/* Layout: a ledger — section name in a narrow left column, text on the right, like a private bank's letter. One dark band for the review request. */
@font-face{font-family:"Newsreader";src:url("fonts/newsreader-latin-400-normal.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Newsreader";src:url("fonts/newsreader-latin-500-normal.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Newsreader";src:url("fonts/newsreader-latin-400-italic.woff2") format("woff2");font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url("fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url("fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url("fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2");font-weight:600;font-display:swap}

:root{
  --paper:#F4F5F2;
  --sheet:#FBFBF9;
  --ink:#16212B;
  --ink-2:#56636C;
  --rule:#D9DDD8;
  --accent:#7A5A2B;
  --band:#18232D;
  --band-ink:#ECEFEC;
  --band-2:#A3AFB6;
  --band-rule:#2C3944;
  --field:#FFFFFF;
  --error:#9B2C2C;
  --display:"Newsreader","Iowan Old Style",Georgia,serif;
  --body:"IBM Plex Sans","Segoe UI",system-ui,-apple-system,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#10171D;--sheet:#151E25;--ink:#E7EAE7;--ink-2:#9DA9B0;--rule:#27333C;--accent:#C9A46A;
  --band:#0B1116;--band-ink:#E7EAE7;--band-2:#93A0A8;--band-rule:#24313B;--field:#18222A;--error:#E08A8A;
  color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#10171D;--sheet:#151E25;--ink:#E7EAE7;--ink-2:#9DA9B0;--rule:#27333C;--accent:#C9A46A;
  --band:#0B1116;--band-ink:#E7EAE7;--band-2:#93A0A8;--band-rule:#24313B;--field:#18222A;--error:#E08A8A;
  color-scheme:dark}

html[data-lang="fr"] .en{display:none!important}
html:not([data-lang="fr"]) .fr{display:none!important}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:16.5px;line-height:1.65}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--paper)}
a{color:inherit;text-decoration-color:var(--accent);text-underline-offset:3px}
a:hover{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.wrap{max-width:1080px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--display);font-weight:400;margin:0;text-wrap:balance;letter-spacing:-.005em}
h1{font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.08}
h2{font-size:1.35rem;line-height:1.3}
h3{font-size:1.2rem;line-height:1.3;font-weight:500}
p{margin:0;max-width:64ch}
.muted{color:var(--ink-2)}
em.serif{font-family:var(--display);font-style:italic;font-size:1.08em}

/* header */
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--paper);border-bottom:1px solid var(--rule)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:16px}
.brand{font-family:var(--display);font-size:1.4rem;text-decoration:none;letter-spacing:.01em}
.brand span{color:var(--accent)}
nav.menu{display:flex;gap:26px;font-size:.92rem}
nav.menu a{text-decoration:none;color:var(--ink-2)}
nav.menu a:hover{color:var(--ink)}
.right{display:flex;align-items:center;gap:18px}
.lang{font-size:.82rem;color:var(--ink-2);display:flex;gap:6px;align-items:center}
.lang button{background:none;border:0;padding:2px 0;color:var(--ink-2);cursor:pointer;font:inherit}
.lang button[aria-pressed="true"]{color:var(--ink);text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px}


/* hero */
.hero{padding-block:88px 72px;display:grid;gap:28px;max-width:860px}
.hero .lede{font-size:1.18rem;color:var(--ink-2);max-width:58ch}
.links{display:flex;gap:28px;flex-wrap:wrap;align-items:center;font-size:.98rem}
.btn{display:inline-block;background:var(--ink);color:var(--paper);border:1px solid var(--ink);border-radius:2px;padding:12px 20px;font:500 .95rem var(--body);text-decoration:none;cursor:pointer}
.btn:hover{color:var(--paper);opacity:.9}
.btn.line{background:transparent;color:var(--ink)}
.btn.line:hover{color:var(--ink);border-color:var(--accent)}
.btn[disabled]{opacity:.35;cursor:not-allowed}
@media (max-width:640px){.hero{padding-block:52px 44px}}

