/* ============================================================================
   ANE Knowledge Base — Distill-clásico design system
   Warm paper · reading serif · crimson accent · light + dark
   ========================================================================== */

/* ---- Fonts (bundled, OFL) ------------------------------------------------ */
@font-face { font-family:"SourceSerif"; font-weight:400; font-style:normal;
  font-display:swap; src:url("fonts/serif-400.woff2") format("woff2"); }
@font-face { font-family:"SourceSerif"; font-weight:400; font-style:italic;
  font-display:swap; src:url("fonts/serif-400i.woff2") format("woff2"); }
@font-face { font-family:"SourceSerif"; font-weight:600; font-style:normal;
  font-display:swap; src:url("fonts/serif-600.woff2") format("woff2"); }
@font-face { font-family:"SourceSerif"; font-weight:700; font-style:normal;
  font-display:swap; src:url("fonts/serif-700.woff2") format("woff2"); }
@font-face { font-family:"Fraunces"; font-weight:600; font-style:normal;
  font-display:swap; src:url("fonts/display-600.woff2") format("woff2"); }
@font-face { font-family:"Fraunces"; font-weight:900; font-style:normal;
  font-display:swap; src:url("fonts/display-900.woff2") format("woff2"); }
@font-face { font-family:"Fraunces"; font-weight:400; font-style:italic;
  font-display:swap; src:url("fonts/display-400i.woff2") format("woff2"); }
@font-face { font-family:"JetBrainsMono"; font-weight:400; font-style:normal;
  font-display:swap; src:url("fonts/mono-400.woff2") format("woff2"); }
@font-face { font-family:"JetBrainsMono"; font-weight:700; font-style:normal;
  font-display:swap; src:url("fonts/mono-700.woff2") format("woff2"); }

/* ---- Theme tokens -------------------------------------------------------- */
:root {
  --serif:"SourceSerif", Iowan Old Style, Palatino, Georgia, serif;
  --display:"Fraunces", Georgia, "Times New Roman", serif;
  --mono:"JetBrainsMono", ui-monospace, "SF Mono", Menlo, monospace;
  --sans:system-ui, -apple-system, "Segoe UI", sans-serif;

  --paper:#fbf8f1;
  --paper-2:#f4efe4;
  --ink:#211f1a;
  --ink-soft:#3c3a33;
  --muted:#726c5f;
  --rule:#e7e0d1;
  --rule-strong:#d8cfba;
  --accent:#a8261a;
  --accent-soft:#c24a3b;
  --code-bg:#f6f1e6;
  --code-border:#e5ddcb;
  --mark:#f4e6c8;
  --shadow:0 1px 2px rgba(40,32,16,.06), 0 8px 30px rgba(40,32,16,.06);
  --measure:46rem;
  --topbar-h:56px;
}
:root[data-theme="dark"] {
  --paper:#15140f;
  --paper-2:#1d1b15;
  --ink:#ece6d8;
  --ink-soft:#d5cfc0;
  --muted:#9b9484;
  --rule:#2c2a22;
  --rule-strong:#3a372c;
  --accent:#ef7a5f;
  --accent-soft:#f0906f;
  --code-bg:#1b1a13;
  --code-border:#302d23;
  --mark:#4a3d1e;
  --shadow:0 1px 2px rgba(0,0,0,.3), 0 10px 30px rgba(0,0,0,.35);
}

/* ---- Reset / base -------------------------------------------------------- */
*,*::before,*::after { box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:calc(var(--topbar-h) + 12px); }
@media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto;} }
body {
  margin:0; background:var(--paper); color:var(--ink);
  font-family:var(--serif); font-size:18px; line-height:1.72;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
a { color:var(--accent); text-decoration:none; }
a:hover { text-decoration:underline; text-underline-offset:2px; }
::selection { background:var(--mark); }

.skip-link { position:absolute; left:-999px; top:0; background:var(--accent);
  color:#fff; padding:.5rem .8rem; z-index:100; border-radius:0 0 6px 0; }
.skip-link:focus { left:0; }

/* ---- Progress bar -------------------------------------------------------- */
.progress { position:fixed; top:0; left:0; right:0; height:3px; z-index:60;
  background:transparent; pointer-events:none; }
.progress-bar { height:100%; width:0; background:linear-gradient(90deg,var(--accent),var(--accent-soft)); }

/* ---- Topbar -------------------------------------------------------------- */
.topbar {
  position:sticky; top:0; z-index:50; height:var(--topbar-h);
  display:flex; align-items:center; gap:16px; padding:0 20px;
  background:color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter:saturate(1.4) blur(10px);
  border-bottom:1px solid var(--rule);
}
.brand { display:flex; align-items:center; gap:9px; color:var(--ink);
  font-family:var(--mono); font-size:.82rem; letter-spacing:.02em; white-space:nowrap; }
.brand:hover { text-decoration:none; }
.brand-mark { color:var(--accent); font-size:1.1rem; }
.brand-text { font-weight:700; }

