/* IAlfabeto — portal de notícias e aprendizado de IA.
   Estética de terminal: fundo escuro, ciano como sinal, Kode Mono nos títulos, Atkinson no texto. */
:root{
  --bg:#0a0b0d; --bg-2:#0f1013; --panel:#14161a; --panel-2:#1b1e23; --fg:#f2f3f1; --muted:#9aa1a9;
  --line:rgba(242,243,241,.08); --line-2:rgba(242,243,241,.16); --cyan:#00d1ff; --cyan-ink:#22d6ff;
  --cyan-soft:rgba(0,209,255,.12); --on-cyan:#03121a; --ok:#3ddc97; --warn:#ffb454; --hot:#ff5f6d;
  --f-mono:"Kode Mono",ui-monospace,Consolas,monospace;
  --f-body:"Atkinson Hyperlegible","Segoe UI",system-ui,sans-serif;
  --s1:.25rem; --s2:.5rem; --s3:.75rem; --s4:1rem; --s5:1.5rem; --s6:2rem; --s7:3rem; --s8:5rem;
  --r:12px; --maxw:1240px; --cut:14px; color-scheme:dark;
}
@media (prefers-color-scheme: light){ :root:not([data-theme="dark"]){
  --bg:#f5f6f3; --bg-2:#eceee9; --panel:#ffffff; --panel-2:#eef0ec; --fg:#111214; --muted:#5b616a;
  --line:rgba(17,18,20,.09); --line-2:rgba(17,18,20,.18); --cyan:#00b8e0; --cyan-ink:#00728f;
  --cyan-soft:rgba(0,150,190,.10); --ok:#14894f; --warn:#a85a00; --hot:#c8283a; color-scheme:light } }
:root[data-theme="light"]{
  --bg:#f5f6f3; --bg-2:#eceee9; --panel:#ffffff; --panel-2:#eef0ec; --fg:#111214; --muted:#5b616a;
  --line:rgba(17,18,20,.09); --line-2:rgba(17,18,20,.18); --cyan:#00b8e0; --cyan-ink:#00728f;
  --cyan-soft:rgba(0,150,190,.10); --ok:#14894f; --warn:#a85a00; --hot:#c8283a; color-scheme:light }

/* Transição entre páginas (navegadores modernos) */
@view-transition{navigation:auto}
::view-transition-old(root){animation:vtOut .22s ease both}
::view-transition-new(root){animation:vtIn .38s cubic-bezier(.2,.8,.2,1) both}
@keyframes vtOut{to{opacity:0;transform:translateY(-8px);filter:blur(3px)}}
@keyframes vtIn{from{opacity:0;transform:translateY(14px);filter:blur(4px)}}
.top{view-transition-name:topo}
::view-transition-old(topo),::view-transition-new(topo){animation:none}
@media (prefers-reduced-motion:reduce){::view-transition-old(root),::view-transition-new(root){animation:none}}

*{box-sizing:border-box}
[hidden]{display:none !important}
html{scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:400 1.0625rem/1.62 var(--f-body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:70;background:var(--bg)}
a{color:inherit}
img{max-width:100%;display:block}
::selection{background:var(--cyan);color:var(--on-cyan)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.mono{font-family:var(--f-mono)}
.muted{color:var(--muted)}
h1,h2,h3,h4{font-family:var(--f-mono);letter-spacing:-.02em;text-wrap:balance}

/* barra de progresso ao trocar de página */
.prog{position:fixed;left:0;top:0;height:2px;width:100%;z-index:200;background:var(--cyan);box-shadow:0 0 12px var(--cyan);
  transform:scaleX(0);transform-origin:left;pointer-events:none;opacity:0}
.prog.on{opacity:1;animation:prog 1.2s cubic-bezier(.1,.7,.2,1) forwards}
@keyframes prog{to{transform:scaleX(.85)}}

/* ---------- Logo ---------- */
.logo{display:inline-flex;align-items:center;gap:.55rem;text-decoration:none;white-space:nowrap}
.logo svg{width:34px;height:34px;flex:none}
.logo .wm{font:600 1.22rem/1 var(--f-mono);letter-spacing:-.01em}
.logo .wm b{color:var(--cyan);font-weight:600}
.logo .cur{display:inline-block;width:.5em;height:.85em;background:currentColor;margin-left:.08em;border-radius:1px;vertical-align:-.08em;animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.mark-chev{animation:chev 3.2s ease-in-out infinite}
@keyframes chev{0%,70%,100%{transform:translateX(0)}80%{transform:translateX(1.5px)}}

