*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --black:#1a1a1a;
  --dark:#222;
  --orange:#e87a1e;
  --orange-dark:#c96510;
  --white:#fff;
  --gray-light:#f5f5f5;
  --gray:#888;
  --transition:.3s ease;
}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',Roboto,Arial,sans-serif;color:var(--dark);line-height:1.6;overflow-x:hidden}

/* ── HEADER ── */
.header{position:fixed;top:0;left:0;width:100%;z-index:1000;padding:12px 0;background:var(--white);box-shadow:0 2px 12px rgba(0,0,0,.08);transition:background var(--transition),box-shadow var(--transition)}
.header.scrolled{background:var(--white);box-shadow:0 2px 20px rgba(0,0,0,.15)}
.header .container{display:flex;align-items:center;justify-content:space-between}
.logo img{height:48px;transition:height var(--transition)}
.header.scrolled .logo img{height:40px}
.nav-links{display:flex;gap:28px;list-style:none}
.nav-links a{color:var(--black);text-decoration:none;font-size:.9rem;font-weight:500;letter-spacing:.5px;text-transform:uppercase;position:relative;padding:4px 0;transition:color var(--transition)}
.nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--orange);transition:width var(--transition)}
.nav-links a:hover,.nav-links a.active{color:var(--orange)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:8px}
.hamburger span{display:block;width:26px;height:3px;background:var(--black);border-radius:2px;transition:var(--transition)}

/* ── HERO ── */
.hero{position:relative;height:100vh;min-height:600px;display:flex;align-items:center;justify-content:center;background:var(--black);overflow:hidden}
.hero-slider{position:absolute;inset:0}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.2s ease}
.hero-slide.active{opacity:1}
.hero-slide img{width:100%;height:100%;object-fit:cover;filter:brightness(.45)}
.hero-content{position:relative;z-index:2;text-align:center;color:var(--white);padding:0 16px;max-width:800px}
.hero-content h1{font-size:3.2rem;font-weight:700;line-height:1.15;margin-bottom:16px;text-shadow:0 2px 12px rgba(0,0,0,.5)}
.hero-content h1 span{color:var(--orange)}
.hero-content p{font-size:1.2rem;margin-bottom:32px;opacity:.9}
.hero-btn{display:inline-block;padding:14px 40px;background:var(--orange);color:var(--white);text-decoration:none;font-weight:600;font-size:1rem;border-radius:4px;transition:background var(--transition),transform var(--transition)}
.hero-btn:hover{background:var(--orange-dark);transform:translateY(-2px)}
.hero-dots{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:3}
.hero-dots button{width:12px;height:12px;border-radius:50%;border:2px solid var(--white);background:transparent;cursor:pointer;transition:background var(--transition)}
.hero-dots button.active{background:var(--orange);border-color:var(--orange)}

/* ── SECTION COMMON ── */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
section{padding:80px 0}
.section-title{text-align:center;margin-bottom:50px}
.section-title h2{font-size:2.2rem;font-weight:700;color:var(--black);margin-bottom:8px}
.section-title h2 span{color:var(--orange)}
.section-title p{color:var(--gray);font-size:1rem}
.section-line{width:60px;height:4px;background:var(--orange);margin:12px auto 0;border-radius:2px}

/* ── SOBRE NOS ── */
.sobre{background:var(--white)}
.sobre-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.sobre-img{position:relative;border-radius:8px;overflow:hidden}
.sobre-img img{width:100%;height:400px;object-fit:cover;border-radius:8px}
.sobre-img .accent{position:absolute;bottom:0;left:0;width:6px;height:60%;background:var(--orange);border-radius:0 4px 0 8px}
.sobre-text h3{font-size:1.5rem;font-weight:700;margin-bottom:16px;color:var(--black)}
.sobre-text p{margin-bottom:14px;color:#555;font-size:.95rem}

