:root{
  --c-primary:#0b63d6;
  --c-primary-dark:#0a3d8f;
  --c-accent:#22c55e;
  --c-bg:#ffffff;
  --c-soft:#f7faff;
  --c-soft-2:#eaf2ff;
  --c-text:#0f172a;
  --c-muted:#475569;
  --c-line:#e2e8f0;
  --c-success-bg:#dcfce7;
  --c-success-fg:#166534;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 6px 24px rgba(10,61,143,.08);
  --shadow-lg:0 18px 40px rgba(10,61,143,.14);
  --max:1180px;
  --font:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  color:var(--c-text);
  background:var(--c-bg);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none}
a:hover,a:focus-visible{text-decoration:underline}
:focus-visible{outline:3px solid var(--c-primary);outline-offset:3px;border-radius:6px}
h1,h2,h3,h4{line-height:1.2;color:var(--c-primary-dark);margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.6vw,3.2rem);font-weight:800}
h2{font-size:clamp(1.5rem,3.2vw,2.2rem);font-weight:800}
h3{font-size:1.2rem;font-weight:700;color:var(--c-text)}
p{margin:0 0 1rem}

.skip{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip:focus{position:fixed;left:1rem;top:1rem;width:auto;height:auto;padding:.6rem 1rem;background:#0a3d8f;color:#fff;z-index:1000;border-radius:8px}

.container{max-width:var(--max);margin:0 auto;padding:0 1.25rem}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--c-line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.65rem 0}
.brand{display:flex;align-items:center;gap:.6rem}
.brand img{width:160px;height:32px}
.nav{display:flex;gap:.25rem;align-items:center}
.nav a{color:var(--c-text);font-weight:600;padding:.5rem .8rem;border-radius:10px;font-size:.95rem}
.nav a:hover{background:var(--c-soft-2);text-decoration:none}
.nav .cta{background:var(--c-primary);color:#fff;padding:.55rem 1rem}
.nav .cta:hover{background:var(--c-primary-dark)}
.menu-btn{display:none;border:1px solid var(--c-line);background:#fff;border-radius:10px;padding:.5rem .7rem;font-weight:700;cursor:pointer}

/* Hero */
.hero{
  background:
    radial-gradient(800px 400px at 90% -10%,rgba(11,99,214,.10),transparent 60%),
    radial-gradient(700px 400px at -10% 110%,rgba(34,197,94,.10),transparent 60%),
    var(--c-soft);
  padding:clamp(2.5rem,6vw,5rem) 0 clamp(3rem,7vw,6rem);
}
.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(1.5rem,4vw,3rem);align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:.5rem;background:#fff;border:1px solid var(--c-line);color:var(--c-primary-dark);font-weight:700;font-size:.8rem;padding:.4rem .75rem;border-radius:999px;letter-spacing:.04em;text-transform:uppercase}
.eyebrow::before{content:"";width:.5rem;height:.5rem;border-radius:50%;background:var(--c-accent)}
.hero h1 span{color:var(--c-primary)}
.hero p.lead{font-size:clamp(1rem,1.6vw,1.18rem);color:var(--c-muted);max-width:60ch}
.cta-row{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.5rem}
.btn{display:inline-flex;align-items:center;gap:.5rem;border-radius:12px;padding:.85rem 1.2rem;font-weight:700;border:0;cursor:pointer;font-size:1rem;transition:transform .15s ease,background .15s ease,box-shadow .15s ease}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px);text-decoration:none}
.btn-ghost{background:#fff;color:var(--c-primary-dark);border:1px solid var(--c-line)}
.btn-ghost:hover{border-color:var(--c-primary);text-decoration:none}
.hero-art{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:1rem}
.hero-art img{border-radius:var(--radius)}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:2.5rem}
.stat{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:1rem 1.1rem}
.stat strong{display:block;font-size:1.6rem;color:var(--c-primary-dark);font-weight:800;line-height:1.1}
.stat span{color:var(--c-muted);font-size:.88rem}

