:root {
  color-scheme: light;
  --ink: #0b1b33;
  --ink-soft: #3d4f66;
  --muted: #546578;
  --quiet: #4f6073;
  --line: #e4eaf2;
  --line-strong: #d3dce8;
  --paper: #f4f7fb;
  --paper-wash: #eef2ff;
  --white: #ffffff;
  --night: #0a1f3d;
  --night-deep: #050f22;
  --night-raised: #122b4a;
  --night-line: #1c3f66;
  --accent: #5b4dff;
  --accent-dark: #4338ca;
  --accent-soft: #eef0ff;
  --accent-mid: #9b93ff;
  --brand-blue: #2563eb;
  --brand-violet: #7c3aed;
  --brand-grad: linear-gradient(135deg, #2563eb 0%, #5b4dff 48%, #7c3aed 100%);
  --cyan: #22d3ee;
  --green: #0d9488;
  --green-soft: #e6f9f5;
  --amber: #c27803;
  --danger: #df1b41;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Public Sans", "Segoe UI", system-ui, sans-serif;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(11, 27, 51, 0.04), 0 1px 3px rgba(11, 27, 51, 0.05);
  --shadow-md: 0 8px 24px rgba(11, 27, 51, 0.08), 0 2px 6px rgba(11, 27, 51, 0.04);
  --shadow-lg: 0 28px 56px rgba(5, 15, 34, 0.42);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --topbar-h: 64px;
}

* { box-sizing: border-box; }

html {
  min-width: 320px;
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 480px at 12% -10%, rgba(91, 77, 255, 0.08), transparent 60%),
    radial-gradient(900px 420px at 92% 0%, rgba(37, 99, 235, 0.07), transparent 55%),
    var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

[hidden] { display: none !important; }

::selection {
  color: var(--ink);
  background: #c7c3ff;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: #c4ccd8;
  border: 2px solid transparent;
  border-radius: 999px;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background: #a8b2c2; background-clip: padding-box; border: 2px solid transparent; }

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.skip-link {
  position: fixed;
  z-index: 40;
  top: -60px;
  left: 14px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--ink);
  background: var(--white);
  box-shadow: var(--shadow-md);
  font-size: 14px;
  font-weight: 600;
}
.skip-link:focus { top: 12px; }

/* Reading progress */
.progress {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: var(--brand-grad);
  pointer-events: none;
  transform-origin: left center;
}

/* Top bar */
.topbar {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  height: var(--topbar-h);
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 clamp(20px, 5vw, 72px);
  color: #fff;
  background: rgba(6, 24, 44, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 0;
}

.brand-logo {
  display: block;
  width: auto;
  height: 46px;
  object-fit: contain;
}

.brand-logo--footer {
  height: 28px;
}

.toplinks {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.4vw, 32px);
  color: rgba(255, 255, 255, 0.72);
  font-size: 13.5px;
  font-weight: 500;
}

.toplinks a,
.footer-links a {
  transition: color 160ms var(--ease);
}

.toplinks a:hover { color: #fff; }

.top-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-sm);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition:
    transform 180ms var(--ease),
    background 180ms var(--ease),
    border-color 180ms var(--ease),
    box-shadow 180ms var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.12);
}

.btn.primary {
  border-color: transparent;
  color: var(--night);
  background: #fff;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn.primary:hover {
  background: #f0efff;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.16);
}

/* Hero — equal square grid + blended artwork */
.hero {
  --hero-grid-size: 40px;
  position: relative;
  overflow: hidden;
  padding: 80px clamp(20px, 5vw, 72px) 56px;
  color: #fff;
  background:
    radial-gradient(ellipse 90% 70% at 18% 0%, rgba(129, 140, 248, 0.5), transparent 55%),
    radial-gradient(ellipse 65% 50% at 88% 95%, rgba(59, 130, 246, 0.34), transparent 50%),
    linear-gradient(155deg, #181d52 0%, #151348 40%, #0b122e 100%);
}

.hero-art-blend {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-art--mesh {
  position: absolute;
  inset: -2%;
  width: 104%;
  height: 104%;
  object-fit: cover;
  opacity: 0.36;
  mix-blend-mode: soft-light;
  filter: saturate(1.2) contrast(1.04);
}

/* Soft floating art blobs that melt into the wash */
.hero-art--float {
  position: absolute;
  object-fit: cover;
  border-radius: 32px;
  pointer-events: none;
  mix-blend-mode: screen;
}

