/* Blog de Nubetia: listado, categorías y artículo.
   Mismo sistema que el sitio (look oscuro "Agentic AI Security"); columna de lectura de 760px. */
[hidden]{display:none!important}
:root{
  --navy-950:#050A26; --navy-900:#0A1654; --navy-925:#060C30;
  --sky:#5FB4FF; --mist:#ECEAF6; --ink:#FFFFFF; --ink-muted:#A9C4FF; --body:#D6DEFA;
  --divider:#3D6BFF; --rule:rgba(61,107,255,.42); --rule-soft:rgba(61,107,255,.22);
  --panel:rgba(10,22,84,.45); --panel-strong:rgba(10,22,84,.72);
  --on-accent:#0A1654; --wa:#25D366; --on-wa:#052E16;
  --gradient-night:linear-gradient(160deg,#050A26 0%,#0A1654 50%,#060C30 100%);
  --font-display:Montserrat,"Helvetica Neue",Helvetica,Arial,sans-serif;
  --font-text:"Helvetica Neue",Helvetica,Arial,sans-serif;
  --round:9999px; --hh:76px;
  --ease-out:cubic-bezier(.2,.7,.2,1); --ease-io:cubic-bezier(.65,0,.35,1);
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--navy-950);scroll-padding-top:calc(var(--hh) + 16px)}
@media (prefers-reduced-motion:no-preference){ html{scroll-behavior:smooth} }
body{margin:0;background:var(--navy-950);color:var(--ink);font-family:var(--font-text);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto}
a{color:var(--sky)} a:hover{color:var(--ink-muted)}
:focus-visible{outline:2px solid var(--sky);outline-offset:3px}
.wrap{max-width:1200px;margin-inline:auto;padding-inline:clamp(16px,4vw,32px)}
.read{max-width:760px;margin-inline:auto;padding-inline:clamp(16px,4vw,32px)}
.skip{position:absolute;left:16px;top:-60px;z-index:100;padding:10px 16px;border-radius:var(--round);background:var(--sky);color:var(--on-accent);font-weight:700;text-decoration:none}
.skip:focus{top:12px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;height:var(--hh);background:rgba(5,10,38,.86);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--rule-soft)}
.header-row{position:relative;height:100%;display:flex;align-items:center;gap:16px 26px}
.brand{display:flex;align-items:center;min-height:44px;margin-right:auto;text-decoration:none}
.brand-lockup{position:relative;display:block;width:clamp(180px,19vw,236px);aspect-ratio:3000/527}
.brand-lockup img{position:absolute;display:block;height:auto}
.brand .mark{left:0;top:2.657%;width:39.433%}
.brand .word{left:43.567%;top:0;width:56.433%}
.brand .tag{position:absolute;left:43.567%;top:74.194%;width:45.733%;aspect-ratio:1100/109}
.brand .tag img{position:static;width:100%}
.nav{display:flex;align-items:center;gap:4px 22px}
.nav a{position:relative;color:var(--ink);text-decoration:none;padding:12px 0;white-space:nowrap}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;border-radius:var(--round);background:var(--sky);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease-out)}
.nav a:hover::after,.nav a[aria-current]::after{transform:scaleX(1)}
.header-cta{white-space:nowrap}
.m-menu{display:none}
.m-menu summary{display:inline-flex;align-items:center;gap:10px;min-height:44px;padding-inline:18px;border-radius:var(--round);border:1px solid rgba(169,196,255,.5);color:var(--ink);font-weight:700;cursor:pointer;list-style:none;user-select:none}
.m-menu summary::-webkit-details-marker{display:none}
.m-menu summary svg{width:18px;height:18px}
.m-menu[open] summary{border-color:var(--sky);background:rgba(95,180,255,.1)}
.m-menu-panel{position:absolute;top:calc(100% + 1px);left:0;right:0;display:flex;flex-direction:column;padding:4px clamp(16px,4vw,32px) 20px;background:var(--navy-950);border-bottom:1px solid var(--rule-soft)}
.m-menu-panel a:not(.btn){padding-block:14px;color:var(--ink);text-decoration:none;font-size:18px;border-bottom:1px solid var(--rule-soft)}
.m-menu-panel a[aria-current]{color:var(--sky)}
.m-menu-panel .btn{margin-top:20px}
@media (max-width:1240px){ .site-header .nav,.site-header .header-cta{display:none} .m-menu{display:block} }

