:root{--bg:#fff;--panel:#fff;--text:#5b5b5b;--muted:#aaa;--line:#d9e1ee;--accent:#006eaf;--accent-dark:#004ea1;--sidebar-width:290px;--header-height:70px;--content-max-width:1024px;--sidebar-z:40;--header-z:20}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol;line-height:1.6;margin:0}p{text-align:justify}a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}a:hover{color:var(--accent-dark)}strong{color:#004370;font-weight:600}.footnotes{font-size:smaller}.app-shell{min-height:100vh}.sidebar{background:#f8fafc;border-right:1px solid var(--line);height:100vh;inset:0 auto 0 0;overflow:hidden;position:fixed;transition:transform .22s ease;width:var(--sidebar-width);z-index:var(--sidebar-z)}.sidebar-brand{align-items:center;background:#fff;border-bottom:1px solid var(--line);display:flex;height:185px;justify-content:center;padding:1rem}.sidebar-brand-link{align-items:center;color:var(--accent);display:flex;flex-direction:column;text-align:center}.sidebar-brand-link,.sidebar-brand-link:hover{text-decoration:none}.sidebar-logo{height:175px;margin-bottom:.35rem;object-fit:contain;width:220px}.sidebar-brand-title{font-size:1.35rem;font-weight:400;line-height:1.2}.sidebar-brand-subtitle{display:none}.sidebar-nav{height:calc(100vh - 230px);overflow-x:hidden;overflow-y:auto;padding:1.35rem .65rem 2.5rem}.public-toc,.public-toc ol{list-style:none;margin:0;padding-left:0}.public-toc ol{margin-top:.25rem;padding-left:.9rem}.public-toc li{margin:0}.public-toc a{border-radius:2px;color:#3e4a5c;display:block;font-size:.94rem;line-height:1.3;overflow:hidden;padding:.36rem .35rem;text-decoration:none;text-overflow:ellipsis;white-space:nowrap}.public-toc a:hover{background:#eef4fa;color:var(--accent-dark);text-decoration:none}.public-toc a.active{background:#e7eef5;color:var(--accent-dark);font-weight:700}.public-toc a.current-sidebar-link{background:#dceaf5;color:var(--accent-dark);font-weight:700}.sidebar-backdrop{display:none}.app-main{margin-left:var(--sidebar-width);min-height:100vh;transition:margin-left .22s ease}.site-header{align-items:stretch;background:#e3e3e3;border-bottom:1px solid #d3d3d3;display:flex;height:var(--header-height);position:sticky;top:0;z-index:var(--header-z)}.sidebar-toggle{align-items:center;background:#e5e5e5;border:0;border-radius:3px;cursor:pointer;display:inline-flex;flex-direction:column;gap:4px;height:38px;justify-content:center;margin:75px 0 0;transition:transform .22s ease,background .15s ease;width:38px;z-index:calc(var(--sidebar-z) + 1)}.sidebar-toggle span{background:#333;display:block;height:2px;width:18px}.site-header-inner{align-items:center;display:flex;flex:1;gap:1.25rem;justify-content:space-between;min-width:0;padding:0}.site-title{color:#1378cb;font-size:2rem;font-weight:300;line-height:1}.site-title,.site-title:hover{text-decoration:none}.top-nav{align-items:center;display:flex;justify-content:flex-end;max-width:48%;min-width:0}.top-nav-image{display:block;height:auto;max-height:48px;max-width:min(420px,100%);object-fit:contain;width:auto}.content,.home{margin:0 auto;max-width:var(--content-max-width);padding:3.5rem 2rem 2rem}.content h1,.content h2,.content h3,.content h4,.home h1,.home h2,.home h3,.home h4{color:#005a9c;font-weight:400;line-height:1.25}.content h1,.home h1{border-bottom:1px solid var(--line);font-size:2rem;margin-top:0;padding-bottom:.55rem}.content [id],.content a[name],.home [id],.home a[name]{scroll-margin-top:calc(var(--header-height) + 28px)}.content a[name],.content span[id],.home a[name],.home span[id]{display:inline-block}.content h2,.home h2{font-size:1.45rem;margin-top:2rem}.content img,.home img{display:block;height:auto!important;margin-left:auto;margin-right:auto;max-width:100%}.content figure,.home figure{margin:1.5em auto;text-align:center}.content figcaption,.equation-caption,.figure-caption,.home figcaption,.table-caption{color:#0345a5;display:block;font-size:.95em;font-weight:700;margin:.5em auto 1.25em;max-width:100%;text-align:center}.content table,.home table{border-collapse:collapse;margin:1.25rem auto;max-width:100%;width:auto}.content td,.content th,.home td,.home th{border:1px solid var(--line);padding:.4rem .55rem;vertical-align:top}.content table caption,.home table caption{caption-side:bottom;color:#555;font-size:.95em;margin-top:.5em;text-align:center}.breadcrumb{color:var(--muted);font-size:.9rem;margin:0 0 1.25rem}.breadcrumb a{color:var(--muted);text-decoration:none}.breadcrumb a:hover{color:var(--accent-dark);text-decoration:underline}.breadcrumb span{margin:0 .35rem}.breadcrumb .current{color:var(--text);font-weight:600}.button{background:var(--accent);border-radius:4px;display:inline-block;padding:.7rem 