:root {
  color-scheme: light dark;
  --bg: #f4f0e8;
  --raised: #fffdf8;
  --ink: #1c1630;
  --muted: #5c5670;
  --line: #e3dcd1;
  --accent: #3a22a8;
  --accent-ink: #ffffff;
  --soft: #efeaff;
  --code: #f3eee6;
  --note: #efeaff;
  --note-ink: #2a1a78;
  --warn: #fff4e0;
  --warn-ink: #6a3d00;
  --shadow: 0 1px 0 rgba(28, 22, 48, 0.04);
  --header: 4.4rem;
  --side: 16.75rem;
  --measure: 42rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #140e24;
    --raised: #1d1633;
    --ink: #f4efe6;
    --muted: #b7b0c9;
    --line: #342a4e;
    --accent: #c4b6ff;
    --accent-ink: #1c1630;
    --soft: #2a2150;
    --code: #241b3c;
    --note: #2a2150;
    --note-ink: #e6dfff;
    --warn: #3a2a14;
    --warn-ink: #ffd79a;
    --shadow: none;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font: 1.0625rem/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.5rem 0.8rem;
  border-radius: 0.4rem;
  z-index: 20;
}

.skip:focus { top: 0.6rem; }

a { color: var(--accent); }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--raised) 92%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.site-header .bar,
.site-footer .bar {
  max-width: 76rem;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.brand img {
  display: block;
  width: 28px;
  height: 28px;
  border-radius: 7px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem 1.1rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
}

.site-nav a:hover { color: var(--accent); }

.site-nav a[aria-current="page"] {
  color: var(--accent);
  font-weight: 600;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink) !important;
  text-decoration: none !important;
  font-weight: 600;
}

.button.secondary {
  background: transparent;
  color: var(--accent) !important;
  box-shadow: inset 0 0 0 1.5px var(--accent);
}

.hero, .panel, .layout {
  max-width: 76rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 0;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0.2rem 0 0.8rem;
  max-width: 14ch;
}

.kicker {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.lead {
  font-size: 1.2rem;
  line-height: 1.5;
  max-width: 38rem;
  margin: 0 0 1.4rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0 0 0.5rem;
  list-style: none;
}

.facts li {
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  color: var(--muted);
  font-size: 0.92rem;
}

h2 {
  font-size: 1.55rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 2.2rem 0 0.6rem;
}

h3 {
  font-size: 1.12rem;
  margin: 1.6rem 0 0.4rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr));
  gap: 0.85rem;
  margin: 1rem 0 2rem;
}

.card {
  display: block;
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem 1.05rem 1.05rem;
  color: inherit;
  text-decoration: none;
  box-shadow: var(--shadow);
  min-height: 100%;
}

.card:hover { border-color: var(--accent); }

.card strong {
  display: block;
  margin-bottom: 0.3rem;
}

.card span, .muted { color: var(--muted); }

.section-head {
  max-width: var(--measure);
}

.layout {
  display: grid;
  grid-template-columns: var(--side) minmax(0, 1fr);
  gap: 2rem;
  padding-bottom: 1rem;
  align-items: start;
}

.side-nav {
  position: sticky;
  top: calc(var(--header) + 1rem);
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 0.4rem 0.85rem 0.85rem;
}

.side-nav summary {
  cursor: pointer;
  font-weight: 600;
  min-height: 2.75rem;
  display: flex;
  align-items: center;
}

.side-nav a {
  display: block;
  color: var(--ink);
  text-decoration: none;
  padding: 0.28rem 0;
  font-size: 0.95rem;
}

.side-nav a:hover,
.side-nav a[aria-current="page"] {
  color: var(--accent);
}

.side-nav a[aria-current="page"] { font-weight: 700; }

article {
  max-width: 46rem;
  min-width: 0;
}

article > h1 {
  font-size: clamp(2rem, 4vw, 2.7rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0.15rem 0 0.7rem;
}

.page-toc {
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  padding: 0.8rem 1rem;
  margin: 1.2rem 0 0.4rem;
}

.page-toc strong {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.page-toc ol {
  margin: 0;
  padding-left: 1.2rem;
}

ol.steps {
  padding-left: 1.3rem;
}

ol.steps > li,
article li { margin: 0.35rem 0; }

.callout {
  background: var(--note);
  color: var(--note-ink);
  border-radius: 0.9rem;
  padding: 0.9rem 1rem;
  margin: 1.1rem 0;
}

.callout.warn {
  background: var(--warn);
  color: var(--warn-ink);
}

.callout strong { display: block; margin-bottom: 0.2rem; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.4rem;
  font-size: 0.98rem;
  background: var(--raised);
  border-radius: 0.8rem;
  overflow: hidden;
}

th, td {
  text-align: left;
  vertical-align: top;
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--line);
}

th:first-child,
td:first-child {
  white-space: nowrap;
}

th {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

tr:last-child td { border-bottom: 0; }

code, kbd {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
}

code {
  background: var(--code);
  padding: 0.08em 0.35em;
  border-radius: 0.3rem;
}

kbd {
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 0.35rem;
  padding: 0.05em 0.4em;
  background: var(--raised);
}

pre {
  background: var(--code);
  border-radius: 0.9rem;
  padding: 1rem 1.05rem;
  overflow-x: auto;
  line-height: 1.45;
}

pre code {
  background: none;
  padding: 0;
}

.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 2.4rem 0 0.5rem;
}

.pager a {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  text-decoration: none;
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  padding: 0.8rem 0.95rem;
  color: var(--ink);
  min-height: 4.4rem;
}

.pager a.next { text-align: right; align-items: flex-end; }
.pager a span { color: var(--muted); font-size: 0.82rem; }
.pager a:hover { border-color: var(--accent); }

.site-footer {
  margin-top: 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer .bar { padding-top: 1.4rem; padding-bottom: 2rem; align-items: flex-start; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 0.8rem 1.1rem; }
.site-footer a { color: var(--muted); }

.path {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 2rem;
}

.path a {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: 0.7rem;
  align-items: start;
  text-decoration: none;
  color: inherit;
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  padding: 0.75rem 0.9rem;
}

.path a:hover { border-color: var(--accent); }

.path b {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 860px) {
  .site-header .bar {
    flex-wrap: wrap;
    align-items: center;
  }
  .site-nav {
    width: 100%;
    justify-content: flex-start;
  }
  .layout { grid-template-columns: 1fr; padding-top: 1.25rem; }
  .side-nav { position: static; }
  .hero { padding-top: 1.6rem; }
  .pager { grid-template-columns: 1fr; }
  .pager a.next { text-align: left; align-items: flex-start; }
}

@media (min-width: 861px) {
  .side-nav > summary { display: none; }
  .side-nav > nav { display: block !important; }
  .side-nav { padding-top: 0.85rem; }
}

article figure {
  margin: 1.4rem 0 1.6rem;
}

article figure img {
  display: block;
  width: min(100%, 42rem);
  height: auto;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: var(--raised);
}

article figcaption {
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.92rem;
}

@media print {
  .site-header, .side-nav, .pager, .actions, .skip { display: none !important; }
  .layout { display: block; max-width: none; }
  body { background: white; color: black; }
  a { color: black; }
}