@font-face{font-family:Field;src:url('/assets/field.woff2') format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
:root{--paper:#fff;--paper-light:#fff;--ink:#171c22;--muted:#46505b;--line:#d5dae0;--sand:#fff;--rust:#173f63;--olive:#173f63;--sans:Field,Arial,sans-serif;--serif:Field,Arial,sans-serif;--radius:6px;--space-section:64px;--space-group:40px;--space-element:24px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.65}body:has(dialog[open]){overflow:hidden}::selection{background:#dce8f2;color:var(--ink)}
a{color:var(--rust);text-underline-offset:4px;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}button,input,select,textarea{font:inherit}button,a,summary{touch-action:manipulation}button,summary{cursor:pointer}button:disabled{cursor:default}button{border:0}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #173f63;outline-offset:4px}img,svg{max-width:100%}p{margin:0 0 1.25em}h1,h2,h3,h4{margin:0;font-family:var(--sans);font-weight:650;line-height:1.2;letter-spacing:-.025em}h1 em,h2 em,h3 em{font-style:normal;color:inherit}
.wrap{width:min(1120px,calc(100% - 80px));margin:0 auto}.skip{position:fixed;top:-100px;left:18px;z-index:1000;padding:12px 18px;background:var(--ink);color:#fff}.skip:focus{top:12px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.masthead{position:sticky;top:0;z-index:40;background:#fff;border-bottom:1px solid var(--line)}.mast-inner{min-height:86px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{font-size:23px;font-weight:700;color:var(--ink);letter-spacing:-.035em;text-decoration:none;line-height:1.15;white-space:nowrap}.nav{display:flex;align-items:center;gap:25px;font-size:15px}.nav a{color:var(--ink);text-decoration:none;padding:12px 0}.nav a:hover{text-decoration:underline}.nav .nav-action{background:var(--ink);color:#fff;padding:10px 18px;border-radius:var(--radius);font-weight:600}.nav .nav-action:hover{background:#303b48;text-decoration:none}.nav-button,.mobile-toggle{background:none;color:var(--ink);width:44px;height:44px;padding:10px;display:grid;place-items:center;flex:none}.mobile-toggle,.mobile-menu{display:none}
.eyebrow{display:block;font-size:14px;font-weight:600;line-height:1.5;letter-spacing:0;text-transform:none;color:var(--muted);margin-bottom:16px}.eyebrow .index{margin-right:12px}.arrow{font-family:Arial,sans-serif;font-size:20px;line-height:1;margin-left:12px}.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;min-height:52px;border:1px solid var(--ink);border-radius:var(--radius);padding:13px 20px;background:#fff;color:var(--ink);text-decoration:none;font-size:16px;font-weight:600;line-height:1.4}.button:hover{background:#edf1f5;text-decoration:none}.button.primary{background:var(--ink);color:#fff}.button.primary:hover{background:#303b48}.button:disabled{background:#eef0f2;color:#46505b;border-color:#a6adb5}.text-link{font-size:16px}.section{padding:64px 0}
.home-hero{display:grid;grid-template-columns:1.45fr 1fr;gap:90px;align-items:center;padding-top:72px;padding-bottom:64px}.home-intro h1{font-size:64px;line-height:1.08;letter-spacing:-.04em}.home-intro .eyebrow{margin-bottom:22px}.home-deck{font-size:20px;line-height:1.6;max-width:510px;margin:26px 0}.home-caption{font-size:14px;color:var(--muted);margin:13px 0 0}.home-paths{border-left:1px solid var(--line);padding-left:36px;scroll-margin-top:110px}.home-paths h2{font-size:21px;letter-spacing:-.015em;margin-bottom:16px}.home-paths a{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:19px 0;border-bottom:1px solid var(--line);font-size:17px;font-weight:550;text-decoration:none;color:var(--ink)}.home-paths a:hover span:first-child{text-decoration:underline}.home-paths p{font-size:15px;color:var(--muted);line-height:1.65;margin:20px 0 0}
