/* ===================================================
   BRAUCON ENGENHARIA — Design System
=================================================== */
:root{
  /* Paleta oficial Braucon Engenharia (manual de marca) */
  --navy: #1F4E79;        /* Azul Institucional — cor primária */
  --navy-600: #204a72;
  --navy-dark: #163A5C;
  --navy-darker: #0F2A42;
  --gold: #C6A663;        /* Dourado Elegante — detalhes premium, usar com moderação */
  --gold-dark: #AD8B4E;
  --turquoise: #3BB5C5;   /* Azul Turquesa Suave — ícones e elementos digitais */
  --turquoise-dark: #2E93A0;
  --whatsapp: #25D366;
  --whatsapp-dark: #1DA851;

  --cream: #EFEAE0;       /* derivado do Bege Claro/Areia oficial (#E8E1D4), suavizado para fundo de seção */
  --sand: #E8E1D4;        /* Bege Claro / Areia — oficial */
  --white: #FFFFFF;
  --ink: #1B2530;
  --gray: #5C6975;        /* Cinza Urbano — cor secundária oficial */
  --gray-light: #8A93A0;
  --border: #E2DFD5;

  --font-head: 'Sora', 'Manrope', sans-serif;
  --font-body: 'Manrope', 'Segoe UI', sans-serif;

  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 10px rgba(15, 42, 66, .06);
  --shadow-md: 0 10px 30px rgba(15, 42, 66, .12);
  --shadow-lg: 0 24px 60px rgba(15, 42, 66, .18);
  --container: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3{ font-family:var(--font-head); margin:0; color:var(--navy-darker); line-height:1.15; }
p{ margin:0 0 1em; color:var(--gray); line-height:1.7; }
p:last-child{ margin-bottom:0; }

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

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:999px;
  font-weight:700;
  font-size:.95rem;
  border:2px solid transparent;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  white-space:nowrap;
  cursor:pointer;
}
.btn--gold{ background:var(--gold); color:var(--navy-darker); }
.btn--gold:hover{ background:var(--gold-dark); transform:translateY(-2px); box-shadow:var(--shadow-md); }
.btn--outline-light{ border-color:rgba(255,255,255,.55); color:#fff; }
.btn--outline-light:hover{ background:rgba(255,255,255,.12); border-color:#fff; transform:translateY(-2px); }
.btn--lg{ padding:16px 32px; font-size:1rem; }

/* ---------- Eyebrow / Headings ---------- */
.eyebrow{
  display:inline-block;
  font-family:var(--font-head);
  font-weight:700;
  font-size:.8rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--gold-dark);
  margin-bottom:14px;
}
.eyebrow--light{ color:var(--gold); }
.h2{ font-size:clamp(1.9rem, 3.4vw, 2.6rem); font-weight:800; margin-bottom:18px; }
.h2--light{ color:#fff; }
.lead{ font-size:1.08rem; color:var(--gray); max-width:640px; }
.lead--light{ color:rgba(255,255,255,.78); }
.section-head{ max-width:720px; margin-bottom:50px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

.section{ padding:96px 0; }
.section--tint{ background:var(--cream); }
.section--dark{ background:linear-gradient(160deg, var(--navy-darker), var(--navy-dark) 60%, var(--navy)); }
.section--dark p{ color:rgba(255,255,255,.7); }

.section-footnote{
  margin-top:36px;
  text-align:center;
  font-weight:700;
  color:var(--navy);
  font-size:1.02rem;
}

/* ===================================================
   HEADER
=================================================== */
.header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:1000;
  padding:18px 0;
  transition:background .3s ease, padding .3s ease, box-shadow .3s ease;
}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.header__logo{ display:flex; align-items:center; }
.header__logo-img{ height:46px; width:auto; }
.header__logo-img--navy{ display:none; }

