@font-face{font-family:'Inter';font-style:normal;font-weight:100 900;font-display:swap;src:url('/fonts/inter-var.woff2') format('woff2-variations')}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:500;font-display:swap;src:url('/fonts/jbm-500.woff2') format('woff2')}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0d1117;--bg2:#161b22;--surface:#1c2128;--surface2:#22272e;
  --border:#30363d;--border-soft:#21262d;
  --text:#e6edf3;--text-dim:#9da7b3;--text-muted:#959da6;
  --accent:#58a6ff;--accent2:#79c0ff;--accent-soft:rgba(88,166,255,.12);
  --success:#3fb950;--warning:#d29922;--danger:#f85149;
  --w:1180px;--w-prose:760px;--radius:12px;
  --shadow-sm:0 2px 8px rgba(0,0,0,.3);
  --shadow-md:0 8px 24px rgba(0,0,0,.4);
  --shadow-glow:0 0 40px rgba(88,166,255,.15);
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--text);font-family:'Inter','Inter Fallback',system-ui,-apple-system,sans-serif;font-feature-settings:'cv11','ss01','ss03';line-height:1.65;-webkit-font-smoothing:antialiased;font-size:16.5px}
.container{max-width:var(--w);margin:0 auto;padding:0 1.5rem}
img,video,picture{max-width:100%;height:auto;display:block}
img{border-radius:8px}
ul,ol{list-style:none}

.skip{position:fixed;left:-9999px;top:0;background:var(--accent);color:#000;padding:.7rem 1rem;z-index:9999;font-weight:600}
.skip:focus{left:0}

/* Reading progress */
.reading-progress{position:fixed;top:0;left:0;height:3px;width:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));z-index:1000;transform:scaleX(0);transform-origin:left;transition:transform .1s}

/* Header */
.site-header{background:rgba(13,17,23,.72);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--border-soft);position:sticky;top:0;z-index:100}
.header-inner{display:flex;justify-content:space-between;align-items:center;height:64px;gap:1rem}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;color:var(--text);font-weight:700}
.logo-img{height:32px;width:auto;display:block;filter:brightness(0) invert(1)}
.brand:hover .logo-img{filter:brightness(0) invert(1) drop-shadow(0 0 8px var(--accent))}
.nav-list{display:flex;gap:.2rem;align-items:center}
.nav-list a{color:var(--text-dim);text-decoration:none;padding:.55rem .9rem;border-radius:8px;font-size:.93rem;font-weight:500;transition:all .15s}
.nav-list a:hover{color:var(--text);background:var(--surface)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;width:38px;height:38px;flex-direction:column;gap:4px;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:all .2s}

/* Hero */
.hero{position:relative;padding:5rem 0 4rem;text-align:center;overflow:hidden;border-bottom:1px solid var(--border-soft)}
.hero-bg{position:absolute;inset:0;pointer-events:none;z-index:0;background:
  radial-gradient(circle at 20% 30%,rgba(88,166,255,.15) 0%,transparent 50%),
  radial-gradient(circle at 80% 70%,rgba(121,192,255,.1) 0%,transparent 50%);
  animation:heroPulse 12s ease-in-out infinite}
.hero-bg::before{content:'';position:absolute;inset:0;background-image:
  linear-gradient(rgba(48,54,61,.3) 1px,transparent 1px),
  linear-gradient(90deg,rgba(48,54,61,.3) 1px,transparent 1px);
  background-size:50px 50px;mask-image:radial-gradient(ellipse at center,#000 0%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse at center,#000 0%,transparent 70%)}
@keyframes heroPulse{0%,100%{opacity:1}50%{opacity:.6}}
.hero-inner{position:relative;z-index:1}
.eyebrow{color:var(--accent);font-weight:600;font-size:.78rem;letter-spacing:.25em;text-transform:uppercase;margin-bottom:1.2rem}
.hero h1{font-size:clamp(2.5rem,7vw,4.5rem);font-weight:800;letter-spacing:-.03em;line-height:1.05;margin-bottom:1.4rem;background:linear-gradient(135deg,#fff 0%,var(--accent2) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero .lead{font-size:clamp(1.05rem,2vw,1.3rem);color:var(--text-dim);max-width:680px;margin:0 auto 2rem;line-height:1.55}
.cta-row{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-bottom:2rem}
.btn{display:inline-flex;align-items:center;gap:.55rem;padding:1rem 1.9rem;border-radius:10px;font-weight:600;text-decoration:none;font-size:1rem;transition:all .2s cubic-bezier(.4,0,.2,1);border:1px solid transparent;white-space:nowrap;cursor:pointer}
.btn-primary{background:var(--accent);color:#000;box-shadow:0 4px 24px rgba(88,166,255,.35)}
.btn-primary:hover{background:var(--accent2);transform:translateY(-2px);box-shadow:0 8px 32px rgba(88,166,255,.5)}
.btn-ghost{color:var(--text);border-color:var(--border)}
.btn-ghost:hover{background:var(--surface);border-color:var(--accent);color:var(--accent2)}
.hero-meta{display:flex;gap:2.5rem;justify-content:center;flex-wrap:wrap;color:var(--text-muted);font-size:.88rem;margin-top:1.5rem}
.hero-meta span strong{color:var(--text);margin-right:.3rem;font-weight:700}