/* ledger sections */
.row{display:grid;grid-template-columns:220px 1fr;gap:40px;padding-block:56px;border-top:1px solid var(--rule)}
.row>*{min-width:0}
.row>h2{padding-top:4px}
.stack{display:grid;gap:22px}
@media (max-width:760px){.row{grid-template-columns:1fr;gap:18px;padding-block:40px}}
.principles{display:grid;gap:26px}
.principle{display:grid;grid-template-columns:150px 1fr;gap:24px}
.principle>*{min-width:0}
.principle h3{font-size:1.1rem}
@media (max-width:560px){.principle{grid-template-columns:1fr;gap:4px}}
.dlist{display:grid;grid-template-columns:1fr 1fr;gap:22px 40px}
.dlist>div{display:grid;gap:4px;min-width:0}
.dlist p{font-size:.95rem;color:var(--ink-2)}
@media (max-width:640px){.dlist{grid-template-columns:1fr}}
.mandate{display:grid;gap:8px;padding-bottom:22px;border-bottom:1px solid var(--rule)}
.mandate:last-child{border-bottom:0;padding-bottom:0}
.mandate .when{font-size:.86rem;color:var(--ink-2)}
.terms{font-size:.92rem;color:var(--ink-2)}

/* review band */
.band{background:var(--band);color:var(--band-ink)}
.band .row{border-top:0}
.band .muted{color:var(--band-2)}
.band a{color:var(--band-ink)}
.form-sheet{background:var(--sheet);color:var(--ink);border-radius:3px;padding:32px;display:grid;gap:22px;min-height:400px}
@media (max-width:560px){.form-sheet{padding:22px 18px}}
.progress{height:2px;background:var(--rule)}
.progress span{display:block;height:100%;background:var(--accent);transition:width .25s ease}
.qcount{font-size:.82rem;color:var(--ink-2)}
.q h3{font-family:var(--display);font-weight:400;font-size:1.55rem;line-height:1.25}
.q .hint{color:var(--ink-2);font-size:.9rem;margin-top:6px}
.opts{display:grid;gap:8px}
.opt{text-align:left;background:transparent;border:1px solid var(--rule);border-radius:2px;padding:13px 16px;cursor:pointer;font:inherit;color:var(--ink);display:grid;gap:2px}
.opt small{color:var(--ink-2);font-size:.85rem;line-height:1.4}
.opt:hover{border-color:var(--ink-2)}
.opt[aria-pressed="true"]{border-color:var(--accent);box-shadow:inset 3px 0 0 var(--accent)}
.foot-btns{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:auto}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fields .full{grid-column:1/-1}
@media (max-width:600px){.fields{grid-template-columns:1fr}}
label{display:grid;gap:5px;font-size:.86rem;color:var(--ink-2)}
input,textarea,select{font:inherit;font-size:1rem;color:var(--ink);background:var(--field);border:1px solid var(--rule);border-radius:2px;padding:10px 12px;width:100%}
textarea{min-height:90px;resize:vertical}
.check{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:start;font-size:.86rem;color:var(--ink-2)}
.check input{width:auto;margin-top:4px}
.err{color:var(--error);font-size:.88rem}
.done h3{font-family:var(--display);font-weight:400;font-size:1.6rem}

/* footer */
footer{border-top:1px solid var(--rule);padding-block:34px;font-size:.86rem;color:var(--ink-2)}
.foot{display:flex;justify-content:space-between;gap:16px 28px;flex-wrap:wrap}
.foot nav{display:flex;gap:20px;flex-wrap:wrap}
.foot button{background:none;border:0;padding:0;font:inherit;color:inherit;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:3px;cursor:pointer}

/* cookie notice */
.cookie{position:fixed;left:0;right:0;bottom:0;z-index:20;background:var(--sheet);border-top:1px solid var(--rule);box-shadow:0 -6px 24px rgba(0,0,0,.08);padding-bottom:env(safe-area-inset-bottom,0px)}
.cookie .wrap{display:flex;gap:16px 28px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding-block:16px;font-size:.9rem}
.cookie p{max-width:72ch}
.cookie .acts{display:flex;gap:10px;flex-wrap:wrap}
.cookie .btn{padding:9px 16px;font-size:.88rem}

/* legal page */
.legal{padding-block:56px 72px;display:grid;gap:44px;max-width:820px}
.legal section{display:grid;gap:14px;scroll-margin-top:90px}
.legal h1{font-size:clamp(1.9rem,4vw,2.6rem)}
.legal h2{font-size:1.5rem;padding-top:12px;border-top:1px solid var(--rule)}
.legal h3{font-size:1.05rem;font-family:var(--body);font-weight:600;margin-top:6px}
.legal p,.legal li{font-size:.97rem}
.legal ul{margin:0;padding-left:20px;display:grid;gap:6px}
.legal table{border-collapse:collapse;width:100%;font-size:.92rem}
.legal th,.legal td{text-align:left;border-bottom:1px solid var(--rule);padding:8px 10px 8px 0;vertical-align:top}
.tablewrap{overflow-x:auto}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
.band .form-sheet .muted{color:var(--ink-2)}
.band .form-sheet a{color:var(--ink)}

