/* v203 — visual refinement of the existing v127 components. */
:root{--practice-ease:cubic-bezier(.22,1,.36,1);--practice-line:#d0d0d0}
html{scrollbar-gutter:stable}
html[data-site-theme="dark"]{--practice-line:#383838}
button,a,input,textarea{-webkit-tap-highlight-color:transparent}
.site-header{position:sticky;top:0}
.site-header-link-symbol,.workspace-nav-symbol{display:inline-block;transition:transform .4s var(--practice-ease),color .25s}
.site-header-link[aria-expanded="true"] .site-header-link-symbol,.workspace-nav button[aria-expanded="true"] .workspace-nav-symbol{transform:rotate(45deg)}
.site-header-link,.workspace-nav button{transition:background-color .28s,color .28s}
.site-header-dropdown.is-open{animation:practice-menu-in .42s var(--practice-ease) both}
.site-header-dropdown.is-open .site-header-menu-link{animation:practice-row-in .5s var(--practice-ease) both}
.site-header-menu-link:nth-child(2){animation-delay:40ms}.site-header-menu-link:nth-child(3){animation-delay:80ms}.site-header-menu-link:nth-child(4){animation-delay:120ms}.site-header-menu-link:nth-child(5){animation-delay:160ms}
.site-header-menu-link{transition:background-color .28s,color .28s}
.site-header-menu-link::after{transition:transform .35s var(--practice-ease)}
.site-header-menu-link:hover::after{transform:translateX(4px)}
.auth-entry{width:208px;transition:background-color .3s,border-color .3s}
.auth-entry-copy{height:20px;line-height:20px}
.auth-entry-login,.auth-entry-register{transition:opacity .3s,transform .4s var(--practice-ease)}
.auth-entry-arrow{transition:transform .4s var(--practice-ease)}
.auth-entry:hover .auth-entry-arrow{transform:translate(3px,-3px)}
.why-columns p{line-height:1.65;text-wrap:pretty}
.cards{height:760px;padding-top:54px;padding-bottom:30px;gap:16px}
.blind-card{transition:flex-grow .85s var(--practice-ease),background-color .3s;isolation:isolate}
.blind-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--acid);transform:scaleX(0);transform-origin:left;transition:transform .6s var(--practice-ease);pointer-events:none;z-index:5}
.blind-card.is-active::after{transform:scaleX(1)}
.card-number{top:32px;right:20px;transition:font-size .8s var(--practice-ease),color .3s}
.blind-card.is-active .card-number{font-size:160px}
.card-case-organizations{top:34px;left:22px;width:calc(100% - 195px);gap:10px;transition:opacity .32s,transform .45s var(--practice-ease)}
.card-case-logos{display:none}
.card-case-organizations-label{font-size:11px;line-height:1.4}
.card-case-organizations-list{font-size:12px;line-height:1.6;overflow-wrap:anywhere}
.blind-card.is-active .card-case-organizations{transition-delay:.2s}
.card-content{inset:164px 22px 24px;display:flex;flex-direction:column;gap:26px;transition:opacity .25s,transform .42s var(--practice-ease)}
.blind-card.is-active .card-content{transition-delay:.25s}
.card-title{position:static;white-space:normal;overflow:visible;font-size:clamp(27px,2.3vw,34px);line-height:1.08;letter-spacing:-.035em;text-wrap:balance}
.card-block{position:static;left:auto;width:100%;gap:12px}
.card-kicker{font-size:12px;line-height:1.4}
.card-body{font-size:14px;line-height:1.65;letter-spacing:-.01em;text-wrap:pretty}
.card-content .mono-link{position:static;left:auto;right:auto;bottom:auto;flex-shrink:0;width:100%;margin-top:auto;padding-top:16px;font-size:13px;border-color:var(--practice-line);transition:color .3s}
.card-content .mono-link>span{font-size:25px;transition:transform .4s var(--practice-ease)}
.blind-card:not(.is-active) .mono-link{pointer-events:none}
.closed-title{font-size:16px;line-height:1.25;white-space:normal;bottom:22px;left:20px;right:20px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.workspace-main{padding-top:64px}
.workspace-overview{min-height:320px;padding-bottom:50px;align-items:start}
.workspace-overview h1{font-size:clamp(54px,5.8vw,96px);line-height:.95;letter-spacing:-.055em;text-wrap:balance}
.workspace-overview-copy>p{margin-top:30px;max-width:640px;font-size:15px;line-height:1.7}
.workspace-overview-account{padding-top:18px;padding-bottom:8px}
.workspace-overview-account>strong{font-size:19px}.workspace-verified{margin-top:18px}
