:root{--brand: #1d5c96;--brand-dark: #164a7a;--text: #1f2933;--muted: #5b6672;--bg: #ffffff;--panel: #f4f5f7;--border: #d9dce1;--ok: #1e7a3c;--err: #b3261e;--radius: 4px;--maxw: 1100px;--sidebar: 300px;--gap: 32px;--font: "Source Sans 3", "Open Sans", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;--mono: ui-monospace, "Cascadia Mono", Consolas, "Liberation Mono", monospace}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:17px;line-height:1.65}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 16px}.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:10}.skip:focus{left:8px;top:8px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.muted,.soon{color:var(--muted)}a{color:var(--brand);text-underline-offset:2px}a:hover{color:var(--brand-dark)}:focus-visible{outline:3px solid #f2a900;outline-offset:2px}h1,h2,h3{line-height:1.25;margin:1.6em 0 .5em}h1{font-size:1.9rem;margin-top:.7em}h2{font-size:1.45rem}h3{font-size:1.15rem}p,ul,ol{margin:0 0 1em}.intro{font-size:1.05rem;color:#323f4b;max-width:62ch}.site-header{background:var(--brand);color:#fff}.site-header .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:4px 28px;padding-top:8px;padding-bottom:8px}.logo{color:#fff;font-weight:700;font-size:1.25rem;text-decoration:none;padding:6px 0}.logo:hover{color:#fff}.site-nav{display:flex;flex-wrap:wrap;gap:0 18px}.site-nav a{color:#fff;text-decoration:none;font-size:.95rem;padding:10px 0;min-height:44px;display:inline-flex;align-items:center}.site-nav a:hover{color:#fff;text-decoration:underline}.breadcrumb{font-size:.9rem;color:var(--muted);padding:10px 0 0}.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:2px 6px;margin:0;padding:0}.breadcrumb li+li:before{content:"›";margin-right:6px}.site-footer{background:var(--panel);border-top:1px solid var(--border);margin-top:56px;padding:28px 0;font-size:.92rem;color:var(--muted)}.footer-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px 24px;margin-bottom:8px}.footer-h{font-size:.95rem;margin:0 0 6px;color:var(--text)}.footer-cols ul{list-style:none;margin:0;padding:0}.footer-cols li{padding:2px 0}.footer-legal{margin-top:12px}.page-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--gap)}.page-main{min-width:0}@media(min-width:900px){.page-grid{grid-template-columns:minmax(0,1fr) var(--sidebar);align-items:start}}.sidebar{display:grid;gap:16px}@media(min-width:900px){.sidebar{margin-top:1.4rem}}.side-box{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}.side-h{font-size:1rem;margin:0 0 8px}.side-box ul{list-style:none;margin:0;padding:0}.side-box li{padding:4px 0;border-top:1px solid var(--border);font-size:.95rem}.side-box li:first-child{border-top:0}.side-box p{margin:0;font-size:.95rem}.text-page{max-width:760px}.hub{max-width:900px}.hub h2{margin-top:1.4em}.hub-list{list-style:none;margin:0;padding:0}.hub-list li{padding:10px 0;border-top:1px solid var(--border)}.hub-list li:first-child{border-top:0}.hub-list strong{display:block}.prose{max-width:760px}.prose>:first-child{margin-top:1.2em}.prose li{margin-bottom:.35em}label{display:block;font-weight:600;margin-bottom:4px}input,select,textarea{min-height:44px;padding:8px 10px;border:1px solid #aeb4bd;border-radius:var(--radius);font:inherit;width:100%;background:#fff;color:var(--text)}textarea{min-height:120px}.field{margin-bottom:14px}.field-row{display:grid;gap:14px;grid-template-columns:minmax(0,1fr)}@media(min-width:560px){.field-row.two{grid-template-columns:1fr 1fr}.field-row.three{grid-template-columns:1fr 1fr 1fr}}.hint{font-size:.88rem;color:var(--muted);margin:4px 0 0}.error{color:var(--err);font-size:.92rem;margin:4px 0 0}fieldset{border:0;padding:0;margin:0 0 14px}legend{font-weight:600;padding:0;margin-bottom:4px}.radios{display:flex;gap:8px 20px;flex-wrap:wrap}.radios label{display:inline-flex;align-items:center;gap:8px;font-weight:400;min-height:44px;margin:0}.radios input{width:20px;min-height:20px;height:20px}button,.btn{min-height:44px;padding:8px 