.home-information{border-top:1px solid var(--line);padding-top:38px;padding-bottom:44px}.home-section-head{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:26px}.home-section-head h2,.home-next h2{font-size:27px}.home-section-head a{font-size:15px;white-space:nowrap}.home-guide-links{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}.home-guide-links a{font-size:17px;font-weight:600}.home-guide-links p{font-size:15px;color:var(--muted);line-height:1.6;margin:7px 0 0}.home-next{border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1.15fr;gap:90px;padding-top:44px;padding-bottom:44px}.home-next p{font-size:17px;max-width:360px;margin:15px 0 0;color:var(--muted)}.home-next ol{margin:0;padding-left:25px;font-size:16px}.home-next li{padding-left:7px;margin-bottom:14px;line-height:1.7}.home-next li:last-child{margin:0}.home-next strong{font-weight:600;display:block}.home-contact{border-top:1px solid var(--line);padding:35px 0 48px;display:flex;align-items:center;justify-content:space-between;gap:30px}.home-contact h2{font-size:24px;max-width:500px}
.footer{border-top:1px solid var(--line);padding:30px 0;background:#fff}.footer-top{display:flex;justify-content:space-between;align-items:start;gap:35px}.footer .brand{font-size:19px}.footer-top p{font-size:14px;color:var(--muted);margin:9px 0 0}.footer nav{display:flex;gap:20px;flex-wrap:wrap;justify-content:flex-end;font-size:14px}.footer nav a{display:inline-block;padding:8px 0;color:var(--ink)}.footer-notice{color:var(--muted);font-size:14px;line-height:1.6;margin:25px 0 0;max-width:800px}
.page-head{padding:36px 0 38px;border-bottom:1px solid var(--line)}.breadcrumbs{font-size:14px;color:var(--muted);display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:24px;line-height:1.6}.breadcrumbs a{color:var(--muted)}.page-head h1{font-size:42px;line-height:1.2;max-width:940px}.page-head .eyebrow{margin-bottom:12px}.page-deck{font-size:19px;line-height:1.7;color:var(--muted);max-width:810px;margin:20px 0 0}.page-tools{display:flex;justify-content:space-between;align-items:center;gap:25px;margin-top:23px;font-size:14px;color:var(--muted)}.page-tools button{border:1px solid #78838f;border-radius:var(--radius);background:#fff;padding:8px 15px;color:var(--ink);font-size:14px;min-height:44px}.review-stamp{font-size:14px}.article-layout{display:grid;grid-template-columns:230px minmax(0,750px);gap:64px;justify-content:start;padding:44px 0 60px}.toc{position:sticky;top:115px;align-self:start;font-size:14px;line-height:1.65}.toc .eyebrow{color:var(--ink);font-size:15px;margin-bottom:12px}.toc ol{list-style:none;padding:0;margin:0;border-left:1px solid var(--line)}.toc a{display:block;padding:8px 0 8px 16px;color:var(--muted);text-decoration:none}.toc a:hover,.toc a.active{color:var(--rust);text-decoration:underline}.toc .text-link{padding:0;margin-top:24px;font-size:15px;text-decoration:underline}.article{min-width:0;overflow-wrap:anywhere}.article-margin,.reading-progress{display:none}.article .answer-box{border-left:3px solid var(--ink);padding-left:24px;margin-bottom:36px}.answer-box .eyebrow{font-size:15px;color:var(--ink);margin-bottom:12px}.article .answer-box p{font-size:20px;line-height:1.65;letter-spacing:0;margin:0}.article-section{margin-bottom:36px;scroll-margin-top:110px}.article h2{font-size:28px;line-height:1.25;margin:0 0 20px}.article h3{font-size:23px;line-height:1.3;margin:24px 0 16px}.article p{font-size:18px;line-height:1.8}.article ul{font-size:17px;line-height:1.8;padding-left:22px}.article li{margin-bottom:10px}.record-panel{border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin:38px 0;background:#fff}.record-panel .eyebrow{font-size:14px}.record-panel h2{font-size:26px}.record-panel ul{list-style:none;padding:0;margin:20px 