:root{
  /* grafite — base neutra técnica, fundo escuro dominante */
  --bg-0:#0c0d10;
  --bg-1:#16181c;
  --bg-2:#1e2125;
  --line-dark:#34383e;
  --text-onDark:#f2f1ee;
  --text-onDark-muted:#9aa0a8;

  /* branco quebrado — base neutra clara */
  --paper:#f3f1ec;
  --paper-1:#eae7e0;
  --ink:#14161a;
  --ink-muted:#5a5f66;
  --line-light:#ddd9d0;

  /* identidade Tech LT — reservada pra acento, não fundo dominante */
  --navy:#0b1f4a;
  --navy-deep:#071531;
  --gold:#c9982f;
  --gold-bright:#e0ab3c;

  --radius:2px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:'Inter',ui-sans-serif,'Segoe UI',Arial,sans-serif;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4,p{ margin:0; }
section{ scroll-margin-top:80px; }
main{ display:block; }

.skip-link{
  position:absolute; left:-9999px; top:0; z-index:200;
  background:var(--gold-bright); color:var(--navy-deep); font-weight:800; font-size:13px;
  padding:10px 18px;
}
.skip-link:focus{ left:16px; top:16px; }

:focus-visible{ outline:2px solid var(--gold-bright); outline-offset:2px; }

.container{ width:100%; max-width:1240px; margin:0 auto; padding:0 24px; }

.mono{ font-family:'IBM Plex Mono',ui-monospace,'Courier New',monospace; }

.eyebrow{
  font-family:'IBM Plex Mono',ui-monospace,monospace;
  font-size:11.5px; font-weight:500; letter-spacing:.16em; text-transform:uppercase;
  color:var(--gold);
  display:flex; align-items:center; gap:10px;
}
.eyebrow::before{ content:""; width:22px; height:1px; background:var(--gold); display:inline-block; }
.eyebrow.on-dark{ color:var(--gold-bright); }

.section-num{
  font-family:'IBM Plex Mono',ui-monospace,monospace;
  font-size:13px; color:var(--gold); letter-spacing:.05em;
}

h1.page-h1{ font-size:clamp(30px,4.4vw,46px); font-weight:800; letter-spacing:-.02em; line-height:1.12; color:var(--ink); }
h2.section-title{ font-size:clamp(24px,3.4vw,34px); font-weight:800; letter-spacing:-.02em; line-height:1.16; color:var(--ink); margin-top:10px; }
h2.section-title.on-dark{ color:var(--text-onDark); }
.section-lede{ font-size:16px; line-height:1.7; color:var(--ink-muted); margin-top:16px; max-width:640px; }
.section-lede.on-dark{ color:var(--text-onDark-muted); }

.hairline{ height:1px; background:var(--line-light); border:none; }
.hairline.on-dark{ background:var(--line-dark); }

.section{ padding:96px 0; }
.section.tight{ padding:64px 0; }
.on-dark{ color:var(--text-onDark); }
.surface-dark{ background:var(--bg-0); color:var(--text-onDark); }
.surface-dark-alt{ background:var(--bg-1); color:var(--text-onDark); }

/* corner ticks — moldura técnica pra fotos/blocos-chave */
.ticked{ position:relative; }
.ticked::before,.ticked::after{
  content:""; position:absolute; width:16px; height:16px; pointer-events:none; z-index:2;
}
.ticked::before{ top:-1px; left:-1px; border-top:1.5px solid var(--gold-bright); border-left:1.5px solid var(--gold-bright); }
.ticked::after{ bottom:-1px; right:-1px; border-bottom:1.5px solid var(--gold-bright); border-right:1.5px solid var(--gold-bright); }

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:inherit; font-weight:700; font-size:14px; letter-spacing:.01em;
  padding:14px 24px; border-radius:var(--radius); border:1px solid transparent; cursor:pointer;
  transition:background-color .15s ease, border-color .15s ease, color .15s ease;
}
.btn-primary{ background:var(--gold-bright); color:var(--navy-deep); }
.btn-primary:hover{ background:#ecbd5a; }
.btn-outline-dark{ border-color:rgba(242,241,238,.4); color:var(--text-onDark); }
.btn-outline-dark:hover{ border-color:var(--text-onDark); }
.btn-outline-light{ border-color:var(--ink); color:var(--ink); }
.btn-outline-light:hover{ background:var(--ink); color:var(--paper); }
.btn-block{ width:100%; }
.btn-sm{ padding:10px 18px; font-size:13px; }

