/* ============================================================
   ATMC — Automação e Comunicação
   Design system: painel industrial / silkscreen PCB
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@500;600&display=swap');

:root{
  /* --- cor --- */
  --graphite-900:#0E1319;
  --graphite-800:#151C24;
  --graphite-700:#1D2630;
  --line-dark:#2B3542;
  --line-dark-soft:#212A34;

  --paper:#F4F5F0;
  --paper-dim:#E8E9E2;
  --ink:#161A1F;
  --ink-soft:#4A5058;

  --amber:#F2A33D;
  --amber-dim:#B97A26;
  --teal:#2BB8AE;
  --teal-dim:#1E857E;
  --red-live:#E2543A;

  --text-on-dark:#EDEFF2;
  --text-on-dark-soft:#9AA4B0;

  /* --- tipografia --- */
  --f-display: 'Space Grotesk', sans-serif;
  --f-body: 'Inter', sans-serif;
  --f-mono: 'JetBrains Mono', monospace;

  /* --- layout --- */
  --maxw: 1180px;
  --radius: 3px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--f-body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{font-family:var(--f-display);margin:0;line-height:1.1;letter-spacing:-0.01em;}
p{margin:0;line-height:1.6;color:var(--ink-soft);}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}
section{padding:96px 0;}
@media(max-width:720px){section{padding:64px 0;} .wrap{padding:0 20px;}}

/* focus visibility */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--amber); outline-offset:3px;
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important; transition-duration:0.001ms !important;}
}

/* ---------- silkscreen tag (elemento assinatura) ----------
   Rótulos de modelo/código no estilo de serigrafia de placa de circuito */
.silk{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--f-mono);
  font-size:14px;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;
  padding:4px 9px;
  border:1px solid currentColor;
  border-radius:2px;
  line-height:1.4;
}
.silk::before{content:"◆";font-size:9px;}
.silk--amber{color:var(--amber);}
.silk--teal{color:var(--teal);}
.silk--ghost{color:var(--text-on-dark-soft);}
.silk--dark{color:var(--ink-soft);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(14,19,25,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line-dark);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:76px;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark-img{
  height:46px;width:auto;
  display:block;
  background:#fff;
  padding:6px 11px;
  border-radius:3px;
  image-rendering:-webkit-optimize-contrast;
}
.brand-mark{
  width:40px;height:40px;
  border:1px solid var(--amber);
  border-radius:2px;
  display:flex;align-items:center;justify-content:center;
  color:var(--amber);
  font-family:var(--f-mono);font-weight:600;font-size:15px;
  /* ------------------------------------------------------------------
     ESPAÇO RESERVADO PARA A LOGO
     Troque este bloco por: <img src="/img/logo.svg" alt="ATMC" height="40">
     Mantenha a área quadrada ~40x40 (ou ajuste .brand-mark) para não
     quebrar o alinhamento do cabeçalho.
     ------------------------------------------------------------------ */
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{
  font-family:var(--f-display);color:var(--text-on-dark);font-size:20px;font-weight:700;letter-spacing:.01em;
}
.brand-text span{
  font-family:var(--f-mono);color:var(--text-on-dark-soft);font-size:12px;letter-spacing:.08em;text-transform:uppercase;
}
.nav{display:flex;align-items:center;gap:6px;}
.nav a{
  font-family:var(--f-body);font-weight:500;font-size:16px;
  color:var(--text-on-dark-soft);
  padding:9px 14px;border-radius:2px;
  transition:color .15s ease, background .15s ease;
}
.nav a:hover{color:var(--text-on-dark);background:var(--graphite-700);}
.nav a.current{color:var(--amber);}
.nav-cta{
  margin-left:8px;
  background:var(--amber);color:var(--graphite-900) !important;
  font-weight:700 !important;
  padding:10px 18px !important;border-radius:2px;
}
.nav-cta:hover{background:#ffb75c;}
.nav-toggle{display:none;}

