/* ---------- Fuentes auto-alojadas ---------- */
@font-face{
  font-family:"Archivo";
  font-style:normal;
  font-weight:100 900;
  font-display:swap;
  src:url("../fonts/archivo-variable.woff2") format("woff2");
}
@font-face{
  font-family:"IBM Plex Mono";
  font-style:normal;
  font-weight:400;
  font-display:swap;
  src:url("../fonts/ibm-plex-mono-400.woff2") format("woff2");
}
@font-face{
  font-family:"IBM Plex Mono";
  font-style:normal;
  font-weight:500;
  font-display:swap;
  src:url("../fonts/ibm-plex-mono-500.woff2") format("woff2");
}

/* ---------- Custom properties de color ---------- */
:root{
  --bg:#f3f2f2;
  --surface:#eae9e9;
  --ink:#201e1d;
  --muted:#605d5d;
  --line:rgba(32,30,29,.4);
  --hair:rgba(32,30,29,.16);
  --accent:#ec3013;
  --accent-deep:#ae1800;
  --code-bg:#eae9e9;
}
html[data-theme="dark"]{
  --bg:#1a1918;
  --surface:#232120;
  --ink:#f3f2f2;
  --muted:#a5a1a1;
  --line:rgba(243,242,242,.34);
  --hair:rgba(243,242,242,.14);
  --accent:#ff563c;
  --accent-deep:#ff9783;
  --code-bg:#232120;
}

/* ---------- Reset y tipografía base ---------- */
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Archivo",system-ui,sans-serif;font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:"Archivo",system-ui,sans-serif;font-weight:800;letter-spacing:-.02em;line-height:1.08;margin:0}
p{margin:0}
a{color:var(--accent-deep);text-decoration:none;border-bottom:1px solid var(--hair)}
a:hover{color:var(--accent);border-bottom-color:var(--accent)}
button{font-family:inherit}
::selection{background:var(--accent);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- Reglas de idioma / tema / ruta ---------- */
html[data-lang="en"] [data-l="es"]{display:none}
html:not([data-theme="dark"]) [data-icon="moon"]{display:none}
html[data-theme="dark"] [data-icon="sun"]{display:none}
html:not([data-lang="en"]) [data-l="en"]{display:none}
html:not([data-route]) [data-nav="home"],
html[data-route="home"] [data-nav="home"],
html[data-route="post"] [data-nav="home"],
html[data-route="about"] [data-nav="about"]{
  text-decoration:underline;
  text-decoration-thickness:2px;
  text-underline-offset:5px;
  text-decoration-color:var(--accent);
}
[data-screen]{display:none}
html:not([data-route]) [data-screen="home"],
html[data-route="home"] [data-screen="home"],
html[data-route="post"] [data-screen="post"],
html[data-route="about"] [data-screen="about"]{display:block}