.workspace-metrics article{min-height:210px;padding:22px}
.workspace-metrics article>span:nth-child(2){margin-top:22px;font-size:15px}
.workspace-metrics strong{font-size:72px;line-height:.9;font-variant-numeric:tabular-nums}
.workspace-metrics strong small{font-size:23px}
.workspace-metrics .workspace-metric-word{font-size:clamp(36px,3.2vw,52px)}
.workspace-cases-section,.workspace-method{padding-top:70px}
.workspace-section-head{gap:36px;padding-bottom:26px;align-items:start}
.workspace-section-head h2{font-size:32px;line-height:1.08;text-wrap:balance}
.workspace-section-head p{font-size:15px;line-height:1.7}
.workspace-case{min-height:430px;padding:22px 18px 18px;transition:background-color .3s}
.workspace-case-index{font-size:48px}.workspace-case-status{font-size:11px;line-height:1.4}
.workspace-case h3{margin-top:38px;min-height:100px;font-size:clamp(25px,2.1vw,32px);line-height:1.06;letter-spacing:-.035em;overflow-wrap:normal;text-wrap:balance}
.workspace-case>p{margin-top:12px;margin-bottom:24px;font-size:13px;line-height:1.7;text-wrap:pretty}
.workspace-case-progress{flex-shrink:0}
.workspace-case-meta>span{font-size:12px}
.workspace-case-meta button{min-height:44px;padding:12px;font-size:12px;transition:background-color .3s,color .3s}
.workspace-case-meta button>span{display:inline-block;transition:transform .35s var(--practice-ease)}
.workspace-case-meta button:hover>span{transform:translate(3px,-3px)}
.workspace-case-progress span,.challenge-progress span{transition:width .6s var(--practice-ease)}
.workspace-account-panel{animation:practice-menu-in .4s var(--practice-ease) both}
.workspace-shell.practice-entering .workspace-overview{animation:practice-content-in .65s var(--practice-ease) both}
.workspace-shell.practice-entering .workspace-metrics{animation:practice-content-in .65s .08s var(--practice-ease) both}
.workspace-shell.practice-entering .workspace-cases-section{animation:practice-content-in .65s .14s var(--practice-ease) both}
#practice-panel-root .challenge-panel{width:min(740px,100vw);animation:practice-panel-in .62s var(--practice-ease) both;overscroll-behavior:contain;scrollbar-width:thin}
#practice-panel-root .challenge-backdrop{animation:practice-backdrop-in .35s both}
#practice-panel-root .challenge-shell.is-closing .challenge-panel{animation:practice-panel-out .3s cubic-bezier(.4,0,.8,.3) both;pointer-events:none}
#practice-panel-root .challenge-shell.is-closing .challenge-backdrop{animation:practice-backdrop-out .3s both;pointer-events:none}
#practice-panel-root .challenge-content{padding:42px 32px 38px}
#practice-panel-root .challenge-heading h2{margin-top:28px;font-size:clamp(34px,3.5vw,49px);line-height:1.06;letter-spacing:-.045em;text-wrap:balance}
#practice-panel-root .challenge-category,#practice-panel-root .challenge-file{font-size:11px;line-height:1.4}
#practice-panel-root .challenge-status-row{font-size:12px;line-height:1.5;margin-top:26px}
#practice-panel-root .challenge-section{padding:24px 0;gap:22px;grid-template-columns:112px minmax(0,1fr)}
#practice-panel-root .challenge-section>h3{font-size:12px;line-height:1.6;margin:0}
#practice-panel-root .challenge-section p{font-size:14px;line-height:1.75;overflow-wrap:anywhere}
#practice-panel-root .challenge-question{padding:26px 0}
#practice-panel-root .challenge-question h3{margin:20px 0 0;font-size:25px;line-height:1.2;letter-spacing:-.025em;text-wrap:pretty}
#practice-panel-root .question-label{font-size:11px;line-height:1.5}
#practice-panel-root .answer-row{margin-top:22px}
#practice-panel-root .answer-row input{height:48px;font-size:14px}
#practice-panel-root .answer-row>button{min-width:116px;font-size:13px;transition:background-color .25s,color .25s}
.practice-command{margin-top:20px;border-color:var(--practice-line)}
.practice-command code{padding:18px;font-size:12px;line-height:1.8}
.practice-command-controls{border-color:var(--practice-line)}
.practice-command-controls button{min-height:46px;transition:background-color .25s,color .25s}
.practice-command-controls button+button{border-color:var(--practice-line)}
.practice-terminal{margin-top:16px}
.practice-terminal-label{padding:12px 16px;font-size:11px;line-height:1.65}