.nav{ display:flex; align-items:center; gap:30px; }
.nav a{
  font-family:var(--font-head);
  font-weight:600;
  font-size:.92rem;
  color:#fff;
  position:relative;
  padding:4px 0;
  transition:color .2s ease;
}
.nav a::after{
  content:'';
  position:absolute; left:0; right:0; bottom:-4px;
  height:2px; background:var(--gold);
  transform:scaleX(0); transform-origin:left;
  transition:transform .25s ease;
}
.nav a:hover{ color:var(--gold); }
.nav a:hover::after{ transform:scaleX(1); }

.header__cta{ flex-shrink:0; }
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:40px; height:40px;
  background:none; border:none; cursor:pointer;
  padding:0;
}
.nav-toggle span{ width:100%; height:2px; background:#fff; border-radius:2px; transition:.3s; }

.header.is-scrolled{
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(8px);
  box-shadow:var(--shadow-sm);
  padding:12px 0;
}
.header.is-scrolled .header__logo-img--navy{ display:block; }
.header.is-scrolled .header__logo-img--white{ display:none; }
.header.is-scrolled .nav a{ color:var(--navy-darker); }
.header.is-scrolled .nav a:hover{ color:var(--navy); }
.header.is-scrolled .nav-toggle span{ background:var(--navy-darker); }

/* ===================================================
   HERO
=================================================== */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding-top:140px;
  overflow:hidden;
}
.hero__bg{ position:absolute; inset:0; z-index:0; }
.hero__bg img{ width:100%; height:100%; object-fit:cover; }
.hero__overlay{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(15,42,66,.55) 0%, rgba(15,42,66,.72) 55%, rgba(15,42,66,.94) 100%);
}
.hero__content{ position:relative; z-index:1; }
.hero__title{
  font-size:clamp(2.4rem, 5.6vw, 4rem);
  color:#fff;
  font-weight:800;
  max-width:820px;
  margin-bottom:22px;
}
.hero__title span{ color:var(--gold); }
.hero__subtitle{
  color:rgba(255,255,255,.82);
  font-size:1.15rem;
  max-width:600px;
  margin-bottom:34px;
}
.hero__actions{ display:flex; gap:16px; flex-wrap:wrap; margin-bottom:70px; }

.hero__stats{ position:relative; z-index:1; padding-bottom:40px; }
.hero__stats-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:20px;
  border-top:1px solid rgba(255,255,255,.18);
  padding-top:32px;
}
.stat{ display:flex; flex-direction:column; gap:4px; }
.stat__num{ font-family:var(--font-head); font-size:1.7rem; font-weight:800; color:#fff; }
.stat__label{ color:rgba(255,255,255,.65); font-size:.88rem; }

/* ===================================================
   ABOUT
=================================================== */
.about{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:64px;
  align-items:center;
}
.about__media{ position:relative; }
.about__media img{
  width:100%;
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  aspect-ratio:4/3.4;
  object-fit:cover;
}
.about__media-badge{
  position:absolute;
  bottom:-24px; left:-24px;
  background:var(--gold);
  color:var(--navy-darker);
  border-radius:var(--radius);
  padding:16px 22px;
  box-shadow:var(--shadow-md);
  display:flex; flex-direction:column; line-height:1.1;
}
.about__media-badge strong{ font-family:var(--font-head); font-size:1.6rem; font-weight:800; }
.about__media-badge span{ font-size:.8rem; font-weight:600; }

.pillars{ display:flex; gap:14px; margin-top:28px; flex-wrap:wrap; }
.pillars li{
  display:flex; align-items:center; gap:10px;
  background:var(--cream);
  border:1px solid var(--border);
  border-radius:999px;
  padding:10px 20px;
  color:var(--navy);
  font-weight:700;
  font-family:var(--font-head);
  font-size:.92rem;
}
.pillars svg{ color:var(--gold-dark); flex-shrink:0; }

.purpose{
  margin:32px 0 0;
  padding:22px 26px;
  border-left:3px solid var(--turquoise);
  background:var(--cream);
  border-radius:0 var(--radius) var(--radius) 0;
}
.purpose p{
  font-family:var(--font-head);
  font-weight:500;
  font-size:1.05rem;
  color:var(--navy-darker);
  font-style:italic;
  margin-bottom:8px;
}
.purpose cite{
  font-style:normal;
  font-weight:700;
  font-size:.8rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--turquoise-dark);
}

