/* usdh.money/docs (built by tools/docs.py from src/docs). Paper page in the brand page's palette:
   ink on paper, USDh green for links and actions, Instrument Serif titles, Geist body and labels,
   Geist Mono only for figures and code. Few rules and boxes: space does the separating. */
:root{
  --d-paper:#FBF6EC; --d-card:#FFFDF8; --d-paper-2:#F3ECDD; --d-line:#E4DCCB; --d-line-2:#D5CCB8;
  --d-ink:#121513; --d-body:#2B332E; --d-sub:#55524B; --d-mute:#6B6A62;
  --d-green:#1F5A43; --d-green-hi:#2A7357; --d-green-wash:#E7EFE9; --d-brass-ink:#7A5D24;
  --d-top:64px;
}
html{background:var(--d-paper);scroll-padding-top:calc(var(--d-top) + 24px)}
body.docs{background:var(--d-paper);color:var(--d-ink);color-scheme:light;overflow-x:clip}
/* clip, not hidden: hidden turns the body into its own scroll box, which some phone browsers then refuse to scroll */
.docs .sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.docs .skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--d-ink);color:var(--d-paper);padding:10px 14px;border-radius:6px;text-decoration:none;font-size:14px}
.docs .skip:focus{top:12px}
.docs :focus-visible{outline:2px solid var(--d-green);outline-offset:2px;border-radius:4px}

/* ---------- top bar ---------- */
.dtop{position:sticky;top:0;z-index:50;background:rgba(251,246,236,.94);backdrop-filter:saturate(1.2) blur(10px);-webkit-backdrop-filter:saturate(1.2) blur(10px);border-bottom:1px solid var(--d-line);padding-top:env(safe-area-inset-top,0px)}
.dtop-in{max-width:1320px;margin:0 auto;height:var(--d-top);display:flex;align-items:center;gap:16px;padding-inline:clamp(16px,3vw,32px)}
.dbrand{display:flex;align-items:center;flex:none}
.dbrand img{height:17px;width:auto;max-width:none}
.dtag{position:relative;padding-left:17px;font-size:15px;font-weight:500;color:var(--d-sub);text-decoration:none}
.dtag::before{content:"";position:absolute;left:0;top:50%;width:1px;height:18px;margin-top:-9px;background:var(--d-line-2)}
.dtag:hover{color:var(--d-ink)}
.dsearch{position:relative;margin-left:auto;min-width:0;display:flex;align-items:center;gap:8px;width:min(320px,40vw);height:40px;padding:0 10px 0 12px;border:1px solid var(--d-line);border-radius:8px;background:var(--d-card);color:var(--d-mute)}
.dsearch:focus-within{border-color:var(--d-green);box-shadow:0 0 0 3px rgba(31,90,67,.12)}
.dsearch svg{flex:none}
.dsearch input{flex:1;min-width:0;border:0;background:transparent;font:inherit;font-size:15px;color:var(--d-ink);outline:none}
.dsearch input:focus-visible{outline:none}
.dsearch input::placeholder{color:var(--d-mute)}
.dsearch input::-webkit-search-cancel-button{display:none}
.dsearch kbd{font-family:var(--mono);font-size:11px;color:var(--d-mute);border:1px solid var(--d-line);border-radius:4px;padding:0 5px;line-height:18px}
.dsearch:focus-within kbd{display:none}
.dresults{position:absolute;top:calc(100% + 6px);left:0;right:0;min-width:300px;max-height:min(420px,70vh);overflow:auto;background:var(--d-card);border:1px solid var(--d-line);border-radius:10px;box-shadow:0 18px 40px -18px rgba(18,21,19,.28);padding:6px}
.dresults a{display:block;padding:10px 12px;border-radius:7px;text-decoration:none;color:var(--d-ink)}
.dresults a[aria-selected="true"],.dresults a:hover{background:var(--d-green-wash)}
.dresults b{display:block;font-weight:500;font-size:14.5px}
.dresults span{display:block;font-size:13px;color:var(--d-sub);line-height:1.45;margin-top:2px}
.dresults mark{background:none;color:var(--d-green);font-weight:600}
.dresults .none{padding:12px;font-size:14px;color:var(--d-sub)}
.dapp{min-height:40px;padding:0 16px;font-size:14px;border-radius:8px;flex:none}
.dmenu{display:none;flex:none;width:40px;height:40px;border:1px solid var(--d-line);border-radius:8px;background:var(--d-card);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.dmenu i{display:block;width:16px;height:1.5px;background:var(--d-ink);transition:transform .2s ease}
.dmenu[aria-expanded="true"] i:first-of-type{transform:translateY(3.25px) rotate(45deg)}
.dmenu[aria-expanded="true"] i:last-of-type{transform:translateY(-3.25px) rotate(-45deg)}

