/* GA4 MCP — BuildItWithAI Studio
   Palette: Happy Hues #17 — cream, navy, pink, teal. No dark surfaces. */

:root {
  --cream: #fef6e4;
  --navy: #001858;
  --pink: #f582ae;
  --teal: #8bd3dd;

  --ink: var(--navy);
  --ink-70: rgba(0, 24, 88, 0.7);
  --ink-55: rgba(0, 24, 88, 0.55);
  --rule: rgba(0, 24, 88, 0.14);
  --rule-strong: rgba(0, 24, 88, 0.28);
  --paper: #fffdf6;

  --sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --serif: ui-serif, "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;

  --w: 1120px;
  --prose: 68ch;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---------- shell ---------- */

.wrap { width: min(100% - 2.5rem, var(--w)); margin-inline: auto; }

.skip {
  position: absolute; left: -9999px;
  background: var(--navy); color: var(--cream); padding: .6rem 1rem; z-index: 50;
}
.skip:focus { left: 1rem; top: 1rem; }

/* ---------- top bar ---------- */

.top {
  border-bottom: 1px solid var(--rule);
  background: var(--cream);
  position: sticky; top: 0; z-index: 20;
}
.top__in {
  display: flex; align-items: center; gap: 1.5rem;
  min-height: 62px;
}
.brand {
  display: inline-flex; align-items: center; gap: .55rem;
  font-weight: 700; letter-spacing: -.02em; color: var(--ink);
  text-decoration: none; font-size: 1rem; white-space: nowrap;
}
.brand__mark {
  width: 22px; height: 22px; flex: none;
  background: var(--navy);
  border-radius: 2px;
  display: grid; place-items: center;
  color: var(--cream); font-size: 10px; font-weight: 800; letter-spacing: 0;
}
.brand__ver {
  font-family: var(--mono); font-size: .72rem; font-weight: 400;
  color: var(--ink-55); border: 1px solid var(--rule); border-radius: 2px;
  padding: .05rem .3rem; margin-left: .1rem;
}
.top__nav { display: flex; gap: 1.3rem; margin-left: auto; align-items: center; }
.top__nav a {
  color: var(--ink); text-decoration: none; font-size: .9rem; font-weight: 500;
  padding: .2rem 0; border-bottom: 2px solid transparent;
}
.top__nav a:hover { border-bottom-color: var(--pink); }
.top__nav a.is-active { border-bottom-color: var(--navy); }
.top__nav a.gh { color: var(--ink-70); }

/* ---------- page frame ---------- */

.frame { display: grid; grid-template-columns: 218px minmax(0, 1fr); gap: 3.5rem; padding: 2.5rem 0 4rem; }
.frame--full { grid-template-columns: minmax(0, 1fr); }

/* ---------- sidebar ---------- */

.side { font-size: .875rem; position: sticky; top: 86px; align-self: start; max-height: calc(100vh - 110px); overflow: auto; }
.side__group + .side__group { margin-top: 1.6rem; }
.side__h {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .09em; text-transform: uppercase;
  color: var(--ink-55); margin: 0 0 .5rem;
}
.side ul { list-style: none; margin: 0; padding: 0; }
.side li { margin: 0; }
.side a {
  display: block; padding: .26rem .55rem; margin-left: -.55rem;
  color: var(--ink-70); text-decoration: none; border-radius: 2px; line-height: 1.4;
}
.side a:hover { background: rgba(139, 211, 221, .28); color: var(--ink); }
.side a.is-active { background: var(--navy); color: var(--cream); font-weight: 600; }
.side a.is-active:hover { background: var(--navy); }

