/* =========================================================
   Gram Tech — sistema visual
   Paleta derivada da logo: azul #163550 monocromático.
   ========================================================= */

:root{
  /* azuis da marca */
  --brand:#163550;
  --brand-deep:#0C2033;
  --brand-mid:#23557F;
  --brand-soft:#E7EDF3;
  --accent:#176A90;

  /* neutros */
  --ink:#152029;
  --body:#41535F;
  --muted:#64757F;
  --line:#D9E1E7;
  --line-soft:#EAF0F4;
  --bg:#FFFFFF;
  --bg-alt:#F5F8FA;

  /* sinal */
  --alert:#B4531C;

  /* curvas de movimento */
  --ease-out:cubic-bezier(0.23, 1, 0.32, 1);

  --wrap:1200px;
  --radius:0;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;
  font-family:Montserrat,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.65;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block}
a{color:var(--brand-mid)}

h1,h2,h3,h4{
  color:var(--ink);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-.02em;
  margin:0;
}
h1{font-size:clamp(34px,4.6vw,58px);font-weight:900}
h2{font-size:clamp(28px,3.4vw,42px)}
h3{font-size:21px;letter-spacing:-.01em}
p{margin:0}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}

.eyebrow{
  font-size:12px;font-weight:800;letter-spacing:.22em;text-transform:uppercase;
  color:var(--accent);margin-bottom:18px;
}
.eyebrow--light{color:#9FC4DA}

.lede{font-size:19px;line-height:1.6;color:var(--body);max-width:62ch}
.lede--light{color:#C3D4E0}

section{padding:88px 0;scroll-margin-top:96px}
.section-alt{background:var(--bg-alt);border-block:1px solid var(--line-soft)}
.section-head{max-width:70ch;margin-bottom:52px}
.section-head p{margin-top:16px}

/* ---------------------------------------------------------
   Botões
   --------------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:inherit;font-size:15px;font-weight:800;letter-spacing:.04em;
  padding:16px 30px;border-radius:var(--radius);border:2px solid transparent;line-height:1.35;
  text-decoration:none;cursor:pointer;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.btn--primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn--ghost{background:transparent;color:var(--brand);border-color:var(--line)}
.btn--on-dark{background:#fff;color:var(--brand-deep);border-color:#fff}
.btn--outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------------------------------------------------------
   Topo
   --------------------------------------------------------- */
.topbar{background:var(--brand-deep);color:#C3D4E0;font-size:13.5px;font-weight:600;padding:12px 0}
.topbar .wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;flex-wrap:wrap;
}
.topbar a{color:#DCE7EF;text-decoration:none}
.topbar-contacts{display:flex;gap:22px;flex-wrap:wrap}
.badge-24{
  display:inline-flex;align-items:center;gap:9px;
  font-weight:700;letter-spacing:.01em;color:#fff;
}
.badge-24 .dot{width:8px;height:8px;border-radius:50%;background:#43B078;flex:none}

.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(180%) blur(8px);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;min-height:82px;
}
.brand{display:flex;align-items:center;text-decoration:none;flex:none}
.brand img{height:40px;width:auto}
.nav{display:flex;gap:30px;margin-left:auto}
.nav a{
  color:var(--ink);text-decoration:none;font-size:15px;font-weight:700;
  padding:6px 0;border-bottom:2px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.header-cta{flex:none}
@media (max-width:1000px){.nav{display:none}}
/* o pedido de orcamento e o objetivo da pagina: encolhe, nunca some */
@media (max-width:620px){
  .site-header .wrap{min-height:70px;gap:14px}
  .brand img{height:32px}
  .header-cta{padding:12px 16px;font-size:13.5px;letter-spacing:.02em}
}

/* ---------------------------------------------------------
   Hero
   --------------------------------------------------------- */
.hero{
  background:
    linear-gradient(180deg,rgba(12,32,51,0) 0%,rgba(12,32,51,.55) 100%),
    var(--brand);
  color:#fff;padding:92px 0 0;position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(180deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
}
.hero .wrap{position:relative;z-index:1}
.hero h1{color:#fff;max-width:22ch}
.hero .lede{margin-top:24px}
.hero .btn-row{margin-top:36px}