/* ---------- Buttons ---------- */
.btn{position:relative;isolation:isolate;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:54px;padding-inline:30px;border-radius:var(--round);border:1px solid transparent;font-family:var(--font-text);font-weight:700;font-size:17px;text-decoration:none;cursor:pointer;transition:transform .25s var(--ease-out),box-shadow .25s,background-color .25s,border-color .25s}
.btn svg{width:20px;height:20px;flex:none}
.btn-primary{background:var(--sky);color:var(--on-accent)}
.btn-primary:hover{color:var(--on-accent);transform:translateY(-2px);box-shadow:0 12px 32px -10px rgba(95,180,255,.8)}
.btn-primary::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(105deg,transparent 30%,rgba(255,255,255,.6) 50%,transparent 70%);transform:translateX(-120%);animation:shine 5.5s 2.8s var(--ease-io) infinite}
@keyframes shine{0%{transform:translateX(-120%)}20%,100%{transform:translateX(120%)}}
.btn-wa{background:var(--wa);color:var(--on-wa)}
.btn-wa:hover{color:var(--on-wa);transform:translateY(-2px);box-shadow:0 12px 32px -10px rgba(37,211,102,.75)}
.btn-sm{min-height:46px;padding-inline:22px;font-size:16px}
.btn-block{width:100%}

/* ---------- Breadcrumbs, eyebrow, chips ---------- */
.crumbs ol{display:flex;flex-wrap:wrap;gap:4px 0;margin:0 0 18px;padding:0;list-style:none;font-size:14px;color:var(--ink-muted)}
.crumbs li+li::before{content:"/";margin-inline:10px;color:var(--rule)}
.crumbs a{color:var(--ink-muted);text-decoration:none}
.crumbs a:hover{color:var(--ink)}
.crumbs [aria-current]{color:var(--ink)}
.eyebrow{margin:0 0 14px;font-weight:700;font-size:16px;color:var(--sky)}
.chip{align-self:flex-start;display:inline-flex;align-items:center;padding:5px 12px;border-radius:var(--round);border:1px solid var(--rule);background:rgba(95,180,255,.08);font-size:13px;font-weight:700;color:var(--sky);line-height:1.3}

