-grid small{display:block;font-weight:400;color:var(--muted)}
.reference-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px;margin-top:18px}.reference-card{padding:18px;border:1px solid var(--line);border-radius:9px;background:#f8faf5;min-width:0}.reference-card h3{font-size:1rem}.reference-card pre,.wide-dialog pre{white-space:pre-wrap;overflow-wrap:anywhere;max-width:100%;background:#f1f5ed;padding:14px;border-radius:7px;font-size:.83rem}.reference-card button{text-align:left;margin-right:12px;line-height:1.6}
#playground-input{width:100%}.wide-dialog .editor-wrap{border-radius:9px;margin:18px 0}.trace-controls{display:flex;align-items:center;gap:14px;flex-wrap:wrap}#playground-status{font-size:.86rem;color:var(--muted)}#review-result,#playground-output{max-height:350px;overflow:auto}#review-solution:empty,#trace-state:empty,#playground-output:empty{display:none}
.highlight-editor{position:relative;min-width:0;flex:1;isolation:isolate;background:#142824}.highlight-editor .code-input,.code-highlight{font:var(--editor-size)/1.8 var(--mono)!important;letter-spacing:normal!important;tab-size:4;margin:0;border:0;border-radius:0;padding:18px 16px 18px 13px!important;white-space:pre!important;overflow-wrap:normal!important;word-break:normal!important}
.highlight-editor .code-input{position:relative;z-index:1;color:transparent;background:transparent;caret-color:#dcf3ce;display:block;width:100%;min-height:260px;-webkit-text-fill-color:transparent}.highlight-editor .code-input::selection{background:#42695499}.code-highlight{position:absolute;inset:0;width:100%;height:100%;max-height:none!important;color:#e2ecdf;background:transparent!important;pointer-events:none;overflow:hidden!important;z-index:0}.line-numbers{font-size:var(--editor-size);line-height:1.8;padding-top:18px}
.indent-guides{background-image:repeating-linear-gradient(90deg,transparent 0,transparent calc(4ch - 1px),#789e6d20 calc(4ch - 1px),#789e6d20 4ch);background-size:auto;background-position:13px 0;font:var(--editor-size)/1.8 var(--mono)}
.py-keyword{color:#cdb5f8}.py-string{color:#c7e9a0}.py-comment{color:#9fb4ae;font-style:italic}.py-number{color:#f2c28f}.py-builtin{color:#9ad6e1}.py-bracket{color:#e3d394}.bracket-match{background:#457468;box-shadow:inset 0 -2px #d4ffa9;border-radius:2px}.code-error{background:#994d3f99;text-decoration:underline;text-decoration-color:#ffc0a9}.jump-error{display:inline-block;margin-top:9px}.test-detail .source-line{background:#2c2621;color:#fff0df}
.focus-editor .sidebar,.focus-editor .learning-column,.focus-editor .workflow{display:none}.focus-editor .shell,.focus-editor .workspace{grid-template-columns:minmax(0,1fr)}.focus-editor main{max-width:1100px;margin:auto;width:100%}.focus-editor .code-input{min-height:55vh}
@media(max-width:700px){.choice-grid,.settings-grid,.desk-sections,.reference-grid,.review-grid{grid-template-columns:1fr}.wide-dialog{padding:20px}.topbar{gap:12px}.top-right{gap:4px}.top-right .help-button{font-size:.75rem;padding:7px 8px}.sidebar-tools{display:grid;grid-template-columns:1fr 1fr;gap:0 10px}.sidebar-tools>label:first-child{grid-column:1/-1}.sidebar-tools input[type=search]{margin-bottom:4px}.roadmap{max-height:210px}.stage-link{min-width:140px;max-width:210px}.stage-link .stage-title{display:block;font-size:.78rem}.stage-link .stage-status{display:block}.highlight-editor .code-input{min-height:280px}.stage-tools{gap:10px}.editor-tools{gap:8px}.checkpoint-item{align-items:flex-start;flex-wrap:wrap}.actions-right{gap:9px}.privacy-bar .text-button{white-space:normal}.workflow{font-size:.74rem}h1{overflow-wrap:anywhere}.wide-dialog pre{font-size:.8rem}}
@media(forced-colors:active){.highlight-editor .code-input{-webkit-text-fill-color:CanvasText;color:CanvasText}.code-highlight{display:none}.stage-link.active{outline:2px solid Highlight}.choice-grid label:has(input:checked){outline:2px solid Highlight}}

/* Explicit colors prevent the dark editor's text color leaking into controls. */
.editor-tools{background:#eaf2ed;color:#193330;padding:12px 14px;gap:12px;border-bottom:1px solid #9eb8aa}
.editor-tools label{color:#193330;font-size:.84rem;font-weight:650;min-height:42px}
.editor-tools select{background:#fff;color:#193330;border:1px solid #738e80;border-radius:6px;min-height:40px;padding:6px 10px;font-size:.86rem}
.editor-tools .check-choice{background:#fff;border:1px solid #738e80;border-radius:7px;padding:7px 10px;gap:9px;cursor:pointer}
.editor-tools .check-choice:has(input:checked){background:#e0eedb;border-color:#426b4a}
.editor-tools .check-choice input{accent-color:#22634c;width:20px;height:20px;margin:0}
.editor-tools .text-button{color:#194c3b;font-size:.83rem;min-height:40px}
.editor-help{margin:0;padding:9px 14px;color:#d2e6d8;background:#203d34;font-size:.73rem;line-height:1.7}
.chosen-file-note{color:#193330;background:#edf5e5;border:1px solid #b9ccb0;padding:10px 12px;border-radius:7px;overflow-wrap:anywhere;font-size:.85rem}
.file-picker input{min-height:44px;color:#193330;background:#fff;border:1px solid #9ab0a2;border-radius:7px;padding:5px}
.file-picker input::file-selector-button{background:#22634c;color:white;border-color:#22634c;font-weight:650}
.dialog-notice{position:sticky;top:0;z-index:4;background:#203d34;color:#fff;border:1px solid #729381;border-radius:8px;padding:12px 16px;box-shadow:0 4px 18px #14282425;font-size:.86rem;line-height:1.6}
.topic-filters{padding:14px 0 0;margin:14px 0 0;min-width:0}
.topic-filters legend{font-size:.83rem;color:#193330}
.topic-filter-options{display:grid;gap:6px}
.sidebar-tools .topic-filters .check-choice{padding:7px 9px;margin:0;border:1px solid #c5d6cb;border-radius:7px;background:white;color:#193330;font-size:.8rem;cursor:pointer;min-height:40px}
.topic-filters .check-choice:has(input:checked){background:#e8f1df;border-color:#7d9b70}
#topic-filter-help{font-size:.72rem;line-height:1.6;color:#52675b;margin:10px 0 4px}
#reset-topic-filters{font-size:.76rem;min-height:36px;text-align:left;color:#194c3b}
@media(max-width:700px){.sidebar-tools .topic-filters{grid-column:1/-1}.topic-filter-options{grid-template-columns:1fr 1fr}.editor-tools label{font-size:.8rem}.editor-tools .check-choice{padding:7px}.editor-help{font-size:.72rem}}

.line-numbers{color:#bed4c5}