/* iQpay Internal Resources, restyled to match resources.iqpay.com (Mintlify look).
   Light accent: #1f2043 (brand navy). Dark accent: #667eea (brand periwinkle). */

:root {
  color-scheme: light;
  --navy: #1f2043;
  --peri: #667eea;

  --bg: #ffffff;
  --bg-raise: #ffffff;
  --bg-sunk: #f4f4f5;
  --ink: #18181b;
  --ink-soft: #52525b;
  --ink-faint: #71717a;
  --line: #e4e4e7;
  --line-strong: #d4d4d8;

  --accent: #1f2043;
  --accent-soft: #f0f1fa;
  --link: #18181b;

  --c-incomm: #b91c1c;
  --c-iqpay: #3450c8;
  --c-muddy: #15803d;

  --warn-ink: #92400e;
  --warn-bg: #fffbeb;
  --warn-line: #fde68a;
  --note-bg: #fafafa;
  --gotcha-ink: #15803d;
  --gotcha-bg: #f0fdf4;
  --gotcha-line: #bbf7d0;

  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --header-h: 94px;
  --container: 1440px;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #17181d;
  --bg-raise: #1c1d24;
  --bg-sunk: #212229;
  --ink: #f4f4f5;
  --ink-soft: #a1a1aa;
  --ink-faint: #71717a;
  --line: #27282f;
  --line-strong: #33343c;

  --accent: #8b97f2;
  --accent-soft: #23253c;
  --link: #f4f4f5;

  --c-incomm: #f08c85;
  --c-iqpay: #8ea3f5;
  --c-muddy: #4ade80;

  --warn-ink: #fbbf24;
  --warn-bg: #2a2214;
  --warn-line: #4d3d16;
  --note-bg: #1c1d24;
  --gotcha-ink: #4ade80;
  --gotcha-bg: #1b2a20;
  --gotcha-line: #2d4a37;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 20px); }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-soft);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---------- header: topbar + tab row ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.topbar {
  height: 52px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  display: flex; align-items: center; gap: 16px;
  position: relative;
}
.brand {
  font-size: 21px; font-weight: 700; letter-spacing: -0.02em;
  color: var(--ink); text-decoration: none;
  white-space: nowrap;
}
.topbar-spacer { flex: 1; }

.searchbox {
  position: absolute; left: 50%; transform: translateX(-50%);
  width: min(420px, 34vw);
}
.searchbox input {
  width: 100%; height: 38px;
  padding: 0 44px 0 34px;
  font: 400 14px var(--font-body);
  color: var(--ink); background: var(--bg-sunk);
  border: 1px solid var(--line); border-radius: 10px;
  outline: none;
}
.searchbox input::placeholder { color: var(--ink-faint); }
.searchbox input:focus { border-color: var(--line-strong); }
.searchbox .s-ico { position: absolute; left: 10px; top: 11px; width: 15px; height: 15px; stroke: var(--ink-faint); fill: none; stroke-width: 2; }
.searchbox .s-kbd {
  position: absolute; right: 10px; top: 9px;
  font: 500 11px var(--font-body); color: var(--ink-faint);
  border: 1px solid var(--line); border-radius: 5px;
  padding: 1px 5px; background: var(--bg);
}
.search-results {
  position: absolute; top: 44px; left: 0; right: 0;
  background: var(--bg-raise); border: 1px solid var(--line);
  border-radius: 12px; box-shadow: 0 12px 32px -8px rgba(0,0,0,.18);
  max-height: 60vh; overflow: auto; display: none;
}
.search-results.open { display: block; }
.search-results a { display: block; padding: 10px 14px; text-decoration: none; border-bottom: 1px solid var(--line); }
.search-results a:last-child { border-bottom: 0; }
.search-results a:hover, .search-results a.sel { background: var(--bg-sunk); }
.search-results .r-title { font-weight: 600; font-size: 14px; color: var(--ink); }
.search-results .r-crumb { font-size: 12.5px; color: var(--ink-faint); }
.search-empty { padding: 14px; font-size: 13px; color: var(--ink-faint); }

