/* Product introduction and release notes. Load after themes.css and tutorial.css. */
.tutorial-header nav.pages-nav{gap:22px}
.pages-nav a{color:var(--muted)}
.pages-nav a[aria-current="page"]{color:var(--ink);font-weight:600;border-bottom:2px solid var(--gold);padding-bottom:3px}
.version-chip{display:inline-flex;align-items:baseline;gap:9px;padding:6px 12px;border:1px solid var(--line);background:var(--paper);font-size:11px;letter-spacing:1px;color:var(--muted)}
.version-chip b{font:600 12px/1.4 var(--sans);letter-spacing:.5px;color:var(--ink)}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-facts span{padding:7px 12px;background:var(--panel);border:1px solid var(--line);font-size:11px;color:var(--muted)}
.page-section{padding:52px 0 46px;border-top:1px solid var(--line)}
.page-section:first-of-type{border-top:0;padding-top:46px}
.page-section>p{font-size:14px;line-height:1.95;margin:14px 0;max-width:820px}
.page-section h3{font-size:16px;font-weight:600;line-height:1.8;margin:24px 0 10px}
.page-lead{font:400 17px/1.95 var(--serif);color:var(--ink);max-width:840px;margin:16px 0 0}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(296px,1fr));gap:1px;margin:28px 0 0;background:var(--line);border:1px solid var(--line)}
.feature-card{background:var(--paper);padding:24px 23px 22px}
.feature-card:nth-child(even){background:var(--cream)}
.feature-index{font:italic 12px Georgia,serif;color:var(--gold);letter-spacing:1px}
.feature-card h3{font:600 15px/1.7 var(--sans);margin:10px 0 8px}
.feature-card p{font-size:12.5px;line-height:1.95;color:var(--muted)}
.feature-card p+p{margin-top:8px}
.audience-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin:26px 0 0}
.audience-card{background:var(--paper);border:1px solid var(--line);border-top:3px solid var(--green);padding:24px 22px}
.audience-card small{display:block;font-size:10px;letter-spacing:1.4px;color:var(--gold)}
.audience-card h3{font:500 19px/1.6 var(--serif);margin:10px 0 10px}
.audience-card p{font-size:12.5px;line-height:1.95;color:var(--muted)}
.audience-card ul{margin:12px 0 0;padding-left:17px;font-size:12.5px;line-height:1.9;color:var(--muted)}
.release{display:grid;grid-template-columns:158px minmax(0,1fr);gap:32px;padding:34px 0;border-top:1px solid var(--line)}
.release:first-of-type{border-top:0;padding-top:12px}
.release-side{position:sticky;top:26px;align-self:start}
.release-tag{display:inline-block;font-size:10px;letter-spacing:1.4px;color:var(--gold);border:1px solid var(--line);background:var(--paper);padding:5px 10px}
.release-side h3{font:500 20px/1.6 var(--serif);margin:12px 0 6px}
.release-side p{font-size:11px;line-height:1.85;color:var(--muted)}
.release-body>p{font-size:13.5px;line-height:1.95;color:var(--muted);max-width:760px}
.change-list{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:13px;max-width:800px}
.change-list>li{display:grid;grid-template-columns:66px minmax(0,1fr);gap:14px;font-size:13px;line-height:1.9}
.change-kind{font-size:10px;letter-spacing:1px;text-align:center;color:var(--green);background:var(--green-soft);border:1px solid var(--line);height:22px;line-height:20px;border-radius:2px}
.change-kind.fix{color:var(--gold);background:var(--subtle)}
.change-kind.note{color:var(--muted);background:var(--panel)}
.change-list b{font-weight:600}
.version-line{list-style:none;padding:0;margin:26px 0 0;border-left:2px solid var(--line)}
.version-line>li{position:relative;padding:0 0 30px 28px}
.version-line>li:last-child{padding-bottom:0}
.version-line>li:before{content:"";position:absolute;left:-7px;top:6px;width:10px;height:10px;background:var(--paper);border:2px solid var(--gold);border-radius:50%}
.version-line b{display:block;font:600 15px/1.7 var(--sans)}
.version-line small{display:block;font-size:11px;color:var(--gold);letter-spacing:1px;margin:3px 0 8px}
.version-line p{font-size:13px;line-height:1.9;color:var(--muted);max-width:720px}
.doc-links{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px;margin:26px 0 0}
.doc-links>a{display:block;padding:24px 22px;background:var(--paper);border:1px solid var(--line);text-decoration:none;color:var(--ink)}
.doc-links>a:hover{border-color:var(--gold);color:var(--ink)}
.doc-links small{font-size:10px;letter-spacing:1.4px;color:var(--gold)}
.doc-links h3{font:500 19px/1.6 var(--serif);margin:10px 0 8px}
.doc-links p{font-size:12.5px;line-height:1.9;color:var(--muted)}
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:28px;margin:44px 0 0;padding:30px 32px;background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--green)}
.cta-band h2{font:500 24px/1.6 var(--serif)}
.cta-band p{font-size:12.5px;color:var(--muted);margin-top:6px}
.cta-band-actions{display:flex;gap:14px;flex-shrink:0;flex-wrap:wrap}
.limit-list{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:14px;max-width:840px}
.limit-list>li{padding:16px 18px;background:var(--panel);border:1px solid var(--line);font-size:13px;line-height:1.9;color:var(--muted)}
.limit-list b{color:var(--ink);font-weight:600}
@media(max-width:1000px){
.audience-grid{gap:16px}
.release{grid-template-columns:132px minmax(0,1fr);gap:24px}
}
@media(max-width:560px){
.tutorial-header{flex-wrap:wrap;gap:13px}
.tutorial-header nav.pages-nav{width:100%;gap:18px;justify-content:flex-start;flex-wrap:wrap}
.tutorial-header nav.pages-nav>a:first-child{display:inline-flex}
.tutorial-header nav.pages-nav .return-link{margin-left:auto}
.pages-nav a[aria-current="page"]{border-bottom-width:2px}
}
@media(max-width:380px){
.tutorial-header nav.pages-nav{gap:12px;font-size:11px}
.tutorial-header nav.pages-nav .return-link{padding:7px 10px;font-size:10px}
}
@media(max-width:760px){
.tutorial-header nav.pages-nav{gap:14px}
.tutorial-header nav.pages-nav>a:first-child{display:inline-flex}
.pages-nav a[aria-current="page"]{border-width:0}
.page-section{padding:36px 0 32px}
.page-lead{font-size:15px}
.audience-grid{display:block}
.audience-card+.audience-card{margin-top:16px}
.release{display:block;padding:26px 0}
.release-side{position:static;margin-bottom:14px}
.feature-grid{grid-template-columns:1fr}
.change-list>li{grid-template-columns:58px minmax(0,1fr);gap:11px;font-size:12.5px}
.cta-band{display:block;padding:24px 22px}
.cta-band-actions{margin-top:18px}
.doc-links{grid-template-columns:1fr;gap:14px}
}
@media print{
.pages-nav,.cta-band-actions,.version-chip{display:none}
.feature-grid,.audience-grid{border:0;background:none}
.feature-card,.audience-card{border:1px solid #ccc}
}