:root{
  --bg:#FFFFFF; --surface:#FFFFFF; --surface-2:#F6F8FB; --surface-3:#EEF2F8;
  --border:#E7EAF0; --border-2:#D7DDE7;
  --accent:#2563EB; --accent-2:#1D4ED8; --accent-soft:#EFF4FF;
  --text:#0F172A; --text-body:#334155; --muted:#64748B; --muted-2:#94A3B8;
  --topbar-bg:rgba(255,255,255,.85); --hero-bg:linear-gradient(180deg,#F8FAFF,#FFFFFF); --tip-text:#1E3A8A;
  --radius:14px; --maxw:1080px;
  --shadow:0 1px 2px rgba(15,23,42,.04),0 1px 3px rgba(15,23,42,.06);
  --shadow-lg:0 12px 40px rgba(15,23,42,.12);
  --font:'SF Pro Display','SF Pro Text',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
}
[data-theme="dark"]{
  --bg:#0A0D16; --surface:#10141F; --surface-2:#141A28; --surface-3:#171E2E;
  --border:#1B2333; --border-2:#26314A;
  --accent:#3B82F6; --accent-2:#60A5FA; --accent-soft:rgba(59,130,246,.14);
  --text:#F1F4FA; --text-body:#C4CEDD; --muted:#8B96AC; --muted-2:#6B7588;
  --topbar-bg:rgba(10,13,22,.82); --hero-bg:#0A0D16; --tip-text:#D6DEF0;
  --shadow:none; --shadow-lg:0 18px 50px rgba(0,0,0,.55);
}
*{box-sizing:border-box;margin:0;padding:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:-999px;top:8px;z-index:200;background:var(--accent);color:#fff;padding:8px 14px;border-radius:8px;font-size:13px;font-family:var(--font)}
.skip:focus{left:12px}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;letter-spacing:-0.011em}
a{color:inherit;text-decoration:none}
svg{display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* top bar */
header.topbar{position:sticky;top:0;z-index:60;background:var(--topbar-bg);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--border)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:62px;gap:18px}
.logo{display:flex;align-items:center;gap:11px;cursor:pointer;min-height:44px}
.logo .brand{height:23px;width:auto}
.brand-dark{display:none}
[data-theme="dark"] .brand-light{display:none}
[data-theme="dark"] .brand-dark{display:block}
.themebtn{position:relative;display:inline-grid;place-items:center;width:36px;height:36px;border-radius:9px;border:1px solid var(--border-2);background:var(--surface);color:var(--muted);cursor:pointer;transition:.15s;flex-shrink:0}
.themebtn:hover{color:var(--text);border-color:var(--muted-2)}
.themebtn svg{width:16px;height:16px;position:absolute}
.themebtn .i-sun{display:none}
[data-theme="dark"] .themebtn .i-moon{display:none}
[data-theme="dark"] .themebtn .i-sun{display:block}
.logo .div{width:1px;height:18px;background:var(--border-2)}
.logo .sub{color:var(--muted);font-weight:400;font-size:15px;letter-spacing:-0.02em}
.topbar .right{display:flex;align-items:center;gap:10px}
.hsearch{position:relative;width:230px;margin:0}
.hsearch input{width:100%;padding:8px 12px 8px 34px;font-size:13.5px;font-family:var(--font);border-radius:9px;background:var(--surface-2);border:1px solid var(--border);color:var(--text);outline:none;transition:.15s}
.hsearch input:focus{border-color:var(--accent);background:var(--surface);box-shadow:0 0 0 3px var(--accent-soft)}
.hsearch>svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--muted-2)}
.btn{display:inline-flex;align-items:center;gap:7px;padding:8px 15px;border-radius:9px;font-size:13.5px;font-weight:500;font-family:var(--font);border:1px solid var(--border-2);cursor:pointer;transition:.15s;background:var(--surface);color:var(--text);letter-spacing:-0.01em;white-space:nowrap}
.btn:hover{background:var(--surface-2);border-color:var(--muted-2)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-2)}
.btn svg{width:15px;height:15px}
.btn.ghost{background:transparent;border-color:var(--border-2);color:var(--muted)}
.btn.ghost:hover{color:var(--text);background:var(--surface-2);border-color:var(--muted-2)}
.langbtn{display:inline-flex;align-items:center;gap:5px;height:36px;padding:0 11px;border-radius:9px;border:1px solid var(--border-2);background:var(--surface);color:var(--muted);font-size:12.5px;font-weight:600;letter-spacing:.02em;cursor:pointer;transition:.15s;flex-shrink:0;text-decoration:none}
.langbtn:hover{color:var(--text);border-color:var(--muted-2)}
.langbtn svg{width:15px;height:15px}

