/* ═══════════════════════════════════════════════════════════════════
   docs.css — developer docs page only.

   Restyles docs.html's existing markup in the language of the
   "Metergraph Design System" Claude Design project
   (claude.ai/design/p/b2c756f5-2f3c-4df8-a55e-a4f4e2101231), matching
   index.html/pricing.html (landing.css). Class names and page behavior
   (report.js tabs, copy buttons, TOC scroll-spy) are unchanged from the
   report.css era — only the skin is new. Token values are copied
   verbatim from the design project's tokens/; re-sync rather than
   editing values in place.
   ═══════════════════════════════════════════════════════════════════ */

/* ——— tokens (design-system sync) ——— */
:root {
  --ink-1: #131312; --ink-2: #3D3C38; --ink-3: #6C6A61; --ink-4: #96938A;
  --paper-0: #FFFFFF; --paper-1: #F4F2EC; --paper-2: #EAE7DE;
  --line-1: #131312; --line-2: #D8D4C8; --line-3: #E6E3D9;
  --green-700: #0A472D; --green-600: #0E5B3A; --green-500: #1A7A50; --green-100: #DFEBE2;
  --blue-600: #1B44E4; --orange-600: #E85D10; --orange-100: #FBE8DB;
  --yellow-500: #F2B705; --red-600: #DE2A1B;
  --chartreuse: #D9E84A; --mint: #9FE087; --butter: #F3E96B;
  --surface-inverse: var(--ink-1);
  --text-on-inverse: #F4F2EC;
  --accent: var(--green-600); --accent-hover: var(--green-700);
  --link: var(--blue-600); --link-hover: #132FA8; --focus-ring: var(--blue-600);
  --font-core: 'ABC Diatype', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono: 'ABC Diatype Mono', ui-monospace, 'SF Mono', Consolas, monospace;
  --display-stretch: 100%;
  --num-stretch: 100%;
  --heading-weight: 500;
  --subhead-weight: 500;
  --r-1: 2px; --r-2: 4px; --r-3: 10px; --r-pill: 999px;
  --ease-swift: cubic-bezier(0.2, 0.7, 0.2, 1);
  --dur-1: 120ms;
  --measure: 1160px;
  --gutter: 28px;
  --body-col: 66ch;
  /* dimmed roles on the dark code surface */
  --on-inverse-55: rgba(244, 242, 236, .55);
  --on-inverse-line: rgba(244, 242, 236, .16);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper-0);
  color: var(--ink-1);
  font-family: var(--font-core);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--chartreuse); color: var(--ink-1); }

a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, summary:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  font-weight: var(--heading-weight);
  font-stretch: var(--display-stretch);
  letter-spacing: -0.03em;
  line-height: 1.2;
  text-wrap: balance;
  color: var(--ink-1);
}
h1 { font-size: clamp(32px, 3.4vw, 40px); letter-spacing: -0.03em; }
h2 { font-size: clamp(26px, 2.6vw, 32px); line-height: 1.25; margin-bottom: 0.6em; }
h3 { font-size: 20px; font-weight: var(--subhead-weight); letter-spacing: -0.01em; margin-bottom: 0.35em; }

p { margin: 0 0 1em; color: var(--ink-2); }
b { color: var(--ink-1); font-weight: var(--subhead-weight); }
a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; text-underline-offset: 2px; }

code { font-family: var(--font-mono); font-stretch: var(--num-stretch); font-size: 0.88em; }
.mono { font-family: var(--font-mono); font-stretch: var(--num-stretch); }
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

.doc {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ——— masthead ——— */
.masthead {
  display: flex;
  align-items: center;
  gap: 22px;
  height: 64px;
  border-bottom: 1px solid var(--line-3);
}
.wordmark {
  font-weight: 620;
  font-stretch: var(--display-stretch);
  letter-spacing: -0.03em;
  font-size: 19px;
  color: var(--ink-1);
  text-decoration: none;
}
.wordmark:hover { color: var(--ink-1); text-decoration: none; }
.wordmark-sm { font-size: 16px; }
.runhead {
  margin: 0;
  font-family: var(--font-mono);
  font-stretch: 80%;
  font-size: 10.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-4);
}
.masthead-nav { margin-left: auto; display: flex; gap: 22px; }
.masthead-nav a { font-size: 14px; color: var(--ink-2); }
.masthead-nav a:hover { color: var(--ink-1); }