.hero-art--a {
  width: min(420px, 40vw);
  height: min(420px, 40vw);
  top: -4%;
  right: 2%;
  transform: rotate(4deg);
  opacity: 0.58;
  filter: blur(5px) saturate(1.25);
  mix-blend-mode: screen;
}

.hero-art--b {
  width: min(360px, 34vw);
  height: min(360px, 34vw);
  bottom: 6%;
  left: -3%;
  transform: rotate(-8deg);
  opacity: 0.5;
  filter: blur(6px) saturate(1.2);
  mix-blend-mode: screen;
}

.hero-art--c {
  width: min(260px, 26vw);
  height: min(260px, 26vw);
  top: 42%;
  left: 40%;
  transform: rotate(2deg);
  opacity: 0.36;
  filter: blur(8px) saturate(1.15);
  mix-blend-mode: soft-light;
}

.hero-glow {
  position: absolute;
  z-index: 0;
  inset: -18% 20% 30% -8%;
  background:
    radial-gradient(circle at 28% 35%, rgba(167, 139, 250, 0.45), transparent 58%),
    radial-gradient(circle at 72% 55%, rgba(96, 165, 250, 0.3), transparent 52%);
  filter: blur(40px);
  pointer-events: none;
}

/* Equal square boxes — SVG tile guarantees 1:1 cells */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-color: transparent;
  background-image: url("assets/art/grid-tile.svg");
  background-size: 40px 40px;
  background-repeat: repeat;
  background-position: 0 0;
  image-rendering: pixelated;
  mask-image: linear-gradient(180deg, #000 0%, #000 70%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 70%, transparent 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  /* background:
    linear-gradient(180deg, rgba(10, 14, 40, 0.08) 0%, rgba(8, 12, 32, 0.22) 50%, rgba(4, 8, 20, 0.9) 100%),
    radial-gradient(ellipse 50% 40% at 70% 18%, rgba(199, 210, 254, 0.12), transparent 70%); */
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  width: min(1120px, 100%);
  margin: 0 auto;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: clamp(36px, 5vw, 72px);
}

.hero-copy-col { min-width: 0; }

.hero h1 {
  max-width: 14ch;
  margin: 0 0 18px;
  font: 700 clamp(40px, 5.2vw, 64px)/1.08 var(--sans);
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.hero h1 span {
  color: #c4b5fd;
}

.hero-copy-col > p,
.hero-copy {
  max-width: 46ch;
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 18px;
  line-height: 1.65;
}

.hero code,
.hero-note code,
.article code {
  font-family: var(--mono);
  font-size: 0.9em;
  font-weight: 500;
}

.hero code,
.hero-note code {
  color: #c4b5fd;
}

.article code {
  padding: 0.12em 0.35em;
  border-radius: 4px;
  color: var(--accent-dark);
  background: var(--accent-soft);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
}

.hero-cta .btn {
  min-height: 42px;
  padding: 0 16px;
}

.hero-note {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  font-weight: 500;
}

.code-window {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(199, 210, 254, 0.28);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(129, 140, 248, 0.22), transparent 45%),
    linear-gradient(165deg, rgba(15, 23, 55, 0.92) 0%, rgba(8, 14, 36, 0.96) 100%);
  box-shadow:
    var(--shadow-lg),
    0 0 0 1px rgba(165, 180, 252, 0.1),
    0 0 60px rgba(99, 102, 241, 0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transform: translateZ(0);
}

.code-window::before {
  content: "";
  position: absolute;
  top: -45%;
  right: -25%;
  width: 60%;
  height: 75%;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.4), transparent 70%);
  pointer-events: none;
}

.window-head {
  display: flex;
  min-height: 42px;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ff5f57;
}
.dot:nth-child(2) { background: #febc2e; }
.dot:nth-child(3) { background: #28c840; }

.window-title {
  margin-left: auto;
  color: rgba(255, 255, 255, 0.45);
  font: 500 11px/1 var(--mono);
  letter-spacing: 0.02em;
}

.code-content {
  overflow-x: auto;
  padding: 20px 22px;
  color: #d6deeb;
  font: 12.5px/1.85 var(--mono);
  white-space: pre;
}