/* ===================================================
   CARDS / SERVICES
=================================================== */
.grid{ display:grid; gap:24px; }
.grid--2{ grid-template-columns:repeat(2, 1fr); }
.grid--3{ grid-template-columns:repeat(3, 1fr); }
.grid--4{ grid-template-columns:repeat(4, 1fr); }

.card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:34px 28px;
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); border-color:transparent; }
.card__icon{
  width:56px; height:56px;
  border-radius:16px;
  background:linear-gradient(150deg, var(--navy), var(--navy-dark));
  color:var(--gold);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:20px;
}
.card h3{ font-size:1.15rem; margin-bottom:10px; }
.card p{ font-size:.95rem; }

/* ===================================================
   STEPS (Linha Mestra)
=================================================== */
.steps{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:20px;
}
.step{
  position:relative;
  background:var(--cream);
  border-radius:var(--radius);
  padding:28px 22px 24px;
  border:1px solid var(--border);
}
.step__num{
  position:absolute; top:18px; right:20px;
  font-family:var(--font-head);
  font-weight:800;
  font-size:1.4rem;
  color:rgba(31, 78, 121, 0.3);
}
.step svg{ color:var(--navy); margin-bottom:16px; }
.step h3{ font-size:1rem; line-height:1.4; }

.wheel-wrap{
  display:flex;
  justify-content:center;
  padding:20px 0 10px;
}
.wheel{
  position:relative;
  width:min(600px, 92vw);
  aspect-ratio:1/1;
}
.wheel__ring{ width:100%; height:100%; display:block; overflow:visible; }
.wheel__seg{
  fill:var(--gold);
  stroke:var(--white);
  stroke-width:3;
  transform-box:fill-box;
  transform-origin:center;
  cursor:pointer;
  opacity:0;
  transform:translate(calc(var(--tx) * 1px), calc(var(--ty) * 1px)) scale(.5);
  transition:opacity .6s cubic-bezier(.16,.8,.3,1), transform .6s cubic-bezier(.16,.8,.3,1), fill .25s ease;
}
.wheel-wrap.is-visible .wheel__seg{ opacity:1; transform:translate(0,0) scale(1); }
.wheel__seg:hover, .wheel__seg.is-active{ fill:var(--navy); }

.wheel__num{
  font-family:var(--font-head);
  font-weight:800;
  font-size:30px;
  fill:#fff;
  text-anchor:middle;
  dominant-baseline:middle;
  pointer-events:none;
  opacity:0;
  transform:translate(calc(var(--tx) * 1px), calc(var(--ty) * 1px));
  transition:opacity .4s ease .1s, transform .6s cubic-bezier(.16,.8,.3,1);
}
.wheel-wrap.is-visible .wheel__num{ opacity:1; transform:translate(0,0); }

.wheel__center{
  position:absolute;
  top:50%; left:50%;
  width:15%;
  transform:translate(-50%,-50%) scale(.5);
  opacity:0;
  transition:opacity .5s ease .15s, transform .5s ease .15s;
}
.wheel-wrap.is-visible .wheel__center{ opacity:1; transform:translate(-50%,-50%) scale(1); }

.wheel__label{
  position:absolute;
  z-index:2;
  transform:translate(calc(-50% + var(--lx)), calc(-50% + var(--ly)));
  width:130px;
  text-align:center;
  font-family:var(--font-head);
  font-weight:700;
  font-size:.85rem;
  line-height:1.3;
  color:var(--navy-darker);
  opacity:0;
  transition:opacity .5s ease .1s, transform .6s cubic-bezier(.16,.8,.3,1);
  cursor:default;
}
.wheel-wrap.is-visible .wheel__label{ opacity:1; transform:translate(-50%,-50%); }
.wheel__label.is-active{ color:var(--gold-dark); }