0 25px}.record-panel li{padding:10px 0 10px 25px;border-bottom:1px solid var(--line);position:relative;margin:0}.record-panel li:before{content:'□';position:absolute;left:0;color:var(--ink)}.article-faq details{border-top:1px solid var(--line);padding:18px 0}.article-faq details:last-of-type{border-bottom:1px solid var(--line)}.article-faq summary{font-size:17px;font-weight:600;line-height:1.6;display:flex;justify-content:space-between;gap:24px}.article-faq p{font-size:17px;margin:15px 0 0}.references{margin-top:40px;padding-top:25px;border-top:1px solid var(--line);scroll-margin-top:110px}.references h2{font-size:25px}.references ol{font-size:15px;line-height:1.7;padding-left:21px}.references li{margin-bottom:12px}.article .review-note{font-size:14px;color:var(--muted);line-height:1.75;margin-top:25px}.related{border-top:1px solid var(--line);padding:36px 0;background:#fff}.related h2{font-size:27px;margin-bottom:25px}.related .eyebrow{font-size:14px}.related-links{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}.related-links a{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding:16px 0;font-size:16px;text-decoration:none;color:var(--ink);gap:16px}.related-links a:hover{text-decoration:underline}
.library-controls{display:flex;align-items:center;gap:24px;margin-bottom:24px;flex-wrap:wrap}.search-field{flex:1;min-width:240px;border:1px solid #78838f;border-radius:var(--radius);padding:13px 15px;background:#fff;color:var(--ink);font-size:17px}.filter-select{padding:13px;background:#fff;border:1px solid #78838f;border-radius:var(--radius);color:var(--ink);font-size:16px;max-width:100%}.result-meta{font-size:15px;color:var(--muted);margin-bottom:23px}.library-results{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}.guide-result{display:block;min-width:0;border-top:1px solid var(--line);padding:23px 0;color:var(--ink);text-decoration:none}.guide-result .eyebrow{font-size:14px;margin-bottom:10px}.guide-result h2{font-size:23px;line-height:1.3}.guide-result p{font-size:16px;color:var(--muted);line-height:1.7;margin:12px 0 0}.guide-result:hover h2{text-decoration:underline}.empty-results{grid-column:1/-1;font-size:18px;padding:25px 0}
.enquiry-section{padding:36px 0 40px}.enquiry-section>.eyebrow{display:none}.enquiry-section h2{font-size:28px;margin:0 0 16px}.enquiry-intro{font-size:16px;line-height:1.7;max-width:810px;overflow-wrap:anywhere}.enquiry-section .worksheet{max-width:810px;margin-top:25px}.worksheet{border:1px solid #a6adb5;border-radius:var(--radius);padding:30px;background:#fff}.worksheet fieldset{border:0;margin:0 0 30px;padding:0;min-width:0}.worksheet legend{font-size:21px;font-weight:600;line-height:1.3;margin-bottom:20px}.worksheet label{display:block;font-size:16px;font-weight:550;margin-bottom:8px}.worksheet input,.worksheet textarea,.worksheet select{width:100%;border:1px solid #78838f;border-radius:var(--radius);background:#fff;color:var(--ink);padding:11px 12px;font-size:16px;margin-bottom:18px}.worksheet textarea{min-height:120px;resize:vertical}.worksheet .hint{font-size:14px;line-height:1.7;color:var(--muted);margin:0 0 20px}.enquiry-fields{display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.enquiry-trap{position:absolute;left:-5000px;top:auto;width:1px;height:1px;overflow:hidden}.check-option{display:flex!important;align-items:start;gap:12px;font-size:15px!important;font-weight:400!important;line-height:1.7;margin-bottom:18px!important}.check-option input{width:18px;height:18px;flex:none;margin:4px 0 0;accent-color:var(--ink)}.enquiry-section .check-option{display:block!important}.enquiry-section .check-option input{float:left;margin-right:12px}.enquiry-section .check-option