/* ---------- Responsive ---------- */
@media (max-width:820px){
  [data-r="page"]{padding-left:18px!important;padding-right:18px!important}
  [data-r="head"]{grid-template-columns:1fr!important;align-items:start!important;gap:14px!important}
  [data-r="head"] nav{flex-wrap:wrap;gap:14px 18px!important}
  [data-r="cols"],[data-r="search"],[data-r="banner"],[data-r="three"],[data-r="pair"],[data-r="doc"]{grid-template-columns:minmax(0,1fr)!important}
  [data-r="doc"]>article,[data-r="card"]>div{min-width:0}
  [data-r="cols"],[data-r="doc"]{gap:26px!important}
  [data-r="search"]{gap:16px!important}
  [data-r="doc"]{padding-top:28px!important}
  [data-r="doc"]>aside{position:static!important;top:auto!important}
  [data-r="card"]{grid-template-columns:1fr!important;gap:14px!important;padding:26px 0!important}
  [data-r="card"]>div:first-child{flex-direction:row!important;flex-wrap:wrap;gap:14px!important}
  [data-r="card"] h2{font-size:27px!important}
  [data-r="three"]>div{border-right:0!important;border-bottom:2px solid var(--line)}
  [data-r="three"]>div:last-child{border-bottom:0!important}
  [data-r="banner"]{padding:36px 20px!important;margin-top:40px!important;gap:24px!important;align-items:start!important}
  [data-r="banner"] p{white-space:normal!important;font-size:clamp(24px,6.4vw,34px)!important}
  [data-r="pair"]>a:last-child{text-align:left!important}
  [data-tagbar] button{padding:9px 12px!important}
  [data-screen="post"] table{font-size:13px!important;display:block;overflow-x:auto;white-space:nowrap}
  [data-screen="post"] pre{max-width:100%}
  [data-screen="post"] th,[data-screen="post"] td{padding-left:8px!important;padding-right:8px!important}
  [data-screen="post"] pre{font-size:11.5px!important}
  [data-screen="post"] h1{font-size:clamp(30px,8vw,42px)!important}
  [data-screen="post"] h2{font-size:25px!important}
  [data-screen="post"] article{gap:24px!important}
  footer{font-size:10px!important;flex-direction:column}
}
@media (max-width:520px){
  [data-r="head"] nav{font-size:13px!important;gap:12px 14px!important}
  [data-r="head"] nav .nav-sep{display:none}
  .post-table--stacked{display:block!important;overflow:visible!important;white-space:normal!important}
  .post-table--stacked thead{display:none}
  .post-table--stacked tbody,.post-table--stacked tr,.post-table--stacked td{display:block}
  .post-table--stacked tr{padding:10px 0;border-bottom:2px solid var(--line)}
  .post-table--stacked td{position:relative;min-height:30px;padding:4px 0 4px 42%!important;border:0!important}
  .post-table--stacked td::before{content:attr(data-label-es);position:absolute;left:0;width:38%;font-family:"IBM Plex Mono",monospace;font-size:9px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
  html[data-lang="en"] .post-table--stacked td::before{content:attr(data-label-en)}
}

/* ---------- Layout general ---------- */
.page{max-width:1180px;margin:0 auto;padding:0 32px 96px}

/* ---------- Header ---------- */
.site-header{display:grid;grid-template-columns:1fr auto;align-items:end;gap:24px;padding:28px 0 18px;border-bottom:2px solid var(--line)}
.brand{display:flex;flex-direction:column;gap:2px}
.brand-link{font-weight:800;font-size:21px;letter-spacing:-.02em;color:var(--ink);border:0;text-transform:uppercase}
.brand-tagline{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.site-nav{display:flex;align-items:center;gap:22px;font-size:14px}
.nav-link{color:var(--ink);border-bottom:2px solid transparent}
.nav-link:hover{border-bottom-color:var(--accent);color:var(--accent)}
.nav-sep{width:1px;height:20px;background:var(--line)}
.lang-switch{display:flex;align-items:center;gap:6px;font-size:11px;font-family:"IBM Plex Mono",monospace;letter-spacing:.1em}
.lang-switch-sep{color:var(--muted)}
.lang-btn{background:none;border:0;padding:5px 0;color:var(--muted);font:inherit;letter-spacing:inherit;cursor:pointer}
.lang-btn:hover{color:var(--accent)}
html[data-lang="es"] .lang-btn[data-set-lang="es"],
html[data-lang="en"] .lang-btn[data-set-lang="en"]{color:var(--accent)}
.theme-toggle{display:flex;align-items:center;justify-content:center;width:30px;height:30px;background:none;border:0;color:var(--ink);padding:0;cursor:pointer}
.theme-toggle:hover{color:var(--accent)}

/* ---------- Home ---------- */
.hero{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;padding:56px 0 44px}
.hero-title{font-size:clamp(38px,5.2vw,68px)}
.hero-copy{display:flex;flex-direction:column;gap:18px;align-self:end}
.hero-lede{color:var(--muted);text-wrap:pretty}
.hero-meta{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.06em;color:var(--muted)}

.search-bar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;padding:18px 0 26px}
.search-input{width:100%;background:transparent;border:0;border-bottom:2px solid var(--hair);color:var(--ink);font-family:"IBM Plex Mono",monospace;font-size:13px;letter-spacing:.04em;padding:8px 0;outline:none}
.search-input:focus{border-bottom-color:var(--accent)}

