:root{--bg:#faf8f3;--card:#fffefb;--soft:#f1ede3;--ink:#1d1d1f;--ink-2:#3a3a3e;--muted:#6b6a66;--line:#e4dfd3;--line-strong:#1d1d1f;
--accent:#c0392b;--accent-ink:#a5301f;--link:#1d1d1f;--head:'Fraunces',Georgia,serif;--body:'Source Serif 4',Georgia,serif;--mono:'IBM Plex Mono',ui-monospace,monospace;--head-w:600;
--radius:6px;--radius-btn:999px;--btn-bg:#1d1d1f;--btn-ink:#faf8f3;--foot-bg:#161616;--quote:'Fraunces',Georgia,serif}
body{font-size:1.1rem}
.brand{font-family:'Fraunces',serif;font-weight:600;font-size:1.3rem;letter-spacing:-.02em}
.nav a,.btn,.eyebrow,.post-card .cat,.post-meta,.crumbs{font-family:'IBM Plex Mono',monospace;font-size:.86rem}
.eyebrow{color:var(--accent-ink)}
.hero{padding:clamp(56px,8vw,110px) 0}
.hero .wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}
.hero h1{font-size:clamp(2.4rem,5.6vw,4.4rem);line-height:1.02;font-weight:600;letter-spacing:-.03em}
.hero h1 em{color:var(--accent);font-style:italic;font-weight:400}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr}}
.paper{background:#fffefb;border:1px solid var(--line);border-radius:6px;padding:26px 26px 20px;font-family:'IBM Plex Mono',monospace;font-size:.92rem;line-height:1.7;box-shadow:0 1px 0 var(--line),0 24px 48px -30px rgba(0,0,0,.35);position:relative}
.paper::before{content:"";position:absolute;left:56px;top:0;bottom:0;border-left:1px solid #f0c9c2}
.paper p{margin:0 0 .55em;padding-left:44px;position:relative;opacity:0;animation:line .5s ease forwards}
.paper p b{position:absolute;left:0;color:var(--accent)}
.paper{margin:0;font-size:.86rem;max-height:none}.paper .ctx{font-family:var(--body);font-size:.92rem;color:var(--muted);padding:0 0 .9em 44px;margin-bottom:.6em;border-bottom:1px dashed var(--line);line-height:1.5}.paper p.ex{color:var(--muted);font-style:italic;font-size:.82rem}
.paper .hl{background:linear-gradient(transparent 55%,rgba(192,57,43,.22) 55%)}
.paper .tag{display:block;margin-top:.8em;padding-left:44px;color:var(--muted);font-size:.8rem}
@keyframes line{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.paper p{opacity:1}}
.start{display:grid;grid-template-columns:1fr 1fr;gap:22px}
@media (max-width:760px){.start{grid-template-columns:1fr}}
.start .post-card{padding:30px}
.start .post-card h3{font-size:1.5rem}
.post-card h3{font-family:'Fraunces',serif;font-weight:600}
.techs{counter-reset:t}
.techs .post-card h3::before{counter-increment:t;content:counter(t,decimal-leading-zero) " ";color:var(--accent);font-family:'IBM Plex Mono',monospace;font-size:.85rem;font-weight:400;display:block;margin-bottom:.3em}
.prose h2,.prose h3{font-family:'Fraunces',serif}
.prose .transcript{background:#fffefb}
.realcase{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(24px,4vw,56px);align-items:start;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:clamp(22px,4vw,44px)}
.rc-side h2{font-size:clamp(1.7rem,3vw,2.4rem)}
.rc-side p{font-size:1rem}
.transcript{font-family:var(--mono);font-size:.9rem;line-height:1.6;border-left:2px solid #f0c9c2;padding-left:18px}
.transcript p{margin:.35em 0}
.transcript b{color:var(--accent);display:inline-block;min-width:1.8em}
.transcript .ex{color:var(--muted);font-style:italic;font-size:.84rem}
.paper .tag a{color:var(--accent)}
@media (max-width:900px){.realcase{grid-template-columns:1fr}}
.humble{border-left:3px solid var(--accent);padding-left:22px}
.author{display:flex;gap:18px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.author img{width:48px;height:48px;flex:none}
/* base común: cada sitio define sus variables en :root */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:1.0625rem;line-height:1.65;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--link);text-underline-offset:.18em;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
h1,h2,h3,h4{font-family:var(--head);line-height:1.15;margin:0 0 .6em;color:var(--ink);font-weight:var(--head-w,650);letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,5.2vw,3.6rem)}
h2{font-size:clamp(1.55rem,3.2vw,2.25rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
li{margin:.25em 0}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--bg);padding:.6em 1em;z-index:99}
.skip:focus{left:10px;top:10px}
.muted{color:var(--muted)}
.eyebrow{font-family:var(--body);font-size:.9rem;font-weight:600;color:var(--accent-ink,var(--accent));margin:0 0 .9em;letter-spacing:.01em}
.lead{font-size:clamp(1.1rem,1.7vw,1.3rem);color:var(--ink-2,var(--ink));max-width:42em}
section{padding:clamp(56px,8vw,104px) 0}
.sec-head{max-width:46em;margin-bottom:2.4rem}

