/* Practice Lab shares the site's typography, palette and navigation. */
.pl-shell,.pl-shell *{box-sizing:border-box}
.pl-shell{max-width:1280px;margin:0 auto;padding:0 28px 28px;font:400 15px/1.65 var(--bo-font-ui)}
.pl-shell [hidden]{display:none!important}
.pl-shell :is(h1,h2,h3,h4,p,figure,dl,dd){margin:0}
.pl-shell :is(section,article,aside,div,fieldset){min-width:0}
.pl-shell :is(button,input,select,textarea){font:inherit;color:inherit}
.pl-shell :is(button,a,summary,input,select){touch-action:manipulation}
.pl-shell :is(button,a,summary,input,select,textarea):focus-visible{outline:3px solid var(--bo-gold);outline-offset:4px}
.pl-shell [tabindex="-1"]{scroll-margin-top:calc(var(--bo-header-height) + 20px)}
.pl-shell a{color:var(--bo-text);text-decoration-color:var(--bo-brass);text-underline-offset:4px}
.pl-shell button{cursor:pointer}
.pl-shell button:disabled{opacity:.55;cursor:default}
.pl-shell :is(h1,h2,h3){font-family:var(--bo-font-heading);letter-spacing:-.025em;line-height:1.25}
.pl-eyebrow{font:600 10px/1.5 var(--bo-font-mono);text-transform:uppercase;letter-spacing:.13em;color:var(--bo-gold)}
.pl-mode-nav{display:flex;align-items:center;flex-wrap:wrap;gap:4px 22px;padding:14px 0;border-bottom:1px solid var(--bo-line);font-size:12px}
.pl-mode-nav>span{font-weight:600;margin-right:auto}
.pl-mode-nav a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none;color:var(--bo-muted)}
.pl-mode-nav [aria-current]{color:var(--bo-text);box-shadow:inset 0 -2px var(--bo-gold);font-weight:700}
.pl-intro{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:64px;align-items:center;padding:40px 0 32px}
.pl-intro h1{font-size:clamp(42px,5.4vw,66px);margin-top:9px;letter-spacing:-.045em}
.pl-intro h1 span{color:var(--bo-gold)}
.pl-lead{max-width:60ch;color:var(--bo-muted);font-size:16px;line-height:1.8;margin-top:14px!important}
.pl-weekly{border:1px solid var(--bo-line);border-left:3px solid var(--bo-brass);background:var(--bo-paper);border-radius:8px;padding:20px 22px}
.pl-weekly h2{font-size:21px;margin:7px 0}
.pl-weekly p:not(.pl-eyebrow){font-size:12px;color:var(--bo-muted);margin:8px 0 14px}
.pl-work-nav{display:flex;align-items:center;flex-wrap:wrap;gap:6px;border-bottom:1px solid var(--bo-line);padding-bottom:12px}
.pl-work-nav button,.pl-filters button{border:1px solid transparent;border-radius:6px;background:transparent;padding:10px 16px;min-height:46px;font-size:13px;font-weight:600}
.pl-work-nav button[aria-current],.pl-filters button[aria-pressed="true"]{background:var(--bo-primary);color:var(--bo-on-primary);border-color:var(--bo-primary)}
.pl-work-nav p{margin-left:auto;font-size:11px;color:var(--bo-muted);max-width:32ch;text-align:right;line-height:1.55}
.pl-work-nav p[data-unavailable="true"]{color:var(--bo-gold)}
.pl-section-head{display:flex;justify-content:space-between;gap:24px;align-items:center;margin:30px 0 20px}
.pl-section-head h2{font-size:clamp(25px,3vw,34px);margin-top:6px}
.pl-section-head p:not(.pl-eyebrow){font-size:13px;color:var(--bo-muted);max-width:72ch;margin-top:8px}
.pl-role{display:grid;gap:6px;font-size:11px;font-weight:600;min-width:180px}
.pl-shell select,.pl-shell input[type="text"],.pl-shell input[type="number"],.pl-shell input[type="date"],.pl-shell textarea{border:1px solid var(--bo-line);border-radius:5px;background:var(--bo-surface);padding:11px 12px;font-size:16px;line-height:1.5;min-height:48px;width:100%;min-width:0}
.pl-shell textarea{resize:vertical;min-height:130px}
.pl-path{background:var(--bo-paper);border:1px solid var(--bo-line);border-radius:10px;padding:22px 24px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.35fr);gap:28px}