.tag-bar{display:flex;flex-wrap:wrap;gap:8px}
.tag-btn{background:none;color:var(--ink);border:2px solid var(--hair);padding:5px 11px;font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;cursor:pointer}
.tag-btn:hover{border-color:var(--accent);color:var(--accent)}
.tag-btn.is-active{background:var(--ink);color:var(--bg);border-color:var(--ink)}

.post-list{display:flex;flex-direction:column}
.post-card{display:grid;grid-template-columns:170px minmax(0,1fr);gap:40px;padding:34px 0;border-bottom:2px solid var(--line)}
.post-card:last-of-type{border-bottom:0}
.post-card-meta{display:flex;flex-direction:column;gap:7px;font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.post-card-content{display:flex;flex-direction:column;gap:14px}
.post-card-content h2{font-size:clamp(27px,3.4vw,42px);line-height:1.12}
.post-card-content h2 a{color:var(--ink);border:0}
.post-card-content h2 a:hover{color:var(--accent)}
.post-card-image{display:block;width:100%;height:auto;border:2px solid var(--line)}
.post-card-content>p{width:100%;color:var(--muted)}
.post-card-readmore{align-self:flex-start;font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-deep);border-bottom:1px solid var(--hair)}
.post-card-readmore:hover{color:var(--accent);border-bottom-color:var(--accent)}
.post-card-tags{display:flex;flex-wrap:wrap;gap:8px}
.post-card-tags>span{border:1px solid var(--hair);padding:4px 8px;font-family:"IBM Plex Mono",monospace;font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.empty-state{padding:40px 0;border-bottom:2px solid var(--line);font-family:"IBM Plex Mono",monospace;font-size:13px;color:var(--muted)}

/* ---------- Post ---------- */
.post-back{padding:28px 0 0}
.back-link{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);border:0}
.back-link:hover{color:var(--accent)}

.post-header{padding:24px 0 28px;border-bottom:2px solid var(--line)}
.post-kicker{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.post-title{font-size:clamp(36px,5vw,62px);max-width:22ch}
.post-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:26px;font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.post-actions{display:flex;margin-top:20px}
.post-share{display:inline-flex;align-items:center;gap:8px;min-height:44px;background:transparent;color:var(--ink);border:2px solid var(--line);padding:8px 12px;font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.1em;text-transform:uppercase;cursor:pointer}
.post-share:hover{border-color:var(--accent);color:var(--accent)}

.post-doc{display:grid;grid-template-columns:200px minmax(0,1fr);gap:56px;padding-top:44px}
.post-toc{position:sticky;top:32px;align-self:start;display:flex;flex-direction:column;gap:10px;font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.08em}
.post-toc-label{text-transform:uppercase;color:var(--muted);padding-bottom:10px;border-bottom:2px solid var(--line)}
.post-toc a{color:var(--ink);border:0;transition:color .15s ease}
.post-toc a:hover{color:var(--accent)}
.post-toc a.is-active{color:var(--accent)}

.post-body{max-width:70ch;display:flex;flex-direction:column;gap:30px}
.post-intro{font-size:23px;line-height:1.5;text-wrap:pretty}
.post-body p{text-wrap:pretty}
.post-hero{margin:0;display:flex;flex-direction:column;align-items:center;gap:10px}
.post-hero img{display:block;max-width:100%;height:auto}
.post-hero figcaption{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--muted);text-align:center}
.post-body h2{font-size:30px;padding-top:14px;border-top:2px solid var(--line)}
.post-bullets{margin:0;padding-left:1.35em;display:flex;flex-direction:column;gap:14px}
.post-bullets li::marker{color:var(--accent)}

.post-figure{margin:0;display:flex;flex-direction:column;gap:10px}
.post-figure-placeholder{aspect-ratio:16/9;background-image:repeating-linear-gradient(135deg,var(--hair) 0 1px,transparent 1px 9px);border:2px solid var(--line);display:flex;align-items:flex-end;padding:16px}
.post-figure-placeholder span{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);background:var(--bg);padding:4px 8px}
.post-figure figcaption{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--muted)}

.post-video{margin:0;display:flex;flex-direction:column;gap:10px}
.post-video-frame{position:relative;aspect-ratio:16/9;border:2px solid var(--line);background:var(--code-bg)}
.post-video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
.post-video figcaption{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--muted)}

