/* =========================================================
   BRAVT TECNOLOGIA — design system v2
   Base clara e profissional (corporativo/engenharia), com o
   azul de marca como destaque e o navy escuro reservado para
   hero, CTA e rodapé — criando contraste em vez de uma página
   inteira escura.
   ========================================================= */

:root{
  /* fundo & superfícies (tema claro) */
  --bg-page: #F5F7FA;
  --bg-alt: #EEF2F8;
  --surface: #FFFFFF;
  --line: rgba(15,27,46,.10);
  --line-strong: rgba(15,27,46,.20);

  /* navy escuro — hero / CTA / rodapé / header */
  --navy-0: #0F1B2E;
  --navy-1: #15233A;
  --line-on-navy: rgba(255,255,255,.14);

  /* azul de marca (mantido) */
  --brand-1: #1B5FE0;
  --brand-2: #3FA0FF;
  --brand-grad: linear-gradient(120deg, var(--brand-1), var(--brand-2));
  --brand-soft: #E9F0FF;

  /* sinalização — usada com moderação (cancela, status) */
  --signal-red: #FF3B3B;
  --signal-green: #1FBE7A;
  --hazard: #E0A100;
  --hazard-dark: #FFC93C;

  /* texto */
  --text-0: #101A2E;
  --text-1: #46506B;
  --text-2: #6B7488;
  --text-0-inv: #F5F7FA;
  --text-1-inv: #B9C3D9;
  --text-2-inv: #8492AC;

  /* tipografia */
  --f-display: "Barlow Condensed", sans-serif;
  --f-body: "Inter", sans-serif;
  --f-mono: "IBM Plex Mono", monospace;

  --container: 1180px;
  --radius: 14px;
  --header-h: 76px;

  --shadow-sm: 0 1px 2px rgba(16,26,46,.06), 0 1px 1px rgba(16,26,46,.04);
  --shadow-md: 0 14px 30px -10px rgba(16,26,46,.14);
  --shadow-lg: 0 26px 50px -16px rgba(16,26,46,.20);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--bg-page);
  color: var(--text-0);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }

h1,h2,h3{
  font-family: var(--f-display);
  font-weight: 700;
  letter-spacing: .01em;
  margin: 0 0 .4em;
  text-transform: uppercase;
  color: var(--text-0);
}

p{ margin: 0 0 1em; color: var(--text-1); }

.mono{ font-family: var(--f-mono); letter-spacing: .06em; }

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

.eyebrow{
  display:inline-block;
  font-size: .78rem;
  color: var(--brand-1);
  text-transform: uppercase;
  margin-bottom: .9em;
}

.center{ text-align:center; }

.section-title{ font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
.section-lead{ max-width: 620px; margin: -0.4em auto 2.4em; }

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline: 2px solid var(--brand-1);
  outline-offset: 2px;
}

/* =========================================================
   BOTÕES
   ========================================================= */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding: 14px 26px;
  border-radius: 999px;
  font-family: var(--f-body);
  font-weight: 600;
  font-size: .95rem;
  border: 1px solid transparent;
  cursor:pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
}
.btn-primary{
  background: var(--brand-grad);
  color:#fff;
  box-shadow: 0 10px 24px -8px rgba(27,95,224,.45);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 14px 30px -8px rgba(27,95,224,.55); }
.btn-ghost{
  background: transparent;
  border-color: var(--line-strong);
  color: var(--text-0);
}
.btn-ghost:hover{ border-color: var(--brand-1); color: var(--brand-1); }
.btn-sm{ padding: 10px 18px; font-size: .85rem; }
.btn-block{ width:100%; }
.btn-whatsapp{
  margin-top: 1.4em;
  background: #1ea35c;
  color:#fff;
}
.btn-whatsapp:hover{ background:#188f4f; }

