:root {
  --api-bg: #0b0b0c;
  --api-bg-elevated: rgba(17, 17, 18, 0.92);
  --api-surface: rgba(20, 20, 21, 0.84);
  --api-surface-soft: rgba(28, 28, 30, 0.74);
  --api-surface-warm: rgba(48, 41, 27, 0.34);
  --api-line: rgba(255, 255, 255, 0.09);
  --api-line-soft: rgba(255, 255, 255, 0.05);
  --api-copy: rgba(241, 237, 230, 0.95);
  --api-copy-soft: rgba(222, 214, 198, 0.74);
  --api-copy-faint: rgba(198, 186, 168, 0.48);
  --api-gold: #d3af63;
  --api-gold-bright: #efd79d;
  --api-gold-soft: rgba(211, 175, 99, 0.16);
  --api-shadow: 0 28px 90px rgba(0, 0, 0, 0.34);
  --api-radius-xl: 8px;
  --api-radius-lg: 6px;
  --api-radius-md: 4px;
  --api-radius-sm: 2px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background-color: var(--api-bg);
  overscroll-behavior-y: none;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background-color: var(--api-bg);
  background:
    radial-gradient(circle at top left, rgba(211, 175, 99, 0.08), transparent 26%),
    radial-gradient(circle at 82% 12%, rgba(255, 255, 255, 0.05), transparent 18%),
    linear-gradient(180deg, #101011 0%, var(--api-bg) 100%);
  color: var(--api-copy);
}

body {
  position: relative;
  overflow-x: hidden;
  overscroll-behavior-y: none;
  font-family: "Manrope", "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle, rgba(255, 255, 255, 0.08) 0 0.7px, transparent 0.9px) 0 0 / 42px 42px,
    repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.022) 0 1px, transparent 1px 8px);
  opacity: 0.18;
  transform: translateZ(0);
}

a {
  color: inherit;
  text-decoration: none;
}

code,
pre {
  font-family: "JetBrains Mono", "Cascadia Code", "SFMono-Regular", monospace;
}

.api-center-shell {
  position: relative;
  min-height: 100vh;
  isolation: isolate;
  background-color: var(--api-bg);
}

.api-topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--api-line-soft);
  background: rgba(10, 10, 11, 0.82);
  backdrop-filter: blur(18px);
}

.api-topbar-shell {
  width: min(1440px, calc(100% - 48px));
  margin: 0 auto;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.api-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.9);
  font: 700 11px/1 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.28em;
}

.api-brand-mark {
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  background: url("/assets/logo-light.svg") center / contain no-repeat;
}

.api-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.api-nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: var(--api-radius-sm);
  color: rgba(233, 229, 221, 0.68);
  font: 600 11px/1 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.api-nav-link:hover,
.api-nav-link:focus-visible {
  color: rgba(255, 255, 255, 0.92);
  background: rgba(255, 255, 255, 0.05);
}

.api-nav-link.is-active {
  color: var(--api-gold-bright);
  background: rgba(211, 175, 99, 0.08);
}

.api-nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 7px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(239, 215, 157, 0.9), transparent);
}

.api-docs-shell {
  width: min(1440px, calc(100% - 48px));
  margin: 0 auto;
  padding: 32px 0 80px;
  display: grid;
  grid-template-columns: minmax(250px, 300px) minmax(0, 1fr);
  gap: 32px;
}

.api-sidebar {
  min-width: 0;
}

.api-mobile-toc-toggle {
  display: none;
}

.api-sidebar-inner {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 18px;
  max-height: calc(100vh - 112px);
  overflow: auto;
  padding-right: 4px;
  scrollbar-width: thin;
  scrollbar-color: rgba(211, 175, 99, 0.56) rgba(255, 255, 255, 0.03);
  scrollbar-gutter: stable;
}

.api-sidebar-inner::-webkit-scrollbar {
  width: 10px;
}

.api-sidebar-inner::-webkit-scrollbar-track {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01)),
    rgba(10, 10, 11, 0.76);
  border-left: 1px solid rgba(255, 255, 255, 0.04);
}

.api-sidebar-inner::-webkit-scrollbar-thumb {
  border: 2px solid rgba(10, 10, 11, 0.88);
  border-radius: var(--api-radius-sm);
  background:
    linear-gradient(180deg, rgba(239, 215, 157, 0.72), rgba(211, 175, 99, 0.38)),
    rgba(211, 175, 99, 0.44);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.api-sidebar-inner::-webkit-scrollbar-thumb:hover,
.api-sidebar-inner::-webkit-scrollbar-thumb:active {
  background:
    linear-gradient(180deg, rgba(248, 226, 171, 0.84), rgba(211, 175, 99, 0.5)),
    rgba(211, 175, 99, 0.56);
}

