:root{
  --azul:#1A56DB; --azul-profundo:#11399E; --azul-claro:#EAF1FE;
  --coral:#FF5A2C; --coral-profundo:#C8390F; --verde-zap:#0E7A33; --verde-zap-d:#0A5526;
  --tinta:#0F1B2D; --tinta-suave:#41506A; --nevoa:#D9E1EE;
  --fundo:#F7F9FC; --superficie:#FFFFFF;
  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-pill:999px;
  --lift:0 6px 24px rgba(26,86,219,.10); --lift-h:0 12px 36px rgba(26,86,219,.18);
  --ease:cubic-bezier(.16,1,.3,1);
  --fdisp:'Bricolage Grotesque',sans-serif; --fbody:'Hanken Grotesk',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--fbody);background:var(--fundo);color:var(--tinta);line-height:1.7;font-size:18px;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--fdisp);font-weight:800;line-height:1.1;letter-spacing:-.03em;text-wrap:balance;color:var(--tinta)}
a{color:var(--azul-profundo);text-decoration:none}
img{max-width:100%;display:block}
.wrap{width:100%;max-width:1140px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px;background:var(--azul);color:#fff;padding:10px 16px;border-radius:var(--r-sm);z-index:200}
.skip:focus{left:16px;top:16px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--fbody);font-weight:600;font-size:1rem;padding:14px 24px;border-radius:var(--r-pill);border:none;cursor:pointer;transition:background .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);min-height:50px}
.btn svg{width:20px;height:20px;flex:none}
.btn-zap{background:var(--verde-zap);color:#fff}
.btn-zap:hover{background:var(--verde-zap-d);transform:translateY(-2px);box-shadow:0 12px 36px rgba(14,122,51,.28)}
.btn-primary{background:var(--azul);color:#fff}
.btn-primary:hover{background:var(--azul-profundo);transform:translateY(-2px);box-shadow:var(--lift-h)}
:focus-visible{outline:3px solid rgba(26,86,219,.5);outline-offset:2px;border-radius:4px}

/* nav */
.nav{position:sticky;top:0;z-index:100;background:rgba(247,249,252,.85);backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid transparent;transition:border-color .25s,box-shadow .25s}
.nav.scrolled{border-color:var(--nevoa);box-shadow:0 2px 16px rgba(15,27,45,.05)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-family:var(--fdisp);font-weight:800;font-size:1.3rem;letter-spacing:-.03em;color:var(--tinta)}
.logo b{color:var(--azul)}
.nav-right{display:flex;align-items:center;gap:18px}
.nav-back{font-weight:600;font-size:.95rem;color:var(--tinta-suave)}
.nav-back:hover{color:var(--azul)}

/* article */
.article{padding:40px 0 16px}
.breadcrumb{font-size:.85rem;color:var(--tinta-suave);margin-bottom:20px}
.breadcrumb a{color:var(--tinta-suave)}
.breadcrumb a:hover{color:var(--azul)}
.art-head{max-width:760px;margin:0 auto 28px}
.kicker{display:inline-block;font-size:.8rem;font-weight:700;color:var(--coral-profundo);background:#FFEDE5;padding:5px 12px;border-radius:var(--r-pill);margin-bottom:16px}
.art-head h1{font-size:clamp(2rem,4.5vw,3.1rem);margin-bottom:16px}
.art-sub{font-size:1.2rem;color:var(--tinta-suave);line-height:1.5}
.art-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:20px;font-size:.92rem;color:var(--tinta-suave)}
.art-meta .who{display:flex;align-items:center;gap:8px}
.art-meta .av{width:34px;height:34px;border-radius:50%;background:var(--azul);color:#fff;display:grid;place-items:center;font-weight:700;font-size:.85rem;font-family:var(--fdisp)}
.art-meta .dot{opacity:.5}
.art-cover{max-width:920px;margin:0 auto 36px;height:clamp(180px,32vw,340px);border-radius:var(--r-lg);background:var(--azul);display:grid;place-items:center;overflow:hidden;position:relative}
.art-cover::after{content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;background:var(--azul-profundo);opacity:.5}
.art-cover .emoji{font-size:clamp(60px,12vw,120px);position:relative;z-index:2;filter:drop-shadow(0 8px 24px rgba(0,0,0,.2))}

