:root{
  --bg-primary:#0d1b2a;
  --bg-secondary:#162538;
  --gold:#bfa46f;
  --light:#f2f2f2;
  --dark:#000;
  --transition:.3s ease;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Lato',sans-serif;
  background:var(--bg-primary);
  color:var(--light);
  line-height:1.65;
  overflow-x:hidden;
}
.container{width:90%;max-width:1200px;margin:auto;}
.btn{
  display:inline-block;
  padding:.9rem 1.8rem;
  background:var(--gold);
  color:var(--dark);
  border-radius:4px;
  text-decoration:none;
  font-weight:700;
  transition:opacity var(--transition);
}
.btn:hover{opacity:.85;}
.btn.outline{
  background:transparent;
  color:var(--gold);
  border:2px solid var(--gold);
}
header{
  position:fixed;
  width:100%;
  top:0;
  background:rgba(13,27,42,.85);
  backdrop-filter:blur(6px);
  z-index:1000;
  transition:padding var(--transition);
}
header.scrolled{padding:.4rem 0;}
.navbar{display:flex;align-items:center;justify-content:space-between;padding:1rem 0;}
.navbar img{height:60px;filter:drop-shadow(0 0 2px rgba(0,0,0,.3));}
.nav-links{display:flex;gap:1.5rem;}
.nav-links a{
  color:var(--light);
  text-decoration:none;
  font-weight:700;
  position:relative;
}
.nav-links a::after{
  content:'';
  position:absolute;
  left:0;bottom:-4px;
  width:0;height:2px;
  background:var(--gold);
  transition:width .2s;
}
.nav-links a:hover::after,.nav-links a.active::after{width:100%;}
.hamburger{display:none;flex-direction:column;cursor:pointer;}
.hamburger span{width:26px;height:3px;background:var(--light);margin:4px 0;transition:var(--transition);}
.top-btn{position:fixed;right:1.2rem;bottom:1.2rem;width:45px;height:45px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--gold);color:var(--dark);font-size:1.3rem;cursor:pointer;opacity:0;pointer-events:none;transition:opacity var(--transition);}
.top-btn.show{opacity:1;pointer-events:auto;}
/* Hero */
.hero{
  padding-top:calc(100px + 4rem);
  min-height:100vh;
  display:flex;
  align-items:center;
}
.hero-inner{
  display:flex;
  align-items:center;
  gap:2rem;
  flex-wrap:wrap;
}
.hero-content{
  flex:1 1 320px;
}
.hero-content h1{
  font-family:'Merriweather',serif;
  font-size:2.8rem;
  color:var(--gold);
  margin-bottom:1rem;
}
.hero-content p{font-size:1.1rem;margin-bottom:2rem;}
.hero-img{
  flex:1 1 280px;
  max-width:360px;
}
.hero-img img{
  width:100%;
  border-radius:8px;
  box-shadow:0 6px 12px rgba(0,0,0,.4);
}
/* Sections */
section{padding:4rem 0;}
section h2{
  font-family:'Merriweather',serif;
  font-size:2.2rem;
  color:var(--gold);
  text-align:center;
  margin-bottom:1rem;
}
.timeline{border-left:3px solid var(--gold);margin-top:2rem;padding-left:1.5rem;}
.timeline-item{position:relative;margin-bottom:1.5rem;}
.timeline-item::before{
  content:'';
  position:absolute;
  left:-10px;
  top:0;
  width:16px;height:16px;
  background:var(--gold);
  border-radius:50%;
}
.services-grid{
  display:grid;
  gap:1.5rem;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  margin-top:2rem;
}
.service-card{
  background:var(--bg-secondary);
  padding:2rem;
  border-radius:8px;
  border:1px solid rgba(255,255,255,.05);
  transition:transform var(--transition);
}
.service-card:hover{transform:translateY(-6px);}
.service-card h3{color:var(--gold);margin-bottom:.8rem;}
.process-list{counter-reset:step;margin-top:2rem;}
.process-list li{
  list-style:none;
  margin-bottom:1rem;
  padding-left:2.4rem;
  position:relative;
}
.process-list li::before{
  counter-increment:step;
  content:counter(step);
  position:absolute;
  left:0;top:0;
  width:32px;height:32px;
  border-radius:50%;
  background:var(--gold);
  color:var(--dark);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;
}
form{
  display:grid;
  gap:1rem;
  margin-top:2rem;
}
form input,form textarea{
  padding:.8rem;
  border:none;
  border-radius:4px;
  background:var(--bg-secondary);
  color:var(--light);
  font-size:1rem;
}
footer{
  background:#000;
  text-align:center;
  padding:2rem 1rem;
  font-size:.9rem;
}
footer a{color:var(--gold);}
/* Botão flutuante WhatsApp */
.whatsapp-btn{
  position:fixed;
  box-sizing:border-box;
  right:1.2rem;
  bottom:4.5rem;              /* fica acima do botão “top-btn” */
  width:4rem;                 /* círculo maior que o ícone */
  height:4rem;
  background:#25d366;
  color:#fff;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.9rem;           /* ícone ~34 px */
  text-decoration:none;
  box-shadow:0 4px 12px rgba(0,0,0,.35);
  transition:opacity .3s ease, transform .3s ease;
  z-index:999;
}
.whatsapp-btn:hover{
  transform:scale(1.5);
  opacity:.9;
}

/* Ajuste responsivo em telas até 480 px */
@media(max-width:480px){
  .whatsapp-btn{
    right:1rem;
    bottom:4rem;
    width:48px;
    height:48px;
    font-size:1.6rem;       /* ícone proporcional */
  }
}
@media(max-width:768px){
  .nav-links{
    position:fixed;
    top:0;right:-100%;
    width:220px;height:100vh;
    background:var(--bg-primary);
    flex-direction:column;
    align-items:center;
    padding-top:6rem;
    transition:right var(--transition);
  }
  .nav-links.open{right:0;}
  .hamburger{display:flex;}
  .hero-inner{flex-direction:column;}
  .hero-img{max-width:280px;}
}