:root {
  color-scheme: light;
  --ink: #182230;
  --muted: #647184;
  --subtle: #8b97a8;
  --line: #dfe5ec;
  --line-strong: #cbd4df;
  --paper: #ffffff;
  --wash: #f4f7fb;
  --wash-deep: #eaf0f6;
  --accent: #0b6e69;
  --accent-strong: #075752;
  --accent-soft: #dff1ef;
  --warning: #9a5a13;
  --warning-soft: #fff2df;
  --code: #15202c;
  --shadow: 0 18px 50px rgba(23, 39, 58, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  font-weight: 400;
  color: var(--ink);
  background: var(--wash);
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--wash); }
a { color: var(--accent-strong); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #08443f; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
code, pre { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
code { color: #0c5b57; font-size: 0.92em; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: 0.65rem 0.8rem; background: var(--ink); color: #fff; text-decoration: none; }
.skip-link:focus { top: 1rem; }

.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line); background: rgba(244, 247, 251, 0.92); backdrop-filter: blur(14px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; max-width: 1440px; min-height: 72px; margin: 0 auto; padding: 0 32px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); text-decoration: none; }
.brand-mark { display: grid; width: 31px; height: 31px; place-items: center; background: var(--accent); color: #fff; font-size: 0.9rem; font-weight: 800; letter-spacing: 0.05em; }
.brand strong, .brand small { display: block; line-height: 1.15; }
.brand strong { font-size: 0.95rem; letter-spacing: 0.02em; }
.brand small { margin-top: 4px; color: var(--subtle); font-size: 0.65rem; letter-spacing: 0.14em; text-transform: uppercase; }
.header-actions { display: flex; align-items: center; gap: 22px; }
.header-link { color: var(--muted); font-size: 0.84rem; text-decoration: none; }
.header-link:hover { color: var(--accent-strong); }
.menu-toggle { display: none; align-items: center; gap: 7px; border: 1px solid var(--line-strong); padding: 0.45rem 0.65rem; background: var(--paper); color: var(--ink); cursor: pointer; }
.menu-icon { font-size: 1rem; line-height: 1; }

.layout-shell { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 0; max-width: 1440px; min-height: calc(100vh - 73px); margin: 0 auto; }
.docs-sidebar { position: sticky; top: 73px; align-self: start; height: calc(100vh - 73px); padding: 42px 24px 28px 32px; border-right: 1px solid var(--line); overflow-y: auto; }
.sidebar-intro { padding-bottom: 25px; border-bottom: 1px solid var(--line); }
.sidebar-intro p { margin: 10px 0 0; color: var(--muted); font-size: 0.8rem; line-height: 1.7; }
.eyebrow { color: var(--accent); font-size: 0.68rem; font-weight: 800; letter-spacing: 0.18em; }
.docs-sidebar nav { display: grid; gap: 2px; padding: 24px 0; }
.docs-sidebar nav a { display: flex; align-items: center; justify-content: space-between; padding: 9px 10px; border-left: 2px solid transparent; color: var(--muted); font-size: 0.82rem; text-decoration: none; }
.docs-sidebar nav a span { color: var(--subtle); font-family: monospace; font-size: 0.68rem; }
.docs-sidebar nav a:hover, .docs-sidebar nav a[aria-current="true"] { border-left-color: var(--accent); background: var(--paper); color: var(--accent-strong); }
.docs-sidebar nav a[aria-current="true"] span { color: var(--accent); }
.sidebar-note { display: flex; gap: 10px; align-items: flex-start; margin-top: 22px; padding: 12px 10px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.76rem; }
.sidebar-note strong, .sidebar-note a { display: block; }
.sidebar-note a { margin-top: 3px; font-size: 0.72rem; }
.status-dot { width: 8px; height: 8px; margin-top: 6px; border-radius: 50%; background: #269b75; box-shadow: 0 0 0 4px #d9f2e8; }

.docs-content { min-width: 0; padding: 0 8.5vw 80px; }
.hero-block { max-width: 800px; padding: 92px 0 80px; }
.hero-block h1 { max-width: 660px; margin: 15px 0 19px; font-size: clamp(2.3rem, 5vw, 4.6rem); line-height: 1.05; letter-spacing: -0.03em; font-weight: 730; }
.hero-copy { max-width: 690px; margin: 0; color: var(--muted); font-size: 1.1rem; line-height: 1.75; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--line); }
.hero-meta > div { display: grid; gap: 4px; }
.hero-meta span { color: var(--subtle); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; }
.hero-meta code, .hero-meta strong { font-size: 0.82rem; font-weight: 600; }

.doc-section { scroll-margin-top: 100px; max-width: 930px; padding: 72px 0; border-top: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 14px; align-items: start; margin-bottom: 28px; }
.section-number { padding-top: 5px; color: var(--accent); font-family: monospace; font-size: 0.76rem; font-weight: 700; }
.section-heading h2 { margin: 0; font-size: 1.9rem; line-height: 1.15; letter-spacing: -0.02em; }
.section-heading p { margin: 8px 0 0; color: var(--muted); }
.prose-grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(250px, 0.8fr); gap: 34px; }
.prose-grid p, .doc-section > p { max-width: 700px; margin: 0 0 15px; color: var(--muted); }
.plain-panel { padding: 20px; border: 1px solid var(--line); background: rgba(255,255,255,0.55); }
.panel-label { display: block; margin-bottom: 15px; color: var(--subtle); font-size: 0.67rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; }
.fact-list { display: grid; gap: 14px; margin: 0; }
.fact-list div { display: grid; gap: 3px; }
.fact-list dt { color: var(--subtle); font-size: 0.72rem; }
.fact-list dd { margin: 0; font-size: 0.76rem; overflow-wrap: anywhere; }

