@font-face{font-family:"Atkinson Hyperlegible Next";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/atkinson-hyperlegible-next-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Atkinson Hyperlegible Next";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/atkinson-hyperlegible-next-latin-ext-400-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Atkinson Hyperlegible Next";font-style:normal;font-weight:700;font-display:swap;src:url(fonts/atkinson-hyperlegible-next-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Atkinson Hyperlegible Next";font-style:normal;font-weight:700;font-display:swap;src:url(fonts/atkinson-hyperlegible-next-latin-ext-700-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"B612 Mono";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/b612-mono-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"B612 Mono";font-style:normal;font-weight:700;font-display:swap;src:url(fonts/b612-mono-latin-700-normal.woff2) format("woff2")}

:root{
  --paper:#EEF2EE;          /* security-paper grey-green */
  --surface:#F8FAF7;
  --band:#E2E9E3;           /* MRZ band on the data page */
  --ink:#152238;            /* passport navy */
  --ink-soft:#4A5668;
  --rule:#C7D0C9;
  --accent:#3A3D9E;         /* intaglio blue-violet */
  --ok:#1D6B45;
  --bad:#AE2318;
  --bad-bg:#F8DDD9;
  /* field families */
  --f-code:#7A6A2E; --f-country:#2F6F8F; --f-name:#3A3D9E; --f-number:#8A4B1F;
  --f-date:#6B2F7A; --f-sex:#3F6B2A; --f-check:#152238; --f-opt:#7B8494;
  --mono:"B612 Mono",ui-monospace,"Cascadia Mono","Consolas",monospace;
  --sans:"Atkinson Hyperlegible Next","Segoe UI",system-ui,-apple-system,sans-serif;
  color-scheme:light;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){
  :root{
    --paper:#10161F; --surface:#172030; --band:#1C2738; --ink:#E4E9F0; --ink-soft:#A3AEBF;
    --rule:#2C384B; --accent:#9EA3FF; --ok:#6CCB97; --bad:#FF8A7E; --bad-bg:#4A1F1C;
    --f-code:#D6C27A; --f-country:#7CC3E3; --f-name:#A9ACFF; --f-number:#E9A06C;
    --f-date:#D79BE6; --f-sex:#A6D98C; --f-check:#E4E9F0; --f-opt:#8B95A7;
    color-scheme:dark;
  }
}
*,*::before,*::after{box-sizing:inherit}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:1.0625rem/1.6 var(--sans)}
a{color:var(--accent);text-underline-offset:.18em}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

.wrap{max-width:54rem;margin:0 auto;padding:0 1.25rem}
.site-header{border-bottom:1px solid var(--rule)}
.site-header .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem 1.5rem;padding-top:.9rem;padding-bottom:.9rem}
.brand{font:700 1.05rem/1 var(--mono);color:var(--ink);text-decoration:none;letter-spacing:.04em}
.brand span{color:var(--ink-soft)}
.site-nav{display:flex;flex-wrap:wrap;gap:.25rem 1.1rem;margin-left:auto;font-size:.95rem}
.site-nav a{color:var(--ink-soft);text-decoration:none;padding:.2rem 0;border-bottom:2px solid transparent}
.site-nav a[aria-current=page]{color:var(--ink);border-bottom-color:var(--ink)}
.site-nav a:hover{color:var(--ink)}
.lang{font-family:var(--mono);font-size:.85rem}

main{padding:2.25rem 0 3rem}
h1{font-size:clamp(1.9rem,4.5vw,2.6rem);line-height:1.12;margin:0 0 .5rem;letter-spacing:-.01em;max-width:22ch}
.lede{color:var(--ink-soft);margin:0 0 1.75rem;max-width:60ch}
h2{font-size:1.4rem;line-height:1.25;margin:2.75rem 0 .75rem}
h3{font-size:1.1rem;margin:1.75rem 0 .4rem}
p,li{max-width:68ch}

/* ---------- the MRZ band: the one loud element ---------- */
.band{
  position:relative;background:var(--band);border-radius:6px;padding:1rem 1rem .85rem;
  background-image:
    repeating-radial-gradient(circle at 12% 140%, transparent 0 9px, color-mix(in srgb,var(--ink) 4%,transparent) 9px 10px),
    repeating-radial-gradient(circle at 88% -40%, transparent 0 11px, color-mix(in srgb,var(--accent) 5%,transparent) 11px 12px);
}
.band label{display:block;font-size:.9rem;color:var(--ink-soft);margin-bottom:.4rem}
.mrz-input{
  display:block;width:100%;min-height:7.2em;resize:vertical;border:1px solid var(--rule);border-radius:4px;
  background:var(--surface);color:var(--ink);padding:.6rem .7rem;
  font:400 clamp(.78rem,2.45vw,1.15rem)/1.75 var(--mono);letter-spacing:.06em;white-space:pre;overflow-x:auto;
  text-transform:uppercase;
}
.mrz-input::placeholder{color:var(--f-opt);opacity:.8}
.band-actions{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.7rem}
.btn{font:inherit;font-size:.95rem;border-radius:4px;padding:.45rem .9rem;cursor:pointer;border:1px solid var(--ink);background:var(--ink);color:var(--paper)}
.btn.secondary{background:transparent;color:var(--ink);border-color:var(--rule)}
.btn:hover{filter:brightness(1.12)}
.btn.secondary:hover{border-color:var(--ink)}
.privacy-note{font-size:.88rem;color:var(--ink-soft);margin:.7rem 0 0}