.pl-path h3{font-size:22px;margin:5px 0 8px}
.pl-path p:not(.pl-eyebrow){font-size:13px;color:var(--bo-muted)}
.pl-path ol{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 16px;counter-reset:path}
.pl-path li{counter-increment:path;display:flex;align-items:center;gap:10px;font-size:12px}
.pl-path li::before{content:counter(path,decimal-leading-zero);font:500 11px var(--bo-font-mono);color:var(--bo-gold)}
.pl-path a{display:flex;align-items:center;min-height:44px;text-decoration:none;line-height:1.5}
.pl-path a:hover{text-decoration:underline}
.pl-filters{display:flex;gap:5px;flex-wrap:wrap;margin:24px 0 18px}
.pl-filters button{border-color:var(--bo-line);background:var(--bo-paper);font-size:12px;padding:9px 14px}
.pl-case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.pl-case-card{border:1px solid var(--bo-line);border-radius:10px;background:var(--bo-paper);overflow:hidden;display:flex;flex-direction:column}
.pl-card-top{padding:18px 20px;background:#0c273c;color:#fbf8f1;display:flex;align-items:center;gap:14px;border-bottom:1px solid #314b59;min-height:78px}
.pl-card-top svg{width:32px;height:32px;flex:none;color:#d4be88}
.pl-card-top .pl-eyebrow{color:#d4be88;font-size:9px}
.pl-card-top small{display:block;color:#bfccd5;font-size:10px;margin-top:3px}
.pl-card-body{padding:20px;display:flex;flex-direction:column;flex:1}
.pl-card-body h3{font-size:23px}
.pl-card-body>p{font-size:13px;color:var(--bo-muted);margin:12px 0 20px;line-height:1.7}
.pl-card-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:15px;border-top:1px solid var(--bo-line)}
.pl-card-bottom>span{font-size:10px;color:var(--bo-muted);line-height:1.5}
.pl-button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:10px 15px;border:1px solid var(--bo-line);border-radius:6px;background:var(--bo-paper);color:var(--bo-text);font-size:12px!important;font-weight:700!important;line-height:1.5;text-decoration:none;max-width:100%;text-align:center;white-space:normal}
.pl-button:hover{border-color:var(--bo-gold)}
.pl-primary{background:var(--bo-primary);color:var(--bo-on-primary)!important;border-color:var(--bo-primary)}
.pl-text-button{border:0;background:transparent;padding:10px 0;min-height:44px;font-size:12px!important;font-weight:600;color:var(--bo-gold)!important;text-decoration:underline;text-underline-offset:4px}
.pl-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.pl-notice{padding:15px 18px;border:1px solid var(--bo-line);border-left:3px solid var(--bo-brass);background:var(--bo-brass-soft);border-radius:6px;font-size:12px;line-height:1.7;margin:20px 0!important}
.pl-notice a,.pl-notice button{font-size:inherit}
.pl-case-head{display:flex;justify-content:space-between;align-items:start;gap:22px;margin:24px 0}
.pl-case-head h2{font-size:clamp(28px,3vw,39px);margin:7px 0 10px}
.pl-case-head p:not(.pl-eyebrow){max-width:70ch;color:var(--bo-muted);font-size:14px}
.pl-case-layout{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:24px;align-items:start}
.pl-panel{border:1px solid var(--bo-line);border-radius:10px;background:var(--bo-paper);overflow:hidden}
.pl-panel+.pl-panel{margin-top:20px}
.pl-panel-head,.pl-panel-body{padding:22px 24px}
.pl-panel-head{padding-bottom:18px}
.pl-panel-head h3{font-size:25px;margin-top:5px}
.pl-panel-head p:not(.pl-eyebrow){color:var(--bo-muted);font-size:13px;line-height:1.75;margin-top:10px}
.pl-panel-body>p{font-size:13px;line-height:1.8;color:var(--bo-muted)}
.pl-panel-body>p+p{margin-top:13px}
.pl-evidence{margin:0;padding:0;list-style:none}
.pl-evidence li{padding:15px 24px;border-top:1px solid var(--bo-line)}
.pl-evidence b{font-size:12px;display:block;margin-bottom:5px}
.pl-evidence p{font-size:13px;line-height:1.7}