.code-content .purple { color: #b8b0ff; }
.code-content .cyan { color: #7ee7ff; }
.code-content .green { color: #7ee0b8; }
.code-content .dim { color: rgba(214, 222, 235, 0.45); }

.response {
  margin: 0 14px 14px;
  padding: 12px 14px;
  border: 1px solid rgba(13, 148, 136, 0.28);
  border-radius: var(--radius-sm);
  color: rgba(214, 222, 235, 0.85);
  background: rgba(6, 24, 44, 0.65);
  font: 11.5px/1.7 var(--mono);
}

.response strong {
  color: #5eead4;
  font-weight: 500;
}

.hero-stats {
  position: relative;
  z-index: 1;
  display: grid;
  width: min(1120px, 100%);
  margin: 52px auto 0;
  grid-template-columns: repeat(4, 1fr);
  gap: 0 8px;
  padding: 10px 0 0;
  border-top: 1px solid rgba(199, 210, 254, 0.28);
}

.stat {
  min-height: 84px;
  padding: 22px 18px 12px;
}

.stat + .stat {
  border-left: 1px solid rgba(199, 210, 254, 0.22);
}

.stat strong {
  display: block;
  margin-bottom: 8px;
  color: #ffffff;
  font: 700 17px/1.3 var(--sans);
  letter-spacing: -0.02em;
  text-shadow: 0 1px 12px rgba(129, 140, 248, 0.35);
}

.stat span {
  color: rgba(226, 232, 255, 0.88);
  font-size: 14.5px;
  line-height: 1.5;
  font-weight: 500;
}

.trustline {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(16px, 3.5vw, 40px);
  padding: 16px 24px;
  border-bottom: 1px solid var(--line);
  color: var(--quiet);
  background:
    linear-gradient(90deg, rgba(37, 99, 235, 0.04), rgba(124, 58, 237, 0.06), rgba(37, 99, 235, 0.04)),
    var(--white);
  font: 500 11px/1.4 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Docs layout */
.layout {
  display: grid;
  max-width: 1280px;
  margin: 0 auto;
  grid-template-columns: 240px minmax(0, 1fr) 168px;
  align-items: start;
  gap: clamp(28px, 3.5vw, 48px);
  padding: 48px clamp(20px, 4vw, 48px) 96px;
}

.sidebar {
  position: sticky;
  top: calc(var(--topbar-h) + 24px);
  max-height: calc(100vh - var(--topbar-h) - 40px);
  overflow: auto;
  padding: 0 8px 20px 0;
  scrollbar-width: thin;
  scrollbar-color: #c9d1dc transparent;
}

.docs-search {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  padding: 9px 11px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--muted);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: border-color 160ms var(--ease), box-shadow 160ms var(--ease);
}

.docs-search:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 91, 255, 0.15);
}

.docs-search input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font-size: 13px;
}

.docs-search input::placeholder { color: var(--muted); }

.docs-search kbd {
  flex-shrink: 0;
  padding: 2px 6px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  color: var(--muted);
  background: var(--paper);
  font: 500 11px/1.4 var(--mono);
}

.search-status {
  margin: -14px 0 16px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.45;
}

.search-status:empty { display: none; }

.mobile-jump { display: none; }
.mobile-jump:disabled {
  color: var(--muted);
  background: var(--paper);
  cursor: not-allowed;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

.side-group { margin-bottom: 22px; }

.side-label {
  margin: 0 0 8px 10px;
  color: var(--quiet);
  font: 600 11px/1.4 var(--sans);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.side-link {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 1px 0;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
  font-size: 14.5px;
  line-height: 1.35;
  transition: color 140ms var(--ease), background 140ms var(--ease);
}

.side-link:hover {
  color: var(--accent-dark);
  background: var(--accent-soft);
}

.side-link.active {
  color: var(--accent-dark);
  background: var(--accent-soft);
  font-weight: 600;
  box-shadow: inset 3px 0 0 var(--accent);
}

.side-link .ico {
  width: 15px;
  color: var(--quiet);
  text-align: center;
  font-size: 12px;
  opacity: 0.85;
}

.side-link.active .ico { color: var(--accent-dark); }

.side-sub { padding-left: 22px; }
.side-sub .side-link {
  padding-top: 5px;
  padding-bottom: 5px;
  font-size: 12.5px;
}

.side-tree {
  margin: 6px 0;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  transition: border-color 160ms var(--ease), background 160ms var(--ease), box-shadow 160ms var(--ease);
}