/* ---------- SKIP / A11Y helper ---------- */
.visually-hidden{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; }

/* ---------- NAV ---------- */
.nav{
  position:sticky; top:0; z-index:100; background:var(--paper);
  border-bottom:1px solid transparent;
}
.nav.scrolled{ border-color:var(--line-light); }
.nav-inner{ display:flex; align-items:center; justify-content:space-between; height:74px; gap:24px; }
.nav-logo img{ height:26px; width:auto; }
.nav-links{ display:flex; align-items:center; gap:30px; }
.nav-links > li{ position:relative; }
.nav-links > li > a{ font-size:13.5px; font-weight:600; color:var(--ink); opacity:.78; transition:opacity .15s; display:flex; align-items:center; gap:4px; padding:8px 0; }
.nav-links > li > a:hover, .nav-links > li.open > a{ opacity:1; }
.nav-cta{ display:flex; align-items:center; gap:14px; }
.nav-links > li > a.nav-cta-mobile{ display:none; }
.nav-toggle{ display:none; width:38px; height:38px; border:1px solid var(--line-light); border-radius:2px; background:var(--paper); align-items:center; justify-content:center; cursor:pointer; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:""; display:block; width:16px; height:1.5px; background:var(--ink); position:relative; transition:.2s;
}
.nav-toggle span::before{ position:absolute; top:-5px; }
.nav-toggle span::after{ position:absolute; top:5px; }
.nav-toggle.open span{ background:transparent; }
.nav-toggle.open span::before{ top:0; transform:rotate(45deg); }
.nav-toggle.open span::after{ top:0; transform:rotate(-45deg); }

/* mega menu — serviços por categoria */
.mega{
  position:absolute; top:100%; left:50%; transform:translateX(-50%);
  width:640px; background:var(--paper); border:1px solid var(--line-light);
  box-shadow:0 20px 44px rgba(12,13,16,.14);
  padding:26px; display:none; grid-template-columns:repeat(2,1fr); gap:22px 30px;
}
.nav-links > li:hover .mega,
.nav-links > li:focus-within .mega{ display:grid; }
.mega-col .g{ font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:10.5px; letter-spacing:.1em; text-transform:uppercase; color:var(--gold); margin-bottom:10px; }
.mega-col a{ display:block; font-size:13.5px; font-weight:600; color:var(--ink); padding:6px 0; opacity:.86; }
.mega-col a:hover{ opacity:1; text-decoration:underline; text-underline-offset:3px; }
.mega-all{ grid-column:1 / -1; border-top:1px solid var(--line-light); padding-top:14px; margin-top:4px; font-size:13px; font-weight:700; color:var(--navy); }

/* ---------- HERO ---------- */
.hero{ position:relative; min-height:88vh; display:flex; align-items:flex-end; color:var(--text-onDark); overflow:hidden; }
.hero-media{ position:absolute; inset:0; z-index:0; }
.hero-media img{ width:100%; height:100%; object-fit:cover; }
.hero-media::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(8,10,14,.25) 0%, rgba(8,10,14,.45) 45%, rgba(6,7,10,.92) 100%);
}
.hero-inner{ position:relative; z-index:1; padding:64px 0 64px; width:100%; }
.hero-inner .eyebrow{ color:var(--gold-bright); }
.hero h1{ font-size:clamp(34px,5.6vw,58px); font-weight:800; line-height:1.06; letter-spacing:-.02em; margin-top:18px; max-width:760px; }
.hero .lede{ font-size:17px; line-height:1.7; color:#d8d7d2; margin-top:20px; max-width:560px; }
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:32px; }
.hero-credit{ margin-top:40px; font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:11px; color:#9aa0a8; letter-spacing:.04em; }

