/* Blog MS21Consulting: tema oscuro con movimiento. Solo CSS (sin JS): el HTML lo genera n8n y no cambia. */
:root{--navy:#081225;--ink:#0a0f1f;--blue:#1f6feb;--sky:#53a2ff;--orange:#ff6b35;--text:#cbd5e1;--muted:#94a3b8}
@property --ang{syntax:'<angle>';inherits:false;initial-value:0deg}
*{box-sizing:border-box}
html{scroll-behavior:smooth;color-scheme:dark}
body{margin:0;background:var(--ink);color:var(--text);font:400 17px/1.7 Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden;position:relative}
a{color:var(--sky);text-decoration:none}a:hover{text-decoration:underline}
.wrap{width:100%;max-width:1100px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
.narrow{max-width:760px}
main:has(.cards){max-width:1100px}

/* ---------- Fondo animado: aurora + rejilla ---------- */
body::before{content:"";position:fixed;inset:-20%;z-index:0;pointer-events:none;
  background:
    radial-gradient(38% 34% at 18% 22%,rgba(31,111,235,.34),transparent 70%),
    radial-gradient(34% 30% at 82% 16%,rgba(255,107,53,.22),transparent 70%),
    radial-gradient(40% 36% at 60% 88%,rgba(122,76,255,.18),transparent 70%);
  filter:blur(24px);animation:aurora 22s ease-in-out infinite alternate}
body::after{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;-webkit-mask-image:radial-gradient(70% 60% at 50% 0,#000,transparent 80%);mask-image:radial-gradient(70% 60% at 50% 0,#000,transparent 80%);
  animation:gridmove 30s linear infinite}
@keyframes aurora{0%{transform:translate3d(-3%,-2%,0) scale(1)}50%{transform:translate3d(3%,3%,0) scale(1.08)}100%{transform:translate3d(-2%,4%,0) scale(1.04)}}
@keyframes gridmove{to{background-position:56px 56px,56px 56px}}

/* ---------- Cabecera con barra de progreso de lectura ---------- */
.top{position:sticky;top:0;z-index:20;background:rgba(8,18,37,.78);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.08)}
.top::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;background:linear-gradient(90deg,var(--blue),var(--orange));transform-origin:0 50%;transform:scaleX(0)}
@supports (animation-timeline:scroll()){.top::after{animation:progress linear both;animation-timeline:scroll(root)}}
@keyframes progress{to{transform:scaleX(1)}}
.top-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font:700 18px "Space Grotesk",Inter,sans-serif}
.brand img{transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.brand:hover{text-decoration:none}.brand:hover img{transform:rotate(-8deg) scale(1.12)}
.top nav{display:flex;align-items:center;gap:4px}
.top nav a{position:relative;color:var(--text);font-size:14px;font-weight:500;padding:8px 12px;border-radius:999px;transition:color .2s}
.top nav a:not(.btn)::after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--sky),var(--orange));transform:scaleX(0);transition:transform .3s}
.top nav a:hover,.top nav a.on{color:#fff;text-decoration:none}
.top nav a:hover::after,.top nav a.on::after{transform:scaleX(1)}

/* ---------- Botones ---------- */
.btn{display:inline-block;position:relative;overflow:hidden;background:linear-gradient(90deg,var(--orange),#f0591f,var(--orange));background-size:200% 100%;color:#fff!important;font-weight:600;font-size:15px;padding:12px 22px;border-radius:999px;box-shadow:0 0 30px -8px rgba(255,107,53,.6);transition:transform .25s,box-shadow .25s,background-position .6s}
.btn:hover{text-decoration:none;transform:translateY(-2px);background-position:100% 0;box-shadow:0 10px 36px -8px rgba(255,107,53,.75)}
.btn::after{content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);transform:skewX(-20deg);animation:sheen 4.5s ease-in-out infinite}
@keyframes sheen{0%,60%{left:-60%}100%{left:130%}}
.btn.sm{padding:8px 16px;font-size:14px}
.btn.ghost{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);box-shadow:none;color:#fff!important}
.btn.ghost::after{display:none}
.btn.ghost:hover{background:rgba(255,255,255,.12);box-shadow:0 8px 30px -10px rgba(83,162,255,.5)}