/* Sections */
section{padding:clamp(2.5rem,6vw,5rem) 0}
.section-head{max-width:62ch;margin:0 auto 2.5rem;text-align:center}
.section-head p{color:var(--c-muted)}

/* Feature cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}
.card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);
  padding:1.5rem;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfe0ff}
.card .icon{
  width:44px;height:44px;border-radius:12px;background:var(--c-soft-2);
  display:grid;place-items:center;color:var(--c-primary-dark);margin-bottom:1rem;
}
.card h3{margin-bottom:.4rem}
.card p{color:var(--c-muted);margin:0;font-size:.95rem}

/* Flow image */
.flow{background:var(--c-soft)}
.flow figure{margin:0;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:1rem;box-shadow:var(--shadow)}
.flow figcaption{color:var(--c-muted);font-size:.9rem;text-align:center;margin-top:.5rem}

/* Flow steps (autorização NFCom) */
#fluxo{background:linear-gradient(180deg,var(--c-soft) 0%,#fff 100%)}
.flow-steps{
  list-style:none;padding:0;margin:0;
  display:grid;grid-template-columns:repeat(5,1fr);
  gap:.9rem;align-items:stretch;
}
.flow-step{position:relative;display:flex;margin:0}
.flow-step-card{
  position:relative;flex:1;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);
  padding:1.6rem 1.05rem 1.2rem;box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:.55rem;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.flow-step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cfe0ff}
.flow-step-num{
  position:absolute;top:-14px;left:1.05rem;
  width:30px;height:30px;border-radius:50%;
  background:var(--c-primary);color:#fff;
  display:grid;place-items:center;
  font-weight:800;font-size:.9rem;
  box-shadow:0 6px 14px rgba(11,99,214,.35);
  border:3px solid #fff;
}
.flow-step-icon{
  width:46px;height:46px;border-radius:12px;
  background:var(--c-soft-2);color:var(--c-primary-dark);
  display:grid;place-items:center;margin-top:.4rem;
}
.flow-step-icon svg{width:24px;height:24px}
.flow-step h3{margin:.15rem 0 0;font-size:1.05rem;color:var(--c-primary-dark);line-height:1.25}
.flow-step p{margin:0;color:var(--c-muted);font-size:.88rem;line-height:1.5}
.flow-step p strong{color:var(--c-text);font-weight:700}

/* Connector arrow between cards (desktop) */
.flow-step + .flow-step::before{
  content:"";position:absolute;top:50%;left:-.85rem;
  width:.7rem;height:2px;
  background:linear-gradient(90deg,#cbd5e1,var(--c-primary));
  transform:translateY(-50%);
}
.flow-step + .flow-step::after{
  content:"";position:absolute;top:50%;left:-.2rem;
  width:0;height:0;
  border:5px solid transparent;border-left-color:var(--c-primary);
  transform:translateY(-50%);
}

/* Final step (DANFCom) — destaque verde */
.flow-step.is-final .flow-step-card{
  background:linear-gradient(180deg,#f0fdf4,#dcfce7);
  border-color:#86efac;
}
.flow-step.is-final .flow-step-num{
  background:var(--c-accent);
  box-shadow:0 6px 14px rgba(34,197,94,.4);
}
.flow-step.is-final .flow-step-icon{background:#bbf7d0;color:var(--c-success-fg)}
.flow-step.is-final h3{color:var(--c-success-fg)}
.flow-step.is-final p{color:#1e5b35}
.flow-step.is-final p strong{color:var(--c-success-fg)}