.api-sidebar-inner::-webkit-scrollbar-corner {
  background: transparent;
}

.api-sidebar-panel,
.api-doc-section,
.api-link-group-card {
  border: 1px solid var(--api-line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02)),
    var(--api-surface);
  box-shadow: var(--api-shadow);
  backdrop-filter: blur(18px);
}

.api-sidebar-panel {
  padding: 22px;
  border-radius: var(--api-radius-xl);
}

.api-sidebar-panel-soft {
  background:
    linear-gradient(180deg, rgba(211, 175, 99, 0.07), rgba(255, 255, 255, 0.02)),
    var(--api-surface-warm);
}

.api-sidebar-kicker,
.api-sidebar-label,
.api-section-kicker,
.api-card-kicker,
.api-metric-label {
  color: var(--api-copy-faint);
  font: 700 10px/1.4 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.api-sidebar-panel h1 {
  margin: 14px 0 0;
  font-family: "Space Grotesk", "Avenir Next", sans-serif;
  font-size: 28px;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.api-sidebar-panel p {
  margin: 14px 0 0;
  color: var(--api-copy-soft);
  font-size: 14px;
  line-height: 1.78;
}

.api-sidebar-panel-minimal {
  padding-bottom: 20px;
}

.api-sidebar-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.api-sidebar-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid var(--api-line-soft);
  border-radius: var(--api-radius-sm);
  background: rgba(255, 255, 255, 0.03);
  color: var(--api-copy-faint);
  font: 600 10px/1 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.api-sidebar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.api-sidebar-actions .api-button {
  min-height: 38px;
  padding: 0 14px;
  font-size: 10px;
}

.api-sidebar-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.api-sidebar-metrics div {
  padding: 14px;
  border: 1px solid var(--api-line-soft);
  border-radius: var(--api-radius-md);
  background: rgba(255, 255, 255, 0.03);
}

.api-sidebar-metrics strong {
  display: block;
  font-family: "Space Grotesk", "Avenir Next", sans-serif;
  font-size: 20px;
  letter-spacing: -0.03em;
}

.api-sidebar-metrics span {
  display: block;
  margin-top: 6px;
  color: var(--api-copy-soft);
  font-size: 12px;
}

.api-toc {
  display: grid;
  gap: 6px;
  padding: 18px;
  border: 1px solid var(--api-line);
  border-radius: var(--api-radius-xl);
  background: rgba(14, 14, 15, 0.72);
  box-shadow: var(--api-shadow);
}

.api-toc-group {
  display: grid;
  gap: 4px;
}

.api-toc-link {
  position: relative;
  display: block;
  padding: 11px 14px 11px 18px;
  border-radius: var(--api-radius-sm);
  color: rgba(233, 229, 221, 0.72);
  font-size: 14px;
  line-height: 1.45;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.api-toc-link::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 50%;
  width: 2px;
  height: 0;
  border-radius: var(--api-radius-sm);
  background: linear-gradient(180deg, var(--api-gold-bright), rgba(239, 215, 157, 0.18));
  transform: translateY(-50%);
  transition: height 180ms ease, opacity 180ms ease;
  opacity: 0;
}

.api-toc-link-depth-1 {
  padding-left: 18px;
  color: rgba(255, 248, 234, 0.94);
  font: 700 11px/1.5 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.api-toc-link-depth-2 {
  margin-left: 8px;
  padding: 8px 14px 8px 18px;
  color: rgba(233, 229, 221, 0.68);
  font-size: 13px;
  line-height: 1.45;
  letter-spacing: normal;
  text-transform: none;
}

.api-toc-link:hover,
.api-toc-link:focus-visible {
  color: rgba(255, 255, 255, 0.94);
  background: rgba(255, 255, 255, 0.05);
}

.api-toc-link.is-parent-current {
  color: rgba(255, 248, 234, 0.96);
  background: rgba(211, 175, 99, 0.05);
}

.api-toc-link.is-current {
  color: rgba(255, 248, 234, 0.98);
  background: rgba(211, 175, 99, 0.08);
}

.api-toc-link.is-current::before {
  height: 22px;
  opacity: 1;
}

.api-sidebar-resource {
  display: block;
  padding: 14px 0;
  border-bottom: 1px solid var(--api-line-soft);
}

.api-sidebar-resource:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.api-sidebar-resource:first-of-type {
  padding-top: 8px;
}

.api-sidebar-resource span {
  display: block;
  color: rgba(255, 247, 231, 0.94);
  font-size: 14px;
  font-weight: 700;
}

.api-sidebar-resource small {
  display: block;
  margin-top: 6px;
  color: var(--api-copy-faint);
  font-size: 12px;
  line-height: 1.6;
  word-break: break-all;
}

