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.stat{background:#f0f5f8;border-radius:11px;padding:10px 15px;font-size:.79rem}.stat-row .stat b{font-size:1.15rem;display:block}.no-break{white-space:nowrap}@media(min-width:1550px){.sidebar{width:293px}}@media(max-width:1200px){.sidebar{width:236px}.card-grid,.entry-grid,.stage-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.top-search{min-width:200px}.hero{grid-template-columns:1.5fr .7fr}.hero-art{min-width:180px}}@media(max-width:900px){.sidebar{position:fixed;right:0;z-index:13;transform:translateX(103%);transition:transform .22s;width:275px;box-shadow:0 0 90px #12203944}.sidebar.open{transform:translateX(0)}.mobile-brand{display:flex}.breadcrumbs{display:none}.top-search{min-width:auto;padding:7px 10px}.top-search span:nth-child(2),.top-search kbd{display:none}.topbar{padding:0 20px}.hero{grid-template-columns:1fr}.hero-art{display:none}.detail-layout{grid-template-columns:1fr}.aside-panel{display:grid;grid-template-columns:1fr 1fr;gap:16px}.settings-grid{grid-template-columns:1fr}}@media(max-width:620px){main{padding:23px 15px 46px}.hero{min-height:auto;padding:29px 23px}.hero h1{font-size:2rem}.hero p{font-size:.85rem}.hero-actions{gap:8px}.hero-actions .btn{padding:10px 12px}.entry-grid,.card-grid,.stage-grid,.metrics{grid-template-columns:1fr}.metrics{grid-template-columns:repeat(2,1fr)}.entry-card{min-height:175px}.page-heading{flex-direction:column}.page-heading h1{font-size:1.85rem}.detail-top{flex-direction:column}.lens-tabs button{font-size:.73rem;padding:11px 4px}.article-panel,.aside-panel,.lab-stage{padding:18px}.aside-panel{grid-template-columns:1fr}.lab-control-grid{grid-template-columns:1fr}.history-year{width:70px}.history-row:after{right:69px}.history-year:after{right:61px}.history-row{gap:13px}.history-row .timeline-card{padding:13px}.focus-context{flex-direction:column;align-items:start}.footer{flex-direction:column;padding:15px}.topbar{height:65px}.section-heading{align-items:start}.section-heading h2{font-size:1.5rem}.feature-strip{flex-direction:column;align-items:start}.card-grid{gap:10px}.detail-actions .btn{font-size:.75rem}.topbar{gap:6px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;scroll-behavior:auto!important;transition:none!important}}

.graph-edge.type-requires{stroke:#50aa99}.graph-edge.type-alternative_to{stroke:#958bba;stroke-dasharray:5,4}.graph-edge.type-extends{stroke:#c7a16f}

/* v0.5.1: original v0.4 experiments displayed within the knowledge atlas */
.related-lab-list{display:grid;gap:10px;margin-top:12px}
.related-lab-entry{border:1px solid var(--line,#e3e5ea);border-radius:12px;padding:14px;display:flex;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap}
.related-lab-entry p{margin:7px 0 0}

/* v0.6 bilingual navigation and logical-direction adjustments. */
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.top-actions{display:flex;align-items:center;gap:10px}
.locale-select{border:1px solid #d4e3e9;border-radius:10px;padding:8px 10px;background:#fff;color:#18324b;font-size:13px;min-width:100px;cursor:pointer}
.locale-select:focus-visible{outline:3px solid #18ab90;outline-offset:2px}
[dir=ltr] body{font-family:system-ui,'Segoe UI',Arial,sans-serif}
[dir=ltr] .top-search{text-align:left}
[dir=ltr] .topic-card .en{text-align:left}
[dir=ltr] .detail-top .ltr{text-align:left!important}
[dir=ltr] .nav-link.active::before{right:auto;left:1px}
[dir=ltr] .entry-card .arrow{left:auto;right:19px}
[dir=ltr] .article-event{border-right:0;border-left:2px solid #b8e1d8;padding:0 0 21px 17px;margin-right:0;margin-left:7px}
[dir=ltr] .article-event:before{right:auto;left:-6px}
[dir=ltr] .history-row:after{right:auto;left:83px}
[dir=ltr] .history-year{text-align:left}
[dir=ltr] .history-year:after{right:auto;left:75px}
[dir=ltr] .token-flow{direction:ltr}
[dir=ltr] .prob-percent{text-align:right}
[dir=ltr] #toast{left:auto;right:28px}
[dir=ltr] .knowledge-svg{direction:ltr}
[hidden]{display:none!important}
@media(max-width:900px){[dir=ltr] .sidebar{left:0;right:auto;transform:translateX(-103%)}[dir=ltr] .sidebar.open{transform:translateX(0)}}
@media(max-width:600px){.locale-select{min-width:85px;padding:7px 5px}.top-actions{gap:5px}}
/* Ensure language selector is reachable in the compact header. */
@media(max-width:600px){.top-actions .top-search{min-width:0;max-width:132px}.top-actions .top-search span:nth-child(2){display:none}}
/* v1.15: bounded inference tests — shared RTL/LTR structure */
.v115-boundary{border:1px solid #c9ddd9;border-radius:12px;padding:20px;background:#f7fbfa;min-width:0}
.v115-boundary h4{font-size:1.03rem;margin:.8rem 0}
.v115-boundary p{line-height:1.8;overflow-wrap:anywhere}
.v115-overclaim{border-inline-start:3px solid #ad7850;padding:9px 13px;background:#fff5e9;border-radius:5px}
.v115-slider-label{display:block;font-size:.88rem;font-weight:650;margin:13px 0 8px}
.v115-boundary input[type=range]{width:100%;accent-color:#087c69;cursor:pointer;min-height:36px}
.v115-boundary input:focus-visible{outline:3px solid #1d967c;outline-offset:4px}
.v115-result{padding:15px;background:white;border:1px solid #d5e5e1;border-radius:10px;margin:8px 0 15px}
.v115-number-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.v115-number-grid span{display:grid;gap:6px;min-width:0}
.v115-number-grid b{font-size:1.3rem;overflow-wrap:anywhere}
.v115-result>small{display:block;color:#536b79;font-size:.69rem;margin-top:10px;overflow-wrap:anywhere}
@media(max-width:430px){.v115-boundary{padding:14px}.v115-number-grid b{font-size:1.05rem}}