/* ---------- Topo ---------- */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:60;background:color-mix(in srgb,var(--bg) 80%,transparent);
  backdrop-filter:blur(14px) saturate(1.3);-webkit-backdrop-filter:blur(14px) saturate(1.3);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:var(--s5);height:64px}
.nav{display:flex;gap:.2rem;margin-left:auto;align-items:center}
.nav a{position:relative;text-decoration:none;font:500 .86rem/1 var(--f-mono);color:var(--muted);padding:.6rem .7rem;border-radius:8px;transition:color .2s ease,background .2s ease}
.nav a:hover{color:var(--fg);background:var(--panel)}
.nav a[aria-current="page"]{color:var(--fg)}
.nav a[aria-current="page"]::after{content:"";position:absolute;left:.7rem;right:.7rem;bottom:.25rem;height:2px;background:var(--cyan);border-radius:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;border:0;cursor:pointer;font:600 .92rem/1 var(--f-mono);
  padding:.9em 1.2em;border-radius:9px;text-decoration:none;background:var(--cyan);color:var(--on-cyan);transition:transform .15s ease,box-shadow .25s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 30px -10px var(--cyan)}
.btn-ghost{background:transparent;color:var(--fg);border:1px solid var(--line-2)}
.btn-ghost:hover{box-shadow:none;border-color:var(--fg)}
.btn-sm{padding:.65em .9em;font-size:.84rem}
.nav .btn{margin-left:.5rem;color:var(--on-cyan)}
.nav .btn:hover{background:var(--cyan);color:var(--on-cyan)}
.menu-btn{display:none;margin-left:auto;background:var(--panel);border:1px solid var(--line-2);color:var(--fg);border-radius:9px;width:44px;height:44px;cursor:pointer}
.menu-btn span{display:block;width:18px;height:2px;background:currentColor;margin:4px auto;transition:transform .3s ease,opacity .2s ease}
@media (max-width:1020px){
  .nav{display:none}
  .menu-btn{display:block}
}
.drawer{position:fixed;inset:0;z-index:80;background:color-mix(in srgb,var(--bg) 96%,transparent);backdrop-filter:blur(10px);
  display:flex;flex-direction:column;padding:calc(env(safe-area-inset-top,0px) + 80px) max(20px,env(safe-area-inset-right,0px)) 32px max(20px,env(safe-area-inset-left,0px));
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s}
.drawer.open{opacity:1;visibility:visible}
.drawer a{font:700 clamp(1.6rem,7vw,2.4rem)/1.1 var(--f-mono);text-decoration:none;padding:.45rem 0;border-bottom:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;transform:translateY(16px);opacity:0;transition:transform .45s cubic-bezier(.2,.8,.2,1),opacity .45s ease}
.drawer a small{font:400 .8rem/1 var(--f-mono);color:var(--muted)}
.drawer.open a{transform:none;opacity:1}
.drawer .x{position:absolute;top:calc(env(safe-area-inset-top,0px) + 12px);right:max(16px,env(safe-area-inset-right,0px))}

/* Faixa "ao vivo" */
.ticker{border-bottom:1px solid var(--line);background:var(--bg-2);overflow:hidden;font:400 .8rem/1 var(--f-mono);color:var(--muted)}
.ticker .wrap{display:flex;align-items:center;gap:1rem;height:38px}
.live{flex:none;display:inline-flex;align-items:center;gap:.5em;color:var(--fg);font-weight:600;letter-spacing:.05em}
.live i{width:7px;height:7px;border-radius:50%;background:var(--hot);box-shadow:0 0 10px var(--hot);animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{50%{opacity:.35}}
.tk{flex:1;min-width:0;overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 4%,#000 96%,transparent)}
.tk-in{display:inline-flex;gap:2.5rem;white-space:nowrap;animation:tk 60s linear infinite;padding-left:1rem}
.tk-in a{text-decoration:none}
.tk-in a:hover{color:var(--cyan-ink)}
.tk-in a::before{content:"> ";color:var(--cyan)}
.tk:hover .tk-in{animation-play-state:paused}
@keyframes tk{to{transform:translateX(-50%)}}
.upd{flex:none}
@media (max-width:640px){.upd{display:none}}

/* ---------- Blocos ---------- */
.sec{padding-block:var(--s7)}
.sec + .sec{border-top:1px solid var(--line)}
.sec-head{display:flex;flex-wrap:wrap;gap:var(--s3) var(--s5);align-items:end;justify-content:space-between;margin-bottom:var(--s5)}
.sec-head h2{font-size:clamp(1.45rem,3vw,2rem);line-height:1.1;margin:0}
.sec-head p{margin:.4rem 0 0;color:var(--muted);max-width:52ch}
.cmd{font:500 .8rem/1 var(--f-mono);color:var(--cyan-ink);margin:0 0 var(--s3);letter-spacing:.02em}
.cmd::before{content:"> "}
.more-link{font:600 .85rem/1 var(--f-mono);color:var(--cyan-ink);text-decoration:none;white-space:nowrap}
.more-link:hover{text-decoration:underline}
.page-head{padding:var(--s7) 0 var(--s5);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-head h1{font-size:clamp(2.1rem,5.4vw,3.6rem);line-height:1.03;margin:0 0 var(--s4);letter-spacing:-.035em}
.page-head p.lede{font-size:1.15rem;color:var(--muted);max-width:58ch;margin:0}
.page-head .glow{position:absolute;right:-10%;top:-60%;width:60%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,var(--cyan-soft),transparent 65%);pointer-events:none;filter:blur(10px)}
.crumbs{font:400 .8rem/1 var(--f-mono);color:var(--muted);margin-bottom:var(--s4)}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--cyan-ink)}