.api-docs-main {
  min-width: 0;
}

.api-docs-article {
  display: grid;
  gap: 24px;
}

.api-doc-section {
  position: relative;
  padding: 28px;
  border-radius: var(--api-radius-xl);
  scroll-margin-top: 104px;
  min-width: 0;
  overflow-wrap: anywhere;
}

.api-doc-section-compact {
  padding-top: 24px;
}

.api-doc-hero {
  padding-top: 32px;
}

.api-section-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.api-section-meta,
.api-inline-link,
.api-card-copy,
.api-doc-section p,
.api-detail-card p,
.api-faq-item p {
  color: var(--api-copy-soft);
  font-size: 15px;
  line-height: 1.82;
}

.api-inline-link {
  color: var(--api-gold-bright);
  font-size: 13px;
}

.api-doc-section h2,
.api-detail-card h3,
.api-endpoint-card h3,
.api-link-group-card h3,
.api-faq-item summary {
  margin: 0;
  font-family: "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: -0.04em;
}

.api-doc-section h2 {
  margin-top: 14px;
  max-width: 18ch;
  font-size: clamp(34px, 4.8vw, 56px);
  line-height: 1.02;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.api-doc-lead {
  max-width: 860px;
  margin: 18px 0 0;
  color: rgba(241, 236, 226, 0.88);
  font-size: 17px;
  line-height: 1.92;
}

.api-chip-row,
.api-field-list,
.api-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.api-chip-row {
  margin-top: 24px;
}

.api-chip-row-tight {
  margin-top: 14px;
}

.api-chip,
.api-field-chip,
.api-tag-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--api-radius-sm);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(244, 239, 232, 0.84);
  font: 600 10px/1 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.api-field-chip,
.api-tag-pill {
  min-height: 32px;
  padding: 0 12px;
  font-size: 10px;
}

.api-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.api-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: var(--api-radius-sm);
  font: 700 11px/1 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.api-button:hover,
.api-button:focus-visible,
.api-link-item:hover,
.api-link-item:focus-visible {
  transform: translateY(-1px);
}

.api-button-primary {
  color: #261a00;
  background: linear-gradient(135deg, #f0d693, var(--api-gold));
}

.api-button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.11);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(245, 238, 225, 0.92);
}

.api-metric-grid,
.api-grid-2,
.api-endpoint-stack,
.api-step-grid,
.api-link-group-grid,
.api-grid-3,
.api-example-grid {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.api-metric-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.api-grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.api-endpoint-stack {
  grid-template-columns: minmax(0, 1fr);
}

.api-step-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.api-link-group-grid {
  grid-template-columns: minmax(0, 1fr);
}

.api-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.api-example-grid {
  grid-template-columns: minmax(0, 1fr);
}

.api-example-grid-single {
  margin-top: 16px;
}

.api-metric-card,
.api-detail-card,
.api-step-card,
.api-endpoint-card,
.api-code-card {
  border: 1px solid var(--api-line-soft);
  border-radius: var(--api-radius-lg);
  background: rgba(255, 255, 255, 0.03);
  padding: 22px;
}

.api-metric-card strong {
  display: block;
  margin-top: 12px;
  font-family: "Space Grotesk", "Avenir Next", sans-serif;
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.06;
  letter-spacing: -0.04em;
}

.api-metric-card p,
.api-detail-card p {
  margin: 12px 0 0;
}

.api-detail-card h3,
.api-endpoint-card h3,
.api-link-group-card h3 {
  margin-top: 10px;
  font-size: 24px;
  line-height: 1.08;
}

.api-detail-card-warning {
  background:
    linear-gradient(180deg, rgba(211, 175, 99, 0.08), rgba(255, 255, 255, 0.02)),
    rgba(29, 24, 17, 0.8);
}

.api-endpoint-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.api-http-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  min-height: 24px;
  padding: 0 9px;
  border-radius: var(--api-radius-sm);
  font: 700 10px/1 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.api-http-badge-get {
  color: #dff5e6;
  background: rgba(61, 133, 88, 0.28);
}

.api-http-badge-post {
  color: #fbe9c4;
  background: rgba(150, 109, 44, 0.32);
}

.api-endpoint-head code {
  color: rgba(249, 240, 214, 0.95);
  font-size: 13px;
  line-height: 1.7;
  word-break: break-all;
}

.api-endpoint-summary {
  margin: 14px 0 0;
}

.api-contract-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.api-contract-item {
  padding: 14px 16px;
  border: 1px solid var(--api-line-soft);
  border-radius: var(--api-radius-md);
  background: rgba(255, 255, 255, 0.03);
}

