/* ============================================================
   MIRAI TECH — site institucional (autoridade + blog técnico do RAG)
   Estética de empresa de mídia-tech B2B. Distinta do jornal (showroom).
   Preto-tinta + vermelho Mirai + um azul de engenharia. Archivo + Inter.
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800;900&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --ink:#0d0f13;
  --ink-2:#171a21;
  --paper:#ffffff;
  --paper-2:#f6f7f9;
  --paper-3:#eef0f3;
  --muted:#6b7280;
  --muted-2:#9aa1ad;
  --line:#e6e8ec;
  --line-d:#262a33;
  --accent:#c8102e;       /* vermelho Mirai */
  --accent-d:#9d0c24;
  --blue:#2c6ecb;         /* azul de engenharia */
  --ok:#15a36e;
  --head:"Archivo",-apple-system,system-ui,sans-serif;
  --body:"Inter",-apple-system,system-ui,sans-serif;
  --max:1160px;
  --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
h1,h2,h3,h4{font-family:var(--head);line-height:1.08;letter-spacing:-.02em;font-weight:800}
section{padding:84px 0}
.eyebrow{font-family:var(--head);font-weight:700;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.lead{font-size:19px;color:var(--muted);max-width:60ch}

/* ---------- Botões ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--head);font-weight:700;font-size:15px;
  padding:13px 22px;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:.15s;white-space:nowrap}
.btn--primary{background:var(--accent);color:#fff}
.btn--primary:hover{background:var(--accent-d)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn--ghost:hover{border-color:var(--ink);background:var(--paper-2)}
.btn--ondark{background:#fff;color:var(--ink)}
.btn--ondark:hover{background:var(--paper-3)}
.btn--ghost-d{background:transparent;border-color:#3a3f4b;color:#fff}
.btn--ghost-d:hover{border-color:#fff}
.arrow::after{content:"→";margin-left:2px}

/* ---------- Topbar ---------- */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar .container{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand img{width:30px;height:30px}
.brand b{font-family:var(--head);font-weight:900;font-size:20px;letter-spacing:-.03em}
.brand span{color:var(--muted);font-weight:600;font-size:13px;margin-left:2px}
.topnav{display:flex;gap:24px;margin-left:14px}
.topnav a{font-weight:600;font-size:14px;color:var(--muted)}
.topnav a:hover{color:var(--ink)}
.topbar .spacer{margin-left:auto}
@media(max-width:860px){.topnav{display:none}}

/* ---------- Hero (escuro) ---------- */
.hero{background:radial-gradient(1200px 500px at 80% -10%,rgba(44,110,203,.18),transparent),var(--ink);color:#fff;padding:96px 0 84px;border-bottom:1px solid var(--line-d)}
.hero h1{font-size:clamp(40px,6.4vw,76px);font-weight:900;letter-spacing:-.035em;max-width:16ch}
.hero .sub{font-size:20px;color:#c7ccd6;max-width:58ch;margin-top:22px}
.hero .sub b{color:#fff;font-weight:600}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px}
.hero .src{margin-top:20px;font-size:13px;color:var(--muted-2);max-width:56ch}

/* ---------- Faixa de números ---------- */
.stats{background:var(--ink-2);color:#fff;padding:0}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat{padding:30px 22px;border-left:1px solid var(--line-d)}
.stat:first-child{border-left:0}
.stat b{font-family:var(--head);font-weight:800;font-size:30px;display:block;letter-spacing:-.02em}
.stat span{color:var(--muted-2);font-size:13px}
@media(max-width:760px){.stats .container{grid-template-columns:repeat(2,1fr)}.stat:nth-child(3){border-left:0}}

/* ---------- Inversão 70/30 ---------- */
.invert .grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.invert h2{font-size:clamp(28px,3.6vw,42px)}
.invert p{color:var(--ink);font-size:17px;margin-top:16px}
.invert .quote{border-left:3px solid var(--accent);padding:10px 0 10px 20px;color:var(--muted);font-style:italic;margin-top:24px}
.ratio{display:flex;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);font-family:var(--head);font-weight:800}
.ratio .r70{flex:0 0 70%;background:var(--paper-2);color:var(--muted);padding:34px 22px}
.ratio .r30{flex:1;background:var(--ink);color:#fff;padding:34px 22px}
.ratio small{display:block;font-family:var(--body);font-weight:500;font-size:13px;opacity:.8;margin-top:6px;letter-spacing:0}
@media(max-width:820px){.invert .grid{grid-template-columns:1fr;gap:28px}}