/* ---------- Tipografía y textos ---------- */
main{padding-top:30px;padding-bottom:64px}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:18px;animation:rise .6s both}
h1{font:700 clamp(32px,5.4vw,50px)/1.1 "Space Grotesk",Inter,sans-serif;color:#fff;margin:0 0 14px;letter-spacing:-.02em;animation:rise .7s .05s both}
main>h1{background:linear-gradient(100deg,#fff 0%,var(--sky) 35%,var(--orange) 70%,#fff 100%);background-size:220% auto;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;animation:rise .7s .05s both,shine 7s linear infinite}
@keyframes shine{to{background-position:220% center}}
h2{font:700 26px/1.25 "Space Grotesk",Inter,sans-serif;color:#fff;margin:40px 0 10px}
h3{font:600 17px "Space Grotesk",Inter,sans-serif;color:#fff;margin:0 0 8px}
.meta{font-size:14px;color:var(--muted);margin:0 0 22px;animation:rise .7s .12s both}
.meta span{margin:0 6px;color:var(--orange)}
.lead{font-size:20px;line-height:1.6;color:#e2e8f0;margin:0 0 8px;animation:rise .7s .18s both}
main>.lead{font-size:19px;color:var(--text);max-width:640px}
@keyframes rise{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}

/* ---------- Artículo ---------- */
article h2{position:relative;padding-left:18px}
article h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:5px;border-radius:5px;background:linear-gradient(var(--sky),var(--orange))}
article p,article li{color:var(--text)}
article ul{list-style:none;padding-left:0}
article li{position:relative;margin:9px 0;padding-left:26px}
article li::before{content:"";position:absolute;left:3px;top:.62em;width:9px;height:9px;border-radius:50%;background:linear-gradient(135deg,var(--sky),var(--orange));box-shadow:0 0 12px rgba(255,107,53,.55)}
@supports (animation-timeline:view()){
  article h2,article p,article li,article details,.src,.cta{animation:rise linear both;animation-timeline:view();animation-range:entry 0% entry 55%}
}
details{border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.03);border-radius:14px;padding:14px 18px;margin:10px 0;transition:border-color .25s,background .25s,transform .25s}
details:hover{border-color:rgba(83,162,255,.45);background:rgba(255,255,255,.05);transform:translateX(3px)}
details[open]{border-color:rgba(255,107,53,.5)}
summary{cursor:pointer;font-weight:600;color:#fff}
details p{margin:10px 0 0}
.src{margin-top:34px;padding:16px 20px;border-left:3px solid var(--orange);background:rgba(255,255,255,.03);border-radius:0 12px 12px 0;font-size:15px}
.src ul{margin:0;padding-left:18px}
.cta{position:relative;margin-top:52px;padding:32px;border-radius:24px;border:1px solid rgba(255,255,255,.12);background:linear-gradient(120deg,rgba(31,111,235,.28),rgba(255,107,53,.2),rgba(122,76,255,.22));background-size:240% 240%;animation:cta 9s ease-in-out infinite alternate;overflow:hidden}
.cta::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:conic-gradient(from var(--ang),transparent 0 70%,var(--sky),var(--orange),transparent);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;animation:spin 6s linear infinite;pointer-events:none}
.cta h2{margin-top:0}
.cta-btns{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:0}
@keyframes cta{to{background-position:100% 100%}}
@keyframes spin{to{--ang:360deg}}

