/* =========================================================================
   insiders Data API — developer portal
   Sibling page to insiders.bot/home: same dark base (#070707/#0a0a0a),
   Jura + DM Mono, cobalt-first accent system ported from the /home tokens
   (signal #4d6eff · cobalt #0028dc · cobalt-light #c7d1ff, cobalt-gradient
   CTAs, acid #e1ff00 strictly as tiny punctuation, #61ff69/#ff6161 up/down).
   Original docs-platform layout: fixed sidebar + single reading column,
   LED-particle hero field (2D-canvas port of /home's particle aesthetic).
   Self-contained: fonts self-hosted in /fonts/, no CDN requests.
   ========================================================================= */

@font-face {
  font-family: "Jura";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url("fonts/jura-var.woff2") format("woff2");
}
@font-face {
  font-family: "DM Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/dm-mono-400.woff2") format("woff2");
}
@font-face {
  font-family: "DM Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("fonts/dm-mono-500.woff2") format("woff2");
}

:root {
  --bg: #070707;
  --panel: #0a0a0a;
  --panel-2: #0d0e12;
  --code-bg: #0b0c10;

  /* /home accent system */
  --signal: #4d6eff;
  --signal-strong: #5e7cff;
  --signal-soft: #8ea6ff;          /* readable signal for small text */
  --cobalt: #0028dc;
  --cobalt-light: #c7d1ff;
  --signal-08: rgba(77, 110, 255, 0.1);
  --signal-14: rgba(77, 110, 255, 0.14);
  --signal-30: rgba(77, 110, 255, 0.32);
  --signal-50: rgba(77, 110, 255, 0.5);
  --acid: #e1ff00;                 /* punctuation only */
  --grad: linear-gradient(123deg, #0028dc 11.19%, #c7d1ff 129.62%);

  --tx: rgba(255, 255, 255, 0.92);
  --tx-70: rgba(255, 255, 255, 0.7);
  --tx-dim: rgba(255, 255, 255, 0.52);
  --tx-faint: rgba(255, 255, 255, 0.35);

  --line: rgba(255, 255, 255, 0.1);
  --line-soft: rgba(255, 255, 255, 0.07);
  --fill: rgba(255, 255, 255, 0.035);

  --up: #61ff69;
  --up-soft: #98f99a;
  --down: #ff6161;
  --warn: #fbbf5d;

  --font-sans: "Jura", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "DM Mono", ui-monospace, "SF Mono", "Menlo", "Consolas", "Courier New", monospace;

  --r: 8px;
  --r-sm: 5px;
  --side-w: 264px;
}

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scrollbar-color: var(--signal-30) var(--bg);
  overflow-x: clip;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--tx);
  font-family: var(--font-sans);
  font-size: 15.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
::selection { background: rgba(77, 110, 255, 0.35); color: #fff; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--signal-30); border-radius: 5px; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; }

a { color: var(--signal-soft); text-decoration: none; }
a:hover { color: var(--cobalt-light); }
.mono { font-family: var(--font-mono); }
.dim { color: var(--tx-dim); }
.small { font-size: 13.5px; }
.accent { color: var(--signal-soft); }
code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: var(--fill);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  padding: 1px 6px;
}
h1, h2, h3, h4 { font-family: var(--font-sans); margin: 0; font-weight: 600; letter-spacing: -0.01em; }

/* =========================================================================
   SIDEBAR
   ========================================================================= */
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--side-w);
  background: var(--panel);
  border-right: 1px solid var(--line);
  padding: 26px 22px 22px;
  display: flex;
  flex-direction: column;
  z-index: 40;
  overflow-y: auto;
}
.side-logo { display: block; line-height: 0; }
.side-logo img { width: 174px; height: auto; image-rendering: pixelated; }
.side-sub {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tx-dim);
  margin: 14px 0 0 2px;
}
.side-ver {
  color: var(--cobalt-light);
  border: 1px solid var(--signal-30);
  background: var(--signal-08);
  border-radius: 999px;
  padding: 0 8px;
  margin-left: 6px;
  font-size: 10.5px;
}
.side-live {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--tx-dim);
  margin: 18px 0 6px 2px;
}
.side-live .dot {
  width: 6px; height: 6px;
  background: var(--acid);
  animation: pulse 2s ease-in-out infinite;
}
.side-nav { display: flex; flex-direction: column; margin-top: 12px; }
.side-group {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--tx-faint);
  margin: 18px 0 6px 2px;
}
.navlink {
  display: block;
  color: var(--tx-70);
  font-size: 14px;
  padding: 7px 10px 7px 14px;
  border-radius: var(--r-sm);
  border-left: 2px solid transparent;
  transition: color 0.15s, background 0.15s;
}
.navlink:hover { color: var(--tx); background: var(--fill); }
.navlink[data-active="true"] {
  color: var(--cobalt-light);
  background: var(--signal-08);
  border-left-color: var(--signal);
}
.side-foot { margin-top: auto; padding-top: 22px; display: flex; flex-direction: column; gap: 12px; }
.side-ext {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--tx-dim);
}
.side-ext:hover { color: var(--cobalt-light); }