/* faixa de capacidade colada na base do hero */
.capacity{
  margin-top:68px;display:grid;
  grid-template-columns:repeat(auto-fit,minmax(min(215px, 100%), 1fr));
  gap:1px;background:rgba(255,255,255,.16);
  border-top:1px solid rgba(255,255,255,.16);
}
.cap-item{background:var(--brand);padding:26px 22px}
.cap-item .k{
  font-size:12px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;
  color:#9FC4DA;margin-bottom:10px;
}
.cap-item .v{font-size:30px;font-weight:900;color:#fff;letter-spacing:-.02em;line-height:1.3}
.cap-item .v span{font-size:15px;font-weight:700;color:#A9C9DD;letter-spacing:0}
.cap-item .n{font-size:14px;color:#AFC8D8;margin-top:8px;line-height:1.5}

/* ---------------------------------------------------------
   Clientes
   --------------------------------------------------------- */
.clients{padding:56px 0;border-bottom:1px solid var(--line-soft)}
.clients-title{
  text-align:center;font-size:13px;font-weight:800;letter-spacing:.18em;
  text-transform:uppercase;color:var(--muted);margin-bottom:34px;
}
.client-grid{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:1px;background:var(--line);border:1px solid var(--line);
}
@media(min-width:680px){.client-grid{grid-template-columns:repeat(4,1fr)}}
.client-cell{
  background:#fff;min-height:130px;
  display:flex;align-items:center;justify-content:center;padding:22px 18px;
}
.client-cell img{max-height:62px;max-width:145px;width:auto;object-fit:contain}

/* ---------------------------------------------------------
   Cards genéricos
   --------------------------------------------------------- */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:1fr}
@media(min-width:820px){.grid-2{grid-template-columns:1fr 1fr}}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(min(280px, 100%), 1fr))}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;
}
.card h3{margin-bottom:12px}
.card p{font-size:16px}
.card--feature{background:var(--brand-soft);border-color:#C9D8E5}
.card .tag{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brand-mid);
  background:var(--brand-soft);padding:6px 11px;border-radius:2px;margin-bottom:16px;
}
.card ul{margin:16px 0 0;padding-left:0;list-style:none}
.card li{
  position:relative;padding-left:24px;margin-bottom:9px;font-size:15.5px;line-height:1.5;
}
.card li::before{
  content:"";position:absolute;left:0;top:9px;
  width:9px;height:2px;background:var(--accent);
}

/* escopo: tabela real */
.scope{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line)}
.scope caption{
  text-align:left;font-size:13px;font-weight:800;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);padding-bottom:14px;
}
.scope th,.scope td{
  text-align:left;padding:17px 20px;border-bottom:1px solid var(--line-soft);
  font-size:16px;
}
.scope thead th{
  background:var(--brand);color:#fff;font-size:12.5px;font-weight:800;
  letter-spacing:.14em;text-transform:uppercase;border-bottom:0;
}
.scope tbody tr:last-child td{border-bottom:0}
.scope td.num{font-weight:800;color:var(--ink);white-space:nowrap}
.scope td.num span{font-weight:700;color:var(--muted);font-size:14px}
.scope tbody tr{transition:background-color .14s ease}

/* benefícios numerados */
.benefits{display:grid;gap:1px;background:var(--line);
  grid-template-columns:repeat(auto-fit,minmax(min(300px, 100%), 1fr));
  border:1px solid var(--line)}
.benefit{background:#fff;padding:28px 26px;display:flex;gap:18px;align-items:flex-start}
.benefit .num{
  font-size:15px;font-weight:900;color:#fff;background:var(--brand);
  width:34px;height:34px;flex:none;border-radius:2px;
  display:flex;align-items:center;justify-content:center;
}
.benefit h3{font-size:17px;margin-bottom:6px}
.benefit p{font-size:15.5px;line-height:1.55}

/* orçamento / transparência */
.pricing{display:grid;gap:22px;grid-template-columns:repeat(auto-fit,minmax(min(320px, 100%), 1fr))}
.price-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:32px 30px;background:#fff;
}
.price-card--lead{background:var(--brand);border-color:var(--brand);color:#fff}
.price-card--lead h3,.price-card--lead .amount{color:#fff}
.price-card--lead p{color:#C3D4E0}
.price-card--lead .tag{background:rgba(255,255,255,.14);color:#fff}
.price-card--lead li{color:#DCE7EF}
.price-card--lead li::before{background:#7FB8D6}
.amount{
  font-size:28px;font-weight:900;color:var(--ink);letter-spacing:-.02em;
  margin:18px 0 10px;
}
.amount small{display:block;font-size:14px;font-weight:600;color:var(--muted);letter-spacing:0;margin-top:6px}
.price-card--lead .amount small{color:#A9C9DD}