/* search dropdown */
.results{position:absolute;top:calc(100% + 8px);left:0;right:0;background:var(--surface);border:1px solid var(--border-2);border-radius:12px;box-shadow:var(--shadow-lg);overflow:hidden;display:none;z-index:80;max-height:60vh;overflow-y:auto;text-align:left}
.results.show{display:block}
.results .ri{display:flex;gap:11px;align-items:flex-start;padding:11px 14px;border-bottom:1px solid var(--border);cursor:pointer;transition:.12s;color:var(--text)}
.results .ri:last-child{border-bottom:none}
.results .ri:hover{background:var(--surface-2)}
.results .ri .ic{width:30px;height:30px;border-radius:8px;flex-shrink:0;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent)}
.results .ri .ic svg{width:15px;height:15px}
.results .ri h4{font-size:13.5px;font-weight:550;letter-spacing:-0.01em}
.results .ri p{font-size:12px;color:var(--muted);margin-top:1px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.results .ri .cat{font-size:11px;color:var(--muted-2);margin-top:3px;display:block}
.results .empty{padding:20px 16px;color:var(--muted);font-size:13.5px;text-align:center}

/* hero */
.hero{position:relative;z-index:30;text-align:center;padding:80px 24px 60px;border-bottom:1px solid var(--border);background:var(--hero-bg)}
.hero::before{content:"";position:absolute;inset:0;z-index:0;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:46px 46px;background-position:center;-webkit-mask-image:radial-gradient(ellipse 70% 80% at 50% 0%,#000 25%,transparent 72%);mask-image:radial-gradient(ellipse 70% 80% at 50% 0%,#000 25%,transparent 72%);opacity:.6}
.hero .inner{position:relative;z-index:1;max-width:680px;margin:0 auto}
.eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:500;color:var(--muted);border:1px solid var(--border-2);background:var(--surface);padding:5px 12px;border-radius:999px;margin-bottom:22px;box-shadow:var(--shadow)}
.eyebrow svg{width:13px;height:13px;color:var(--accent)}
.hero h1{font-size:42px;line-height:1.08;font-weight:600;letter-spacing:-0.035em}
.hero p{color:var(--muted);font-size:16.5px;margin-top:14px;font-weight:400}
.bigsearch{margin:32px auto 0;max-width:560px;position:relative;z-index:40}
.bigsearch input{width:100%;padding:15px 16px 15px 46px;font-size:15px;font-family:var(--font);border-radius:12px;background:var(--surface);border:1px solid var(--border-2);color:var(--text);outline:none;transition:.15s;box-shadow:var(--shadow)}
.bigsearch input::placeholder{color:var(--muted-2)}
.bigsearch input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.bigsearch>svg{position:absolute;left:16px;top:23px;transform:translateY(-50%);width:18px;height:18px;color:var(--muted-2)}
.quick{margin-top:14px;display:flex;gap:7px;justify-content:center;flex-wrap:wrap;align-items:center;position:relative;z-index:1}
.quick .lbl{font-size:12.5px;color:var(--muted-2)}
.chip{font-size:12.5px;color:var(--muted);border:1px solid var(--border-2);background:var(--surface);padding:4px 11px;border-radius:7px;cursor:pointer;transition:.15s}
.chip:hover{border-color:var(--accent);color:var(--accent)}

/* section heads */
.shead{display:flex;align-items:baseline;justify-content:space-between;margin:0 0 16px}
.shead h2{font-size:18px;font-weight:600;letter-spacing:-0.025em}
.shead .small{font-size:13px;color:var(--muted-2)}

