/* Public developer docs: fixed top bar + sticky left nav + reading column with a dark code rail. */
:root {
  --bg: #F4F7EC; --surface: #FFFFFF; --surface-2: #EEF2E3;
  --line: #DCE3CC; --line-strong: #C6D0B3;
  --ink: #0A1A0A; --ink-2: #3F4A3B; --muted: #6A7563;
  --accent: #00AD44; --accent-deep: #008236; --accent-soft: #E2F4D8; --on-accent: #fff;
  --lime: #BBD700;
  --code-bg: #0B150B; --code-surface: #111F11; --code-line: #223522;
  --code-ink: #EAF0DE; --code-muted: #8FA087;
  --good: #0A6B0A; --warn: #8A5A00; --bad: #A42626;
  --warn-soft: #FDF1D3; --bad-soft: #FBE5E3;
  --f-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --f-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --nav-w: 248px; --measure: 46rem;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0B150B; --surface: #111F11; --surface-2: #172917;
    --line: #223522; --line-strong: #2E462E;
    --ink: #EAF0DE; --ink-2: #C2CCB6; --muted: #8FA087;
    --accent: #1FC45B; --accent-deep: #35D56E; --accent-soft: #16301B; --on-accent: #06210C;
    --code-bg: #060D06; --code-surface: #0D180D; --code-line: #1C2C1C;
    --warn-soft: #33290F; --bad-soft: #3A1919;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0B150B; --surface: #111F11; --surface-2: #172917;
  --line: #223522; --line-strong: #2E462E;
  --ink: #EAF0DE; --ink-2: #C2CCB6; --muted: #8FA087;
  --accent: #1FC45B; --accent-deep: #35D56E; --accent-soft: #16301B; --on-accent: #06210C;
  --code-bg: #060D06; --code-surface: #0D180D; --code-line: #1C2C1C;
  --warn-soft: #33290F; --bad-soft: #3A1919;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--f-body); line-height: 1.6; font-size: 15px; }
a { color: var(--accent-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--f-mono); font-size: .9em; }
img { max-width: 100%; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.topbar { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 16px; background: var(--surface); border-bottom: 1px solid var(--line); padding-block: 12px; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
.logo { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 16px; letter-spacing: -.02em; color: var(--ink); }
.logo:hover { text-decoration: none; }
.logo .mark { width: 26px; height: 26px; border-radius: 7px; background: var(--accent); display: grid; place-items: center; color: var(--on-accent); font-weight: 900; font-size: 14px; }
.logo .devtag { font-weight: 600; font-size: 12px; color: var(--muted); border-left: 1px solid var(--line-strong); padding-left: 9px; margin-left: 2px; }
.topbar .spacer { flex: 1; }
.topnav { display: flex; gap: 4px; }
.topnav a { color: var(--ink-2); font-weight: 600; font-size: 13.5px; padding: 7px 11px; border-radius: 7px; }
.topnav a:hover { background: var(--surface-2); color: var(--ink); text-decoration: none; }
.btn { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; font-size: 13.5px; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line-strong); color: var(--ink); background: var(--surface); cursor: pointer; font-family: inherit; }
.btn:hover { background: var(--surface-2); text-decoration: none; }
.btn.primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.btn.primary:hover { background: var(--accent-deep); }
.btn:disabled { opacity: .55; cursor: default; }
.theme-btn { font-size: 15px; padding: 7px 10px; line-height: 1; }

.shell { display: grid; grid-template-columns: var(--nav-w) 1fr; max-width: 1380px; margin: 0 auto; }
.sidenav { position: sticky; align-self: start; top: 54px; height: calc(100vh - 54px); overflow-y: auto; border-right: 1px solid var(--line); padding: 22px 14px 40px; padding-left: max(14px, env(safe-area-inset-left, 0px)); }
.sidenav h4 { font-size: 11px; letter-spacing: .09em; text-transform: uppercase; color: var(--muted); margin: 18px 10px 7px; font-weight: 800; }
.sidenav h4:first-child { margin-top: 0; }
.sidenav a { display: block; color: var(--ink-2); font-size: 13.5px; font-weight: 500; padding: 6px 10px; border-radius: 7px; }
.sidenav a:hover { background: var(--surface-2); color: var(--ink); text-decoration: none; }
.sidenav a.on { background: var(--accent-soft); color: var(--accent-deep); font-weight: 700; }
.sidenav a .verb { font-family: var(--f-mono); font-size: 10px; font-weight: 700; color: var(--accent-deep); margin-right: 7px; }

main { min-width: 0; padding: 40px 0 80px; }
.wrap { max-width: var(--measure); margin: 0 auto; padding-left: max(32px, env(safe-area-inset-left, 0px)); padding-right: max(32px, env(safe-area-inset-right, 0px)); }