/* sobre */
.about{display:grid;gap:44px;grid-template-columns:repeat(auto-fit,minmax(min(320px, 100%), 1fr));align-items:start}
.about-facts{display:grid;gap:1px;background:var(--line);border:1px solid var(--line)}
.about-fact{background:#fff;padding:22px 24px}
.about-fact .k{font-size:12px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.about-fact .v{font-size:18px;font-weight:800;color:var(--ink);margin-top:6px}

/* ---------------------------------------------------------
   Formulário
   --------------------------------------------------------- */
.quote{background:var(--brand-deep);color:#fff}
.quote h2{color:#fff}
.quote-grid{display:grid;gap:52px;grid-template-columns:repeat(auto-fit,minmax(min(320px, 100%), 1fr))}
.quote-aside li{
  list-style:none;padding-left:26px;position:relative;margin-bottom:14px;
  color:#C3D4E0;font-size:16px;line-height:1.55;
}
.quote-aside ul{padding:0;margin:26px 0 0}
.quote-aside li::before{
  content:"";position:absolute;left:0;top:10px;width:12px;height:2px;background:#7FB8D6;
}
.quote-direct{
  margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.18);
}
.quote-direct a{
  color:#fff;font-weight:800;font-size:19px;text-decoration:none;
  border-bottom:2px solid rgba(255,255,255,.35);
}
.quote-direct .k{
  font-size:12px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;
  color:#9FC4DA;margin-bottom:8px;
}

.form{background:#fff;border-radius:var(--radius);padding:34px 32px}
.field{margin-bottom:20px}
.field label{
  display:block;font-size:13.5px;font-weight:800;color:var(--ink);
  margin-bottom:8px;letter-spacing:.02em;
}
.field .req{color:var(--alert)}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:16px;color:var(--ink);
  padding:14px 15px;border:1px solid var(--line);border-radius:2px;background:#fff;
  transition:border-color .16s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent);
}
.field textarea{min-height:110px;resize:vertical}
.field-row{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(min(200px, 100%), 1fr))}
.form .btn{width:100%;margin-top:6px}
.form-note{font-size:13.5px;color:var(--muted);margin-top:16px;line-height:1.5}

/* ---------------------------------------------------------
   Rodapé
   --------------------------------------------------------- */
.site-footer{background:var(--brand-deep);color:#A9C0CF;padding:58px 0 30px;font-size:15px}
.footer-grid{
  display:grid;gap:36px;grid-template-columns:repeat(auto-fit,minmax(min(230px, 100%), 1fr));
  padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.14);
}
.site-footer img{height:38px;width:auto;margin-bottom:18px}
.site-footer h3{
  color:#fff;font-size:12.5px;font-weight:800;letter-spacing:.2em;
  text-transform:uppercase;margin-bottom:16px;
}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:10px}
.site-footer a{color:#C3D4E0;text-decoration:none}
.footer-bottom{
  padding-top:24px;display:flex;justify-content:space-between;gap:18px;
  flex-wrap:wrap;font-size:13.5px;color:#8FA7B8;
}

/* utilidades */
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
@media (max-width:640px){
  section{padding:64px 0}
  .hero{padding-top:64px}
  .capacity{margin-top:48px}
  .form{padding:26px 22px}
}


/* ---------------------------------------------------------
   WhatsApp — canal mais rapido de contato
   --------------------------------------------------------- */
.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}
.ico-wa{
  width:1.2em;height:1.2em;flex:none;
  fill:#25D366;                 /* verde da marca WhatsApp: reconhecimento instantaneo */
}
.wa-link{display:inline-flex;align-items:center;gap:9px}
.topbar .wa-link{font-weight:700}
.btn .ico-wa{width:1.25em;height:1.25em}
.quote-direct .wa-link{gap:11px}
.site-footer .wa-link .ico-wa{width:1.05em;height:1.05em}