/* ---------- Blog list ---------- */
.blog-head{background:radial-gradient(ellipse 55% 85% at 10% 0%,rgba(29,63,214,.5),rgba(29,63,214,0) 70%),radial-gradient(ellipse 40% 70% at 100% 100%,rgba(59,43,184,.35),rgba(59,43,184,0) 70%),var(--gradient-night);border-bottom:1px solid var(--rule-soft);padding-block:clamp(48px,7vw,96px) clamp(32px,4vw,48px)}
.blog-head h1{max-width:860px;margin:0;font-family:var(--font-display);font-weight:500;font-size:clamp(34px,4.6vw,56px);line-height:1.08;letter-spacing:-.01em;color:var(--mist);text-wrap:balance}
.blog-head h1 strong{font-weight:700;color:var(--sky)}
.intro{max-width:640px;margin:18px 0 0;font-size:clamp(17px,1.5vw,20px);line-height:1.5;color:var(--ink-muted)}
.cats{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.cat{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding-inline:18px;border-radius:var(--round);border:1px solid rgba(169,196,255,.4);color:var(--ink);text-decoration:none;font-size:15px;font-weight:700;transition:border-color .2s,background-color .2s}
.cat span{font-weight:400;color:var(--ink-muted);font-variant-numeric:tabular-nums}
.cat:hover{color:var(--ink);border-color:var(--sky);background:rgba(95,180,255,.08)}
.cat[aria-current]{background:var(--sky);border-color:var(--sky);color:var(--on-accent)}
.cat[aria-current] span{color:var(--on-accent)}
.blog-list{padding-block:clamp(36px,5vw,64px) 8px}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(320px,100%),1fr));gap:24px}
.card{min-width:0}
.card-link{height:100%;display:flex;flex-direction:column;border:1px solid var(--rule-soft);background:var(--panel);color:var(--ink);text-decoration:none;overflow:hidden;transition:border-color .3s,transform .3s var(--ease-out),box-shadow .3s}
.card-link:hover{color:var(--ink);border-color:var(--rule);transform:translateY(-4px);box-shadow:0 22px 44px -26px rgba(95,180,255,.55)}
.card-img{aspect-ratio:1200/630;overflow:hidden;background:var(--navy-900)}
.card-img img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease-out)}
.card-link:hover .card-img img{transform:scale(1.04)}
.card-img-empty{display:block;width:100%;height:100%;background:radial-gradient(ellipse 60% 80% at 20% 10%,rgba(29,63,214,.6),rgba(29,63,214,0) 70%),var(--gradient-night)}
.card-body{flex:1;display:flex;flex-direction:column;gap:12px;padding:22px 22px 24px}
.card-title{margin:0;font-family:var(--font-display);font-weight:700;font-size:21px;line-height:1.25;color:var(--mist);text-wrap:balance}
.card-link:hover .card-title{color:var(--ink)}
.card-desc{margin:0;color:var(--body);font-size:15.5px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;flex-wrap:wrap;gap:4px 8px;margin:auto 0 0;padding-top:6px;font-size:13.5px;color:var(--ink-muted)}
.card-featured{margin-bottom:24px}
@media (min-width:960px){
  .card-featured .card-link{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr)}
  .card-featured .card-img{aspect-ratio:auto;min-height:340px}
  .card-featured .card-body{justify-content:center;gap:16px;padding:40px 44px}
  .card-featured .card-title{font-size:clamp(26px,2.4vw,34px)}
  .card-featured .card-desc{font-size:17px;-webkit-line-clamp:4}
}
.pager{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:40px;padding-top:24px;border-top:1px solid var(--rule-soft)}
.pager ol{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;margin:0;padding:0;list-style:none}
.pager li a,.pager li span{display:grid;place-items:center;min-width:44px;min-height:44px;padding-inline:10px;border-radius:var(--round);border:1px solid rgba(169,196,255,.35);color:var(--ink);text-decoration:none;font-weight:700;font-variant-numeric:tabular-nums}
.pager li a:hover{border-color:var(--sky);background:rgba(95,180,255,.08);color:var(--ink)}
.pager li [aria-current]{background:var(--sky);border-color:var(--sky);color:var(--on-accent)}
.pager-btn{flex:none;min-width:150px;color:var(--sky);font-weight:700;text-decoration:none}
.pager-btn:last-child{text-align:right}
.h1-page{font-size:.5em;font-weight:500;color:var(--ink-muted);white-space:nowrap}
@media (max-width:640px){ .pager{flex-wrap:wrap;justify-content:center} .pager-btn{min-width:0} .pager-btn[aria-hidden]{display:none} }
.empty{padding:56px clamp(20px,4vw,48px);border:1px dashed var(--rule);background:var(--panel);text-align:center}
.empty h2{margin:0 0 10px;font-family:var(--font-display);font-size:clamp(22px,2.4vw,28px);color:var(--mist)}
.empty p{margin:0 0 24px;color:var(--ink-muted)}