.steps-list { display: grid; gap: 0; margin: 0 0 28px; padding: 0; list-style: none; }
.steps-list li { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 15px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.steps-list li:first-child { padding-top: 0; }
.step-index { display: grid; width: 26px; height: 26px; place-items: center; border: 1px solid var(--accent); border-radius: 50%; color: var(--accent); font-family: monospace; font-size: 0.75rem; }
.steps-list h3, .endpoint-list h3 { margin: 0; font-size: 0.96rem; }
.steps-list p, .endpoint-list p { margin: 4px 0 0; color: var(--muted); font-size: 0.84rem; }
.code-card { margin-top: 18px; border: 1px solid #263545; background: var(--code); box-shadow: var(--shadow); }
.code-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 45px; padding: 0 14px 0 17px; border-bottom: 1px solid #314254; color: #b5c4d2; font-size: 0.72rem; }
.code-header button { border: 1px solid #526679; padding: 4px 9px; background: transparent; color: #d7e5ef; font-size: 0.7rem; cursor: pointer; }
.code-header button:hover, .code-header button:focus-visible { border-color: #b9d7d2; color: #fff; }
pre { margin: 0; padding: 20px 17px; overflow-x: auto; color: #dce8f2; font-size: 0.79rem; line-height: 1.75; tab-size: 2; }
pre code { color: inherit; font-size: inherit; }
.callout { display: flex; gap: 10px; align-items: baseline; margin-top: 22px; padding: 14px 16px; border-left: 3px solid var(--accent); background: var(--accent-soft); color: #285d59; font-size: 0.82rem; }
.callout strong { color: var(--accent-strong); white-space: nowrap; }
.callout-warning { border-left-color: var(--warning); background: var(--warning-soft); color: #73501f; }
.callout-warning strong { color: var(--warning); }
.split-panels, .sdk-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 22px; }
.compact-list { display: grid; gap: 9px; margin: 0; padding-left: 18px; color: var(--muted); font-size: 0.82rem; }
.plain-panel p { margin: 0; color: var(--muted); font-size: 0.82rem; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); background: rgba(255,255,255,0.58); }
table { width: 100%; border-collapse: collapse; min-width: 620px; }
th, td { padding: 13px 15px; border-bottom: 1px solid var(--line); text-align: left; font-size: 0.8rem; vertical-align: top; }
th { background: var(--wash-deep); color: var(--muted); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; }
tr:last-child td { border-bottom: 0; }
td { color: var(--muted); }
td:first-child { color: var(--ink); font-weight: 600; }
.endpoint-list { border-top: 1px solid var(--line); }
.endpoint-list article { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.method { align-self: start; padding-top: 4px; font-family: monospace; font-size: 0.67rem; font-weight: 800; }
.method-post { color: #7350a5; }
.method-get { color: #0e7a65; }
.muted-note { margin-top: 17px; color: var(--subtle); font-size: 0.78rem; }

.faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px 0; color: var(--ink); font-size: 0.9rem; font-weight: 650; cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--accent); font-family: monospace; font-size: 1rem; font-weight: 400; }
details[open] summary::after { content: "-"; }
details p { max-width: 780px; margin: -3px 0 18px; color: var(--muted); font-size: 0.83rem; }
.docs-footer { display: flex; align-items: flex-end; justify-content: space-between; gap: 25px; padding-top: 40px; color: var(--subtle); font-size: 0.76rem; }
.docs-footer strong, .docs-footer span { display: block; }
.docs-footer strong { color: var(--ink); font-size: 0.88rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-links a { color: var(--muted); text-decoration: none; }

:focus-visible { outline: 3px solid rgba(11, 110, 105, 0.38); outline-offset: 3px; }
@media (max-width: 980px) {
  .header-inner { padding: 0 20px; }
  .header-link { display: none; }
  .menu-toggle { display: inline-flex; }
  .layout-shell { display: block; }
  .docs-sidebar { position: fixed; top: 73px; left: 0; z-index: 15; width: min(300px, 86vw); height: calc(100vh - 73px); padding: 32px 24px; background: var(--paper); box-shadow: 16px 0 45px rgba(23,39,58,0.12); transform: translateX(-102%); transition: transform 180ms ease; }
  .docs-sidebar.is-open { transform: translateX(0); }
  .docs-content { padding-right: 6vw; padding-left: 6vw; }
}
@media (max-width: 680px) {
  .hero-block { padding-top: 64px; padding-bottom: 58px; }
  .hero-block h1 { font-size: 2.45rem; }
  .hero-copy { font-size: 0.98rem; }
  .hero-meta { display: grid; gap: 18px; }
  .doc-section { padding: 56px 0; }
  .section-heading h2 { font-size: 1.6rem; }
  .prose-grid, .split-panels, .sdk-grid { grid-template-columns: 1fr; }
  .code-card { margin-right: -1px; margin-left: -1px; }
  pre { font-size: 0.7rem; }
  .docs-footer { display: grid; align-items: start; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}