/* ——— shell: sticky TOC + main column ——— */
.docs-shell {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 56px;
  padding-top: 36px;
}
.docs-main { min-width: 0; }
.docs-main > .sect {
  border-top: 1px solid var(--line-3);
  padding: 48px 0 56px;
}
.docs-main > .sect:first-child { border-top: none; padding-top: 24px; }
.docs-main p, .docs-main ul, .docs-main ol, .docs-main .warn { max-width: var(--body-col); }
.docs-main .scroll-x, .docs-main .steps-n { max-width: none; }

.toc { position: sticky; top: 28px; align-self: start; }
.toc > summary { list-style: none; cursor: default; }
.toc > summary::-webkit-details-marker { display: none; }
.toc-cap {
  font-family: var(--font-mono);
  font-stretch: 80%;
  font-size: 10.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin: 0 0 14px;
}
.toc ol { list-style: none; margin: 0; padding: 0; }
.toc li { margin: 0 0 7px; }
.toc a { font-size: 13.5px; color: var(--ink-3); }
.toc a:hover { color: var(--ink-1); text-decoration: none; }
.toc a.on { color: var(--ink-1); font-weight: var(--subhead-weight); }
.toc .toc-n {
  font-family: var(--font-mono);
  font-stretch: var(--num-stretch);
  font-size: 10px;
  color: var(--ink-4);
  margin-right: 7px;
}

/* ——— prose furniture ——— */
.lede { font-size: 20px; line-height: 1.6; color: var(--ink-2); }

.warn {
  border-left: 2px solid var(--orange-600);
  background: var(--orange-100);
  border-radius: 0 var(--r-2) var(--r-2) 0;
  padding: 12px 16px;
  margin: 20px 0;
  font-size: 14px;
  color: var(--ink-2);
}
.warn b { color: var(--ink-1); font-weight: var(--subhead-weight); }

.api {
  font-family: var(--font-mono);
  font-stretch: var(--num-stretch);
  font-size: 0.85em;
  background: var(--paper-1);
  border: 1px solid var(--line-3);
  border-radius: var(--r-1);
  padding: 1px 6px;
  white-space: nowrap;
}
h3 .api, h4 .api { font-size: 0.92em; background: none; border: none; padding: 0; }

/* numbered onboarding steps */
.steps-n { list-style: none; margin: 0; padding: 0; counter-reset: sn; }
.steps-n > li {
  position: relative;
  padding: 0 0 30px 44px;
  border-left: 1px solid var(--line-2);
  margin-left: 13px;
}
.steps-n > li:last-child { border-left-color: transparent; padding-bottom: 0; }
.steps-n > li::before {
  counter-increment: sn;
  content: counter(sn, decimal-leading-zero);
  position: absolute;
  left: -14px;
  top: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-600);
  color: #F4F2EC;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-stretch: var(--num-stretch);
  font-size: 10px;
}
.steps-n h3 { margin: 2px 0 0.4em; }
.steps-n p { font-size: 14.5px; color: var(--ink-2); }
.steps-n .code { margin: 14px 0 0; }

/* ——— code blocks (dark cards) ——— */
.code, .tabs {
  background: var(--surface-inverse);
  color: var(--text-on-inverse);
  border-radius: 8px;
  overflow: hidden;
  margin: 18px 0;
}
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 16px;
  border-bottom: 1px solid var(--on-inverse-line);
}
.code-cap {
  margin: 0;
  font-size: 12px;
  color: var(--on-inverse-55);
}
.code pre, .tabs-panel > pre {
  margin: 0;
  padding: 16px 18px;
  font-family: var(--font-mono);
  font-stretch: var(--num-stretch);
  font-size: 12.5px;
  line-height: 1.75;
  overflow-x: auto;
}
.code code, .tabs-panel code { font-size: inherit; font-stretch: inherit; }

/* syntax roles on the dark surface */
.cmt { color: var(--on-inverse-55); }
.str { color: var(--butter); }
.hl  { color: var(--mint); }