.hero { border-bottom: 1px solid var(--line); padding-bottom: 34px; margin-bottom: 36px; }
.eyebrow { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--accent-deep); background: var(--accent-soft); padding: 5px 11px; border-radius: 99px; }
h1 { font-size: clamp(30px, 5vw, 42px); line-height: 1.1; letter-spacing: -.03em; margin: 18px 0 14px; text-wrap: balance; }
.lede { font-size: 17px; color: var(--ink-2); max-width: 40rem; margin: 0; }
.hero .cta-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }

h2 { font-size: 25px; letter-spacing: -.02em; margin: 52px 0 6px; scroll-margin-top: 80px; text-wrap: balance; }
h2 .verb { font-family: var(--f-mono); font-size: 13px; font-weight: 700; color: var(--on-accent); background: var(--accent); padding: 3px 8px; border-radius: 6px; vertical-align: middle; margin-right: 8px; }
h3 { font-size: 16px; margin: 30px 0 4px; letter-spacing: -.01em; scroll-margin-top: 80px; }
p { margin: 12px 0; }
.sub { color: var(--muted); font-size: 14px; margin-top: 2px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 26px 0; }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.step .n { width: 26px; height: 26px; border-radius: 99px; background: var(--accent-soft); color: var(--accent-deep); font-weight: 800; display: grid; place-items: center; font-size: 13px; margin-bottom: 10px; }
.step b { display: block; font-size: 14.5px; }
.step span { color: var(--muted); font-size: 13px; }

.note { border-left: 3px solid var(--accent); background: var(--surface-2); border-radius: 0 10px 10px 0; padding: 13px 16px; margin: 20px 0; font-size: 14px; }
.note b { color: var(--ink); }

.code { background: var(--code-bg); border: 1px solid var(--code-line); border-radius: 12px; overflow: hidden; margin: 18px 0; }
.code .bar { display: flex; align-items: center; gap: 4px; background: var(--code-surface); border-bottom: 1px solid var(--code-line); padding: 0 8px 0 4px; }
.code .tabs { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; flex: 1; }
.code .tabs::-webkit-scrollbar { display: none; }
.code .tabs button { background: none; border: 0; color: var(--code-muted); font-family: var(--f-mono); font-size: 12.5px; font-weight: 600; padding: 10px 11px; cursor: pointer; white-space: nowrap; border-bottom: 2px solid transparent; }
.code .tabs button:hover { color: var(--code-ink); }
.code .tabs button.on { color: var(--code-ink); border-bottom-color: var(--accent); }
.copy { background: none; border: 1px solid var(--code-line); color: var(--code-muted); font-size: 11.5px; font-weight: 700; padding: 5px 10px; border-radius: 6px; cursor: pointer; margin: 6px 2px 6px 6px; white-space: nowrap; font-family: inherit; }
.copy:hover { color: var(--code-ink); border-color: var(--code-muted); }
.copy.done { color: #7FE0A0; border-color: #7FE0A0; }
.code pre { margin: 0; padding: 16px 18px; overflow-x: auto; color: var(--code-ink); font-family: var(--f-mono); font-size: 13px; line-height: 1.65; white-space: pre; }
.code pre[hidden] { display: none; }

.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; margin: 18px 0; }
table { border-collapse: collapse; width: 100%; font-size: 13.5px; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--surface-2); font-size: 11.5px; letter-spacing: .05em; text-transform: uppercase; color: var(--muted); }
tr:last-child td { border-bottom: 0; }
td code { background: var(--surface-2); padding: 1px 6px; border-radius: 5px; color: var(--accent-deep); }
.pill { font-family: var(--f-mono); font-size: 11px; font-weight: 700; padding: 2px 7px; border-radius: 5px; }
.pill.ok { background: var(--accent-soft); color: var(--good); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.bad { background: var(--bad-soft); color: var(--bad); }

.tryit { border: 1px solid var(--line-strong); border-radius: 14px; background: var(--surface); padding: 20px; margin: 26px 0; scroll-margin-top: 80px; }
.tryit-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.tryit-head h3 { margin: 0; }
.tryit .tag { font-size: 11.5px; font-weight: 700; color: var(--accent-deep); background: var(--accent-soft); padding: 3px 9px; border-radius: 99px; }
.f { display: flex; flex-direction: column; gap: 5px; font-size: 13px; font-weight: 600; color: var(--ink-2); margin-top: 12px; }
.f .opt { color: var(--muted); font-weight: 500; }
.editor, .input { font-family: var(--f-mono); font-size: 13px; background: var(--bg); color: var(--ink); border: 1px solid var(--line-strong); border-radius: 9px; padding: 10px 12px; width: 100%; }
.editor { resize: vertical; line-height: 1.5; white-space: pre; overflow-wrap: normal; }
.input { font-family: var(--f-body); }
.keyrow { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tryit-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.tryit-result { margin-top: 16px; }
.tryit-status { font-size: 13px; font-weight: 700; padding: 8px 12px; border-radius: 9px 9px 0 0; }
.tryit-status.ok { background: var(--accent-soft); color: var(--good); }
.tryit-status.warn { background: var(--warn-soft); color: var(--warn); }
.tryit-status.bad { background: var(--bad-soft); color: var(--bad); }
.tryit-result pre { margin: 0; padding: 14px 16px; background: var(--code-bg); color: var(--code-ink); font-family: var(--f-mono); font-size: 12.5px; line-height: 1.6; border-radius: 0 0 11px 11px; overflow-x: auto; white-space: pre; }

footer { border-top: 1px solid var(--line); margin-top: 60px; padding-top: 24px; color: var(--muted); font-size: 13px; }
footer .selectable { user-select: all; color: var(--ink-2); font-weight: 600; }

@media (max-width: 880px) {
  .shell { grid-template-columns: 1fr; }
  .sidenav, .topnav { display: none; }
  .steps { grid-template-columns: 1fr; }
  .keyrow { grid-template-columns: 1fr; }
  main { padding-top: 26px; }
}