.side-tree[open],
.side-tree.is-active {
  border-color: var(--line);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.side-tree-sum {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  user-select: none;
  margin: 0;
  padding: 8px 10px;
  border-radius: calc(var(--radius-sm) - 1px);
  color: var(--ink-soft);
  font: 600 13px/1.35 var(--sans);
  transition: color 140ms var(--ease), background 140ms var(--ease);
}

.side-tree-sum::-webkit-details-marker,
.side-tree-sum::marker {
  display: none;
  content: "";
}

.side-tree-chevron {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  color: var(--quiet);
  background: var(--paper);
  transition: transform 180ms var(--ease), border-color 140ms var(--ease), background 140ms var(--ease), color 140ms var(--ease);
}

.side-tree-chevron::before {
  content: "";
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(-45deg) translate(-1px, -1px);
}

.side-tree[open] > .side-tree-sum .side-tree-chevron {
  transform: rotate(90deg);
  color: var(--accent-dark);
  border-color: #c7c3ff;
  background: var(--accent-soft);
}

.side-tree-label {
  flex: 1 1 auto;
  min-width: 0;
}

.side-tree-count {
  flex: 0 0 auto;
  min-width: 1.5rem;
  padding: 1px 6px;
  border-radius: 999px;
  color: var(--muted);
  background: var(--paper);
  border: 1px solid var(--line);
  font: 600 10.5px/1.4 var(--mono);
  text-align: center;
}

.side-tree[open] > .side-tree-sum .side-tree-count,
.side-tree.is-active > .side-tree-sum .side-tree-count {
  color: var(--accent-dark);
  background: var(--accent-soft);
  border-color: #d4d1ff;
}

.side-tree-sum:hover {
  color: var(--accent-dark);
  background: var(--accent-soft);
}

.side-tree-sum:hover .side-tree-chevron {
  border-color: #c7c3ff;
  color: var(--accent-dark);
}

.side-tree-sum:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.side-tree.is-active > .side-tree-sum {
  color: var(--accent-dark);
}

.side-tree .side-sub {
  position: relative;
  margin: 0 8px 8px 12px;
  padding: 4px 0 4px 12px;
  border-left: 1px solid var(--line-strong);
}

.side-tree .side-sub .side-link {
  position: relative;
  margin: 1px 0;
  padding: 6px 10px;
  font-size: 12.5px;
  color: var(--muted);
}

.side-tree .side-sub .side-link::before {
  content: "";
  position: absolute;
  top: 50%;
  left: -13px;
  width: 8px;
  height: 1px;
  background: var(--line-strong);
}

.side-tree .side-sub .side-link:hover {
  color: var(--accent-dark);
}

.side-tree .side-sub .side-link.active {
  color: var(--accent-dark);
  background: var(--accent-soft);
  box-shadow: none;
}

.side-tree .side-sub .side-link.active::before {
  background: var(--accent);
  width: 10px;
  height: 2px;
  border-radius: 1px;
}

@media (prefers-reduced-motion: reduce) {
  .side-tree,
  .side-tree-sum,
  .side-tree-chevron {
    transition: none;
  }
}

.article h4[id],
.article .sample-subhead[id] {
  scroll-margin-top: calc(var(--topbar-h) + 32px);
}


.rightnav {
  position: sticky;
  top: calc(var(--topbar-h) + 28px);
  align-self: start;
  padding: 0 0 0 14px;
  border-left: 1px solid var(--line);
}

.rightnav strong {
  display: block;
  margin-bottom: 10px;
  color: var(--quiet);
  font: 600 11px/1.4 var(--sans);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.rightnav a {
  display: block;
  position: relative;
  padding: 5px 0 5px 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.4;
  transition: color 140ms var(--ease);
}

.rightnav a:hover { color: var(--accent-dark); }

.rightnav a.active {
  color: var(--ink);
  font-weight: 600;
}

/* Article / reading column */
.article {
  min-width: 0;
  max-width: 720px;
  padding-top: 4px;
}

.article section {
  scroll-margin-top: calc(var(--topbar-h) + 28px);
  padding-bottom: 8px;
}

.article h3[id],
.article .endpoint[id] {
  scroll-margin-top: calc(var(--topbar-h) + 32px);
}

.crumb {
  margin-bottom: 18px;
  color: var(--muted);
  font: 500 12.5px/1.5 var(--sans);
}