a{display:inline}.worksheet-actions{display:flex;gap:18px;align-items:center;flex-wrap:wrap}.worksheet-actions .plain{font-size:15px;color:var(--ink);background:none;text-decoration:underline;padding:10px 0;min-height:44px}.live-message{font-size:16px;color:var(--ink);line-height:1.7;margin:18px 0 0;overflow-wrap:anywhere}.optional-preparation{border-top:1px solid var(--line);margin-bottom:45px}.optional-preparation>summary{font-size:17px;font-weight:600;padding:23px 0}.worksheet-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:48px;padding:14px 0 30px}.worksheet-aside h2{font-size:26px;line-height:1.3}.worksheet-aside p{font-size:16px;line-height:1.8;color:var(--muted);margin-top:20px}.worksheet-aside .eyebrow{display:none}.contact-details{border-top:1px solid var(--line);padding-top:22px;margin-top:25px;overflow-wrap:anywhere}.contact-details h3{font-size:19px}.contact-details p{font-size:15px}.enquiry-test-note{font-size:15px;padding:18px;border:1px solid var(--line)}
dialog{width:min(800px,calc(100% - 36px));max-height:calc(100vh - 60px);padding:0;border:1px solid #78838f;border-radius:var(--radius);background:#fff;color:var(--ink)}dialog::backdrop{background:#171c2266}.search-dialog-inner{padding:28px}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px}.dialog-head h2{font-size:27px;line-height:1.3}.dialog-close{width:44px;height:44px;background:#fff;color:var(--ink);font-size:27px;flex:none}.dialog-search{width:100%;border:1px solid #78838f;border-radius:var(--radius);padding:13px;font-size:17px;color:var(--ink);background:#fff}.dialog-results{max-height:48vh;overflow:auto;margin:20px 0}.dialog-result{display:block;border-bottom:1px solid var(--line);padding:15px 0;color:var(--ink);text-decoration:none}.dialog-result small{display:block;font-size:13px;color:var(--muted);margin-bottom:5px}.dialog-result span{font-size:18px;font-weight:550;line-height:1.4}.dialog-result:hover span{text-decoration:underline}.dialog-empty{font-size:16px;padding:15px 0}.dialog-tip{font-size:14px;color:var(--muted);margin:0}.notfound{padding:70px 0;min-height:60vh}.notfound h1{font-size:42px}.notfound p{max-width:550px;margin:25px 0}
@media(max-width:1000px){.home-hero{gap:48px}.home-intro h1{font-size:58px}.home-next{gap:48px}.article-layout{grid-template-columns:190px minmax(0,1fr);gap:35px}.nav{gap:17px}.footer-top{display:block}.footer nav{justify-content:flex-start;margin-top:16px}}
@media(max-width:800px){.wrap{width:calc(100% - 48px)}.nav>a:not(.nav-action){display:none}.mobile-toggle{display:grid}.nav{gap:8px}.mobile-menu.open{display:flex;flex-direction:column;border-top:1px solid var(--line);padding:12px 24px}.mobile-menu a{color:var(--ink);font-size:17px;padding:10px 0;text-decoration:none}.home-hero{padding-top:48px;grid-template-columns:1fr;gap:36px}.home-intro h1{font-size:54px}.home-deck{max-width:620px}.home-paths{border-left:0;border-top:1px solid var(--line);padding:26px 0 0}.home-paths p{max-width:550px}.home-guide-links{grid-template-columns:1fr 1fr;gap:26px 30px}.home-next{gap:30px}.article-layout{display:block}.toc{position:static;border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:30px}.toc ol{display:grid;grid-template-columns:1fr 1fr;gap:0 22px}.page-head h1{font-size:36px}.worksheet-layout{grid-template-columns:1fr;gap:28px}.article h2{font-size:27px}.library-results{gap:0 30px}}
