/* ═══════════════════════════════════════════════════════════
   IA2Business · Blog
   Mesmo sistema de design da home (index.html) — tokens idênticos.
   ═══════════════════════════════════════════════════════════ */
:root{
  --ink:#050510;
  --ink-elev:#0d0d16;
  --ink-hi:#16161e;
  --paper:#e8e8ec;
  --paper-mute:#85858f;
  --paper-dim:#4a4a52;
  --violet:#a855f7;
  --violet-deep:#533afd;
  --violet-soft:rgba(168,85,247,.12);
  --rule:rgba(232,232,236,.08);
  --rule-hi:rgba(232,232,236,.18);
  --success:#34d399;
  --danger:#f87171;
  --ff-display:'Inter Tight','Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  --ff:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  --ff-head:'Inter Tight','Inter',sans-serif;
  --ff-mono:'Source Code Pro',ui-monospace,monospace;
}
@property --sn-angle{syntax:"<angle>";initial-value:0deg;inherits:false}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--ink);color:var(--paper);font-family:var(--ff);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden;letter-spacing:-.005em}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul{list-style:none}
img{max-width:100%;display:block}
::selection{background:var(--violet-deep);color:#fff}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--violet);outline-offset:2px;border-radius:4px}

/* Global overlays */
.g-grid{position:fixed;inset:0;pointer-events:none;z-index:0;background-size:44px 44px;background-image:linear-gradient(to right,rgba(232,232,236,.022) 1px,transparent 1px),linear-gradient(to bottom,rgba(232,232,236,.022) 1px,transparent 1px)}
.g-lines{position:fixed;inset:0;pointer-events:none;z-index:0;max-width:1400px;margin:0 auto;border-left:1px solid rgba(232,232,236,.03);border-right:1px solid rgba(232,232,236,.03)}
.g-lines::before,.g-lines::after,.g-lines>i{content:'';position:absolute;top:0;bottom:0;width:1px;background:rgba(232,232,236,.02)}
.g-lines::before{left:25%}.g-lines>i{left:50%}.g-lines::after{left:75%}
.container{position:relative;z-index:1;max-width:1400px;margin:0 auto;padding-left:24px;padding-right:24px}
.container.narrow{max-width:840px}

/* Type */
h1,h2,h3,h4{font-family:var(--ff-display);font-weight:400;letter-spacing:-.03em;line-height:1.05;color:var(--paper)}
.h-mono{font-family:var(--ff-mono);font-size:10px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--paper-mute)}
.tabular{font-variant-numeric:tabular-nums}

/* Nav (idêntico à home) */
.nav{position:fixed;top:24px;left:0;right:0;z-index:50;padding:0 24px}
.nav-in{max-width:1400px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav-brand{display:flex;align-items:center;gap:12px;font-weight:600;font-size:11px;color:var(--paper);text-transform:uppercase;letter-spacing:.06em}
.nav-brand .logo{width:22px;height:22px;flex-shrink:0}
.nav-brand .sep{width:1px;height:12px;background:var(--rule-hi)}
.nav-brand .kind{color:var(--paper-mute);font-weight:400;letter-spacing:.18em;font-size:10px}
.nav-pill{display:flex;align-items:center;gap:2px;padding:6px 8px;border:1px solid var(--rule);background:rgba(13,13,22,.7);backdrop-filter:blur(20px);border-radius:999px;box-shadow:0 0 0 1px rgba(0,0,0,.5),0 20px 40px rgba(0,0,0,.4)}
.nav-pill a{padding:8px 16px;font-size:11px;font-weight:500;letter-spacing:.02em;color:var(--paper-mute);border-radius:999px;transition:color .2s,background .2s}
.nav-pill a.act{background:var(--paper);color:var(--ink);font-weight:600}
.nav-pill a:not(.act):hover{color:var(--paper);background:rgba(232,232,236,.05)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;font-family:var(--ff-mono);font-size:10px;text-transform:uppercase;letter-spacing:.14em;color:var(--paper);transition:opacity .2s}
.nav-cta:hover{opacity:.7}
.nav-cta::after{content:'+';color:var(--paper-mute);font-size:14px;line-height:1}
@media(max-width:840px){.nav-pill{display:none}}