/* Intro */
.intro{max-width:760px;margin:3rem auto 1rem;color:var(--text-dim);font-size:1.05rem}
.intro p{margin-bottom:1.1rem}
.intro a{color:var(--accent2);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(121,192,255,.3)}
.intro a:hover{color:var(--accent)}
.intro strong{color:var(--text);font-weight:600}

/* Sections */
.features,.latest,.related{padding:3.5rem 0}
.features h2,.latest h2,.related h2{font-size:clamp(1.6rem,3vw,2rem);font-weight:700;text-align:center;margin-bottom:.5rem;letter-spacing:-.01em}
.section-sub{text-align:center;color:var(--text-dim);margin-bottom:2rem}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.6rem;text-decoration:none;color:var(--text);transition:all .25s cubic-bezier(.4,0,.2,1);display:block;position:relative;overflow:hidden}
.card::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,transparent 50%,var(--accent-soft));opacity:0;transition:opacity .25s}
.card:hover{border-color:var(--accent);transform:translateY(-4px);background:var(--surface2);box-shadow:var(--shadow-md)}
.card:hover::before{opacity:1}
.card-icon{font-size:1.8rem;display:block;margin-bottom:.6rem}
.card h3{margin-bottom:.4rem;font-size:1.1rem;font-weight:600;position:relative}
.card p{color:var(--text-dim);font-size:.92rem;margin:0;position:relative}

/* Post grid */
.post-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:1.4rem}
.post-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .25s}
.post-card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:var(--shadow-md)}
.post-card a{display:block;text-decoration:none;color:var(--text)}
.post-card picture,.post-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.post-card-body{padding:1.3rem}
.post-card h3{font-size:1.1rem;margin-bottom:.5rem;line-height:1.35;font-weight:600}
.post-card .meta{color:var(--text-muted);font-size:.82rem}

/* Article */
.breadcrumb{padding:1.5rem 1.5rem .8rem;color:var(--text-muted);font-size:.85rem;max-width:var(--w);margin:0 auto}
.breadcrumb a{color:var(--text-dim);text-decoration:none;transition:color .15s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--text-muted);margin:0 .3rem}
.article-wrap{max-width:var(--w-prose)}
.content{padding:1rem 0 3rem}
.article-header{margin-bottom:1.5rem}
.article-header h1{font-size:clamp(1.9rem,4.5vw,2.9rem);font-weight:800;line-height:1.15;letter-spacing:-.025em;margin-bottom:.8rem;color:var(--text)}
.article-header .meta{color:var(--text-muted);font-size:.9rem}
.featured{margin:1.5rem 0 2rem;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border)}
.featured img{width:100%;border-radius:0}

/* TOC */
.toc{background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius);padding:1.3rem 1.6rem;margin:1.5rem 0 2rem}
.toc-title{font-size:.85rem;text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:.8rem;font-weight:700}
.toc-list{counter-reset:toc;padding-left:1.2rem}
.toc-list li{counter-increment:toc;margin-bottom:.4rem;color:var(--text-dim);font-size:.95rem;position:relative}
.toc-list li::marker{color:var(--accent);font-weight:600}
.toc-list a{color:var(--text-dim);text-decoration:none;transition:color .15s}
.toc-list a:hover{color:var(--accent)}

