.atlas-page{max-width:1380px;margin:0 auto;padding:42px clamp(16px,4vw,56px) 64px}
.atlas-intro{max-width:920px;margin-bottom:36px}
.atlas-intro h1{font-size:clamp(2.4rem,5.7vw,4.8rem);line-height:1.04;color:var(--moss-dark)}
.lead{max-width:760px;font-size:1.15rem;color:var(--muted)}
.file-size{font-size:.85em;font-weight:400;margin-left:8px}
.study-tools,.viewer-heading,.viewer-controls,.reading-details{font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.study-tools{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:0 0 22px}
.study-tools label{display:block;font-size:.9rem;font-weight:700;margin-bottom:6px}
select,input,button{font:inherit}
select,input{width:100%;min-width:0;min-height:46px;border:1px solid #829285;border-radius:4px;background:#fff;padding:10px;color:var(--ink)}
button{min-height:44px;padding:9px 16px;border:1px solid var(--moss);border-radius:4px;background:var(--moss);color:#fff;font-weight:650;cursor:pointer}
button:hover:not(:disabled){background:var(--moss-dark)}
button:disabled{opacity:.45;cursor:default}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #ae7010;outline-offset:4px}
.search-panel{grid-column:1/-1;padding:16px 20px;background:var(--panel);border:1px solid var(--line);border-radius:4px}
.search-panel p{margin-bottom:8px;font-size:.9rem;color:var(--muted)}
.search-panel ul{list-style:none;margin:0;padding:0;max-height:270px;overflow:auto}
.search-panel button{display:block;width:100%;text-align:left;background:transparent;color:var(--moss-dark);border:0;border-radius:0;border-bottom:1px solid var(--line);font-weight:500}
.search-panel button:hover{background:var(--shell);color:var(--ink)}
.slideshow{background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden;scroll-margin-top:90px}
.viewer-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:15px 20px;border-bottom:1px solid var(--line)}
.viewer-heading h2{font-family:inherit;font-size:1rem;font-weight:650;line-height:1.4;margin:0}
.viewer-heading p{flex-shrink:0;margin:0;font-size:.9rem;color:var(--muted)}
.slide-frame{display:flex;align-items:center;justify-content:center;background:#fff;min-height:0}
.slide-frame img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain}
.viewer-controls{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:14px 20px;border-top:1px solid var(--line)}
.view-options{display:flex;align-items:center;justify-content:center;gap:16px;font-size:.86rem;text-align:center}
.view-options a{color:var(--moss-dark)}
.view-options button{background:transparent;color:var(--moss-dark);font-weight:500}
.view-options button:hover{color:#fff}
.viewer-help{font-family:ui-sans-serif,system-ui,sans-serif;color:var(--muted);font-size:.9rem;margin:12px 0 26px}
.reading-details details{border-bottom:1px solid var(--line);padding:15px 0}
.reading-details summary{cursor:pointer;font-weight:650;color:var(--moss-dark)}
.slide-text{white-space:pre-line;max-width:850px;line-height:1.65;padding:18px 0 8px}
#slide-sources{padding-left:22px;overflow-wrap:anywhere}
#slide-sources li{margin:12px 0;font-size:.92rem}
.credit-note{font-size:.9rem;color:var(--muted);max-width:850px}
.study-note{max-width:880px;margin-top:40px}
.study-note h2{font-size:1.7rem;line-height:1.2}
.study-note p{color:var(--muted)}
.skip-link{position:absolute;top:-70px;left:12px;z-index:100;padding:10px 16px;background:#fff;color:var(--ink)}
.skip-link:focus{top:8px}
.slideshow:fullscreen{display:flex;flex-direction:column;height:100dvh;background:#fff;border:0;border-radius:0}
.slideshow:fullscreen .slide-frame{flex:1;overflow:hidden}
.slideshow:fullscreen .slide-frame img{width:100%;height:100%;object-fit:contain}
.slideshow:fullscreen .viewer-heading,.slideshow:fullscreen .viewer-controls{flex-shrink:0}
[hidden]{display:none!important}
@media(max-width:650px){
  .atlas-page{padding-top:28px}.study-tools{grid-template-columns:1fr}
  .slideshow{scroll-margin-top:145px}
  .viewer-heading{padding:12px;gap:12px;align-items:flex-start}.viewer-heading h2{font-size:.9rem}.viewer-heading p{font-size:.8rem}
  .viewer-controls{padding:12px;gap:8px;flex-wrap:wrap}.viewer-controls>button{flex:1}.view-options{order:3;width:100%;padding-top:4px}
  .atlas-intro{margin-bottom:28px}.lead{font-size:1.05rem}
}
@media print{.site-header,.study-tools,.viewer-controls,.viewer-help,.reading-details,.site-footer,.atlas-intro .button{display:none}.atlas-page{padding:0}.atlas-intro h1{font-size:24pt}.slideshow{break-inside:avoid}.study-note{font-size:10pt}}