@media(max-width:900px){
  .nav{
    position:fixed;inset:76px 0 0 0;background:var(--graphite-900);
    flex-direction:column;align-items:stretch;padding:18px;gap:2px;
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .18s ease, transform .18s ease;
    border-top:1px solid var(--line-dark);
  }
  .nav.open{opacity:1;pointer-events:auto;transform:translateY(0);}
  .nav a{padding:14px 10px;font-size:18px;}
  .nav-toggle{
    display:flex;flex-direction:column;gap:5px;width:32px;background:none;border:0;cursor:pointer;padding:6px;
  }
  .nav-toggle span{height:2px;background:var(--text-on-dark);display:block;}
}

/* ---------- hero (schematic trace background) ---------- */
.hero{
  position:relative;
  background:var(--graphite-900);
  color:var(--text-on-dark);
  overflow:hidden;
  padding:120px 0 100px;
}
.hero-traces{position:absolute;inset:0;opacity:.55;pointer-events:none;}
.hero .wrap{position:relative;z-index:2;}
.hero-eyebrow{margin-bottom:22px;}
.hero h1{
  font-size:clamp(39px,5vw,67px);
  max-width:16ch;
  color:var(--text-on-dark);
}
.hero h1 em{color:var(--amber);font-style:normal;}
.hero-sub{
  margin-top:22px;max-width:52ch;font-size:20px;color:var(--text-on-dark-soft);
}
.hero-actions{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap;}
.hero-qr{
  display:flex;align-items:center;gap:16px;
  margin-top:32px;padding:14px 18px 14px 14px;
  background:var(--graphite-800);border:1px solid var(--line-dark);
  border-radius:4px;max-width:420px;
}
.hero-qr img{background:#fff;padding:6px;border-radius:3px;flex-shrink:0;}
.hero-qr p{margin-top:6px;font-size:13px;color:var(--text-on-dark-soft);max-width:26ch;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,auto);gap:40px;
  margin-top:64px;padding-top:32px;border-top:1px solid var(--line-dark);
  max-width:640px;
}
.hero-stats div strong{display:block;font-family:var(--f-display);font-size:32px;color:var(--text-on-dark);}
.hero-stats div span{font-family:var(--f-mono);font-size:13px;letter-spacing:.05em;text-transform:uppercase;color:var(--text-on-dark-soft);}
@media(max-width:640px){.hero-stats{grid-template-columns:1fr 1fr;gap:24px;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--f-body);font-weight:700;font-size:16px;
  padding:13px 22px;border-radius:2px;border:1px solid transparent;
  cursor:pointer;transition:transform .12s ease, background .15s ease, border-color .15s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--amber);color:var(--graphite-900);}
.btn-primary:hover{background:#ffb75c;}
.btn-outline{border-color:var(--line-dark);color:var(--text-on-dark);}
.btn-outline:hover{border-color:var(--text-on-dark-soft);}
.btn-outline.on-light{border-color:#c9cbc2;color:var(--ink);}
.btn-outline.on-light:hover{border-color:var(--ink-soft);}

/* ---------- section headers ---------- */
.sec-head{max-width:640px;margin-bottom:56px;}
.sec-head .silk{margin-bottom:16px;}
.sec-head h2{font-size:clamp(30px,3.4vw,41px);}
.sec-head p{margin-top:14px;font-size:18px;}
.sec-head.on-dark h2{color:var(--text-on-dark);}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- category / product grid ---------- */
.grid{display:grid;gap:2px;background:var(--paper-dim);border:1px solid var(--paper-dim);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
@media(max-width:900px){.grid-3{grid-template-columns:1fr 1fr;} .grid-4{grid-template-columns:1fr 1fr;}}
@media(max-width:640px){.grid-3,.grid-2,.grid-4{grid-template-columns:1fr;}}

.card{
  background:var(--paper);padding:32px 28px;position:relative;
  transition:background .15s ease;
}
.card:hover{background:#fff;}
.card .silk{margin-bottom:18px;}
.card h3{font-size:22px;margin-bottom:10px;}
.card p{font-size:17px;}
.card-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-family:var(--f-mono);font-size:14px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;
  color:var(--teal-dim);
}
.card-link::after{content:"→";transition:transform .15s ease;}
.card:hover .card-link::after{transform:translateX(3px);}

