/* Additive navigation and small-screen safeguards. Browser QA is still required. */
.breadcrumbs ol{display:flex;gap:.45rem;flex-wrap:wrap;list-style:none;padding:0;margin:0}
.breadcrumbs li{margin:0;min-width:0;overflow-wrap:anywhere}
.breadcrumbs li+li::before{content:'/';margin-right:.45rem;color:var(--muted)}
.learning-start{padding:24px 28px;margin:24px 0;background:#fff;border:1px solid var(--line)}
.learning-start h2{margin-bottom:12px}.learning-start p{max-width:65ch}
.difficulty-note{display:block;font-size:13px;font-weight:400;margin-top:8px;line-height:1.8;color:var(--muted)}
.related-lessons ol{padding-left:1.4rem}.related-lessons li{padding-bottom:12px}.related-lessons li>a{font-weight:700}
.related-lessons li p{font-size:15px;margin-top:5px;color:var(--muted)}
.header-inner nav{flex-wrap:wrap}.header-inner nav a{min-height:44px;display:inline-flex;align-items:center}
.copy{min-height:36px;min-width:64px}.code-label{padding-right:90px}
pre{overscroll-behavior-x:contain}.table-wrap{max-width:100%;overscroll-behavior-x:contain}
.lesson-hero>div,.intro>div,.game-copy{min-width:0}h1,h2,h3,.facts dd,.meta{overflow-wrap:anywhere}
@media(max-width:650px){.header-inner nav{justify-content:flex-start;gap:6px 18px}.learning-start{padding:20px}.setup-page h1{font-size:clamp(1.65rem,7vw,2rem)}.button{max-width:100%;white-space:normal;text-align:center}.filter-row>*{max-width:100%}.breadcrumbs{line-height:1.9}.copy{min-height:40px}.code-label{min-height:50px;display:flex;align-items:center}.toc a{padding:6px 0}.curriculum-status b{white-space:normal}}

/* Approved longer site name: wrap the header before squeezing its contents. */
.header-inner{flex-wrap:wrap}
.brand{min-width:0;max-width:100%}.brand-icon{flex-shrink:0}.brand>span:last-child{min-width:0;overflow-wrap:anywhere}
.footer-inner>div{min-width:0;overflow-wrap:anywhere}
/* Primary genres and browser-local combined filters. */
.genre-badge{color:var(--green);background:#e8f2ee;padding:2px 8px;border:1px solid var(--line);border-radius:3px;font-weight:700}
.game-rule strong,.play-summary strong{display:block;font-size:14px;color:var(--green)}.game-rule span,.play-summary span{display:block}.game-rule,.play-summary{overflow-wrap:anywhere}
.filter-row{align-items:flex-end}.filter-field{display:flex;flex-direction:column;gap:.35rem;flex:1 1 18rem;min-width:0}.filter-genre{flex:0 1 15rem}.filter-field label{margin:0}
#lesson-query,#lesson-genre{width:100%;min-width:0;min-height:44px}#lesson-genre{padding:.8rem 1rem;border:1px solid var(--ink);border-radius:6px;background:#fff;color:var(--ink);font:inherit}#lesson-genre:focus-visible{outline:3px solid var(--green);outline-offset:3px}#lesson-clear{min-height:44px}
@media(max-width:650px){.filter-row{flex-direction:column;align-items:stretch}.filter-field,.filter-genre{flex:1 1 auto;width:100%}#lesson-clear{width:100%}}

.play-link{display:inline-flex;align-items:center;min-height:44px;margin-top:8px;font-weight:700;align-self:flex-start}.web-play{scroll-margin-top:24px}.game-frame iframe{max-width:100%}
/* Pyxel guide articles and their links (added 2026-10-07). */
.guide-meta{font-size:13px;color:var(--muted);margin-top:12px!important}
.guide-article .lead{margin:16px 0 26px}
.guide-figure{margin:24px 0;padding:14px;background:var(--navy)}
.guide-figure img{width:100%;max-width:560px;height:auto;margin:0 auto;image-rendering:pixelated}
.guide-figure figcaption{font-size:12px;color:#d8e3e5;padding-top:9px;line-height:1.65}
.guide-toc{border:1px solid var(--line);background:#fff;padding:16px 20px;margin:24px 0 36px;font-size:15px}
.guide-toc strong{display:block;font-size:12px;letter-spacing:.1em;color:var(--muted);margin-bottom:8px}
.guide-toc ol{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:4px 24px}
.guide-toc li{margin:0}.guide-toc a{display:inline-block;padding:3px 0}
.guide-article .comparison td,.guide-article .comparison th{min-width:7.5em}
.guide-article .comparison td code{white-space:normal;overflow-wrap:anywhere}
.guide-article .steps-list>li h3{margin-top:0}
.guide-grid{list-style:none;padding:0;margin:16px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.home-guides .guide-grid{grid-template-columns:repeat(5,minmax(0,1fr))}
@media(max-width:950px){.home-guides .guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.guide-grid li{margin:0}
.guide-grid a{display:flex;flex-direction:column;gap:6px;height:100%;padding:16px 18px;background:#fff;border:1px solid var(--line);text-decoration:none;color:var(--ink)}
.guide-grid a:hover{border-color:var(--green)}.guide-grid a:hover b{color:var(--green)}
.guide-kicker{font:700 12px var(--mono);letter-spacing:.08em;color:var(--green)}
.guide-grid b{font-size:17px;line-height:1.5}
.guide-grid span:last-child{font-size:14px;color:var(--muted);line-height:1.7}
.home-guides{margin:44px 0 0}
.home-guides .section-head{margin-top:0}
.checklist{list-style:none;padding:0}
.checklist li{position:relative;padding-left:1.8em}
.checklist li::before{content:"□";position:absolute;left:0;color:var(--green);font-weight:700}
.puzzle-list .lesson-kind{font-size:13px;color:var(--green);margin-top:2px}
.puzzle-list .lesson-learn{font-size:13px}
.guide-links{font-size:15px}
.scroll-hint{display:none}
@media(max-width:650px){.scroll-hint{display:block;font-size:13px;color:var(--muted);margin:16px 0 -8px!important}.guide-figure{padding:10px}.guide-toc{padding:14px 16px}.guide-grid,.home-guides .guide-grid{grid-template-columns:1fr}}