/* ==========================================================================
   Kortex Tecnologia — folha de estilo principal
   Identidade: Brand Book v1.2 ("Rota Aberta")
   Tokens em :root. Para mudar cor ou fonte, altere só ali.
   ========================================================================== */

:root{
    --bg:#0D1117;
    --bg-2:#10151C;
    --surface:#161B22;
    --surface-2:#1B222B;
    --line:rgba(156,163,175,.14);
    --line-strong:rgba(156,163,175,.26);
    --text:#EAF0FA;
    --muted:#9CA3AF;
    --blue:#155EEF;
    --steel:#4F8CFF;
    --green:#34E39B;
    --grad:linear-gradient(92deg,var(--blue),var(--steel));
    --radius:16px;
    --font-display:'Space Grotesk',sans-serif;
    --font-body:'Inter',sans-serif;
    --font-mono:'JetBrains Mono',monospace;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    background:var(--bg);color:var(--text);
    font-family:var(--font-body);font-size:16px;line-height:1.65;
    -webkit-font-smoothing:antialiased;overflow-x:hidden;
  }
  ::selection{background:rgba(21,94,239,.28)}
  img{max-width:100%}
  a{color:inherit;text-decoration:none}
  .wrap{max-width:1160px;margin:0 auto;padding:0 24px}
  section{padding:96px 0;position:relative}

  /* ---------- utilidades de tipo ---------- */
  .eyebrow{
    font-family:var(--font-mono);font-size:12.5px;letter-spacing:.14em;
    text-transform:uppercase;color:var(--blue);display:inline-flex;
    align-items:center;gap:10px;margin-bottom:18px;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:var(--blue);display:inline-block}
  h1,h2,h3{font-family:var(--font-display);line-height:1.15;letter-spacing:-.015em}
  h2{font-size:clamp(28px,4vw,42px);font-weight:700;max-width:720px}
  .lead{color:var(--muted);font-size:18px;max-width:640px;margin-top:16px}
  .grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

  /* ---------- botões ---------- */
  .btn{
    display:inline-flex;align-items:center;gap:10px;
    font-family:var(--font-display);font-weight:600;font-size:15.5px;
    padding:15px 26px;border-radius:12px;cursor:pointer;border:none;
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
  }
  .btn-primary{background:var(--grad);color:#0D1117}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(21,94,239,.28)}
  .btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line-strong)}
  .btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
  .btn-lg{padding:18px 34px;font-size:17px}

  /* ---------- header ---------- */
  header{
    position:fixed;inset:0 0 auto 0;z-index:50;
    background:rgba(13,17,23,.72);backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .nav{display:flex;align-items:center;justify-content:space-between;height:72px}
  .logo{display:flex;align-items:center;gap:11px}
  .logo svg{width:34px;height:34px;flex:none;display:block}
  .logo-text{display:flex;flex-direction:column;justify-content:center;line-height:1}
  .logo-text .word{font-family:var(--font-display);font-weight:700;font-size:18px;letter-spacing:.03em;color:var(--text)}
  .logo-text .tag{font-family:var(--font-mono);font-size:8px;letter-spacing:.22em;color:var(--muted);margin-top:5px}
  .nav-links{display:flex;gap:30px;font-size:14.5px;color:var(--muted)}
  .nav-links a:hover{color:var(--text)}
  .nav .btn{padding:11px 20px;font-size:14px;white-space:nowrap;flex:none}
  .btn-label-short{display:none}
  .nav-toggle{display:none}