/* =========================================================================
   MOBILE TOP BAR
   ========================================================================= */
.topbar {
  display: none;
  position: sticky;
  top: 0;
  z-index: 50;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: rgba(7, 7, 7, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.topbar-logo { line-height: 0; }
.topbar-logo img { width: 135px; height: auto; image-rendering: pixelated; }
.menu-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tx);
  background: var(--fill);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 8px 14px;
  cursor: pointer;
}
.menu-btn[aria-expanded="true"] { color: var(--cobalt-light); border-color: var(--signal-30); }
.mobile-nav {
  display: none;
  position: sticky;
  top: 53px;
  z-index: 49;
  flex-direction: column;
  background: rgba(10, 10, 10, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  padding: 8px 12px 12px;
}
.mobile-nav.open { display: flex; }
.mnavlink {
  color: var(--tx-70);
  font-size: 15px;
  padding: 10px 12px;
  border-radius: var(--r-sm);
}
.mnavlink:hover { color: var(--tx); background: var(--fill); }

/* =========================================================================
   MAIN COLUMN
   ========================================================================= */
main { margin-left: var(--side-w); padding: 0 52px; }
section {
  max-width: 900px;
  margin: 0 auto;
  padding: 68px 0;
  border-top: 1px solid var(--line-soft);
}
section.hero { border-top: none; padding-top: 108px; position: relative; }

/* hero particle field — 2D-canvas port of /home's LED-square particles */
.hero-field {
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  max-width: calc(100vw - var(--side-w));
  height: 100%;
  pointer-events: none;
  z-index: 0;
  -webkit-mask-image: linear-gradient(to bottom, black 0%, black 62%, transparent 96%);
  mask-image: linear-gradient(to bottom, black 0%, black 62%, transparent 96%);
}
.hero > *:not(.hero-field) { position: relative; z-index: 1; }

/* /home eyebrow: acid square + tracked mono label */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  margin: 0 0 16px;
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  flex: none;
  background: var(--acid);
}
.hero .eyebrow::before { animation: pulse 2.2s ease-in-out infinite; }
h1 {
  font-size: clamp(38px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 22px;
}
h1 .accent {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
h2 { font-size: 27px; margin: 0 0 14px; }
h3 { font-size: 17px; margin: 0 0 8px; }
h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tx-70);
  margin: 0 0 14px;
}
.lede {
  font-size: 17.5px;
  color: var(--tx-70);
  max-width: 620px;
  margin: 0 0 30px;
}
.intro { color: var(--tx-dim); max-width: 680px; margin: 0 0 28px; }
.intro b { color: var(--tx-70); }

/* buttons — primary is the /home cobalt-gradient CTA */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
  border-radius: var(--r-sm);
  padding: 11px 22px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background-image: var(--grad);
  background-size: 200% 200%;
  background-position: 0% 50%;
  color: #fff;
}
.btn-primary:hover { background-position: 100% 50%; filter: brightness(1.1); color: #fff; }
.btn-primary:disabled { opacity: 0.55; cursor: default; }
.btn-ghost { background: transparent; color: rgba(255, 255, 255, 0.6); border-color: rgba(255, 255, 255, 0.35); }
.btn-ghost:hover { border-color: #fff; color: #fff; }
.btn-sm { padding: 8px 16px; font-size: 13.5px; }
.btn-block { width: 100%; }

.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 44px; }

.statrow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: rgba(10, 10, 10, 0.82);
  backdrop-filter: blur(6px);
  overflow: hidden;
}
.stat { padding: 20px 22px; border-right: 1px solid var(--line-soft); }
.stat:last-child { border-right: none; }
.stat .v { font-family: var(--font-mono); font-weight: 500; font-size: 21px; color: var(--tx); }
.stat .k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tx-faint);
  margin-top: 5px;
}

/* =========================================================================
   CARDS / GRIDS
   ========================================================================= */
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 22px;
}
.twocol { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step { display: flex; flex-direction: column; }
.step .n {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--acid);
  margin-bottom: 10px;
}
.step .n::after { content: " /"; color: var(--tx-faint); }
.step p { color: var(--tx-dim); font-size: 14px; margin: 0 0 14px; flex: 1; }