/* ---------- Listado: tarjetas con portada animada ---------- */
.cards{list-style:none;margin:34px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px}
.cards li{animation:rise .8s cubic-bezier(.2,.7,.2,1) both}
.cards li:nth-child(2){animation-delay:.08s}.cards li:nth-child(3){animation-delay:.16s}.cards li:nth-child(4){animation-delay:.24s}
.cards li:nth-child(5){animation-delay:.32s}.cards li:nth-child(6){animation-delay:.4s}.cards li:nth-child(n+7){animation-delay:.45s}
@supports (animation-timeline:view()){.cards li:nth-child(n+4){animation:rise linear both;animation-timeline:view();animation-range:entry 0% entry 60%}}
.cards li:nth-child(5n+1){--h:215}.cards li:nth-child(5n+2){--h:18}.cards li:nth-child(5n+3){--h:268}.cards li:nth-child(5n+4){--h:168}.cards li:nth-child(5n+5){--h:335}
.card{position:relative;display:flex;flex-direction:column;height:100%;padding:150px 24px 22px;border-radius:22px;border:1px solid rgba(255,255,255,.1);background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));overflow:hidden;transition:transform .35s cubic-bezier(.2,.7,.2,1),border-color .35s,box-shadow .35s}
.card::before{content:"";position:absolute;left:0;right:0;top:0;height:128px;
  background:
    radial-gradient(60% 90% at 20% 20%,hsla(var(--h),90%,60%,.55),transparent 70%),
    radial-gradient(50% 80% at 90% 90%,hsla(calc(var(--h) + 55),90%,60%,.45),transparent 70%),
    linear-gradient(135deg,hsla(var(--h),70%,16%,1),hsla(calc(var(--h) + 40),70%,10%,1));
  background-size:140% 140%,140% 140%,100% 100%;animation:cover 9s ease-in-out infinite alternate;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.card::after{content:"";position:absolute;left:0;right:0;top:0;height:128px;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.12) 1px,transparent 1px);background-size:26px 26px;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent);mask-image:linear-gradient(180deg,#000,transparent);animation:gridmove 14s linear infinite}
@keyframes cover{to{background-position:100% 100%,0 0,0 0}}
.card:hover{text-decoration:none;transform:translateY(-8px);border-color:hsla(var(--h),90%,65%,.65);box-shadow:0 24px 60px -24px hsla(var(--h),90%,55%,.75),0 0 0 1px hsla(var(--h),90%,65%,.25)}
.card:hover::before{transform:scale(1.08)}
.card h2{font-size:20px;line-height:1.3;margin:8px 0 8px;color:#fff;transition:color .25s}
.card:hover h2{color:hsl(var(--h),100%,82%)}
.card p{margin:0 0 14px;font-size:15px;color:var(--muted);flex:1}
.card time{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.card time::after{content:"Leer →";margin-left:auto;font-weight:600;color:var(--sky);opacity:0;transform:translateX(-8px);transition:opacity .3s,transform .3s}
.card:hover time::after{opacity:1;transform:none}
.tag{position:absolute;top:16px;left:18px;z-index:2;display:inline-block;font-size:12px;font-weight:600;color:#fff;background:rgba(8,18,37,.55);border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);padding:4px 12px;border-radius:999px}
/* Primer artículo: destacado a todo el ancho */
.cards li:first-child{grid-column:1/-1}
.cards li:first-child .card{padding:0 28px 26px;padding-left:min(46%,420px);min-height:230px;justify-content:center}
.cards li:first-child .card::before{right:auto;bottom:0;height:auto;width:min(42%,380px)}
.cards li:first-child .card::after{right:auto;bottom:0;height:auto;width:min(42%,380px);-webkit-mask-image:linear-gradient(90deg,#000,transparent);mask-image:linear-gradient(90deg,#000,transparent)}
.cards li:first-child .tag{top:18px}
.cards li:first-child .card h2{font-size:clamp(22px,3vw,30px);margin-top:22px}
.cards li:first-child .card p{flex:0 0 auto;font-size:16px}
.cards li:first-child .card time::before{content:"NUEVO";font-size:11px;font-weight:700;letter-spacing:.08em;color:#fff;background:linear-gradient(90deg,var(--orange),#f0591f);padding:3px 9px;border-radius:999px;animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 0 0 7px rgba(255,107,53,0)}0%{box-shadow:0 0 0 0 rgba(255,107,53,.55)}}

/* ---------- Pie ---------- */
.foot{position:relative;z-index:1;border-top:1px solid rgba(255,255,255,.08);padding:28px 0;color:var(--muted);font-size:14px;text-align:center;background:rgba(8,18,37,.5)}
.foot p{margin:4px 0}

/* ---------- Móvil y accesibilidad ---------- */
@media(max-width:720px){
  .cards{grid-template-columns:1fr}
  .cards li:first-child .card{padding:150px 24px 22px;min-height:0}
  .cards li:first-child .card::before,.cards li:first-child .card::after{right:0;width:auto;height:128px;bottom:auto;-webkit-mask-image:linear-gradient(180deg,#000,transparent);mask-image:linear-gradient(180deg,#000,transparent)}
}
@media(max-width:560px){.top nav a:not(.btn){display:none}body{font-size:16px}.lead{font-size:18px}.cta{padding:22px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}.top::after{transform:scaleX(0)}}