/* =========================================================
   Movimento
   Regras: so transform e opacity; ease-out em entrada;
   duracao de UI abaixo de 300ms; marketing pode ser maior.
   ========================================================= */

/* ---- entrada do hero ----
   Animacao CSS (nao JS): roda fora da main thread enquanto a
   pagina ainda esta carregando fonte e imagem. */
@keyframes gt-rise{
  from{opacity:0;transform:translateY(16px)}
  to{opacity:1;transform:none}
}
.hero h1,
.hero .lede,
.hero .btn-row,
.capacity{animation:gt-rise .6s var(--ease-out) both}
.hero h1{animation-delay:.04s}
.hero .lede{animation-delay:.12s}
.hero .btn-row{animation-delay:.2s}
.capacity{animation-delay:.28s}

/* ---- entrada por scroll ----
   O estado oculto so existe quando o JS assume (html.js-reveal),
   entao sem JS a pagina aparece inteira e legivel. */
html.js-reveal [data-reveal]{opacity:0;transform:translateY(14px)}
html.js-reveal [data-reveal].is-in{
  opacity:1;transform:none;
  transition:opacity .55s var(--ease-out),transform .55s var(--ease-out);
  transition-delay:calc(var(--i, 0) * 70ms);
}

/* ---- feedback de interacao ----
   So em elemento que de fato e clicavel. Card de servico e
   <article>, nao link: levantar no hover seria affordance falsa. */
.btn{transition:background-color .16s ease,color .16s ease,border-color .16s ease,transform .12s var(--ease-out)}
.btn:active{transform:scale(.98)}

.wa-link{transition:color .16s ease}
.wa-link .ico-wa{transition:transform .16s var(--ease-out)}
@media (hover:hover) and (pointer:fine){
  .wa-link:hover .ico-wa{transform:scale(1.12)}
}

/* ---- movimento reduzido ----
   Menos e mais suave, nao zero: a opacidade fica, o deslocamento sai. */
@media (prefers-reduced-motion:reduce){
  .hero h1,.hero .lede,.hero .btn-row,.capacity{
    animation:none;opacity:1;transform:none;
  }
  html.js-reveal [data-reveal]{transform:none}
  html.js-reveal [data-reveal].is-in{
    transition:opacity .3s ease;transition-delay:0s;
  }
  .btn:active{transform:none}
  .wa-link:hover .ico-wa{transform:none}
}


/* =========================================================
   Camada de plataforma: o que separa "site aberto no celular"
   de algo que responde como aplicativo.
   ========================================================= */

/* Toque nao tem hover. O navegador finge um: o primeiro toque acende
   o :hover e ele fica aceso ate o dedo tocar em outro lugar. Todo
   hover do site mora aqui dentro. */
@media (hover:hover) and (pointer:fine){
  .btn--primary:hover{background:var(--brand-mid);border-color:var(--brand-mid)}
  .btn--ghost:hover{border-color:var(--brand);background:var(--brand-soft)}
  .btn--on-dark:hover{background:var(--brand-soft);border-color:var(--brand-soft)}
  .btn--outline-light:hover{border-color:#fff;background:rgba(255,255,255,.08)}
  .topbar a:hover{color:#fff;text-decoration:underline}
  .nav a:hover{color:var(--brand);border-color:var(--accent)}
  .scope tbody tr:hover{background:var(--bg-alt)}
  .quote-direct a:hover{border-color:#fff}
  .site-footer a:hover{color:#fff;text-decoration:underline}
}

html{
  -webkit-tap-highlight-color:transparent; /* o retangulo cinza no toque e o maior sinal de "isto e um site" */
  -webkit-text-size-adjust:100%;           /* iOS infla a fonte em paisagem sem isto */
}

/* touch-action:manipulation mata a espera de 300ms que o navegador faz
   pra ver se vem um segundo toque (duplo toque = zoom).
   user-select:none so em controle: texto de conteudo continua copiavel. */
.btn,.nav a,.topbar a,.site-footer a,.wa-link,button{
  touch-action:manipulation;
  -webkit-user-select:none;
  user-select:none;
  -webkit-touch-callout:none;
}

/* Com o realce do navegador removido, todo alvo precisa do proprio
   retorno de toque. :active funciona em qualquer tipo de entrada. */
.btn:active{transform:scale(.97)}
.nav a:active,.topbar a:active,.site-footer a:active,.wa-link:active{opacity:.6}