/* Buttons */
.btn-shiny{position:relative;overflow:hidden;border-radius:999px;padding:16px 34px;font-family:var(--ff);font-size:11px;line-height:1;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:#fff;background:linear-gradient(var(--ink),var(--ink)) padding-box,conic-gradient(from var(--sn-angle),transparent 0%,#3b0764 5%,var(--violet) 15%,#4c1d95 30%,transparent 40%,transparent 100%) border-box;border:1px solid transparent;box-shadow:inset 0 0 0 1px rgba(232,232,236,.08);cursor:pointer;isolation:isolate;transition:transform .5s cubic-bezier(.25,1,.5,1),box-shadow .5s;animation:snSpin 3.4s linear infinite;display:inline-flex;align-items:center;gap:10px}
.btn-shiny::after{content:'→';font-size:14px;letter-spacing:0;transition:transform .3s}
.btn-shiny:hover{transform:scale(1.03);box-shadow:0 0 30px rgba(168,85,247,.4),inset 0 0 0 1px rgba(232,232,236,.18)}
.btn-shiny:hover::after{transform:translateX(3px)}
@keyframes snSpin{to{--sn-angle:360deg}}
.btn-ghost{display:inline-flex;align-items:center;gap:8px;padding:14px 24px;border:1px solid var(--rule);color:var(--paper);font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;transition:border-color .3s,background .3s}
.btn-ghost:hover{border-color:var(--rule-hi);background:rgba(232,232,236,.04)}

/* Breadcrumb */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--ff-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--paper-dim)}
.crumbs a{color:var(--paper-mute);transition:color .2s}
.crumbs a:hover{color:var(--violet)}
.crumbs .sep{color:var(--paper-dim)}
.crumbs .cur{color:var(--paper)}

/* Blog hero (menor que a hero da home) */
.blog-hero{position:relative;padding:170px 0 72px;border-bottom:1px solid var(--rule);isolation:isolate;overflow:hidden}
.blog-hero::before{content:'';position:absolute;top:-30%;right:-10%;width:520px;height:520px;background:radial-gradient(circle,rgba(168,85,247,.22) 0%,transparent 65%);filter:blur(20px);pointer-events:none;z-index:-1}
.blog-hero .crumbs{margin-bottom:28px}
.blog-hero h1{font-size:clamp(34px,5.2vw,64px);letter-spacing:-.04em;line-height:1.02;margin-bottom:20px}
.blog-hero h1 em{font-style:normal;background:linear-gradient(180deg,#fff 0%,#c4b5fd 45%,#7c3aed 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.blog-hero .lead{max-width:640px;color:var(--paper-mute);font-weight:300;font-size:16.5px;line-height:1.65}
.blog-hero .lead b{color:var(--paper);font-weight:500}
.blog-hero .tag{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;margin-bottom:20px;border:1px solid var(--rule);border-radius:999px;font-family:var(--ff-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--violet)}
.blog-hero .tag .dot{width:5px;height:5px;background:var(--violet);border-radius:50%}

/* Section shell */
.sec{position:relative;padding:96px 0;border-bottom:1px solid var(--rule)}
.sec:last-of-type{border-bottom:0}
.sec-head{margin-bottom:44px;max-width:760px}
.sec-head .num{font-family:var(--ff-mono);font-size:10px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--paper-dim);margin-bottom:12px}
.sec-head .title{font-family:var(--ff-display);font-size:clamp(26px,3vw,38px);letter-spacing:-.028em;line-height:1.1;font-weight:400;color:var(--paper);margin-bottom:14px}
.sec-head .title em{font-style:normal;color:var(--paper-mute)}
.sec-head .kicker{font-size:15px;color:var(--paper-mute);font-weight:300;line-height:1.6;max-width:64ch}
@media(max-width:820px){.sec{padding:64px 0}}

/* Cluster / post cards */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card-grid.two{grid-template-columns:repeat(2,1fr)}
.pcard{border:1px solid var(--rule);background:rgba(13,13,22,.4);padding:36px 32px;display:flex;flex-direction:column;gap:16px;position:relative;overflow:hidden;transition:border-color .3s,background .3s}
.pcard.live:hover{border-color:rgba(168,85,247,.35);background:rgba(13,13,22,.7)}
.pcard::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--violet-deep),var(--violet));opacity:0;transition:opacity .3s}
.pcard.live:hover::before{opacity:1}
.pcard .kicker-tag{font-family:var(--ff-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--violet);display:flex;align-items:center;gap:8px}
.pcard .kicker-tag::before{content:'';width:5px;height:5px;background:var(--violet);border-radius:50%}
.pcard .kicker-tag.soon{color:var(--paper-dim)}
.pcard .kicker-tag.soon::before{background:var(--paper-dim)}
.pcard h3{font-size:21px;font-weight:400;letter-spacing:-.02em;line-height:1.2;color:var(--paper)}
.pcard p{font-size:14px;color:var(--paper-mute);font-weight:300;line-height:1.6;flex:1}
.pcard .goto{align-self:flex-start;color:var(--violet);font-size:12px;font-weight:600;letter-spacing:.06em;display:inline-flex;align-items:center;gap:6px;transition:transform .3s}
.pcard .goto:hover{transform:translateX(4px)}
.pcard.soon{opacity:.55}
@media(max-width:960px){.card-grid,.card-grid.two{grid-template-columns:1fr}}