/* ---------- A Suíte (produtos) ---------- */
.suite{background:var(--paper-2)}
.section-head{text-align:center;max-width:64ch;margin:0 auto 48px}
.section-head h2{font-size:clamp(28px,3.6vw,40px)}
.section-head p{color:var(--muted);font-size:17px;margin-top:14px}
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.product{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px;display:flex;flex-direction:column}
.product .tag{font-family:var(--head);font-weight:800;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.product h3{font-size:24px;margin:8px 0 4px}
.product .role{color:var(--muted);font-size:14px;font-weight:600;margin-bottom:14px}
.product ul{list-style:none;display:flex;flex-direction:column;gap:9px;font-size:14.5px;color:var(--ink)}
.product li{padding-left:20px;position:relative}
.product li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--accent)}
.product--nexus li::before{background:var(--blue)}
.product--akashi li::before{background:var(--ok)}
@media(max-width:860px){.products{grid-template-columns:1fr}}

/* ---------- Prova (showroom ao vivo) ---------- */
.proof .card{display:grid;grid-template-columns:1.2fr 1fr;gap:0;border-radius:var(--r);overflow:hidden;border:1px solid var(--line-d);background:var(--ink);color:#fff}
.proof .pad{padding:44px}
.proof h2{font-size:clamp(26px,3.4vw,38px)}
.proof p{color:#c7ccd6;margin-top:14px;font-size:16px}
.proof .live{display:inline-flex;align-items:center;gap:8px;font-family:var(--head);font-weight:700;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:#fff;margin-bottom:14px}
.proof .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(200,16,46,.6);animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(200,16,46,.6)}100%{box-shadow:0 0 0 12px rgba(200,16,46,0)}}
.proof .mock{background:linear-gradient(135deg,#1b1f27,#0d0f13);display:flex;align-items:center;justify-content:center;padding:30px}
.proof .mock .frame{width:100%;border:1px solid var(--line-d);border-radius:10px;background:#fff;color:var(--ink);overflow:hidden}
.proof .mock .bar{height:30px;background:var(--ink);display:flex;align-items:center;gap:5px;padding:0 12px}
.proof .mock .bar i{width:8px;height:8px;border-radius:50%;background:#3a3f4b;display:inline-block}
.proof .mock .body{padding:16px}
.proof .mock .body .h{height:12px;background:var(--ink);width:70%;border-radius:3px}
.proof .mock .body .l{height:8px;background:var(--paper-3);border-radius:3px;margin-top:8px}
.proof .mock .body .l.s{width:90%}.proof .mock .body .l.t{width:60%}
@media(max-width:820px){.proof .card{grid-template-columns:1fr}.proof .mock{display:none}}

/* ---------- Conhecimento / artigos do RAG ---------- */
.know .head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.know .head-row h2{font-size:clamp(26px,3.4vw,38px)}
.know .head-row p{color:var(--muted);margin-top:10px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card-art{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff;transition:.15s}
.card-art:hover{border-color:var(--ink);transform:translateY(-2px)}
.card-art .media{aspect-ratio:16/9;background:var(--paper-3);overflow:hidden}
.card-art .media img{width:100%;height:100%;object-fit:cover}
.card-art .media--ph{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef0f3,#e2e5ea)}
.card-art .media--ph svg{width:46px;height:46px;opacity:.5}
.card-art .pad{padding:20px;display:flex;flex-direction:column;flex:1}
.card-art .kx{font-family:var(--head);font-weight:700;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.card-art h3{font-size:19px;margin:8px 0 6px;letter-spacing:-.01em;line-height:1.2}
.card-art p{color:var(--muted);font-size:14px;flex:1}
.card-art .meta{margin-top:14px;font-size:12px;color:var(--muted-2);font-weight:600}
@media(max-width:860px){.cards{grid-template-columns:1fr}.know .head-row{flex-direction:column;align-items:flex-start}}

/* filtros (blog) */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:30px}
.chip{font-family:var(--head);font-weight:700;font-size:13px;padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--muted);cursor:pointer}
.chip:hover{border-color:var(--ink);color:var(--ink)}
.chip.active{background:var(--ink);border-color:var(--ink);color:#fff}