.flow-note{
  text-align:center;margin:2rem auto 0;max-width:64ch;
  color:var(--c-muted);font-size:.95rem;
  background:#fff;border:1px solid var(--c-line);
  border-radius:999px;padding:.7rem 1.25rem;
  box-shadow:var(--shadow);
}
.flow-note span{
  display:inline-grid;place-items:center;
  width:20px;height:20px;border-radius:50%;
  background:var(--c-accent);color:#fff;
  font-weight:800;font-size:.75rem;
  margin-right:.5rem;vertical-align:-4px;
}

/* Responsivo */
@media (max-width:980px){
  .flow-steps{grid-template-columns:repeat(2,1fr);gap:1.4rem .9rem}
  .flow-step + .flow-step::before,
  .flow-step + .flow-step::after{display:none}
}
@media (max-width:560px){
  .flow-steps{grid-template-columns:1fr}
  .flow-note{border-radius:var(--radius);padding:.9rem 1rem}
}

/* Cronograma */
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}
.tl-item{background:#fff;border:1px solid var(--c-line);border-left:4px solid var(--c-primary);border-radius:var(--radius);padding:1.3rem}
.tl-item.done{border-left-color:var(--c-accent);background:var(--c-success-bg)}
.tl-item.done h3{color:var(--c-success-fg)}
.tl-item time{font-weight:800;color:var(--c-primary-dark);font-size:1.1rem;display:block;margin-bottom:.3rem}
.tl-item.done time{color:var(--c-success-fg)}
.tl-item p{margin:0;color:var(--c-muted);font-size:.95rem}

/* FAQ */
.faq{max-width:840px;margin:0 auto}
details{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);
  padding:1rem 1.25rem;margin-bottom:.75rem;transition:border-color .2s ease;
}
details[open]{border-color:var(--c-primary)}
summary{cursor:pointer;font-weight:700;color:var(--c-text);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:1.4rem;color:var(--c-primary);font-weight:400;line-height:1}
details[open] summary::after{content:"−"}
details p{margin:.8rem 0 0;color:var(--c-muted)}

/* Keywords */
.keywords{background:var(--c-soft)}
.kw-list{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center}
.kw-list span{background:#fff;border:1px solid var(--c-line);color:var(--c-primary-dark);padding:.45rem .85rem;border-radius:999px;font-weight:600;font-size:.9rem}

/* CTA banner */
.cta-banner{
  background:linear-gradient(135deg,var(--c-primary-dark),var(--c-primary));
  color:#fff;border-radius:var(--radius-lg);
  padding:clamp(2rem,4vw,3rem);text-align:center;box-shadow:var(--shadow-lg);
}
.cta-banner h2{color:#fff}
.cta-banner p{color:#cfe0ff;margin-bottom:1.5rem}
.cta-banner .btn-primary{background:#fff;color:var(--c-primary-dark)}
.cta-banner .btn-primary:hover{background:#eaf2ff}

/* Ad / sponsor */
.sponsor{padding:clamp(2.5rem,5vw,4rem) 0;background:#0f172a;color:#e2e8f0}
.sponsor-card{
  display:grid;grid-template-columns:auto 1fr auto;gap:1.5rem;align-items:center;
  background:#111827;border:1px solid #1f2937;border-radius:var(--radius-lg);
  padding:1.5rem;
}
.sponsor-card img{width:200px;height:auto}
.sponsor-card h3{color:#fff;margin:0 0 .3rem}
.sponsor-card p{color:#94a3b8;margin:0;font-size:.95rem}
.sponsor-label{display:block;text-align:center;color:#64748b;font-size:.75rem;letter-spacing:.2em;text-transform:uppercase;margin-bottom:.75rem}
.sponsor-card .btn-primary{background:#10b981;color:#fff;white-space:nowrap}
.sponsor-card .btn-primary:hover{background:#059669}