.crumb span { color: var(--accent-dark); font-weight: 600; }

.article h2 {
  margin: 0 0 14px;
  font: 700 clamp(28px, 3vw, 36px)/1.15 var(--sans);
  letter-spacing: -0.03em;
  color: var(--ink);
}

.lead {
  max-width: 62ch;
  margin: 0 0 28px;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.7;
}

.article h3 {
  margin: 48px 0 12px;
  font: 700 22px/1.3 var(--sans);
  letter-spacing: -0.025em;
  color: var(--ink);
}

.sample-subhead {
  margin: 32px 0 10px;
  font: 600 16px/1.35 var(--sans);
  letter-spacing: -0.02em;
  color: var(--ink);
}

.article p.body {
  max-width: 68ch;
  margin: 0 0 18px;
  color: var(--ink-soft);
  font-size: 16.5px;
  line-height: 1.75;
}

.callout {
  display: flex;
  gap: 12px;
  margin: 24px 0 36px;
  padding: 16px 18px;
  border: 1px solid #ddd8ff;
  border-radius: var(--radius);
  color: #2d2a4a;
  background: linear-gradient(135deg, #f8f7ff 0%, #eef2ff 55%, #f0efff 100%);
  box-shadow: var(--shadow-sm);
}

.callout--nutshell {
  border-color: rgba(91, 77, 255, 0.28);
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.06), transparent 40%),
    linear-gradient(180deg, #f7f6ff, #ecebff);
}

.callout-icon {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  margin-top: 1px;
  border-radius: 6px;
  color: #fff;
  background: var(--brand-grad);
  font-size: 12px;
  font-weight: 700;
}

.callout p {
  margin: 0;
  color: #3d3a55;
  font-size: 14px;
  line-height: 1.65;
}

.callout strong {
  color: var(--ink);
  font-weight: 600;
}

.steps {
  display: grid;
  margin: 22px 0 28px;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.step {
  min-width: 0;
  padding: 16px 8px 8px 0;
  border-top: 2px solid var(--accent);
}

.step-no {
  color: var(--accent-dark);
  font: 600 11px/1.4 var(--mono);
  letter-spacing: 0.04em;
}

.step h4,
.feature h4 {
  margin: 10px 0 6px;
  font: 600 14.5px/1.35 var(--sans);
  letter-spacing: -0.015em;
  color: var(--ink);
}

.step p,
.feature p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13.5px;
  line-height: 1.6;
}

.tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 20px 0 0;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
}

.tab {
  position: relative;
  min-height: 36px;
  padding: 8px 14px;
  border: 0;
  border-radius: 5px;
  color: var(--muted);
  background: transparent;
  font-size: 13px;
  font-weight: 500;
  transition: color 140ms var(--ease), background 140ms var(--ease);
}

.tab:hover { color: var(--accent-dark); background: var(--accent-soft); }

.tab.active {
  color: var(--accent-dark);
  background: var(--accent-soft);
  font-weight: 600;
}

.snippet {
  overflow: hidden;
  margin: 0 0 28px;
  border: 1px solid #1a3a5c;
  border-radius: var(--radius);
  color: #e8eef6;
  background: #0a2540;
  box-shadow: var(--shadow-md);
}

.snippet-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 42px;
  padding: 8px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(232, 238, 246, 0.65);
  background: rgba(255, 255, 255, 0.04);
  font: 500 11px/1 var(--mono);
  letter-spacing: 0.03em;
}

.copy {
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 5px;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  font: 500 12px/1 var(--sans);
  transition: background 140ms var(--ease), border-color 140ms var(--ease);
}

.copy:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.28);
}

.copy-error {
  border-color: rgba(223, 27, 65, 0.5);
  color: #ffd4dc;
  background: rgba(223, 27, 65, 0.2);
}

pre {
  overflow: auto;
  margin: 0;
  padding: 18px 20px;
  color: #e8eef6;
  font: 12.5px/1.75 var(--mono);
  tab-size: 2;
}

pre .kw { color: #b8b0ff; }
pre .str { color: #7ee0b8; }
pre .cm { color: rgba(232, 238, 246, 0.45); }
pre .key { color: #7ee7ff; }

.endpoint {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 10px 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: border-color 160ms var(--ease), box-shadow 160ms var(--ease);
}