.api-contract-label {
  color: var(--api-copy-faint);
  font: 700 10px/1.4 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.api-contract-value {
  margin-top: 8px;
  color: rgba(248, 242, 232, 0.94);
  font-size: 13px;
  line-height: 1.68;
  word-break: break-word;
}

.api-code-card {
  padding: 18px;
}

.api-code-card-topline {
  color: var(--api-copy-faint);
  font: 700 10px/1.4 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.api-code-card pre {
  margin: 14px 0 0;
  position: relative;
  padding: 16px;
  overflow: auto;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--api-radius-md);
  background: linear-gradient(180deg, rgba(7, 7, 8, 0.94), rgba(15, 15, 16, 0.94));
}

.api-code-card code {
  color: rgba(249, 240, 214, 0.92);
  font-size: 12px;
  line-height: 1.7;
  word-break: break-word;
}

.api-note-block {
  margin-top: 24px;
  padding: 18px 20px;
  border-left: 2px solid rgba(239, 215, 157, 0.78);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.04);
}

.api-note-block strong {
  display: block;
  color: rgba(255, 248, 234, 0.96);
  font-size: 15px;
}

.api-note-block p {
  margin: 8px 0 0;
}

.api-diagram-nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.api-diagram-nav-card {
  display: block;
  padding: 18px;
  border: 1px solid var(--api-line-soft);
  border-radius: var(--api-radius-lg);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.api-diagram-nav-card:hover,
.api-diagram-nav-card:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(239, 215, 157, 0.24);
  background: rgba(255, 255, 255, 0.04);
}

.api-diagram-nav-card.is-current {
  border-color: rgba(239, 215, 157, 0.36);
  background:
    linear-gradient(180deg, rgba(211, 175, 99, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(255, 255, 255, 0.04);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.24);
}

.api-diagram-nav-type {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--api-radius-sm);
  background: rgba(255, 255, 255, 0.04);
  color: var(--api-gold-bright);
  font: 700 10px/1 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.api-diagram-nav-card strong {
  display: block;
  margin-top: 12px;
  color: rgba(255, 248, 234, 0.96);
  font-size: 17px;
  line-height: 1.35;
}

.api-diagram-nav-card p {
  margin: 8px 0 0;
  color: var(--api-copy-soft);
  font-size: 13px;
  line-height: 1.72;
}

.api-agent-outline {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.api-visual-board {
  position: relative;
  margin-top: 24px;
  padding: 22px;
  border: 1px solid var(--api-line-soft);
  border-radius: var(--api-radius-xl);
  background:
    linear-gradient(180deg, rgba(211, 175, 99, 0.06), rgba(255, 255, 255, 0.02)),
    rgba(255, 255, 255, 0.025);
  overflow: hidden;
}

.api-visual-board.is-current {
  border-color: rgba(239, 215, 157, 0.28);
  box-shadow:
    0 24px 70px rgba(0, 0, 0, 0.32),
    inset 0 0 0 1px rgba(239, 215, 157, 0.08);
}

.api-visual-board::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at top right, rgba(211, 175, 99, 0.14), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 36%);
  opacity: 0.9;
}

.api-visual-board > * {
  position: relative;
  z-index: 1;
}

.api-visual-topline p {
  margin: 10px 0 0;
  color: var(--api-copy-soft);
  font-size: 14px;
  line-height: 1.78;
}

.api-visual-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.api-diagram-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--api-radius-sm);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(249, 240, 214, 0.88);
  font: 700 10px/1 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.api-diagram-copy:hover,
.api-diagram-copy:focus-visible {
  background: rgba(211, 175, 99, 0.12);
  border-color: rgba(211, 175, 99, 0.28);
  color: rgba(255, 248, 234, 0.98);
  transform: translateY(-1px);
}

.api-diagram-copy.is-copied {
  background: rgba(61, 133, 88, 0.24);
  border-color: rgba(61, 133, 88, 0.3);
  color: #dff5e6;
}

.api-architecture-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) 72px minmax(0, 1.14fr) 72px minmax(0, 0.95fr);
  gap: 14px;
  align-items: stretch;
  margin-top: 18px;
}

.api-visual-column {
  display: grid;
  gap: 12px;
}

.api-visual-heading {
  color: rgba(248, 242, 232, 0.88);
  font: 700 11px/1.4 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.api-visual-node,
.api-signal-card,
.api-flow-step {
  position: relative;
  border: 1px solid var(--api-line-soft);
  border-radius: var(--api-radius-md);
  background: rgba(255, 255, 255, 0.03);
}

.api-visual-node {
  padding: 16px;
}

.api-visual-node-core {
  background:
    linear-gradient(180deg, rgba(211, 175, 99, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(255, 255, 255, 0.035);
}