/* ---------- VISÃO INTEGRADA ---------- */
.chain-wrap{ margin-top:56px; overflow-x:auto; padding-bottom:8px; }
.chain{ display:flex; align-items:flex-start; min-width:760px; }
.chain-node{ flex:1; position:relative; padding-top:26px; }
.chain-node .line{ position:absolute; top:9px; left:0; right:0; height:1px; background:var(--line-dark); }
.chain-node:first-child .line{ left:50%; }
.chain-node:last-child .line{ right:50%; }
.chain-dot{ position:absolute; top:4px; left:50%; transform:translateX(-50%); width:11px; height:11px; border-radius:50%; background:var(--bg-0); border:1.5px solid var(--gold-bright); }
.chain-node .idx{ display:block; text-align:center; font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:11px; color:var(--gold); margin-bottom:6px; }
.chain-node .lbl{ display:block; text-align:center; font-size:13.5px; font-weight:700; color:var(--text-onDark); }

/* ---------- SERVIÇOS — índice editorial (não card) ---------- */
.svc-index{ margin-top:8px; }
.svc-group-block + .svc-group-block{ margin-top:52px; }
.svc-group-head{ display:flex; align-items:baseline; gap:14px; padding-bottom:16px; border-bottom:1px solid var(--line-light); margin-bottom:4px; }
.svc-group-head .section-num{ font-size:22px; }
.svc-group-head h3{ font-size:16px; font-weight:700; letter-spacing:.01em; color:var(--ink); text-transform:uppercase; }
.svc-group-head.on-dark{ border-color:var(--line-dark); }
.svc-group-head.on-dark h3{ color:var(--text-onDark); }

.svc-row{
  display:grid; grid-template-columns:64px 1fr auto; align-items:center; gap:22px;
  padding:22px 0; border-bottom:1px solid var(--line-light);
  transition:padding-left .2s ease;
}
.svc-row:hover{ padding-left:8px; }
.svc-row .n{ font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:13px; color:var(--gold); }
.svc-row .t h4{ font-size:16.5px; font-weight:700; color:var(--ink); }
.svc-row .t p{ font-size:13.5px; color:var(--ink-muted); margin-top:5px; line-height:1.55; max-width:520px; }
.svc-row .go{ font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:12px; color:var(--ink-muted); white-space:nowrap; opacity:0; transition:opacity .2s; }
.svc-row:hover .go{ opacity:1; color:var(--navy); }
.on-dark .svc-row{ border-color:var(--line-dark); }
.on-dark .svc-row .t h4{ color:var(--text-onDark); }
.on-dark .svc-row .t p{ color:var(--text-onDark-muted); }
.on-dark .svc-row:hover .go{ color:var(--gold-bright); }

/* ---------- TECNOLOGIA — blocos alternados ---------- */
.tech-block{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.tech-block + .tech-block{ margin-top:88px; }
.tech-block.rev .tech-media{ order:2; }
.tech-media{ position:relative; aspect-ratio:4/3; overflow:hidden; }
.tech-media img{ width:100%; height:100%; object-fit:cover; }
.tech-idx{ font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:13px; color:var(--gold); }
.tech-text h3{ font-size:24px; font-weight:800; color:var(--text-onDark); margin-top:10px; letter-spacing:-.01em; }
.tech-text p{ font-size:14.5px; line-height:1.75; color:var(--text-onDark-muted); margin-top:14px; }
.tech-specs{ display:flex; gap:22px; margin-top:20px; flex-wrap:wrap; }
.tech-specs .spec{ border-left:1.5px solid var(--gold-bright); padding-left:10px; }
.tech-specs .spec b{ display:block; font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:18px; color:var(--text-onDark); }
.tech-specs .spec span{ font-size:11px; color:var(--text-onDark-muted); text-transform:uppercase; letter-spacing:.08em; }
.tech-link{ margin-top:20px; display:inline-block; font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:12.5px; color:var(--gold-bright); border-bottom:1px solid rgba(224,171,60,.4); padding-bottom:2px; }

/* ---------- DIFERENCIAL ---------- */
.diff-list{ display:grid; grid-template-columns:repeat(3,1fr); gap:0; margin-top:52px; border-top:1px solid var(--line-dark); }
.diff-item{ padding:26px 26px 0; border-right:1px solid var(--line-dark); }
.diff-item:last-child{ border-right:none; }
.diff-item .tag{ font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--gold); }
.diff-item h4{ font-size:19px; font-weight:800; color:var(--text-onDark); margin-top:12px; }
.diff-item p{ font-size:13.5px; color:var(--text-onDark-muted); line-height:1.6; margin-top:10px; }