.post-three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:2px solid var(--line)}
.post-three-col{padding:20px;border-right:2px solid var(--line);display:flex;flex-direction:column;gap:8px}
.post-three-col:last-child{border-right:0}
.post-three-col strong{font-weight:600}
.post-three-col p{font-size:14px;color:var(--muted)}
.post-three-kicker{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}

.code-block{position:relative;border:2px solid var(--line);background:var(--code-bg)}
.code-block-header{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;border-bottom:2px solid var(--line)}
.code-block-filename{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.code-copy-btn{background:none;border:2px solid var(--hair);color:var(--ink);padding:3px 9px;font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.1em;text-transform:uppercase;cursor:pointer}
.code-copy-btn:hover{border-color:var(--accent);color:var(--accent)}
.code-block-pre{margin:0;padding:18px 14px;overflow-x:auto;font-family:"IBM Plex Mono",monospace;font-size:13px;line-height:1.7}

.post-table{width:100%;border-collapse:collapse;font-size:15px}
.post-table th{text-align:left;padding:10px 12px;border-bottom:2px solid var(--line);font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.post-table td{padding:12px;border-bottom:1px solid var(--hair)}

.post-callout{border-left:4px solid var(--accent);padding:4px 0 4px 20px;display:flex;flex-direction:column;gap:10px}
.post-callout-label{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}

.post-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;border-top:2px solid var(--line);padding-top:24px;margin-top:24px}
.post-pair-link{display:flex;flex-direction:column;gap:6px;color:var(--ink);border:0}
.post-pair-link:hover{color:var(--accent)}
.post-pair-link--next{text-align:right}
.post-pair--single{grid-template-columns:minmax(0,1fr)}
.post-pair-kicker{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.post-pair-link strong{font-size:20px;font-weight:800;letter-spacing:-.01em}

/* ---------- About ---------- */
.about-hero{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;padding:36px 0 44px;border-bottom:2px solid var(--line)}
.about-hero-text{display:flex;flex-direction:column;gap:26px}
.about-hero-text h1{font-size:clamp(36px,4.6vw,58px)}
.about-lede{font-size:20px;line-height:1.55;text-wrap:pretty;max-width:56ch}
.about-muted{color:var(--muted);text-wrap:pretty;max-width:60ch}
.about-portrait{display:flex;flex-direction:column;gap:10px}
.about-portrait-img{width:100%;aspect-ratio:4/5;object-fit:cover;border:2px solid var(--line);filter:grayscale(1) contrast(1.08)}

.about-section{display:grid;grid-template-columns:200px minmax(0,1fr);gap:56px;padding:44px 0;border-bottom:2px solid var(--line)}
.about-section:last-child{border-bottom:0}
.about-section-label{font-size:13px;font-family:"IBM Plex Mono",monospace;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:2px;background:var(--line)}
.tool-card{background:var(--bg);padding:18px;display:flex;flex-direction:column;gap:6px}
.tool-card strong{font-weight:600}
.tool-card span{font-size:14px;color:var(--muted)}

.contact-links{display:flex;flex-wrap:wrap;gap:28px;font-size:18px}

/* ---------- Footer ---------- */
.site-footer{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:20px 32px;border-top:2px solid var(--line);padding-top:20px;margin-top:56px;font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.rss-subscription{display:flex;max-width:620px;flex-direction:column;align-items:flex-end;gap:5px}
.rss-copy-actions{display:flex;align-items:center;gap:9px}
.rss-copy-btn{appearance:none;min-height:24px;background:none;border:0;border-bottom:1px solid var(--hair);padding:2px 0;color:var(--accent-deep);font:inherit;letter-spacing:inherit;text-transform:inherit;cursor:pointer}
.rss-copy-btn:hover{color:var(--accent);border-bottom-color:var(--accent)}
.rss-help,.rss-copy-status{text-align:right;text-transform:none;letter-spacing:.02em;line-height:1.45}
.rss-help{color:var(--muted)}
.rss-copy-status{min-height:1.45em;color:var(--accent-deep)}

@media (max-width:820px){
  .rss-subscription{max-width:100%;align-items:flex-start}
  .rss-copy-btn{min-height:36px;padding:6px 0}
  .rss-help,.rss-copy-status{text-align:left}
}