.api-visual-board.is-current .api-visual-node,
.api-visual-board.is-current .api-flow-step,
.api-visual-board.is-current .api-signal-card,
.api-visual-board.is-current .api-branch-root,
.api-visual-board.is-current .api-branch-card,
.api-visual-board.is-current .api-branch-tail {
  border-color: rgba(239, 215, 157, 0.16);
}

.api-visual-node strong,
.api-flow-step strong {
  display: block;
  color: rgba(255, 248, 234, 0.96);
  font-size: 15px;
  line-height: 1.4;
}

.api-visual-node p,
.api-signal-card p,
.api-flow-step p {
  margin: 8px 0 0;
  color: var(--api-copy-soft);
  font-size: 13px;
  line-height: 1.72;
}

.api-visual-connector {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.api-visual-connector::before {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  top: 50%;
  height: 1px;
  background: linear-gradient(90deg, rgba(211, 175, 99, 0.14), rgba(239, 215, 157, 0.78));
}

.api-visual-connector::after {
  content: "";
  position: absolute;
  right: 10px;
  top: calc(50% - 4px);
  width: 8px;
  height: 8px;
  border-top: 1px solid rgba(239, 215, 157, 0.88);
  border-right: 1px solid rgba(239, 215, 157, 0.88);
  transform: rotate(45deg);
}

.api-visual-connector span {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--api-radius-sm);
  background: rgba(10, 10, 11, 0.84);
  color: var(--api-copy-faint);
  font: 700 10px/1 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.api-branch-flow {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.api-branch-root,
.api-branch-card,
.api-branch-tail {
  position: relative;
  padding: 18px;
  border: 1px solid var(--api-line-soft);
  border-radius: var(--api-radius-md);
  background: rgba(255, 255, 255, 0.03);
}

.api-branch-root,
.api-branch-tail {
  background:
    linear-gradient(180deg, rgba(211, 175, 99, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(255, 255, 255, 0.03);
}

.api-branch-root strong,
.api-branch-card strong,
.api-branch-tail strong {
  display: block;
  color: rgba(255, 248, 234, 0.96);
  font-size: 15px;
  line-height: 1.4;
}

.api-branch-root p,
.api-branch-card p,
.api-branch-tail p {
  margin: 8px 0 0;
  color: var(--api-copy-soft);
  font-size: 13px;
  line-height: 1.72;
}

.api-branch-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.api-flow-track {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.api-flow-step {
  padding: 18px;
}

.api-flow-step::after {
  content: "";
  position: absolute;
  top: 28px;
  right: -12px;
  width: 12px;
  height: 1px;
  background: linear-gradient(90deg, rgba(211, 175, 99, 0.18), rgba(239, 215, 157, 0.84));
}

.api-flow-step::before {
  content: "";
  position: absolute;
  top: 24px;
  right: -12px;
  width: 8px;
  height: 8px;
  border-top: 1px solid rgba(239, 215, 157, 0.88);
  border-right: 1px solid rgba(239, 215, 157, 0.88);
  transform: rotate(45deg);
}

.api-flow-track .api-flow-step:last-child::before,
.api-flow-track .api-flow-step:last-child::after {
  display: none;
}

.api-flow-step-top {
  display: grid;
  gap: 10px;
  align-items: start;
}

.api-flow-index,
.api-signal-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  min-height: 26px;
  padding: 0 10px;
  border-radius: var(--api-radius-sm);
  background: rgba(211, 175, 99, 0.12);
  color: var(--api-gold-bright);
  font: 700 10px/1 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.api-flow-step-compact {
  min-height: 100%;
}

.api-signal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.api-signal-card {
  padding: 18px;
  min-height: 100%;
}

.api-table-shell {
  margin-top: 22px;
  overflow-x: auto;
  border: 1px solid var(--api-line-soft);
  border-radius: var(--api-radius-lg);
  background: rgba(255, 255, 255, 0.02);
}

.api-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
}

.api-table th,
.api-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--api-line-soft);
  text-align: left;
  vertical-align: top;
}

.api-table th {
  color: rgba(248, 242, 232, 0.88);
  font: 700 11px/1.4 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.api-table td {
  color: var(--api-copy-soft);
  font-size: 14px;
  line-height: 1.72;
}

.api-table tr:last-child td {
  border-bottom: 0;
}

.api-step-topline {
  display: flex;
  align-items: center;
  gap: 12px;
}

.api-step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--api-radius-sm);
  background: rgba(211, 175, 99, 0.12);
  color: var(--api-gold-bright);
  font: 700 11px/1 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.14em;
}

.api-step-title {
  color: rgba(255, 248, 234, 0.96);
  font-family: "Space Grotesk", "Avenir Next", sans-serif;
  font-size: 18px;
  line-height: 1.2;
}

