:root{
  --bg:#071018;
  --bg2:#0b1621;
  --panel:#0f1c28;
  --panel2:#132333;
  --line:#203546;
  --text:#f4f8fb;
  --muted:#91a6b7;
  --brand:#53e2a3;
  --brand2:#66a7ff;
  --warn:#ffcc6e;
  --danger:#ff7b8b;
  --shadow:0 24px 70px rgba(0,0,0,.28);
  --radius:18px;
  --max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:
  radial-gradient(circle at 15% 0%,rgba(83,226,163,.10),transparent 28rem),
  radial-gradient(circle at 85% 8%,rgba(102,167,255,.09),transparent 28rem),
  var(--bg);
  color:var(--text);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  line-height:1.6
}
a{text-decoration:none;color:inherit}
button,input{font:inherit}
.container{width:min(calc(100% - 32px),var(--max));margin:auto}
.topbar{border-bottom:1px solid var(--line);background:rgba(7,16,24,.86);backdrop-filter:blur(18px);position:sticky;top:0;z-index:40}
.header{min-height:68px;display:flex;align-items:center;gap:22px}
.brand{display:flex;align-items:center;gap:11px;font-weight:900;letter-spacing:-.035em;white-space:nowrap}
.brand-logo{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--brand),#8af0c5);color:#071018;font:900 .95rem ui-monospace,monospace;box-shadow:0 10px 28px rgba(83,226,163,.16)}
.nav{display:flex;gap:5px;margin-left:10px}
.nav a{padding:9px 11px;border-radius:10px;color:#b5c5d1;font-size:.92rem;font-weight:750;transition:.18s}
.nav a:hover,.nav a.active{background:var(--panel2);color:var(--text)}
.header-search{margin-left:auto;position:relative;width:min(390px,34vw)}
.header-search input{width:100%;border:1px solid #29465b;background:#0c1823;color:var(--text);border-radius:12px;padding:11px 14px 11px 40px;outline:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.015)}
.header-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(83,226,163,.10)}
.search-glyph{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#7990a1}
.results{display:none;position:absolute;top:calc(100% + 8px);left:0;right:0;background:#0c1823;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.results.show{display:block}
.result{display:block;padding:12px 14px;border-bottom:1px solid var(--line)}
.result:last-child{border-bottom:0}.result:hover{background:var(--panel2)}
.result small{display:block;color:var(--muted);margin-top:2px}
.hero{padding:34px 0 18px}
.hero-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:center}
.kicker{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(83,226,163,.23);background:rgba(83,226,163,.08);padding:7px 10px;border-radius:999px;color:#96f0c9;font-size:.78rem;font-weight:850;text-transform:uppercase;letter-spacing:.08em}
.kicker-dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 5px rgba(83,226,163,.1)}
h1,h2,h3{line-height:1.1;letter-spacing:-.04em;margin-top:0}
h1{font-size:clamp(2.5rem,4.45vw,4.35rem);margin:14px 0 15px;max-width:690px}
.hero p{font-size:1.02rem;color:#a8bac7;max-width:610px;margin:0 0 16px}
.hero-actions{display:flex;gap:11px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid var(--line);background:var(--panel);color:var(--text);padding:12px 16px;border-radius:12px;font-weight:850;cursor:pointer;transition:.18s}
.btn:hover{transform:translateY(-1px);border-color:#416078;background:var(--panel2)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#071018}
.btn.primary:hover{background:#73eab6}
.hero-proof{display:flex;gap:14px;flex-wrap:wrap;margin-top:14px;color:#8fa4b3;font-size:.82rem}
.hero-proof b{color:#dbe7ef}
.code-window{border:1px solid var(--line);background:linear-gradient(180deg,#0f1e2b,#0b1621);border-radius:22px;overflow:hidden;box-shadow:var(--shadow);width:100%;max-width:610px;justify-self:end}
.window-top{height:44px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:7px;padding:0 16px;color:#72889a;font-size:.8rem}
.dot{width:9px;height:9px;border-radius:50%;background:#3a5264}.dot:nth-child(1){background:#ff7b8b}.dot:nth-child(2){background:#ffcc6e}.dot:nth-child(3){background:#53e2a3}
.file-name{margin-left:8px}