1rem}.button,.button:hover{color:#fff;text-decoration:none}.button:hover{background:var(--accent-dark)}.index-actions{margin:1.5rem 0 2rem}.manual-index{border-top:1px solid var(--line);margin-top:2rem;padding-top:1rem}.manual-index-list{list-style:none;margin:1rem 0 0;padding-left:0}.manual-index-list li{list-style:none;margin:.35rem 0}.manual-index-list li.level-1{margin-left:1rem}.manual-index-list li.level-2{margin-left:2rem}.manual-index-list li.level-3{margin-left:3rem}.page-nav{border-top:1px solid var(--line);display:flex;flex-wrap:nowrap;gap:1rem;justify-content:space-between;margin:3rem 0 1rem;overflow:hidden}.page-nav .pagination-item{margin-top:1rem;max-width:48%;min-width:0}.page-nav .pagination-item a,.page-nav .pagination-item a:hover{text-decoration:none}.page-nav .pagination-item a{color:inherit}.page-nav .pagination-item-label{color:var(--muted);font-size:.8em;line-height:1;opacity:.75}.page-nav .pagination-item-label>*{line-height:1;vertical-align:middle}.page-nav .pagination-item-label svg{height:.8em;width:auto;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1px}.page-nav .pagination-item--previous svg{margin-right:.5em}.page-nav .pagination-item--next{margin-left:auto;text-align:right}.page-nav .pagination-item--next svg{margin-left:.5em}.page-nav .pagination-item-title{color:var(--muted);font-size:.9rem;line-height:1.35;margin-top:.2rem;overflow-wrap:anywhere;transition:color .2s ease}.page-nav a:focus-visible .pagination-item-title,.page-nav a:hover .pagination-item-title{color:var(--accent-dark);text-decoration:underline}.page-nav a:focus-visible{border-radius:2px;outline:2px solid var(--accent);outline-offset:4px}.site-footer{border-top:1px solid var(--line);margin:.25rem auto 0;max-width:var(--content-max-width);padding:1.5rem 2rem 2.5rem}.footer-image{display:block;height:auto;margin:0 auto;max-width:520px;width:100%}.pdf-download-fixed{align-items:center;background:#b3261e;border:none!important;border-radius:4px;box-shadow:0 3px 10px rgba(0,0,0,.18);display:flex;height:54px;justify-content:center;position:fixed;right:-1px;text-decoration:none!important;top:145px;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;width:49px;z-index:80}.pdf-download-fixed:hover{background:#991b1b;color:#fff;text-decoration:none}.erg-pdf-download-icon{align-items:center;border:2px solid #fff;border-radius:3px;color:#fff;display:flex;font-size:.78rem;font-weight:800;height:44px;justify-content:center;letter-spacing:.02em;width:38px}.layout.no-sidebar{margin-left:0}body.sidebar-collapsed .sidebar{transform:translateX(calc(var(--sidebar-width)*-1))}body.sidebar-collapsed .app-main{margin-left:0}.zoomable-image{cursor:zoom-in}.image-zoom-open{overflow:hidden}.image-zoom-overlay{align-items:center;background:rgba(15,23,42,.86);display:none;inset:0;justify-content:center;padding:2rem;position:fixed;z-index:100}.image-zoom-overlay.open{display:flex}.image-zoom-dialog{align-items:center;display:flex;flex-direction:column;max-height:94vh;max-width:min(1200px,96vw);position:relative}.image-zoom-img{background:#fff;box-shadow:0 18px 60px rgba(0,0,0,.45);display:block;height:auto;max-height:calc(94vh - 4rem);max-width:100%;object-fit:contain;width:auto}.image-zoom-caption{color:#fff;font-size:.95rem;margin-top:.85rem;max-width:100%;text-align:center}.image-zoom-close{background:#fff;border:0;border-radius:999px;box-shadow:0 8px 24px rgba(0,0,0,.3);color:#111827;cursor:pointer;font-size:1.6rem;height:2.25rem;line-height:1;position:absolute;right:-1rem;top:-1rem;width:2.25rem;z-index:2}.image-zoom-close:hover{background:#f3f4f6}@media (max-width:980px){.sidebar{transform:translateX(calc(var(--sidebar-width)*-1))}body.sidebar-open .sidebar{transform:translateX(0)}.app-main{margin-left:0}.sidebar-backdrop{background:rgba(0,0,0,.35);display:none;inset:0;position:fixed;z-index:calc(var(--sidebar-z) - 1)}body.sidebar-open .sidebar-backdrop{display:block}.site-title{font-size:1.55rem;margin-left:10px}.top-nav{max-width:42%}.top-nav-image{max-height:34px}.content,.home{padding:2rem 1.25rem}.pdf-download-fixed{border-radius:999px;bottom:1rem;right:1rem;top:auto}.content table,.home table{display:block;max-width:100%;overflow-x:auto;width:max-content}.erg-pdf-download-icon{height:25px}.sidebar-toggle{left:0;margin:0;position:fixed;top:73px;z-index:calc(var(--sidebar-z) + 2)}body.sidebar-open .sidebar-toggle{transform:translateX(var(--sidebar-width))}}@media (max-width:520px){:root{--header-height:58px}.site-header{height:var(--header-height)}.site-title{font-size:1.25rem}.content h1,.home h1{font-size:1.55rem}.top-nav{display:none}.image-zoom-overlay{padding:1rem}.image-zoom-close{right:.5rem;top:.5rem}.image-zoom-img{max-height:calc(92vh - 4rem)}}