.wheel__dash{
  stroke:var(--gold-dark);
  stroke-width:2;
  pointer-events:none;
  opacity:0;
  transform:translate(calc(var(--tx) * 1px), calc(var(--ty) * 1px));
  transition:opacity .6s ease, transform .6s cubic-bezier(.16,.8,.3,1);
}
.wheel-wrap.is-visible .wheel__dash{ opacity:1; transform:translate(0,0); }
.wheel__dash.is-active{ stroke:var(--navy); }

.steps--fallback{ display:none; }

/* ===================================================
   DIFFERENTIALS (dark)
=================================================== */
.diff{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);
  padding:28px 24px;
  color:#fff;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.diff svg{ color:var(--gold); }
.diff__num{ font-family:var(--font-head); font-size:2rem; font-weight:800; color:#fff; }
.diff p{ color:rgba(255,255,255,.68); font-size:.92rem; margin:0; }

/* ===================================================
   PORTFOLIO
=================================================== */
.tabs{ display:flex; gap:12px; margin-bottom:36px; }
.tab{
  font-family:var(--font-head);
  font-weight:700;
  font-size:.95rem;
  padding:12px 26px;
  border-radius:999px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--gray);
  cursor:pointer;
  transition:.2s ease;
}
.tab.is-active, .tab:hover{ background:var(--navy); border-color:var(--navy); color:#fff; }

.portfolio-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:20px;
}
.portfolio-grid[hidden]{ display:none; }
.portfolio-grid figure{
  position:relative;
  margin:0;
  border-radius:var(--radius);
  overflow:hidden;
  aspect-ratio:4/3;
  box-shadow:var(--shadow-sm);
}
.portfolio-grid img{ width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.portfolio-grid figure:hover img{ transform:scale(1.08); }
.portfolio-grid figcaption{
  position:absolute; left:0; right:0; bottom:0;
  padding:14px 16px 12px;
  background:linear-gradient(0deg, rgba(15,42,66,.88), transparent);
  color:#fff;
  font-family:var(--font-head);
  font-weight:700;
  font-size:.9rem;
}

/* ===================================================
   CASES
=================================================== */
.cases{ display:grid; grid-template-columns:1fr 1fr; gap:28px; }
.case{
  background:#fff;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--border);
  display:flex;
  flex-direction:column;
}
.case__media{ aspect-ratio:16/9; overflow:hidden; }
.case__media img{ width:100%; height:100%; object-fit:cover; }
.case__body{ padding:30px 30px 34px; }
.case__tag{
  font-family:var(--font-head);
  font-weight:700;
  color:var(--navy);
  font-size:.92rem;
  margin-bottom:14px;
  padding-bottom:14px;
  border-bottom:1px solid var(--border);
}
.case__body p{ font-size:.96rem; }

/* ===================================================
   CONTACT
=================================================== */
.contact{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:center;
}
.contact__cards{ display:grid; gap:16px; }
.contact-card{
  display:flex;
  align-items:center;
  gap:16px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius);
  padding:18px 22px;
  transition:.2s ease;
}
a.contact-card:hover{ background:rgba(255,255,255,.1); transform:translateX(4px); }
.contact-card svg{ color:var(--gold); flex-shrink:0; }
.contact-card span{ display:block; font-size:.78rem; color:rgba(255,255,255,.55); margin-bottom:2px; }
.contact-card strong{ color:#fff; font-family:var(--font-head); font-size:.98rem; }

/* ===================================================
   FOOTER
=================================================== */
.footer{ background:var(--navy-darker); padding:36px 0; }
.footer__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.footer__brand{ display:flex; flex-direction:column; align-items:flex-start; gap:10px; }
.footer__logo{ height:38px; }
.footer__tagline{ color:rgba(255,255,255,.5); font-size:.82rem; font-style:italic; margin:0; }
.footer__nav{ display:flex; gap:22px; flex-wrap:wrap; }
.footer__nav a{ color:rgba(255,255,255,.65); font-size:.88rem; font-weight:600; }
.footer__nav a:hover{ color:var(--gold); }
.footer__copy{ color:rgba(255,255,255,.4); font-size:.82rem; margin:0; }

