/* =========================================================
   TMJ ENGENHARIA — Design system
   Conceito: "planta técnica" (blueprint) — navy + branco,
   traços finos como linhas de desenho técnico, tipografia
   geométrica para títulos, régua/cotas como elemento gráfico.
   ========================================================= */

:root{
  --navy-950: #0a1a3b; /* azul-marinho oficial, extraído da logo TMJ */
  --navy-900: #0f234a;
  --navy-800: #15305c;
  --navy-700: #1e4276;
  --blueprint-line: #6fa8c9;
  --paper: #f7f8f6;
  --paper-dim: #eceee9;
  --ink: #0e1b2b;
  --ink-soft: #4a5b6e;
  --accent: #2f6fb0;      /* azul de destaque (CTA), dentro da paleta azul-marinho + branco */
  --accent-dark: #24578c;
  --line: rgba(255,255,255,0.18);
  --line-dark: rgba(14,27,43,0.14);

  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;

  --maxw: 1180px;
  --radius: 3px;
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
h1,h2,h3,h4{
  font-family: var(--font-head);
  margin:0 0 .5em;
  line-height: 1.15;
  letter-spacing: -0.01em;
}
p{ margin: 0 0 1em; color: var(--ink-soft); }
.container{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.visually-hidden{
  position:absolute; width:1px;height:1px; overflow:hidden;
  clip:rect(0 0 0 0); white-space:nowrap;
}

/* Focus visibility (acessibilidade) */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- Botões ---------- */
.btn{
  display:inline-flex; align-items:center; gap:.5em;
  padding: 14px 26px;
  border-radius: var(--radius);
  font-family: var(--font-head);
  font-weight: 500;
  font-size: .95rem;
  border: 1px solid transparent;
  cursor:pointer;
  transition: transform .15s ease, background .2s ease;
}
.btn:hover{ transform: translateY(-1px); }
.btn-primary{ background: var(--accent); color:#fff; }
.btn-primary:hover{ background: var(--accent-dark); }
.btn-outline{ border-color: var(--line); color:#fff; background:transparent; }
.btn-outline:hover{ background: rgba(255,255,255,.08); }
.btn-outline-dark{ border-color: var(--line-dark); color: var(--navy-900); background:transparent; }
.btn-outline-dark:hover{ background: rgba(14,27,43,.05); }

/* ---------- Header ---------- */
.site-header{
  position: sticky; top:0; z-index: 100;
  background: var(--navy-950);
  border-bottom: 1px solid var(--line);
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  height: 84px;
}
.brand{
  display:flex; flex-direction:column; color:#fff;
}
.brand-logo{ height: 52px; width: auto; }
.brand strong{
  font-family: var(--font-head);
  font-size: 1.25rem;
  letter-spacing: .01em;
}
.brand span{
  font-size: .68rem;
  color: var(--blueprint-line);
  letter-spacing: .04em;
}
.main-nav{ display:flex; align-items:center; gap: 30px; }
.main-nav a{
  color: rgba(255,255,255,.82);
  font-size: .93rem;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
}
.main-nav a:hover, .main-nav a[aria-current="page"]{
  color:#fff; border-color: var(--accent);
}
.nav-cta{ display:flex; align-items:center; gap:16px; }
.phone-link{
  color:#fff; font-size:.9rem; display:none;
}
.menu-toggle{
  display:none;
  background:none; border:1px solid var(--line);
  color:#fff; width:44px; height:44px; border-radius: var(--radius);
  font-size: 1.3rem; cursor:pointer;
}

@media (max-width: 900px){
  .main-nav{
    position:fixed; inset: 84px 0 0 0;
    background: var(--navy-950);
    flex-direction: column; align-items:flex-start;
    padding: 24px;
    gap: 6px;
    transform: translateX(100%);
    transition: transform .25s ease;
  }
  .main-nav.open{ transform: translateX(0); }
  .main-nav a{ width:100%; padding: 14px 4px; border-bottom: 1px solid var(--line); }
  .menu-toggle{ display:block; }
  .nav-cta .btn-outline{ display:none; }
}

/* ---------- Hero ---------- */
.hero{
  background: var(--navy-950);
  color:#fff;
  position: relative;
  overflow:hidden;
  padding: 88px 0 96px;
}
.hero::before{
  /* linhas de "planta" no fundo */
  content:"";
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: .12;
  pointer-events:none;
}
.hero .container{ position:relative; }
.hero-kicker{
  display:inline-flex; align-items:center; gap:10px;
  font-size: .82rem; color: var(--blueprint-line);
  margin-bottom: 22px;
  font-family: var(--font-head);
}
.hero-kicker::before{ content:""; width:28px; height:1px; background: var(--blueprint-line); }
.hero h1{
  font-size: clamp(2.1rem, 4.6vw, 3.5rem);
  max-width: 15ch;
  color:#fff;
}
.hero .lede{
  color: rgba(255,255,255,.72);
  max-width: 54ch;
  font-size: 1.08rem;
  margin-bottom: 34px;
}
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-bottom: 56px; }
.hero-pillars{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  padding-top: 28px;
  gap: 24px;
}
.hero-pillars div h4{ color:#fff; font-size:1rem; margin-bottom:4px; }
.hero-pillars div p{ color: rgba(255,255,255,.6); font-size:.9rem; margin:0; }
@media (max-width: 760px){
  .hero-pillars{ grid-template-columns: 1fr; gap:18px; }
}

