/* sondahub.com — light, airy, no lines. Depth comes from tone and shadow, never from borders. */

:root {
  --ink: #1c2430;
  --ink-2: #3b4655;
  --muted: #6b7686;
  --faint: #9aa5b5;
  --bg: #ffffff;
  --bg-2: #f6f8fb;
  --bg-3: #eef2f7;
  --ember: #f1772c;
  --ember-hi: #ff8a3d;
  --ember-soft: #fff1e8;
  --good: #2f9e6a;
  --shadow: 0 10px 30px rgba(20, 30, 50, 0.08);
  --shadow-lg: 0 22px 60px rgba(20, 30, 50, 0.12);
  --radius: 14px;
  --radius-sm: 8px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--ember); text-decoration: none; }
a:hover { color: var(--ember-hi); }
h1, h2, h3, h4 { font-weight: 600; letter-spacing: -0.01em; line-height: 1.2; margin: 0; }
h1 { font-size: 44px; letter-spacing: -0.02em; }
h2 { font-size: 30px; }
h3 { font-size: 20px; }
h4 { font-size: 16px; }
p { margin: 0 0 16px; }
p.lead { font-size: 19px; color: var(--ink-2); line-height: 1.55; }
.muted { color: var(--muted); }
.faint { color: var(--faint); }
.small { font-size: 14px; }
code, pre, .mono { font-family: var(--mono); }
code { background: var(--bg-3); border-radius: 6px; padding: 2px 7px; font-size: 0.9em; color: var(--ink-2); word-break: break-word; }
pre { background: var(--bg-3); border-radius: var(--radius-sm); padding: 16px 18px; overflow: auto; font-size: 13.5px; line-height: 1.55; margin: 0 0 16px; color: var(--ink-2); }
pre code { background: none; padding: 0; font-size: inherit; color: inherit; }
pre .k { color: var(--ember); }
pre .c { color: var(--faint); }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }

/* header */
.top { padding: 26px 0; }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 20px; color: var(--ink); letter-spacing: -0.02em; }
.brand:hover { color: var(--ink); }
.brand span { color: var(--ember); }
.nav { display: flex; gap: 28px; flex-wrap: wrap; }
.nav a { color: var(--ink-2); font-weight: 500; font-size: 15px; }
.nav a:hover, .nav a.here { color: var(--ember); }
.powered { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-weight: 500; font-size: 14px; }
.powered:hover { color: var(--ink-2); }
.powered img { height: 18px; width: auto; display: block; }
.nav .powered { margin-left: 12px; padding-left: 24px; }

/* sections */
section { padding: 72px 0; }
section.tinted { background: var(--bg-2); }
section.hero { padding: 72px 0 80px; }
.hero h1 { max-width: 780px; margin-bottom: 20px; }
.hero .lead { max-width: 680px; }
.section-head { margin-bottom: 36px; max-width: 720px; }
.section-head p { color: var(--muted); margin-top: 12px; }

/* buttons: one primary, everything else is a quiet link */
.btn {
  display: inline-block;
  background: var(--ember);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 22px;
  border-radius: var(--radius-sm);
  border: 0;
  cursor: pointer;
  font-family: inherit;
  box-shadow: 0 8px 22px rgba(241, 119, 44, 0.28);
  transition: background 0.15s, transform 0.15s;
}
.btn:hover { background: var(--ember-hi); color: #fff; transform: translateY(-1px); }
.btn:disabled { opacity: 0.6; cursor: default; transform: none; }
.link { background: none; border: 0; padding: 0; font: inherit; font-size: 14px; color: var(--ember); cursor: pointer; font-weight: 500; }
.link:hover { color: var(--ember-hi); }
.link.quiet { color: var(--muted); }
.link.quiet:hover { color: var(--ink-2); }
.actions { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; margin-top: 28px; }

/* cards */
.grid { display: grid; gap: 24px; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.card { background: #fff; border-radius: var(--radius); padding: 28px 28px 24px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 10px; }
.card h3 { margin-bottom: 2px; color: var(--ink); }
.card:hover h3 { color: var(--ember); }
.card p { color: var(--muted); margin: 0; font-size: 15px; }
.card .meta { color: var(--faint); font-size: 13px; margin-top: auto; padding-top: 12px; }
.card .meta b { color: var(--ink-2); font-weight: 600; }
.card.accent { background: var(--ember-soft); }
.protocols { display: flex; gap: 12px 30px; flex-wrap: wrap; margin-top: 30px; }
.protocols span { color: var(--ink-2); font-weight: 500; font-size: 15px; display: inline-flex; align-items: center; gap: 8px; }
.protocols span::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ember); display: inline-block; }