.pl-evidence small{display:block;color:var(--bo-muted);font-size:11px;margin-top:5px;line-height:1.65}
.pl-visual{padding:20px 24px;background:#0c273c;color:#fbf8f1}
.pl-visual h4{font:600 11px/1.6 var(--bo-font-mono);color:#d4be88;text-transform:uppercase;letter-spacing:.06em;margin-bottom:18px}
.pl-visual figcaption{font-size:11px;color:#c1cdd5;margin-top:15px;line-height:1.65}
.pl-visual-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:5px 16px;margin:13px 0}
.pl-visual-row>span{font-size:12px}
.pl-visual-row>strong{font:500 13px/1.5 var(--bo-font-mono);max-width:24ch;text-align:right;overflow-wrap:anywhere}
.pl-visual-row>small{grid-column:1/-1;color:#c1cdd5;font-size:10px}
.pl-visual-track{grid-column:1/-1;height:9px;background:#294252;border-radius:3px;overflow:hidden}
.pl-visual-track i{display:block;background:#c7ab70;height:100%;min-width:0}
.pl-timeline-row{display:grid;grid-template-columns:25px minmax(0,1fr);gap:12px;position:relative;padding:0 0 17px}
.pl-timeline-row:last-of-type{padding-bottom:0}
.pl-timeline-row::before{content:'';position:absolute;top:25px;bottom:0;left:12px;border-left:1px solid #637687}
.pl-timeline-row:last-of-type::before{display:none}
.pl-timeline-row>span{height:25px;width:25px;border:1px solid #c7ab70;border-radius:50%;display:grid;place-items:center;font:500 10px var(--bo-font-mono);color:#d4be88}
.pl-timeline-row b{font-size:12px;display:block}
.pl-timeline-row p,.pl-timeline-row small{font-size:11px;color:#c1cdd5;line-height:1.65;display:block;margin-top:3px}
.pl-cross-section{width:100%;height:auto;max-height:170px;display:block;margin:0 auto 18px}
.pl-lesson details{border-top:1px solid var(--bo-line)}
.pl-lesson summary,.pl-details summary{min-height:48px;cursor:pointer;padding:14px 24px;font-size:13px;font-weight:700}
.pl-details{border:1px solid var(--bo-line);border-radius:7px;margin-top:18px;background:var(--bo-paper)}
.pl-details>div{padding:0 24px 22px}
.pl-details p{font-size:12px;color:var(--bo-muted);line-height:1.75}
.pl-details p+p{margin-top:12px}
.pl-source{display:block;padding:12px 0;border-bottom:1px solid var(--bo-line);font-size:12px;overflow-wrap:anywhere}
.pl-source:last-child{border-bottom:0}
.pl-source small{display:block;color:var(--bo-muted);font-size:10px;margin-top:3px}
.pl-question{margin:0;padding:19px 0;border:0;border-bottom:1px solid var(--bo-line);min-width:0}
.pl-question:first-child{padding-top:0}
.pl-question legend{padding:0 0 12px;font-size:13px;font-weight:700;line-height:1.7}
.pl-option{display:flex;align-items:flex-start;gap:10px;min-height:48px;border:1px solid var(--bo-line);background:var(--bo-surface);border-radius:6px;padding:12px;cursor:pointer;font-size:12px;line-height:1.65}
.pl-option+.pl-option{margin-top:8px}
.pl-option:has(input:checked){border-color:var(--bo-gold);background:var(--bo-brass-soft)}
.pl-option input{accent-color:var(--bo-gold);width:18px;height:18px;flex:none;margin:2px 0 0}
.pl-number-label{display:block;font-size:11px;color:var(--bo-muted)}
.pl-number-label input{margin:5px 0;max-width:220px;font-family:var(--bo-font-mono)!important}
.pl-question-progress{font:500 11px/1.6 var(--bo-font-mono);color:var(--bo-muted);padding-bottom:17px}
.pl-case-error,.pl-import-status{font-size:12px;line-height:1.7;color:var(--bo-gold);margin:13px 0!important}
.pl-debrief{margin-top:26px;border:1px solid var(--bo-brass);border-radius:10px;background:var(--bo-paper);padding:26px}
.pl-debrief-head{display:flex;justify-content:space-between;align-items:center;gap:25px}
.pl-debrief-head h3{font-size:30px;margin:7px 0}
.pl-debrief-head p:not(.pl-eyebrow){font-size:13px;color:var(--bo-muted)}
