/* Guided beginner case: one action, two clues and one short note. */
.wa-lab{--wa-blue:#246cb6;--wa-ink:#203c60;--wa-surface:#edf5ff;--wa-border:#bed8f3;--wa-paper:var(--md-default-bg-color,#fff);--wa-text:var(--md-default-fg-color,#263238);--wa-action:#246cb6;--wa-action-ink:#fff;margin:1.3rem 0;border:1px solid var(--wa-border);border-top:4px solid var(--wa-blue);border-radius:14px;background:var(--wa-paper);color:var(--wa-text);overflow:clip;font-size:.78rem;line-height:1.6;box-shadow:0 .4rem 1rem #173e6710}
.wa-lab *{box-sizing:border-box;min-width:0}.wa-lab [hidden]{display:none!important}.wa-lab p{margin:.5rem 0;line-height:1.6}.wa-lab :is(button,input,textarea){font:inherit}.wa-lab button{min-height:44px;padding:.5rem .75rem;border:1px solid var(--wa-border);border-radius:7px;background:var(--wa-paper);color:var(--wa-blue);font-size:.73rem;font-weight:650;cursor:pointer;line-height:1.45}.wa-lab button:hover:not(:disabled){background:var(--wa-surface)}.wa-lab button:disabled{opacity:.5;cursor:default}.wa-lab :is(button,input,textarea,a,summary):focus-visible{outline:3px solid var(--wa-blue);outline-offset:3px}.wa-lab [data-wa-primary]{min-width:11rem;background:var(--wa-action);color:var(--wa-action-ink);border-color:var(--wa-blue)}.wa-lab [data-wa-primary]:hover:not(:disabled){background:var(--wa-action);filter:brightness(.93)}
body .md-typeset .wa-lab :is(h3,h4){margin:0 0 .5rem!important;color:var(--wa-ink);font-weight:700;letter-spacing:normal;line-height:1.4}body .md-typeset .wa-lab h3{font-size:1.22rem!important;margin-top:.35rem!important}body .md-typeset .wa-lab h4{font-size:.98rem!important}.wa-brief{padding:1.1rem 1.2rem;background:var(--wa-surface);color:var(--wa-ink)}.wa-brief>span{display:block;color:var(--wa-blue);font-size:.6rem;font-weight:800;letter-spacing:.03em}.wa-lab>.wa-notice{margin:0;padding:.65rem 1.2rem;font-size:.67rem;color:var(--wa-text)}.wa-steps{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr));gap:.4rem;list-style:none!important;margin:.35rem 1.2rem .9rem!important;padding:0!important}.wa-steps li{display:flex;gap:.4rem;align-items:center;margin:0!important;padding:.5rem .25rem;border-bottom:3px solid var(--wa-border);font-size:.7rem}.wa-steps b{display:grid;place-items:center;flex:none;width:1.4rem;height:1.4rem;border-radius:50%;background:var(--wa-surface);color:var(--wa-blue)}.wa-steps [aria-current=step]{border-color:var(--wa-blue);font-weight:700}.wa-steps [data-done=true] b{background:var(--wa-action);color:var(--wa-action-ink)}
.wa-coach{padding:.8rem .9rem;margin:0 1.2rem;border:1px solid var(--wa-border);border-left:4px solid var(--wa-blue);border-radius:8px;background:var(--wa-surface);color:var(--wa-ink);scroll-margin-top:5rem}.wa-coach>small{color:var(--wa-blue);font-weight:700}.wa-coach>h4{margin-top:.25rem!important}.wa-coach>p{margin:.35rem 0;font-size:.78rem}.wa-workspace{padding:1rem 1.2rem}.wa-source-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.6rem;margin:0 0 .8rem}.wa-source{padding:.75rem;border:1px solid var(--wa-border);border-radius:8px}.wa-source>span{display:block;font-size:.64rem;color:var(--wa-blue);font-weight:700}.wa-source>strong{display:block;margin:.25rem 0}.wa-source p{font-size:.73rem}.wa-lab .wa-small{font-size:.7rem;color:inherit}.wa-lab code{white-space:normal;overflow-wrap:anywhere;word-break:normal;color:var(--wa-ink);font-size:.68rem}.wa-lab .wa-result{padding:.65rem .75rem;border-left:3px solid var(--wa-border);background:var(--wa-surface);color:var(--wa-ink);font-size:.73rem;overflow-wrap:anywhere}.wa-lab .wa-result[data-state=error]{border-left-color:#b44739}.wa-lab .wa-result[data-state=success]{border-left-color:#28815b}