/* Footer */
.site-footer{background:#0a1628;color:#94a3b8;padding:3rem 0 1.5rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem;margin-bottom:2rem}
.footer-grid h4{color:#fff;font-size:.9rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:.8rem}
.footer-grid ul{list-style:none;padding:0;margin:0}
.footer-grid li{margin-bottom:.4rem}
.footer-grid a{color:#94a3b8}
.footer-grid a:hover{color:#fff}
.footer-grid p{font-size:.92rem;color:#94a3b8;margin-top:.6rem}
.footer-bottom{border-top:1px solid #1f2937;padding-top:1.5rem;text-align:center;font-size:.85rem}
.footer-bottom a{color:#10b981}

/* Responsive */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr}
  .hero-art{order:-1;max-width:520px;margin:0 auto}
  .stats{grid-template-columns:repeat(2,1fr)}
  .cards{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .sponsor-card{grid-template-columns:1fr;text-align:center;justify-items:center}
  .sponsor-card img{width:180px}
}
@media (max-width:640px){
  .nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:.75rem;border-bottom:1px solid var(--c-line);gap:.25rem}
  .nav.open{display:flex}
  .nav a{padding:.75rem 1rem}
  .menu-btn{display:inline-flex}
  .site-header .container{position:relative}
  .stats{grid-template-columns:1fr 1fr}
  .cards{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-row{flex-direction:column;align-items:stretch}
  .btn{justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}

/* Camada responsiva compartilhada */
html{overflow-x:hidden}body{overflow-wrap:break-word}img,svg,video,iframe{max-width:100%;height:auto}button,a,input,select,textarea{touch-action:manipulation}
@media (max-width:760px){
  .container,.wrap,.header-inner{width:100%;max-width:100%;padding-left:16px;padding-right:16px}
  .site-header,.header-inner{max-width:100%}
  .brand{min-width:0}.brand img{max-width:min(46vw,180px);height:auto}
  .nav,.nav-links,.site-nav,.menu{max-width:100%}
  .hero,.section,.benefits,.faq,.services,.timeline,.blog,.contact,.audience,.process,.knowledge,.topics,.comparison,.resource,.seo-section,.seo-deep-dive{overflow:hidden}
  .hero-grid,.hero__content,.hero-content,.split,.split-grid,.two-col,.content-grid,.content-columns,.editorial-split,.benefit-grid,.feature-grid,.service-grid,.audience-grid,.blog-grid,.post-grid,.steps-grid,.seo-topic-grid,.nfcom-network-grid,.footer-grid,.ad-grid,.ad-card,.ad-section,.sync-card,.checklist-layout{grid-template-columns:minmax(0,1fr)!important}
  .hero-copy,.hero-text,.hero-media,.hero-art,.hero-visual,.section-copy,.copy-block,.ad-copy,.sync-copy{min-width:0;max-width:100%}
  h1{font-size:clamp(2rem,10vw,3rem)!important;line-height:1.08!important;overflow-wrap:break-word}
  h2{font-size:clamp(1.5rem,7vw,2.15rem);line-height:1.15}
  p,li{font-size:max(1rem,16px);line-height:1.65}
  .hero-actions,.cta-row,.sync-actions,.seo-actions,.seo-conversion-actions,.ad-actions{display:flex;flex-direction:column;align-items:stretch;gap:12px}
  .hero-actions .button,.hero-actions .btn,.hero-actions a,.cta-row a,.sync-actions a,.seo-actions a,.seo-conversion-actions a,.ad-actions a{width:100%;min-height:48px;justify-content:center;text-align:center}
  .button,.btn,.ad-button,.ad-cta,.nav-cta{min-height:44px}
  .domain-guides{padding-left:16px!important;padding-right:16px!important}
  .domain-guides__grid{grid-template-columns:minmax(0,1fr)!important}
  .domain-guide-card,.seo-topic-card,.service-card,.knowledge-card,.card,.feature{min-width:0;padding:1.15rem}
  table{display:block;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
  pre,code{white-space:pre-wrap;overflow-wrap:anywhere}
  .whatsapp-float{right:12px!important;bottom:max(12px,env(safe-area-inset-bottom))!important;max-width:calc(100vw - 24px)}
  .whatsapp-float__label,.whatsapp-float__text{max-width:calc(100vw - 96px);white-space:normal}
  .site-footer,.footer{padding-bottom:max(2rem,calc(1rem + env(safe-area-inset-bottom)))}
}
@media (max-width:380px){
  .container,.wrap,.header-inner{padding-left:12px;padding-right:12px}
  h1{font-size:clamp(1.8rem,10vw,2.35rem)!important}
  .domain-guides{padding-left:12px!important;padding-right:12px!important}
}