/* =========================================================
   HEADER — sempre navy, atua como faixa de marca fixa
   ========================================================= */
.site-header{
  position: fixed;
  top:0; left:0; right:0;
  height: var(--header-h);
  z-index: 50;
  background: rgba(15,27,46,.7);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-on-navy);
  transition: background .25s ease;
}
.header-inner{
  max-width: var(--container);
  margin: 0 auto;
  height:100%;
  padding: 0 28px;
  display:flex;
  align-items:center;
  gap: 28px;
}
.brand{ display:flex; align-items:center; }
.brand-badge{
  background:#fff;
  border-radius: 10px;
  padding: 6px 10px;
  display:inline-flex;
  align-items:center;
  line-height:0;
}
.brand-badge img{ height: 28px; width:auto; }

.main-nav{
  display:flex;
  gap: 28px;
  margin-left: 12px;
  font-size: .92rem;
  color: var(--text-1-inv);
}
.main-nav a{ transition: color .18s ease; }
.main-nav a:hover{ color: #fff; }

.header-login{ margin-left:auto; }
.header-cta{ margin-left:12px; }

.nav-login-mobile{ display:none; }

.nav-toggle{
  display:none;
  margin-left:auto;
  background:none;
  border:none;
  width: 36px; height: 36px;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  height:2px;
  background: #fff;
  border-radius:2px;
}

/* =========================================================
   HERO + CANCELA (elemento-assinatura) — banda navy
   ========================================================= */
.hero{
  position: relative;
  min-height: 100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow: hidden;
  padding-top: var(--header-h);
  background: linear-gradient(165deg, var(--navy-0) 0%, var(--navy-1) 60%, #102036 100%);
}
.hero-bg{
  position:absolute; inset:0;
  background:
    radial-gradient(circle at 18% 14%, rgba(63,160,255,.20), transparent 45%),
    radial-gradient(circle at 84% 80%, rgba(255,59,59,.12), transparent 45%);
  z-index:0;
}
.lane-lines{
  position:absolute;
  left:0; right:0; bottom:0;
  height: 46%;
  background-image: repeating-linear-gradient(90deg, var(--hazard-dark) 0 36px, transparent 36px 78px);
  background-position: bottom 38px left 0;
  background-repeat: repeat-x;
  background-size: 78px 4px;
  opacity:.16;
  -webkit-mask-image: linear-gradient(to top, rgba(0,0,0,.9), transparent);
  mask-image: linear-gradient(to top, rgba(0,0,0,.9), transparent);
  z-index:0;
}

.hero-content{
  position:relative;
  z-index:2;
  text-align:center;
  max-width: 760px;
  padding: 0 24px;
}
.hero .eyebrow{ color: var(--brand-2); }
.hero-title{
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 1.03;
  margin-bottom: .5em;
  color: #fff;
}
.hero-sub{
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 1.8em;
  color: var(--text-1-inv);
}
.hero-actions{ display:flex; gap: 16px; justify-content:center; flex-wrap:wrap; }
.hero .btn-ghost{ border-color: var(--line-on-navy); color:#fff; }
.hero .btn-ghost:hover{ border-color: var(--brand-2); color: var(--brand-2); }