.wa-lab label{display:block;margin:.5rem 0 .3rem;font-size:.78rem;font-weight:700}.wa-lab :is(input,textarea){width:100%;min-height:44px;padding:.6rem;border:1px solid var(--wa-border);border-radius:6px;background:var(--wa-paper);color:var(--wa-text)}.wa-lab textarea{resize:vertical}.wa-lab dl{margin:.6rem 0;font-size:.74rem}.wa-lab dt{margin-top:.45rem;font-weight:700}.wa-lab dd{margin:.1rem 0!important;overflow-wrap:anywhere}.wa-clue{padding:.85rem;border:1px solid var(--wa-border);border-radius:9px;scroll-margin-top:5rem}.wa-clue>span,.wa-clue-count{color:var(--wa-blue);font-weight:700;font-size:.72rem}.wa-clue>h4{margin-top:.3rem!important}.wa-meaning,.wa-success,.wa-facts{margin:.75rem 0;padding:.75rem .85rem;border:1px solid var(--wa-border);border-radius:8px;background:var(--wa-surface);color:var(--wa-ink);font-size:.76rem}.wa-meaning p,.wa-success p{margin:.35rem 0 0}.wa-facts ul{margin:.5rem 0 0;padding-left:1rem}.wa-facts li{margin:.45rem 0}.wa-finished{padding:.85rem;margin-top:.75rem;border:1px solid var(--wa-border);border-radius:8px;background:var(--wa-surface);color:var(--wa-ink)}.wa-finished>a{display:inline-block;margin-top:.6rem}.wa-actions{display:flex;align-items:center;flex-wrap:wrap;gap:.5rem}.wa-finished .wa-actions{margin:.6rem 0}
body .md-typeset .wa-lab details.wa-details{margin:.6rem 0 0;padding:.55rem .65rem;border:1px solid var(--wa-border);border-radius:6px;background:var(--wa-paper);color:var(--wa-text);box-shadow:none;font-size:.7rem}body .md-typeset .wa-lab details.wa-details>summary{display:flex;align-items:baseline;gap:.45rem;padding:0;margin:0;position:static;list-style:none;background:none;color:var(--wa-blue);font-size:.7rem;cursor:pointer;font-weight:650}body .md-typeset .wa-lab details.wa-details>summary::before{display:inline-block;position:static;flex:none;content:'';width:.32rem;height:.32rem;background:none;mask:none;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(-45deg)}body .md-typeset .wa-lab details.wa-details[open]>summary::before{transform:rotate(45deg)}body .md-typeset .wa-lab details.wa-details>summary::after{display:none}.wa-details summary::-webkit-details-marker{display:none}.wa-technical article{padding:.6rem 0;border-bottom:1px solid var(--wa-border)}.wa-technical dl{font-size:.68rem}.wa-technical code{display:block;overflow-wrap:anywhere;font-size:.64rem}.wa-lab .wa-hint{background:var(--wa-surface)!important}.wa-lab .wa-hint p{color:var(--wa-ink);font-size:.74rem}.wa-lab .wa-hint summary{color:var(--wa-blue)}
.wa-footer{position:static;margin-top:.85rem;padding:.85rem 0 .4rem;border-top:1px solid var(--wa-border);background:var(--wa-paper)}.wa-footer>.wa-actions{justify-content:flex-start}.wa-footer .wa-hint{max-width:100%}.wa-nav{display:flex;align-items:center;gap:.5rem;margin-top:.65rem}.wa-nav>span{font-size:.65rem;color:var(--wa-ink)}.wa-nav button{padding:.35rem .5rem;border-color:transparent;font-size:.67rem;font-weight:500}.wa-footer [data-wa-reset]{margin-left:auto}.wa-lab :is([data-wa-task],[data-wa-clue-title]):focus{outline:none}.wa-lab :is([data-wa-task],[data-wa-clue-title]):focus-visible{outline:2px solid var(--wa-blue);outline-offset:3px}