/* category grid */
section.block{padding:44px 0}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.grid .cat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;cursor:pointer;transition:.16s;display:flex;flex-direction:column;gap:13px;color:var(--text);box-shadow:var(--shadow)}
.grid .cat:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 6px 18px rgba(37,99,235,.1)}
.grid .cat .top{display:flex;gap:13px;align-items:center}
.grid .cat .ic{width:40px;height:40px;border-radius:10px;flex-shrink:0;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent)}
.grid .cat .ic svg{width:19px;height:19px}
.grid .cat h3{font-size:15px;font-weight:600;letter-spacing:-0.02em}
.grid .cat .desc{color:var(--muted);font-size:13px;line-height:1.5}
.grid .cat .count{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--muted-2);margin-top:auto}
.grid .cat .count svg{width:13px;height:13px}

/* popular */
.plist{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.prow{display:flex;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--border);border-radius:11px;padding:14px 16px;cursor:pointer;transition:.14s;color:var(--text)}
.prow:hover{border-color:var(--accent);background:var(--surface-2)}
.prow .ic{width:32px;height:32px;border-radius:8px;flex-shrink:0;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent)}
.prow .ic svg{width:15px;height:15px}
.prow h4{font-size:13.8px;font-weight:500;letter-spacing:-0.01em}
.prow .cat{font-size:11.5px;color:var(--muted-2);margin-top:1px;display:block}
.prow .arr{margin-left:auto;color:var(--muted-2);width:16px;height:16px;flex-shrink:0}

/* cta */
.cta{margin:24px 0 0;background:var(--surface-2);border:1px solid var(--border);border-radius:16px;padding:30px 34px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta h2{font-size:18px;font-weight:600;letter-spacing:-0.025em}
.cta p{color:var(--muted);margin-top:5px;font-size:14px}
.cta .row{display:flex;gap:10px;flex-wrap:wrap}

/* breadcrumb */
.crumb{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--muted);padding:26px 0 6px;flex-wrap:wrap}
.crumb a:hover{color:var(--accent)}
.crumb svg{width:14px;height:14px;color:var(--muted-2)}
.crumb .cur{color:var(--text)}