/* ---------- Article ---------- */
.post-head{background:radial-gradient(ellipse 55% 85% at 10% 0%,rgba(29,63,214,.45),rgba(29,63,214,0) 70%),var(--gradient-night);padding-block:clamp(40px,6vw,80px) clamp(28px,4vw,44px)}
.post-head h1{margin:0;font-family:var(--font-display);font-weight:700;font-size:clamp(32px,4.4vw,50px);line-height:1.1;letter-spacing:-.01em;color:var(--mist);text-wrap:balance}
.lead{margin:18px 0 0;font-size:clamp(18px,1.7vw,21px);line-height:1.5;color:var(--ink-muted)}
.meta{display:flex;flex-wrap:wrap;gap:4px 10px;margin:22px 0 0;font-size:15px;color:var(--ink-muted)}
.meta span:first-child{color:var(--ink);font-weight:700}
.post-cover{max-width:1040px;margin:0 auto;padding-inline:clamp(0px,3vw,32px)}
.post-cover img{display:block;width:100%;aspect-ratio:1200/630;object-fit:cover;border:1px solid var(--rule-soft)}

.toc{margin:36px 0 0;padding:20px 24px;border:1px solid var(--rule);background:var(--panel)}
.toc h2{margin:0 0 10px;font-size:14px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-muted)}
.toc ol{margin:0;padding-left:1.3em;color:var(--sky)}
.toc li{margin-block:6px}
.toc a{color:var(--ink);text-decoration:none}
.toc a:hover{color:var(--sky)}

.post-body{padding-block:36px 8px;font-size:18px;line-height:1.75;color:var(--body);overflow-wrap:break-word}
.post-body>*:first-child{margin-top:0}
.post-body p,.post-body .post-p{margin:0 0 1.25em}
.post-body h2{margin:2em 0 .6em;font-family:var(--font-display);font-weight:700;font-size:clamp(25px,2.5vw,30px);line-height:1.25;color:var(--mist);text-wrap:balance}
.post-body h3{margin:1.7em 0 .5em;font-family:var(--font-display);font-weight:700;font-size:21px;line-height:1.3;color:var(--ink)}
.post-body h4,.post-body h5,.post-body h6{margin:1.5em 0 .4em;font-size:18px;color:var(--ink)}
.post-body strong{color:var(--ink)}
.post-body a{color:var(--sky);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.post-body a:hover{color:var(--ink)}
.post-body ul,.post-body ol{margin:0 0 1.25em;padding-left:1.4em}
.post-body li{margin-bottom:.45em}
.post-body li::marker{color:var(--sky)}
.post-body blockquote{margin:1.6em 0;padding:4px 0 4px 22px;border-left:3px solid var(--sky);font-size:20px;line-height:1.6;color:var(--mist)}
.post-body blockquote p:last-child{margin-bottom:0}
.post-body hr{margin:2.4em 0;border:0;border-top:1px solid var(--rule)}
.post-body code{padding:.12em .4em;border-radius:6px;background:var(--panel-strong);font-size:.88em;color:var(--mist)}
.post-body pre{margin:0 0 1.4em;padding:18px 20px;overflow-x:auto;border:1px solid var(--rule-soft);background:var(--panel-strong);font-size:15px;line-height:1.6}
.post-body pre code{padding:0;background:none}
.post-body img{display:block;max-width:100%;height:auto;border:1px solid var(--rule-soft)}
.post-figure{margin:1.8em 0}
.post-figure figcaption{margin-top:10px;font-size:14.5px;line-height:1.5;color:var(--ink-muted)}
.table-wrap{margin:0 0 1.4em;overflow-x:auto;border:1px solid var(--rule-soft)}
.post-body table{width:100%;border-collapse:collapse;font-size:15.5px;line-height:1.5}
.post-body th,.post-body td{padding:10px 14px;border-bottom:1px solid var(--rule-soft);text-align:left;vertical-align:top}
.post-body th{background:var(--panel-strong);color:var(--ink)}
.post-body iframe{max-width:100%}