/* prose */
.prose{max-width:720px;margin:0 auto}
.prose>p,.prose>ul,.prose>ol{font-size:1.12rem;line-height:1.75;color:#21314a;margin-bottom:24px}
.prose h2{font-size:clamp(1.5rem,3vw,2rem);margin:44px 0 16px}
.prose h2 em{font-style:normal;color:var(--azul)}
.prose h3{font-size:1.3rem;margin:32px 0 12px}
.prose ul,.prose ol{padding-left:24px}
.prose li{margin-bottom:10px}
.prose strong{color:var(--tinta);font-weight:700}
.prose a{color:var(--azul-profundo);font-weight:600;text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
.prose a:hover{color:var(--azul)}
.prose blockquote{margin:28px 0;padding:20px 24px;background:var(--azul-claro);border-radius:var(--r-md);font-size:1.18rem;color:var(--azul-profundo);font-weight:500}
.prose .callout{margin:28px 0;padding:22px 24px;background:var(--superficie);border:1px solid var(--nevoa);border-radius:var(--r-lg);box-shadow:var(--lift)}
.prose .callout strong{color:var(--azul-profundo)}
.prose figure{margin:30px 0}
.prose figure img{width:100%;border-radius:var(--r-lg);display:block;border:1px solid var(--nevoa)}
.prose figure figcaption{font-size:.9rem;color:var(--tinta-suave);margin-top:10px;text-align:center}
.prose .table-wrap{overflow-x:auto;margin:30px 0;border:1px solid var(--nevoa);border-radius:var(--r-md)}
.prose table{width:100%;border-collapse:collapse;font-size:1rem;min-width:460px}
.prose thead th{background:var(--azul);color:#fff;font-weight:700;text-align:left;padding:13px 16px;font-size:.95rem}
.prose tbody td{padding:13px 16px;border-top:1px solid var(--nevoa);color:#21314a}
.prose tbody tr:nth-child(even){background:var(--azul-claro)}
.prose tbody td:first-child{font-weight:700;color:var(--azul-profundo)}

/* cta */
.art-cta{max-width:760px;margin:48px auto 0;background:var(--azul);color:#fff;border-radius:var(--r-lg);padding:clamp(28px,5vw,44px);text-align:center;position:relative;overflow:hidden}
.art-cta::after{content:"";position:absolute;left:-60px;bottom:-100px;width:280px;height:280px;border-radius:50%;background:var(--azul-profundo);opacity:.5}
.art-cta>*{position:relative;z-index:2}
.art-cta h2{color:#fff;font-size:clamp(1.5rem,3vw,2rem);margin-bottom:10px}
.art-cta p{color:rgba(255,255,255,.9);margin-bottom:22px;font-size:1.05rem}

/* related / back */
.art-back{max-width:760px;margin:40px auto 0;text-align:center}
.art-back a{font-weight:700;color:var(--azul-profundo)}

/* footer */
footer{background:var(--tinta);color:rgba(255,255,255,.72);padding:48px 0 28px;margin-top:64px}
.foot-in{display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:center}
.foot-logo{font-family:var(--fdisp);font-weight:800;font-size:1.3rem;color:#fff}
.foot-logo b{color:#6E97F0}
.foot-in p{font-size:.85rem;color:rgba(255,255,255,.6)}
.foot-in a{color:rgba(255,255,255,.8)}

/* whatsapp float */
.wa-float{position:fixed;right:18px;bottom:18px;z-index:90;width:58px;height:58px;border-radius:50%;background:var(--verde-zap);color:#fff;display:grid;place-items:center;box-shadow:0 8px 28px rgba(14,122,51,.4);transition:transform .25s var(--ease)}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:30px;height:30px}

@media(max-width:680px){
  body{font-size:17px}
  .wrap{padding:0 28px}
  .nav-back span{display:none}
  .prose>p,.prose>ul,.prose>ol{font-size:1.06rem}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important}
  .btn,.wa-float{transition:none!important}
}