.search { position:relative; flex:1; max-width:440px; margin:0 auto; }
.search input {
  width:100%; font-family:var(--sans); font-size:.9rem; color:var(--ink);
  background:var(--paper-2); border:1px solid var(--rule-strong); border-radius:8px;
  padding:.5rem .8rem; outline:none;
}
.search input:focus { border-color:var(--accent-soft);
  box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent); }
.search-results {
  position:absolute; top:calc(100% + 8px); left:0; right:0; max-height:min(70vh,520px);
  overflow:auto; background:var(--paper); border:1px solid var(--rule-strong);
  border-radius:10px; box-shadow:var(--shadow); padding:6px; z-index:70;
}
.search-results .sr {
  display:block; padding:.55rem .7rem; border-radius:7px; color:var(--ink);
}
.search-results .sr:hover, .search-results .sr.sel { background:var(--paper-2); text-decoration:none; }
.search-results .sr-title { font-weight:600; font-size:.95rem; }
.search-results .sr-snip { font-size:.82rem; color:var(--muted); font-family:var(--sans);
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.search-results .sr-empty { padding:.7rem; color:var(--muted); font-family:var(--sans); font-size:.85rem; }
.search-results mark { background:var(--mark); color:inherit; padding:0 1px; border-radius:2px; }

.controls { display:flex; align-items:center; gap:10px; }
.lang-toggle { display:flex; align-items:center; font-family:var(--mono); font-size:.74rem;
  border:1px solid var(--rule-strong); border-radius:7px; overflow:hidden; }
.lang-toggle .lang { padding:.34rem .5rem; color:var(--muted); }
.lang-toggle .lang:hover { background:var(--paper-2); text-decoration:none; }
.lang-toggle .lang.on { background:var(--accent); color:#fff; }

.icon-btn { display:inline-flex; align-items:center; justify-content:center;
  width:34px; height:34px; border:1px solid var(--rule-strong); border-radius:8px;
  background:var(--paper-2); color:var(--ink); cursor:pointer; font-size:1rem; }
.icon-btn:hover { border-color:var(--accent-soft); }
.theme-moon { display:none; } :root[data-theme="dark"] .theme-sun { display:none; }
:root[data-theme="dark"] .theme-moon { display:inline; }
.nav-toggle { display:none; }

/* ---- Layout -------------------------------------------------------------- */
.layout { display:grid; grid-template-columns:272px minmax(0,1fr) 250px; align-items:start; }
.sidebar, .toc { position:sticky; top:var(--topbar-h); align-self:start;
  height:calc(100vh - var(--topbar-h)); overflow:auto; }

/* ---- Sidebar ------------------------------------------------------------- */
.sidebar { border-right:1px solid var(--rule); padding:26px 14px 40px 22px; }
.side-home { display:block; font-family:var(--sans); font-size:.8rem; font-weight:600;
  color:var(--muted); padding:.3rem .4rem; border-radius:6px; }
.side-home.active, .side-home:hover { color:var(--ink); background:var(--paper-2); text-decoration:none; }
.side-label { font-family:var(--mono); font-size:.66rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--muted); margin:18px 0 8px .4rem; }
.side-list { list-style:none; margin:0; padding:0; }
.side-list li { margin:1px 0; }
.side-list a { display:grid; grid-template-columns:1.7rem 1fr; gap:6px; align-items:baseline;
  padding:.38rem .45rem; border-radius:7px; color:var(--ink-soft); line-height:1.32; }
.side-list a:hover { background:var(--paper-2); text-decoration:none; }
.side-list a.active { background:color-mix(in srgb, var(--accent) 12%, transparent); color:var(--ink); }
.side-list a.active .side-num { color:var(--accent); }
.side-num { font-family:var(--mono); font-size:.72rem; color:var(--muted); }
.side-title { font-family:var(--sans); font-size:.83rem; }

/* ---- TOC ----------------------------------------------------------------- */
.toc { padding:34px 22px 40px 18px; }
.toc-label { font-family:var(--mono); font-size:.66rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--muted); margin-bottom:10px; }
.toc-list { list-style:none; margin:0; padding:0; border-left:2px solid var(--rule); }
.toc-list li { margin:0; }
.toc-list a { display:block; font-family:var(--sans); font-size:.8rem; color:var(--muted);
  padding:.22rem .8rem; margin-left:-2px; border-left:2px solid transparent; line-height:1.4; }
.toc-list a:hover { color:var(--ink); text-decoration:none; }
.toc-list a.active { color:var(--accent); border-left-color:var(--accent); font-weight:600; }
.toc-l3 a { padding-left:1.5rem; font-size:.76rem; }