/* category page */
.cathead{display:flex;gap:16px;align-items:center;padding:14px 0 26px;border-bottom:1px solid var(--border);margin-bottom:22px}
.cathead .ic{width:52px;height:52px;border-radius:13px;flex-shrink:0;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent)}
.cathead .ic svg{width:24px;height:24px}
.cathead h1{font-size:26px;font-weight:600;letter-spacing:-0.03em}
.cathead p{color:var(--muted);font-size:14.5px;margin-top:3px}
.arts{display:flex;flex-direction:column;gap:9px;padding-bottom:60px}
.artrow{display:flex;align-items:center;gap:14px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:17px 18px;cursor:pointer;transition:.14s;color:var(--text);box-shadow:var(--shadow)}
.artrow:hover{border-color:var(--accent);background:var(--surface-2)}
.artrow .ic{width:36px;height:36px;border-radius:9px;flex-shrink:0;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent)}
.artrow .ic svg{width:17px;height:17px}
.artrow .txt{flex:1;min-width:0}
.artrow h3{font-size:17.5px;font-weight:600;letter-spacing:-0.015em}
.artrow p{font-size:13px;color:var(--muted);margin-top:2px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.artrow .scope{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);border:1px solid var(--border-2);border-radius:999px;padding:3px 10px;white-space:nowrap;flex-shrink:0}
.artrow .scope svg{width:14px;height:14px}
.artrow .arr{color:var(--muted-2);width:18px;height:18px;flex-shrink:0;transition:.14s}
.artrow:hover .arr{color:var(--accent);transform:translateX(2px)}
/* filtro Nacional/Global */
.filterbar{display:flex;gap:8px;margin:0 0 16px;flex-wrap:wrap}
.fil{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:9px;border:1px solid var(--border-2);background:var(--surface);color:var(--muted);font-family:var(--font);font-size:13.5px;font-weight:500;cursor:pointer;transition:.14s}
.fil:hover{color:var(--text);border-color:var(--muted-2)}
.fil.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
.fil svg{width:15px;height:15px}
/* vídeo responsivo */
.videowrap{max-width:520px;margin:0 0 22px}
.video{position:relative;aspect-ratio:16/9;width:100%;border-radius:12px;overflow:hidden;border:1px solid var(--border);background:#000;margin:0}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* article */
.alayout{display:grid;grid-template-columns:1fr 280px;gap:44px;align-items:start;padding-bottom:70px}
.alayout>article,.alayout>aside{min-width:0}
article.doc h1{font-size:30px;font-weight:600;letter-spacing:-0.03em;line-height:1.18;overflow-wrap:break-word}
article.doc .meta{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;margin:14px 0 26px}
article.doc .meta svg{width:15px;height:15px}
article.doc .meta .dot{width:3px;height:3px;border-radius:50%;background:var(--muted-2)}
article.doc .content{font-size:16px;color:var(--text-body);line-height:1.75;overflow-wrap:break-word}
article.doc .content p{margin-bottom:15px}
article.doc .content h2{font-size:20px;color:var(--text);font-weight:600;letter-spacing:-0.02em;margin:32px 0 12px;scroll-margin-top:84px}
article.doc .content ul,article.doc .content ol{margin:12px 0 16px 20px}
article.doc .content li{margin-bottom:8px}
article.doc .content li::marker{color:var(--muted-2)}
article.doc .content strong{color:var(--text);font-weight:600}
article.doc .content em{color:var(--accent-2);font-style:normal;background:var(--accent-soft);padding:1px 6px;border-radius:5px;font-size:14px}
article.doc .content a.lk{color:var(--accent);font-weight:500}
article.doc .content a.lk:hover{text-decoration:underline}
article.doc .content code{background:var(--surface-3);border:1px solid var(--border);padding:1px 6px;border-radius:5px;font-size:13.5px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
article.doc .content pre{background:#1e1e2a;border:1px solid var(--border);border-radius:11px;padding:16px 18px;margin:16px 0;overflow-x:auto;font-size:13px;line-height:1.55}
article.doc .content pre code{background:none;border:none;padding:0;border-radius:0;font-size:13px;color:#e7e7ef;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre}
article.doc .content table{width:100%;table-layout:fixed;border-collapse:collapse;margin:16px 0;font-size:14px}
article.doc .content th,article.doc .content td{border:1px solid var(--border);padding:9px 13px;text-align:left;vertical-align:top;overflow-wrap:anywhere;word-break:normal}
article.doc .content th{background:var(--surface-2);font-weight:600;color:var(--text)}
article.doc .content td code,article.doc .content th code{font-size:13px;overflow-wrap:anywhere}
article.doc .content figure{margin:18px 0}
article.doc .content figure svg{display:block;width:100%;height:auto;border-radius:14px;border:1px solid var(--border);background:#fff}
article.doc .content figcaption{font-size:13px;color:var(--muted);margin-top:9px;line-height:1.55}
.tip{display:flex;gap:10px;border:1px solid var(--border-2);background:var(--accent-soft);padding:13px 15px;border-radius:11px;margin:18px 0;font-size:14px;color:var(--tip-text)}
.tip svg{width:16px;height:16px;flex-shrink:0;margin-top:2px;color:var(--accent)}
.feedback{margin-top:36px;padding:20px;border:1px solid var(--border);border-radius:13px;background:var(--surface-2);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.feedback span{font-size:14px;font-weight:500}
.feedback .btns{display:flex;gap:9px}
.fbtn{display:inline-flex;align-items:center;gap:7px;padding:8px 16px;border-radius:9px;border:1px solid var(--border-2);background:var(--surface);color:var(--text);font-family:var(--font);font-size:13.5px;cursor:pointer;transition:.14s}
.fbtn:hover{background:var(--surface-2);border-color:var(--muted-2)}
.fbtn.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
.fbtn svg{width:15px;height:15px}

/* aside */
aside.side{position:sticky;top:84px;display:flex;flex-direction:column;gap:18px}
/* índice "Neste artigo" */
.toc{display:flex;flex-direction:column;border-left:2px solid var(--border)}
.toc .sh{font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--muted-2);padding:0 0 10px 16px}
.toc a{display:block;padding:7px 0 7px 16px;margin-left:-2px;border-left:2px solid transparent;color:var(--muted);font-size:13.5px;line-height:1.45;transition:.13s}
.toc a:hover{color:var(--text)}
.toc a.active{color:var(--accent);border-left-color:var(--accent);font-weight:500}
.scard{background:var(--surface);border:1px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.scard .sh{padding:14px 16px 10px;font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--muted-2)}
.rel{display:block;padding:12px 16px;border-top:1px solid var(--border);cursor:pointer;transition:.13s;color:var(--text)}
.rel:hover{background:var(--surface-2)}
.rel h3{font-size:13.5px;font-weight:500;letter-spacing:-0.01em;display:flex;gap:9px;align-items:flex-start;line-height:1.4}
.rel h3 svg{width:14px;height:14px;color:var(--accent);flex-shrink:0;margin-top:3px}
.rel .c{font-size:11.5px;color:var(--muted-2);margin:3px 0 0 23px;display:block}
.supportcard{background:var(--surface-2);border:1px solid var(--border);border-radius:14px;padding:18px}
.supportcard h2{font-size:14.5px;font-weight:600;letter-spacing:-0.02em}
.supportcard p{font-size:13px;color:var(--muted);margin:5px 0 13px}
.supportcard .btn{width:100%;justify-content:center}