.pl-score{font:500 46px/1.1 var(--bo-font-mono);letter-spacing:-.05em;color:var(--bo-gold);text-align:right}
.pl-score small{display:block;font:400 10px/1.5 var(--bo-font-ui);letter-spacing:0;color:var(--bo-muted);margin-top:5px}
.pl-feedback-list{list-style:none;padding:0;margin:22px 0}
.pl-feedback-list li{border-top:1px solid var(--bo-line);padding:16px 0}
.pl-feedback-list strong{display:block;font-size:13px}
.pl-feedback-list p{font-size:12px;line-height:1.8;color:var(--bo-muted);margin-top:6px}
.pl-feedback-list b{font-weight:600;color:var(--bo-text)}
.pl-takeaways{background:var(--bo-brass-soft);border:1px solid var(--bo-line);border-radius:7px;padding:20px;margin:20px 0}
.pl-takeaways h4{font-size:14px}
.pl-takeaways ul{padding-left:18px;margin:10px 0 0;font-size:12px;line-height:1.9}
.pl-stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:20px 0}
.pl-stat{padding:18px;border:1px solid var(--bo-line);border-radius:8px;background:var(--bo-paper)}
.pl-stat strong{display:block;font:500 30px/1.3 var(--bo-font-mono);color:var(--bo-gold)}
.pl-stat span{display:block;font-size:11px;color:var(--bo-muted);margin-top:5px}
.pl-record-list{border:1px solid var(--bo-line);border-radius:9px;overflow:hidden;background:var(--bo-paper)}
.pl-record-row{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr) auto;gap:18px;align-items:center;padding:16px 20px;border-bottom:1px solid var(--bo-line)}
.pl-record-row:last-child{border-bottom:0}
.pl-record-row h3{font:700 14px/1.6 var(--bo-font-ui);letter-spacing:0}
.pl-record-row p{font-size:11px;color:var(--bo-muted);margin-top:5px}
.pl-record-score strong{font:500 20px var(--bo-font-mono);display:block}
.pl-record-score span{font-size:10px;color:var(--bo-muted)}
.pl-game-records{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.pl-game-records article{padding:22px;border:1px solid var(--bo-line);border-radius:9px;background:var(--bo-paper)}
.pl-game-records h3{font-size:23px;margin:7px 0}
.pl-game-records p,.pl-game-records li{font-size:12px;color:var(--bo-muted);line-height:1.8}
.pl-game-records ul{padding-left:18px;margin:14px 0}
.pl-team-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start}
.pl-field{display:grid;gap:7px;font-size:12px;font-weight:600;margin-bottom:16px}
.pl-field>small{font-size:11px;color:var(--bo-muted);font-weight:400}
.pl-assign-cases{margin:8px 0 18px;border:0;padding:0}
.pl-assign-cases legend{font-size:12px;font-weight:700;padding:0 0 10px}
.pl-assign-cases .pl-option{font-size:11px}
.pl-file-label{display:grid;gap:8px;min-height:48px;font-size:12px;font-weight:600;margin-bottom:15px}
.pl-file-label input{font-size:12px;max-width:100%;min-height:44px}
.pl-file-label input::file-selector-button{padding:10px;border:1px solid var(--bo-line);border-radius:5px;background:var(--bo-brass-soft);color:var(--bo-text);cursor:pointer;margin-right:8px;font:600 12px var(--bo-font-ui)}
.pl-team-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;list-style:none;padding:0;margin:20px 0}
.pl-team-steps li{font-size:12px;background:var(--bo-paper);border:1px solid var(--bo-line);border-radius:7px;padding:15px}
.pl-team-steps b{display:block;color:var(--bo-gold);font:600 10px/1.5 var(--bo-font-mono);margin-bottom:5px}
.pl-assignment{padding:21px 24px;border-top:1px solid var(--bo-line)}
.pl-assignment h4{font-size:15px;margin:5px 0}
.pl-assignment p{font-size:12px;color:var(--bo-muted);line-height:1.8;margin:7px 0}
.pl-assignment ol{margin:12px 0;padding-left:20px;font-size:12px}
.pl-assignment .pl-text-button{font-size:12px!important;text-align:left}
.pl-review-card{border:1px solid var(--bo-line);border-radius:8px;padding:22px;background:var(--bo-paper);margin-top:14px}
