/* ambrogio.tazlab.net — one stylesheet, no framework, no CDN, no build step, no JavaScript.
   The palette is the product's own, read from ambrogio/v2/api/ui/app.css:15-16. */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/inter.woff2") format("woff2");
}

:root {
  --bg: #14161a;        /* the ground */
  --panel: #1a1d23;     /* cards, code, the menu's active row */
  --bar: #171a1f;       /* the header — the engine's own bar ground */
  --fg: #e8e6e3;        /* body text */
  --dim: #8a8f98;       /* secondary text and idle menu links */
  --line: #2a2e36;      /* rules and borders */
  --accent: #7aa2f7;    /* links, the current page, focus */
  --radius: 10px;
  --measure: 720px;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

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

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

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 22px; }

/* Header */
.site-header { background: var(--bar); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; min-height: 62px; padding-top: 10px; padding-bottom: 10px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--fg); font-weight: 650; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
/* The mark. site/logo.png is android-chrome-512x512.png of the Ambrogio icon set
   (ambrogio/v2/api/, from app-icons.zip): 512×512, 121,589 B — the largest the set
   holds. Drawn at 40 px, a header mark and not a favicon (the favicon stays
   favicon.ico, in the tab's business). 40 px keeps the header's own 62 px min-height
   in charge, so the mark grows without moving anything else on the page. */
.brand img { display: block; width: 40px; height: 40px; }
.brand .name { font-size: 17px; }
.brand .tld { color: var(--dim); font-weight: 500; }

/* Side menu, and the page beside it */
.shell { display: grid; grid-template-columns: 216px minmax(0, 1fr); }
.side-menu { border-right: 1px solid var(--line); padding: 32px 20px 40px 0; }
.side-menu .menu-label { text-transform: uppercase; letter-spacing: 0.08em; font-size: 11px; font-weight: 650; color: var(--dim); margin: 0 0 8px; }
.side-menu a { display: block; padding: 7px 10px; margin: 0 -10px; border-radius: 6px; color: var(--dim); font-size: 15px; font-weight: 500; }
.side-menu a:hover { background: var(--panel); color: var(--fg); text-decoration: none; }
.side-menu a[aria-current="page"] { background: var(--panel); color: var(--fg); }

main { display: block; padding: 42px 0 8px 30px; max-width: var(--measure); }

/* Type */
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; font-weight: 680; }
h1 { font-size: 2.3rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.3rem; margin: 2.4rem 0 0.7rem; }
h3 { font-size: 1.05rem; margin: 1.6rem 0 0.4rem; }
p { margin: 0 0 1rem; }
.lead { font-size: 1.18rem; color: var(--dim); max-width: 46ch; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.08em; font-size: 12px; font-weight: 650; color: var(--accent); margin: 0 0 0.8rem; }
ul, ol { padding-left: 1.15rem; }
li { margin: 0.25rem 0; }
li strong { color: var(--fg); }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.4rem 0; }

code { font-family: var(--mono); font-size: 0.86em; background: var(--panel); padding: 0.12em 0.4em; border-radius: 5px; }
pre { font-family: var(--mono); font-size: 0.84rem; line-height: 1.55; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; overflow-x: auto; }
pre code { background: none; padding: 0; font-size: inherit; }

/* The four deep dives */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 1.2rem 0 0; padding: 0; list-style: none; }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px 14px; background: var(--panel); }
.card:hover { border-color: var(--accent); }
.card h3 { margin: 0; }
.card p { color: var(--dim); font-size: 15px; margin: 0.3rem 0 0; }

/* The delivery lane — the one diagram on the site */
.lane { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 1rem 0 1.4rem; padding: 0; list-style: none; }
.lane .step { border: 1px solid var(--line); border-radius: 8px; padding: 7px 11px; font-size: 14px; font-weight: 550; background: var(--panel); white-space: nowrap; }
.lane .arrow { color: var(--dim); font-size: 14px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 22px 0 40px; color: var(--dim); font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }

@media (max-width: 720px) {
  body { font-size: 16px; }
  h1 { font-size: 1.9rem; }
  .shell { grid-template-columns: 1fr; }
  .side-menu { display: flex; flex-wrap: wrap; gap: 6px; border-right: 0; border-bottom: 1px solid var(--line); padding: 12px 0; }
  .side-menu .menu-label { display: none; }
  .side-menu a { margin: 0; padding: 6px 9px; }
  main { padding: 30px 0 8px; }
  .cards { grid-template-columns: 1fr; }
}