.code{margin:0;padding:19px 22px 21px;overflow:auto;color:#d8e6ef;font:500 .92rem/1.68 ui-monospace,SFMono-Regular,Menlo,monospace;background:#08131d}
.c1{color:#6f8799}.kw{color:#b69cff}.fn{color:#66d9ef}.str{color:#a7e58f}.var{color:#ffd17e}.num{color:#ff9fa8}
.code-status{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px;border-top:1px solid var(--line);color:var(--muted);font-size:.82rem}
.success{color:var(--brand);font-weight:800}
.quickbar{padding:0 0 12px}
.quickbar-inner{display:flex;align-items:center;gap:10px;overflow:auto;scrollbar-width:none}
.quickbar-inner::-webkit-scrollbar{display:none}
.quickbar-label{color:var(--muted);font-size:.86rem;font-weight:800;white-space:nowrap;margin-right:2px}
.chip{border:1px solid var(--line);background:#0c1823;color:#c9d8e2;padding:8px 11px;border-radius:999px;white-space:nowrap;font-size:.84rem;font-weight:700}
.chip:hover{border-color:#3d5c73;background:var(--panel2)}
.section{padding:52px 0}
.section.soft{background:rgba(255,255,255,.015);border-block:1px solid rgba(255,255,255,.045)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:18px}
.section-head h2{font-size:clamp(1.9rem,4vw,3rem);margin-bottom:9px}
.section-head p{margin:0;color:var(--muted)}
.link-arrow{color:#a9c2d3;font-weight:800;font-size:.9rem}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.problem-card{border:1px solid var(--line);background:linear-gradient(180deg,rgba(15,28,40,.92),rgba(11,22,33,.95));border-radius:18px;padding:20px;transition:.18s;position:relative;overflow:hidden}
.problem-card:hover{transform:translateY(-3px);border-color:#3d5c73;box-shadow:0 18px 48px rgba(0,0,0,.16)}
.problem-card:before{content:"";position:absolute;inset:0 auto auto 0;height:3px;width:100%;background:linear-gradient(90deg,var(--brand),var(--brand2));opacity:.8}
.meta-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.tag{display:inline-flex;align-items:center;padding:5px 8px;border-radius:999px;background:#16293a;color:#b7c9d5;font-size:.73rem;font-weight:850;text-transform:uppercase;letter-spacing:.06em}
.tag.green{background:rgba(83,226,163,.10);color:#91ecc5}.tag.blue{background:rgba(102,167,255,.11);color:#9dc5ff}.tag.yellow{background:rgba(255,204,110,.10);color:#ffdb96}
.problem-card h3{font-size:1.25rem;margin:16px 0 9px}
.problem-card p{margin:0;color:var(--muted);font-size:.95rem}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:20px;color:#7890a2;font-size:.82rem}
.card-foot strong{color:#cbd9e3}
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.category{border:1px solid var(--line);border-radius:18px;background:var(--panel);padding:22px;display:flex;flex-direction:column;min-height:220px;transition:.18s}
.category:hover{transform:translateY(-3px);border-color:#3d5c73}
.category-icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:#172a3b;border:1px solid #294257;font:900 .88rem ui-monospace,monospace;color:var(--brand)}
.category h3{margin:19px 0 8px;font-size:1.35rem}.category p{margin:0;color:var(--muted)}
.category .go{margin-top:auto;padding-top:20px;color:#d7e5ee;font-weight:850;font-size:.9rem}
.popular-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.popular-item{display:flex;gap:16px;align-items:flex-start;border:1px solid var(--line);background:#0c1823;border-radius:15px;padding:16px}
.rank{display:grid;place-items:center;min-width:34px;height:34px;border-radius:10px;background:#172a3b;color:#91a8b9;font-weight:900;font-size:.85rem}
.popular-item h3{font-size:1rem;margin:2px 0 5px;letter-spacing:-.02em}.popular-item p{margin:0;color:var(--muted);font-size:.86rem}
.cta{display:grid;grid-template-columns:1fr auto;align-items:center;gap:30px;border:1px solid rgba(83,226,163,.23);background:linear-gradient(135deg,rgba(83,226,163,.08),rgba(102,167,255,.05));border-radius:22px;padding:30px}
.cta h2{font-size:2rem;margin-bottom:8px}.cta p{margin:0;color:var(--muted);max-width:700px}
.footer{border-top:1px solid var(--line);padding:38px 0;color:var(--muted)}
