/* ShopReady design system: shared tokens, layout and components. */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap");

:root {
  --bg: #f6f7f9; --panel: #ffffff; --sunk: #f0f2f5; --ink: #0f1419; --muted: #5b6472; --line: #e4e7ec;
  --accent: #0a8a5f; --accent-ink: #ffffff; --accent-bg: #e3f5ee; --brand2: #4f46e5;
  --pass: #0a7d55; --pass-bg: #e3f5ee; --fail: #c2261c; --fail-bg: #fdecea;
  --warn: #9a6400; --warn-bg: #fdf3dc; --skip: #8a93a0;
  --glow1: rgba(16, 185, 129, .16); --glow2: rgba(79, 70, 229, .12);
  --shadow: 0 1px 2px rgba(15, 20, 25, .04), 0 4px 16px rgba(15, 20, 25, .05);
  --shadow-lg: 0 2px 4px rgba(15, 20, 25, .04), 0 12px 32px rgba(15, 20, 25, .09);
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f14; --panel: #121821; --sunk: #0f141b; --ink: #e8ecf1; --muted: #93a0b0; --line: #222b36;
    --accent: #34d399; --accent-ink: #052e1f; --accent-bg: #0f2e24; --brand2: #818cf8;
    --pass: #34d399; --pass-bg: #0f2e24; --fail: #ff8577; --fail-bg: #3a1714;
    --warn: #f5c451; --warn-bg: #33270b; --skip: #6b7684;
    --glow1: rgba(52, 211, 153, .10); --glow2: rgba(129, 140, 248, .10);
    --shadow: 0 1px 2px rgba(0, 0, 0, .3); --shadow-lg: 0 12px 32px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
html, body { overflow-x: clip; } /* hero glows bleed past the column on purpose */
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; } a:hover { text-decoration: underline; }
code, pre, .mono { font-family: var(--mono); }
main { max-width: 1040px; margin: 0 auto; padding: 36px 20px 80px; }
::selection { background: var(--accent-bg); }

/* Nav */
.nav { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10; background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(160%) blur(12px); -webkit-backdrop-filter: saturate(160%) blur(12px); border-bottom: 1px solid var(--line); }
.nav .in { max-width: 1040px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 17px; letter-spacing: -0.02em; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand svg { flex: none; }
.brand small { font-weight: 600; font-size: 11px; color: var(--muted); letter-spacing: .02em; }
.nav .links { display: flex; gap: 4px; flex-wrap: wrap; }
.nav .links a { color: var(--muted); font-weight: 600; font-size: 14px; padding: 6px 10px; border-radius: 8px; }
.nav .links a:hover { color: var(--ink); background: var(--sunk); text-decoration: none; }
.nav .links a.on { color: var(--ink); background: var(--sunk); }
.nav .cta { margin-left: auto; }
@media (max-width: 640px) { .nav .in { gap: 10px; flex-wrap: wrap; } .nav .cta { display: none; } }

/* Footer */
footer { border-top: 1px solid var(--line); margin-top: 48px; background: var(--panel); }
footer .in { max-width: 1040px; margin: 0 auto; padding: 28px 20px 40px; display: flex; gap: 18px 28px; flex-wrap: wrap;
  font-size: 13px; color: var(--muted); align-items: flex-start; }
footer .in > :first-child { flex: 1 1 340px; }
footer .in a { color: var(--muted); font-weight: 600; } footer .in a:hover { color: var(--ink); }

/* Buttons */
button, .btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 18px; border: 1px solid transparent;
  border-radius: 10px; font: 600 14.5px/1.2 var(--sans); background: var(--ink); color: var(--bg); cursor: pointer;
  transition: transform .08s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease; }
button:hover:not(:disabled), .btn:hover { text-decoration: none; box-shadow: var(--shadow); }
button:active:not(:disabled) { transform: translateY(1px); }
button:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary, button.primary { background: var(--accent); color: var(--accent-ink); }
button.ghost, .btn.ghost { background: var(--panel); color: var(--ink); border-color: var(--line); font-weight: 500; }
button.ghost:hover:not(:disabled), .btn.ghost:hover { border-color: var(--muted); }
input:focus, textarea:focus, select:focus, button:focus-visible, summary:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px; }

