/* AddressLab: dense, accessible workspaces with one shared visual system. */
:root{--r-lg:16px;--r-md:10px}
[data-theme=light]{--bg:#f3f5f9;--surface:#fff;--surface-2:#f7f9fc;--text:#172337;--dim:#52627a;--faint:#65748b;--border:#dce3ed;--accent:#235be7;--accent-soft:#edf2ff;--accent-line:#bbcafa;--paper:#fff;--paper-ink:#172337;--paper-dim:#52627a;--paper-line:#dce3ed;--sh:0 8px 30px -20px #163a76}
[data-theme=dark]{--faint:#9caabc;--paper:#181e28;--paper-ink:#edf1f6;--paper-dim:#a6b3c6;--paper-line:#364355}
body{font-size:14px;line-height:1.6}
button,input,select{font:inherit}
button,select,a{touch-action:manipulation}
[hidden]{display:none!important}
button{cursor:pointer}
button:disabled{cursor:wait;opacity:.6}
.page{max-width:1280px;padding:0 28px 48px;overflow-x:visible}
.sitenav{background:var(--surface);backdrop-filter:none;-webkit-backdrop-filter:none}
.sitenav-in{max-width:1280px;padding:14px 28px;gap:18px}
.brand{font-size:16px;letter-spacing:-.03em}
.brand .logo,.brand .logo img{width:29px;height:29px}
.navlinks a{padding:8px 10px;font-size:12px}
.tape,.ticker,.route,.hot,.feed,.cutline,.barcode,.fbrand .fb-social{display:none!important}
.tool-directory{display:flex;align-items:center;gap:16px;padding:18px 0 0;min-width:0}
.directory-label,.step-label{font:700 10px/1.5 var(--mono);letter-spacing:.11em;color:var(--faint)}
.tool-jump{max-width:245px;min-height:36px;padding:5px 30px 5px 10px;border:1px solid var(--border);border-radius:7px;color:var(--text);background:var(--surface)}
.local-badge{margin-left:auto;display:flex;align-items:center;gap:7px;font-size:11px;color:var(--dim)}
.local-badge i{height:6px;width:6px;background:var(--accent);border-radius:50%}
.masthead,.focused-entry .masthead{display:block;padding:28px 0 24px;animation:none}
.masthead h1,.focused-entry .masthead h1{font-size:clamp(29px,3.4vw,43px);line-height:1.18;letter-spacing:-.045em;color:var(--text);background:none;animation:none;margin:9px 0 14px;max-width:1000px}
.masthead h1 br{display:none}
.masthead h1 .line2,.focused-entry .masthead h1 .line2{color:var(--accent);-webkit-text-stroke:0;margin-left:5px}
.kicker{font:600 10px/1.6 var(--mono);letter-spacing:.13em;color:var(--dim)}
.meta,.focused-entry .meta{display:block;font:14px/1.7 var(--sans);max-width:760px;color:var(--dim)}
.meta span{display:block}.meta span+span{font-size:12px;margin-top:2px}
.tbtn{position:absolute;right:0;top:28px;min-height:36px}
.address-workbench,.fixture-app{display:grid;grid-template-columns:minmax(290px,.76fr) minmax(0,1.4fr);background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh);overflow:hidden;scroll-margin-top:85px}
.workbench-controls,.workbench-preview,.fixture-controls,.fixture-results{padding:26px;min-width:0}
.workbench-preview,.fixture-results{border-left:1px solid var(--border);background:var(--surface-2)}
.preview-heading{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-bottom:20px}
.preview-heading h2{font-size:15px;line-height:1.5;letter-spacing:-.02em;margin:5px 0 0}
.preview-heading p{font-size:12px;margin:0;color:var(--dim)}
.preview-heading>.step-label{display:none}
.address-workbench .deck{padding:0;margin:0;background:none;border:0;box-shadow:none}
.address-workbench .deck-cap{font:700 13px/1.5 var(--sans);letter-spacing:0;margin:0 0 5px;color:var(--text)}
.address-workbench .deck-cap .dot{display:none}
.address-workbench .hint-line{font-size:12px;color:var(--dim);margin:0 0 18px}