.wa-mission{display:flex;gap:.65rem;align-items:baseline;margin-top:.75rem;padding:.55rem .7rem;border:1px solid var(--wa-border);border-radius:6px;font-size:.7rem}.wa-mission>strong{flex:none;color:var(--wa-blue)}.wa-lab:not([data-wa-stage="0"]) .wa-mission{display:none}.wa-lab:not([data-wa-stage="0"]) .wa-brief{padding:.75rem 1.2rem}.wa-copy-route{display:flex;align-items:center;justify-content:center;gap:1rem;padding:.65rem;border-radius:7px;background:var(--wa-surface);color:var(--wa-ink);text-align:center;font-size:.67rem}.wa-copy-route>[aria-hidden]{font-size:1.4rem;color:var(--wa-blue)}.wa-source>small{display:inline-block;margin-top:.35rem;padding:.15rem .5rem;border:1px solid var(--wa-border);border-radius:20px;color:var(--wa-blue);font-size:.63rem;font-weight:650}.wa-source>small[data-done=true]{background:var(--wa-surface)}.wa-target-path strong{white-space:nowrap;color:var(--wa-blue)}.wa-target-path{padding:.5rem .6rem;border:1px dashed var(--wa-blue);border-radius:6px;background:var(--wa-surface);color:var(--wa-ink);font-family:var(--md-code-font-family,monospace);font-size:.7rem;transition:box-shadow .2s}.wa-clue[data-marked=true] .wa-target-path{border-style:solid;box-shadow:inset 4px 0 var(--wa-blue)}.wa-lab .wa-marked{padding:.5rem .6rem;background:var(--wa-surface);color:var(--wa-ink);border-left:4px solid var(--wa-blue);font-weight:650;font-size:.72rem}.wa-lab .wa-marked::before{content:'\2713';margin-right:.4rem}.wa-lab .wa-limit{margin-top:.65rem}.wa-linked{display:flex;flex-wrap:wrap;gap:.4rem;margin:.6rem 0}.wa-linked>span{padding:.2rem .5rem;border:1px solid var(--wa-border);border-radius:20px;font-size:.68rem}.wa-linked>span::before{content:'\2713';margin-right:.35rem}.wa-lab textarea{line-height:1.65;min-height:5rem}
[data-md-color-scheme=slate] .wa-lab{--wa-blue:#9dccff;--wa-ink:#e3effa;--wa-surface:#203b58;--wa-border:#456b92;--wa-action:#9dccff;--wa-action-ink:#102942}
@media(max-width:650px){.wa-brief,.wa-lab:not([data-wa-stage="0"]) .wa-brief{padding:.85rem}.wa-lab>.wa-notice{padding:.55rem .85rem}.wa-steps{margin:.3rem .85rem .8rem!important;gap:.2rem}.wa-steps li{flex-direction:column;text-align:center;padding:.4rem .1rem;font-size:.64rem}.wa-coach{margin:0 .85rem;padding:.7rem}.wa-workspace{padding:.85rem}.wa-source-list{grid-template-columns:1fr;gap:.35rem}.wa-source{padding:.5rem .65rem}.wa-source>strong{margin:0}.wa-source>small{margin-top:.2rem}.wa-source p{margin:.2rem 0}.wa-clue{padding:.7rem}.wa-footer{padding:.65rem 0 .2rem}.wa-lab [data-wa-primary]{min-width:0;width:100%;font-size:.76rem}.wa-nav{flex-wrap:wrap;gap:.3rem}.wa-nav>span{font-size:.61rem}.wa-nav button{font-size:.64rem}.wa-mission{display:block}.wa-mission>span{display:block;margin-top:.2rem}.wa-copy-route{gap:.65rem}body .md-typeset .wa-lab h3{font-size:1.08rem!important}}
@media(prefers-reduced-motion:reduce){.wa-lab *{scroll-behavior:auto!important;transition:none!important}}