.iconbtn {
  width: 34px; height: 34px; flex: none;
  display: grid; place-items: center;
  background: none; border: 0; border-radius: 8px;
  color: var(--ink-soft); cursor: pointer;
}
.iconbtn:hover { background: var(--bg-sunk); color: var(--ink); }
.iconbtn svg { width: 17px; height: 17px; }
#menuBtn { display: none; }

.tabrow-wrap { border-top: 1px solid transparent; }
.tabrow {
  max-width: var(--container); margin: 0 auto; padding: 0 28px;
  height: 41px; display: flex; gap: 24px;
}
.tabrow a {
  display: flex; align-items: center;
  font-size: 14px; font-weight: 500; color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tabrow a:hover { color: var(--ink); }
.tabrow a.active { color: var(--ink); border-bottom-color: var(--accent); font-weight: 600; }
.tabrow a .ext { font-size: 11px; margin-left: 5px; color: var(--ink-faint); }

/* ---------- layout ---------- */
.shell {
  display: flex; gap: 0;
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--header-h) 28px 0;
  min-height: 100vh;
}

.sidebar {
  position: sticky; top: var(--header-h); align-self: flex-start;
  width: 232px; flex: none;
  height: calc(100vh - var(--header-h)); overflow-y: auto;
  padding: 30px 20px 48px 2px;
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}
.nav-group { margin: 0 0 26px; }
.nav-group h5 {
  margin: 0 0 8px; display: flex; align-items: center; gap: 8px;
  font: 600 13px var(--font-body);
  color: var(--ink);
}
.nav-group h5 svg { width: 14px; height: 14px; stroke: var(--ink); fill: none; stroke-width: 2; }
.nav-group a {
  display: block; padding: 6px 10px; margin: 1px 0;
  font-size: 14px; font-weight: 400;
  color: var(--ink-soft); text-decoration: none;
  border-radius: 8px;
}
.nav-group a:hover { color: var(--ink); }
.nav-group a.active {
  color: var(--ink); background: var(--bg-sunk);
  border: 1px solid var(--line); padding: 5px 9px;
  font-weight: 500;
}

.main { flex: 1; min-width: 0; display: flex; justify-content: center; gap: 40px; }
.content {
  max-width: 49rem; min-width: 0; flex: 1;
  padding: 36px 0 96px;
}

/* ---------- right TOC ---------- */
.toc {
  position: sticky; top: var(--header-h); align-self: flex-start;
  width: 220px; flex: none;
  max-height: calc(100vh - var(--header-h)); overflow-y: auto;
  padding: 36px 0 48px;
  font-size: 13.5px;
}
.toc h6 {
  margin: 0 0 10px; display: flex; align-items: center; gap: 7px;
  font: 600 13.5px var(--font-body); color: var(--ink);
}
.toc h6 svg { width: 13px; height: 13px; stroke: var(--ink-soft); fill: none; stroke-width: 2; }
.toc a {
  display: block; padding: 4px 0;
  color: var(--ink-faint); text-decoration: none;
}
.toc a:hover { color: var(--ink); }
.toc a.active { color: var(--accent); font-weight: 500; }
.toc a.h3 { padding-left: 14px; }

/* ---------- typography ---------- */
.crumb {
  font: 600 14px var(--font-body);
  color: var(--accent);
  margin: 0 0 6px;
}
h1 {
  margin: 0 0 10px;
  font-size: 34px; font-weight: 700; line-height: 1.2;
  letter-spacing: -0.02em; color: var(--ink);
}
.lede { margin: 0 0 30px; font-size: 17px; line-height: 1.6; color: var(--ink-soft); }
h2 {
  margin: 44px 0 14px;
  font-size: 22px; font-weight: 600; line-height: 1.3;
  letter-spacing: -0.01em; color: var(--ink);
}
h3 { margin: 30px 0 10px; font-size: 17px; font-weight: 600; color: var(--ink); }
p { margin: 0 0 16px; }
ul, ol { margin: 0 0 16px; padding-left: 26px; }
li { margin: 0 0 6px; }
.content a { color: var(--link); font-weight: 500; text-decoration: underline; text-decoration-color: var(--line-strong); text-underline-offset: 3px; }
.content a:hover { text-decoration-color: var(--accent); color: var(--accent); }
strong { font-weight: 600; color: var(--ink); }
hr { border: 0; border-top: 1px solid var(--line); margin: 32px 0; }