/* ── MISSAO VISAO VALORES ── */
.mvv{background:var(--gray-light)}
.mvv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.mvv-card{background:var(--white);border-radius:8px;padding:40px 30px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:transform var(--transition),box-shadow var(--transition);border-top:4px solid transparent}
.mvv-card:hover{transform:translateY(-6px);box-shadow:0 8px 30px rgba(0,0,0,.1);border-top-color:var(--orange)}
.mvv-icon{width:64px;height:64px;margin:0 auto 20px;background:var(--orange);border-radius:50%;display:flex;align-items:center;justify-content:center}
.mvv-icon svg{width:30px;height:30px;fill:var(--white)}
.mvv-card h3{font-size:1.3rem;margin-bottom:12px;color:var(--black)}
.mvv-card p{color:#555;font-size:.9rem;line-height:1.7}

/* ── SERVICOS ── */
.servicos{background:var(--white)}
.servicos-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.servico-card{background:var(--black);color:var(--white);border-radius:8px;overflow:hidden;position:relative;transition:transform var(--transition)}
.servico-card:hover{transform:translateY(-4px)}
.servico-card img{width:100%;height:220px;object-fit:cover;opacity:.5;transition:opacity var(--transition)}
.servico-card:hover img{opacity:.7}
.servico-card .overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:24px;background:linear-gradient(transparent 30%,rgba(0,0,0,.85))}
.servico-card h3{font-size:1.15rem;font-weight:600;margin-bottom:6px}
.servico-card h3 span{color:var(--orange)}
.servico-card p{font-size:.85rem;opacity:.85;line-height:1.5}

/* ── ENSAIOS / GALERIA ── */
.ensaios{background:var(--gray-light)}
.ensaio-tabs{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:36px}
.ensaio-tabs button{padding:10px 22px;border:2px solid var(--black);background:transparent;color:var(--black);font-weight:600;font-size:.85rem;border-radius:30px;cursor:pointer;transition:all var(--transition)}
.ensaio-tabs button.active,.ensaio-tabs button:hover{background:var(--orange);border-color:var(--orange);color:var(--white)}
.ensaio-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.ensaio-gallery .gallery-item{border-radius:8px;overflow:hidden;position:relative;cursor:pointer;aspect-ratio:4/3}
.ensaio-gallery .gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.ensaio-gallery .gallery-item:hover img{transform:scale(1.08)}
.ensaio-gallery .gallery-item .label{position:absolute;bottom:0;left:0;right:0;padding:10px 14px;background:linear-gradient(transparent,rgba(0,0,0,.75));color:var(--white);font-size:.8rem;font-weight:500}

/* ── CLIENTES ── */
.clientes{background:var(--white);overflow:hidden}
.clientes-track{display:flex;gap:50px;animation:scrollLogos 30s linear infinite;width:max-content}
.clientes-track:hover{animation-play-state:paused}
.clientes-track img{height:60px;width:auto;object-fit:contain;filter:grayscale(100%) opacity(.6);transition:filter var(--transition)}
.clientes-track img:hover{filter:grayscale(0) opacity(1)}
@keyframes scrollLogos{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* ── NUMEROS ── */
.numeros{background:var(--black);color:var(--white);text-align:center}
.numeros .section-title h2{color:var(--white)}
.numeros-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.numero-item h3{font-size:2.8rem;font-weight:700;color:var(--orange);margin-bottom:4px}
.numero-item p{font-size:.9rem;text-transform:uppercase;letter-spacing:1px;opacity:.8}