/* code blocks */
.code {
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  overflow: hidden;
}
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 12px;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tx-faint);
}
.code pre {
  margin: 0;
  padding: 13px 14px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 12.75px;
  line-height: 1.6;
  color: var(--tx-70);
}
.code pre code { background: none; border: none; padding: 0; font-size: inherit; }
.copybtn {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tx-dim);
  background: var(--fill);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 3px 10px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.copybtn:hover { color: var(--cobalt-light); border-color: var(--signal-30); }
.copybtn.done { color: var(--up-soft); border-color: rgba(97, 255, 105, 0.35); }

/* inline endpoint chip (wss url) */
.epc {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 5px 8px 5px 12px;
  margin: 2px 0;
  white-space: nowrap;
}
.epc code { background: none; border: none; padding: 0; color: var(--signal-soft); font-size: 13px; }

/* JSON syntax colors — cobalt-family, restrained */
.j-key { color: var(--signal-soft); }
.j-str { color: var(--up-soft); }
.j-num { color: #ecc48d; }
.j-bool { color: var(--cobalt-light); }
.j-null { color: var(--tx-faint); }

/* =========================================================================
   AUTH — tiers, tables
   ========================================================================= */
.tiers { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.tier-name {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--tx-70);
  margin-bottom: 16px;
}
.tier.partner { border-color: var(--signal-30); }
.tier.partner .tier-name { color: var(--cobalt-light); }
.tier-limits { display: flex; gap: 34px; margin-bottom: 14px; }
.tier-limits .v { font-family: var(--font-mono); font-weight: 500; font-size: 24px; }
.tier-limits .k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tx-faint);
  margin-top: 3px;
}
.tier ul { margin: 0; padding-left: 18px; color: var(--tx-dim); font-size: 14px; }
.tier li { margin: 4px 0; }

table.hdr { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.hdr td { padding: 8px 10px 8px 0; border-top: 1px solid var(--line-soft); vertical-align: top; }
table.hdr td:first-child { font-family: var(--font-mono); font-size: 12.5px; color: var(--tx-70); white-space: nowrap; padding-right: 16px; }
table.hdr td:last-child { color: var(--tx-dim); }
.badge {
  font-family: var(--font-mono);
  font-size: 11px;
  border-radius: 4px;
  padding: 2px 8px;
  border: 1px solid;
}
.badge.b4 { color: var(--warn); border-color: rgba(251, 191, 93, 0.35); background: rgba(251, 191, 93, 0.07); }
.badge.b5 { color: var(--down); border-color: rgba(255, 97, 97, 0.35); background: rgba(255, 97, 97, 0.07); }

/* =========================================================================
   GET A KEY
   ========================================================================= */
.keypanel { padding: 26px; }
.keyform {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 14px;
  align-items: end;
}
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tx-faint);
  margin-bottom: 7px;
}
.txt {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--tx);
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 11px 13px;
  transition: border-color 0.15s;
}
.txt::placeholder { color: var(--tx-faint); }
.txt:focus { outline: none; border-color: var(--signal-50); }
.form-msg { font-size: 13.5px; margin-top: 12px; min-height: 1em; font-family: var(--font-mono); }
.form-msg.ok { color: var(--up-soft); }
.form-msg.err { color: var(--down); }
.key-result { display: none; margin-top: 18px; }
.key-result.show { display: block; }
.key-warn {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13.5px;
  color: var(--warn);
  border: 1px solid rgba(251, 191, 93, 0.3);
  background: rgba(251, 191, 93, 0.06);
  border-radius: var(--r-sm);
  padding: 11px 14px;
  margin-bottom: 14px;
}
.key-show {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--code-bg);
  border: 1px solid var(--signal-30);
  border-radius: var(--r-sm);
  padding: 12px 14px;
}
.key-show code {
  flex: 1;
  background: none; border: none; padding: 0;
  font-size: 13.5px;
  color: var(--cobalt-light);
  word-break: break-all;
}
.key-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 14px; }
.key-meta > div {
  background: var(--fill);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  padding: 11px 14px;
}
.key-meta .k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tx-faint);
}
.key-meta .v { font-family: var(--font-mono); font-size: 16px; margin-top: 3px; }

/* playground key bar */
.keybar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 15px 20px;
  margin-bottom: 22px;
  position: sticky;
  top: 14px;
  z-index: 30;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(10px);
}
.keybar label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tx-faint);
  white-space: nowrap;
}
.keybar .status { font-family: var(--font-mono); font-size: 12px; color: var(--tx-dim); white-space: nowrap; }