/* ===================================================
   COOKIE BANNER
=================================================== */
.cookie-banner{
  position:fixed;
  left:24px; right:24px; bottom:100px;
  z-index:950;
  max-width:640px;
  background:var(--navy-darker);
  color:rgba(255,255,255,.85);
  border-radius:var(--radius);
  box-shadow:var(--shadow-md);
  padding:20px 24px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px 20px;
}
.cookie-banner p{ margin:0; font-size:.88rem; flex:1 1 260px; }
.cookie-banner__actions{ display:flex; gap:12px; flex-shrink:0; }
.cookie-banner .btn{ flex-shrink:0; padding:10px 22px; }
.cookie-banner[hidden]{ display:none; }

/* ===================================================
   WHATSAPP FLOAT
=================================================== */
.whatsapp-float{
  position:fixed;
  right:24px; bottom:24px;
  width:60px; height:60px;
  background:var(--whatsapp);
  color:#fff;
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 8px 24px rgba(37,211,102,.45);
  z-index:900;
  animation:wa-pulse 2.6s ease-in-out infinite;
  transition:transform .2s ease, background .2s ease;
}
.whatsapp-float:hover{ background:var(--whatsapp-dark); transform:scale(1.08); }
@keyframes wa-pulse{
  0%,100%{ box-shadow:0 8px 24px rgba(37,211,102,.45); }
  50%{ box-shadow:0 8px 30px rgba(37,211,102,.75), 0 0 0 8px rgba(37,211,102,.12); }
}

/* ===================================================
   REVEAL ANIMATION
=================================================== */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease; }
.reveal.is-visible{ opacity:1; transform:translateY(0); }

/* ===================================================
   RESPONSIVE
=================================================== */
@media (max-width: 1024px){
  .grid--3{ grid-template-columns:repeat(2, 1fr); }
  .grid--4{ grid-template-columns:repeat(2, 1fr); }
  .steps{ grid-template-columns:repeat(2, 1fr); }
  .portfolio-grid{ grid-template-columns:repeat(3, 1fr); }
  .about{ grid-template-columns:1fr; }
  .about__media{ max-width:460px; }
  .contact{ grid-template-columns:1fr; gap:44px; }
}

@media (max-width: 860px){
  .nav{
    position:fixed;
    top:0; right:0;
    height:100vh;
    width:min(320px, 80vw);
    background:var(--navy-darker);
    flex-direction:column;
    align-items:flex-start;
    justify-content:center;
    gap:26px;
    padding:40px;
    transform:translateX(100%);
    transition:transform .35s ease;
    z-index:1001;
  }
  .nav.is-open{ transform:translateX(0); }
  .nav a{ color:#fff; font-size:1.1rem; }
  .nav-toggle{ display:flex; }
  .header.is-scrolled .nav-toggle span{ background: var(--navy-darker); }
  .header:not(.is-scrolled) .nav-toggle span{ background:#fff; }
  .header__cta{ display:none; }
  .hero__stats-grid{ grid-template-columns:repeat(2, 1fr); row-gap:24px; }
  .portfolio-grid{ grid-template-columns:repeat(2, 1fr); }
  .cases{ grid-template-columns:1fr; }

  .wheel-wrap{ display:none; }
  .steps--fallback{ display:grid; }
}

@media (max-width: 560px){
  .section{ padding:64px 0; }
  .hero{ padding-top:120px; }
  .hero__actions{ flex-direction:column; align-items:flex-start; }
  .grid--2, .grid--3, .grid--4, .steps{ grid-template-columns:1fr; }
  .portfolio-grid{ grid-template-columns:repeat(2, 1fr); gap:12px; }
  .about__media-badge{ left:12px; bottom:-18px; padding:12px 18px; }
  .whatsapp-float{ right:16px; bottom:16px; width:54px; height:54px; }
}