:root{color-scheme:dark;--bg:#0d1116;--panel:#171d25;--input:#0d1219;--line:#2b3543;--text:#e9edf3;--muted:#9daec3;--green:#96dfc2;--yellow:#ffd074;--red:#ff9c91;--accent:#96dfc2;--shadow:0 12px 36px #0002}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 'Segoe UI',Arial,sans-serif}body.light{color-scheme:light;--bg:#f3f5f7;--panel:#fff;--input:#f7f9fb;--line:#d5dce5;--text:#202b38;--muted:#526477;--green:#16714f;--yellow:#946000;--red:#bc302d;--accent:#16714f;--shadow:0 12px 36px #22334408}header{display:flex;align-items:center;justify-content:space-between;padding:20px 32px;border-bottom:1px solid var(--line);gap:20px}.brand{display:flex;align-items:center;gap:22px}.brand img{width:135px;height:58px;object-fit:contain}.brand img{filter:invert(1)}.light .brand img{filter:none}.brand strong{font-size:23px}.brand small{display:block;color:var(--muted);font-size:12px}.top,.actions{display:flex;gap:8px;align-items:center}button,select,input,textarea{font:inherit;color:var(--text);background:var(--input);border:1px solid var(--line);border-radius:8px}button{padding:9px 14px;cursor:pointer}button:hover{border-color:var(--accent);color:var(--accent)}button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}select,input{padding:10px 12px;min-height:43px}textarea{display:block;resize:vertical;width:100%;padding:12px;font-family:Consolas,monospace;overflow-wrap:anywhere;min-height:62px}input,select{width:100%}input:focus,textarea:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px}[aria-invalid=true]{border-color:var(--red)}.top select{width:94px}.layout{display:grid;grid-template-columns:190px minmax(0,1fr);min-height:calc(100vh - 161px)}nav{padding:28px 18px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:7px}nav button,nav a{text-align:left;border-color:transparent;background:transparent;display:flex;gap:13px}nav button.active,nav a.active{background:var(--panel);border-color:var(--line);color:var(--accent)}.local{margin-top:30px;font-size:12px;color:var(--muted);display:flex;gap:8px;align-items:center}.dot{width:7px;height:7px;background:var(--green);border-radius:50%;flex-shrink:0}main{padding:30px 36px 48px;max-width:1500px;width:100%;margin:auto}.page-head{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:20px}h1{font-size:29px;margin:3px 0 5px;letter-spacing:-.6px}h2{font-size:17px;margin:0 0 15px}.page-head p{color:var(--muted);margin:0;max-width:750px}.eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:1.8px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:13px;padding:22px;box-shadow:var(--shadow);margin-bottom:14px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:15px}.panel-head h2{margin:0}.panel-head button{font-size:12px;padding:6px 12px}.badge,.direction{color:var(--muted);font-size:11px}.badge{border:1px solid var(--line);border-radius:5px;padding:3px 8px}.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}label{display:block;color:var(--muted);font-size:13px}label>span{display:block;margin-bottom:6px}label input,label select,label textarea{font-size:15px;color:var(--text)}.wide{grid-column:span 2}small{display:block;color:var(--muted);font-size:12px;margin-top:8px}details{margin-top:15px}summary{color:var(--muted);cursor:pointer;font-size:13px}details>.form-grid{margin-top:12px}.bridge{text-align:center;color:var(--accent);font-size:21px;line-height:22px;margin:-3px 0 10px}.status{padding:12px 17px;border:1px solid var(--line);border-radius:9px;margin-bottom:18px;font-size:13px}.status.good{color:var(--green);border-color:var(--green)}.status.warn{color:var(--yellow);border-color:var(--yellow)}.status.bad{color:var(--red);border-color:var(--red)}.status.neutral{color:var(--muted)}.result-meta{color:var(--green);font-size:12px;margin-top:9px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}.ai-row{display:grid;grid-template-columns:minmax(145px,1fr) minmax(0,1.2fr) 38px;gap:8px;margin-bottom:10px}.ai-row button{padding:6px}.big-result{font-size:25px;color:var(--green);padding:18px 0}.results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.result{padding:12px;border-bottom:1px solid var(--line)}.result span{display:block;font-size:12px;color:var(--muted)}.result strong{display:block;overflow-wrap:anywhere;font:15px/1.6 Consolas,monospace}.result pre{margin:0}pre{white-space:pre-wrap;overflow-wrap:anywhere;font:13px/1.6 Consolas,monospace}footer{border-top:1px solid var(--line);padding:15px 32px;display:flex;justify-content:space-between;gap:15px;font-size:11px;color:var(--muted)}footer div{display:flex;gap:18px}a{color:var(--accent)}dialog{max-width:760px;width:calc(100% - 30px);max-height:85vh;overflow:auto;background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:14px;padding:28px}dialog::backdrop{background:#0009}.legal{max-width:850px;margin:auto;padding:35px}.embed header,.embed footer{display:none}.embed .layout{min-height:100vh}[hidden]{display:none!important}@media(max-width:950px){header{padding:16px;flex-wrap:wrap}.layout{grid-template-columns:1fr}nav{flex-direction:row;flex-wrap:wrap;border-right:0;border-bottom:1px solid var(--line);padding:12px}.local{margin:8px}main{padding:24px 16px}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.two-col{grid-template-columns:1fr}.page-head{align-items:flex-start}footer{padding:16px;flex-wrap:wrap}}@media(max-width:550px){.brand img{width:100px}.brand strong{font-size:20px}.top{flex-wrap:wrap}.form-grid{grid-template-columns:1fr}.wide{grid-column:auto}.page-head{flex-direction:column}.panel{padding:17px}.direction{display:none}.results{grid-template-columns:1fr}h1{font-size:25px}}