.api-step-card p {
  margin: 14px 0 0;
}

.api-step-card pre {
  margin: 16px 0 0;
  position: relative;
  padding: 16px;
  overflow: auto;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--api-radius-md);
  background: linear-gradient(180deg, rgba(7, 7, 8, 0.94), rgba(15, 15, 16, 0.94));
}

.api-code-copy {
  position: absolute;
  top: 10px;
  right: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--api-radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: rgba(249, 240, 214, 0.86);
  font: 700 10px/1 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.api-code-copy:hover,
.api-code-copy:focus-visible {
  background: rgba(211, 175, 99, 0.12);
  border-color: rgba(211, 175, 99, 0.28);
  color: rgba(255, 248, 234, 0.98);
  transform: translateY(-1px);
}

.api-code-copy.is-copied {
  background: rgba(61, 133, 88, 0.24);
  border-color: rgba(61, 133, 88, 0.3);
  color: #dff5e6;
}

.api-step-card code,
.api-timeline-topline code,
.api-link-item code,
.api-table code {
  color: rgba(249, 240, 214, 0.9);
  font-size: 12px;
  line-height: 1.7;
  word-break: break-all;
}

.api-list {
  margin: 14px 0 0;
  padding-left: 18px;
  color: var(--api-copy-soft);
}

.api-list li {
  margin-top: 10px;
  line-height: 1.75;
}

.api-list-tight {
  margin-top: 12px;
}

.api-list-tight li {
  margin-top: 8px;
}

.api-timeline {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.api-timeline-item {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px;
  border: 1px solid var(--api-line-soft);
  border-radius: var(--api-radius-lg);
  background: rgba(255, 255, 255, 0.03);
}

.api-timeline-marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--api-radius-sm);
  background: rgba(211, 175, 99, 0.12);
  color: var(--api-gold-bright);
  font: 700 11px/1 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.12em;
}

.api-timeline-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.api-timeline-topline h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.16;
}

.api-timeline-body p {
  margin: 10px 0 0;
  color: var(--api-copy-soft);
  font-size: 15px;
  line-height: 1.8;
}

.api-link-group-card {
  padding: 24px;
  border-radius: var(--api-radius-xl);
}

.api-link-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.api-link-item {
  display: block;
  padding: 16px;
  border: 1px solid var(--api-line-soft);
  border-radius: var(--api-radius-md);
  background: rgba(255, 255, 255, 0.03);
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.api-link-item-title {
  display: block;
  color: rgba(255, 247, 232, 0.96);
  font-size: 15px;
  font-weight: 700;
}

.api-link-item code,
.api-link-item small {
  display: block;
}

.api-link-item code {
  margin-top: 8px;
}

.api-link-item small {
  margin-top: 8px;
  color: var(--api-copy-faint);
  font-size: 12px;
  line-height: 1.6;
}

.api-faq-list {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.api-faq-item {
  border: 1px solid var(--api-line-soft);
  border-radius: var(--api-radius-md);
  background: rgba(255, 255, 255, 0.03);
  padding: 0 18px;
}

.api-faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 22px 18px 0;
  position: relative;
  font-size: 20px;
  line-height: 1.22;
}

.api-faq-item summary::-webkit-details-marker {
  display: none;
}

.api-faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 16px;
  color: var(--api-gold-bright);
  font-size: 22px;
  line-height: 1;
}

.api-faq-item[open] summary::after {
  content: "−";
}

.api-faq-item p {
  margin: 0 0 18px;
}

.api-footer {
  width: min(1440px, calc(100% - 48px));
  margin: 0 auto;
  padding: 0 0 34px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--api-copy-faint);
  font: 600 11px/1.4 "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.api-footer a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(196, 185, 164, 0.28);
}

.api-footer a:hover,
.api-footer a:focus-visible {
  color: var(--api-copy-strong);
  border-bottom-color: rgba(196, 185, 164, 0.58);
}

@media (max-width: 1180px) {
  .api-topbar-shell,
  .api-docs-shell,
  .api-footer {
    width: calc(100% - 40px);
  }

  .api-docs-shell {
    grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
    gap: 24px;
  }

  .api-architecture-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .api-visual-connector {
    display: none;
  }

  .api-flow-step::before,
  .api-flow-step::after {
    display: none;
  }
}

@media (max-width: 960px) {
  .api-sidebar-inner {
    top: 88px;
  }

  .api-docs-shell {
    grid-template-columns: minmax(208px, 232px) minmax(0, 1fr);
    gap: 20px;
  }

  .api-sidebar-panel {
    padding: 20px;
  }

  .api-doc-section {
    padding: 24px;
    border-radius: var(--api-radius-lg);
  }