/* ---------- Seções genéricas ---------- */
section{ padding: 88px 0; }
.section-head{ max-width: 640px; margin-bottom: 48px; }
.eyebrow{
  font-family: var(--font-head);
  font-size: .8rem;
  color: var(--accent);
  display:flex; align-items:center; gap:10px;
  margin-bottom: 14px;
}
.eyebrow::before{ content:""; width:22px; height:1px; background: var(--accent); }
.section-head h2{ font-size: clamp(1.7rem, 3vw, 2.3rem); color: var(--navy-950); }

.bg-dim{ background: var(--paper-dim); }
.bg-navy{ background: var(--navy-950); color:#fff; }
.bg-navy .section-head h2{ color:#fff; }
.bg-navy p{ color: rgba(255,255,255,.68); }

/* ---------- Grid de serviços ---------- */
.service-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
}
.service-card{
  background: var(--paper);
  padding: 32px 26px;
  display:flex; flex-direction:column;
}
.service-card .num{
  font-family: var(--font-head);
  color: var(--accent);
  font-size: .82rem;
  margin-bottom: 18px;
}
.service-card h3{ font-size: 1.08rem; color: var(--navy-950); margin-bottom: 10px; }
.service-card p{ font-size: .92rem; flex:1; }
.service-card a{
  font-size: .85rem; font-family: var(--font-head); color: var(--navy-800);
  border-bottom: 1px solid var(--accent); align-self:flex-start; padding-bottom:2px;
}
@media (max-width: 980px){ .service-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px){ .service-grid{ grid-template-columns: 1fr; } }

/* ---------- Diferenciais ---------- */
.pillars-list{
  display:grid; grid-template-columns: repeat(2, 1fr); gap: 36px 48px;
}
.pillars-list .pillar{ display:flex; gap:18px; }
.pillars-list .mark{
  font-family: var(--font-head); color: var(--accent);
  font-size: .82rem; padding-top:3px; min-width: 30px;
}
.pillars-list h4{ font-size: 1.05rem; margin-bottom:6px; color: var(--navy-950); }
.pillars-list p{ font-size: .93rem; margin:0; }
@media (max-width: 720px){ .pillars-list{ grid-template-columns: 1fr; } }

/* ---------- Portfólio / Cases ---------- */
.case-grid{
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.case-card{
  border: 1px solid var(--line-dark);
  background:#fff;
  display:flex; flex-direction:column;
}
.case-media{
  aspect-ratio: 4/3;
  background: var(--navy-900);
  position:relative;
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
}
.case-media img{ width:100%; height:100%; object-fit:cover; }
.case-media.split{ display:flex; gap:2px; }
.case-media.split img{ flex:1; min-width:0; }
.case-media .placeholder-tag{
  color: rgba(255,255,255,.5); font-size:.78rem; font-family: var(--font-head);
  text-align:center; padding: 0 20px;
}
.case-body{ padding: 22px 24px 26px; }
.case-body .tag{
  font-size: .74rem; font-family: var(--font-head); color: var(--accent);
  margin-bottom: 10px; display:block;
}
.case-body h3{ font-size: 1.05rem; margin-bottom: 12px; color: var(--navy-950); }
.case-row{ margin-bottom: 8px; font-size: .88rem; }
.case-row b{ color: var(--navy-900); font-family: var(--font-head); font-weight:600; font-size:.78rem; text-transform: none; }
@media (max-width: 980px){ .case-grid{ grid-template-columns: repeat(2,1fr);} }
@media (max-width: 640px){ .case-grid{ grid-template-columns: 1fr;} }

/* ---------- Depoimentos ---------- */
.testi-grid{ display:grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
.testi-card{
  border: 1px solid var(--line-dark); background:#fff;
  padding: 28px; position:relative;
}
.testi-card p{ color: var(--ink); font-size:.98rem; }
.testi-who{ display:flex; align-items:center; gap:12px; margin-top:16px; }
.testi-avatar{
  width:42px; height:42px; border-radius:50%;
  background: var(--navy-800); color:#fff;
  display:flex; align-items:center; justify-content:center;
  font-family: var(--font-head); font-size:.85rem;
}
.testi-who strong{ display:block; font-size:.88rem; }
.testi-who span{ font-size:.78rem; color: var(--ink-soft); }
.testi-empty{
  border: 1px dashed var(--line-dark); padding: 40px 28px;
  text-align:left; color: var(--ink-soft); font-size:.9rem;
}
@media (max-width: 720px){ .testi-grid{ grid-template-columns:1fr; } }