/* cartão base com brilho que segue o mouse */
.card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;min-width:0;
  transition:border-color .25s ease,transform .25s ease,box-shadow .3s ease}
.card::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .3s ease;
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%),rgba(0,209,255,.10),transparent 45%)}
.card:hover{border-color:var(--line-2);transform:translateY(-3px);box-shadow:0 24px 50px -32px rgba(0,0,0,.8)}
.card:hover::after{opacity:1}
.card a.stretch::before{content:"";position:absolute;inset:0;z-index:1}
.chip-tag{display:inline-block;font:600 .72rem/1 var(--f-mono);padding:.4em .55em;border-radius:5px;background:var(--cyan-soft);color:var(--cyan-ink);letter-spacing:.02em}
.chip-tag.hot{background:rgba(255,95,109,.14);color:var(--hot)}
.chip-tag.ok{background:rgba(61,220,151,.13);color:var(--ok)}
.meta{display:flex;flex-wrap:wrap;gap:.4rem .8rem;align-items:center;font:400 .76rem/1.2 var(--f-mono);color:var(--muted)}

/* Capa / thumbnail */
.thumb{position:relative;aspect-ratio:16/9;background:#07080a;overflow:hidden;border-bottom:1px solid var(--line)}
.thumb img{position:absolute;inset:0;z-index:1;width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.2,.8,.2,1),filter .4s ease;filter:saturate(.9) contrast(1.02)}
.card:hover .thumb img{transform:scale(1.05);filter:saturate(1.05)}
.thumb::after{z-index:1;content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(0,0,0,.45));pointer-events:none}
.thumb .credit{position:absolute;right:8px;bottom:6px;z-index:2;font:400 .62rem/1 var(--f-mono);color:rgba(255,255,255,.75)}
/* capa gerada (quando não há imagem) */
.cover{position:absolute;inset:0;display:grid;place-items:center;
  background:
    radial-gradient(120% 90% at var(--cx,80%) var(--cy,10%),color-mix(in srgb,var(--hue,#00d1ff) 30%,transparent),transparent 60%),
    linear-gradient(135deg,#0c0e12,#06070a)}
.cover::before{content:"";position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;mask-image:radial-gradient(circle at 70% 30%,#000,transparent 75%)}
.cover b{position:relative;font:700 clamp(2.4rem,7vw,4.2rem)/1 var(--f-mono);color:#fff;letter-spacing:-.04em;opacity:.95}
.cover b i{font-style:normal;color:var(--hue,#00d1ff)}
.cover em{position:absolute;left:12px;bottom:10px;font:500 .68rem/1 var(--f-mono);font-style:normal;color:rgba(255,255,255,.7);letter-spacing:.08em;text-transform:uppercase}

/* ---------- Home ---------- */
.hello{padding:var(--s6) 0 var(--s5);position:relative}
.hello-row{display:flex;flex-wrap:wrap;gap:var(--s4) var(--s6);align-items:center;justify-content:space-between}
.hello h1{font-size:clamp(1.7rem,4.2vw,2.8rem);line-height:1.05;margin:0;letter-spacing:-.035em}
.hello h1 .c{color:var(--cyan)}
.ask{display:flex;gap:.5rem;flex:1 1 26rem;max-width:34rem;background:var(--panel);border:1px solid var(--line-2);border-radius:12px;padding:.35rem;
  transition:border-color .2s ease,box-shadow .3s ease}
.ask:focus-within{border-color:var(--cyan);box-shadow:0 0 0 4px var(--cyan-soft)}
.ask span{font:600 1rem/1 var(--f-mono);color:var(--cyan);align-self:center;padding-left:.6rem}
.ask input{flex:1;min-width:0;border:0;background:transparent;color:var(--fg);font:400 1rem/1 var(--f-body);padding:.7rem .3rem;outline:0}
.ask .btn{padding:.7em 1em}