  .api-signal-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .api-branch-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 760px) {
  .api-topbar-shell,
  .api-docs-shell,
  .api-footer {
    width: calc(100% - 24px);
  }

  .api-docs-shell {
    grid-template-columns: minmax(188px, 212px) minmax(0, 1fr);
    padding-top: 24px;
    gap: 16px;
  }

  .api-sidebar-metrics {
    grid-template-columns: minmax(0, 1fr);
  }

  .api-sidebar-panel {
    padding: 18px;
  }

  .api-sidebar-actions {
    gap: 8px;
  }

  .api-doc-section {
    padding: 20px;
    border-radius: var(--api-radius-md);
  }

  .api-metric-grid,
  .api-grid-2,
  .api-endpoint-stack,
  .api-contract-grid,
  .api-step-grid,
  .api-link-group-grid,
  .api-grid-3,
  .api-example-grid,
  .api-flow-track,
  .api-signal-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .api-doc-section h2 {
    max-width: none;
    font-size: clamp(30px, 9vw, 44px);
    letter-spacing: 0;
    line-break: anywhere;
  }

  .api-timeline-item {
    grid-template-columns: 1fr;
  }

  .api-footer {
    flex-direction: column;
    align-items: flex-start;
    text-transform: none;
    letter-spacing: 0.08em;
  }
}

@media (max-width: 700px) {
  .api-topbar-shell,
  .api-docs-shell,
  .api-footer {
    width: calc(100% - 20px);
  }

  .api-docs-shell {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
    padding-top: 0;
    padding-bottom: 56px;
  }

  .api-sidebar {
    position: sticky;
    top: 79px;
    z-index: 24;
  }

  .api-sidebar::before {
    content: "";
    position: absolute;
    inset: -10px -10px auto;
    height: calc(100% + 20px);
    z-index: -1;
    background: linear-gradient(180deg, rgba(11, 11, 12, 0.96), rgba(11, 11, 12, 0.76));
    pointer-events: none;
  }

  .api-sidebar-inner {
    position: static;
    top: auto;
    max-height: none;
    overflow: visible;
    display: block;
    padding-right: 0;
  }

  .api-mobile-toc-toggle {
    display: flex;
    width: 100%;
    min-height: 48px;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 0 14px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--api-radius-md);
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.025)),
      rgba(14, 14, 15, 0.92);
    color: rgba(255, 248, 234, 0.96);
    box-shadow: 0 16px 42px rgba(0, 0, 0, 0.28);
    backdrop-filter: blur(18px);
    cursor: pointer;
  }

  .api-mobile-toc-toggle span {
    color: var(--api-copy-faint);
    font: 700 10px/1 "Space Grotesk", "Avenir Next", sans-serif;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    white-space: nowrap;
  }

  .api-mobile-toc-toggle strong {
    min-width: 0;
    color: rgba(255, 248, 234, 0.96);
    font-size: 14px;
    line-height: 1.35;
    text-align: right;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .api-mobile-toc-toggle::after {
    content: "";
    flex: 0 0 auto;
    width: 8px;
    height: 8px;
    border-right: 1px solid rgba(239, 215, 157, 0.86);
    border-bottom: 1px solid rgba(239, 215, 157, 0.86);
    transform: translateY(-2px) rotate(45deg);
    transition: transform 180ms ease;
  }

  .api-sidebar.is-toc-open .api-mobile-toc-toggle::after {
    transform: translateY(2px) rotate(225deg);
  }

  .api-toc {
    display: block;
    margin-top: 8px;
    max-height: 0;
    padding: 0 14px;
    overflow: hidden;
    border-color: rgba(255, 255, 255, 0);
    background: rgba(14, 14, 15, 0.96);
    box-shadow: none;
    opacity: 0;
    transform: translateY(-4px);
    transition: max-height 220ms ease, padding 220ms ease, border-color 220ms ease, opacity 180ms ease, transform 180ms ease;
  }

  .api-sidebar.is-toc-open .api-toc {
    max-height: min(62vh, 520px);
    padding: 12px;
    overflow: auto;
    border-color: var(--api-line);
    opacity: 1;
    transform: translateY(0);
    box-shadow: 0 18px 46px rgba(0, 0, 0, 0.34);
    scrollbar-width: thin;
  }

  .api-toc-group + .api-toc-group {
    margin-top: 4px;
  }

  .api-toc-link {
    padding-top: 10px;
    padding-bottom: 10px;
    font-size: 14px;
  }

  .api-toc-link-depth-2 {
    margin-left: 0;
    padding-left: 24px;
  }

  .api-doc-section {
    scroll-margin-top: 164px;
  }
}

@media (max-width: 640px) {
  .api-topbar-shell {
    min-height: 0;
    padding: 11px 0 10px;
    display: grid;
    gap: 10px;
    align-items: center;
  }