/* Surfaces */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; box-shadow: var(--shadow); }
.card.lift { transition: transform .15s ease, box-shadow .15s ease; }
.card.lift:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.muted { color: var(--muted); } .small { font-size: 13px; }
.mono { font-size: 12px; }
.tag { font: 500 12px var(--mono); padding: 2px 8px; border-radius: 6px; background: var(--sunk); border: 1px solid var(--line); }
.pill { font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 99px; letter-spacing: .04em; text-transform: uppercase; white-space: nowrap; }
.pill.ok { background: var(--pass-bg); color: var(--pass); } .pill.bad { background: var(--fail-bg); color: var(--fail); }
.pill.warn { background: var(--warn-bg); color: var(--warn); } .pill.none { background: var(--sunk); color: var(--muted); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; font-weight: 600; color: var(--accent);
  background: var(--accent-bg); padding: 5px 12px; border-radius: 99px; }
.icon { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--accent-bg); color: var(--accent); margin-bottom: 12px; }
.icon svg { width: 19px; height: 19px; }

/* Hero band used on page tops */
.band { position: relative; isolation: isolate; }
.band::before { content: ""; position: absolute; inset: -40px -200px 0; z-index: -1; pointer-events: none;
  background: radial-gradient(600px 260px at 15% 20%, var(--glow1), transparent 70%),
              radial-gradient(520px 240px at 85% 10%, var(--glow2), transparent 70%); }
.grad { background: linear-gradient(100deg, var(--accent), var(--brand2)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Prose pages (Learn, About) */
.prose h1 { font-size: clamp(30px, 4.4vw, 42px); letter-spacing: -0.03em; line-height: 1.1; margin: 14px 0 12px; font-weight: 800; }
.prose .lede { font-size: 18px; color: var(--muted); margin: 0 0 28px; max-width: 44em; }
.prose h2 { font-size: 24px; letter-spacing: -0.02em; margin: 52px 0 12px; font-weight: 750; scroll-margin-top: 80px; }
.prose h3 { font-size: 16px; margin: 24px 0 6px; }
.prose p, .prose li { max-width: 46em; }
.prose li { margin: 4px 0; }
.prose code { font-size: 13px; background: var(--sunk); padding: 1px 6px; border-radius: 5px; border: 1px solid var(--line); }
.prose pre { font-size: 12.5px; line-height: 1.55; background: var(--sunk); border-radius: 12px; padding: 14px 16px; overflow-x: auto; }
.toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 8px; }
.toc a { font-size: 13px; font-weight: 500; padding: 5px 12px; border-radius: 99px; border: 1px solid var(--line); color: var(--muted); background: var(--panel); }
.toc a:hover { color: var(--ink); text-decoration: none; border-color: var(--muted); }
.tablewrap { overflow-x: auto; }
.prose table, table.data { border-collapse: collapse; width: 100%; font-size: 14px; }
.prose th, .prose td, table.data th, table.data td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th, table.data th { font-size: 11.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 600; background: var(--sunk); }
.prose tr:last-child td, table.data tr:last-child td { border-bottom: 0; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 16px 0; }
.cols .card { padding: 20px 22px; }
.cols .card h3 { margin: 0 0 6px; font-size: 15.5px; }
.cols .card p { margin: 0; color: var(--muted); font-size: 14px; }
.flow { display: grid; margin: 16px 0; counter-reset: step; }
.flow > div { display: grid; grid-template-columns: 40px 1fr; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.flow > div::before { counter-increment: step; content: counter(step); width: 30px; height: 30px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--brand2)); color: #fff; font-weight: 700; display: grid; place-items: center; font-size: 13px; }
.flow b { display: block; }
.callout { border: 1px solid var(--line); border-left: 4px solid var(--accent); background: var(--panel); padding: 14px 18px; border-radius: 12px; margin: 18px 0; box-shadow: var(--shadow); }