/* =========================================================================
   ENDPOINT REFERENCE
   ========================================================================= */
.endpoints { display: flex; flex-direction: column; gap: 10px; }
details.ep { padding: 0; overflow: hidden; transition: border-color 0.15s; }
details.ep:hover { border-color: var(--signal-30); }
details.ep[open] { border-color: var(--signal-30); }
.ep-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.ep-head::-webkit-details-marker { display: none; }
.method {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  border-radius: 4px;
  padding: 3px 9px;
  border: 1px solid;
}
.method.get { color: var(--signal-soft); border-color: var(--signal-30); background: var(--signal-08); }
.method.post { color: var(--up-soft); border-color: rgba(97, 255, 105, 0.3); background: rgba(97, 255, 105, 0.07); }
.ep-path { font-family: var(--font-mono); font-size: 13.5px; color: var(--tx); }
.ep-path .p-var { color: var(--signal-soft); }
.ep-summary { margin-left: auto; font-size: 13px; color: var(--tx-faint); }
.ep-chevron { color: var(--tx-faint); font-size: 17px; transition: transform 0.2s; }
details.ep[open] .ep-chevron { transform: rotate(90deg); }
.ep-body { padding: 4px 18px 20px; border-top: 1px solid var(--line-soft); }
.ep-body h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tx-faint);
  margin: 18px 0 10px;
}
.params-scroll { overflow-x: auto; }
table.params { width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: 480px; }
table.params th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tx-faint);
  padding: 0 14px 7px 0;
  border-bottom: 1px solid var(--line);
}
table.params td { padding: 7px 14px 7px 0; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
td.pname { font-family: var(--font-mono); font-size: 12.5px; color: var(--signal-soft); white-space: nowrap; }
td.ptype { font-family: var(--font-mono); font-size: 12px; color: var(--tx-faint); white-space: nowrap; }
td.pdesc { color: var(--tx-dim); }
.resp-sample pre { max-height: 420px; overflow: auto; }

/* try-it */
.tryit {
  margin-top: 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--panel-2);
  padding: 16px 18px;
}
.tryit-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}
.tryit-head .lbl {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cobalt-light);
}
.tryit-params {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}
.tryit-req {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--tx-dim);
  background: var(--code-bg);
  border: 1px solid var(--line-soft);
  border-radius: 5px;
  padding: 9px 12px;
  margin-bottom: 12px;
  overflow-x: auto;
  white-space: nowrap;
}
.tryit-req .m-get { color: var(--signal-soft); margin-right: 8px; }
.tryit-req .u { color: var(--tx-70); }
.tryit-actions { display: flex; align-items: center; gap: 14px; }
.tryit-status { font-family: var(--font-mono); font-size: 12.5px; }
.st-ok { color: var(--up-soft); }
.st-err { color: var(--down); }
.st-time { color: var(--tx-faint); }
.tryit-out { display: none; margin-top: 12px; }
.tryit-out.show { display: block; }
.tryit-out pre {
  margin: 0;
  background: var(--code-bg);
  border: 1px solid var(--line-soft);
  border-radius: 5px;
  padding: 13px 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  max-height: 420px;
  overflow: auto;
  color: var(--tx-70);
}
.tryit-note { margin-top: 16px; }

/* =========================================================================
   WEBSOCKET
   ========================================================================= */
.chan-list { list-style: none; margin: 0; padding: 0; }
.chan-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line-soft);
}
.chan-list li:last-child { border-bottom: none; }
.chan-list .cn { font-family: var(--font-mono); font-size: 13px; color: var(--signal-soft); }
.chan-list .cd { font-family: var(--font-mono); font-size: 11.5px; color: var(--tx-faint); text-align: right; }

.ws-demo { margin-top: 16px; padding: 0; overflow: hidden; }
.ws-demo-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line-soft);
}
.conn-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  color: var(--tx-dim);
}
.conn-pill .dot { width: 7px; height: 7px; background: var(--tx-faint); }
.conn-pill[data-state="connecting"] { color: var(--warn); border-color: rgba(251, 191, 93, 0.3); }
.conn-pill[data-state="connecting"] .dot { background: var(--warn); animation: pulse 1s ease-in-out infinite; }
.conn-pill[data-state="open"] { color: var(--tx-70); border-color: rgba(225, 255, 0, 0.3); }
.conn-pill[data-state="open"] .dot { background: var(--acid); animation: pulse 2s ease-in-out infinite; }
.conn-pill[data-state="error"] { color: var(--down); border-color: rgba(255, 97, 97, 0.35); }
.conn-pill[data-state="error"] .dot { background: var(--down); }