.fixed-input{display:flex;align-items:center;gap:12px}.fixed-input>span{color:var(--accent);font:14px Consolas,monospace;white-space:nowrap}.fixed-input input{min-width:0}#identifierType{margin-bottom:16px}

nav a{padding:9px 14px;border:1px solid transparent;border-radius:8px;text-decoration:none;color:var(--text)}nav a:hover{color:var(--accent);border-color:var(--line)}.seo{margin-top:26px}.seo p{color:var(--muted);max-width:900px;font-size:13px}

.language-picker{position:relative}.language-trigger{display:flex;align-items:center;justify-content:space-between;gap:8px;height:43px;min-width:70px;padding:8px 10px}.flag{width:28px;height:19px;object-fit:cover;border-radius:2px;border:1px solid #8884}.language-menu{position:absolute;right:0;top:calc(100% + 5px);background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:5px;box-shadow:var(--shadow);z-index:30;min-width:70px}.language-menu button{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;border:0;border-radius:5px;background:transparent}.language-menu button[aria-checked=true]{color:var(--accent)}

.flow-good{color:var(--accent,#8edbb8)}.flow-bad{color:#ef8c7c}.flow-neutral{opacity:.5}.step-hint{display:block;margin-top:.6rem}

.bridge{height:44px;display:flex;align-items:center;justify-content:center;line-height:1;margin:0 0 12px;color:var(--muted)}.bridge::before{content:"";display:block;width:30px;height:38px;background:currentColor;clip-path:polygon(32% 0,68% 0,68% 57%,100% 57%,50% 100%,0 57%,32% 57%)}.bridge[data-direction=up]::before{transform:rotate(180deg)}.bridge.flow-good{color:var(--green)}.bridge.flow-bad,.step-hint.flow-bad{color:var(--red)}

/* Compact working layout: all fields and instructions remain visible. */
header{padding:12px 26px}.brand img{height:44px;width:120px}.brand strong{font-size:21px}main{padding:20px 28px 28px}.page-head{margin-bottom:12px}h1{font-size:26px}.page-head p{font-size:13px}.status{padding:8px 12px;margin-bottom:12px}.panel{padding:12px 16px;margin-bottom:8px;border-radius:10px}.panel-head{margin-bottom:8px}.form-grid{gap:9px 14px}.epc-settings{grid-template-columns:minmax(210px,1.6fr) minmax(145px,1fr) minmax(145px,1fr) minmax(160px,1.1fr)}label>span{margin-bottom:3px}input,select{min-height:36px;padding:6px 10px}textarea{min-height:38px;padding:7px 10px;line-height:1.4}small{margin-top:5px;line-height:1.35}details{margin-top:8px}.bridge{height:28px;margin:0 0 6px}.bridge::before{width:24px;height:26px}.step-hint{margin-top:4px}.result-meta{margin-top:5px}#epc .panel-head h2{font-size:15px}#epc .panel-head button{padding:3px 10px}.seo{margin-top:20px}
@media(max-width:1150px){.epc-settings{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:950px){main{padding:16px}header{padding:12px 16px}}@media(max-width:550px){.epc-settings{grid-template-columns:1fr}.panel{padding:12px}header{gap:10px}}