/* ---------- QUEM SOMOS ---------- */
.about-layout{ display:grid; grid-template-columns:1.2fr .8fr; gap:60px; align-items:start; }
.about-copy p{ font-size:16px; line-height:1.85; color:var(--ink); }
.about-copy p + p{ margin-top:18px; }
.about-figure{ position:relative; aspect-ratio:3/4; overflow:hidden; }
.about-figure img{ width:100%; height:100%; object-fit:cover; }

/* ---------- SERVICE PAGE ---------- */
.breadcrumb{ font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:11.5px; color:var(--ink-muted); display:flex; gap:8px; flex-wrap:wrap; }
.breadcrumb a{ color:var(--ink-muted); }
.breadcrumb a:hover{ color:var(--navy); text-decoration:underline; }
.breadcrumb .sep{ opacity:.5; }
.svc-hero{ position:relative; }
.svc-hero-media{ position:relative; height:46vh; min-height:340px; overflow:hidden; }
.svc-hero-media img{ width:100%; height:100%; object-fit:cover; }
.svc-hero-media::after{ content:""; position:absolute; inset:0; background:linear-gradient(180deg, rgba(8,10,14,.15), rgba(8,10,14,.7)); }
.svc-hero-text{ position:absolute; left:0; right:0; bottom:0; padding:40px 0; z-index:1; color:var(--text-onDark); }
.svc-layout{ display:grid; grid-template-columns:1fr 320px; gap:64px; align-items:start; }
.svc-body p{ font-size:16px; line-height:1.8; color:var(--ink); }
.svc-alt-name{ font-size:13px; color:var(--ink-muted); margin-top:10px; }
.svc-activities{ margin-top:40px; }
.svc-activities h2{ font-size:13px; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--ink); font-family:'IBM Plex Mono',ui-monospace,monospace; }
.svc-activities ul{ margin-top:18px; display:flex; flex-direction:column; gap:12px; }
.svc-activities li{ font-size:15px; line-height:1.6; color:var(--ink); padding-left:22px; position:relative; }
.svc-activities li::before{ content:""; position:absolute; left:0; top:9px; width:10px; height:1px; background:var(--gold); }
.svc-note{ margin-top:30px; padding:16px 18px; border-left:2px solid var(--gold); background:var(--paper-1); font-size:13.5px; color:var(--ink-muted); line-height:1.6; }
.svc-side{ position:sticky; top:100px; display:flex; flex-direction:column; gap:26px; }
.svc-spec-box{ border:1px solid var(--line-light); padding:20px; }
.svc-spec-box .spec + .spec{ margin-top:14px; padding-top:14px; border-top:1px solid var(--line-light); }
.svc-spec-box .spec b{ display:block; font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:20px; color:var(--navy); }
.svc-spec-box .spec span{ font-size:11px; color:var(--ink-muted); text-transform:uppercase; letter-spacing:.06em; }
.svc-cta-box{ background:var(--bg-0); color:var(--text-onDark); padding:26px; }
.svc-cta-box h4{ font-size:16px; font-weight:800; }
.svc-cta-box p{ font-size:13px; color:var(--text-onDark-muted); margin-top:8px; line-height:1.6; }
.svc-cta-box .btn{ margin-top:16px; }
.svc-related{ margin-top:64px; padding-top:40px; border-top:1px solid var(--line-light); }
.svc-related h3{ font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:12px; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-muted); margin-bottom:20px; }

/* ---------- SERVIÇOS ÍNDICE (página /servicos/) ---------- */
.svc-index-hero{ padding-top:56px; }

/* ---------- CONTATO ---------- */
.contact-layout{ display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:start; }
.contact-card{ border:1px solid var(--line-light); padding:26px; }
.contact-row{ display:flex; flex-direction:column; gap:4px; }
.contact-row + .contact-row{ margin-top:20px; padding-top:20px; border-top:1px solid var(--line-light); }
.contact-row small{ font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:10.5px; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-muted); }
.contact-row b{ font-size:15.5px; color:var(--ink); }

