/* ============================================================
   ITool — Inteligência & Cibersegurança
   Design tokens
   ============================================================ */
:root{
  --ink:#0E1B26;
  --navy:#11354F;
  --paper:#F4F7F9;
  --surface:#FFFFFF;
  --steel:#52677A;
  --line:#D4DDE4;
  --signal:#DC5418;
  --signal-dark:#B5430F;
  --mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:'IBM Plex Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --display:'Saira',var(--sans);
  --maxw:1120px;
  --radius:3px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  font-family:var(--sans);
  font-size:1.0625rem;
  line-height:1.65;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--signal-dark);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible,button:focus-visible{outline:3px solid var(--signal);outline-offset:2px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;background:var(--ink);color:#fff;padding:10px 16px;z-index:100}
.skip-link:focus{left:12px;top:12px}

/* ---------- Eyebrow / labels (mono) ---------- */
.eyebrow{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--steel);
  display:flex;align-items:center;gap:12px;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--signal)}
.eyebrow .code{color:var(--signal-dark)}

/* ---------- Header ---------- */
.site-header{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:50;
}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.brand{display:flex;flex-direction:column;line-height:1.05;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-name{font-family:var(--display);font-weight:700;font-size:1.35rem;letter-spacing:.02em;color:var(--ink)}
.brand-name span{color:var(--signal)}
.brand-tag{font-family:var(--mono);font-size:.58rem;letter-spacing:.22em;text-transform:uppercase;color:var(--steel)}
.nav-links{display:flex;gap:26px;list-style:none;align-items:center}
.nav-links a{color:var(--ink);font-size:.92rem;font-weight:500}
.nav-links a:hover{color:var(--signal-dark);text-decoration:none}
.nav-links a[aria-current="page"]{color:var(--signal-dark);border-bottom:2px solid var(--signal)}
.nav-cta{background:var(--ink);color:#fff!important;padding:9px 18px;border-radius:var(--radius);font-weight:600}
.nav-cta:hover{background:var(--navy)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:var(--radius);padding:8px 12px;font-family:var(--mono);font-size:.8rem;cursor:pointer;color:var(--ink)}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(180deg,var(--ink) 0%,var(--navy) 130%);
  color:#E9EFF3;
  position:relative;
  overflow:hidden;
}
.hero::after{ /* régua batimétrica — assinatura visual */
  content:"";
  position:absolute;top:0;bottom:0;right:34px;width:1px;
  background:repeating-linear-gradient(180deg,
    rgba(233,239,243,.45) 0 1px,transparent 1px 24px);
}
.hero .wrap{padding-top:84px;padding-bottom:92px;position:relative}
.hero .eyebrow{color:#9FB4C2}
.hero h1{
  font-family:var(--display);font-weight:700;
  font-size:clamp(2rem,4.6vw,3.4rem);
  line-height:1.12;letter-spacing:-.01em;
  max-width:18ch;margin-bottom:22px;
}
.hero h1 em{font-style:normal;color:var(--signal)}
.hero .lead{font-size:1.15rem;max-width:56ch;color:#C4D2DC;margin-bottom:36px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 26px;border-radius:var(--radius);font-weight:600;font-size:.97rem;text-decoration:none}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--signal);color:#fff}
.btn-primary:hover{background:var(--signal-dark)}
.btn-ghost{border:1px solid rgba(233,239,243,.4);color:#E9EFF3}
.btn-ghost:hover{border-color:var(--signal);color:#fff}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--navy)}
.hero-sectors{
  margin-top:54px;padding-top:22px;border-top:1px solid rgba(233,239,243,.18);
  font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:#8AA1B1;
}
.hero-sectors strong{color:#C4D2DC;font-weight:500}

/* ---------- Sections ---------- */
.section{padding:76px 0}
.section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section h2{
  font-family:var(--display);font-weight:600;
  font-size:clamp(1.5rem,3vw,2.15rem);line-height:1.18;
  max-width:26ch;margin-bottom:18px;
}
.section .intro{max-width:62ch;color:var(--steel);margin-bottom:40px;font-size:1.05rem}

/* ---------- Service grid ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.svc-card{background:var(--surface);padding:26px 24px;display:flex;flex-direction:column;gap:10px;position:relative}
.svc-card:hover{background:#FBFCFD}
.svc-card .code{font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;color:var(--steel)}
.svc-card h3{font-family:var(--display);font-weight:600;font-size:1.12rem;line-height:1.25}
.svc-card h3 a{color:var(--ink)}
.svc-card h3 a::after{content:"";position:absolute;inset:0}
.svc-card h3 a:hover{color:var(--signal-dark);text-decoration:none}
.svc-card p{font-size:.92rem;color:var(--steel);line-height:1.55}
.svc-card .go{margin-top:auto;font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;color:var(--signal-dark)}