/* encabezado */
.site-header{position:sticky;top:0;z-index:20;background:var(--header-bg,var(--bg));border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;color:var(--header-ink,var(--ink));font-family:var(--brand-font,var(--head));font-weight:650;font-size:1.12rem;letter-spacing:-.01em}
.brand img{width:36px;height:36px}
.brand small{display:block;font-family:var(--body);font-weight:400;font-size:.78rem;color:var(--header-muted,var(--muted));letter-spacing:0}
.nav{display:flex;align-items:center;gap:1.4rem}
.nav a{color:var(--header-ink,var(--ink));text-decoration:none;font-size:.95rem}
.nav a:hover{text-decoration:underline}
.nav .btn{padding:.55em 1em;font-size:.92rem}
.menu-toggle{display:none;background:none;border:1px solid var(--line);color:var(--header-ink,var(--ink));border-radius:8px;padding:.45em .7em;font:inherit;font-size:.9rem;cursor:pointer}
@media (max-width:860px){
 .menu-toggle{display:block}
 .nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:flex-start;gap:0;background:var(--header-bg,var(--bg));border-bottom:1px solid var(--line);padding:8px 20px 18px}
 .nav.open{display:flex}
 .nav a{padding:.65em 0;width:100%;border-bottom:1px solid var(--line)}
 .nav .btn{margin-top:12px;width:auto;border-bottom:0}
}

/* botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;padding:.85em 1.4em;border-radius:var(--radius-btn,6px);background:var(--btn-bg,var(--ink));color:var(--btn-ink,var(--bg))!important;text-decoration:none!important;font-weight:600;font-family:var(--body);border:1px solid var(--btn-bg,var(--ink));cursor:pointer;font-size:1rem;line-height:1.2;transition:transform .15s ease,background .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--btn-ghost-ink,var(--ink))!important;border-color:var(--btn-ghost-line,var(--line-strong,var(--ink)))}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:1.6rem}

/* grillas */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:980px){.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:var(--card,#fff);border:1px solid var(--line);border-radius:var(--radius,10px);padding:26px}
.card h3{margin-bottom:.45em}
.card p:last-child{margin-bottom:0}

/* tabla */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius,10px);background:var(--card,#fff)}
table{width:100%;border-collapse:collapse;font-size:.98rem}
th,td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-family:var(--body);font-weight:600;font-size:.88rem;color:var(--muted);background:var(--soft)}
tr:last-child td{border-bottom:0}

/* preguntas frecuentes */
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{cursor:pointer;font-weight:600;font-family:var(--head);font-size:1.12rem;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--body);font-weight:400;color:var(--accent);font-size:1.4rem;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:.8em 0 0;color:var(--ink-2,var(--ink))}