  .api-brand {
    letter-spacing: 0.18em;
  }

  .api-nav {
    width: 100%;
    gap: 6px;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .api-nav::-webkit-scrollbar {
    display: none;
  }

  .api-nav-link {
    flex: 0 0 auto;
    min-height: 34px;
    padding: 0 12px;
    font-size: 10px;
    letter-spacing: 0.1em;
    white-space: nowrap;
  }

  .api-sidebar-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .api-step-card pre,
  .api-code-card pre,
  .api-table-shell {
    border-radius: var(--api-radius-md);
  }
}

@media (max-width: 520px) {
  body::before {
    opacity: 0.12;
  }

  .api-topbar-shell,
  .api-docs-shell,
  .api-footer {
    width: calc(100% - 16px);
  }

  .api-sidebar {
    top: 79px;
  }

  .api-docs-article {
    gap: 14px;
  }

  .api-doc-section {
    padding: 16px;
  }

  .api-doc-hero {
    padding-top: 20px;
  }

  .api-doc-section h2 {
    margin-top: 12px;
    font-size: clamp(24px, 7.8vw, 32px);
    line-height: 1.08;
  }

  .api-doc-lead,
  .api-section-meta,
  .api-inline-link,
  .api-card-copy,
  .api-doc-section p,
  .api-detail-card p,
  .api-faq-item p {
    font-size: 14px;
    line-height: 1.76;
  }

  .api-action-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    margin-top: 20px;
  }

  .api-button {
    width: 100%;
    min-height: 44px;
    padding: 0 14px;
    font-size: 10px;
    letter-spacing: 0.1em;
    text-align: center;
  }

  .api-metric-card,
  .api-detail-card,
  .api-step-card,
  .api-endpoint-card,
  .api-code-card,
  .api-link-group-card,
  .api-visual-board,
  .api-diagram-nav-card,
  .api-flow-step,
  .api-signal-card,
  .api-branch-root,
  .api-branch-card,
  .api-branch-tail,
  .api-timeline-item,
  .api-link-item {
    padding: 14px;
  }

  .api-detail-card h3,
  .api-endpoint-card h3,
  .api-link-group-card h3 {
    font-size: 20px;
    line-height: 1.18;
  }

  .api-contract-grid,
  .api-diagram-nav-grid,
  .api-flow-track,
  .api-signal-grid,
  .api-branch-flow,
  .api-timeline,
  .api-link-list,
  .api-faq-list {
    gap: 10px;
    margin-top: 16px;
  }

  .api-contract-item {
    padding: 12px;
  }

  .api-code-card pre,
  .api-step-card pre {
    margin-top: 12px;
    padding: 48px 12px 12px;
  }

  .api-code-card code,
  .api-step-card code,
  .api-timeline-topline code,
  .api-link-item code,
  .api-table code {
    font-size: 11px;
    line-height: 1.72;
  }

  .api-code-copy {
    top: 10px;
    left: 10px;
    right: auto;
  }

  .api-table-shell {
    margin-top: 16px;
  }

  .api-table {
    min-width: 540px;
  }

  .api-table th,
  .api-table td {
    padding: 12px 14px;
  }

  .api-chip,
  .api-field-chip,
  .api-tag-pill {
    min-height: 30px;
    padding: 0 10px;
    font-size: 9px;
    letter-spacing: 0.1em;
  }

  .api-note-block {
    margin-top: 18px;
    padding: 14px 14px 14px 16px;
  }

  .api-visual-topline p,
  .api-visual-node p,
  .api-signal-card p,
  .api-flow-step p,
  .api-branch-root p,
  .api-branch-card p,
  .api-branch-tail p,
  .api-diagram-nav-card p {
    font-size: 12px;
    line-height: 1.68;
  }

  .api-visual-node strong,
  .api-flow-step strong,
  .api-branch-root strong,
  .api-branch-card strong,
  .api-branch-tail strong {
    font-size: 14px;
  }

  .api-faq-item {
    padding: 0 14px;
  }

  .api-faq-item summary {
    padding: 15px 24px 15px 0;
    font-size: 17px;
  }

  .api-footer {
    padding-bottom: 24px;
    font-size: 10px;
  }
}

@media (max-width: 380px) {
  .api-sidebar-metrics {
    grid-template-columns: minmax(0, 1fr);
  }

  .api-mobile-toc-toggle {
    min-height: 46px;
    padding: 0 12px;
  }

  .api-mobile-toc-toggle strong {
    font-size: 13px;
  }

  .api-doc-section {
    padding: 14px;
  }

  .api-doc-section h2 {
    font-size: 25px;
  }
}