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/* Repository actions stay available at every screen size. */
.app-header{gap:18px}
.breadcrumb{min-width:0;flex:0 1 auto}
.global-search{min-width:130px;flex:0 1 240px}
.github-links{display:flex;align-items:center;gap:7px;flex-shrink:0}
.github-links a{display:inline-flex;align-items:center;gap:5px;padding:6px 9px;border:1px solid var(--line);font:11px/1.5 "SFMono-Regular",Consolas,monospace;white-space:nowrap}
.github-links a:hover{border-color:#aebaa3;background:var(--soft);color:var(--green)}
.github-links a:first-child{border-color:#c7b995;color:#836229}
.github-links svg{width:14px;height:14px;flex-shrink:0}
@media(max-width:1280px){.app-header{gap:13px}.global-search{flex-basis:205px}.breadcrumb{max-width:31%}.github-links{gap:5px}}
@media(max-width:760px){
  html{scroll-padding-top:126px}
  .app-header{height:108px;padding:10px 18px;gap:7px 12px;flex-wrap:wrap;align-content:center}
  .menu-toggle{flex-shrink:0}
  .breadcrumb{display:block;flex:1;max-width:calc(100% - 245px);font-size:10px}
  .github-links{margin-left:auto;gap:5px}
  .github-links a{padding:6px 8px;font-size:10px}
  .github-links svg{width:13px;height:13px}
  .global-search{order:3;flex:1 0 100%;width:100%;max-width:none;min-width:0;margin:0}
  .global-search input{font-size:11px;padding:5px 0}
  .global-search>label>span{font-size:21px}
  .search-results{left:0;right:0;top:35px;width:100%;max-width:100%;max-height:65vh}
  .sidebar{top:108px}
  .prose section,.lab-panel{scroll-margin-top:126px}
}
@media(max-width:430px){.breadcrumb{display:none}.github-links a{padding:6px 10px;font-size:11px}.github-links{gap:7px}}

/* Video guide shares the reading platform's paper-and-ink typography. */
.video-heading{max-width:820px}
.video-overview{display:flex;gap:30px;align-items:center;flex-wrap:wrap;margin:26px 0 0;padding-top:20px;border-top:1px solid var(--line);font-size:12px}
.video-overview b{font:28px Georgia,serif;color:var(--red);margin-right:6px}
.video-overview>a{margin-left:auto;border-bottom:1px solid var(--green);color:var(--green)}
.video-policy{border-left:3px solid var(--red);background:var(--white);padding:25px 30px;margin:30px 0 45px;scroll-margin-top:0}
.video-policy h2{font-size:23px}
.video-policy p,.video-policy li{font-size:13px;line-height:1.9}
.video-policy ul{padding-left:20px}
.video-policy li+li{margin-top:9px}
.video-policy a{color:var(--green);text-decoration:underline;text-underline-offset:3px}
.video-policy details{border-top:1px solid var(--line);padding-top:14px;color:var(--muted)}
.video-policy summary{cursor:pointer;font-size:12px}
#video-catalog{scroll-margin-top:0}
.video-filters{display:flex;flex-wrap:wrap;gap:12px;align-items:end;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.video-filters label{display:flex;flex:1;flex-direction:column;gap:7px;min-width:140px;font-size:11px;color:var(--muted)}
.video-filters label:first-child{flex:1.7;min-width:200px}
.video-filters input,.video-filters select{width:100%;min-width:0;border:1px solid var(--line);background:var(--white);padding:9px 10px;color:var(--ink);font-size:12px;height:40px;border-radius:0}
.video-filters .button{height:40px;padding:8px 15px;font-size:12px}
.video-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:18px}
.video-card{border:1px solid var(--line);padding:25px;display:flex;flex-direction:column;background:var(--white);scroll-margin-top:0;min-width:0}
.video-card:target{outline:2px solid var(--red);outline-offset:3px}
.video-card-top{display:flex;gap:15px;align-items:center;margin-bottom:20px}
.video-number{font:30px/1 Georgia,serif;color:#a2a995;min-width:36px}
.video-meta{font:11px/1.7 "SFMono-Regular",Consolas,monospace;color:var(--muted);margin:0 0 5px;display:flex;gap:8px;flex-wrap:wrap}
.video-badge{display:inline-block;font-size:10px;border:1px solid var(--line);padding:3px 7px;color:var(--muted)}
.video-badge.official-pick{color:var(--green);background:var(--soft);border-color:#cbd4c2}
.video-card h2{font-size:21px;line-height:1.5;margin:0 0 8px}
.video-card h2 a:hover,.lesson-video h3 a:hover{color:var(--red)}
.video-author{font-size:11px;color:var(--muted);margin:0 0 14px}
.video-reason{font-size:13px;margin:0 0 16px;line-height:1.9}
.video-focus{padding:14px 16px;background:#eeeee5;font-size:12px;margin-bottom:16px}
.video-focus>b{font-size:10px;color:var(--green);letter-spacing:1px}
.video-focus p{margin:6px 0 0;line-height:1.9}
.video-chapters{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}
.video-chapters a{font-size:10px;border-bottom:1px solid #bcc7b4;padding:2px 0;margin-right:6px;color:var(--green)}
.video-access{font-size:10px;color:var(--muted);margin:auto 0 12px;line-height:1.8}
.video-actions{display:flex;justify-content:space-between;gap:14px;border-top:1px solid var(--line);padding-top:14px;font-size:12px;color:var(--green)}
.video-actions a:first-child{font-weight:600}
.video-empty{padding:30px;background:var(--soft)}
.lesson-video{border-top:1px solid var(--line);padding:20px 0}
.prose .lesson-video h3{font-size:17px;margin:7px 0 10px}
.prose .lesson-video p{font-size:13px;margin:8px 0}
.prose .lesson-video .small,.lesson-video>.text-link{font-size:11px}
.video-resource-banner{display:flex;gap:18px;align-items:center;background:var(--soft);padding:20px 24px;margin-bottom:28px;color:var(--green)}
.video-resource-banner>span{font:26px Georgia,serif}
.video-resource-banner>span:last-child{margin-left:auto}
.video-resource-banner small{display:block;font-size:11px;color:var(--muted);margin-top:5px}
@media(max-width:1050px){.video-grid{grid-template-columns:1fr}.video-card{padding:23px}.video-filters label{flex:1 1 40%}.video-filters label:first-child{flex:1 1 40%;min-width:0}}
@media(max-width:760px){.video-overview{gap:15px;font-size:11px}.video-overview>a{margin-left:0}.video-policy{padding:20px;margin:25px 0 35px}.video-policy h2{font-size:21px}.video-policy p,.video-policy li{font-size:12px}.video-card{padding:20px}.video-card h2{font-size:20px}.video-card,.video-policy,#video-catalog{scroll-margin-top:0}.video-filters{gap:12px}.video-filters label{min-width:0}.video-filters input,.video-filters select{font-size:12px}.video-filters .video-keywords{flex-basis:65%}.video-resource-banner{padding:18px;gap:12px}.video-resource-banner b{font-size:13px}}
@media print{.video-filters{display:none}.video-grid{display:block}.video-card{break-inside:avoid;margin:15px 0}.video-policy details{display:none}}