/* pie */
.site-footer{background:var(--foot-bg,var(--ink));color:var(--foot-ink,#d9dde4);padding:56px 0 34px;font-size:.95rem}
.site-footer a{color:inherit}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}
.site-footer h4{color:var(--foot-head,#fff);font-family:var(--body);font-size:.95rem;font-weight:600;margin-bottom:.8em}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer .legal{margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);font-size:.85rem;opacity:.8}
.site-footer .brand{color:var(--foot-head,#fff)}
.site-footer .brand small{color:inherit;opacity:.7}
@media (max-width:760px){.site-footer .cols{grid-template-columns:1fr}}

/* artículos de blog */
.post-hero{padding:clamp(48px,7vw,88px) 0 28px}
.post-meta{display:flex;flex-wrap:wrap;gap:.4em 1.2em;color:var(--muted);font-size:.92rem;margin-top:1rem}
.crumbs{font-size:.9rem;color:var(--muted);margin-bottom:1.2rem}
.crumbs a{color:var(--muted)}
.prose{font-size:1.09rem;line-height:1.75;padding-bottom:72px}
.prose h2{margin-top:2em;font-size:clamp(1.4rem,2.6vw,1.85rem)}
.prose h3{margin-top:1.6em}
.prose blockquote{margin:1.6em 0;padding:.4em 0 .4em 1.3em;border-left:3px solid var(--accent);font-family:var(--quote,var(--head));font-size:1.15rem;color:var(--ink-2,var(--ink))}
.prose blockquote cite{display:block;font-size:.9rem;font-style:normal;color:var(--muted);margin-top:.5em;font-family:var(--body)}
.prose figure{margin:2em 0}
.prose figure img{width:100%;border:1px solid var(--line);border-radius:var(--radius,10px);background:#fff}
.prose figcaption{font-size:.9rem;color:var(--muted);margin-top:.6em}
.prose pre{background:var(--code-bg,#11161f);color:var(--code-ink,#e8ecf3);padding:18px 20px;border-radius:var(--radius,10px);overflow-x:auto;font-size:.88rem;line-height:1.6;margin:1.4em 0}
.prose code{font-family:var(--mono,ui-monospace,SFMono-Regular,Menlo,Consolas,monospace);font-size:.92em}
.prose :not(pre)>code{background:var(--soft);padding:.1em .35em;border-radius:4px}
.prose .note{background:var(--soft);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:var(--radius,10px);padding:18px 22px;margin:1.6em 0;font-size:1rem}
.prose .note p:last-child{margin-bottom:0}
.prose .compare{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:1.6em 0}
.prose .compare>div{border:1px solid var(--line);border-radius:var(--radius,10px);padding:18px 20px;background:var(--card,#fff);min-width:0}
.prose .compare h3{margin-top:0;font-size:1.05rem}
@media (max-width:720px){.prose .compare{grid-template-columns:1fr}}
.prose .transcript{font-family:var(--mono,ui-monospace,monospace);font-size:.95rem;background:var(--card,#fff);border:1px solid var(--line);border-radius:var(--radius,10px);padding:18px 22px;margin:1.6em 0;line-height:1.6}
.prose .transcript p{margin:.35em 0}
.prose .transcript b{color:var(--accent);display:inline-block;min-width:1.8em}
.prose table{margin:1.4em 0;display:block;overflow-x:auto}
.post-foot{border-top:1px solid var(--line);padding:32px 0 80px}

/* tarjetas de entradas */
.post-card{display:flex;flex-direction:column;gap:.5rem;text-decoration:none;color:inherit;background:var(--card,#fff);border:1px solid var(--line);border-radius:var(--radius,10px);padding:24px;transition:border-color .15s ease,transform .15s ease}
.post-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.post-card .cat{font-size:.82rem;font-weight:600;color:var(--accent-ink,var(--accent))}
.post-card h3{margin:0;font-size:1.18rem}
.post-card p{margin:0;color:var(--ink-2,var(--muted));font-size:.97rem}
.post-card .meta{margin-top:auto;padding-top:.6rem;font-size:.85rem;color:var(--muted)}