.bins{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:0 0 18px;overflow:visible}
.bins button{padding:12px 4px;min-width:0;min-height:60px;border-radius:8px;background:var(--surface);box-shadow:none;border:1px solid var(--border)}
.bins button[aria-pressed=true]{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
.bins button .code{font-size:12px}.bins button .n{display:block;font-size:10px;margin-top:3px}
.address-workbench .row2{display:grid;grid-template-columns:1fr;gap:16px;margin-bottom:18px}
.address-workbench .lbl{font:600 12px/1.5 var(--sans);letter-spacing:0;margin-bottom:6px;color:var(--text)}
.city,.state-sel{width:100%;min-height:42px;padding:9px 11px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text)}
.tickets{display:flex;gap:8px}.tickets button{flex:1;min-height:40px;padding:8px 12px;border-radius:8px}
.opts{gap:12px;display:flex;flex-wrap:wrap}.opt{font-size:12px;gap:7px;align-items:center}.opt small{font-size:11px}
.address-workbench .fineprint,.workbench-actions .belt{display:none}
.go,.mint,.fixture-primary{font:600 14px/1.5 var(--sans);min-height:46px;border:0;border-radius:9px;box-shadow:none;letter-spacing:0;background:var(--accent);color:var(--accent-ink);width:100%;margin:18px 0 0;padding:12px 16px}
.go::before,.go::after{display:none}
.workbench-actions .go{border:1px solid var(--border);color:var(--text);background:var(--surface);margin-top:10px}
.workbench-controls:not(:has(.deck)) .workbench-actions .go{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.quick-note{font-size:11px;line-height:1.6;color:var(--dim);margin:10px 0 0}
.country-symbol{font:750 66px/1 var(--sans);letter-spacing:-.08em;color:var(--accent);margin:24px 0}
.country-symbol span{display:block;font:600 10px/1.5 var(--mono);letter-spacing:.12em;color:var(--dim);margin-top:7px}
.workbench-intro h2{font-size:21px;letter-spacing:-.03em;margin:0 0 8px}.workbench-intro p{font-size:12px;color:var(--dim);margin:0 0 16px}
.scope-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px;padding:11px 0;border-top:1px solid var(--border);font-size:11px;color:var(--dim)}
.scope-row b{font-weight:500;color:var(--text)}
.address-workbench #out{display:grid;grid-template-columns:1fr;gap:14px;margin:0}
.address-workbench .tag,.address-workbench .tag:first-of-type,.address-workbench .tag:last-child{border:1px solid var(--paper-line);background:var(--paper);border-radius:10px;padding:20px;mask:none;-webkit-mask:none;box-shadow:none;animation:none}
.tag-in{padding:0!important}.tag::before,.tag::after{display:none}
.tag-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:0 0 16px;flex-wrap:wrap}
.avion{font:600 10px/1.4 var(--mono);letter-spacing:.07em;color:var(--paper-dim)}
.copy-primary,.mini-btn{font:600 11px/1.5 var(--sans);padding:9px 12px;min-height:38px;border:1px solid var(--paper-line);border-radius:7px;letter-spacing:0}
.copy-primary{color:var(--accent);background:var(--accent-soft);border-color:var(--accent-line)}
.fields{display:block}.fld{display:grid;grid-template-columns:105px minmax(0,1fr) auto;align-items:center;gap:12px;border:0;border-bottom:1px solid var(--paper-line);border-radius:0!important;padding:11px 0;min-height:44px;min-width:0;font-size:13px;background:transparent}
.fld .k{font:500 11px/1.5 var(--sans);letter-spacing:0;white-space:normal;color:var(--paper-dim)}
.fld .v{overflow-wrap:anywhere;font-weight:600}.fld .cp,.fld-inner .cp{opacity:1;font:500 10px/1.5 var(--sans);color:var(--accent)}