/* dark variant cards (used on graphite sections) */
.card--dark{background:var(--graphite-800);color:var(--text-on-dark);}
.card--dark h3{color:var(--text-on-dark);}
.card--dark p{color:var(--text-on-dark-soft);}
.grid--dark{background:var(--line-dark);border-color:var(--line-dark);}

/* ---------- band (dark full-bleed section) ---------- */
.band{background:var(--graphite-900);color:var(--text-on-dark);}
.band-line{border-top:1px solid var(--line-dark);}

/* ---------- process / numbered list — only used where order is real ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:var(--line-dark);}
.step{background:var(--graphite-900);padding:30px 24px;}
.step .num{font-family:var(--f-mono);color:var(--amber);font-size:15px;}
.step h4{margin-top:14px;font-size:18px;color:var(--text-on-dark);}
.step p{margin-top:8px;font-size:16px;}
@media(max-width:900px){.steps{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.steps{grid-template-columns:1fr;}}

/* ---------- logos / segments strip ---------- */
.segments{display:flex;flex-wrap:wrap;gap:10px;}
.segments .silk{color:var(--ink-soft);border-color:#c9cbc2;}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--amber);color:var(--graphite-900);
  padding:64px 0;
}
.cta-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.cta-band h2{font-size:clamp(25px,3vw,34px);max-width:22ch;}
.cta-band .btn-primary{background:var(--graphite-900);color:var(--text-on-dark);}
.cta-band .btn-primary:hover{background:#000;}

/* ---------- footer ---------- */
.site-footer{background:var(--graphite-900);color:var(--text-on-dark-soft);padding:64px 0 28px;}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;}
.foot-grid h5{
  font-family:var(--f-mono);font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-on-dark);margin-bottom:16px;
}
.foot-grid ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.foot-grid a{font-size:16px;transition:color .15s ease;}
.foot-grid a:hover{color:var(--text-on-dark);}
.foot-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-family:var(--f-mono);font-size:13px;letter-spacing:.03em;
}
@media(max-width:800px){.foot-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr;}}

/* ---------- breadcrumb / page header (páginas internas) ---------- */
.page-head{background:var(--graphite-900);color:var(--text-on-dark);padding:64px 0 56px;}
.breadcrumb{
  font-family:var(--f-mono);font-size:13px;letter-spacing:.05em;text-transform:uppercase;
  color:var(--text-on-dark-soft);margin-bottom:18px;
}
.breadcrumb a:hover{color:var(--text-on-dark);}
.page-head h1{font-size:clamp(32px,4vw,48px);color:var(--text-on-dark);max-width:20ch;}
.page-head p{margin-top:16px;max-width:56ch;color:var(--text-on-dark-soft);font-size:18px;}

/* ---------- forms ---------- */
.form{display:grid;gap:16px;max-width:560px;}
.form label{
  font-family:var(--f-mono);font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);
  display:block;margin-bottom:7px;
}
.form input,.form select,.form textarea{
  width:100%;padding:12px 14px;border:1px solid #c9cbc2;border-radius:2px;
  font-family:var(--f-body);font-size:17px;background:#fff;color:var(--ink);
}
.form textarea{resize:vertical;min-height:120px;}
.form .row2{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
@media(max-width:560px){.form .row2{grid-template-columns:1fr;}}

/* ---------- contact info list ---------- */
.info-list{display:flex;flex-direction:column;gap:22px;}
.info-list dt{font-family:var(--f-mono);font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);}
.info-list dd{margin:6px 0 0;font-size:18px;font-family:var(--f-display);font-weight:600;}

/* ---------- utility ---------- */
.mt-64{margin-top:64px;}
.two-col{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start;}
@media(max-width:900px){.two-col{grid-template-columns:1fr;gap:40px;}}