/* ---------- prose ---------- */

main { min-width: 0; }
.prose { max-width: var(--prose); }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; line-height: 1.15; letter-spacing: -.022em; text-wrap: balance; }
h1 { font-size: clamp(2rem, 4.4vw, 2.9rem); margin: 0 0 1rem; }
h2 { font-size: 1.5rem; margin: 2.8rem 0 .8rem; padding-top: .2rem; }
h3 { font-size: 1.14rem; margin: 1.9rem 0 .5rem; font-family: var(--sans); font-weight: 700; letter-spacing: -.01em; }
h4 { font-size: .95rem; margin: 1.4rem 0 .4rem; font-family: var(--sans); font-weight: 700; }

p { margin: 0 0 1.05rem; }
.lede { font-size: 1.18rem; color: var(--ink-70); line-height: 1.55; max-width: 60ch; }
.eyebrow {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-55); margin: 0 0 .7rem;
}
a { color: var(--ink); text-decoration-color: var(--pink); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { background: rgba(245, 130, 174, .18); }
strong { font-weight: 650; }
em { font-style: italic; }
hr { border: 0; border-top: 1px solid var(--rule); margin: 2.4rem 0; }

ul, ol { margin: 0 0 1.1rem; padding-left: 1.3rem; }
li { margin: .3rem 0; }
li > ul, li > ol { margin-top: .35rem; }

blockquote {
  margin: 1.4rem 0; padding: .1rem 0 .1rem 1.1rem;
  border-left: 3px solid var(--teal); color: var(--ink-70);
}
blockquote p:last-child { margin-bottom: 0; }

code {
  font-family: var(--mono); font-size: .875em;
  background: rgba(0, 24, 88, .06); padding: .1em .34em; border-radius: 2px;
}

/* ---------- code blocks ---------- */

.cb { margin: 1.2rem 0 1.5rem; border-radius: 3px; overflow: hidden; background: var(--navy); }
.cb__bar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .42rem .8rem; background: rgba(255, 255, 255, .06);
  border-bottom: 1px solid rgba(254, 246, 228, .12);
}
.cb__lang { font-family: var(--mono); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; color: var(--teal); }
.cb__copy {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .06em; text-transform: uppercase;
  background: transparent; color: rgba(254, 246, 228, .72);
  border: 1px solid rgba(254, 246, 228, .28); border-radius: 2px;
  padding: .12rem .42rem; cursor: pointer;
}
.cb__copy:hover { background: rgba(254, 246, 228, .12); color: var(--cream); }
.cb pre {
  margin: 0; padding: .9rem 1rem; overflow-x: auto;
  font-family: var(--mono); font-size: .84rem; line-height: 1.65; color: var(--cream);
}
.cb pre code { background: none; padding: 0; font-size: inherit; color: inherit; }

/* ---------- tables ---------- */

.tw { overflow-x: auto; margin: 1.3rem 0 1.6rem; border: 1px solid var(--rule); border-radius: 3px; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; }
th, td { text-align: left; padding: .55rem .8rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { background: rgba(0, 24, 88, .05); font-family: var(--mono); font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; font-weight: 600; }
tr:last-child td { border-bottom: 0; }

/* ---------- callouts ---------- */

.note {
  border-left: 3px solid var(--pink); background: rgba(245, 130, 174, .1);
  padding: .85rem 1rem; margin: 1.3rem 0; border-radius: 0 2px 2px 0;
}
.note p:last-child { margin-bottom: 0; }
.note--teal { border-left-color: var(--teal); background: rgba(139, 211, 221, .18); }
.note__label {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .09em; text-transform: uppercase;
  color: var(--ink-55); display: block; margin-bottom: .3rem;
}

/* ---------- home ---------- */

.hero { padding: 4.5rem 0 3.2rem; border-bottom: 1px solid var(--rule); }
.hero__grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 3.4rem; align-items: start; }
.hero h1 { font-size: clamp(2.4rem, 5.6vw, 3.7rem); margin-bottom: 1.1rem; }
.hero .lede { font-size: 1.22rem; }
.hero__cta { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.9rem; }

.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .92rem; font-weight: 600; text-decoration: none;
  padding: .62rem 1.05rem; border-radius: 2px; border: 1px solid var(--navy);
}
.btn--primary { background: var(--navy); color: var(--cream); }
.btn--primary:hover { background: #001240; }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: rgba(139, 211, 221, .35); }