.fld-inner{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;min-width:0}.fld-inner .v{white-space:normal;overflow-wrap:anywhere}
.state-row .fmt{grid-column:2;justify-self:start;margin:0;font-size:10px}
.sample-details{margin-top:12px}.sample-details summary{min-height:40px;padding:10px 0;font:600 11px/1.6 var(--sans);cursor:pointer;color:var(--paper-dim)}
.tag-foot{border:0;padding:12px 0 0;margin:0}.tag-actions{display:flex;flex-wrap:wrap;gap:8px;width:100%}.tag-actions .mini-btn{flex:1;justify-content:center}
.btn-verify{width:auto;font-size:11px;min-height:36px;padding:9px 12px;margin-top:16px;border:1px solid var(--paper-line);color:var(--paper-dim)}
.address-workbench .empty-ticket{min-height:290px;margin:0;background:var(--surface);border:1px dashed var(--border-2);border-radius:10px;padding:40px 20px;animation:none}
.empty-ticket p{font-size:14px!important;color:var(--text)}.empty-ticket svg{width:42px;height:42px;margin-bottom:16px}
.slot{display:none}.sample-disclosure{font:11px/1.8 var(--sans);margin:18px 0 0;color:var(--dim)}
.sample-disclosure b{font-weight:600;color:var(--text)}
.provenance-strip{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin:16px 0 32px;color:var(--dim);font-size:11px}
.provenance-strip>span{display:flex;align-items:center;gap:7px}.provenance-strip>span:last-child{margin-left:auto}
.key-dot{width:7px;height:7px;border-radius:2px;display:inline-block;flex:0 0 auto}.key-dot.public{background:var(--accent)}.key-dot.synthetic{border:1px solid var(--dim);background:transparent}
.fixture-controls h2{font-size:23px;line-height:1.25;letter-spacing:-.04em;margin:13px 0 9px}.control-lead{font-size:12px;color:var(--dim);margin:0 0 24px}
.fixture-controls label{display:flex;justify-content:space-between;gap:5px;font-size:12px;font-weight:600;margin:18px 0 7px}.fixture-controls label span{font-weight:400;font-size:10px;color:var(--dim)}
.fixture-controls input,.fixture-controls select{width:100%;min-width:0;min-height:43px;border:1px solid var(--border);border-radius:8px;padding:10px 11px;color:var(--text);background:var(--surface);font-size:12px}
.fixture-controls input{font-family:var(--mono)}
.fixture-input-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.input-help{font-size:10px;color:var(--dim);margin:7px 0 0}
.fixture-primary{display:flex;align-items:center;justify-content:space-between;margin-top:23px;text-align:left;font-size:13px}
.fixture-secondary{width:100%;border:1px solid var(--border);border-radius:8px;min-height:42px;margin-top:9px;padding:9px 10px;background:var(--surface);color:var(--text);font-size:12px;font-weight:600}
.fixture-status{font-size:11px;line-height:1.7;color:var(--dim);overflow-wrap:anywhere;min-height:36px;margin:13px 0 0}.fixture-status.error{color:#c73636}
.local-note{border-top:1px solid var(--border);padding-top:20px;display:flex;gap:12px;margin-top:20px;font-size:11px}.local-note>span{font-size:25px;color:var(--accent)}.local-note b{font-size:11px;font-weight:600}.local-note p{color:var(--dim);line-height:1.7;margin:4px 0 0}
.test-badge{border:1px solid var(--border-2);font:600 9px/1.5 var(--mono);padding:4px 7px;border-radius:4px;color:var(--dim)}
.fixture-empty{text-align:center;border:1px dashed var(--border-2);border-radius:10px;padding:45px 25px;min-height:425px;background:var(--surface)}
.envelope-visual{position:relative;border:1px solid var(--border);border-radius:8px;max-width:290px;height:152px;margin:0 auto 32px;padding:28px 30px;text-align:left;box-shadow:8px 8px 0 var(--accent-soft);background:var(--surface)}