/* ---------- three columns ---------- */
.dwrap{max-width:1320px;margin:0 auto;display:grid;grid-template-columns:240px minmax(0,1fr) 196px;gap:0 56px;padding-inline:clamp(16px,3vw,32px)}

/* sidebar: plain labels, one quiet rail per group, the current page marked on the rail */
.side{position:sticky;top:var(--d-top);align-self:start;max-height:calc(100vh - var(--d-top));overflow:auto;padding:44px 0 48px;display:flex;flex-direction:column;gap:28px;scrollbar-width:thin}
.side-k{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--d-mute);margin:0 0 10px}
.side ul,.toc ul{list-style:none;margin:0;padding:0}
.side ul{border-left:1px solid var(--d-line)}
.side li a{position:relative;display:flex;align-items:baseline;gap:10px;padding:6px 0 6px 14px;font-size:14.5px;line-height:1.4;color:var(--d-sub);text-decoration:none;transition:color .15s ease}
.side li a:hover{color:var(--d-ink)}
.side li a[aria-current="page"]{color:var(--d-green);font-weight:500}
.sn{flex:none;width:18px;font-family:var(--mono);font-size:11px;font-weight:400;color:var(--d-mute);font-variant-numeric:tabular-nums}
.side li a[aria-current="page"] .sn{color:var(--d-green)}
.side li a[aria-current="page"]::before{content:"";position:absolute;left:-1px;top:4px;bottom:4px;width:2px;border-radius:2px;background:var(--d-green)}

.toc{position:sticky;top:var(--d-top);align-self:start;padding:48px 0;max-height:calc(100vh - var(--d-top));overflow:auto}

.toc li a{display:block;padding:5px 0 5px 14px;border-left:1px solid var(--d-line);font-size:13.5px;line-height:1.4;color:var(--d-sub);text-decoration:none}
.toc li a:hover{color:var(--d-ink)}
.toc li a.on{color:var(--d-green);border-left-color:var(--d-green)}

/* ---------- the page ---------- */
.dmain{min-width:0;padding:44px 0 80px}
.dmain article{max-width:720px}
.deye{display:flex;align-items:center;gap:12px;font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--d-green)}
.deye::before{content:"";width:28px;height:1px;background:currentColor;opacity:.7}
.dmain h1 .dot{color:var(--brass,#D3AE63)}
.dmain h1{font-family:var(--serif);font-weight:400;font-size:clamp(44px,5vw,60px);line-height:1;letter-spacing:-.015em;margin:10px 0 0;text-wrap:balance}
.dmain .lede{font-size:19px;line-height:1.55;color:#35423B;margin:18px 0 0;max-width:640px;text-wrap:pretty}
.dmain h2{font-family:var(--serif);font-weight:400;font-size:32px;line-height:1.1;letter-spacing:-.01em;margin:60px 0 0;text-wrap:balance}
.dmain h3{font-family:var(--sans);font-weight:600;font-size:18px;line-height:1.35;margin:32px 0 0}
.dmain h2 .hl,.dmain h3 .hl{margin-left:10px;font-family:var(--sans);font-size:.6em;color:var(--d-mute);text-decoration:none;opacity:0;transition:opacity .15s;vertical-align:middle}
.dmain h2:hover .hl,.dmain h3:hover .hl,.dmain .hl:focus{opacity:1}
.dmain p{margin:14px 0 0;font-size:17px;line-height:1.65;color:var(--d-body);text-wrap:pretty}
.dmain ul,.dmain ol:not(.steps):not(.flow){margin:14px 0 0;padding-left:22px;font-size:17px;line-height:1.65;color:var(--d-body)}
.dmain li + li{margin-top:8px}
.dmain .flow li + li{margin-top:0}
.dmain li::marker{color:var(--d-mute)}
.dmain strong{color:var(--d-ink);font-weight:600}
.dmain a{color:var(--d-green);text-decoration:underline;text-decoration-color:rgba(31,90,67,.4);text-decoration-thickness:1px;text-underline-offset:3px}
.dmain a:hover{color:var(--d-green-hi);text-decoration-color:currentColor}
.dmain code{font-family:var(--mono);font-size:.84em;background:var(--d-paper-2);border-radius:4px;padding:2px 6px;color:var(--d-ink);word-break:break-all}

