/* L'Imitatore: black and white, one accent (#e0301e, 4.55:1 on white). */
:root {
  --fg: #111;
  --bg: #fff;
  --muted: #555;
  --line: #111;
  --accent: #e0301e;
  --serif: ui-serif, "Iowan Old Style", "Charter", Georgia, Cambria, "Times New Roman", serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", "DejaVu Sans Mono", monospace;
  --wrap: 68rem;
  --text: 40rem;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--serif);
  font-size: 1.125rem;
  line-height: 1.6;
}
img, svg { max-width: 100%; height: auto; display: block; }

.skip-link {
  position: absolute; left: 1rem; top: -4rem;
  background: var(--fg); color: var(--bg);
  padding: .5rem .9rem; font-family: var(--mono); font-size: .9rem;
  z-index: 10;
}
.skip-link:focus { top: 1rem; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

a { color: var(--fg); text-decoration-thickness: 1px; text-underline-offset: .18em; }
a:hover { text-decoration-color: var(--accent); text-decoration-thickness: 2px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 1.25rem; }

/* header */
.site-header { border-bottom: 2px solid var(--line); }
.site-header .wrap {
  display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1.5rem;
  padding-top: 1rem; padding-bottom: 1rem;
}
.site-title {
  font-family: var(--mono); font-weight: 700; font-size: 1rem;
  letter-spacing: .02em; text-decoration: none; margin-right: auto;
  display: inline-flex; align-items: center; gap: .5rem;
}
.site-title::before {
  content: ""; width: .7rem; height: .7rem; background: var(--accent); display: inline-block;
}
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .25rem 1.1rem; }
.site-nav a, .lang a, .lang span {
  font-family: var(--mono); font-size: .875rem; text-decoration: none; padding: .2rem 0;
  display: inline-block;
}
.site-nav a:hover { text-decoration: underline; text-decoration-color: var(--accent); }
.site-nav a[aria-current="page"] { box-shadow: inset 0 -3px 0 var(--accent); }
.lang { margin: 0; display: flex; align-items: center; gap: .4rem; font-family: var(--mono); font-size: .875rem; }
.lang [aria-current="true"] { font-weight: 700; }
.lang a { text-decoration: underline; }
.nav-toggle {
  display: none; font: inherit; font-family: var(--mono); font-size: .875rem;
  background: var(--bg); color: var(--fg); border: 2px solid var(--fg);
  padding: .3rem .7rem; cursor: pointer;
}

@media (max-width: 52rem) {
  .js .nav-toggle { display: inline-block; }
  .site-nav { flex-basis: 100%; }
  .js .site-nav { display: none; }
  .js .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; border-top: 1px solid var(--line); }
  .site-nav li { border-bottom: 1px solid #ddd; }
  .site-nav a { display: block; padding: .7rem 0; font-size: 1rem; }
}

/* main */
main { padding: 2.5rem 0 4rem; }
main > .wrap > * { max-width: var(--text); }
main > .wrap > .wide { max-width: none; }
h1, h2, h3 { font-family: var(--serif); line-height: 1.2; font-weight: 600; }
h1 { font-size: clamp(2.2rem, 6vw, 3.6rem); margin: 0 0 1.25rem; letter-spacing: -.01em; }
h2 { font-size: 1.5rem; margin: 2.5rem 0 .75rem; }
h3 { font-size: 1.15rem; margin: 1.75rem 0 .5rem; }
p { margin: 0 0 1rem; }
.kicker {
  font-family: var(--mono); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted); margin-bottom: .5rem;
}
.lead { font-size: clamp(1.25rem, 2.6vw, 1.6rem); line-height: 1.4; }
.note { font-family: var(--mono); font-size: .85rem; color: var(--muted); }

.hero-figure { margin: 2rem 0; border-top: 2px solid var(--line); border-bottom: 2px solid var(--line); padding: 1rem 0; }
.hero-figure img { width: 100%; }
figcaption { font-family: var(--mono); font-size: .8rem; color: var(--muted); margin-top: .5rem; }

.toc { list-style: none; padding: 0; margin: 2rem 0 0; border-top: 1px solid var(--line); }
.toc li { border-bottom: 1px solid var(--line); }
.toc a { display: flex; gap: 1rem; padding: .8rem 0; text-decoration: none; }
.toc a span:first-child { font-family: var(--mono); font-size: .85rem; color: var(--muted); min-width: 2rem; padding-top: .2rem; }
.toc a:hover span:last-child { text-decoration: underline; text-decoration-color: var(--accent); }

/* steps */
.steps { list-style: none; padding: 0; margin: 1.5rem 0; counter-reset: step; }
.steps li { counter-increment: step; position: relative; padding: 0 0 .75rem 3rem; }
.steps li::before {
  content: counter(step); position: absolute; left: 0; top: .1rem;
  width: 2rem; height: 2rem; border: 2px solid var(--fg);
  font-family: var(--mono); font-size: .9rem; display: flex; align-items: center; justify-content: center;
}
.steps h2 { margin: 0 0 .5rem; font-size: 1.25rem; }

.diagram { margin: 2rem 0; border: 2px solid var(--line); padding: 1rem; }
.diagram svg { width: 100%; }

/* data */
code, pre, .mono, table.data { font-family: var(--mono); }
.table-scroll { overflow-x: auto; margin: 1.25rem 0; }
table.data { border-collapse: collapse; font-size: .875rem; width: 100%; min-width: 20rem; }
table.data caption { text-align: left; font-size: .8rem; color: var(--muted); padding-bottom: .5rem; }
table.data th, table.data td { text-align: left; padding: .5rem .75rem .5rem 0; border-bottom: 1px solid var(--line); vertical-align: top; }
table.data thead th { border-bottom: 2px solid var(--line); }

.example { border-left: 4px solid var(--accent); padding: .25rem 0 .25rem 1.25rem; margin: 1.5rem 0; }
.example-label {
  font-family: var(--mono); font-size: .8rem; text-transform: uppercase; letter-spacing: .06em;
  margin: 0 0 1rem;
}
.log { list-style: none; padding: 0; margin: 0; }
.log li { margin: 0 0 1.25rem; }
.log p { margin: 0 0 .3rem; }
.log code {
  display: block; font-size: .78rem; color: var(--muted); overflow-wrap: anywhere; line-height: 1.5;
}
.log .err code { color: var(--fg); }
.log .err code::before { content: "\25A0  "; color: var(--accent); }

dl.facts { margin: 1rem 0; border-top: 1px solid var(--line); }
dl.facts > div { display: grid; grid-template-columns: 11rem 1fr; gap: 1rem; padding: .75rem 0; border-bottom: 1px solid var(--line); }
dl.facts dt { font-family: var(--mono); font-size: .85rem; padding-top: .2rem; }
dl.facts dd { margin: 0; }
@media (max-width: 36rem) { dl.facts > div { grid-template-columns: 1fr; gap: .25rem; } }

.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
@media (max-width: 44rem) { .cols { grid-template-columns: 1fr; } }
.cols section { border-top: 2px solid var(--line); }

/* footer */
.site-footer { border-top: 2px solid var(--line); font-family: var(--mono); font-size: .8rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 1rem; padding-top: 1.25rem; padding-bottom: 2rem; }
.site-footer p { margin: 0; }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
  a { transition: text-decoration-color .15s; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
@media print {
  .site-nav, .nav-toggle, .lang, .skip-link { display: none !important; }
}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}
.virtual-link { margin-top: 2rem; padding-left: .9rem; border-left: 4px solid var(--accent); }