  /* ---------- hero ---------- */
  .hero{padding:170px 0 110px;overflow:hidden}
  .hero::before{
    content:"";position:absolute;top:-260px;left:50%;transform:translateX(-50%);
    width:900px;height:620px;border-radius:50%;
    background:radial-gradient(closest-side,rgba(21,94,239,.13),rgba(79,140,255,.07) 55%,transparent 75%);
    pointer-events:none;
  }
  .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
  .hero-badge{
    display:inline-flex;align-items:center;gap:9px;font-family:var(--font-mono);
    font-size:12.5px;color:var(--green);border:1px solid rgba(52,227,155,.3);
    background:rgba(52,227,155,.07);padding:7px 14px;border-radius:999px;margin-bottom:26px;
  }
  .dot{width:7px;height:7px;border-radius:50%;background:var(--green);animation:pulse 1.8s infinite}
  @keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(52,227,155,.5)}55%{box-shadow:0 0 0 7px rgba(52,227,155,0)}}
  .hero h1{font-size:clamp(36px,5.2vw,58px);font-weight:700}
  .hero .lead{font-size:19px;max-width:540px;margin-top:22px}
  .hero-ctas{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
  .hero-proof{display:flex;gap:34px;margin-top:46px;flex-wrap:wrap}
  .hero-proof div strong{display:block;font-family:var(--font-display);font-size:24px;font-weight:700}
  .hero-proof div span{font-size:13px;color:var(--muted)}

  /* ---------- chat demo (assinatura) ---------- */
  .chat{
    background:var(--surface);border:1px solid var(--line-strong);border-radius:20px;
    box-shadow:0 30px 80px rgba(0,0,0,.45),0 0 0 1px rgba(21,94,239,.05);
    display:flex;flex-direction:column;height:520px;max-width:440px;margin-left:auto;
  }
  .chat-head{display:flex;align-items:center;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line)}
  .chat-avatar{width:38px;height:38px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line-strong);display:grid;place-items:center;flex:none}
  .chat-avatar svg{width:20px;height:20px;display:block}
  .chat-head b{font-family:var(--font-display);font-size:15px;display:block}
  .chat-head small{font-family:var(--font-mono);font-size:11.5px;color:var(--green);display:flex;align-items:center;gap:6px}
  .chat-head small .dot{width:6px;height:6px}
  .chat-tag{margin-left:auto;font-family:var(--font-mono);font-size:10.5px;color:var(--muted);border:1px solid var(--line);padding:4px 9px;border-radius:6px}
  .chat-body{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:12px;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}
  .msg{max-width:82%;padding:11px 15px;border-radius:14px;font-size:14.5px;line-height:1.55;animation:msgIn .3s ease both}
  @keyframes msgIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
  .msg-ai{background:var(--surface-2);border:1px solid var(--line);border-bottom-left-radius:4px;align-self:flex-start}
  .msg-user{background:rgba(21,94,239,.13);border:1px solid rgba(21,94,239,.25);border-bottom-right-radius:4px;align-self:flex-end}
  .typing{display:inline-flex;gap:5px;padding:14px 16px}
  .typing i{width:6px;height:6px;border-radius:50%;background:var(--muted);animation:blink 1.2s infinite}
  .typing i:nth-child(2){animation-delay:.18s}.typing i:nth-child(3){animation-delay:.36s}
  @keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}
  .chat-options{padding:14px 18px;border-top:1px solid var(--line);display:flex;gap:9px;flex-wrap:wrap}
  .chip{
    font-size:13px;font-weight:500;padding:9px 15px;border-radius:999px;cursor:pointer;
    background:transparent;color:var(--blue);border:1px solid rgba(21,94,239,.35);
    transition:background .15s,transform .15s;font-family:var(--font-body);
  }
  .chip:hover{background:rgba(21,94,239,.1);transform:translateY(-1px)}
  .chat-note{font-family:var(--font-mono);font-size:11px;color:var(--muted);text-align:center;padding:0 18px 14px}

  /* ---------- problema ---------- */
  .section-dark{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:48px}
  .pain{
    display:flex;gap:16px;align-items:flex-start;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  }
  .pain-time{font-family:var(--font-mono);font-size:12.5px;color:var(--steel);flex:none;padding-top:3px;min-width:52px}
  .pain b{font-family:var(--font-display);font-weight:600;font-size:16.5px;display:block;margin-bottom:5px}
  .pain p{color:var(--muted);font-size:14.5px}
  .pain-close{margin-top:40px;font-family:var(--font-display);font-size:clamp(20px,2.6vw,26px);font-weight:600;max-width:680px}