/* ---- Content ------------------------------------------------------------- */
.content { min-width:0; padding:0 clamp(20px,5vw,64px); }
.doc, .home { max-width:var(--measure); margin:0 auto; padding:44px 0 90px; }

.doc-kicker, .home-eyebrow { font-family:var(--mono); font-size:.72rem; letter-spacing:.12em;
  text-transform:uppercase; color:var(--accent); margin:0 0 .7rem; }
.doc-title { font-family:var(--display); font-weight:900; font-size:clamp(2rem,4.6vw,2.9rem);
  line-height:1.08; letter-spacing:-.015em; margin:0 0 .3rem; }
.doc-head { border-bottom:1px solid var(--rule); padding-bottom:1.4rem; margin-bottom:1.9rem; }

/* headings inside body */
.doc-body h2 { font-family:var(--display); font-weight:600; font-size:1.62rem; line-height:1.2;
  letter-spacing:-.01em; margin:2.6em 0 .7em; padding-top:.7em; border-top:1px solid var(--rule); }
.doc-body h2:first-child { border-top:none; padding-top:0; margin-top:.3em; }
.doc-body h3 { font-family:var(--display); font-weight:600; font-size:1.2rem; margin:2em 0 .5em; }
.doc-body p { margin:0 0 1.15em; }
.doc-body ul, .doc-body ol { margin:0 0 1.2em; padding-left:1.4em; }
.doc-body li { margin:.32em 0; }
.doc-body li::marker { color:var(--muted); }
.doc-body strong { font-weight:700; }
.doc-body hr { border:none; border-top:1px solid var(--rule); margin:2.4em 0; }

/* header anchor links from anchors_plugin */
.doc-body .header-anchor { color:var(--muted); opacity:0; margin-left:.4em; font-weight:400;
  font-family:var(--sans); text-decoration:none; }
.doc-body :hover > .header-anchor { opacity:.5; }
.doc-body .header-anchor:hover { opacity:1; color:var(--accent); }

/* inline code */
.doc-body :not(pre) > code { font-family:var(--mono); font-size:.86em;
  background:var(--code-bg); border:1px solid var(--code-border); border-radius:4px;
  padding:.08em .35em; }

/* code blocks */
pre.code { position:relative; font-family:var(--mono); font-size:.82rem; line-height:1.6;
  background:var(--code-bg); border:1px solid var(--code-border); border-radius:10px;
  padding:1rem 1.1rem; margin:1.4em 0; overflow-x:auto; }
pre.code code { font-family:inherit; background:none; border:none; padding:0; }
pre.code::before { content:attr(data-lang); position:absolute; top:0; right:0;
  font-family:var(--mono); font-size:.62rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--muted); background:var(--paper-2); border-left:1px solid var(--code-border);
  border-bottom:1px solid var(--code-border); border-radius:0 10px 0 8px; padding:.2rem .5rem; }
.copy-btn { position:absolute; top:6px; right:8px; font-family:var(--sans); font-size:.68rem;
  padding:.2rem .5rem; border:1px solid var(--rule-strong); border-radius:6px; cursor:pointer;
  background:var(--paper); color:var(--muted); opacity:0; transition:opacity .12s; z-index:2; }
pre.code:hover .copy-btn { opacity:1; }
.copy-btn.done { color:#fff; background:var(--accent); border-color:var(--accent); }

/* blockquotes — cited sources, treated as pull quotes */
.doc-body blockquote { margin:1.6em 0; padding:.2em 0 .2em 1.3em;
  border-left:3px solid var(--accent); color:var(--ink-soft);
  font-family:var(--display); font-style:italic; font-size:1.06rem; line-height:1.6; }
.doc-body blockquote p { margin:0 0 .5em; }
.doc-body blockquote a { font-style:normal; font-family:var(--serif); }
.ext-ref { color:var(--ink); border-bottom:1px dotted var(--rule-strong); }

/* tables */
.table-wrap { overflow-x:auto; margin:1.5em 0; border:1px solid var(--rule);
  border-radius:10px; box-shadow:var(--shadow); }
.doc-body table { border-collapse:collapse; width:100%; font-family:var(--sans); font-size:.83rem; }
.doc-body th, .doc-body td { text-align:left; padding:.5rem .8rem; border-bottom:1px solid var(--rule);
  vertical-align:top; }
.doc-body thead th { position:sticky; top:0; background:var(--paper-2); color:var(--ink);
  font-weight:600; font-size:.74rem; letter-spacing:.02em; z-index:1;
  border-bottom:1px solid var(--rule-strong); }
.doc-body tbody tr:nth-child(even) { background:color-mix(in srgb, var(--paper-2) 55%, transparent); }
.doc-body tbody tr:last-child td { border-bottom:none; }
.doc-body td code { white-space:nowrap; }