/* annotated rendering */
.annotated{margin-top:1.4rem;overflow-x:auto;padding-bottom:.25rem}
.mrz-line{display:block;font:400 clamp(.7rem,2.3vw,1.12rem)/2.1 var(--mono);letter-spacing:.06em;white-space:pre}
.mrz-line .c{display:inline-block;border-bottom:3px solid var(--fc,transparent);transition:background-color .12s}
.mrz-line .c.err{background:var(--bad-bg);color:var(--bad);font-weight:700}
.mrz-line .c.hl{background:color-mix(in srgb,var(--fc) 22%,transparent)}
.c[data-fam=code]{--fc:var(--f-code)} .c[data-fam=country]{--fc:var(--f-country)} .c[data-fam=name]{--fc:var(--f-name)}
.c[data-fam=alnum]{--fc:var(--f-number)} .c[data-fam=birth],.c[data-fam=expiry]{--fc:var(--f-date)}
.c[data-fam=sex]{--fc:var(--f-sex)} .c[data-fam=check]{--fc:var(--f-check)} .c[data-fam=opt]{--fc:var(--f-opt)}

.verdict{display:flex;flex-wrap:wrap;align-items:baseline;gap:.2rem .6rem;margin:1.5rem 0 .25rem;font-size:1.15rem;font-weight:700}
.verdict.ok{color:var(--ok)} .verdict.bad{color:var(--bad)}
.verdict small{font-weight:400;color:var(--ink-soft);font-size:.95rem}
.issues{margin:.5rem 0 0;padding-left:1.1rem;color:var(--bad)}
.issues li{margin:.2rem 0}

.table-wrap{overflow-x:auto;margin-top:1rem}
table{border-collapse:collapse;width:100%;font-size:.97rem}
th,td{text-align:left;padding:.5rem .6rem;border-bottom:1px solid var(--rule);vertical-align:top}
thead th{font-weight:700;color:var(--ink-soft);font-size:.88rem;border-bottom:2px solid var(--ink)}
tbody th{font-weight:400;color:var(--ink-soft);white-space:nowrap}
td.raw{font-family:var(--mono);white-space:nowrap;letter-spacing:.04em}
th .swatch{display:inline-block;width:.7rem;height:.7rem;border-radius:2px;margin-right:.45rem;vertical-align:-.05rem;background:var(--fc)}
.st-ok{color:var(--ok);font-weight:700} .st-bad{color:var(--bad);font-weight:700}
@media (max-width:560px){#result .raw{display:none}}
tr[data-field]:hover{background:color-mix(in srgb,var(--accent) 6%,transparent)}

/* generator */
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));gap:.9rem 1.1rem;margin-top:1rem}
.field label{display:block;font-size:.9rem;color:var(--ink-soft);margin-bottom:.25rem}
.field input,.field select{width:100%;font:inherit;padding:.45rem .55rem;border:1px solid var(--rule);border-radius:4px;background:var(--surface);color:var(--ink)}
.field input:focus,.field select:focus{border-color:var(--accent)}
.field .help{font-size:.82rem;color:var(--ink-soft);margin-top:.2rem}
.output{margin-top:1.5rem}
.output pre{margin:0;font:400 clamp(.7rem,2.3vw,1.12rem)/2 var(--mono);letter-spacing:.06em;overflow-x:auto;background:var(--surface);border:1px solid var(--rule);border-radius:4px;padding:.6rem .8rem}
.warn{color:var(--bad);font-size:.92rem}

/* article */
.prose code,.prose kbd{font-family:var(--mono);font-size:.92em;background:var(--band);padding:.05em .3em;border-radius:3px}
.prose pre{background:var(--surface);border:1px solid var(--rule);border-radius:4px;padding:.8rem 1rem;overflow-x:auto;font:400 .9rem/1.6 var(--mono)}
.prose pre code{background:none;padding:0}
.calc-row td{font-family:var(--mono)}
.faq dt{font-weight:700;margin-top:1.1rem}
.faq dd{margin:.25rem 0 0;max-width:68ch}

.ad-slot{margin:2rem 0;min-height:280px;display:flex;align-items:center;justify-content:center}
.ad-slot:empty{display:none}

.site-footer{border-top:1px solid var(--rule);color:var(--ink-soft);font-size:.9rem}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;padding-top:1.2rem;padding-bottom:1.6rem}
.site-footer a{color:var(--ink-soft)}

@media (prefers-reduced-motion:reduce){*{transition:none!important}}