  /* ---------- agentes ---------- */
  .agents{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:52px}
  .agent{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:26px;transition:transform .2s ease,border-color .2s ease;position:relative;overflow:hidden;
  }
  .agent:hover{transform:translateY(-4px);border-color:rgba(21,94,239,.4)}
  .agent-icon{
    width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
    background:rgba(21,94,239,.09);border:1px solid rgba(21,94,239,.22);
  }
  .agent-icon svg{width:21px;height:21px;stroke:var(--blue);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
  .agent h3{font-size:17px;font-weight:600;margin-bottom:8px}
  .agent p{color:var(--muted);font-size:14.5px}
  .agent-status{position:absolute;top:22px;right:22px;font-family:var(--font-mono);font-size:10.5px;color:var(--green);display:flex;align-items:center;gap:6px}
  .agent-status .dot{width:5px;height:5px}

  /* ---------- serviços ---------- */
  .services{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:52px}
  .service{
    background:linear-gradient(160deg,var(--surface),var(--bg-2));
    border:1px solid var(--line);border-radius:var(--radius);padding:32px;
  }
  .service h3{font-size:19px;font-weight:600;margin-bottom:10px}
  .service p{color:var(--muted);font-size:15px}
  .service .num{font-family:var(--font-mono);font-size:12px;color:var(--steel);display:block;margin-bottom:16px}

  /* ---------- como funciona ---------- */
  .steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:60px;counter-reset:step}
  .step{position:relative;padding:0 22px 0 0}
  .step::before{
    counter-increment:step;content:"0" counter(step);
    font-family:var(--font-mono);font-size:13px;color:var(--blue);
    display:block;margin-bottom:16px;
  }
  .step::after{
    content:"";position:absolute;top:9px;left:0;right:22px;height:1px;
    background:linear-gradient(90deg,var(--line-strong),transparent);
  }
  .step:first-child::after{background:linear-gradient(90deg,var(--blue),var(--line-strong) 60%,transparent)}
  .step b{font-family:var(--font-display);font-weight:600;font-size:16px;display:block;margin-bottom:8px}
  .step p{color:var(--muted);font-size:13.5px}

  /* ---------- casos de uso ---------- */
  .segments{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:52px}
  .segment{
    background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px;
    transition:border-color .2s;
  }
  .segment:hover{border-color:rgba(79,140,255,.45)}
  .segment b{font-family:var(--font-display);font-weight:600;font-size:15.5px;display:block;margin-bottom:6px}
  .segment p{color:var(--muted);font-size:13px;line-height:1.5}

  /* ---------- tecnologias ---------- */
  .tech-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:52px}
  .tech{border-left:1px solid var(--line-strong);padding-left:20px}
  .tech b{font-family:var(--font-display);font-weight:600;font-size:15.5px;display:block;margin-bottom:7px;color:var(--text)}
  .tech p{color:var(--muted);font-size:13.5px}

  /* ---------- prova social ---------- */
  .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:52px}
  .metric{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:30px 26px;text-align:left;
  }
  .metric strong{font-family:var(--font-display);font-size:clamp(30px,3.4vw,40px);font-weight:700;display:block}
  .metric span{color:var(--muted);font-size:14px;display:block;margin-top:6px}

  /* ---------- FAQ ---------- */
  .faq{max-width:760px;margin:52px auto 0}
  .faq details{border-bottom:1px solid var(--line)}
  .faq summary{
    cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;
    padding:22px 4px;font-family:var(--font-display);font-weight:600;font-size:16.5px;gap:20px;
  }
  .faq summary::-webkit-details-marker{display:none}
  .faq summary::after{content:"+";font-family:var(--font-mono);color:var(--blue);font-size:20px;transition:transform .2s;flex:none}
  .faq details[open] summary::after{transform:rotate(45deg)}
  .faq details p{color:var(--muted);padding:0 4px 24px;font-size:15px;max-width:640px}