/* cancela */
.gate-rig{
  position:absolute;
  left: 50%;
  top: 26%;
  width: min(640px, 78vw);
  height: 14px;
  transform: translateX(-50%);
  z-index:3;
  --gate-angle: 0deg;
}
.gate-post{
  position:absolute;
  left: -10px; top: 50px;
  width: 20px;
  height: 130px;
  background: linear-gradient(180deg, #2b3344, #141b28);
  border-radius: 6px 6px 3px 3px;
  box-shadow: 0 6px 18px rgba(0,0,0,.45);
}
.gate-light{
  position:absolute;
  left:50%; top:8px;
  width:8px; height:8px;
  transform: translateX(-50%);
  border-radius:50%;
  background: var(--signal-red);
  box-shadow: 0 0 10px 2px var(--signal-red);
  transition: background .3s ease, box-shadow .3s ease;
  animation: pulse-light 1.8s ease-in-out infinite;
}
.gate-light.is-open{
  background: var(--signal-green);
  box-shadow: 0 0 10px 2px var(--signal-green);
}
.gate-counterweight{
  position:absolute;
  left: -16px; top:180px;
  width: 32px; height: 22px;
  background: linear-gradient(180deg,#2b3344,#141b28);
  border-radius: 4px;
}
.gate-arm{
  position:absolute;
  left:6px; top:55px;
  width: 100%;
  height: 14px;
  background: repeating-linear-gradient(45deg, #f4f6fa 0 16px, #c81f1f 16px 32px);
  border-radius: 7px;
  transform-origin: 0% 50%;
  transform: rotate(var(--gate-angle));
  box-shadow: 0 10px 26px -6px rgba(0,0,0,.5);
  will-change: transform;
}
.gate-led{
  position:absolute;
  inset: 3px 6px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--signal-red), #ff8a8a, var(--signal-red));
  filter: blur(.3px);
  opacity: .85;
  animation: led-pulse 1.6s ease-in-out infinite;
}

@keyframes pulse-light{ 0%,100%{ opacity:1; } 50%{ opacity:.45; } }
@keyframes led-pulse{ 0%,100%{ opacity:.65; } 50%{ opacity:1; } }

.scroll-cue{
  position:absolute;
  left:50%;
  bottom: 36px;
  transform: translateX(-50%);
  z-index:2;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  color: var(--text-2-inv);
  font-size: .72rem;
  text-transform: uppercase;
  transition: opacity .3s ease;
  animation: bob 2.4s ease-in-out infinite;
}
@keyframes bob{ 0%,100%{ transform: translate(-50%,0); } 50%{ transform: translate(-50%,6px); } }

/* =========================================================
   FAIXA DE CHIPS — clara
   ========================================================= */
.chips-bar{
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  overflow:hidden;
  padding: 18px 0;
}
.chips-track{
  display:flex;
  gap: 14px;
  justify-content:center;
  flex-wrap: wrap;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}
.chip{
  font-family: var(--f-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--text-1);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 8px 16px;
  white-space:nowrap;
}

/* =========================================================
   SOBRE — clara
   ========================================================= */
.about{ padding: 110px 0; background: var(--bg-page); }
.about-grid{
  display:grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 64px;
  align-items:start;
}
.about-quote{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 32px;
  position: relative;
  box-shadow: var(--shadow-md);
}
.quote-mark{
  font-family: var(--f-display);
  font-size: 4rem;
  color: var(--brand-1);
  line-height: 1;
  display:block;
}
.about-quote p{
  font-family: var(--f-display);
  text-transform: uppercase;
  font-size: 1.5rem;
  color: var(--text-0);
  line-height:1.25;
  margin:0;
}
.about-text h2{ font-size: clamp(1.6rem,3vw,2.2rem); }
.about-meta{
  display:flex;
  gap: 32px;
  margin-top: 1.6em;
  flex-wrap:wrap;
}
.about-meta div{ display:flex; flex-direction:column; gap:4px; }
.about-meta strong{ font-family: var(--f-display); text-transform:uppercase; color: var(--brand-1); }
.about-meta span{ color: var(--text-2); font-size:.88rem; }

/* =========================================================
   SERVIÇOS — banda clara com tom levemente distinto
   ========================================================= */
.services{ padding: 100px 0 110px; background: var(--bg-alt); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.services-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
  margin-top: 50px;
}
.service-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: var(--shadow-sm);
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.service-card:hover{ border-color: var(--brand-2); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.service-icon{
  width: 48px; height: 48px;
  margin-bottom: 18px;
  padding: 9px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand-soft), #DCE8FF);
}
.service-icon svg{ width:100%; height:100%; fill: var(--brand-1); stroke: var(--brand-1); stroke-width:0; }
.service-card h3{ font-size: 1.2rem; margin-bottom:.5em; }
.service-card p{ font-size: .92rem; margin:0; }