.lead-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:var(--s4);margin-bottom:var(--s4)}
.feature .thumb{aspect-ratio:16/8.4}
.feature .body{padding:var(--s5)}
.feature h2,.feature h3{font-size:clamp(1.35rem,2.8vw,2rem);line-height:1.12;margin:.7rem 0 .6rem}
.feature p{margin:0;color:var(--muted);font-size:1.02rem}
.stack{display:grid;gap:var(--s4);grid-template-rows:repeat(3,1fr)}
.row-card{display:grid;grid-template-columns:7.5rem minmax(0,1fr);gap:var(--s4);padding:var(--s3);align-items:center}
.row-card .thumb{aspect-ratio:1;border-radius:9px;border:0}
.row-card .thumb .cover b{font-size:1.6rem}
.row-card h3{font-size:1rem;line-height:1.25;margin:.4rem 0 0}
.grid{display:grid;gap:var(--s4)}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.news-card .body{padding:var(--s4) var(--s4) var(--s5);display:flex;flex-direction:column;gap:.55rem}
.news-card h3{font-size:1.08rem;line-height:1.25;margin:0}
.news-card h3 a{text-decoration:none}
.news-card p{margin:0;color:var(--muted);font-size:.95rem}
.news-card .biz{margin-top:.2rem;font-size:.9rem;color:var(--fg);border-left:2px solid var(--cyan);padding-left:.7rem}
@media (max-width:1020px){ .lead-grid{grid-template-columns:1fr} .stack{grid-template-rows:none} .g4{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (max-width:820px){ .g3{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (max-width:600px){ .g3,.g2,.g4{grid-template-columns:1fr} .row-card{grid-template-columns:5.5rem minmax(0,1fr)} }

/* Banner "Comece aqui" */
.starter{position:relative;overflow:hidden;border:1px solid var(--line-2);border-radius:16px;background:linear-gradient(120deg,var(--panel),var(--bg-2));
  display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:var(--s5);align-items:center;padding:var(--s6)}
.starter h2{font-size:clamp(1.5rem,3.4vw,2.3rem);line-height:1.08;margin:.3rem 0 .7rem}
.starter p{color:var(--muted);margin:0 0 var(--s5)}
.starter canvas{width:100%;height:220px;display:block}
@media (max-width:820px){ .starter{grid-template-columns:1fr;padding:var(--s5)} .starter canvas{height:150px} }

/* trilho de categorias de ferramentas */
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(12.5rem,44%),1fr));gap:var(--s3)}
.row-card .credit,.row-card .cover em{display:none}
.cat{padding:var(--s4);display:flex;flex-direction:column;gap:.7rem;text-decoration:none}
.cat h3{font-size:1rem;margin:0}
.cat .n{font:400 .76rem/1 var(--f-mono);color:var(--muted)}
.logos{display:flex;align-items:center}
.logos img,.logos .lg{width:30px;height:30px;border-radius:8px;background:#fff;border:2px solid var(--panel);margin-left:-8px;object-fit:contain;padding:3px}
.logos img:first-child{margin-left:0}

/* listas compactas */
.list{display:flex;flex-direction:column}
.li{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:.9rem;align-items:center;padding:.85rem 0;border-bottom:1px solid var(--line);text-decoration:none}
.li:hover .t{color:var(--cyan-ink)}
.li .n{font:700 .85rem/1 var(--f-mono);color:var(--muted);width:1.6rem}
.li .t{font:600 .95rem/1.3 var(--f-mono);overflow-wrap:anywhere;transition:color .2s ease}
.li .d{display:block;font:400 .86rem/1.4 var(--f-body);color:var(--muted);margin-top:.2rem}
.li .s{font:400 .76rem/1 var(--f-mono);color:var(--muted);white-space:nowrap}

/* termo do dia */
.term-day{padding:var(--s5)}
.term-day h3{font-size:1.6rem;margin:.6rem 0 .2rem}
.term-day .pt{color:var(--cyan-ink);font:500 .9rem/1.3 var(--f-mono);margin:0 0 .8rem}
.term-day p{margin:0 0 .6rem}

/* newsletter */
.news-cta{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:var(--s6);align-items:center}
.form{display:flex;flex-wrap:wrap;gap:var(--s2)}
.form input[type=email]{flex:1 1 15rem;min-width:0;font:400 1rem/1 var(--f-body);padding:.95em 1em;border-radius:9px;border:1px solid var(--line-2);background:var(--panel);color:var(--fg)}
.consent{display:flex;gap:.6em;align-items:flex-start;font-size:.84rem;color:var(--muted);flex-basis:100%;margin-top:var(--s2)}
.consent input{margin-top:.2em;accent-color:var(--cyan);width:1.05rem;height:1.05rem;flex:none}
.form-msg{flex-basis:100%;font:400 .86rem/1.4 var(--f-mono);margin:var(--s2) 0 0;min-height:1.4em}
.form-msg.ok{color:var(--ok)}.form-msg.err{color:var(--warn)}
@media (max-width:820px){.news-cta{grid-template-columns:1fr}}

/* ---------- Filtros ---------- */
.filters{display:flex;flex-wrap:wrap;gap:.45rem;align-items:center;margin:var(--s5) 0}
.search{flex:1 1 16rem;min-width:0;font:400 1rem/1 var(--f-body);padding:.85em 1em;border-radius:9px;border:1px solid var(--line-2);background:var(--panel);color:var(--fg)}
.search:focus{border-color:var(--cyan);outline:0;box-shadow:0 0 0 4px var(--cyan-soft)}
.chip{font:500 .8rem/1 var(--f-mono);padding:.62em .85em;border-radius:7px;border:1px solid var(--line-2);background:transparent;color:var(--fg);cursor:pointer;text-decoration:none;white-space:nowrap;transition:all .2s ease}
.chip:hover{border-color:var(--cyan)}
.chip[aria-pressed="true"],.chip.on{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.chip .c{opacity:.6;margin-left:.3em}
.scroll-x{display:flex;gap:.45rem;overflow-x:auto;scrollbar-width:none;padding-bottom:2px;mask-image:linear-gradient(90deg,#000 92%,transparent)}
.scroll-x::-webkit-scrollbar{display:none}
.empty{color:var(--muted);padding:var(--s5) 0}