.endpoint:hover {
  border-color: #c7c3ff;
  box-shadow: 0 0 0 3px rgba(99, 91, 255, 0.08);
}

.method {
  flex: 0 0 auto;
  min-width: 48px;
  padding: 4px 8px;
  border-radius: 4px;
  text-align: center;
  font: 600 11px/1.4 var(--mono);
  letter-spacing: 0.02em;
}

.endpoint .method,
.method {
  color: #0f766e;
  background: var(--green-soft);
}

.endpoint[id="api-virtual-accounts"] .method,
.endpoint[id="api-transfers"] .method {
  color: #4338ca;
  background: var(--accent-soft);
}

.endpoint[id="api-transactions"] .method,
.endpoint[id="api-customers"] .method {
  color: #0369a1;
  background: #e0f2fe;
}

.path {
  overflow-wrap: anywhere;
  color: var(--ink);
  font: 500 13px/1.45 var(--mono);
}

.endpoint small {
  margin-left: auto;
  color: var(--muted);
  font-size: 12.5px;
  white-space: nowrap;
}

.feature-grid {
  display: grid;
  margin-top: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 28px;
}

.feature {
  display: grid;
  min-height: 96px;
  grid-template-columns: 24px minmax(0, 1fr);
  align-content: start;
  column-gap: 10px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.feature-icon {
  display: grid;
  width: 20px;
  height: 20px;
  place-items: center;
  margin-top: 2px;
  color: var(--accent-dark);
  font: 600 13px/1 var(--mono);
}

.feature h4 { align-self: center; margin: 0; }
.feature p { grid-column: 2; margin-top: 6px; }

.bottom-cta {
  position: relative;
  overflow: hidden;
  margin-top: 56px;
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  color: #fff;
  background: linear-gradient(145deg, #050f22 0%, #122b4a 55%, #1e1b4b 100%);
  border: 1px solid rgba(165, 180, 252, 0.18);
}

.bottom-cta-art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.28;
  mix-blend-mode: screen;
  pointer-events: none;
}

.bottom-cta-inner {
  position: relative;
  z-index: 1;
}

.bottom-cta h3 {
  margin: 0 0 8px;
  color: #fff;
  font: 600 20px/1.3 var(--sans);
  letter-spacing: -0.02em;
}

.bottom-cta p {
  max-width: 48ch;
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14.5px;
  line-height: 1.65;
}

.bottom-cta a {
  display: inline-flex;
  align-items: center;
  margin-top: 16px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--night);
  background: #fff;
  font-size: 13.5px;
  font-weight: 600;
  transition: transform 160ms var(--ease), box-shadow 160ms var(--ease);
}

.bottom-cta a:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(20px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.55);
  background: var(--night-deep);
  font-size: 13px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}


.footer-links { display: flex; gap: 22px; }
.footer-links a { color: rgba(255, 255, 255, 0.55); }
.footer-links a:hover { color: #fff; }

@media (max-width: 1080px) {
  .layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 32px;
  }
  .rightnav { display: none; }
  .hero-inner { gap: 32px; }
}

@media (max-width: 760px) {
  :root { --topbar-h: 58px; }

  .topbar { padding: 0 18px; }
  .toplinks { display: none; }
  .top-actions .btn:not(.primary) { display: none; }

  .hero { padding: 56px 20px 40px; }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .hero h1 {
    max-width: none;
    font-size: clamp(36px, 9vw, 48px);
  }
  .hero-copy-col > p { font-size: 16px; }
  .code-window { max-width: 100%; }

  .hero-stats {
    margin-top: 36px;
    grid-template-columns: 1fr 1fr;
  }
  .stat {
    min-height: 72px;
    padding: 16px 12px;
  }
  .stat:nth-child(odd) { border-left: 0; }
  .stat:nth-child(even) { border-left: 1px solid rgba(255, 255, 255, 0.1); }
  .stat:nth-child(n + 3) { border-top: 1px solid rgba(255, 255, 255, 0.1); }

  .trustline {
    gap: 12px 18px;
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .trustline::-webkit-scrollbar { display: none; }

  .layout {
    display: block;
    padding: 28px 20px 64px;
  }

  .sidebar {
    position: static;
    display: flex;
    max-height: none;
    overflow: visible;
    flex-direction: column;
    margin-bottom: 28px;
    padding: 0;
  }