  /* ---------- CTA final ---------- */
  .cta-final{
    text-align:center;padding:120px 0;
    background:
      radial-gradient(600px 300px at 50% 0%,rgba(79,140,255,.12),transparent),
      var(--bg-2);
    border-top:1px solid var(--line);
  }
  .cta-final h2{margin:0 auto;max-width:760px;font-size:clamp(30px,4.4vw,46px)}
  .cta-final .lead{margin:20px auto 0}
  .cta-final .btn{margin-top:40px}
  .cta-sub{font-family:var(--font-mono);font-size:12.5px;color:var(--muted);margin-top:18px}

  /* ---------- footer ---------- */
  footer{border-top:1px solid var(--line);padding:56px 0 40px;color:var(--muted);font-size:14px}
  .foot{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
  .foot-links{display:flex;gap:26px;flex-wrap:wrap}
  .foot-links a:hover{color:var(--text)}
  .foot-copy{margin-top:34px;font-size:12.5px;color:rgba(151,161,182,.6)}

  /* ---------- reveal ---------- */
  .reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
  .reveal.in{opacity:1;transform:none}
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation:none!important;transition:none!important}
    .reveal{opacity:1;transform:none}
    html{scroll-behavior:auto}
  }
  :focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:4px}

  /* ---------- responsivo ---------- */
  @media (max-width:1020px){
    .agents{grid-template-columns:repeat(2,1fr)}
    .steps{grid-template-columns:repeat(2,1fr);gap:34px 0}
    .step::after{right:30px}
    .segments,.tech-grid,.metrics{grid-template-columns:repeat(2,1fr)}
  }
  @media (max-width:860px){
    .hero{padding:130px 0 80px}
    .hero-grid{grid-template-columns:1fr;gap:48px}
    .chat{margin:0 auto;max-width:100%;height:480px}
    .nav-links{display:none}
    .pain-grid,.services{grid-template-columns:1fr}
    section{padding:72px 0}
  }
  @media (max-width:560px){
    .agents,.segments,.tech-grid,.metrics{grid-template-columns:1fr}
    .steps{grid-template-columns:1fr}
    .hero-proof{gap:24px}
    .tech{border-left:none;border-top:1px solid var(--line-strong);padding:16px 0 0}
    .nav .btn{padding:9px 14px;font-size:12.5px}
    .btn-label-full{display:none}
    .btn-label-short{display:inline}
    .logo{gap:9px}
    .logo svg{width:28px;height:28px}
    .logo-text .word{font-size:16px}
    .logo-text .tag{font-size:7px;margin-top:4px}
  }

/* ---------- Bloco de garantia ---------- */
.garantia-box{max-width:720px;margin:0 auto;background:var(--surface);border:1px solid var(--line-strong);
  border-radius:var(--radius);padding:clamp(28px,4vw,40px);text-align:center}
.garantia-selo{width:60px;height:60px;margin:0 auto 18px;border-radius:50%;background:rgba(79,140,255,.12);
  display:grid;place-items:center}
.garantia-box p{color:var(--muted);margin:0;font-size:15.5px;max-width:56ch;margin-inline:auto}

/* ---------- Formulário de captura dentro do chat ---------- */
.chat-form{display:flex;flex-direction:column;gap:9px;width:100%}
.chat-form input[type=text],.chat-form input:not([type]),.chat-form input[inputmode=tel]{
  width:100%;padding:12px 13px;border:1px solid var(--line-strong);border-radius:10px;
  background:var(--surface-2);color:var(--text);font-family:var(--font-body);font-size:15px}
.chat-form input:focus{outline:0;border-color:var(--steel);box-shadow:0 0 0 3px rgba(79,140,255,.2)}
.chat-form input.erro{border-color:#FF6B5E}
.chat-form .btn{justify-content:center;width:100%}
.chat-form .chip{width:100%;justify-content:center;text-align:center}
.chat-consent{display:flex;gap:8px;align-items:flex-start;font-size:11.5px;color:var(--muted);line-height:1.45}
.chat-consent input{width:15px;height:15px;flex:0 0 auto;margin-top:2px;accent-color:var(--steel)}
.chat-consent.erro{color:#FF6B5E}
.chat-consent a{color:var(--steel)}