/* WKL-024P: contrast fixes verified numerically on reference light surfaces */
:root{--muted:#566a7e}
.btn.primary{background:#09695b;color:#fff}
.footer{color:#56697d}
.lab-card .lab-link{color:#075e51}
.wk-start-hero{background:#fff;border:1px solid var(--line);border-radius:19px;padding:clamp(20px,4vw,44px);margin-bottom:18px}
.wk-start-hero h1{max-width:790px;margin-bottom:12px;font-size:clamp(1.7rem,3vw,2.8rem)}
.wk-start-hero>p{max-width:800px;color:#465c70;font-size:1rem}
.wk-start-hero h2{font-size:1.2rem;margin:26px 0 12px}
.wk-start-eyebrow{font-weight:800;color:#075e51!important;font-size:.82rem!important}
.wk-start-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.wk-start-card{border:1px solid #c9d9e1;background:#fff;display:flex;flex-direction:column;gap:6px;border-radius:12px;padding:18px;min-height:157px;color:#24384c}
.wk-start-card>strong{font-size:1.13rem}
.wk-start-card>span:last-child{font-size:.85rem;line-height:1.7}
.wk-start-card:hover,.wk-start-card:focus-visible{border-color:#09695b;box-shadow:0 4px 20px #0e645719}
.wk-start-primary{background:#e4f4ef;border-color:#88b7ab}
.wk-start-icon{font-size:1.5rem;color:#075e51}
.wk-suggested{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-top:19px;border-top:1px solid var(--line);padding-top:18px}
.wk-suggested p{margin:2px 0 0;color:#566a7e;font-size:.85rem}
.wk-start-metrics{display:flex;gap:12px;flex-wrap:wrap;margin:10px 0 19px}
.wk-start-metrics>span{background:#fff;border:1px solid var(--line);border-radius:9px;padding:9px 12px;color:#40566c;font-size:.82rem}
.wk-start-metrics strong{color:#12364b}
.wk-start-catalogue{border:1px solid var(--line);border-radius:12px;background:white;padding:15px 18px}
.wk-start-catalogue summary{cursor:pointer;font-weight:750;font-size:1rem}
.wk-start-catalogue p,.wk-start-footnote{color:#566a7e;font-size:.85rem;margin:10px 0}
.wk-start-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:14px}
.wk-start-links a{border:1px solid var(--line);border-radius:7px;padding:9px 12px;color:#075e51;font-size:.85rem}
.wk-start-links a:hover,.wk-start-links a:focus-visible{background:#eaf8f3}
.related-lab-entry{flex-wrap:wrap}
.related-lab-entry>p{flex-basis:100%;margin:2px 0;color:#40566c}
@media(max-width:900px){.wk-start-grid{grid-template-columns:1fr}.wk-start-card{min-height:auto}.wk-start-links{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.wk-suggested{align-items:start;flex-direction:column}.wk-start-links{grid-template-columns:1fr}}

/* WKL-024R — legible first-party bilingual global-search result type. */
.search-result .search-type{display:block;font-size:.69rem;font-weight:800;color:#285e77;letter-spacing:.015em;margin-bottom:2px}
.search-result strong{display:block}

/* Connected lesson evidence navigation: optional sequence, not a progress score. */
.wk-evidence-path{border:1px solid #bfdbd6;border-radius:14px;padding:clamp(14px,2.6vw,22px);background:#f4faf8;margin:18px 0 25px}
.wk-evidence-path h2{font-size:1.2rem;margin:0 0 7px;color:#163e38}
.wk-evidence-path>p{margin:0 0 14px;font-size:.88rem;color:#3d5662}
.wk-evidence-steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;counter-reset:learning}
.wk-evidence-steps li{background:#fff;border:1px solid #d3e4df;border-radius:10px;padding:12px;min-width:0;display:flex;flex-direction:column;align-items:start;gap:6px}
.wk-evidence-steps strong{font-size:.86rem;color:#254b48}
.wk-evidence-link{color:#075e51;font-size:.86rem;font-weight:650;text-align:start;border:0;background:none;text-decoration:underline;text-underline-offset:3px;cursor:pointer;padding:0}
.wk-evidence-link:focus-visible{outline:3px solid #09695b;outline-offset:4px;border-radius:2px}
.wk-evidence-steps [data-learning-observation-state]{color:#465f65;font-size:.78rem;line-height:1.55}
#lesson-experiment-notebook,#lesson-experiment-observation,#lesson-experiment-boundary{scroll-margin-top:85px}
@media(max-width:650px){.wk-evidence-steps{grid-template-columns:1fr}}