20px;background:var(--brand);color:#fff;border:0;border-radius:var(--radius);font:inherit;font-weight:600;cursor:pointer;box-shadow:0 1px 2px #0003;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}button:hover,.btn:hover{background:var(--brand-dark);color:#fff}button.secondary,.btn.secondary{background:#fff;color:var(--brand);border:1px solid var(--brand);box-shadow:none}button.secondary:hover,.btn.secondary:hover{background:var(--panel);color:var(--brand-dark)}.actions{display:flex;flex-wrap:wrap;gap:10px}.tool-shell{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin:16px 0 8px;display:grid;gap:20px}.tool-result:empty{display:none}.result{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}.result-h{font-size:1.05rem;margin:0 0 8px}.result-body{min-height:3.2em}.result-code{font-family:var(--mono);font-size:1.6rem;letter-spacing:.06em;font-weight:700;word-break:break-all;margin:0 0 10px}.legal-note{font-size:.85rem;color:var(--muted);border-top:1px solid var(--border);margin:12px 0 0;padding-top:8px}.ok{color:var(--ok);font-weight:600}.bad{color:var(--err);font-weight:600}.table-wrap{overflow-x:auto;margin:0 0 1.2em;max-width:100%}table{border-collapse:collapse;width:100%;font-size:.95rem}caption{text-align:left;font-weight:600;padding:0 0 6px;color:var(--muted);font-size:.92rem}th,td{border:1px solid var(--border);padding:7px 10px;text-align:left;vertical-align:top}th{background:var(--panel)}td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}tbody tr:nth-child(2n){background:#fafbfc}tfoot td{font-weight:700;background:var(--panel)}.steps td,.steps th{font-family:var(--mono);font-size:.88rem;white-space:nowrap}.seg{margin:0 0 1.4em}.seg-row{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 14px}.seg-g{display:flex;flex-direction:column;align-items:center;border:1px solid var(--seg-b);background:var(--seg-bg);border-radius:var(--radius);padding:6px 10px 4px;min-width:54px}.seg-chars{font-family:var(--mono);font-size:1.35rem;font-weight:700;letter-spacing:.08em;color:var(--seg-b)}.seg-label{font-size:.78rem;color:var(--text);border-top:2px solid var(--seg-b);margin-top:4px;padding-top:2px;width:100%;text-align:center}.seg-c0{--seg-bg: #e3edf7;--seg-b: #1d5c96}.seg-c1{--seg-bg: #e4f2e8;--seg-b: #1e7a3c}.seg-c2{--seg-bg: #fbf0d9;--seg-b: #8a5a00}.seg-c3{--seg-bg: #dff1f1;--seg-b: #176363}.seg-c4{--seg-bg: #f8e6e6;--seg-b: #a33a3a}.seg-c5{--seg-bg: #e8eaee;--seg-b: #4a5563}.seg-c6{--seg-bg: #eef0dc;--seg-b: #5f6b1a}.bar{margin:0 0 14px}.bar-head{display:flex;justify-content:space-between;gap:12px;font-size:.92rem;margin-bottom:4px}.bar-track{height:14px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.bar-fill{height:100%;background:var(--brand)}.bar-note{font-size:.85rem;color:var(--muted);margin:4px 0 0}.callout{background:#eef4fa;border:1px solid #b9cfe6;border-left:4px solid var(--brand);border-radius:var(--radius);padding:12px 16px;margin:1.4em 0;max-width:760px}.callout p{margin:0}.callout-h{font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:.04em;color:var(--brand-dark);margin-bottom:2px!important}.faq{max-width:760px}.faq h3{margin-top:1.1em}.author{max-width:760px;border-top:1px solid var(--border);margin-top:2em;padding-top:4px;font-size:.95rem}.related{margin-top:2em}.related ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.related li{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:10px 14px;font-size:.95rem}.related li a{font-weight:600;display:block}.related li span{color:var(--muted)}.combo{position:relative}.combo-list{position:absolute;left:0;right:0;top:74px;z-index:5;margin:0;padding:0;list-style:none;background:#fff;border:1px solid #aeb4bd;border-radius:var(--radius);max-height:280px;overflow-y:auto;box-shadow:0 1px 2px #0003}.combo-list li{padding:10px 12px;min-height:44px;cursor:pointer;border-top:1px solid var(--border)}.combo-list li:first-child{border-top:0}.combo-list li[aria-selected=true],.combo-list li:hover{background:#e3edf7}.warn{background:#fbf0d9;border:1px solid #e3c47c;border-radius:var(--radius);padding:8px 12px;font-size:.92rem}[aria-invalid=true]{border-color:var(--err)}.error:empty{display:none}.code-input{font-family:var(--mono);font-size:1.15rem;letter-spacing:.06em;text-transform:uppercase}.code-input::placeholder{text-transform:none;letter-spacing:0;font-family:var(--font);font-size:1rem}details.more{margin:0 0 14px;border:1px solid var(--border);border-radius:var(--radius);background:#fff;padding:0 14px}details.more summary{cursor:pointer;font-weight:600;min-height:44px;display:flex;align-items:center}details.more[open]{padding-bottom:6px}.check-letter{color:var(--brand);border-bottom:3px solid var(--brand);margin-left:2px}.code-list{font-family:var(--mono);font-size:.9rem;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;max-height:320px;overflow:auto;margin:8px 0 12px}.finder{margin:28px 0 8px}.finder-table{max-height:380px;overflow-y:auto}.finder code{font-family:var(--mono)}.stati-table{max-height:560px;overflow:auto}.stati-table thead th{position:sticky;top:0;background:var(--panel);z-index:1}.th-sort{all:unset;cursor:pointer;font-weight:700;display:inline-flex;align-items:center;gap:4px;min-height:44px}.th-sort:hover{text-decoration:underline}.th-sort:focus-visible{outline:3px solid #f2a900;outline-offset:2px}th[aria-sort=ascending] .th-sort:after{content:"▲";font-size:.7em}th[aria-sort=descending] .th-sort:after{content:"▼";font-size:.7em}tr[hidden]{display:none}.hub-list .blurb{display:block;color:var(--muted);font-size:.95rem;margin-top:2px}.prose h2+p{margin-top:.4em}.prose blockquote{margin:1.2em 0;padding:4px 16px;border-left:4px solid var(--border);color:#323f4b}.inline-check{display:inline-flex;align-items:center;gap:8px;font-weight:400;min-height:44px;margin:0}.inline-check input{width:20px;height:20px;min-height:20px}.card-figure{margin:16px 0}.card-svg{width:100%;height:auto;max-width:640px;display:block}.card-figure figcaption{font-size:.9rem;color:var(--muted);margin-top:6px;max-width:640px}.credit{margin-top:8px}textarea.code-input{text-transform:uppercase;line-height:1.5}.site-header{position:relative}.menu-mobile{display:none}@media(max-width:899px){.site-header .wrap{flex-wrap:nowrap;justify-content:space-between;gap:12px;padding-top:4px;padding-bottom:4px}.site-nav{display:none}.logo{font-size:1.1rem}.menu-mobile{display:block}.menu-mobile summary{list-style:none;cursor:pointer;min-height:44px;min-width:44px;padding:0 14px;display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.7);border-radius:var(--radius);color:#fff;font-weight:600}.menu-mobile summary::-webkit-details-marker{display:none}.menu-mobile summary:after{content:"";width:7px;height:7px;border-right:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(45deg) translateY(-2px)}.menu-mobile[open] summary:after{transform:rotate(-135deg) translateY(-2px)}.menu-panel{position:absolute;left:0;right:0;top:100%;z-index:30;background:var(--brand-dark);border-top:1px solid rgba(255,255,255,.3);box-shadow:0 2px 4px #00000040;display:flex;flex-direction:column}.menu-panel a{color:#fff;text-decoration:none;padding:0 16px;min-height:48px;display:flex;align-items:center;border-bottom:1px solid rgba(255,255,255,.18)}.menu-panel a:hover{background:#ffffff1a;color:#fff}}.tool-shell{grid-template-columns:minmax(0,1fr)}.tool-shell>*,.tool-form,.tool-result,.result,.result-body,.field,.field-row>*{min-width:0}.field-row{grid-template-columns:minmax(0,1fr)}@media(min-width:560px){.field-row.two{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.field-row.three{grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,1fr)}}input,select,textarea,.code-list{max-width:100%}.result-code,.result-body p,.result-body li{overflow-wrap:anywhere}@media(max-width:559px){table{font-size:.88rem}th,td{padding:6px}.table-wrap:not(.steps) th,.table-wrap:not(.steps) td{overflow-wrap:anywhere}.steps td,.steps th{font-size:.8rem}.wrap{padding:0 12px}.tool-shell{padding:12px;gap:14px}.result{padding:12px}}