  .mobile-jump {
    display: block;
    width: 100%;
    min-height: 44px;
    margin: 0 0 12px;
    padding: 0 12px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    color: var(--ink);
    background: var(--white);
    font-size: 14px;
    order: 3;
  }

  .docs-search { order: 1; margin-bottom: 12px; }
  .search-status { order: 2; margin: -4px 0 12px; }
  .side-group { display: none; }

  .article { max-width: none; }
  .article h2 { font-size: 30px; }
  .article h3 { margin-top: 40px; font-size: 19px; }
  .lead { font-size: 16px; }
  .steps { gap: 12px; }
  .footer { flex-wrap: wrap; padding: 24px 20px; }
}

@media (max-width: 520px) {
  .hero { padding: 48px 18px 32px; }
  .hero h1 { font-size: clamp(34px, 11vw, 42px); }
  .hero-cta {
    align-items: stretch;
    flex-direction: column;
  }
  .hero-cta .btn { width: 100%; }
  .code-content { padding: 16px; font-size: 11.5px; }
  .response { font-size: 11px; }
  .layout { padding-right: 16px; padding-left: 16px; }
  .steps { grid-template-columns: 1fr; gap: 4px; }
  .step { padding: 14px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .endpoint { flex-wrap: wrap; gap: 8px; }
  .endpoint small { margin-left: 0; width: 100%; }
  .tabs { overflow-x: auto; scrollbar-width: none; }
  .tabs::-webkit-scrollbar { display: none; }
  .tab { flex: 0 0 auto; padding: 0 12px; }
  .footer { display: grid; grid-template-columns: 1fr; }
  .footer-links { flex-wrap: wrap; gap: 12px 18px; }
  .bottom-cta { padding: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}


.api-doc {
  margin: 28px 0 40px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.api-doc:last-child {
  border-bottom: 0;
}

.api-doc .endpoint {
  margin-top: 0;
}

.api-doc .body {
  margin-top: 10px;
}

.api-doc .api-lang-tabs {
  margin: 16px 0 10px;
}

.api-doc .api-req-panel[hidden] {
  display: none;
}


.api-catalog {
  margin: 22px 0 36px;
  padding: 16px 16px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.api-catalog-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 16px;
  margin-bottom: 8px;
}

.api-catalog-title {
  margin: 0;
  font: 600 15px/1.35 var(--sans);
  letter-spacing: -0.02em;
  color: var(--ink);
}

.api-catalog-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.guide-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  border: 1px solid #d4d1ff;
  border-radius: 999px;
  color: var(--accent-dark);
  background: var(--accent-soft);
  font: 600 12px/1.3 var(--sans);
  transition: background 140ms var(--ease), border-color 140ms var(--ease);
}

.guide-pill:hover {
  border-color: var(--accent);
  background: #e7e5ff;
}

.endpoint--catalog {
  margin: 8px 0;
}

.endpoint--catalog small {
  color: var(--muted);
}

.nav-hint {
  margin-left: 4px;
  padding: 1px 6px;
  border-radius: 999px;
  color: var(--accent-dark);
  background: var(--accent-soft);
  font: 600 9.5px/1.3 var(--mono);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

@media (max-width: 720px) {
  .api-catalog { padding: 14px 12px 6px; }
}


.feature-doc {
  margin: 28px 0 40px;
  padding-bottom: 8px;
  scroll-margin-top: calc(var(--topbar-h) + 28px);
}

.feature-doc h3 {
  margin: 0 0 12px;
  font: 600 20px/1.3 var(--sans);
  letter-spacing: -0.025em;
  color: var(--ink);
}



.resource-list {
  display: grid;
  gap: 10px;
  margin: 16px 0 8px;
}

.resource-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: border-color 140ms var(--ease), box-shadow 140ms var(--ease);
}

.resource-card:hover {
  border-color: #c7c3ff;
  box-shadow: 0 0 0 3px rgba(99, 91, 255, 0.08);
}

.resource-card strong {
  color: var(--ink);
  font: 600 14px/1.35 var(--sans);
}

.resource-card span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

#api-guides {
  margin-bottom: 8px;
}

#api-guides .lead {
  margin-bottom: 12px;
}


/* ── Discover band (Paystack-style capability cards) ── */
.discover {
  position: relative;
  padding: 48px clamp(20px, 5vw, 72px) 28px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(700px 280px at 0% 0%, rgba(91, 77, 255, 0.07), transparent 60%),
    radial-gradient(640px 260px at 100% 20%, rgba(37, 99, 235, 0.06), transparent 55%),
    linear-gradient(180deg, #ffffff 0%, #f7f9fc 100%);
}