/* ---------- FAQ ---------- */
.faq-list{ max-width: 780px; }
.faq-item{ border-bottom: 1px solid var(--line-dark); }
.faq-item summary{
  cursor:pointer; list-style:none; padding: 20px 0;
  display:flex; align-items:center; justify-content:space-between; gap: 20px;
  font-family: var(--font-head); font-size: 1rem; color: var(--navy-950);
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{
  content:"+"; font-size:1.4rem; color: var(--accent); flex-shrink:0;
  transition: transform .2s ease;
}
.faq-item[open] summary::after{ transform: rotate(45deg); }
.faq-item .faq-a{ padding: 0 0 22px; max-width: 68ch; }

/* ---------- CTA banda ---------- */
.cta-band{
  background: var(--accent);
  color:#fff; text-align:left;
  padding: 56px 0;
}
.cta-band .container{
  display:flex; align-items:center; justify-content:space-between; gap: 24px; flex-wrap:wrap;
}
.cta-band h3{ color:#fff; font-size: 1.5rem; margin:0; max-width: 30ch; }
.cta-band .btn-outline{ border-color: rgba(255,255,255,.6); }

/* ---------- Formulário ---------- */
.form-grid{
  display:grid; grid-template-columns: 1fr 1fr; gap: 60px;
}
form.contact-form{ display:flex; flex-direction:column; gap: 16px; }
.form-row{ display:flex; flex-direction:column; gap:6px; }
.form-row label{ font-size:.82rem; font-family: var(--font-head); color: var(--navy-900); }
.form-row input, .form-row select, .form-row textarea{
  padding: 12px 14px; border: 1px solid var(--line-dark);
  border-radius: var(--radius); font-family: var(--font-body); font-size: .95rem;
  background:#fff;
}
.form-row textarea{ resize: vertical; min-height: 120px; }
.form-note{ font-size:.78rem; color: var(--ink-soft); }
.contact-info-block{ border-left: 1px solid var(--line-dark); padding-left: 40px; }
.contact-info-block h3{ font-size:1.1rem; color: var(--navy-950); }
.contact-info-item{ margin-bottom: 22px; }
.contact-info-item b{ display:block; font-family: var(--font-head); font-size:.85rem; color: var(--navy-900); margin-bottom:4px; }
@media (max-width: 860px){
  .form-grid{ grid-template-columns: 1fr; }
  .contact-info-block{ border-left:none; padding-left:0; border-top:1px solid var(--line-dark); padding-top: 32px; }
}

/* ---------- Footer ---------- */
.site-footer{ background: var(--navy-950); color: rgba(255,255,255,.7); padding: 64px 0 28px; }
.footer-grid{ display:grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-grid h4{ color:#fff; font-size:.85rem; margin-bottom:16px; }
.footer-grid ul{ list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:10px; }
.footer-grid a{ font-size:.88rem; color: rgba(255,255,255,.65); }
.footer-grid a:hover{ color:#fff; }
.footer-brand p{ font-size:.88rem; max-width: 34ch; }
.footer-bottom{
  border-top: 1px solid var(--line); padding-top: 24px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-size:.78rem; color: rgba(255,255,255,.45);
}
@media (max-width: 860px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px){ .footer-grid{ grid-template-columns: 1fr; } }

/* ---------- WhatsApp flutuante ---------- */
.wa-float{
  position: fixed; right: 22px; bottom: 22px; z-index: 200;
  width: 58px; height: 58px; border-radius: 50%;
  background: #25D366; color:#fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 6px 18px rgba(0,0,0,.25);
  font-size: 1.6rem;
}
.wa-float:hover{ transform: scale(1.06); }

/* ---------- Página interna: cabeçalho de página ---------- */
.page-hero{
  background: var(--navy-950); color:#fff; padding: 64px 0 56px;
}
.page-hero h1{ color:#fff; font-size: clamp(1.8rem, 4vw, 2.6rem); max-width: 20ch; }
.breadcrumb{ font-size:.82rem; color: rgba(255,255,255,.5); margin-bottom: 16px; }
.breadcrumb a{ color: rgba(255,255,255,.75); }

/* ---------- Utilidades ---------- */
.mt-0{ margin-top:0; }
.reduced-motion, [data-reduced-motion]{ scroll-behavior:auto; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .btn, .wa-float{ transition:none; }
}