.envelope-visual:after{content:'GB';position:absolute;right:18px;top:16px;padding:5px 7px;border:1px dashed var(--accent-line);color:var(--accent);font:600 11px var(--mono)}
.envelope-visual>span{font:600 9px var(--mono);color:var(--faint)}.envelope-visual i{display:block;width:58%;height:5px;border-radius:3px;background:var(--border);margin:9px 0}.envelope-visual i+i{width:42%}
.envelope-visual strong{font:600 10px var(--mono);color:var(--accent);display:block;margin-top:17px}.envelope-visual em{font-style:normal;color:var(--dim);margin-left:12px}
.fixture-empty h3{font-size:16px;letter-spacing:-.025em;margin:0 0 9px}.fixture-empty p{max-width:370px;margin:0 auto;font-size:12px;color:var(--dim)}
.empty-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:22px}.empty-tags span{border:1px solid var(--border);border-radius:5px;padding:5px 8px;color:var(--dim);font-size:10px}
.fixture-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:20px}
.fixture-card-top{display:flex;justify-content:space-between;gap:8px;align-items:center;margin:0 0 8px}.fixture-card-top>span{font:600 9px/1.5 var(--mono);letter-spacing:.1em;color:var(--dim)}.fixture-card-top b{display:inline-block;padding:3px 5px;border:1px solid var(--border);border-radius:4px;margin-left:6px}
.fixture-card-top button{border:1px solid var(--accent-line);color:var(--accent);background:var(--accent-soft);padding:8px 10px;min-height:36px;border-radius:6px;font-size:11px;font-weight:600}
.fixture-field{display:grid;grid-template-columns:110px minmax(0,1fr) 105px;gap:10px;text-align:left;align-items:center;width:100%;border:0;border-bottom:1px solid var(--border);background:none;color:var(--text);padding:12px 0;min-height:44px}
.fixture-field:hover{background:var(--accent-soft)}.fixture-key{font-size:11px;color:var(--dim)}.fixture-field strong{font-size:13px;font-weight:600;overflow-wrap:anywhere}.fixture-field small{font-size:9px;color:var(--dim);text-align:right}
.postcode-anatomy{display:flex;gap:24px;align-items:center;padding-top:20px}.postcode-anatomy small{display:block;font:600 8px/1.5 var(--mono);letter-spacing:.05em;color:var(--dim)}.postcode-anatomy strong{font:650 30px/1.5 var(--mono);letter-spacing:.03em;color:var(--accent)}.postcode-anatomy>div:last-child strong{color:var(--text)}.postcode-anatomy>span{color:var(--border-2);font-size:30px}
.fixture-export{display:flex;gap:8px;margin:14px 0 20px}.fixture-export button{border:1px solid var(--border);background:var(--surface);color:var(--text);min-height:38px;border-radius:7px;font-size:11px;font-weight:600;padding:9px 14px}.fixture-export button:last-child{margin-left:auto}
.fixture-viewbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.fixture-viewbar>span{font-size:10px;color:var(--dim)}.fixture-viewbar button{border:1px solid transparent;background:transparent;color:var(--dim);border-radius:6px;padding:6px 12px;min-height:32px;font-size:11px}.fixture-viewbar button[aria-pressed=true]{border-color:var(--border);color:var(--text);background:var(--surface)}
.fixture-table-wrap{max-height:260px;overflow:auto;border:1px solid var(--border);border-radius:8px;background:var(--surface)}.fixture-table-wrap table{width:100%;border-collapse:collapse;white-space:nowrap;font-size:11px;text-align:left}.fixture-table-wrap th{position:sticky;top:0;background:var(--surface-2);font-size:10px;color:var(--dim);font-weight:600}.fixture-table-wrap td,.fixture-table-wrap th{padding:9px 12px;border-bottom:1px solid var(--border)}.fixture-table-wrap td:last-child{font-family:var(--mono)}
