:root{--paper:#121f30;--light:#1c2d44;--ink:#e9eff9;--muted:#b4c3d8;--line:#4e6481;--control:#293e58;--hover:#354f6e;--accent:#c9d9ed;color-scheme:dark;scroll-behavior:smooth}
body{height:auto;min-height:100vh;overflow:auto;background:var(--paper)}#app{height:auto;min-height:100vh;max-width:none}.masthead{padding-block:20px;border-bottom:1px solid #4e64817a}.masthead h1{font-size:32px}.masthead nav{gap:8px;flex-wrap:wrap}.masthead .button,.masthead select{background:#1c2d44;border-color:#4e6481;color:#e9eff9}a{color:inherit}.help-page{width:min(1460px,100%);margin:0 auto;padding:0 10px 65px;line-height:1.75;min-width:0}.help-hero{padding:48px 0 38px;max-width:1010px}.help-hero h2{font:clamp(32px,4vw,54px)/1.16 Georgia,serif;max-width:850px;letter-spacing:-.6px;margin:15px 0 20px}.help-hero>p:not(.eyebrow){font-size:18px;max-width:780px;color:#cdd9e9}.hero-note{margin-top:24px;max-width:900px;padding:17px 22px;border-left:2px solid #83dce5;background:#1c2d4470;color:var(--muted);font-size:13px}.hero-note p{margin:0}.guide-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:34px;align-items:start}.guide-sidebar{position:sticky;top:18px;max-height:calc(100vh - 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40px);width:min(1500px,calc(100vw - 40px));max-height:calc(100vh - 40px);background:#121f30;border:1px solid #7896b8;border-radius:10px;color:#e9eff9}dialog::backdrop{background:#06101ed9;backdrop-filter:blur(4px)}.viewer-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 20px;border-bottom:1px solid #4e6481;position:sticky;top:0;background:#121f30;z-index:1}.viewer-header h2{font:23px Georgia,serif;margin:0}.viewer-header button{font-size:13px}.viewer-scroll{overflow:auto;max-height:calc(100vh - 130px)}.viewer-scroll img{display:block;width:1440px;max-width:none;height:760px}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid #83dce5;outline-offset:4px}h2:focus{outline:none}
@media(max-width:1100px){.guide-layout{grid-template-columns:190px minmax(0,1fr);gap:23px}.reading-block{padding:18px}.guide-body{gap:16px}.help-hero{padding-top:35px}.guide-defaults dl{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:820px){.guide-layout{grid-template-columns:1fr;gap:25px}.guide-sidebar{position:static;max-height:none}.guide-navigation nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.guide-navigation .nav-group{margin:0}.nav-about{grid-column:1/-1}.guide-body{grid-template-columns:1fr}.reading-block:last-child:nth-child(odd){grid-column:auto}.help-hero{padding-top:25px}.help-page{padding:0 2px 40px}.guide-chapter{margin-bottom:30px}.masthead h1{font-size:28px}.masthead nav a,.masthead select{font-size:12px}.guide-about,.guide-contact{padding:22px}}
@media(max-width:480px){.help-hero h2{font-size:32px}.help-hero>p:not(.eyebrow){font-size:16px}.chapter-header{gap:10px}.chapter-number{width:36px;height:36px;font-size:18px}.chapter-kind{font-size:9px}.guide-chapter h2{font-size:26px}.chapter-lead{font-size:15px}.figure-reading{padding:15px}.guide-defaults{padding:15px}.guide-navigation nav{grid-template-columns:1fr}.nav-about{grid-column:auto}.viewer-header{padding:12px;gap:10px}.viewer-header h2{font-size:18px}.viewer-header button{font-size:11px;padding:9px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}}

.guide-navigation a{border:0;background:transparent}.guide-navigation a:hover,.guide-navigation a[aria-current]{background:#293e58}
.reading-block p,.chapter-lead,.figure-reading,.guide-about p,.guide-contact p,.hero-note{font-family:Arial,sans-serif}