.pl-review-card h3{font-size:24px;margin:5px 0}
.pl-review-card p{font-size:12px;color:var(--bo-muted);margin:8px 0}
.pl-shell :is(.pl-assignment,.pl-review-card) :is(h3,h4,p){overflow-wrap:anywhere}
.pl-review-card .pl-review-top{display:flex;justify-content:space-between;gap:15px;align-items:start}
.pl-review-card dl{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:14px 0}
.pl-review-card dt{font-size:10px;color:var(--bo-muted)}
.pl-review-card dd{font:500 21px/1.7 var(--bo-font-mono)}
.pl-review-items{list-style:none;margin:0;padding:0}
.pl-review-items li{font-size:12px;border-top:1px solid var(--bo-line);padding:12px 0;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px}
.pl-review-items small{display:block;color:var(--bo-muted);margin-top:4px}
.pl-footer{display:flex;align-items:center;gap:12px;margin-top:36px;padding:22px 0;border-top:1px solid var(--bo-line);font-size:11px;color:var(--bo-muted)}
.pl-footer>a{margin-left:auto;min-height:44px;display:flex;align-items:center}
.pl-footer p{line-height:1.7}
.pl-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:1000px){.pl-case-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.pl-intro{gap:32px;grid-template-columns:minmax(0,1fr) 290px}.pl-path{grid-template-columns:1fr;gap:16px}.pl-game-records{grid-template-columns:1fr}.pl-case-layout{gap:18px}.pl-panel-head,.pl-panel-body{padding:20px}}
@media(max-width:740px){.pl-shell{padding:0 max(18px,env(safe-area-inset-left,0px)) 22px}.pl-intro{grid-template-columns:1fr;gap:24px;padding:28px 0}.pl-weekly{padding:18px 20px}.pl-mode-nav{gap:0 18px}.pl-mode-nav>span{flex-basis:100%;margin-bottom:4px}.pl-work-nav p{flex-basis:100%;max-width:none;text-align:left;margin:6px 0 0}.pl-work-nav button{flex:1;padding:10px 8px;font-size:12px}.pl-case-layout,.pl-team-grid{grid-template-columns:1fr}.pl-section-head{align-items:start;gap:18px}.pl-role{min-width:140px}.pl-case-head{flex-direction:column}.pl-case-head>.pl-actions{width:100%}.pl-stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.pl-record-row{grid-template-columns:minmax(0,1fr) auto;gap:12px}.pl-record-score{grid-row:2;grid-column:1}.pl-record-row>.pl-button{grid-column:2;grid-row:1/3}.pl-team-steps{grid-template-columns:1fr;gap:8px}.pl-team-steps li{padding:12px 16px}.pl-debrief{padding:21px}.pl-team-grid>.pl-panel+.pl-panel{margin-top:0}.pl-footer{flex-wrap:wrap}.pl-footer>a{flex-basis:100%;margin-left:48px}}
@media(max-width:480px){.pl-case-grid{grid-template-columns:1fr}.pl-intro h1{font-size:44px}.pl-lead{font-size:14px}.pl-section-head{flex-direction:column}.pl-role{width:100%}.pl-path{padding:20px}.pl-path ol{grid-template-columns:1fr;gap:2px}.pl-filters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.pl-filters button{font-size:11px;padding:10px}.pl-panel-head,.pl-panel-body{padding:20px 18px}.pl-evidence li{padding:14px 18px}.pl-visual{padding:20px 18px}.pl-actions>.pl-button{flex:1;min-width:130px}.pl-debrief-head{align-items:start}.pl-score{font-size:37px}.pl-debrief-head h3{font-size:25px}.pl-review-card{padding:18px}.pl-review-card dl{gap:8px}.pl-review-card dd{font-size:18px}.pl-review-top{flex-direction:column}.pl-assignment{padding:20px 18px}.pl-record-row{padding:15px}.pl-record-row>.pl-button{padding:9px 11px}.pl-visual-row{column-gap:10px}.pl-visual-row>strong{max-width:17ch}}
@media(prefers-reduced-motion:reduce){.pl-shell *{scroll-behavior:auto!important;transition:none!important}}
@media print{.pl-shell{--bo-text:#111;--bo-muted:#444;--bo-gold:#555;--bo-line:#999;--bo-paper:#fff;--bo-surface:#fff;--bo-brass-soft:#eee}.pl-visual svg text{fill:#111!important}}
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