/* tables: rules between rows only, no outer box */
.tbl{margin:20px 0 0;overflow-x:auto}
.dmain table{width:100%;border-collapse:collapse;font-size:15.5px;line-height:1.5}
.dmain th,.dmain td{text-align:left;vertical-align:top;padding:12px 16px 12px 0;border-bottom:1px solid var(--d-line);color:var(--d-body)}
.dmain th:last-child,.dmain td:last-child{padding-right:0}
.dmain thead th{font-family:var(--mono);font-size:12px;font-weight:400;letter-spacing:.04em;color:var(--d-mute);border-bottom:1px solid var(--d-line-2);padding-top:0}
.dmain tbody th{font-weight:500;color:var(--d-ink);min-width:118px}
.dmain table.kv tbody th{width:30%;min-width:110px;font-weight:400;color:var(--d-sub)}
.dmain table.kv tbody tr:first-child th,.dmain table.kv tbody tr:first-child td{border-top:1px solid var(--d-line)}
.dmain td code,.dmain th code{font-size:13px}

/* boxes: tinted, no borders */
.box{margin:24px 0 0;padding:18px 20px;border-radius:10px;background:var(--d-card);box-shadow:inset 0 0 0 1px var(--d-line)}
.box > p:first-of-type{margin-top:4px}
.box p,.box li{font-size:16px}
.box-k{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--d-green)}
.box.warn{background:#F6EEDC;box-shadow:none}
.box.warn .box-k{color:var(--d-brass-ink)}
.box.example{background:var(--d-paper-2);box-shadow:none}
.box.example .box-k{color:var(--d-sub)}
.box.example ol{margin-top:10px}

/* steps */
.steps{list-style:none;margin:20px 0 0;padding:0;display:flex;flex-direction:column;gap:18px}
.steps li{display:grid;grid-template-columns:28px 1fr;gap:14px;font-size:17px;line-height:1.6;color:var(--d-body);margin:0}
.steps .n{display:grid;place-items:center;width:28px;height:28px;margin-top:1px;border-radius:50%;background:var(--d-green-wash);color:var(--d-green);font-family:var(--mono);font-size:13px;font-weight:500}

/* coupons: the router cards and Previous / Next are lending coupons, as on usdh.money:
   a numbered header, a dashed perforation, and real punched notches (a mask) at both ends of it.
   The outline is a drop-shadow on the parent, so it follows the notches. */
.cards,.pns{filter:drop-shadow(0 0 .6px rgba(18,21,19,.42)) drop-shadow(0 6px 14px rgba(18,21,19,.05))}
.dmain .cpn{--ny:42px;--nr:7px;position:relative;display:flex;flex-direction:column;background:var(--d-card);border-radius:12px;text-decoration:none;color:var(--d-ink);
  -webkit-mask:radial-gradient(circle var(--nr) at 0 var(--ny),#0000 calc(var(--nr) - .5px),#000 var(--nr)) left/51% 100% no-repeat,radial-gradient(circle var(--nr) at 100% var(--ny),#0000 calc(var(--nr) - .5px),#000 var(--nr)) right/51% 100% no-repeat;
  mask:radial-gradient(circle var(--nr) at 0 var(--ny),#0000 calc(var(--nr) - .5px),#000 var(--nr)) left/51% 100% no-repeat,radial-gradient(circle var(--nr) at 100% var(--ny),#0000 calc(var(--nr) - .5px),#000 var(--nr)) right/51% 100% no-repeat;
  transition:background .15s ease}
.dmain .cpn:hover{background:#FFFFFF}
.cpn-top{display:flex;justify-content:space-between;align-items:center;gap:10px;height:var(--ny);padding:0 18px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--d-green)}
.cpn-top i{font-style:normal}
.cpn-perf{display:block;height:0;margin:0 14px;border-top:1.5px dashed rgba(18,21,19,.2)}
.cpn .coin{width:22px;height:22px;flex:none}
.cpn .coin-none{width:22px;height:22px}

.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:22px 0 0}
.card b{display:flex;justify-content:space-between;align-items:baseline;gap:8px;padding:16px 18px 0;font-family:var(--serif);font-weight:400;font-size:25px;line-height:1.1}
.card b i{font-family:var(--sans);font-style:normal;font-size:18px;color:var(--d-green);transition:transform .15s ease}
.card:hover b i{transform:translateX(3px)}
.card .card-x{padding:8px 18px 20px;font-size:15px;line-height:1.5;color:var(--d-sub)}

/* flow: numbered steps on one rail, equal widths, text top-aligned */
.flow{list-style:none;margin:24px 0 0;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0}
.flow li{position:relative;margin:0;padding:0 14px 0 0;display:flex;flex-direction:column;gap:10px}
.flow li::before{content:"";position:absolute;left:34px;right:4px;top:14px;height:1px;background:var(--d-line-2)}
.flow li:last-child::before{display:none}
.fn-n{position:relative;z-index:1;display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--d-green-wash);color:var(--d-green);font-family:var(--mono);font-size:12px;font-weight:500}
.fn-t{font-size:15px;line-height:1.45;color:var(--d-ink)}
/* status chips */
.chip{display:inline-block;margin:0 6px 2px 0;padding:1px 8px;border-radius:999px;background:var(--d-green-wash);color:var(--d-green);font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;vertical-align:1px;white-space:nowrap}