.wa-lab .wa-choice-group{margin:.85rem 0;padding:0;border:0;min-width:0}.wa-choice-group legend{font-weight:700;font-size:.8rem;color:var(--wa-ink);margin-bottom:.4rem}.wa-lab .wa-option{display:grid;grid-template-columns:1.1rem minmax(0,1fr);align-items:start;gap:.5rem;margin:.4rem 0;padding:.65rem .7rem;border:1px solid var(--wa-border);border-radius:8px;font-weight:400;font-size:.73rem;cursor:pointer;background:var(--wa-paper)}.wa-lab .wa-option:has(input:checked){border-color:var(--wa-blue);background:var(--wa-surface);box-shadow:inset 3px 0 var(--wa-blue)}.wa-lab .wa-option input{width:1rem;height:1rem;min-height:0;padding:0;margin:.15rem 0 0;accent-color:var(--wa-blue);flex:none}.wa-option>span{display:block;min-width:0}.wa-option strong,.wa-option b{display:block;margin-bottom:.2rem}.wa-option b{font-size:.67rem;margin-top:.5rem}.wa-option small{display:block;font-size:.65rem;line-height:1.55}.wa-option code{display:block;overflow-wrap:anywhere;margin:.25rem 0;line-height:1.7}.wa-target{padding:.55rem .7rem;background:var(--wa-surface);border-left:3px solid var(--wa-blue);color:var(--wa-ink);font-size:.68rem}.wa-target strong,.wa-target code{display:block}.wa-record-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem}.wa-record-options .wa-option{margin:0}.wa-lab select{width:100%;font:inherit;font-size:.73rem;min-height:44px;padding:.5rem;border:1px solid var(--wa-border);border-radius:6px;background:var(--wa-paper);color:var(--wa-text)}.wa-lab select:focus-visible{outline:3px solid var(--wa-blue);outline-offset:3px}.wa-lab [data-wa-note-text]{white-space:pre-wrap}.wa-chevron{display:inline-block;width:.4rem;height:.4rem;border-top:2px solid currentColor;border-right:2px solid currentColor;transform:rotate(45deg);vertical-align:middle;margin:0 .25rem}.wa-chevron-back{transform:rotate(225deg)}.wa-lab :is(input[type=radio],input[type=checkbox]):disabled{cursor:default}.wa-copy-route .wa-chevron{flex:none}
@media(max-width:650px){.wa-record-options{grid-template-columns:1fr}.wa-option code{font-size:.62rem}}

.wa-filename{white-space:nowrap;font-weight:650}.wa-target code{line-height:1.7}.wa-record-option code{background:var(--wa-surface);padding:.35rem .4rem;border-radius:4px}

/* Compact case workspace: keep the evidence visible and help on demand. */
.wa-lab .wa-sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip-path:inset(50%)!important;white-space:nowrap!important;border:0!important}
.wa-lab .wa-brief,.wa-lab:not([data-wa-stage="0"]) .wa-brief{padding:12px 18px}
body .md-typeset .wa-lab .wa-brief h3{font-size:1.05rem!important;margin:3px 0 4px!important}
.wa-lab .wa-brief p{margin:0;font-size:.73rem;line-height:1.5}
body .md-typeset .wa-lab>.wa-notice{padding:7px 18px;margin:0;font-size:.64rem;line-height:1.4}
.wa-lab .wa-steps{margin:0 18px!important;gap:8px}
.wa-lab .wa-steps li{padding:4px 0;gap:5px;border-bottom-width:2px;flex-direction:row;text-align:left;font-size:.67rem;line-height:1.4}
.wa-lab .wa-steps b{width:20px;height:20px;font-size:12px}
.wa-lab .wa-coach{position:relative;margin:0 18px;padding:7px 0;border:0;border-radius:0;background:none;color:var(--wa-text)}
.wa-lab .wa-coach>p{margin:0;font-size:.73rem;line-height:1.5}
.wa-lab .wa-workspace{padding:3px 18px 14px}
.wa-lab .wa-source-list{gap:8px;margin-bottom:6px}
.wa-lab .wa-source{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 6px;padding:7px 9px;border-radius:5px;align-items:center}
.wa-lab .wa-source>strong{margin:0;font-size:.7rem;line-height:1.4}
.wa-lab .wa-source>p{grid-column:1;margin:0;font-size:.65rem;line-height:1.4}
.wa-lab .wa-source>small{grid-column:2;grid-row:1/3;margin:0;padding:2px 6px;font-size:.59rem}