#identifierType{margin-bottom:0}.key-section{border-top:1px solid var(--line);margin-top:10px;padding-top:10px}#epc .panel>small{display:inline}#epc .panel>.step-hint{margin-left:10px}#epc .panel>.step-hint.flow-bad{display:block;margin-left:0}#epc textarea{min-height:36px}#epc .panel-head{margin-bottom:6px}#epc .key-section details{margin-top:5px}

#epc .panel.step-complete{border-color:var(--green)}#epc .panel.step-incomplete{border-color:var(--red)}#epc .key-section.step-complete{border-top-color:var(--green)}#epc .key-section.step-incomplete{border-top-color:var(--red)}#epc .field-complete{border-color:var(--green)}#epc .field-incomplete{border-color:var(--red)}

/* Focus is independent of validation status. */
input:focus,textarea:focus,select:focus{outline:2px solid var(--muted);outline-offset:2px}
#epc>.panel.step-complete,#epc>.panel.step-incomplete{border-width:3px}
main{margin:0 auto;align-self:start}

.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px!important;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.key-section>.form-grid>.wide .fixed-input{margin-top:22.5px}.bridge[data-direction=both]{color:var(--muted);opacity:1}.bridge[data-direction=both]::before{width:24px;height:28px;clip-path:polygon(50% 0,100% 30%,68% 30%,68% 70%,100% 70%,50% 100%,0 70%,32% 70%,32% 30%,0 30%)}
@media(max-width:550px){.key-section>.form-grid>.wide .fixed-input{margin-top:0}}

.key-section>.form-grid{align-items:end}.key-section>.form-grid>.wide .fixed-input{margin-top:0}#keyHint{margin:0 0 3px;font-size:13px;line-height:1.5}

.key-section>.form-grid>.wide{display:grid;grid-template-columns:auto minmax(0,1fr);column-gap:12px;align-items:center}.key-section>.form-grid>.wide .fixed-input{display:contents}.key-section>.form-grid>.wide #keyHint{grid-column:2;grid-row:1}.key-section>.form-grid>.wide #keyAffix{grid-column:1;grid-row:2;color:var(--accent);font:14px Consolas,monospace;white-space:nowrap}.key-section>.form-grid>.wide #key{grid-column:2;grid-row:2;min-width:0}
@media(max-width:950px){.layout{grid-template-rows:auto 1fr}nav{align-self:start;align-items:center;align-content:start}nav a,nav button{align-self:center;min-height:40px}.local{margin:6px 8px;align-self:center}}

.tool-icon{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}nav a,nav button{align-items:center}

.tid-section+.tid-section{border-top:1px solid var(--line);margin-top:16px;padding-top:14px}.tid-section h3{font-size:16px;margin:0 0 6px}.tid-note{font-size:12px;color:var(--muted);margin:4px 0 8px}.tid-section .result{padding:8px 10px}.tid-section .results{gap:5px 14px}
#nfc>.panel{padding:20px;margin-bottom:20px}#nfc .form-grid{gap:16px 20px}#nfcForm:not(:empty){margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}#nfc .panel-head{margin-top:24px;margin-bottom:12px}#nfc .panel-head h3{margin:0}#nfcResults,#nfcUidResults{margin-top:18px}#nfc small{margin-top:12px}#nfcLanguage:not([hidden]){margin-top:10px}

nav a,nav button{display:grid;grid-template-columns:24px minmax(0,1fr);column-gap:12px;align-items:center}.menu-icon,nav .tool-icon{width:24px;justify-self:center;text-align:center}.menu-icon{line-height:24px}

.footer-link{border:0;background:none;padding:0;font:inherit;color:var(--accent);text-decoration:underline}#rfid .panel{margin-bottom:20px;padding:20px}#rfid .form-grid{gap:14px 20px}#rfid .results{margin-top:12px}#rfid small{margin-top:12px}

.legal-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:20px}