code {
  font: 500 13.5px var(--font-mono);
  color: var(--ink);
  background: var(--bg-sunk); border: 1px solid var(--line);
  padding: 1px 5px; border-radius: 6px;
  white-space: nowrap;
}
pre code { white-space: pre; }
pre {
  background: #17181d; color: #d4d4d8;
  border: 1px solid #27282f;
  border-radius: 12px;
  padding: 16px 18px; overflow-x: auto;
  font: 400 13px/1.65 var(--font-mono);
}
:root[data-theme="dark"] pre { background: #101116; }
pre code { background: none; border: 0; padding: 0; color: inherit; font-size: inherit; }

/* ---------- tables ---------- */
.tablewrap { overflow-x: auto; margin: 0 0 20px; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th {
  text-align: left; font-weight: 600; font-size: 14px;
  color: var(--ink);
  padding: 10px 20px 10px 0; border-bottom: 1.5px solid var(--line-strong);
}
td { padding: 12px 20px 12px 0; border-bottom: 1px solid var(--line); vertical-align: top; color: var(--ink-soft); line-height: 1.6; }
td:first-child, th:first-child { min-width: 130px; }
tr:last-child td { border-bottom: 0; }

/* ---------- chips: concept color coding ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600;
  padding: 1px 9px 2px; border-radius: 99px;
  border: 1px solid var(--line);
  background: var(--bg-raise);
  white-space: nowrap; vertical-align: baseline;
  color: var(--ink);
}
.chip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; }
.chip-incomm::before { background: var(--c-incomm); }
.chip-iqpay::before { background: var(--c-iqpay); }
.chip-muddy::before { background: var(--c-muddy); }
.chip-incomm { border-color: color-mix(in srgb, var(--c-incomm) 45%, var(--line)); }
.chip-iqpay { border-color: color-mix(in srgb, var(--c-iqpay) 45%, var(--line)); }
.chip-muddy { border-color: color-mix(in srgb, var(--c-muddy) 60%, var(--line)); }

/* ---------- power chain diagram ---------- */
.chain {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px;
  padding: 26px 24px;
  background: var(--bg-raise);
  border: 1px solid var(--line); border-radius: 12px;
  margin: 0 0 16px;
}

.chain .node { display: inline-block; text-align: center; }
.chain .arrow { color: var(--ink-faint); font-size: 15px; }
.node {
  font-size: 14px; font-weight: 600; color: var(--ink);
  padding: 10px 16px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--bg);
  border-top: 3px solid var(--line-strong);
}
.node-incomm { border-top-color: var(--c-incomm); }
.node-iqpay { border-top-color: var(--c-iqpay); }
.node-muddy { border-top-color: var(--c-muddy); }
.node small { display: block; font: 400 11px var(--font-body); color: var(--ink-faint); margin-top: 0; }

/* ---------- callouts ---------- */
.callout {
  display: grid; grid-template-columns: 20px 1fr; gap: 10px;
  padding: 14px 16px; margin: 0 0 18px;
  border: 1px solid var(--line); border-radius: 12px;
  font-size: 14.5px; line-height: 1.65;
  background: var(--note-bg);
}
.callout > .ico { font-size: 14px; line-height: 1.6; }
.callout p { margin: 0 0 8px; } .callout p:last-child { margin: 0; }
.callout b:first-child { color: var(--ink); }
.co-warn { background: var(--warn-bg); border-color: var(--warn-line); }
.co-warn b:first-child { color: var(--warn-ink); }
.co-gotcha { background: var(--gotcha-bg); border-color: var(--gotcha-line); }
.co-gotcha b:first-child { color: var(--gotcha-ink); }