/* Alvo de toque: 44px e o piso. Links da barra superior e do rodape
   sao pequenos demais sem isto. */
@media (pointer:coarse){
  .topbar a,.site-footer a,.nav a{
    display:inline-flex;align-items:center;min-height:44px;
  }
  .topbar-contacts{gap:8px 20px}
}


/* ---- correcoes medidas a 375px ---- */

/* A tabela de escopo estourava a largura: .num tinha nowrap e
   "Preventiva · Corretiva" nao cabe em 327px. No telefone a quebra
   e preferivel ao scroll lateral da pagina inteira. */
@media (max-width:620px){
  .scope th,.scope td{padding:14px 13px;font-size:15px}
  .scope td.num{white-space:normal}
  .scope thead th{font-size:12px;letter-spacing:.1em}

  /* a grade de clientes tem borda de 1px dos dois lados; sem isto
     a ultima coluna passa 1px do viewport */
  .client-grid{max-width:100%}
  .client-cell{min-height:108px;padding:16px 12px}
  .client-cell img{max-height:52px;max-width:100%}
}

/* Alvo de toque de 44px. A consulta por capacidade e a regra certa,
   mas viewport estreito e quase sempre toque: as duas valem. */
@media (max-width:620px),(pointer:coarse){
  .brand{min-height:44px}
  .topbar a,.site-footer a,.nav a,.quote-direct a{
    display:inline-flex;align-items:center;min-height:44px;
  }
  .site-footer li{margin-bottom:2px}
  .topbar-contacts{gap:0 20px}
}

/* Nada de scroll lateral, venha de onde vier. */
html,body{max-width:100%;overflow-x:clip}


/* ---- barra superior no telefone ----
   Com o piso de 44px por alvo, os tres itens empilhavam e a barra
   comia 175px (30% da primeira tela). Vira uma linha so: o canal
   mais rapido (WhatsApp) e a prova de 24 h. O e-mail continua no
   rodape e no formulario. */
@media (max-width:620px){
  .topbar{padding:7px 0;font-size:13px}
  .topbar .wrap{flex-wrap:nowrap;gap:12px}
  .topbar a{min-height:38px}
  .topbar .tb-mail{display:none}
  .badge-24 .tb-full{display:none}
  .badge-24 .tb-short{display:inline}
  .badge-24{font-size:12.5px;white-space:nowrap}
  .topbar-contacts{margin-left:auto}
}


/* ---- telefone pequeno (320-400px) ----
   overflow-x:clip esconde estouro, nao resolve. Aqui a largura
   e devolvida na origem: menos respiro lateral e controles menores. */
@media (max-width:400px){
  .wrap{padding:0 16px}

  .site-header .wrap{gap:10px;min-height:64px}
  .brand img{height:28px}
  .header-cta{padding:11px 13px;font-size:12.5px;letter-spacing:0}

  .topbar{font-size:12px}
  .badge-24{font-size:11.5px}
  .topbar a{font-size:12.5px}

  .eyebrow{letter-spacing:.16em}
  .card{padding:24px 20px}
  .benefit{padding:22px 18px;gap:14px}
  .price-card{padding:26px 20px}
  .cap-item{padding:22px 18px}
  .form{padding:22px 18px}
  .quote-direct a{font-size:17px}
  .client-cell{min-height:96px;padding:14px 10px}
}


/* ---- estados do formulario ----
   Antes so existia o estado de sucesso. Erro inline abaixo do campo,
   nunca no lugar do rotulo. */
.field-error{
  margin-top:7px;font-size:14px;font-weight:600;color:var(--alert);line-height:1.4;
}
.field input.is-erro,.field select.is-erro,.field textarea.is-erro{
  border-color:var(--alert);
}
.form-ok{
  margin-top:16px;padding:14px 16px;
  background:var(--brand-soft);border:1px solid #C3D4E2;
  font-size:15px;line-height:1.5;color:var(--ink);
}
.form-ok a{color:var(--brand);font-weight:800}


/* resposta do servidor no formulario: sucesso e falha usam a mesma caixa */
.form-ok--erro{
  background:#FBEFE8;border-color:#E6C4AE;color:#7A3A12;
}
.btn:disabled{opacity:.6;cursor:progress}