:root {
  --bg: #07120f;
  --bg-2: #0b1a16;
  --panel: #10241f;
  --panel-2: #15302a;
  --line: rgba(46, 230, 166, 0.14);
  --text: #e8f7f0;
  --muted: #8fb3a6;
  --teal: #2ee6a6;
  --teal-2: #17b37c;
  --amber: #f0c14b;
  --rose: #ff7a88;
  --blue: #8fd4ff;
  --get: #2ee6a6;
  --ws: #8fd4ff;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --radius: 18px;
  --sidebar: 280px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  font: 16px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(46, 230, 166, 0.12), transparent 55%),
    radial-gradient(900px 500px at -10% 20%, rgba(143, 212, 255, 0.08), transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, #050d0b 100%);
  min-height: 100vh;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(46, 230, 166, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 230, 166, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 30% 0%, #000 20%, transparent 70%);
}
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
.app {
  display: grid;
  grid-template-columns: var(--sidebar) 1fr;
  min-height: 100vh;
}
#sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 28px 22px;
  border-right: 1px solid var(--line);
  background: rgba(7, 18, 15, 0.88);
  backdrop-filter: blur(16px);
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: none;
}
#sidebar::-webkit-scrollbar {
  width: 0;
  height: 0;
}
.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 22px;
}
.mark {
  width: 56px;
  height: 44px;
  flex: none;
}
.brand h1 {
  margin: 0;
  font-size: 18px;
  letter-spacing: 0.02em;
}
.brand p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 12px;
}
.node-meta {
  display: grid;
  gap: 12px;
  margin: 0 0 22px;
}
.meta-label {
  margin: 0 0 6px;
  padding-left: 12px;
  color: var(--teal);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--muted);
  font-size: 12px;
}
.status.range {
  font-variant-numeric: tabular-nums;
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(240, 193, 75, 0.12);
}
.dot.live { background: var(--teal); box-shadow: 0 0 0 4px rgba(46, 230, 166, 0.16); }
.dot.syncing { background: var(--amber); }
.dot.degraded { background: var(--rose); box-shadow: 0 0 0 4px rgba(255, 122, 136, 0.16); }
nav a {
  display: block;
  color: var(--muted);
  padding: 7px 10px;
  border-radius: 10px;
  text-decoration: none;
  font-size: 14px;
}
nav a:hover, nav a.active {
  color: var(--text);
  background: rgba(46, 230, 166, 0.08);
  text-decoration: none;
}
nav .group {
  margin: 16px 0 6px;
  padding-left: 10px;
  color: var(--teal);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
main { padding: 48px 56px 96px; max-width: 1080px; }
.hero {
  position: relative;
  padding: 8px 0 36px;
}
.kicker {
  color: var(--teal);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
h2 {
  margin: 0 0 10px;
  font-size: 42px;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.lede { color: var(--muted); font-size: 18px; max-width: 720px; }
.notice {
  margin: 18px 0 0;
  max-width: 720px;
  color: var(--muted);
  font-size: 13px;
}
.donate {
  margin: 18px 0 0;
  color: var(--text);
  font-size: 14px;
}
.donate code {
  color: var(--teal);
}
.limits {
  margin: 22px 0 0;
  max-width: 720px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.limits h3 {
  margin: 0 0 6px;
  font-size: 16px;
}
.limits p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 14px;
}
.limits ul {
  margin: 0;
  padding-left: 18px;
  color: var(--text);
  font-size: 14px;
}
.limits li + li { margin-top: 4px; }
section { margin: 56px 0; scroll-margin-top: 24px; }
h3 {
  margin: 0 0 8px;
  font-size: 26px;
  letter-spacing: -0.02em;
}
h4 { margin: 0 0 8px; font-size: 16px; }
.sub { color: var(--muted); margin: 0 0 20px; }
.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.card, .endpoint {
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card { padding: 20px; }
.card h4 { color: var(--teal); }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
pre, .code {
  background: #06110e;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  overflow: auto;
  font: 13px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: #d7efe6;
}
.endpoint { margin: 16px 0; overflow: hidden; }
.endpoint header {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}
.verb {
  font: 700 11px/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.08em;
  padding: 5px 8px;
  border-radius: 999px;
  background: rgba(46, 230, 166, 0.12);
  color: var(--get);
}
.verb.ws { background: rgba(143, 212, 255, 0.12); color: var(--ws); }
.path {
  font: 600 14px/1.3 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: var(--text);
}
.try {
  margin-left: auto;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  text-decoration: none;
}
.try:hover { border-color: var(--teal); text-decoration: none; }
.endpoint .body { padding: 18px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-size: 12px; font-weight: 600; }
.pill {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--amber);
  font-size: 11px;
}
.pill.opt { color: var(--muted); }
.copy {
  margin-left: auto;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  border-radius: 999px;
  padding: 4px 10px;
  cursor: pointer;
  font-size: 12px;
}
.copy:hover { border-color: var(--teal); color: var(--teal); }
.code-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.code-head h4 { margin: 0; }
.cookbook { margin: 16px 0; }
.cookbook pre {
  margin: 0;
}
.sample {
  margin: 14px 0 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #06110e;
}
.sample summary {
  display: flex;
  align-items: center;
  gap: 12px;
  list-style: none;
  cursor: pointer;
  padding: 10px 14px;
  color: var(--muted);
  font-size: 13px;
}
.sample summary::-webkit-details-marker { display: none; }
.sample summary::before {
  content: "▸";
  color: var(--teal);
}
.sample[open] summary::before { content: "▾"; }
.sample[open] summary { border-bottom: 1px solid var(--line); }
.sample pre {
  border: 0;
  margin: 0;
  background: transparent;
}
footer {
  margin-top: 64px;
  color: var(--muted);
  font-size: 13px;
}
footer .notice {
  margin: 0 0 12px;
}
.menu {
  display: none;
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 5;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 12px;
}
@media (max-width: 920px) {
  .app { grid-template-columns: 1fr; }
  #sidebar {
    display: none;
    position: fixed;
    inset: 0 auto 0 0;
    width: min(84vw, 320px);
    z-index: 4;
  }
  #sidebar.open { display: block; }
  .menu { display: block; }
  main { padding: 72px 18px 64px; }
  .grid { grid-template-columns: 1fr; }
  h2 { font-size: 32px; }
}