.field{ margin-bottom:18px; }
.field label{ display:block; font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:11px; letter-spacing:.05em; text-transform:uppercase; color:var(--ink-muted); margin-bottom:8px; }
.field input, .field select, .field textarea{
  width:100%; font-family:inherit; font-size:14.5px; color:var(--ink);
  border:1px solid var(--line-light); border-radius:var(--radius); padding:12px 14px; background:var(--paper);
  transition:border-color .15s;
}
.field input:focus, .field select:focus, .field textarea:focus{ outline:none; border-color:var(--navy); }
.field textarea{ resize:vertical; min-height:100px; }
.form-note{ font-size:12px; color:var(--ink-muted); margin-top:14px; text-align:center; }

/* ---------- FOOTER ---------- */
.footer{ background:var(--navy-deep); color:#c9d3e6; padding:60px 0 26px; }
.footer-grid{ display:grid; grid-template-columns:1.3fr 1fr 1fr; gap:40px; }
.footer-logo img{ height:24px; }
.footer-col h5{ font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:11px; font-weight:500; letter-spacing:.1em; text-transform:uppercase; color:#fff; margin-bottom:16px; }
.footer-col ul{ display:flex; flex-direction:column; gap:10px; }
.footer-col a{ font-size:13.5px; opacity:.82; transition:opacity .15s; }
.footer-col a:hover{ opacity:1; }
.footer-tagline{ font-size:13.5px; opacity:.75; margin-top:16px; line-height:1.6; max-width:280px; }
.footer-bottom{ margin-top:44px; padding-top:22px; border-top:1px solid rgba(255,255,255,.14); font-size:11.5px; opacity:.6; font-family:'IBM Plex Mono',ui-monospace,monospace; }

/* ---------- WHATSAPP FAB ---------- */
.wa-fab{
  position:fixed; right:22px; bottom:22px; z-index:90;
  width:52px; height:52px; border-radius:50%; background:#25D366; display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 26px rgba(0,0,0,.3);
}
.wa-fab svg{ width:26px; height:26px; fill:#fff; }

/* ---------- REVEAL ---------- */
[data-reveal]{ opacity:0; transform:translateY(16px); transition:opacity .6s ease, transform .6s ease; }
[data-reveal].is-visible{ opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){
  [data-reveal]{ opacity:1; transform:none; transition:none; }
  html{ scroll-behavior:auto; }
}

/* ---------- RESPONSIVE ---------- */
@media (max-width:980px){
  .about-layout, .contact-layout{ grid-template-columns:1fr; }
  .svc-layout{ grid-template-columns:1fr; }
  .svc-side{ position:static; }
  .tech-block{ grid-template-columns:1fr; gap:26px; }
  .tech-block.rev .tech-media{ order:0; }
  .diff-list{ grid-template-columns:1fr; }
  .diff-item{ border-right:none; border-top:1px solid var(--line-dark); padding-top:22px; }
  .diff-item:first-child{ border-top:none; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
}

@media (max-width:720px){
  .nav-links{ display:none; }
  .nav-cta .btn{ display:none; }
  .nav-toggle{ display:flex; }
  .nav.open .nav-links{
    display:flex; flex-direction:column; align-items:stretch; gap:0;
    position:fixed; top:74px; left:0; right:0; bottom:0; background:var(--paper); overflow-y:auto;
    padding:8px 24px 24px; z-index:99;
  }
  .nav.open .nav-links > li > a{ width:100%; padding:16px 0; border-bottom:1px solid var(--line-light); font-size:16px; justify-content:space-between; }
  .nav-links .mega{ display:none !important; }
  .nav.open .nav-links > li > a.nav-cta-mobile{ display:flex; margin-top:18px; justify-content:center; border:none; }
  .section{ padding:64px 0; }
  .svc-row{ grid-template-columns:40px 1fr; }
  .svc-row .go{ display:none; }
  .chain{ min-width:0; flex-direction:column; align-items:flex-start; gap:22px; }
  .chain-node{ padding-top:0; padding-left:26px; width:100%; }
  .chain-node .line{ top:0; bottom:0; left:9px; right:auto; width:1px; height:auto; }
  .chain-node:first-child .line, .chain-node:last-child .line{ left:9px; }
  .chain-dot{ top:2px; left:9px; transform:translateX(-50%); }
  .chain-node .idx, .chain-node .lbl{ text-align:left; }
  .footer-grid{ grid-template-columns:1fr; gap:30px; }
}