/* ---------- CTA band ---------- */
.cta-band{background:var(--accent);color:#fff;text-align:center}
.cta-band h2{font-size:clamp(28px,4vw,44px)}
.cta-band p{font-size:18px;opacity:.92;margin:14px auto 26px;max-width:54ch}

/* ---------- Footer ---------- */
.foot{background:var(--ink);color:#aab0bc;padding:56px 0 30px;font-size:14px}
.foot .top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;padding-bottom:32px;border-bottom:1px solid var(--line-d)}
.foot .brand b{color:#fff}
.foot h4{font-family:var(--head);color:#fff;font-size:13px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.foot ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.foot a:hover{color:#fff}
.foot .eng{margin-top:18px;font-size:12px;color:var(--muted-2);font-family:var(--head);letter-spacing:.02em}
.foot .legal{margin-top:18px;font-size:12px;color:var(--muted-2)}
@media(max-width:760px){.foot .top{grid-template-columns:1fr 1fr}}

/* ---------- Página de artigo ---------- */
.article-wrap{max-width:760px;margin:0 auto;padding:56px 24px 24px}
.article-wrap .back{font-weight:600;color:var(--muted);font-size:14px}
.article-wrap .back:hover{color:var(--accent)}
.article-kx{font-family:var(--head);font-weight:700;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:22px 0 10px}
.article-wrap h1{font-size:clamp(30px,4.4vw,46px);line-height:1.05}
.article-dek{font-size:20px;color:var(--muted);margin-top:14px}
.article-meta{font-size:13px;color:var(--muted-2);margin:18px 0 26px;padding-bottom:18px;border-bottom:1px solid var(--line);font-weight:600}
.article-hero{border-radius:var(--r);overflow:hidden;margin-bottom:26px}
.prose{font-size:18px;line-height:1.78;color:#22262e}
.prose h2{font-size:27px;margin:34px 0 12px}
.prose h3{font-size:21px;margin:26px 0 10px}
.prose p{margin-bottom:18px}
.prose ul,.prose ol{margin:0 0 18px 22px;display:flex;flex-direction:column;gap:8px}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.prose strong{font-weight:700;color:var(--ink)}

.empty{text-align:center;color:var(--muted);padding:50px 0;font-size:15px}
.skeleton{background:linear-gradient(90deg,#eef0f3 25%,#e2e5ea 50%,#eef0f3 75%);background-size:200% 100%;animation:sk 1.3s infinite}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------- Publicidade sutil + cross-site (institucional → showroom ao vivo) ---------- */
.promo-bar{background:var(--ink);color:#c7ccd6;font-family:var(--body);font-size:13px}
.promo-bar .wrap{display:flex;align-items:center;gap:10px;min-height:42px;max-width:var(--max);margin:0 auto;padding:8px 24px}
.promo-bar .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none;animation:pulse 1.8s infinite}
.promo-bar b{color:#fff;font-weight:700}
.promo-bar a{color:#fff;font-family:var(--head);font-weight:700;text-decoration:underline;text-underline-offset:2px;text-decoration-color:var(--accent);white-space:nowrap}
.promo-bar .x{margin-left:auto;cursor:pointer;background:none;border:0;color:var(--muted-2);font-size:18px;line-height:1;flex:none}
.promo-bar .x:hover{color:#fff}

.promo-pop{position:fixed;right:20px;bottom:20px;z-index:90;width:352px;max-width:calc(100vw - 40px);
  background:#fff;border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:14px;
  box-shadow:0 20px 48px rgba(0,0,0,.26);padding:20px;transform:translateY(22px);opacity:0;
  transition:transform .3s ease,opacity .3s ease;pointer-events:none}
.promo-pop.show{transform:translateY(0);opacity:1;pointer-events:auto}
.promo-pop .live{display:inline-flex;align-items:center;gap:8px;font-family:var(--head);font-weight:700;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:10px}
.promo-pop .live .d{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 1.8s infinite}
.promo-pop h4{font-family:var(--head);font-weight:800;font-size:19px;margin-bottom:8px;letter-spacing:-.01em}
.promo-pop p{font-size:14px;color:var(--muted);line-height:1.55;margin-bottom:16px}
.promo-pop .x{position:absolute;top:10px;right:12px;cursor:pointer;background:none;border:0;color:var(--muted);font-size:20px;line-height:1}
.promo-pop .x:hover{color:var(--ink)}
@media(max-width:480px){.promo-pop{right:10px;left:10px;bottom:10px;width:auto}}