/* Prose */
.prose{font-size:1.07rem;line-height:1.78}
.prose h2{font-size:1.7rem;font-weight:700;margin:3rem 0 1rem;letter-spacing:-.01em;scroll-margin-top:90px}
.prose h2::before{content:'';display:inline-block;width:5px;height:1.4em;background:var(--accent);border-radius:3px;margin-right:.6rem;vertical-align:-.25em}
.prose h3{font-size:1.3rem;font-weight:700;margin:2.2rem 0 .8rem;scroll-margin-top:90px}
.prose h4{font-size:1.1rem;font-weight:600;margin:1.5rem 0 .5rem;color:var(--text)}
.prose p{margin-bottom:1.3rem;color:var(--text);overflow-wrap:break-word;word-wrap:break-word}
.prose a{color:var(--accent2);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(121,192,255,.4);transition:all .15s;overflow-wrap:anywhere;word-break:break-word}
.prose a:hover{color:var(--accent);text-decoration-color:var(--accent)}
.prose ul,.prose ol{margin:1rem 0 1.5rem;color:var(--text);padding-left:1.5rem}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:.6rem}
.prose li::marker{color:var(--accent)}
.prose img{margin:1.5rem auto;border:1px solid var(--border);max-width:100%}
.prose blockquote{border-left:3px solid var(--accent);padding:.5rem 0 .5rem 1.3rem;margin:1.5rem 0;color:var(--text-dim);font-style:italic;background:var(--accent-soft);border-radius:0 8px 8px 0}
.prose code{background:var(--surface);padding:.2rem .45rem;border-radius:5px;font-family:'JetBrains Mono',monospace;font-size:.92em;color:var(--accent2);border:1px solid var(--border-soft)}
.prose pre{background:var(--surface);padding:1.3rem;border-radius:8px;overflow-x:auto;border:1px solid var(--border);margin:1.5rem 0}
.prose pre code{background:none;border:none;padding:0;color:var(--text)}
.prose strong{color:var(--text);font-weight:700}
.prose em{font-style:italic;color:var(--text)}
.prose table{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:.95rem;border:1px solid var(--border);border-radius:8px;overflow:hidden}
.prose th,.prose td{padding:.85rem;border-bottom:1px solid var(--border);text-align:left}
.prose th{background:var(--surface);font-weight:600;color:var(--text)}
.prose tr:last-child td{border-bottom:none}

/* Ads */
.ad-inline{margin:2.5rem auto;max-width:760px;min-height:280px;display:flex;justify-content:center;align-items:center;background:var(--surface);border:1px dashed var(--border-soft);border-radius:8px;padding:.5rem;position:relative}
.ad-inline::before{content:'Publicidad';position:absolute;top:.4rem;left:.6rem;font-size:.65rem;color:var(--text-muted);letter-spacing:.1em;text-transform:uppercase;opacity:.6}
.ad-inline ins{width:100%;min-height:250px}

/* Floating CTA */
.floating-cta{position:fixed;bottom:1.5rem;right:1.5rem;z-index:50;animation:slideUp .5s cubic-bezier(.4,0,.2,1) 1s backwards}
.floating-cta .btn{box-shadow:var(--shadow-md),var(--shadow-glow)}
@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}

/* Back to top */
.back-top{position:fixed;bottom:1.5rem;left:1.5rem;width:42px;height:42px;border-radius:50%;background:var(--surface);border:1px solid var(--border);color:var(--text);font-size:1.2rem;cursor:pointer;opacity:0;visibility:hidden;transition:all .25s;z-index:50}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{background:var(--accent);color:#000;border-color:var(--accent)}

/* Footer */
.site-footer{background:var(--bg2);border-top:1px solid var(--border-soft);margin-top:5rem;padding:3.5rem 0 1.5rem}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2.5rem;margin-bottom:2.5rem}
.footer-brand{font-size:1.15rem;font-weight:700;margin-bottom:.5rem;color:var(--text)}
.footer-desc{color:var(--text-dim);font-size:.92rem;line-height:1.6}
.footer-col h3{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text);margin-bottom:.9rem;font-weight:700}
.footer-col li{margin-bottom:.45rem}
.footer-col a{color:var(--text-dim);text-decoration:none;font-size:.92rem;transition:color .15s}
.footer-col a:hover{color:var(--accent)}
.copyright{padding-top:1.5rem;border-top:1px solid var(--border-soft);color:var(--text-muted);font-size:.85rem;text-align:center}

/* Mobile */
@media(max-width:768px){
  .nav-toggle{display:flex}
  .nav-list{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--border);flex-direction:column;padding:1rem;gap:.2rem}
  .nav-list.open{display:flex}
  .nav-list a{padding:.85rem 1rem;width:100%}
  .footer-inner{grid-template-columns:1fr 1fr;gap:1.8rem}
  .floating-cta{bottom:1rem;right:1rem;left:1rem}
  .floating-cta .btn{width:100%;justify-content:center;font-size:.95rem;padding:.85rem 1.5rem}
  .back-top{bottom:5.5rem;left:1rem;width:38px;height:38px}
  .hero{padding:3rem 0 2.5rem}
  .hero-meta{gap:1.2rem}
  .featured{margin:1rem 0 1.5rem}
  .toc{padding:1rem 1.2rem}
  .ad-inline{margin:1.5rem auto;min-height:250px}
}
@media(max-width:480px){
  .footer-inner{grid-template-columns:1fr}
  .hero h1{font-size:2.4rem}
  .cta-row{flex-direction:column;align-items:stretch}
  .btn{justify-content:center;width:100%}
  .hero-meta{flex-direction:column;gap:.7rem}
}

@media(prefers-reduced-motion:reduce){*,::before,::after{animation:none!important;transition:none!important}}

@media print{
  .site-header,.site-footer,.ad-inline,.floating-cta,.back-top,.reading-progress{display:none}
  body{background:#fff;color:#000}
  .prose a{color:#000;text-decoration:underline}
}