.practice-terminal pre{padding:18px;line-height:1.85;min-height:132px}
.practice-terminal form{padding:12px 16px}
.practice-terminal input{min-height:32px;font-size:12px}
.practice-terminal button{min-width:40px;min-height:38px;transition:border-color .25s,background-color .25s}
.practice-terminal button:hover{border-color:var(--acid);background:#222}
.practice-terminal.is-updated pre{animation:practice-output-in .36s var(--practice-ease)}
.practice-item-brief{font-size:13px;line-height:1.75;margin:16px 0 20px}
.practice-native-button{min-height:46px;font-size:13px;transition:background-color .28s,color .28s,border-color .28s}
.practice-native-button>span{display:inline-block;transition:transform .35s var(--practice-ease)}
.practice-native-button:hover>span{transform:translate(3px,-3px)}
.practice-resources{gap:12px;font-size:12px;line-height:1.6}
.practice-resources a{padding-bottom:3px;transition:border-color .25s}
.question-assistance{display:flex;align-items:center;flex-wrap:wrap;gap:12px 24px}
#practice-hint{margin-right:0}
.question-assistance>button span{display:inline-block;transition:transform .3s var(--practice-ease)}
.question-assistance>button[aria-expanded="true"] span{transform:rotate(45deg)}
#practice-help{flex-basis:100%;margin:2px 0 0;padding:16px 18px;background:var(--card);border-left:2px solid var(--acid);font-size:13px;line-height:1.75;animation:practice-output-in .4s var(--practice-ease)}
#practice-feedback{font-size:13px;line-height:1.65;animation:practice-output-in .35s var(--practice-ease)}
.practice-note-label{font-size:14px;line-height:1.6;margin-top:20px}
#practice-notes{min-height:126px;padding:16px;line-height:1.75;transition:border-color .25s,background-color .25s}
.practice-note-caption{font-size:11px;line-height:1.6}
.practice-task-nav{padding-top:24px;gap:12px}
.practice-task-nav .practice-native-button{width:auto;flex:1;justify-content:center;font-size:12px}
#practice-back{background:transparent;color:var(--ink);border-color:var(--practice-line)}
#practice-back:hover{border-color:var(--ink)}
#practice-notice{left:auto;right:24px;bottom:22px;max-width:420px;width:calc(100vw - 48px);border-color:var(--practice-line);border-left:3px solid var(--acid);padding:16px 18px;font-size:13px;line-height:1.6;box-shadow:0 8px 24px #00000012;animation:practice-output-in .4s var(--practice-ease)}
.site-footer-head p,.site-principles-head p,.site-process-body,.site-principle-detail{line-height:1.7;text-wrap:pretty}
.source-logo-item img{transition:opacity .3s,transform .5s var(--practice-ease)}
.source-logo-item:hover img{transform:translateY(-3px)}
.source-logo-track{animation-duration:62s}
.contact-organization b{transition:transform .4s var(--practice-ease)}
.contact-organization:hover b{transform:translate(3px,-3px)}
@keyframes practice-panel-in{from{transform:translateX(100%)}to{transform:translateX(0)}}
@keyframes practice-panel-out{from{transform:translateX(0)}to{transform:translateX(100%)}}
@keyframes practice-backdrop-in{from{opacity:0}to{opacity:1}}
@keyframes practice-backdrop-out{from{opacity:1}to{opacity:0}}
@keyframes practice-menu-in{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
@keyframes practice-row-in{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
@keyframes practice-content-in{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@keyframes practice-output-in{from{opacity:.35;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:901px) and (max-width:1100px){.workspace-case-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.workspace-case h3{min-height:70px;font-size:28px}.workspace-case{min-height:360px}.card-body{font-size:13px}.card-content{gap:24px}.card-title{font-size:27px}}
@media(max-width:900px){
 .cards{height:auto;padding-top:0;padding-bottom:40px;gap:12px}
 .blind-card,.blind-card.is-active{height:108px;transition:height .72s var(--practice-ease),background-color .3s}
 .blind-card.is-active{height:710px}
 .card-number{top:25px;right:20px;font-size:48px}
 .blind-card.is-active .card-number,.blind-card:first-child.is-active .card-number,.blind-card:nth-child(4).is-active .card-number{font-size:128px}