.footer-inner{display:flex;justify-content:space-between;gap:24px;align-items:center}
.footer-links{display:flex;gap:16px;flex-wrap:wrap;font-size:.9rem}
.mobile-menu{display:none}
.article-hero{padding:54px 0 24px}
.article-layout{display:grid;grid-template-columns:minmax(0,820px) 250px;gap:48px;align-items:start}
.article h1{font-size:clamp(2.35rem,5vw,4.2rem);margin:14px 0 14px}
.article .lead{font-size:1.1rem;color:var(--muted);margin-bottom:26px}
.article h2{font-size:1.8rem;margin:42px 0 12px}.article h3{font-size:1.25rem;margin:30px 0 10px}
.article p,.article li{color:#c5d3dd}.article ul,.article ol{padding-left:22px}
.article pre{background:#08131d;border:1px solid var(--line);border-radius:15px;padding:20px;overflow:auto;color:#dce8f0;font:500 .9rem/1.7 ui-monospace,SFMono-Regular,Menlo,monospace}
.article code:not(pre code){background:#142637;border:1px solid #20384a;padding:2px 6px;border-radius:6px;color:#dce8f0}
.code-box{position:relative}.copy{position:absolute;right:10px;top:10px;background:#152839;border:1px solid #294257;color:#dbe7ef;border-radius:9px;padding:7px 10px;font-size:.78rem;cursor:pointer}
.breadcrumbs{color:#7790a3;font-size:.87rem;margin-bottom:14px}
.article-meta{display:flex;gap:10px;flex-wrap:wrap;color:#7890a2;font-size:.84rem;margin-bottom:24px}
.toc{position:sticky;top:96px;border-left:1px solid var(--line);padding-left:18px}.toc strong{display:block;margin-bottom:10px}.toc a{display:block;color:var(--muted);font-size:.88rem;padding:5px 0}.toc a:hover{color:var(--text)}
.notice{border:1px solid rgba(255,204,110,.23);background:rgba(255,204,110,.07);padding:16px 18px;border-radius:14px;color:#f4ddae;margin:24px 0}
.cat-hero{padding:60px 0 30px}.cat-hero h1{font-size:clamp(2.6rem,5vw,4.5rem);margin:14px 0}.cat-hero p{max-width:720px;color:var(--muted);font-size:1.08rem}

#resolver,#categorias,#populares{scroll-margin-top:84px}
:focus-visible{outline:3px solid rgba(83,226,163,.55);outline-offset:3px}
.mobile-menu{border:1px solid var(--line);background:#0c1823;color:#c9d8e2;border-radius:10px;width:40px;height:40px;align-items:center;justify-content:center;cursor:pointer}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#08131d;padding:12px 0 16px}
.mobile-panel.open{display:block}
.mobile-panel .mobile-links{display:grid;gap:4px;margin-bottom:12px}
.mobile-panel .mobile-links a{padding:10px 12px;border-radius:9px;color:#c5d3dd;font-weight:750}
.mobile-panel .mobile-links a:hover{background:var(--panel2);color:var(--text)}
.mobile-panel .header-search{display:block;width:100%;margin:0}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

@media(max-width:930px){
 .hero-grid,.article-layout{grid-template-columns:1fr}.toc{display:none}.grid3,.category-grid{grid-template-columns:1fr 1fr}
 .header-search{display:none}.nav{margin-left:auto}
}
@media(max-width:680px){
 .nav{display:none}.header{min-height:64px}.mobile-menu{display:inline-flex;margin-left:auto}
 .hero{padding:38px 0 24px}.hero-grid{gap:28px}
 .grid3,.category-grid,.popular-list{grid-template-columns:1fr}
 .section{padding:52px 0}.section-head,.footer-inner{align-items:flex-start;flex-direction:column}
 .cta{grid-template-columns:1fr;padding:24px}
 h1{font-size:2.65rem}
}


.version-badge{
  display:inline-flex;align-items:center;justify-content:center;
  margin-left:2px;padding:3px 7px;border:1px solid var(--line);
  border-radius:999px;background:#0c1823;color:#7f98aa;
  font:800 .68rem/1 ui-monospace,SFMono-Regular,Menlo,monospace;
  letter-spacing:.02em;white-space:nowrap
}
.footer-version{
  display:inline-flex;align-items:center;gap:5px;color:#7890a2
}
.footer-version code{
  border:1px solid var(--line);background:#0c1823;color:#9eb3c2;
  border-radius:7px;padding:3px 6px;font-size:.78rem
}
@media(max-width:680px){
  .version-badge{font-size:.62rem;padding:3px 6px}
}

.hero-title-line{display:block}
@media(min-width:931px){
  .hero-title-line.line-1{white-space:nowrap}
}
@media(max-width:930px){
  .code-window{max-width:none;justify-self:stretch}
}