.wa-lab .wa-copy-route{justify-content:flex-start;padding:3px 0;gap:10px;background:none;text-align:left;font-size:.64rem;line-height:1.4}
.wa-copy-route br{display:none}.wa-copy-route strong::before{content:' '}
.wa-lab .wa-choice-group{margin:8px 0}
.wa-lab .wa-choice-group legend{margin-bottom:4px;font-size:.74rem}
.wa-lab .wa-destination-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.wa-lab .wa-destination-options .wa-option{margin:0;padding:8px 9px;border-radius:5px}
.wa-lab .wa-option strong,.wa-lab .wa-option b{margin-bottom:2px}
.wa-lab .wa-option code{margin:2px 0;line-height:1.5}
.wa-lab .wa-result{margin:5px 0;padding:6px 9px;font-size:.7rem;line-height:1.5}
.wa-lab .wa-result:empty{display:none}
.wa-lab .wa-target{padding:6px 9px;font-size:.68rem}.wa-lab .wa-clue-count{margin:4px 0;font-size:.65rem}
.wa-lab .wa-record-option{padding:9px}.wa-lab .wa-record-option b{margin-top:5px}
.wa-lab :is(.wa-facts,.wa-success,.wa-meaning){margin:7px 0;padding:9px 10px;font-size:.72rem}
.wa-lab .wa-facts ul{margin:4px 0 0}.wa-lab .wa-facts li{margin:3px 0}
.wa-lab .wa-footer.wa-toolbar{position:relative;display:flex;align-items:center;flex-wrap:wrap;gap:3px 12px;padding:6px 0 0;margin:7px 0 0;border:0}
.wa-lab .wa-toolbar>.wa-actions{margin:0}
.wa-lab .wa-toolbar [data-wa-primary]{min-width:0;min-height:40px;padding:7px 15px;font-size:.7rem;width:auto}
.wa-lab .wa-toolbar>[data-wa-back],.wa-lab .wa-toolbar>[data-wa-reset]{min-height:40px;padding:6px 0;font-size:.67rem;border:0;border-radius:0;background:none}
.wa-lab .wa-toolbar>[data-wa-reset]{margin-left:auto}
body .md-typeset .wa-lab details.wa-inline-help{display:contents!important}
body .md-typeset .wa-lab details.wa-inline-help[open]::details-content{order:2;flex:0 0 100%}
body .md-typeset .wa-lab details.wa-inline-help>summary{display:inline-flex;align-items:center;gap:5px;min-height:40px;margin:0;padding:6px 0;font-size:.67rem;line-height:1.4}
body .md-typeset .wa-lab details.wa-inline-help>summary::before{width:5px;height:5px}
.wa-lab .wa-help-body{order:2;flex:0 0 100%;margin-top:3px;padding:10px 12px;border:1px solid var(--wa-border);border-radius:5px;background:var(--wa-surface);color:var(--wa-ink);font-size:.7rem}
.wa-lab .wa-help-body p{margin:5px 0;font-size:.7rem}.wa-lab .wa-help-body p:first-child{margin-top:0}
body .md-typeset .wa-lab .wa-comment{padding:0;border:0;background:none;margin:7px 0}
body .md-typeset .wa-lab .wa-comment>summary{min-height:32px;align-items:center;font-size:.67rem}
.wa-lab .wa-comment[open]{padding-bottom:5px}
@media(max-width:650px){
 .wa-lab .wa-brief,.wa-lab:not([data-wa-stage="0"]) .wa-brief{padding:10px 12px}
 body .md-typeset .wa-lab>.wa-notice{padding:6px 12px}
 .wa-lab .wa-steps{margin:0 12px!important;gap:5px}.wa-lab .wa-steps li{font-size:.61rem;align-items:flex-start}
 .wa-lab .wa-steps b{width:18px;height:18px;font-size:11px}
 .wa-lab .wa-coach{margin:0 12px;padding:6px 0}.wa-lab .wa-workspace{padding:3px 12px 12px}
 .wa-lab .wa-destination-options{grid-template-columns:1fr;gap:5px}.wa-lab .wa-source-list{gap:5px}
 .wa-lab .wa-toolbar{gap:2px 11px}.wa-lab .wa-toolbar>.wa-actions{flex-basis:100%}.wa-lab .wa-toolbar [data-wa-primary]{width:100%;min-height:44px}
 body .md-typeset .wa-lab details.wa-inline-help>summary,.wa-lab .wa-toolbar>[data-wa-back],.wa-lab .wa-toolbar>[data-wa-reset]{min-height:44px}
}