 .card-case-organizations,.blind-card:first-child .card-case-organizations,.blind-card:nth-child(4) .card-case-organizations{top:25px;left:20px;width:calc(100% - 168px);gap:8px}
 .card-case-organizations-label{font-size:10px}.card-case-organizations-list,.blind-card:first-child .card-case-organizations-list,.blind-card:nth-child(4) .card-case-organizations-list{font-size:11px;line-height:1.65}
 .card-content{inset:160px 20px 24px;gap:28px}.card-title,.blind-card:nth-child(4) .card-title{font-size:31px;max-width:100%}
 .card-body{font-size:14px;line-height:1.75}.card-kicker{font-size:12px}
 .closed-title{bottom:25px;font-size:18px;max-width:calc(100% - 74px)}
 .workspace-main{padding-top:46px}.workspace-overview{min-height:auto;padding-bottom:40px;gap:30px}
 .workspace-overview h1{font-size:clamp(43px,6.7vw,67px);line-height:.98;margin-top:26px}
 .workspace-overview-copy>p{font-size:14px;margin-top:24px}
 .workspace-metrics article{min-height:190px;padding:18px}.workspace-metrics strong{font-size:58px}.workspace-metrics strong small{font-size:19px}
 .workspace-case h3{min-height:64px;font-size:28px;margin-top:28px}.workspace-case{min-height:335px}.workspace-case>p{font-size:14px}
 .workspace-cases-section,.workspace-method{padding-top:48px}.workspace-section-head h2{font-size:28px}.workspace-section-head p{font-size:14px}
 #practice-panel-root .challenge-content{padding:30px 22px 26px}
 #practice-panel-root .challenge-heading h2{font-size:35px;margin-top:24px}
 #practice-panel-root .challenge-question h3{font-size:23px}
 #practice-panel-root .challenge-section{grid-template-columns:100px minmax(0,1fr);gap:18px}
 .practice-task-nav{flex-wrap:nowrap}.practice-task-nav .practice-native-button{width:auto;gap:8px;padding:12px 8px;font-size:11px}
}
@media(max-width:560px){
 .workspace-section-head{grid-template-columns:1fr;gap:16px}.workspace-section-head p{justify-self:start}
 .workspace-case-grid{grid-template-columns:1fr}.workspace-case{min-height:300px;padding:22px 20px}.workspace-case h3{min-height:auto;font-size:30px;margin-top:30px}.workspace-case>p{max-width:450px;margin-bottom:30px}
 .workspace-metrics article{min-height:178px}.workspace-metrics article>span:nth-child(2){font-size:13px}.workspace-metrics strong{font-size:52px}
 #practice-panel-root .challenge-content{padding:28px 18px 26px}
 #practice-panel-root .challenge-heading h2{font-size:32px}.challenge-heading{column-gap:14px}
 #practice-panel-root .challenge-section{grid-template-columns:1fr;gap:12px;padding:22px 0}
 #practice-panel-root .challenge-section>h3{font-size:11px}.practice-command code{padding:15px;font-size:11px}
 .practice-command-controls button{font-size:11px;padding:10px 7px;min-height:46px}
 .practice-terminal-label{font-size:10px;padding:11px 14px}.practice-terminal pre{padding:16px 14px;font-size:11px}
 .practice-terminal form{padding:10px 14px}.practice-terminal input{font-size:11px}
 #practice-panel-root .answer-row{grid-template-columns:minmax(0,1fr) auto}
 #practice-panel-root .answer-row>button{min-width:91px;font-size:12px;padding:0 12px}
 #practice-panel-root .answer-row input{font-size:13px;padding:0 12px}
 #practice-notice{left:16px;right:16px;width:auto;bottom:16px;max-width:none}
 .auth-entry{width:100%}
}
@media(max-width:360px){.card-title,.blind-card:nth-child(4) .card-title{font-size:28px}.card-body{font-size:13px}.card-content{gap:24px}.blind-card.is-active{height:710px}.practice-task-nav{flex-wrap:wrap}.practice-task-nav .practice-native-button{flex-basis:100%}}
@media(prefers-reduced-motion:reduce){
 html{scroll-behavior:auto}
 *,*::before,*::after{animation-duration:.01ms!important;animation-delay:0ms!important;transition-duration:.01ms!important;transition-delay:0ms!important}
 .source-logo-track{animation:none!important;transform:none!important}.source-logo-viewport{overflow-x:auto}.source-logo-set.is-clone{display:none}
}
.display-title:focus,.workspace-overview h1:focus,#challenge-title:focus{outline:none}
@media(min-width:901px){.auth-entry{width:228px}}
@media(max-width:560px){.workspace-metrics article:last-child{grid-column:1/-1;min-height:152px}.workspace-metrics article:last-child>span:nth-child(2){margin-top:14px}.workspace-metrics .workspace-metric-word{font-size:38px;line-height:1}}