.ws-subs {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line-soft);
}
.ws-chip {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--tx-dim);
  background: var(--fill);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.ws-chip[data-on="true"] {
  color: var(--cobalt-light);
  border-color: var(--signal-30);
  background: var(--signal-08);
}
.chip-hint { font-size: 11px; align-self: center; }

.ticker { min-height: 240px; max-height: 340px; overflow-y: auto; padding: 6px 0; }
.ticker .empty { padding: 90px 24px; text-align: center; color: var(--tx-faint); font-size: 14px; }
.ticker .row {
  display: grid;
  grid-template-columns: 78px 56px minmax(0, 1fr) 92px 60px;
  gap: 12px;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 12.5px;
  padding: 5px 20px;
  border-bottom: 1px solid var(--line-soft);
  animation: rowIn 0.25s ease-out;
}
.ticker .row .t { color: var(--tx-faint); }
.ticker .row .side { text-transform: uppercase; letter-spacing: 0.06em; }
.ticker .row .side.buy { color: var(--up); }
.ticker .row .side.sell { color: var(--down); }
.ticker .row .side.mech { color: var(--tx-dim); }
.ticker .row .asset { color: var(--tx-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ticker .row .amt { text-align: right; color: var(--tx); }
.ticker .row .px { text-align: right; color: var(--signal-soft); }
.ticker .row.mkt { grid-template-columns: 78px minmax(0, 1fr); }
.ticker .row.mkt .side { color: var(--cobalt-light); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.ticker-stats {
  display: flex;
  gap: 26px;
  padding: 13px 20px;
  border-top: 1px solid var(--line-soft);
  background: var(--panel-2);
}
.ticker-stats .k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tx-faint);
  margin-right: 8px;
}
.ticker-stats .v { font-family: var(--font-mono); font-size: 14px; color: var(--tx); }

/* =========================================================================
   LIMITS
   ========================================================================= */
.rl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.rl-card p { color: var(--tx-dim); font-size: 14px; margin: 0; }

/* =========================================================================
   FOOTER
   ========================================================================= */
footer { border-top: 1px solid var(--line); margin-top: 20px; }
.foot {
  max-width: 900px;
  margin: 0 auto;
  padding: 34px 0 44px;
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
}
.foot-logo { line-height: 0; }
.foot-logo img { width: 145px; height: auto; image-rendering: pixelated; opacity: 0.85; }
.foot .links { display: flex; gap: 20px; flex-wrap: wrap; }
.foot .links a { color: var(--tx-dim); font-size: 13.5px; }
.foot .links a:hover { color: var(--cobalt-light); }
.foot .cr { margin-left: auto; font-family: var(--font-mono); font-size: 11.5px; color: var(--tx-faint); }

/* toast */
.toast {
  position: fixed;
  bottom: 26px;
  left: 50%;
  transform: translate(-50%, 12px);
  background: var(--panel-2);
  border: 1px solid var(--signal-30);
  color: var(--tx);
  font-family: var(--font-mono);
  font-size: 12.5px;
  border-radius: var(--r-sm);
  padding: 10px 18px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 90;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* =========================================================================
   MOTION
   ========================================================================= */
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }
@keyframes rowIn { from { opacity: 0; transform: translateY(-3px); } to { opacity: 1; transform: none; } }

/* =========================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width: 1120px) {
  .sidebar { display: none; }
  .topbar { display: flex; }
  main { margin-left: 0; padding: 0 28px; }
  section { padding: 52px 0; }
  section.hero { padding-top: 56px; }
  .hero-field { max-width: 100vw; }
}
@media (max-width: 860px) {
  .steps, .rl-grid { grid-template-columns: 1fr; }
  .twocol, .tiers { grid-template-columns: 1fr; }
  .statrow { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line-soft); }
  .keyform { grid-template-columns: 1fr; }
  .keybar { grid-template-columns: 1fr; gap: 8px; position: static; }
  .keybar .status { white-space: normal; }
  .ep-summary { display: none; }
  .ticker .row { grid-template-columns: 66px 48px minmax(0, 1fr) 76px; }
  .ticker .row .px { display: none; }
  .foot .cr { margin-left: 0; }
}
@media (max-width: 560px) {
  main { padding: 0 18px; }
  .hero-cta .btn { flex: 1; }
  .epc { white-space: normal; }
  .key-meta { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}