/* =========================================================
   COMO FUNCIONA / PROCESSO — clara
   ========================================================= */
.process{ padding: 100px 0 110px; background: var(--surface); }
.process-line{
  display:grid;
  grid-template-columns: repeat(4,1fr);
  gap: 28px;
  margin-top: 56px;
  position: relative;
}
.process-line::before{
  content:"";
  position:absolute;
  top: 14px;
  left: 6%;
  right: 6%;
  height: 0;
  border-top: 3px dashed var(--brand-2);
  opacity: .4;
}
.process-step{ position:relative; }
.step-num{
  display:inline-block;
  font-size: 1.6rem;
  color: var(--brand-1);
  background: var(--surface);
  padding-right: 10px;
}
.process-step h3{ font-size: 1.1rem; margin: .5em 0 .4em; }
.process-step p{ font-size: .9rem; margin:0; }

/* =========================================================
   GALERIA / PROJETOS — banda clara levemente distinta
   ========================================================= */
.portfolio{ padding: 110px 0; background: var(--bg-alt); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.gallery{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.gallery-item{
  margin:0;
  position:relative;
  border-radius: 12px;
  overflow:hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  cursor: zoom-in;
  background: var(--surface);
}
.gallery-item img{
  width:100%; height: 280px; object-fit: cover;
  transition: transform .4s ease;
}
.gallery-item:hover img{ transform: scale(1.06); }
.gallery-item figcaption{
  position:absolute; left:0; right:0; bottom:0;
  padding: 14px;
  font-size: .82rem;
  color:#fff;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,.82));
}

.video-block{ margin-top: 50px; }
.video-frame{
  position:relative;
  border-radius: var(--radius);
  overflow:hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  
}
.video-frame video{ width:35%; max-height: 520px;background:#000; }
.video-placeholder-note{
  position:center;
  top:10px; left:10px;
  font-size:.68rem;
  color: var(--text-2-inv);
  background: rgba(0,0,0,.55);
  padding: 6px 10px;
  border-radius: 6px;
  pointer-events:none;
}

/* lightbox — permanece escuro (overlay de imagem em tela cheia) */
.lightbox{
  position:fixed; inset:0;
  background: rgba(6,8,12,.92);
  display:none;
  align-items:center;
  justify-content:center;
  z-index: 200;
  padding: 40px;
}
.lightbox.is-open{ display:flex; }
.lightbox img{ max-width: 90vw; max-height: 86vh; border-radius: 10px; }
.lightbox-close{
  position:absolute; top: 22px; right: 28px;
  background:none; border:none; color:#fff; font-size: 2rem; cursor:pointer;
}
.lightbox-nav{
  background:none; border:none; color:#fff;
  font-size: 2.4rem; cursor:pointer;
  position:absolute;
  top:50%; transform: translateY(-50%);
  padding: 10px 16px;
}
.lightbox-prev{ left: 8px; }
.lightbox-next{ right: 8px; }

/* =========================================================
   CTA FINAL — banda azul de marca (contraste, não navy puro)
   ========================================================= */
.cta-final{
  background: var(--brand-grad);
  padding: 70px 0;
}
.cta-final-inner{ text-align:center; }
.cta-final h2{ color:#fff; font-size: clamp(1.6rem,3vw,2.2rem); }
.cta-final p{ color: rgba(255,255,255,.85); max-width: 520px; margin: 0 auto 1.6em; }
.cta-final .btn-primary{ background: var(--navy-0); box-shadow:none; }
.cta-final .btn-primary:hover{ background:#0A1422; }