.card {
  border: 1px solid var(--rule-strong); border-radius: 3px; background: var(--paper);
  padding: 1.1rem 1.15rem;
}
.card__h { font-family: var(--mono); font-size: .68rem; letter-spacing: .09em; text-transform: uppercase; color: var(--ink-55); margin: 0 0 .6rem; }
.card .cb { margin: .5rem 0 0; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-bottom: 1px solid var(--rule); }
.stat { padding: 1.5rem 0; border-right: 1px solid var(--rule); padding-right: 1.2rem; }
.stat:last-child { border-right: 0; }
.stat__n { font-family: var(--serif); font-size: 1.85rem; line-height: 1; letter-spacing: -.02em; }
.stat__l { font-size: .8rem; color: var(--ink-55); margin-top: .35rem; }

.section { padding: 3.4rem 0; border-bottom: 1px solid var(--rule); }
.section:last-of-type { border-bottom: 0; }
.section__h { margin: 0 0 .5rem; }
.section__sub { color: var(--ink-70); margin: 0 0 2rem; max-width: 58ch; }

.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }

.feat { border-top: 2px solid var(--navy); padding-top: .9rem; }
.feat h3 { margin: .1rem 0 .4rem; font-size: 1rem; }
.feat p { font-size: .92rem; color: var(--ink-70); margin: 0; }

.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; }
.steps > li { counter-increment: s; position: relative; padding-left: 2.6rem; margin: 0 0 1.7rem; }
.steps > li::before {
  content: counter(s, decimal-leading-zero);
  position: absolute; left: 0; top: .1rem;
  font-family: var(--mono); font-size: .78rem; font-weight: 700;
  color: var(--cream); background: var(--navy);
  width: 1.75rem; height: 1.75rem; border-radius: 2px;
  display: grid; place-items: center;
}
.steps h3 { margin-top: 0; }

.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--rule-strong); border-radius: 3px; overflow: hidden; }
.compare > div { padding: 1.2rem 1.3rem; }
.compare > div:first-child { border-right: 1px solid var(--rule-strong); background: var(--paper); }
.compare > div:last-child { background: rgba(139, 211, 221, .16); }
.compare h4 { margin: 0 0 .7rem; font-family: var(--mono); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-55); }
.compare ul { margin: 0; padding-left: 1.1rem; font-size: .92rem; }

/* ---------- page nav (prev/next) ---------- */

.pagenav { display: flex; justify-content: space-between; gap: 1rem; border-top: 1px solid var(--rule); margin-top: 3rem; padding-top: 1.2rem; font-size: .9rem; }
.pagenav a { text-decoration: none; }
.pagenav span { color: var(--ink-55); font-size: .75rem; display: block; font-family: var(--mono); text-transform: uppercase; letter-spacing: .08em; }

/* ---------- footer ---------- */

.foot { border-top: 1px solid var(--rule); padding: 2.2rem 0 3rem; font-size: .85rem; color: var(--ink-55); }
.foot__in { display: flex; flex-wrap: wrap; gap: 1rem 2rem; align-items: baseline; justify-content: space-between; }
.foot a { color: var(--ink-70); }
.foot__links { display: flex; flex-wrap: wrap; gap: 1.2rem; }

/* ---------- 404 ---------- */

.nf { padding: 6rem 0; max-width: 44ch; }

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .frame { grid-template-columns: minmax(0, 1fr); gap: 1.8rem; }
  .side { display: none; }
  .hero__grid { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .grid3, .grid2, .compare { grid-template-columns: minmax(0, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .compare > div:first-child { border-right: 0; border-bottom: 1px solid var(--rule-strong); }
  .top__nav { gap: .9rem; }
  .top__nav a:not(.gh) { font-size: .84rem; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .top__nav a:not(.gh):not(:first-child) { display: none; }
  .brand__ver { display: none; }
}

@media print {
  .top, .side, .foot, .cb__copy { display: none; }
  .frame { grid-template-columns: 1fr; }
  .cb { background: #fff; border: 1px solid #ccc; }
  .cb pre { color: #000; }
}

/* long commands inside cards wrap instead of clipping */
.card .cb pre { white-space: pre-wrap; word-break: break-word; font-size: .78rem; }