/* guides */
.lang a{color:var(--ink-2);text-decoration:none}
.lang a:hover{color:var(--ink)}
.lang .cur{color:var(--ink);text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px}
.crumbs{font-size:.84rem;color:var(--ink-2);padding-top:28px;display:flex;gap:8px;flex-wrap:wrap}
.crumbs a{color:var(--ink-2)}
.article{max-width:760px;padding-block:20px 72px;display:grid;gap:22px}
.article h1{font-size:clamp(1.9rem,4vw,2.7rem);line-height:1.12}
.article h2{font-size:1.45rem;margin-top:18px}
.article p,.article li{font-size:1.02rem}
.article ul,.article ol{margin:0;padding-left:22px;display:grid;gap:8px}
.byline{font-size:.88rem;color:var(--ink-2)}
.brief{border-left:2px solid var(--accent);padding:4px 0 4px 18px;font-size:1.08rem}
.brief b{font-weight:600}
.article table,.hub table{border-collapse:collapse;width:100%;font-size:.93rem}
.article th,.article td{text-align:left;border-bottom:1px solid var(--rule);padding:9px 12px 9px 0;vertical-align:top}
.article th{font-weight:600}
.related{border-top:1px solid var(--rule);padding-top:22px;display:grid;gap:10px}
.related ul{list-style:none;padding:0}
.cta{background:var(--sheet);border:1px solid var(--rule);border-radius:3px;padding:22px;display:grid;gap:12px;justify-items:start}
.sources{font-size:.88rem;color:var(--ink-2)}
.sources li{font-size:.88rem}
.disclaimer{font-size:.84rem;color:var(--ink-2)}
.hub{padding-block:28px 72px;display:grid;gap:28px;max-width:860px}
.hub h1{font-size:clamp(1.9rem,4vw,2.6rem)}
.guide-list{display:grid;gap:0;border-top:1px solid var(--rule)}
.guide-list a{display:grid;gap:4px;padding:18px 0;border-bottom:1px solid var(--rule);text-decoration:none}
.guide-list a:hover h3{color:var(--accent)}
.guide-list p{color:var(--ink-2);font-size:.95rem}

/* accessibility, contents, news, glossary */
.skip{position:absolute;left:-999px;top:0;z-index:20;background:var(--ink);color:var(--paper);padding:8px 14px}
.skip:focus{left:16px;top:8px}
.toc{border:1px solid var(--rule);padding:16px 20px;display:grid;gap:8px}
.toc p{font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2)}
.toc ol{margin:0;padding-left:20px;display:grid;gap:4px;font-size:.95rem}
.toc a{text-decoration:none}
.toc a:hover{text-decoration:underline}
.article h2[id]{scroll-margin-top:90px}
.news-list .date{font-size:.8rem;letter-spacing:.04em;color:var(--ink-2)}
.method{font-size:.88rem;color:var(--ink-2);border-top:1px solid var(--rule);padding-top:16px;max-width:none}
.gloss-idx{font-size:.9rem;line-height:1.9;max-width:none}
.gloss-idx a{text-decoration:none;white-space:nowrap}
.gloss{margin:0;display:grid;border-top:1px solid var(--rule)}
.gloss .term{padding:16px 0;border-bottom:1px solid var(--rule);display:grid;grid-template-columns:240px 1fr;gap:20px;scroll-margin-top:90px}
.gloss dt{font-family:var(--display);font-size:1.12rem}
.gloss dd{margin:0;max-width:64ch}
@media (max-width:640px){.gloss .term{grid-template-columns:1fr;gap:6px}}
/* mobile navigation: second row, scrollable */
@media (max-width:900px){
  .bar{flex-wrap:wrap;row-gap:10px}
  nav.menu{display:flex;order:3;width:100%;overflow-x:auto;gap:20px;font-size:.88rem;padding-bottom:2px;scrollbar-width:none}
  nav.menu::-webkit-scrollbar{display:none}
  nav.menu a{white-space:nowrap}
}
@media (max-width:420px){.right .btn{display:none}}