/* =========================================================
   CONTATO — clara
   ========================================================= */
.contact{ padding: 110px 0; background: var(--bg-page); }
.contact-grid{
  display:grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 64px;
}
.contact-info h2{ font-size: clamp(1.6rem,3vw,2.2rem); }
.contact-list{ list-style:none; padding:0; margin: 1.6em 0; font-size:.86rem; }
.contact-list li{ display:flex; flex-direction:column; gap:2px; padding: 12px 0; border-top: 1px solid var(--line); color: var(--text-0); }
.contact-list li span{ color: var(--text-2); text-transform: uppercase; font-size:.7rem; }

.contact-form{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-md);
}
.form-row{ margin-bottom: 18px; display:flex; flex-direction:column; gap:6px; }
.form-row-split{ display:grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row-split > div{ display:flex; flex-direction:column; gap:6px; }
.contact-form label{ font-size:.8rem; color: var(--text-1); }
.contact-form input, .contact-form select, .contact-form textarea{
  background: var(--bg-alt);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text-0);
  font-family: var(--f-body);
  font-size: .95rem;
  resize: vertical;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus{
  border-color: var(--brand-1);
  background: var(--surface);
}
.form-honeypot{ position:absolute; left:-9999px; top:-9999px; }
.form-feedback{ margin: 14px 0 0; font-size:.86rem; min-height: 1.2em; }
.form-feedback.ok{ color: #138a55; }
.form-feedback.err{ color: #C9302C; }

/* =========================================================
   FOOTER — navy
   ========================================================= */
.site-footer{ background: var(--navy-0); border-top: 1px solid var(--line-on-navy); padding: 60px 0 0; }
.footer-grid{
  display:grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand p{ max-width: 280px; margin-top: 16px; font-size: .88rem; color: var(--text-1-inv); }
.footer-links{ display:flex; flex-direction:column; gap: 12px; font-size:.9rem; }
.footer-links strong{ font-family: var(--f-display); text-transform: uppercase; color: #fff; margin-bottom: 4px; }
.footer-links a{ color: var(--text-1-inv); }
.footer-links a:hover{ color: var(--brand-2); }
.footer-bottom{
  border-top: 1px solid var(--line-on-navy);
  text-align:center;
  font-size:.76rem;
  color: var(--text-2-inv);
  padding: 18px 0;
}

/* =========================================================
   REVEAL ON SCROLL
   ========================================================= */
.reveal{
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   RESPONSIVO
   ========================================================= */
@media (max-width: 980px){
  .about-grid, .contact-grid{ grid-template-columns: 1fr; gap: 40px; }
  .services-grid{ grid-template-columns: repeat(2,1fr); }
  .process-line{ grid-template-columns: repeat(2,1fr); row-gap: 40px; }
  .process-line::before{ display:none; }
  .gallery{ grid-template-columns: repeat(2,1fr); }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px){
  .main-nav{ display:none; }
  .header-cta{ display:none; }
  .header-login{ display:none; }
  .nav-toggle{ display:flex; }

  .main-nav.is-open{
    display:flex;
    flex-direction:column;
    position:absolute;
    top: var(--header-h);
    left:0; right:0;
    background: var(--navy-0);
    border-bottom: 1px solid var(--line-on-navy);
    padding: 18px 28px;
    gap: 16px;
  }

  .nav-login-mobile{
    display:block;
    margin-top: 4px;
    padding-top: 16px;
    border-top: 1px solid var(--line-on-navy);
    font-weight: 600;
  }

  .services-grid{ grid-template-columns: 1fr; }
  .process-line{ grid-template-columns: 1fr; }
  .gallery{ grid-template-columns: 1fr; }
  .form-row-split{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; }
  .gate-rig{ top: 18%; }
}

/* =========================================================
   MOVIMENTO REDUZIDO
   ========================================================= */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .gate-light, .gate-led, .scroll-cue{ animation:none; }
  .reveal{ transition:none; opacity:1; transform:none; }
  .gate-arm{ transition:none; }
}