/* Contraste estável para rótulos sobre fundos e imagens variáveis */
.eyebrow{display:table;width:fit-content;padding:.3rem .55rem;border-radius:.4rem;background:#064e3b!important;color:#fff!important;text-shadow:none!important}
.ad-logo-card span,.sync-logo-link span,.sync-card>span{color:#4b5563!important}
.sponsor-label{color:#cbd5e1!important}.sponsor .btn-primary{background:#047857!important;color:#fff!important}.footer-bottom a{text-decoration:underline;text-underline-offset:3px}
.footer-grid h3{color:#fff!important}

/* whatsapp-floating-v3: visual unificado, sem expansão automática */
.whatsapp-float{isolation:isolate;width:auto!important;max-width:calc(100vw - 36px);min-width:62px;height:62px;padding:0 1.15rem 0 .55rem!important;display:flex;align-items:center;justify-content:center!important;gap:.7rem!important;overflow:visible;box-sizing:border-box;border:1px solid rgba(255,255,255,.28);border-radius:999px;background:#087f5b;color:#fff;font-size:.9rem;line-height:1;font-weight:800;letter-spacing:-.01em;text-decoration:none;white-space:nowrap;box-shadow:0 16px 38px rgba(4,72,51,.34),inset 0 1px 0 rgba(255,255,255,.14);animation:whatsapp-float-in .45s cubic-bezier(.2,.8,.2,1) both!important;transition:transform .22s ease,background-color .22s ease,box-shadow .22s ease!important}
.whatsapp-float::after{content:"";position:absolute;top:7px;left:45px;width:8px;height:8px;border:2px solid #087f5b;border-radius:50%;background:#b8f28b;box-sizing:content-box}
.whatsapp-float svg{width:44px!important;height:44px!important;padding:9px;flex:0 0 auto;box-sizing:border-box;border-radius:50%;background:rgba(255,255,255,.13);fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}
.whatsapp-float :is(.whatsapp-float__label,.whatsapp-float__text){display:inline-block!important;max-width:230px!important;margin-left:0!important;overflow:visible!important;opacity:1!important;transform:none!important;animation:none!important}
.whatsapp-float:is(:hover,:focus-visible){width:auto!important;background:#066b4c;color:#fff;filter:none;transform:translateY(-3px) scale(1.015);box-shadow:0 20px 42px rgba(4,72,51,.42),inset 0 1px 0 rgba(255,255,255,.18)}
.whatsapp-float:active{transform:translateY(-1px) scale(.98)}
.whatsapp-float:focus-visible{outline:3px solid #ffd166;outline-offset:4px}
@keyframes whatsapp-float-in{from{opacity:0;transform:translateY(12px) scale(.96)}to{opacity:1;transform:none}}
@media(max-width:640px){.whatsapp-float{right:12px!important;bottom:max(12px,env(safe-area-inset-bottom))!important;width:58px!important;min-width:58px;height:58px;padding:0!important;justify-content:center!important}.whatsapp-float svg{width:46px!important;height:46px!important}.whatsapp-float::after{top:5px;left:auto;right:3px}.whatsapp-float :is(.whatsapp-float__label,.whatsapp-float__text){position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip-path:inset(50%);white-space:nowrap;border:0}}
@media(prefers-reduced-motion:reduce){.whatsapp-float{animation:none!important;transition:none!important}}