/* footer */
footer{border-top:1px solid var(--border);padding:26px 0;color:var(--muted);font-size:13px;background:var(--surface-2)}
footer .wrap{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}
footer .flinks{display:flex;gap:16px;flex-wrap:wrap}
footer .flinks a{color:var(--muted);transition:.14s}
footer .flinks a:hover{color:var(--accent)}

@media(max-width:860px){
  .grid,.plist{grid-template-columns:1fr}
  .alayout{grid-template-columns:1fr}
  aside.side{position:static;order:2}
  .toc{order:-1}
  .hsearch{display:none}
  .applink span{display:none}
  .applink{padding:0;width:36px;height:36px;justify-content:center}
  .hero h1{font-size:31px}
  .cta{flex-direction:column;align-items:flex-start}
}
@media(max-width:560px){
  .topbar .right{gap:7px}
  .applink,.langbtn span{display:none}
  .logo .sub,.logo .div{display:none}
  .wrap{padding:0 16px}
  article.doc h1{font-size:24px}
  article.doc .content{font-size:15.5px}
  article.doc .content h2{font-size:18px;margin:26px 0 10px}
  article.doc .content pre{padding:13px 14px;font-size:12px;border-radius:9px}
  article.doc .content pre code{font-size:12px}
  article.doc .content table{font-size:13px}
  article.doc .content th,article.doc .content td{padding:7px 9px}
  .feedback{padding:16px}
  .feedback .btns{flex-wrap:wrap}
}

/* Entrada suave da página inicial */
@keyframes cf-rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.home .hero .eyebrow,.home .hero h1,.home .hero>.inner>p,.home .bigsearch,.home .quick,
.home .block .shead,.home .grid .cat,.home .plist .prow,.home .cta{
  opacity:0;animation:cf-rise .55s cubic-bezier(.22,.61,.36,1) both}
.home .hero .eyebrow{animation-delay:.02s}
.home .hero h1{animation-delay:.08s}
.home .hero>.inner>p{animation-delay:.14s}
.home .bigsearch{animation-delay:.20s}
.home .quick{animation-delay:.28s}
.home .block .shead{animation-delay:.34s}
.home .plist .prow:nth-child(1){animation-delay:.38s}
.home .plist .prow:nth-child(2){animation-delay:.42s}
.home .plist .prow:nth-child(3){animation-delay:.46s}
.home .plist .prow:nth-child(4){animation-delay:.50s}
.home .plist .prow:nth-child(5){animation-delay:.54s}
.home .plist .prow:nth-child(n+6){animation-delay:.58s}
.home .grid .cat:nth-child(1){animation-delay:.50s}
.home .grid .cat:nth-child(2){animation-delay:.54s}
.home .grid .cat:nth-child(3){animation-delay:.58s}
.home .grid .cat:nth-child(4){animation-delay:.62s}
.home .grid .cat:nth-child(5){animation-delay:.66s}
.home .grid .cat:nth-child(6){animation-delay:.70s}
.home .grid .cat:nth-child(7){animation-delay:.74s}
.home .grid .cat:nth-child(8){animation-delay:.78s}
.home .grid .cat:nth-child(n+9){animation-delay:.82s}
.home .cta{animation-delay:.80s}
@media (prefers-reduced-motion:reduce){
  .home .hero .eyebrow,.home .hero h1,.home .hero>.inner>p,.home .bigsearch,.home .quick,
  .home .block .shead,.home .grid .cat,.home .plist .prow,.home .cta{
    opacity:1;animation:none}
}