.share{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:28px 0 0;padding-top:24px;border-top:1px solid var(--rule-soft)}
.share>span:first-child{margin-right:4px;font-size:14px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-muted)}
.share-btn{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding-inline:18px;border-radius:var(--round);border:1px solid rgba(169,196,255,.4);background:transparent;color:var(--ink);font:inherit;font-size:15px;font-weight:700;text-decoration:none;cursor:pointer;transition:border-color .2s,background-color .2s}
.share-btn:hover{color:var(--ink);border-color:var(--sky);background:rgba(95,180,255,.08)}
.share-btn svg{width:17px;height:17px}
.copy-status{font-size:14px;color:var(--sky)}

.cta-box{margin:44px 0 clamp(56px,7vw,88px);padding:clamp(28px,4vw,44px);border:1px solid var(--rule);background:radial-gradient(ellipse 70% 120% at 0% 0%,rgba(29,63,214,.45),rgba(29,63,214,0) 70%),var(--panel)}
.cta-box h2{margin:0 0 10px;font-family:var(--font-display);font-weight:500;font-size:clamp(24px,2.6vw,32px);line-height:1.2;color:var(--mist);text-wrap:balance}
.cta-box h2 strong{font-weight:700;color:var(--sky)}
.cta-box p{margin:0 0 24px;font-size:17px;color:var(--ink-muted)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-wrap .cta-box{margin-top:clamp(40px,5vw,64px)}

.related{padding-block:clamp(48px,6vw,80px);border-top:1px solid var(--rule-soft);background:var(--navy-925)}
.related h2{margin:0 0 28px;font-family:var(--font-display);font-weight:700;font-size:clamp(26px,2.8vw,34px);color:var(--mist)}
.related .card-title{font-size:19px}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-950);border-top:1px solid var(--rule-soft);padding-block:64px 36px}
.footer-top{display:flex;flex-wrap:wrap;gap:48px 64px;justify-content:space-between}
.footer-brand{flex:1 1 300px;max-width:400px;display:flex;flex-direction:column;gap:18px}
.footer-logo{display:block;width:min(100%,300px);height:auto}
.footer-brand p{margin:0;font-size:18px;line-height:1.4;color:var(--ink);text-wrap:balance}
.footer-brand p strong{font-weight:700;color:var(--sky)}
.footer-cols{display:flex;flex-wrap:wrap;gap:40px 64px}
.footer-col{display:flex;flex-direction:column;gap:2px;min-width:0}
.footer-col h2{margin:0 0 10px;font-size:16px;font-weight:700;color:var(--ink)}
.footer-col a{padding-block:6px;font-size:15px;color:var(--ink-muted);text-decoration:none}
.footer-col a:hover{color:var(--ink)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between;margin-top:48px;padding-top:24px;border-top:1px solid var(--rule-soft);font-size:14px;color:var(--ink-muted)}
.footer-bottom p{margin:0}
.footer-bottom strong{color:var(--ink)}

.wa-float{position:fixed;right:calc(20px + env(safe-area-inset-right,0px));bottom:calc(20px + env(safe-area-inset-bottom,0px));z-index:60;display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding-inline:22px;border-radius:var(--round);background:var(--wa);color:var(--on-wa);font-weight:700;font-size:16px;text-decoration:none;box-shadow:0 14px 34px -10px rgba(37,211,102,.75);transition:transform .25s var(--ease-out)}
.wa-float:hover{color:var(--on-wa);transform:translateY(-3px)}
.wa-float svg{width:24px;height:24px;flex:none}
@media (max-width:640px){
  .wa-float{width:56px;padding:0}
  .wa-float span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
  .post-body{font-size:17px}
  .cta-actions .btn{flex:1 1 100%}
  .post-cover{padding-inline:0}
  .post-cover img{border-inline:0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}