/* ---------- Ferramentas ---------- */
.tool{padding:var(--s4);display:flex;flex-direction:column;gap:.7rem}
.tool-top{display:flex;gap:.8rem;align-items:center}
.tool-logo{width:46px;height:46px;border-radius:11px;background:#fff;display:grid;place-items:center;flex:none;overflow:hidden;box-shadow:0 0 0 1px var(--line-2)}
.tool-logo img{width:30px;height:30px;object-fit:contain}
.tool-logo.lg{width:72px;height:72px;border-radius:16px}
.tool-logo.lg img{width:48px;height:48px}
.tool h3{font-size:1.02rem;margin:0;line-height:1.2}
.tool h3 a{text-decoration:none}
.tool .by{font:400 .75rem/1 var(--f-mono);color:var(--muted)}
.tool p{margin:0;font-size:.93rem;color:var(--muted)}
.tool .tfoot{margin-top:auto;display:flex;flex-wrap:wrap;gap:.4rem;align-items:center}
.cat-block{margin-top:var(--s6)}
.cat-block > h2{font-size:1.25rem;margin:0 0 var(--s4);display:flex;gap:.6rem;align-items:baseline}
.cat-block > h2 small{font:400 .8rem/1 var(--f-mono);color:var(--muted)}

/* ---------- Artigo / guia ---------- */
.article{display:grid;grid-template-columns:minmax(0,1fr) 19rem;gap:var(--s7);padding-block:var(--s6) var(--s8)}
.article-main{min-width:0}
.kicker{font:600 .76rem/1 var(--f-mono);color:var(--cyan-ink);letter-spacing:.08em;text-transform:uppercase;margin:0 0 var(--s3)}
.article h1{font-size:clamp(1.9rem,4.6vw,3rem);line-height:1.06;margin:0 0 var(--s4);letter-spacing:-.035em}
.lf{font-size:1.22rem;line-height:1.5;color:var(--muted);margin:0 0 var(--s5);max-width:62ch}
.byline{display:flex;flex-wrap:wrap;gap:.5rem 1.2rem;align-items:center;font:400 .8rem/1.4 var(--f-mono);color:var(--muted);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:.85rem 0;margin:0 0 var(--s6)}
.byline a{color:var(--cyan-ink)}
.hero-img{margin:0 0 var(--s6);border-radius:14px;overflow:hidden;border:1px solid var(--line);position:relative;aspect-ratio:16/8}
.hero-img img{width:100%;height:100%;object-fit:cover}
.hero-img figcaption{position:absolute;right:10px;bottom:8px;font:400 .68rem/1 var(--f-mono);color:rgba(255,255,255,.8);background:rgba(0,0,0,.45);padding:.35em .5em;border-radius:4px}
.prose{max-width:68ch}
.prose p{font-size:1.1rem;line-height:1.78;margin:0 0 1.15em}
.prose h2{font-size:1.35rem;margin:2em 0 .7em}
.prose h3{font-size:1.15rem;margin:1.7em 0 .6em;color:var(--cyan-ink)}
.prose.drop > p:first-of-type::first-letter{float:left;font:700 3.3em/.82 var(--f-mono);color:var(--cyan);margin:.07em .12em 0 0}
.prose ul,.prose ol{padding-left:1.25rem;margin:0 0 1.2em}
.prose li{margin:.35em 0;font-size:1.06rem;line-height:1.65}
.box{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:var(--s5);margin:0 0 var(--s5);max-width:68ch}
.box h3{font:700 .95rem/1 var(--f-mono);margin:0 0 var(--s4);color:var(--fg)}
.box h3::before{content:"// ";color:var(--cyan)}
.box dl{margin:0;display:grid;gap:var(--s3)}
.box dt{font:600 .92rem/1.2 var(--f-mono);color:var(--cyan-ink)}
.box dd{margin:.2rem 0 0}
.box ul,.box ol{margin:0;padding-left:1.25rem;display:grid;gap:.6rem}
.entenda{margin-top:var(--s7);padding-top:var(--s5);border-top:2px solid var(--cyan)}
.entenda > h2{font-size:1.5rem;margin:0 0 var(--s5)}
.entenda > h2::before{content:"> ";color:var(--cyan)}
.src-box{margin-top:var(--s6);background:linear-gradient(120deg,var(--panel),var(--bg-2));border:1px solid var(--line-2);border-radius:14px;padding:var(--s5);max-width:68ch}
.src-box p{margin:0 0 var(--s4)}
.src-box .row{display:flex;flex-wrap:wrap;gap:var(--s3)}
.note{font-size:.84rem;color:var(--muted);margin-top:var(--s5);max-width:68ch}
.aside{position:sticky;top:96px;align-self:start;display:flex;flex-direction:column;gap:var(--s4)}
.aside .box{margin:0}
.aside .li{grid-template-columns:minmax(0,1fr);gap:.2rem}
.aside .li .n{display:none}
.aside .li .t{font-size:.88rem}
.aside .li .s{font-size:.7rem}
.share{display:flex;gap:.5rem;flex-wrap:wrap}
.diff{display:flex;gap:.6rem;align-items:center;font:400 .8rem/1 var(--f-mono);color:var(--muted)}
.diff i{width:16px;height:6px;border-radius:2px;background:var(--line-2);display:inline-block;margin-right:3px}
.diff i.on{background:var(--cyan)}
@media (max-width:1020px){ .article{grid-template-columns:1fr} .aside{position:static} }