/* steps */
.steps { display: grid; gap: 28px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); counter-reset: step; }
.step { position: relative; padding-left: 52px; }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 0; top: 2px; width: 36px; height: 36px; border-radius: 50%; background: var(--ember-soft); color: var(--ember); font-weight: 700; display: grid; place-items: center; }
.step h3 { margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 15px; }

/* docs */
.doc { display: grid; grid-template-columns: 220px 1fr; gap: 56px; align-items: start; }
.toc { position: sticky; top: 24px; display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
.toc a { color: var(--muted); }
.toc a:hover { color: var(--ember); }
.toc .group { color: var(--faint); font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; margin-top: 14px; font-weight: 600; }
.doc-main { min-width: 0; }
.block { margin-bottom: 64px; }
.block > h2 { margin-bottom: 14px; }
.block > h3 { margin: 32px 0 10px; }
.block > p { color: var(--ink-2); }
.block .doc-note { color: var(--muted); font-size: 15px; }

table { width: 100%; border-collapse: collapse; margin: 14px 0 24px; font-size: 14.5px; }
th { text-align: left; color: var(--faint); font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; padding: 8px 12px; }
td { padding: 10px 12px; vertical-align: top; color: var(--ink-2); }
tbody tr:nth-child(odd) td { background: var(--bg-2); }
tbody tr td:first-child { border-radius: 8px 0 0 8px; }
tbody tr td:last-child { border-radius: 0 8px 8px 0; }
td .type { color: var(--faint); font-family: var(--mono); font-size: 13px; }
td .req { color: var(--ember); font-size: 12px; font-weight: 600; margin-left: 6px; }
td .ro { color: var(--faint); font-size: 12px; margin-left: 6px; }

.endpoint { display: grid; grid-template-columns: 72px 1fr; gap: 14px; align-items: baseline; padding: 10px 0; }
.endpoint .m { font-family: var(--mono); font-weight: 700; font-size: 13px; color: var(--ember); }
.endpoint .m.get { color: var(--good); }
.endpoint .p { font-family: var(--mono); font-size: 14px; color: var(--ink); word-break: break-all; }
.endpoint .d { grid-column: 2; color: var(--muted); font-size: 14.5px; margin-top: -4px; }
.endpoint .d code { font-size: 0.88em; }

.example { margin: 18px 0 26px; }
.example .bar { display: flex; gap: 18px; align-items: center; margin-bottom: 8px; font-size: 13px; color: var(--muted); }
.example .out { display: none; margin-top: -8px; }
.example .out.show { display: block; }
.example .out pre { max-height: 360px; }

.connect { background: #fff; border-radius: var(--radius); padding: 24px 28px; box-shadow: var(--shadow); margin: 8px 0 40px; }
.connect dl { display: grid; grid-template-columns: 140px 1fr; gap: 10px 18px; margin: 0; font-size: 14.5px; }
.connect dt { color: var(--muted); }
.connect dd { margin: 0; font-family: var(--mono); font-size: 13.5px; word-break: break-all; }

.creds { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; margin: 16px 0 30px; }
.cred { background: var(--bg-2); border-radius: var(--radius-sm); padding: 14px 16px; }
.cred .l { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; }
.cred .v { font-family: var(--mono); font-size: 14px; margin-top: 4px; word-break: break-all; }

.notice { background: var(--ember-soft); border-radius: var(--radius-sm); padding: 14px 18px; font-size: 14.5px; color: var(--ink-2); margin: 16px 0 24px; }

footer { padding: 48px 0 64px; color: var(--faint); font-size: 14px; }
footer .wrap { display: flex; flex-direction: column; gap: 22px; }
footer a { color: var(--muted); }
footer a:hover { color: var(--ember); }
.powered-foot { display: flex; gap: 28px; align-items: flex-start; flex-wrap: wrap; }
.powered-foot .powered { flex: 0 0 auto; font-size: 15px; color: var(--ink-2); }
.powered-foot .powered img { height: 22px; }
.powered-foot > div { max-width: 640px; line-height: 1.6; }
.foot-meta { color: var(--faint); }

@media (max-width: 860px) {
  h1 { font-size: 34px; }
  h2 { font-size: 26px; }
  section { padding: 52px 0; }
  .doc { grid-template-columns: 1fr; gap: 24px; }
  .toc { position: static; flex-direction: row; flex-wrap: wrap; gap: 6px 18px; }
  .toc .group { display: none; }
  .endpoint { grid-template-columns: 1fr; gap: 4px; }
  .endpoint .d { grid-column: 1; }
  .connect dl { grid-template-columns: 1fr; }
}