#fixture-json{max-height:260px;overflow:auto;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text);font:11px/1.8 var(--mono);padding:15px;white-space:pre;margin:0}
.task-reference{margin:36px 0}.reference-intro h2{font-size:26px;letter-spacing:-.04em;line-height:1.3;margin:10px 0}.reference-intro p{font-size:13px;color:var(--dim);margin:0 0 20px}.reference-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.reference-cards article{padding:22px;border:1px solid var(--border);border-radius:12px;background:var(--surface)}.reference-num{display:inline-block;font:600 11px var(--mono);color:var(--accent);background:var(--accent-soft);border-radius:6px;padding:5px 8px}.reference-cards h3{font-size:15px;letter-spacing:-.02em;margin:15px 0 7px}.reference-cards p{font-size:12px;color:var(--dim);margin:0;line-height:1.8}.reference-cards a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.prose{padding:26px;border-radius:12px;animation:none;box-shadow:none}.prose h2{font-size:19px;letter-spacing:-.025em}.prose p,.prose li{font-size:13px;line-height:1.85}.prose table{display:block;overflow-x:auto;max-width:100%;font-size:12px}
.seo-sec.pre,.blog-sec.pre,.faq-item.pre{opacity:1;transform:none;transition:none}
.faq-item{border-radius:9px;background:var(--surface);margin-bottom:8px}.faq-q{font-size:13px;padding:16px}.faq-a p{font-size:12px;line-height:1.8}
.cta-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:none;padding:24px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;color:var(--text)}.cta-card::before,.cta-card::after,.cta-kick,.cta-sub{display:none}.cta-title{font-size:18px;line-height:1.4;margin:0;color:var(--text);letter-spacing:-.025em}.cta-btn{background:var(--accent);color:var(--accent-ink);font-size:12px;border-radius:8px;padding:11px 16px}
footer{margin-top:40px;padding-top:28px;border-top:1px solid var(--border)}.fbrand{display:flex;gap:16px;align-items:baseline;margin-bottom:28px}.fb-name{font-size:15px;letter-spacing:-.02em}.fb-blurb{font-size:11px;max-width:680px;color:var(--dim)}.fcols{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}.fcols h4{font:600 10px var(--mono);letter-spacing:.05em;color:var(--dim)}.fcols a{font-size:12px}.fbar,.flegal{font-size:10px;color:var(--dim)}
@media(min-width:1100px){.fixture-app{grid-template-columns:350px minmax(0,1fr)}.fixture-controls{padding:28px}.fixture-results{padding:28px}.uk-entry .masthead h1{font-size:45px}}
@media(max-width:900px){.sitenav-in{gap:10px}.brand .bname{font-size:13px}.navlinks a{font-size:11px;padding:7px}.fixture-field{grid-template-columns:95px minmax(0,1fr)}.fixture-field small{grid-column:2;text-align:left;margin-top:-7px}}
@media(max-width:780px){.page{padding:0 18px 34px}.sitenav-in{padding:12px 18px}.address-workbench,.fixture-app{grid-template-columns:minmax(0,1fr)}.workbench-preview,.fixture-results{border-left:0;border-top:1px solid var(--border);scroll-margin-top:80px}.workbench-controls,.workbench-preview,.fixture-controls,.fixture-results{padding:22px}.reference-cards{grid-template-columns:1fr}.reference-cards article{padding:20px}.fixture-empty{min-height:330px;padding:30px 18px}.fixture-controls .local-note{margin-top:12px;padding-top:14px}.fixture-status{min-height:0}.provenance-strip{gap:10px 18px;margin-bottom:26px}.provenance-strip>span:last-child{margin-left:0;flex-basis:100%}.tool-directory{gap:10px}.directory-label{display:none}.local-badge{font-size:10px}.tool-jump{max-width:60%;font-size:11px}.masthead,.focused-entry .masthead{padding:24px 0 20px}.masthead h1,.focused-entry .masthead h1{font-size:32px;max-width:85%;line-height:1.22}.meta{font-size:13px}.tbtn{top:24px}.prose{padding:22px}.fbrand{display:block}.fb-blurb{display:block;margin-top:8px}.fcols{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}}