/* Featured post (destaque no hub) */
.featured{border:1px solid var(--rule);background:rgba(13,13,22,.4);padding:48px;display:flex;flex-direction:column;gap:20px;position:relative}
.featured::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--violet-deep),var(--violet))}
.featured .badge{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;padding:5px 12px;border:1px solid var(--rule);border-radius:999px;font-family:var(--ff-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--violet)}
.featured .badge .dot{width:5px;height:5px;background:var(--violet);border-radius:50%}
.featured h3{font-size:clamp(24px,2.6vw,34px);font-weight:400;letter-spacing:-.025em;line-height:1.15;max-width:24ch}
.featured p{font-size:15px;color:var(--paper-mute);font-weight:300;line-height:1.65;max-width:64ch}
.featured .goto{align-self:flex-start;margin-top:4px;color:var(--violet);font-size:12.5px;font-weight:600;letter-spacing:.06em;display:inline-flex;align-items:center;gap:6px;transition:transform .3s}
.featured .goto:hover{transform:translateX(4px)}

/* Article body */
.article{padding:0 0 40px}
.article .meta{display:flex;flex-wrap:wrap;gap:16px;align-items:center;font-family:var(--ff-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--paper-dim);margin-bottom:8px}
.article .meta .cluster-tag{color:var(--violet)}
.article-body{max-width:740px}
.article-body p{font-size:16.5px;font-weight:300;line-height:1.75;color:var(--paper-mute);margin-bottom:22px}
.article-body p b,.article-body li b{color:var(--paper);font-weight:500}
.article-body h2{font-size:clamp(24px,2.6vw,32px);font-weight:400;letter-spacing:-.025em;line-height:1.2;color:var(--paper);margin:56px 0 20px}
.article-body h3{font-size:20px;font-weight:500;letter-spacing:-.015em;color:var(--paper);margin:32px 0 14px}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px}
.article-body li{font-size:16px;font-weight:300;line-height:1.7;color:var(--paper-mute);margin-bottom:10px}
.article-body li b{color:var(--paper)}
.article-body a{color:var(--violet);text-decoration:underline;text-decoration-color:rgba(168,85,247,.35);text-underline-offset:3px}
.article-body a:hover{text-decoration-color:var(--violet)}
.article-body blockquote{border-left:2px solid var(--violet);padding:4px 0 4px 24px;margin:0 0 26px;color:var(--paper);font-size:18px;font-weight:300;font-family:var(--ff-display);letter-spacing:-.01em;line-height:1.45}
.article-cta{margin-top:8px;border:1px solid var(--rule);background:rgba(13,13,22,.4);padding:36px 40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.article-cta .txt{max-width:52ch}
.article-cta h4{font-size:20px;font-weight:400;letter-spacing:-.02em;color:var(--paper);margin-bottom:8px}
.article-cta p{font-size:13.5px;color:var(--paper-mute);font-weight:300;line-height:1.6}

/* FAQ (mesmo padrão da home, largura total) */
.faq-list{border-top:1px solid var(--rule);max-width:740px}
.faq-list details{border-bottom:1px solid var(--rule)}
.faq-list summary{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 4px;font-size:16px;font-weight:500;color:var(--paper);cursor:pointer;list-style:none;letter-spacing:-.01em}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary .plus{font-family:var(--ff-mono);font-size:13px;color:var(--paper-dim);transition:transform .3s;flex-shrink:0}
.faq-list details[open] summary .plus{transform:rotate(45deg);color:var(--violet)}
.faq-list .ans{padding:0 4px 22px;color:var(--paper-mute);font-size:14.5px;font-weight:300;line-height:1.65;max-width:68ch}

/* Footer (idêntico à home) */
footer{padding:100px 0 40px;position:relative;overflow:hidden}
.foot-top{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:56px}
.foot-big{font-family:var(--ff-display);font-size:clamp(48px,11vw,170px);font-weight:500;line-height:.82;letter-spacing:-.06em;user-select:none;white-space:nowrap;background:linear-gradient(180deg,var(--paper) 0%,rgba(59,7,100,.6) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;transition:opacity .5s}
.foot-big:hover{opacity:.7}
.foot-right{text-align:right;display:flex;flex-direction:column;gap:8px;padding-bottom:14px}
.foot-right a{color:var(--paper-mute);font-size:17px;transition:color .2s}
.foot-right a:hover{color:var(--violet)}
.foot-right .tag{font-family:var(--ff-mono);font-size:11px;color:var(--paper-dim);letter-spacing:.1em;text-transform:uppercase}
.foot-bot{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;border-top:1px solid var(--rule);padding-top:36px}
.foot-col h4{font-family:var(--ff-mono);font-size:10px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--paper-dim);margin-bottom:16px}
.foot-col a{display:block;color:var(--paper-mute);font-size:13.5px;margin:0 0 8px;transition:color .2s}
.foot-col a:hover{color:var(--paper)}
.foot-stat{text-align:right;grid-column:3/5}
.foot-stat .l{font-family:var(--ff-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--paper-dim);margin-bottom:6px}
.foot-stat .l b{color:var(--success);font-weight:500}
@media(max-width:760px){.foot-top{flex-direction:column;align-items:stretch}.foot-right{text-align:left;align-items:flex-start}.foot-bot{grid-template-columns:repeat(2,1fr);gap:24px}.foot-stat{grid-column:1/3;text-align:left}}

