/* ===================================================================
   HX Africa — product documentation.
   =================================================================== */
:root {
  --bg: #07090c; --bg-1: #0b0e13; --bg-2: #10141b; --bg-3: #171d28;
  --line: rgba(255,255,255,0.08); --line-2: rgba(255,255,255,0.14);
  --text: #f4f6f9; --text-dim: #9aa4b2; --text-faint: #626b78;
  --gold: #f0b90b; --gold-2: #ffd75e; --up: #2ebd85; --down: #f6465d;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "SF Mono", "Roboto Mono", ui-monospace, Menlo, monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--sans); font-size: 15px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }

/* Nav */
.nav { display: flex; align-items: center; justify-content: space-between; height: 56px; padding: 0 22px; background: var(--bg-1); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 40; }
.nav-left { display: flex; align-items: center; gap: 30px; }
.brand { display: flex; align-items: baseline; gap: 6px; }
.brand-mark { font-weight: 800; font-size: 19px; color: #1a1400; background: linear-gradient(120deg, var(--gold), var(--gold-2)); padding: 2px 7px; border-radius: 6px; }
.brand-name { font-weight: 700; font-size: 18px; }
.nav-links { display: flex; gap: 22px; }
.nav-links a { color: var(--text-dim); font-weight: 500; font-size: 14px; transition: color .15s; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-right { display: flex; gap: 10px; }
.btn { border: none; border-radius: 8px; padding: 9px 15px; font-weight: 600; font-size: 13px; cursor: pointer; transition: all .15s; }
.btn-ghost { background: var(--bg-3); color: var(--text); }
.btn-primary { background: linear-gradient(120deg, var(--gold), var(--gold-2)); color: #1a1400; }

/* Layout */
.doc-wrap { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: 240px 1fr; gap: 40px; padding: 0 22px; }
.toc { position: sticky; top: 56px; align-self: start; height: calc(100vh - 56px); overflow-y: auto; padding: 30px 0; }
.toc h4 { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--text-faint); margin: 18px 0 8px; }
.toc a { display: block; color: var(--text-dim); font-size: 13.5px; padding: 5px 10px; border-left: 2px solid transparent; transition: all .12s; }
.toc a:hover { color: var(--text); }
.toc a.active { color: var(--gold); border-left-color: var(--gold); background: rgba(240,185,11,.06); }

.article { padding: 40px 0 100px; min-width: 0; max-width: 780px; }
.doc-hero { margin-bottom: 40px; }
.doc-hero .eyebrow { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--gold); margin-bottom: 12px; }
.doc-hero h1 { font-size: 40px; font-weight: 800; letter-spacing: -1px; line-height: 1.1; }
.doc-hero p { color: var(--text-dim); margin-top: 14px; font-size: 17px; }

.article section { padding-top: 40px; margin-top: 8px; scroll-margin-top: 70px; }
.article h2 { font-size: 26px; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.article h3 { font-size: 18px; font-weight: 700; margin: 26px 0 10px; }
.article p { color: var(--text-dim); margin-bottom: 14px; }
.article ul, .article ol { color: var(--text-dim); margin: 0 0 14px 22px; }
.article li { margin-bottom: 7px; }
.article b, .article strong { color: var(--text); }
.article code { font-family: var(--mono); font-size: 0.88em; background: var(--bg-2); border: 1px solid var(--line); padding: 1px 6px; border-radius: 5px; color: var(--gold-2); }
pre { background: var(--bg-1); border: 1px solid var(--line); border-radius: 10px; padding: 16px; overflow-x: auto; margin-bottom: 16px; }
pre code { background: none; border: none; padding: 0; color: #cdd6e4; font-size: 13px; line-height: 1.6; }

.callout { display: flex; gap: 12px; background: rgba(240,185,11,.06); border: 1px solid rgba(240,185,11,.25); border-radius: 10px; padding: 14px 16px; margin-bottom: 16px; }
.callout .ic { font-size: 18px; }
.callout p { color: var(--text); margin: 0; font-size: 14px; }

table { width: 100%; border-collapse: collapse; margin-bottom: 16px; font-size: 14px; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); }
th { color: var(--text-faint); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
td { color: var(--text-dim); }
td code { font-size: 12px; }
.tag { display: inline-block; font-family: var(--mono); font-size: 11px; font-weight: 700; padding: 2px 7px; border-radius: 5px; }
.tag.get { background: rgba(46,189,133,.15); color: var(--up); }
.tag.post { background: rgba(240,185,11,.15); color: var(--gold); }
.tag.del { background: rgba(246,70,93,.15); color: var(--down); }