/* ── CONTACTO ── */
.contacto{background:var(--white)}
.contacto-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px}
.contacto-info{display:flex;flex-direction:column;gap:28px}
.contacto-item{display:flex;gap:16px;align-items:flex-start}
.contacto-item .icon-box{width:50px;height:50px;min-width:50px;background:var(--orange);border-radius:50%;display:flex;align-items:center;justify-content:center}
.contacto-item .icon-box svg{width:22px;height:22px;fill:var(--white)}
.contacto-item h4{font-size:1rem;margin-bottom:2px;color:var(--black)}
.contacto-item p,.contacto-item a{color:#555;font-size:.9rem;text-decoration:none}
.contacto-item a:hover{color:var(--orange)}
.contacto-form input,.contacto-form textarea{width:100%;padding:14px 18px;border:1px solid #ddd;border-radius:6px;font-size:.9rem;font-family:inherit;margin-bottom:14px;transition:border-color var(--transition);background:var(--gray-light)}
.contacto-form input:focus,.contacto-form textarea:focus{outline:none;border-color:var(--orange)}
.contacto-form textarea{height:140px;resize:vertical}
.contacto-form button{padding:14px 40px;background:var(--orange);color:var(--white);border:none;font-size:1rem;font-weight:600;border-radius:6px;cursor:pointer;transition:background var(--transition)}
.contacto-form button:hover{background:var(--orange-dark)}
.email-alt{display:block;text-align:center;margin-top:8px;color:var(--gray);font-size:.85rem;text-decoration:none;transition:color var(--transition)}
.email-alt:hover{color:var(--orange)}

/* ── FOOTER ── */
.footer{background:var(--black);color:rgba(255,255,255,.7);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-about p{font-size:.85rem;line-height:1.7;margin-top:16px}
.footer-about img{height:42px}
.footer h4{color:var(--white);font-size:1rem;margin-bottom:16px;text-transform:uppercase;letter-spacing:1px}
.footer-links{list-style:none}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.7);text-decoration:none;font-size:.85rem;transition:color var(--transition)}
.footer-links a:hover{color:var(--orange)}
.footer-social{display:flex;gap:12px;margin-top:16px}
.footer-social a{width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.3);display:flex;align-items:center;justify-content:center;transition:all var(--transition)}
.footer-social a:hover{background:var(--orange);border-color:var(--orange)}
.footer-social a svg{width:16px;height:16px;fill:var(--white)}
.footer-bottom{text-align:center;padding:20px 0;font-size:.8rem}

/* ── LIGHTBOX ── */
.lightbox{display:none;position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:9999;align-items:center;justify-content:center}
.lightbox.open{display:flex}
.lightbox img{max-width:90%;max-height:85vh;border-radius:6px;box-shadow:0 0 40px rgba(0,0,0,.5)}
.lightbox-close{position:absolute;top:20px;right:30px;background:none;border:none;color:var(--white);font-size:2.5rem;cursor:pointer;line-height:1}

/* ── SCROLL TOP ── */
.scroll-top{position:fixed;bottom:30px;right:30px;width:46px;height:46px;background:var(--orange);color:var(--white);border:none;border-radius:50%;font-size:1.2rem;cursor:pointer;opacity:0;visibility:hidden;transition:all var(--transition);z-index:999;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(0,0,0,.3)}
.scroll-top.visible{opacity:1;visibility:visible}
.scroll-top:hover{background:var(--orange-dark);transform:translateY(-3px)}

/* ── WHATSAPP FLOAT ── */
.whatsapp-float{position:fixed;bottom:30px;left:30px;z-index:999}
.whatsapp-float a{display:flex;align-items:center;justify-content:center;width:56px;height:56px;background:#25d366;border-radius:50%;box-shadow:0 4px 14px rgba(37,211,102,.4);transition:transform var(--transition)}
.whatsapp-float a:hover{transform:scale(1.1)}
.whatsapp-float svg{width:28px;height:28px;fill:var(--white)}

/* ── ANIMATIONS ── */
.fade-up{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* ── RESPONSIVE ── */
@media(max-width:992px){
  .sobre-grid,.contacto-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .numeros-grid{grid-template-columns:repeat(2,1fr)}
  .mvv-grid{grid-template-columns:1fr}
  .hero-content h1{font-size:2.4rem}
}
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:100%;left:0;width:100%;background:var(--white);flex-direction:column;padding:20px;gap:16px;box-shadow:0 8px 20px rgba(0,0,0,.1)}
  .nav-links.open{display:flex}
  .hamburger{display:flex}
  .hero-content h1{font-size:2rem}
  .numeros-grid{grid-template-columns:1fr 1fr}
  .servicos-grid{grid-template-columns:1fr}
  .ensaio-gallery{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
}