/* figures */
figure.fig { margin:2em 0; padding:1.1rem 1.1rem .8rem; background:var(--paper-2);
  border:1px solid var(--rule); border-radius:12px; }
figure.fig .fig-title { font-family:var(--sans); font-weight:600; font-size:.9rem; margin-bottom:.2rem; }
figure.fig .fig-sub { font-family:var(--sans); font-size:.76rem; color:var(--muted); margin-bottom:.9rem; }
figure.fig figcaption { font-family:var(--sans); font-size:.74rem; color:var(--muted);
  margin-top:.7rem; line-height:1.5; }
figure.fig svg { max-width:100%; height:auto; display:block; }

/* doc nav + footer */
.doc-nav { display:grid; grid-template-columns:1fr 1fr; gap:14px; margin:3.5em 0 0;
  padding-top:1.6em; border-top:1px solid var(--rule); }
.doc-nav a { display:flex; flex-direction:column; gap:.2rem; padding:.9rem 1.1rem;
  border:1px solid var(--rule); border-radius:10px; color:var(--ink); }
.doc-nav a:hover { border-color:var(--accent-soft); text-decoration:none; background:var(--paper-2); }
.doc-nav-next { text-align:right; }
.doc-nav-dir { font-family:var(--mono); font-size:.7rem; letter-spacing:.08em; color:var(--accent); text-transform:uppercase; }
.doc-nav-title { font-family:var(--sans); font-size:.9rem; }
.doc-foot { margin-top:2.6em; font-family:var(--sans); font-size:.76rem; color:var(--muted); }

/* ---- Home ---------------------------------------------------------------- */
.home-hero { padding:26px 0 8px; }
.home-title { font-family:var(--display); font-weight:900; font-size:clamp(2.6rem,7vw,4.6rem);
  line-height:.98; letter-spacing:-.02em; margin:.1em 0 .25em; }
.home-subtitle { font-family:var(--display); font-style:italic; font-weight:400;
  font-size:clamp(1.1rem,2.4vw,1.4rem); color:var(--ink-soft); margin:0; max-width:34ch; }
.home-lede { font-size:1.14rem; line-height:1.7; margin:1.8em 0 0; }
.home-lede::first-letter { font-family:var(--display); font-weight:900; float:left; font-size:3.6rem;
  line-height:.78; padding:.06em .12em 0 0; color:var(--accent); }
.home-section { font-family:var(--display); font-weight:600; font-size:1.35rem;
  margin:2.4em 0 1em; padding-top:.8em; border-top:1px solid var(--rule); }
.home-about { color:var(--ink-soft); }

.cards { list-style:none; margin:0; padding:0; display:grid; gap:10px; }
.card a { display:grid; grid-template-columns:2.6rem 1fr; gap:2px 14px; align-items:start;
  padding:1rem 1.1rem; border:1px solid var(--rule); border-radius:12px; color:var(--ink); }
.card a:hover { border-color:var(--accent-soft); background:var(--paper-2); text-decoration:none;
  transform:translateY(-1px); box-shadow:var(--shadow); transition:transform .12s, box-shadow .12s; }
.card-num { grid-row:1/3; font-family:var(--display); font-weight:900; font-size:1.5rem; color:var(--accent);
  line-height:1; }
.card-title { font-family:var(--serif); font-weight:700; font-size:1.02rem; }
.card-blurb { font-family:var(--sans); font-size:.82rem; color:var(--muted); line-height:1.5; }

/* ---- Responsive ---------------------------------------------------------- */
@media (max-width:1140px){
  .layout { grid-template-columns:250px minmax(0,1fr); }
  .toc { display:none; }
}
@media (max-width:860px){
  body { font-size:17px; }
  .layout { grid-template-columns:1fr; }
  .nav-toggle { display:inline-flex; }
  .search { max-width:none; }
  .brand-text { display:none; }
  .sidebar { position:fixed; top:var(--topbar-h); left:0; width:280px; max-width:84vw;
    background:var(--paper); z-index:45; transform:translateX(-102%); transition:transform .2s;
    border-right:1px solid var(--rule-strong); box-shadow:var(--shadow); }
  .sidebar.open { transform:translateX(0); }
  .nav-scrim { position:fixed; inset:var(--topbar-h) 0 0 0; background:rgba(0,0,0,.35); z-index:44; }
  .doc, .home { padding-top:30px; }
}
@media (max-width:520px){
  .doc-nav { grid-template-columns:1fr; }
  .search input::placeholder { color:transparent; }
}