/* ---------- Method (consultivo) ---------- */
.method{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.method-step{border-top:3px solid var(--signal);padding-top:16px}
.method-step .num{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;color:var(--steel);display:block;margin-bottom:8px}
.method-step h3{font-family:var(--display);font-size:1.05rem;font-weight:600;margin-bottom:8px}
.method-step p{font-size:.92rem;color:var(--steel)}

/* ---------- Prose (páginas internas) ---------- */
.page-head{background:var(--surface);border-bottom:1px solid var(--line);padding:56px 0 44px}
.page-head h1{font-family:var(--display);font-weight:700;font-size:clamp(1.7rem,3.6vw,2.6rem);line-height:1.15;max-width:24ch;margin-bottom:14px}
.page-head .lead{font-size:1.12rem;color:var(--steel);max-width:60ch}
.breadcrumb{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--steel);margin-bottom:26px}
.breadcrumb a{color:var(--steel)}
.breadcrumb a:hover{color:var(--signal-dark)}
.prose{max-width:72ch}
.prose h2{font-family:var(--display);font-weight:600;font-size:1.45rem;margin:44px 0 14px}
.prose h3{font-family:var(--display);font-weight:600;font-size:1.12rem;margin:28px 0 10px}
.prose p{margin-bottom:16px}
.prose ul{margin:0 0 18px 22px}
.prose li{margin-bottom:8px}
.prose strong{color:var(--ink)}
.two-col{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.side-box{background:var(--surface);border:1px solid var(--line);border-top:3px solid var(--signal);padding:22px}
.side-box h3{font-family:var(--display);font-size:1rem;font-weight:600;margin-bottom:10px}
.side-box ul{list-style:none}
.side-box li{font-size:.88rem;padding:7px 0;border-bottom:1px solid var(--line)}
.side-box li:last-child{border-bottom:none}
.side-box .btn{width:100%;text-align:center;margin-top:6px}
.side-box p{font-size:.88rem;color:var(--steel)}

/* ---------- FAQ ---------- */
.faq{max-width:72ch}
.faq details{border:1px solid var(--line);background:var(--surface);margin-bottom:10px;border-radius:var(--radius)}
.faq summary{cursor:pointer;padding:16px 20px;font-weight:600;font-family:var(--display);font-size:1rem;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--signal-dark)}
.faq details[open] summary::after{content:"−"}
.faq .faq-a{padding:0 20px 18px;color:var(--steel);font-size:.96rem}

/* ---------- CTA band ---------- */
.cta-band{background:var(--ink);color:#E9EFF3;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;top:0;bottom:0;right:34px;width:1px;background:repeating-linear-gradient(180deg,rgba(233,239,243,.4) 0 1px,transparent 1px 24px)}
.cta-band .wrap{padding:64px 24px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-family:var(--display);font-weight:600;font-size:clamp(1.4rem,2.8vw,2rem);max-width:24ch}
.cta-band p{color:#9FB4C2;margin-top:8px;max-width:50ch}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.contact-card{background:var(--surface);border:1px solid var(--line);padding:30px}
.contact-card h3{font-family:var(--display);font-weight:600;margin-bottom:10px}
.contact-card p{color:var(--steel);font-size:.95rem;margin-bottom:14px}
.contact-card .big{font-family:var(--mono);font-size:1.05rem;color:var(--ink);word-break:break-all}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#9FB4C2;margin-top:0}
.site-footer .wrap{padding:56px 24px 36px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.site-footer h4{font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:#E9EFF3;margin-bottom:14px}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:8px;font-size:.88rem}
.site-footer a{color:#9FB4C2}
.site-footer a:hover{color:#fff}
.footer-brand .brand-name{color:#fff;font-size:1.4rem}
.footer-brand p{font-size:.88rem;max-width:34ch;margin-top:12px}
.footer-bottom{border-top:1px solid rgba(233,239,243,.15);padding-top:22px;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- Responsive ---------- */
@media (max-width:920px){
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .method{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr}
  .sidebar{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .svc-grid{grid-template-columns:1fr}
  .method{grid-template-columns:1fr}
  .nav-links{
    display:none;position:absolute;top:68px;left:0;right:0;
    background:var(--surface);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:flex-start;padding:18px 24px;gap:16px;
  }
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .hero::after,.cta-band::after{display:none}
  .hero .wrap{padding-top:56px;padding-bottom:64px}
  .section{padding:56px 0}
}