@media(max-width:600px){.wrap{width:calc(100% - 36px)}.mast-inner{min-height:72px;gap:10px}.brand{font-size:20px}.nav .nav-action{display:none}.nav{gap:2px}.mobile-menu.open{padding:12px 18px}.home-hero{padding:38px 0 32px;gap:30px}.home-intro h1{font-size:46px;line-height:1.12}.home-intro .eyebrow{font-size:13px;margin-bottom:18px}.home-deck{font-size:18px;line-height:1.65;margin:20px 0 22px}.home-intro .button{font-size:15px;padding:13px 16px;gap:15px}.home-caption{font-size:14px}.home-paths h2{font-size:21px}.home-paths a{font-size:16px;padding:15px 0}.home-paths p{font-size:15px;margin-top:16px}.home-information{padding:28px 0 30px}.home-section-head{gap:16px;align-items:start}.home-section-head h2,.home-next h2{font-size:24px}.home-section-head a{font-size:14px}.home-guide-links{gap:25px 20px}.home-guide-links a{font-size:16px}.home-guide-links p{font-size:14px}.home-next{display:block;padding:30px 0}.home-next p{font-size:16px;margin:13px 0 22px}.home-next ol{font-size:16px;padding-left:23px}.home-contact{display:block;padding:28px 0 35px}.home-contact h2{font-size:23px;margin-bottom:21px}.footer{padding:25px 0}.footer .brand{font-size:18px}.footer nav{gap:4px 18px;font-size:14px}.footer-notice{font-size:13px;margin-top:20px}.page-head{padding:26px 0 30px}.breadcrumbs{font-size:13px;margin-bottom:20px;gap:7px}.page-head h1{font-size:32px;line-height:1.22;overflow-wrap:break-word}.page-head .eyebrow{font-size:13px}.page-deck{font-size:17px;line-height:1.75;margin-top:17px}.page-tools{align-items:start;gap:18px;font-size:13px}.review-stamp{font-size:13px}.page-tools button{font-size:13px;white-space:nowrap}.section{padding:32px 0}.article-layout{padding-top:28px;padding-bottom:35px}.toc{font-size:13px}.toc ol{grid-template-columns:1fr 1fr;gap:0 10px}.toc a{padding:7px 0 7px 10px}.article .answer-box{padding-left:18px}.article .answer-box p{font-size:18px;line-height:1.8}.article p{font-size:17px;line-height:1.8}.article h2{font-size:25px}.article ul{font-size:16px}.record-panel{padding:23px 18px;margin:30px 0}.record-panel h2{font-size:23px}.record-panel .button{font-size:15px}.article-faq summary,.article-faq p{font-size:16px}.related{padding:30px 0}.related h2{font-size:24px}.related-links{grid-template-columns:1fr}.related-links a{font-size:16px}.library-controls{display:block}.search-field{min-width:0;width:100%;margin-bottom:18px}.filter-select{width:100%}.library-results{grid-template-columns:1fr}.guide-result h2{font-size:22px}.guide-result p{font-size:16px}.enquiry-section{padding:28px 0}.enquiry-section h2{font-size:25px}.enquiry-fields{grid-template-columns:1fr}.worksheet{padding:23px 18px}.worksheet-actions{display:block}.worksheet-actions .button{width:100%;font-size:15px}.worksheet-actions .plain{margin-right:16px}.optional-preparation>summary{font-size:16px}.worksheet-aside h2{font-size:24px}.search-dialog-inner{padding:22px 18px}.dialog-head h2{font-size:23px}.dialog-result span{font-size:17px}.notfound h1{font-size:34px}}
@media(max-width:360px){.brand{font-size:18px}.home-intro h1{font-size:42px}.home-intro .button{font-size:14px;gap:12px;padding:13px}.home-guide-links{grid-template-columns:1fr}.home-section-head{display:block}.home-section-head a{display:inline-block;margin-top:12px}.toc ol{grid-template-columns:1fr}.page-head h1{font-size:29px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
@media print{body{background:#fff;color:#000;font-family:Arial,sans-serif}.masthead,.footer,.toc,.article-margin,.related,.page-tools button,.record-panel button,.reading-progress,.worksheet-actions,.home-contact{display:none!important}.wrap{width:100%}.page-head{padding:0 0 20px}.page-head h1{font-size:25pt}.article-layout{display:block;padding:25px 0}.article h2{font-size:18pt}.article p,.article li{font-size:11pt;line-height:1.6}.record-panel,.article-section{break-inside:avoid}.article-faq details>p{display:block}.page-tools{font-size:9pt}.worksheet{border:0;padding:0}.worksheet-layout{display:block;padding:10px 0}a{color:#000!important}.references a:after{content:' (' attr(href) ')';font-size:9pt}.optional-preparation{display:block}.page-head,.article{max-width:100%}}