/* ---------- cards grid ---------- */
.cardgrid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px; margin: 18px 0 8px;
}
a.card {
  display: block; padding: 18px 20px;
  background: var(--bg-raise);
  border: 1px solid var(--line); border-radius: 14px;
  text-decoration: none !important; color: var(--ink);
  transition: border-color .15s;
}
a.card:hover { border-color: var(--accent); }
.card h4 { margin: 0 0 4px; font-size: 15px; font-weight: 600; color: var(--ink); }
.card p { margin: 0; font-size: 13.5px; line-height: 1.55; color: var(--ink-soft); }
.card .k { font-size: 12px; font-weight: 500; color: var(--accent); display: block; margin-bottom: 6px; }

/* ---------- definition rows (glossary) ---------- */
dl { margin: 0; }
.defrow {
  display: grid; grid-template-columns: minmax(150px, 200px) 1fr; gap: 14px;
  padding: 12px 0; border-bottom: 1px solid var(--line);
}
.defrow:last-child { border-bottom: 0; }
.defrow dt { font-size: 14.5px; font-weight: 600; color: var(--ink); margin: 0; }
.defrow dt code { font-size: .88em; }
.defrow dd { margin: 0; font-size: 14.5px; color: var(--ink-soft); }
.defrow dd b { color: var(--ink); }

/* ---------- prev / next ---------- */
.pagenav {
  display: flex; justify-content: space-between; gap: 14px;
  margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line);
}
.pagenav a { flex: 1; max-width: 48%; text-decoration: none !important; padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; }
.pagenav a:hover { border-color: var(--accent); }
.pagenav .dir { font-size: 12px; color: var(--ink-faint); display: block; }
.pagenav .ttl { font-size: 14.5px; font-weight: 600; color: var(--ink); }
.pagenav a.next { text-align: right; margin-left: auto; }

footer.foot { margin-top: 28px; font-size: 12.5px; color: var(--ink-faint); }

/* ---------- Ask drawer ---------- */
.ask-fab {
  position: fixed; right: 24px; bottom: 24px; z-index: 60;
  display: flex; align-items: center; gap: 8px;
  padding: 11px 18px;
  background: var(--navy); color: #fff;
  border: 0; border-radius: 99px; cursor: pointer;
  font: 600 14px var(--font-body);
  box-shadow: 0 8px 24px -6px rgba(31,32,67,.45);
  transition: transform .15s;
}
.ask-fab:hover { transform: translateY(-2px); }
.ask-fab svg { width: 16px; height: 16px; stroke: #fff; fill: none; stroke-width: 2; }
:root[data-theme="dark"] .ask-fab { background: var(--peri); }

.ask-overlay {
  position: fixed; inset: 0; z-index: 69;
  background: rgba(15, 16, 32, .28);
  opacity: 0; pointer-events: none; transition: opacity .22s;
}
.ask-overlay.open { opacity: 1; pointer-events: auto; }

.ask-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 70;
  width: min(460px, 100vw);
  display: flex; flex-direction: column;
  background: var(--bg);
  border-left: 1px solid var(--line);
  box-shadow: -24px 0 64px -24px rgba(0,0,0,.35);
  transform: translateX(102%);
  transition: transform .26s cubic-bezier(.3,.8,.3,1);
}
.ask-drawer.open { transform: none; }
.ask-head {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--line);
}
.ask-head .ask-mark {
  width: 32px; height: 32px; flex: none; border-radius: 9px;
  background: linear-gradient(135deg, var(--navy), var(--peri));
  display: grid; place-items: center;
}
.ask-head .ask-mark svg { width: 16px; height: 16px; stroke: #fff; fill: none; stroke-width: 2; }
.ask-head b { font-size: 15px; color: var(--ink); display: block; letter-spacing: -.01em; }
.ask-head span { font-size: 12px; line-height: 1.5; color: var(--ink-faint); display: block; margin-top: 1px; }
.ask-close {
  margin-left: auto; flex: none;
  width: 30px; height: 30px; border-radius: 8px;
  border: 0; background: none; cursor: pointer;
  color: var(--ink-faint); font-size: 20px; line-height: 1;
}
.ask-close:hover { background: var(--bg-sunk); color: var(--ink); }