/* ═══════════════════════════════════════════════════════════
   Banner gráfico do artigo (topo) — SVG no tema, sem imagem externa
   ═══════════════════════════════════════════════════════════ */
.blog-banner{position:relative;margin-top:38px;height:230px;border:1px solid var(--rule);border-radius:14px;overflow:hidden;background:linear-gradient(120deg,#0b0b16 0%,#0d0d1a 52%,#120a26 100%);isolation:isolate}
.blog-banner .bb-grid{position:absolute;inset:0;background-size:34px 34px;background-image:linear-gradient(to right,rgba(232,232,236,.035) 1px,transparent 1px),linear-gradient(to bottom,rgba(232,232,236,.035) 1px,transparent 1px);-webkit-mask-image:radial-gradient(ellipse 85% 95% at 32% 50%,#000 28%,transparent 76%);mask-image:radial-gradient(ellipse 85% 95% at 32% 50%,#000 28%,transparent 76%)}
.blog-banner .bb-glow{position:absolute;border-radius:50%;filter:blur(32px);pointer-events:none}
.blog-banner .bb-glow.a{width:300px;height:300px;top:-130px;right:5%;background:radial-gradient(circle,rgba(168,85,247,.42),transparent 66%)}
.blog-banner .bb-glow.b{width:260px;height:260px;bottom:-150px;left:10%;background:radial-gradient(circle,rgba(83,58,253,.36),transparent 66%)}
.blog-banner svg.bb-flow{position:absolute;inset:0;width:100%;height:100%;z-index:1}
.blog-banner .bb-dash{stroke-dasharray:6 8;animation:bbFlow 3.6s linear infinite}
@keyframes bbFlow{to{stroke-dashoffset:-140}}
.blog-banner .bb-label{position:absolute;left:28px;bottom:22px;display:flex;align-items:center;gap:10px;font-family:var(--ff-mono);font-size:10px;letter-spacing:.15em;text-transform:uppercase;color:var(--paper-mute);z-index:2}
.blog-banner .bb-label .k{color:var(--violet);font-size:8px}
@media(max-width:600px){.blog-banner{height:170px;margin-top:30px}.blog-banner .bb-label{left:20px;bottom:16px;font-size:9px}}

/* ═══════════════════════════════════════════════════════════
   Layout do artigo com ToC lateral (direita) + scroll-spy
   ═══════════════════════════════════════════════════════════ */
.article-layout{display:grid;grid-template-columns:minmax(0,740px) 216px;justify-content:center;gap:64px;max-width:1120px;margin:0 auto}
.article-body h2{scroll-margin-top:104px}
.toc{position:sticky;top:118px;align-self:start;max-height:calc(100vh - 150px);overflow-y:auto;padding-bottom:20px}
.toc .toc-h{font-family:var(--ff-mono);font-size:10px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--paper-dim);margin-bottom:16px;padding-left:15px}
.toc ul{border-left:1px solid var(--rule);display:flex;flex-direction:column;list-style:none}
.toc a{display:block;padding:8px 0 8px 15px;margin-left:-1px;border-left:1px solid transparent;font-size:12.5px;line-height:1.4;color:var(--paper-dim);font-weight:400;letter-spacing:-.005em;transition:color .2s,border-color .2s}
.toc a:hover{color:var(--paper-mute)}
.toc a.active{color:var(--paper);border-left-color:var(--violet)}
@media(max-width:1080px){.article-layout{grid-template-columns:1fr;max-width:740px;gap:0}.toc{display:none}}

/* ═══════════════════════════════════════════════════════════
   Mini-CTAs inline (no meio do conteúdo)
   ═══════════════════════════════════════════════════════════ */
.inline-cta{margin:36px 0;border:1px solid var(--rule);border-left:2px solid var(--violet);background:rgba(83,58,253,.06);padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;border-radius:0 10px 10px 0}
.inline-cta .t{font-size:14.5px;font-weight:300;color:var(--paper-mute);letter-spacing:-.005em;max-width:48ch;line-height:1.55}
.inline-cta .t b{color:var(--paper);font-weight:500}
.inline-cta .btn-shiny{flex-shrink:0}
@media(max-width:600px){.inline-cta{flex-direction:column;align-items:flex-start;gap:14px}}

@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}html{scroll-behavior:auto}}