/* questions */
.qas{margin:8px 0 0}
.qa{border-bottom:1px solid var(--d-line)}
.qa summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:16px 0;font-weight:500;font-size:17px;color:var(--d-ink)}
.qa summary:hover{color:var(--d-green)}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";font-size:20px;font-weight:400;color:var(--d-green);line-height:1}
.qa[open] summary::after{content:"\2212"}
.qa > div{padding:0 0 18px}
.qa > div > p:first-child{margin-top:0}

/* words */
.terms{margin:16px 0 0;display:grid}
.terms > div{display:grid;grid-template-columns:180px 1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--d-line)}
.terms dt{font-weight:600;font-size:16px;color:var(--d-ink)}
.terms dd{margin:0;font-size:16px;line-height:1.6;color:var(--d-body)}

/* page footer: previous / next coupons, then the date */
.dfoot{margin-top:72px}
.pns{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.dmain .pn.next .cpn-top{flex-direction:row}
.pn-t{display:block;padding:14px 18px 18px;font-family:var(--serif);font-size:25px;line-height:1.1;color:var(--d-ink);transition:color .15s ease}
.dmain .pn.next .pn-t{text-align:right}
.dmain .pn:hover .pn-t{color:var(--d-green)}
.dupd{margin:22px 0 0 !important;font-family:var(--mono);font-size:12px !important;letter-spacing:.04em;color:var(--d-mute) !important}

/* footer sits on night, as on the rest of usdh.money */
.docs .foot{margin-top:0}

/* ---------- smaller screens ---------- */
@media (max-width:1240px){
  .dwrap{grid-template-columns:236px minmax(0,1fr);gap:0 48px}
  .toc{display:none}
}
@media (max-width:960px){
  .dwrap{grid-template-columns:minmax(0,1fr)}
  .dmenu{display:flex}
  .side{display:none;position:fixed;inset:calc(var(--d-top) + env(safe-area-inset-top,0px)) 0 0 0;align-self:auto;max-height:none;overscroll-behavior:contain;z-index:40;background:var(--d-paper);padding:28px clamp(16px,3vw,32px) 48px;gap:26px}
  .side.open{display:flex}
  .side li a{font-size:17px;padding:9px 0 9px 16px}
  body.docs.menu-open{overflow:hidden}
  .dsearch{width:auto;flex:1;margin-left:4px}
  .dresults{min-width:0;position:fixed;left:12px;right:12px;top:calc(var(--d-top) + env(safe-area-inset-top,0px) + 4px)}
}
@media (max-width:640px){
  .dapp,.dtag,.dsearch kbd{display:none}
  .dbrand img{height:15px}
  .dmain{padding-top:30px}
  .dmain .lede{font-size:18px}
  .dmain h2{font-size:28px;margin-top:48px}
  .dmain p,.dmain ul,.steps li{font-size:16.5px}
  .cards{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .flow li{flex-direction:row;align-items:flex-start;gap:14px;padding:0 0 18px}
  .flow li::before{left:14px;right:auto;top:32px;bottom:4px;width:1px;height:auto}
  .fn-t{padding-top:4px;font-size:16px}
  .terms > div{grid-template-columns:1fr;gap:4px}
  .dfoot{margin-top:56px}
  .pns{gap:10px;grid-template-columns:1fr}
  .pn-gap{display:none}
  .pn-t{font-size:21px;padding:12px 16px 16px}
  .dmain table{font-size:15px}
  /* tables with three or more columns stack: one block per row on phones */
  .tbl.stack table,.tbl.stack tbody,.tbl.stack tr,.tbl.stack th,.tbl.stack td{display:block;width:auto}
  .tbl.stack thead{display:none}
  .tbl.stack tr{padding:14px 0;border-bottom:1px solid var(--d-line)}
  .tbl.stack tr:first-child{border-top:1px solid var(--d-line-2)}
  .tbl.stack tbody th,.tbl.stack td{border:0;padding:0}
  .tbl.stack tbody th{font-size:16px;margin-bottom:6px}
  .tbl.stack td + td{margin-top:8px}
  .tbl.stack td::before{content:attr(data-label);display:block;font-size:12.5px;font-weight:600;color:var(--d-mute);margin-bottom:1px}
}
@media (prefers-reduced-motion:reduce){.dmain .cpn,.card b i,.pn-t,.dmenu i,.side li a{transition:none}}