.discover-inner {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.discover-head {
  max-width: 48ch;
  margin-bottom: 28px;
}

.discover-head h2 {
  margin: 0 0 10px;
  font: 700 clamp(26px, 3vw, 34px)/1.15 var(--sans);
  letter-spacing: -0.03em;
  color: var(--ink);
}

.discover-head p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.65;
}

.discover-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.discover-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition:
    transform 220ms var(--ease),
    border-color 220ms var(--ease),
    box-shadow 220ms var(--ease);
}

.discover-card:hover {
  transform: translateY(-4px);
  border-color: #c7c3ff;
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(91, 77, 255, 0.08);
}

.discover-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: linear-gradient(145deg, #1e1b4b, #0f2744);
}

.discover-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 420ms var(--ease);
}

.discover-card:hover .discover-media img {
  transform: scale(1.04);
}

.discover-media--tint img {
  object-position: center 30%;
  filter: saturate(1.15) brightness(0.92);
}

.discover-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 8px;
  padding: 16px 16px 18px;
}

.discover-body h3 {
  margin: 0;
  font: 600 16px/1.3 var(--sans);
  letter-spacing: -0.02em;
  color: var(--ink);
}

.discover-body p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13.5px;
  line-height: 1.55;
}

.discover-body code {
  font-family: var(--mono);
  font-size: 0.92em;
  color: var(--accent-dark);
}

.discover-go {
  margin-top: auto;
  padding-top: 10px;
  color: var(--accent-dark);
  font: 600 13px/1.3 var(--sans);
}

/* Guide banners — horizontal Paystack-style section headers */
.guide-banner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(160px, 0.85fr);
  align-items: stretch;
  gap: 0;
  margin: 8px 0 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(120deg, #ffffff 0%, #f4f6ff 55%, #eef2ff 100%);
  box-shadow: var(--shadow-sm);
}

.guide-banner-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
  padding: 28px 28px 28px 26px;
  min-width: 0;
}

.guide-banner h3 {
  margin: 0 !important;
  font: 700 clamp(24px, 2.6vw, 30px)/1.2 var(--sans) !important;
  letter-spacing: -0.03em !important;
  color: var(--ink) !important;
}

.guide-banner-note {
  margin: 0;
  max-width: 42ch;
  color: var(--ink-soft);
  font-size: 15.5px;
  line-height: 1.55;
  font-weight: 500;
}

.guide-banner-media {
  position: relative;
  min-height: 148px;
  background: linear-gradient(145deg, #1e1b4b, #0f2744);
}

.guide-banner-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 148px;
  object-fit: cover;
  object-position: center;
}

.guide-banner-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(244, 246, 255, 0.55), transparent 35%);
  pointer-events: none;
}

.feature-art { display: none; }

.feature-doc::after {
  content: "";
  display: table;
  clear: both;
}

.article {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.72), transparent 120px);
}

.side-link.active {
  background: linear-gradient(90deg, #eef0ff, #f5f3ff);
}

.btn.primary {
  background: #fff;
}

.topbar {
  background: rgba(5, 15, 34, 0.88);
}

@media (max-width: 1080px) {
  .discover-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .discover {
    padding: 36px 18px 20px;
  }
  .discover-grid {
    grid-template-columns: 1fr;
  }
  .guide-banner {
    grid-template-columns: 1fr;
  }
  .guide-banner-copy {
    padding: 22px 20px 18px;
  }
  .guide-banner-media {
    min-height: 140px;
    order: -1;
  }
  .guide-banner-media::after {
    background: linear-gradient(180deg, transparent 40%, rgba(244, 246, 255, 0.7));
  }
  .hero {
    --hero-grid-size: 40px;
  }
  .hero::before {
    background-size: 40px 40px;
  }
  .hero-art--float {
    filter: blur(16px) saturate(1.15);
    opacity: 0.28;
  }
  .hero-art--a { width: 220px; height: 220px; }
  .hero-art--b { width: 180px; height: 180px; }
  .hero-art--c { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .discover-card,
  .discover-card:hover,
  .discover-media img,
  .discover-card:hover .discover-media img {
    transition: none;
    transform: none;
  }
}