/* ---------- Glossário ---------- */
.abc{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:var(--s4)}
.abc a{font:600 .85rem/1 var(--f-mono);width:2.15rem;height:2.15rem;display:grid;place-items:center;border-radius:7px;border:1px solid var(--line);background:var(--panel);text-decoration:none}
.abc a:hover{border-color:var(--cyan);color:var(--cyan-ink)}
.abc a.off{opacity:.25;pointer-events:none}
.terms{display:grid;grid-template-columns:repeat(auto-fill,minmax(19rem,1fr));gap:var(--s3)}
.term{padding:var(--s4) var(--s4) var(--s5);scroll-margin-top:96px}
.term h3{font-size:1.12rem;margin:0}
.term .sig{font:400 .76rem/1.3 var(--f-mono);color:var(--muted);margin:.2rem 0 0}
.term .pt{font:500 .86rem/1.3 var(--f-mono);color:var(--cyan-ink);margin:.55rem 0 .45rem}
.term p{margin:0 0 .5rem;font-size:.97rem}
.term .ex{font-size:.9rem;color:var(--muted);border-left:2px solid var(--line-2);padding-left:.7rem;margin:0}
.term .lvl{position:absolute;top:var(--s4);right:var(--s4)}
.letter{font:700 2rem/1 var(--f-mono);color:var(--cyan);margin:var(--s6) 0 var(--s3);scroll-margin-top:96px}
.term:target{border-color:var(--cyan);box-shadow:0 0 0 3px var(--cyan-soft)}

/* ---------- Chat ---------- */
.chat-page{display:grid;grid-template-columns:minmax(0,1fr) 22rem;gap:var(--s5);padding-block:var(--s5) var(--s7);align-items:start}
.chat-win{background:var(--panel);border:1px solid var(--line-2);border-radius:16px;display:flex;flex-direction:column;min-width:0;height:min(44rem,calc(100dvh - 190px));min-height:28rem}
.chat-top{display:flex;align-items:center;gap:.6rem;padding:.8rem 1rem;border-bottom:1px solid var(--line);font:500 .82rem/1 var(--f-mono);color:var(--muted)}
.chat-top .dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok)}
.chat-top button{margin-left:auto}
.chat-log{flex:1;overflow-y:auto;padding:var(--s5);display:flex;flex-direction:column;gap:var(--s4);overscroll-behavior:contain}
.msg{max-width:88%;padding:.85rem 1rem;border-radius:14px;font-size:1rem;line-height:1.6;animation:msgIn .35s cubic-bezier(.2,.8,.2,1)}
@keyframes msgIn{from{opacity:0;transform:translateY(8px)}}
.msg.bot{background:var(--panel-2);border-top-left-radius:4px}
.msg.me{background:var(--cyan);color:var(--on-cyan);align-self:flex-end;border-top-right-radius:4px}
.msg .who{display:block;font:600 .72rem/1 var(--f-mono);color:var(--cyan-ink);margin-bottom:.45rem}
.msg p{margin:0 0 .6em}.msg p:last-child{margin:0}
.msg ul,.msg ol{margin:.2em 0 .6em;padding-left:1.2rem}
.msg a{color:var(--cyan-ink)}
.msg code{font-family:var(--f-mono);font-size:.9em;background:rgba(127,127,127,.15);padding:.1em .3em;border-radius:4px}
.typing{display:inline-flex;gap:4px}
.typing i{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:typ 1s ease-in-out infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes typ{50%{transform:translateY(-4px);opacity:.4}}
.chat-form{display:flex;gap:var(--s2);padding:var(--s3);border-top:1px solid var(--line)}
.chat-form textarea{flex:1;min-width:0;resize:none;font:400 1rem/1.4 var(--f-body);padding:.8em 1em;border-radius:10px;border:1px solid var(--line-2);background:var(--bg);color:var(--fg);max-height:9rem}
.chat-form textarea:focus{border-color:var(--cyan);outline:0}
.sugs{display:flex;flex-wrap:wrap;gap:var(--s2)}
.sug{font:500 .8rem/1.25 var(--f-mono);text-align:left;padding:.6em .8em;border-radius:9px;border:1px solid var(--line-2);background:transparent;color:var(--fg);cursor:pointer}
.sug:hover{border-color:var(--cyan);color:var(--cyan-ink)}
.side h3{font-size:1rem;margin:0 0 .6rem}
.side p{color:var(--muted);font-size:.93rem;margin:0 0 var(--s3)}
.side textarea{width:100%;min-height:8rem;resize:vertical;font:400 .95rem/1.45 var(--f-body);padding:.8em;border-radius:10px;border:1px solid var(--line-2);background:var(--bg);color:var(--fg)}
.badge{font:600 .68rem/1 var(--f-mono);padding:.35em .5em;border-radius:4px;background:linear-gradient(90deg,#00d1ff,#7c5cff);color:#fff;letter-spacing:.04em}
@media (max-width:1020px){ .chat-page{grid-template-columns:1fr} }