/* copy button (lives on the dark surface) */
.copy {
  font-family: var(--font-mono);
  font-stretch: 80%;
  font-size: 10px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--on-inverse-55);
  background: transparent;
  border: 1px solid rgba(244, 242, 236, .3);
  border-radius: var(--r-1);
  padding: 4px 10px;
  cursor: pointer;
  transition: color var(--dur-1) var(--ease-swift), border-color var(--dur-1) var(--ease-swift);
}
.copy:hover { color: var(--text-on-inverse); border-color: var(--text-on-inverse); }
.copy.done { color: var(--mint); border-color: var(--mint); }

/* language tabs */
.tabs-bar {
  display: flex;
  align-items: stretch;
  gap: 20px;
  padding: 0 16px;
  border-bottom: 1px solid var(--on-inverse-line);
}
.tabs-bar [role="tab"] {
  appearance: none;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px 0 8px;
  font-family: var(--font-mono);
  font-stretch: var(--num-stretch);
  font-size: 11.5px;
  color: var(--on-inverse-55);
  cursor: pointer;
  transition: color var(--dur-1) var(--ease-swift);
}
.tabs-bar [role="tab"]:hover { color: var(--text-on-inverse); }
.tabs-bar [role="tab"][aria-selected="true"] {
  color: var(--text-on-inverse);
  border-bottom-color: var(--mint);
}
.tabs-bar .copy { margin-left: auto; align-self: center; }
.tabs-panel { margin: 0; }
.tabs-cap {
  font-family: var(--font-mono);
  font-stretch: 80%;
  font-size: 10px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--on-inverse-55);
  margin: 0;
  padding: 10px 16px 0;
  display: none; /* shown by the noscript fallback in the page head */
}

/* ——— tables ——— */
.sched-cap {
  font-family: var(--font-mono);
  font-stretch: 80%;
  font-size: 10.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin: 26px 0 10px;
}
.scroll-x { overflow-x: auto; }
.scroll-x .sched { min-width: 640px; }
.scroll-x .sched-vars { min-width: 780px; }
.sched { width: 100%; border-collapse: collapse; }
.sched th {
  font-family: var(--font-mono);
  font-stretch: 80%;
  font-size: 10px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  font-weight: 460;
  color: var(--ink-4);
  text-align: left;
  padding: 0 14px 8px 0;
  border-bottom: 1px solid var(--line-1);
}
.sched td {
  font-size: 13.5px;
  color: var(--ink-2);
  padding: 9px 14px 9px 0;
  border-bottom: 1px solid var(--line-3);
  vertical-align: top;
}
.sched td:first-child { color: var(--ink-1); font-weight: var(--subhead-weight); }
.sched th:last-child, .sched td:last-child { padding-right: 0; }
.sched td.num, .sched th.num { text-align: right; }
.sched td.num {
  font-family: var(--font-mono);
  font-stretch: var(--num-stretch);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.sched .why { font-size: 13px; color: var(--ink-3); font-weight: 400; }
.sched td.mark, .sched th.mark { text-align: center; }
.sched td.mark { color: var(--ink-4); }
.sched td.mark-y { color: var(--green-600); }
.sched-band td {
  font-family: var(--font-mono);
  font-stretch: 80%;
  font-size: 10px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-4);
  border-bottom: none;
  padding: 20px 0 4px;
}
.sched-band:first-child td { padding-top: 4px; }

/* ——— footer ——— */
.footer {
  border-top: 1px solid var(--line-3);
  margin-top: 56px;
  padding: 22px 0 30px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer p { margin: 0; font-size: 12.5px; color: var(--ink-3); }
.footer a { color: var(--ink-3); }
.footer a:hover { color: var(--ink-1); }

/* ——— responsive ——— */
@media (max-width: 1080px) {
  .docs-shell { grid-template-columns: 1fr; gap: 8px; }
  .toc { position: static; }
  .toc > summary { cursor: pointer; }
  .docs-main > .sect:first-child { padding-top: 32px; }
}
@media (max-width: 700px) {
  .masthead { height: auto; padding: 14px 0; flex-wrap: wrap; gap: 10px 22px; }
  .masthead-nav { margin-left: 0; width: 100%; }
  .steps-n > li { padding-left: 36px; }
}

/* The product's logo lockup in place of the text wordmark. */
.wordmark img { display: block; height: 25px; width: auto; }
.footer-row .wordmark img { height: 19px; }
.shot-bar .wordmark img { height: 18px; }