@media(max-width:480px){.page{padding-left:14px;padding-right:14px}.sitenav-in{padding:11px 14px;gap:8px}.brand .bname{display:none}.navright{gap:4px}.navlinks a{padding:6px 8px}.more-btn{padding:8px;font-size:11px}.lang-sw{font-size:11px;max-width:58px}.saved-link{font-size:11px}.masthead h1,.focused-entry .masthead h1{font-size:29px}.meta,.focused-entry .meta{font-size:12px}.meta span+span{font-size:11px}.workbench-controls,.workbench-preview,.fixture-controls,.fixture-results{padding:18px}.fixture-controls h2{font-size:22px}.fixture-card{padding:16px}.fixture-field{grid-template-columns:90px minmax(0,1fr);gap:8px}.fixture-field strong{font-size:12px}.fixture-card-top>span{font-size:8px;letter-spacing:0}.fixture-card-top b{margin-left:3px}.fixture-card-top button{font-size:10px}.postcode-anatomy{gap:15px}.postcode-anatomy small{font-size:7px}.postcode-anatomy strong{font-size:27px}.fixture-export button{padding:8px 11px}.preview-heading h2{font-size:13px}.fixture-empty{min-height:320px;padding:28px 15px}.empty-tags{margin-top:15px}.fixture-empty h3{font-size:14px}.envelope-visual{height:135px;padding:22px 25px;margin-bottom:26px}.fixture-input-row{gap:10px}.fixture-controls label span{font-size:9px}.address-workbench .tag{padding:16px 12px}.fld{grid-template-columns:70px minmax(0,1fr) auto;gap:6px;font-size:12px}.fld .k{font-size:10px}.scope-row{font-size:10px}.local-badge{max-width:36%;text-align:right;font-size:9px}.reference-intro h2{font-size:23px}.cta-title{font-size:17px}.prose table{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
/* Keep the controls within reach on ordinary laptop displays. */
.masthead,.focused-entry .masthead{position:relative;padding:20px 0 20px}
.masthead h1,.focused-entry .masthead h1{margin:6px 0 9px;font-size:clamp(29px,3vw,38px)}
.uk-entry .masthead h1{font-size:38px}
.kicker{margin-bottom:5px}.meta{margin-top:8px}
.tbtn{right:0;top:20px;width:36px;height:36px}
.fixture-controls h2{font-size:21px;margin:10px 0 7px}
.control-lead{margin-bottom:16px;line-height:1.65}
.fixture-controls label{margin-top:13px}
.fixture-controls input,.fixture-controls select{min-height:40px;padding:9px 10px}
.fixture-primary{margin-top:18px}.fixture-status{min-height:0}
.fixture-controls .local-note{margin-top:14px;padding-top:14px}
.fbar .stat{display:none}
.country-context{display:flex;align-items:center;gap:15px;margin-bottom:16px}
.country-context .country-symbol{font-size:30px;line-height:1;margin:0;padding:13px 10px;letter-spacing:-.05em;min-width:62px;text-align:center;border:1px solid var(--accent-line);border-radius:10px;background:var(--accent-soft)}
.country-context h2{font-size:19px;margin:4px 0 0}
@media(max-width:780px){.workbench-intro .scope-row{display:none}.country-context{margin-bottom:12px}.workbench-intro p{margin-bottom:8px}.workbench-controls:not(:has(.deck)) .workbench-actions .go{margin-top:8px}.workbench-controls:not(:has(.deck)) .quick-note{margin-top:8px;font-size:10px}}
@media(max-width:480px){.uk-entry .masthead h1{font-size:29px}.masthead h1{max-width:87%}.tbtn{top:20px}}