.ask-body {
  flex: 1; overflow-y: auto;
  display: flex; flex-direction: column; gap: 14px;
  padding: 20px;
  scrollbar-width: thin;
}
.msg-u {
  align-self: flex-end; max-width: 88%;
  padding: 9px 14px;
  background: var(--accent-soft); color: var(--ink);
  border-radius: 14px 14px 4px 14px;
  font-size: 14px; line-height: 1.55;
}
.msg-a { align-self: stretch; }
.msg-a .msg-label {
  display: flex; align-items: center; gap: 6px;
  font: 600 11px var(--font-body); letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0 0 6px;
}
.msg-a .msg-label::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: linear-gradient(135deg, var(--navy), var(--peri));
}
:root[data-theme="dark"] .msg-a .msg-label::before { background: var(--peri); }
.msg-a .msg-md {
  font-size: 14px; line-height: 1.65; color: var(--ink-soft);
  border-left: 2px solid var(--line);
  padding-left: 12px;
}
.msg-a .msg-md p { margin: 0 0 10px; }
.msg-a .msg-md p:last-child { margin: 0; }
.msg-a .msg-md ul, .msg-a .msg-md ol { margin: 0 0 10px; padding-left: 20px; }
.msg-a .msg-md li { margin: 0 0 4px; }
.msg-a .msg-md strong { color: var(--ink); }
.msg-a .msg-md code { font-size: 12.5px; }
.msg-a .msg-md pre {
  padding: 10px 12px; font-size: 12px; border-radius: 8px; margin: 0 0 10px;
}
.msg-a.err .msg-md { color: #b3362b; border-left-color: #b3362b; }
:root[data-theme="dark"] .msg-a.err .msg-md { color: #f08c85; border-left-color: #f08c85; }
.msg-a.thinking .msg-md { color: var(--ink-faint); font-style: italic; }

.ask-form {
  display: flex; gap: 8px; padding: 14px 16px;
  border-top: 1px solid var(--line);
  background: var(--bg);
}
.ask-form input {
  flex: 1; height: 40px; padding: 0 14px;
  font: 400 14px var(--font-body); color: var(--ink);
  background: var(--bg-sunk); border: 1px solid var(--line); border-radius: 10px;
  outline: none;
}
.ask-form input:focus { border-color: var(--line-strong); }
.ask-form button {
  height: 40px; padding: 0 18px;
  background: var(--navy); color: #fff;
  border: 0; border-radius: 10px; cursor: pointer;
  font: 600 13.5px var(--font-body);
}
.ask-form button:disabled { opacity: .5; cursor: default; }
:root[data-theme="dark"] .ask-form button { background: var(--peri); }

/* ---------- responsive ---------- */
@media (max-width: 1180px) { .toc { display: none; } }
@media (max-width: 900px) {
  #menuBtn { display: grid; }
  .searchbox { position: static; transform: none; width: min(260px, 38vw); margin-left: auto; }
  .topbar-spacer { display: none; }
  .sidebar {
    position: fixed; left: 0; top: var(--header-h); z-index: 40;
    background: var(--bg); transform: translateX(-100%);
    transition: transform .2s ease; width: min(300px, 84vw);
    padding-left: 20px;
    border-right: 1px solid var(--line);
    box-shadow: 0 12px 32px -8px rgba(0,0,0,.18);
  }
  body.nav-open .sidebar { transform: none; }
  .shell { padding: var(--header-h) 20px 0; }
  .defrow { grid-template-columns: 1fr; gap: 2px; }
}