/* ---------- Comece aqui ---------- */
.timeline{position:relative;margin:var(--s6) 0;padding-left:0}
.tl{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:var(--s6);align-items:center;padding:var(--s6) 0;border-bottom:1px solid var(--line)}
.tl:nth-child(even) .tl-img{order:2}
.tl-img{border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#000;position:relative;aspect-ratio:4/3}
.tl-img img{width:100%;height:100%;object-fit:cover;filter:grayscale(.15) contrast(1.05);transition:transform 1.2s cubic-bezier(.2,.8,.2,1)}
.tl:hover .tl-img img{transform:scale(1.04)}
.tl-img figcaption{position:absolute;left:0;right:0;bottom:0;padding:.5rem .7rem;font:400 .68rem/1.35 var(--f-mono);color:rgba(255,255,255,.85);background:linear-gradient(transparent,rgba(0,0,0,.75))}
.tl time{font:700 .9rem/1 var(--f-mono);color:var(--cyan-ink)}
.tl h2{font-size:clamp(1.4rem,3vw,2rem);margin:.5rem 0 .7rem;line-height:1.1}
.tl p{margin:0 0 .7rem;color:var(--muted)}
.tl p.now{color:var(--fg)}
@media (max-width:820px){ .tl{grid-template-columns:1fr;gap:var(--s4)} .tl:nth-child(even) .tl-img{order:0} }
.steps{counter-reset:s;display:grid;gap:var(--s3)}
.step{counter-increment:s;padding:var(--s4) var(--s4) var(--s4) 3.6rem;position:relative}
.step::before{content:counter(s);position:absolute;left:var(--s4);top:var(--s4);width:1.9rem;height:1.9rem;border-radius:8px;background:var(--cyan);color:var(--on-cyan);display:grid;place-items:center;font:700 .9rem/1 var(--f-mono)}
.step h3{font-size:1.02rem;margin:0 0 .3rem}
.step p{margin:0;color:var(--muted);font-size:.95rem}

/* Quiz */
.quiz{max-width:46rem;padding:var(--s5)}
.quiz-top{display:flex;justify-content:space-between;align-items:center;font:500 .8rem/1 var(--f-mono);color:var(--muted);margin-bottom:var(--s4)}
.quiz-q{font:700 1.25rem/1.3 var(--f-mono);margin:0 0 var(--s4)}
.opts{display:grid;gap:var(--s2)}
.opt{text-align:left;font:400 1rem/1.4 var(--f-body);padding:.85em 1em;border-radius:10px;border:1px solid var(--line-2);background:var(--bg);color:var(--fg);cursor:pointer}
.opt:hover:not([disabled]){border-color:var(--cyan)}
.opt.right{border-color:var(--ok);background:rgba(61,220,151,.1)}
.opt.wrong{border-color:var(--hot);background:rgba(255,95,109,.08)}
.quiz-exp{margin:var(--s4) 0 0;color:var(--muted)}
.quiz-nav{display:flex;justify-content:flex-end;margin-top:var(--s4)}

/* ---------- Rodapé ---------- */
.foot{border-top:1px solid var(--line);padding:var(--s7) 0 calc(var(--s6) + env(safe-area-inset-bottom,0px));margin-top:var(--s6);background:var(--bg-2)}
.foot-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:var(--s6)}
.foot h4{font-size:.8rem;color:var(--muted);margin:0 0 var(--s3);letter-spacing:.06em;text-transform:uppercase}
.foot a{display:block;text-decoration:none;color:var(--fg);padding:.25rem 0;font-size:.95rem}
.foot a:hover{color:var(--cyan-ink)}
.foot a.logo{display:inline-flex}
.foot small{display:block;color:var(--muted);margin-top:var(--s5);font-size:.82rem}
@media (max-width:820px){ .foot-grid{grid-template-columns:1fr 1fr} }