.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-bottom: 8px; }
.card { background: var(--bg-1); border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
.card .ic { font-size: 22px; margin-bottom: 8px; }
.card h4 { font-size: 15px; margin-bottom: 6px; }
.card p { font-size: 13.5px; margin: 0; }

.foot { border-top: 1px solid var(--line); padding: 24px 22px; text-align: center; color: var(--text-faint); font-size: 12px; }
.foot a { color: var(--gold); }

::-webkit-scrollbar { width: 8px; } ::-webkit-scrollbar-thumb { background: #1a2029; border-radius: 4px; }

@media (max-width: 900px) {
  .doc-wrap { grid-template-columns: 1fr; }
  .toc { display: none; }
  .nav-links { display: none; }
  .cards { grid-template-columns: 1fr; }
}
/* ============ Rich components (v2 docs) ============ */
/* Vertical flow / stepper */
.flow { position: relative; margin: 10px 0 22px; }
.flow-step { position: relative; padding: 0 0 24px 46px; }
.flow-step:not(:last-child)::before { content: ""; position: absolute; left: 15px; top: 4px; bottom: -6px; width: 2px; background: var(--line); }
.flow-num { position: absolute; left: 0; top: -3px; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--bg-2); border: 1px solid var(--line-2); color: var(--gold); font-family: var(--mono); font-weight: 700; font-size: 13px; }
.flow-step h4 { font-size: 16px; margin: 0 0 5px; display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.flow-step p { margin: 0; font-size: 14px; }

/* Role tags */
.role-tag { display: inline-block; font-size: 10px; font-weight: 700; letter-spacing: .4px; text-transform: uppercase; padding: 2px 8px; border-radius: 20px; }
.role-tag.admin { background: rgba(240,185,11,.15); color: var(--gold); }
.role-tag.custodian { background: rgba(46,189,133,.15); color: var(--up); }
.role-tag.issuer { background: rgba(139,92,246,.18); color: #b39aff; }
.role-tag.investor { background: rgba(74,163,255,.15); color: #7bb6ff; }
.role-tag.auditor { background: rgba(255,255,255,.08); color: var(--text-dim); }
.role-tag.system { background: rgba(255,255,255,.06); color: var(--text-faint); }

/* Role cards */
.rolecards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-bottom: 10px; }
.rolecard { background: var(--bg-1); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; }
.rolecard h4 { display: flex; align-items: center; gap: 9px; font-size: 15px; margin-bottom: 10px; }
.rolecard ul { margin: 0 0 0 18px; font-size: 13.5px; }
.rolecard li { margin-bottom: 6px; }

/* Status pill */
.pill { display: inline-block; font-family: var(--mono); font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 5px; background: var(--bg-3); color: var(--text-dim); border: 1px solid var(--line); }
.pill.live { color: var(--up); border-color: rgba(46,189,133,.4); }
.pill.warn { color: var(--gold); border-color: rgba(240,185,11,.4); }
.pill.stop { color: var(--down); border-color: rgba(246,70,93,.4); }

/* Checklist */
.checklist { list-style: none; margin: 0 0 16px 0; }
.checklist li { position: relative; padding-left: 28px; margin-bottom: 9px; color: var(--text-dim); }
.checklist li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 18px; height: 18px; border-radius: 50%; background: rgba(46,189,133,.15); color: var(--up); font-size: 11px; display: grid; place-items: center; }
.checklist b { color: var(--text); }

/* Architecture boxes */
.arch { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.arch .box { background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; padding: 12px; text-align: center; font-size: 13px; }
.arch .box b { display: block; color: var(--text); margin-bottom: 3px; }
.arch .box span { font-size: 11.5px; color: var(--text-faint); }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 640px) { .rolecards, .grid2, .arch { grid-template-columns: 1fr; } }