/* Revelar ao rolar (ativado pelo JS) */
.js [data-reveal]{opacity:0;transform:translateY(18px)}
@media (prefers-reduced-motion:reduce){ .js [data-reveal]{opacity:1;transform:none} .tk-in{animation:none} }

/* botão flutuante do chat */
.fab{position:fixed;right:max(16px,env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:55;
  display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 1.05rem;border-radius:999px;background:var(--cyan);color:var(--on-cyan);
  font:700 .88rem/1 var(--f-mono);text-decoration:none;box-shadow:0 14px 40px -12px var(--cyan);transition:transform .2s ease}
.fab:hover{transform:translateY(-2px) scale(1.03)}
.fab::before{content:">";font-size:1.05rem}

/* ---------- Filtros em camadas ---------- */
.fbar{position:sticky;top:64px;z-index:6;background:color-mix(in srgb,var(--bg) 94%,transparent);backdrop-filter:blur(10px);padding:.8rem 0 .6rem;margin:0 0 var(--s4);border-bottom:1px solid var(--line)}
.fbar .row1{display:flex;gap:.6rem;align-items:center;margin-bottom:.55rem}
.fbar .row1 .search{flex:1}
.fbar .count{font:500 .8rem/1 var(--f-mono);color:var(--muted);white-space:nowrap}
.fbar .count b{color:var(--cyan-ink)}
.frow{display:flex;gap:.45rem;align-items:center;margin-top:.45rem}
.frow > .lbl{flex:none;font:600 .7rem/1 var(--f-mono);color:var(--muted);text-transform:uppercase;letter-spacing:.06em;width:4.6rem}
.frow .scroll-x{flex:1;min-width:0}
.frow[hidden]{display:none}
.chip.sm{padding:.48em .7em;font-size:.74rem}
.chip.tg[aria-pressed="true"]{background:var(--cyan);color:var(--on-cyan);border-color:var(--cyan)}
.more-f{font:600 .76rem/1 var(--f-mono);color:var(--cyan-ink);background:none;border:0;cursor:pointer;padding:.4rem 0}
.fx[hidden]{display:none}
@media (max-width:640px){ .frow > .lbl{width:3.6rem;font-size:.62rem} .fbar{top:64px} }

/* tags de substituição e info de repositório */
.swap{display:flex;flex-wrap:wrap;gap:.3rem;align-items:center;font:500 .72rem/1 var(--f-mono)}
.swap span{padding:.35em .5em;border-radius:5px;background:rgba(255,180,84,.12);color:var(--warn);text-decoration:line-through;text-decoration-color:rgba(255,180,84,.6)}
.swap::before{content:"substitui";color:var(--muted);margin-right:.15rem}
.sub-tag{font:500 .7rem/1 var(--f-mono);color:var(--muted)}
.stars{font:500 .74rem/1 var(--f-mono);color:var(--muted)}

/* tabela "troque o pago pelo grátis" */
.swap-table{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(19rem,100%),1fr));gap:var(--s3)}
.swap-row{padding:var(--s4);display:flex;flex-direction:column;gap:.55rem}
.swap-row .paid{font:700 .95rem/1.2 var(--f-mono);display:flex;align-items:center;gap:.5rem}
.swap-row .paid s{color:var(--warn);text-decoration-color:rgba(255,180,84,.7)}
.swap-row .paid::after{content:"→ grátis";font:500 .7rem/1 var(--f-mono);color:var(--ok);margin-left:auto}
.swap-row .alts{display:flex;flex-wrap:wrap;gap:.35rem}
.swap-row .alts a{font:600 .8rem/1 var(--f-mono);padding:.5em .65em;border-radius:7px;border:1px solid var(--line-2);text-decoration:none}
.swap-row .alts a:hover{border-color:var(--ok);color:var(--ok)}

/* IA local */
.tiers{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(15rem,100%),1fr));gap:var(--s3)}
.tier{padding:var(--s4)}
.tier b{display:block;font:700 1rem/1.2 var(--f-mono);margin-bottom:.4rem;color:var(--cyan-ink)}
.tier p{margin:0;color:var(--muted);font-size:.93rem}
.mtable{width:100%;border-collapse:collapse;font-size:.93rem}
.mtable th{text-align:left;font:600 .72rem/1 var(--f-mono);color:var(--muted);text-transform:uppercase;letter-spacing:.05em;padding:.7rem .6rem;border-bottom:1px solid var(--line-2)}
.mtable td{padding:.8rem .6rem;border-bottom:1px solid var(--line);vertical-align:top}
.mtable td b{font-family:var(--f-mono)}
.mtable code{font-family:var(--f-mono);font-size:.82em;background:var(--panel-2);padding:.15em .4em;border-radius:4px;white-space:nowrap}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--panel)}
@media (max-width:760px){ .mtable thead{display:none} .mtable tr{display:block;padding:.6rem .4rem;border-bottom:1px solid var(--line)} .mtable td{display:block;border:0;padding:.2rem .6rem} }
.os{font:500 .7rem/1 var(--f-mono);color:var(--muted)}