/* ===== Dinamica Engenharia — estilos =====
   cores da marca: */
:root{--primary:#0f5a37;--primary-dark:#093d25;--accent:#f5a623;--text:#1d2a23;--muted:#5a6b62;--bg-alt:#f2f7f4;--radius:12px;--shadow:0 10px 30px rgba(15,90,55,.12)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);line-height:1.65;background:#fff}
img{max-width:100%;display:block}
a{color:var(--primary)}
.container{width:min(1160px,92%);margin:auto}
h1,h2,h3{line-height:1.2;color:var(--primary-dark)}
h2{font-size:clamp(1.7rem,3vw,2.4rem);margin-bottom:1rem}
p{margin-bottom:1rem}
.eyebrow{color:var(--accent);font-weight:700;text-transform:uppercase;letter-spacing:.12em;font-size:.82rem;margin-bottom:.5rem}
.btn{display:inline-block;background:var(--accent);color:var(--primary-dark);font-weight:700;padding:.9rem 1.6rem;border-radius:50px;text-decoration:none;border:2px solid var(--accent);transition:.25s;cursor:pointer;font-size:1rem}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(245,166,35,.35)}
.btn-outline{background:transparent;color:#fff;border-color:#fff}
.btn-outline:hover{background:#fff;color:var(--primary)}
.btn-sm{padding:.55rem 1.2rem}
.btn-block{width:100%}
/* header */
.header{position:fixed;inset:0 0 auto;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);transition:box-shadow .3s}
.header.scrolled{box-shadow:0 4px 20px rgba(0,0,0,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo img{height:50px;width:auto}
.menu{display:flex;gap:1.8rem;align-items:center}
.menu a{text-decoration:none;font-weight:600;color:var(--text)}
.menu a:not(.btn):hover{color:var(--accent)}
.menu-toggle{display:none;background:none;border:0;cursor:pointer;padding:.5rem}
.menu-toggle span{display:block;width:26px;height:3px;background:var(--primary);margin:5px 0;border-radius:2px;transition:.3s}
/* hero */
.hero{min-height:92vh;display:flex;align-items:center;background:linear-gradient(90deg,rgba(9,61,37,.92) 0%,rgba(9,61,37,.75) 45%,rgba(9,61,37,.25) 100%),url(../img/capa.jpg) center/cover;color:#fff;padding:120px 0 80px}
.hero-content{max-width:760px}
.hero h1{color:#fff;font-size:clamp(2rem,4.4vw,3.2rem);margin-bottom:1.2rem}
.lead{font-size:1.15rem;opacity:.92;margin-bottom:2rem}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap}
/* stats */
.stats{background:var(--primary);color:#fff;padding:2.5rem 0}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);max-width:640px;margin:auto;gap:1rem;text-align:center}
.stats strong{display:block;font-size:2.4rem;color:var(--accent)}
.stats span{opacity:.85}
/* sections */
.section{padding:90px 0}
.section-alt{background:var(--bg-alt)}
.section-head{text-align:center;max-width:640px;margin:0 auto 3rem}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
#contato .two-col{align-items:start}
.checks{list-style:none;margin-top:1.5rem}
.checks li{padding-left:1.8rem;position:relative;margin-bottom:.8rem}
.checks li:before{content:"✔";position:absolute;left:0;color:var(--accent);font-weight:700}
.about-img{position:relative}
.about-img img{border-radius:var(--radius);box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover;width:100%}
.badge{position:absolute;bottom:-20px;left:-20px;background:var(--accent);color:var(--primary-dark);padding:1rem 1.4rem;border-radius:var(--radius);box-shadow:var(--shadow)}
.badge strong{display:block;font-size:1.3rem}
/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.card{background:#fff;padding:2rem;border-radius:var(--radius);box-shadow:var(--shadow);transition:.3s;border-top:4px solid transparent}
.card:hover{transform:translateY(-6px);border-top-color:var(--accent)}
.card .icon{font-size:2.2rem;margin-bottom:1rem}
.card h3{margin-bottom:.6rem}
.card p{color:var(--muted);margin:0}
/* projetos */
.filters{display:flex;justify-content:center;gap:.6rem;flex-wrap:wrap;margin-bottom:2rem}
.filter{background:var(--bg-alt);border:0;padding:.6rem 1.3rem;border-radius:50px;font-weight:600;cursor:pointer;color:var(--text);font-size:.95rem}
.filter.active,.filter:hover{background:var(--primary);color:#fff}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.project{position:relative;overflow:hidden;border-radius:var(--radius);box-shadow:var(--shadow)}
.project img{aspect-ratio:8/5;object-fit:cover;width:100%;transition:transform .5s}
.project:hover img{transform:scale(1.07)}
.project figcaption{position:absolute;inset:auto 0 0;padding:1.2rem;background:linear-gradient(transparent,rgba(9,61,37,.92));color:#fff}
.project h3{color:#fff;font-size:1.1rem}
.project span{font-size:.85rem;opacity:.85}
.project.hide{display:none}
/* NR-13 */
.nr13{background:linear-gradient(135deg,var(--primary-dark),var(--primary));color:#e6f0ea}
.nr13 h2,.nr13 h3{color:#fff}
.nr13 .section-head p{color:#d3e4da}
.nr-intro{display:grid;grid-template-columns:1.05fr 1fr;gap:3rem;align-items:center;margin-bottom:3rem}
.nr-intro p{color:#d3e4da}
.nr-img img{height:auto;border-radius:var(--radius);box-shadow:0 20px 40px rgba(0,0,0,.3);aspect-ratio:16/10;object-fit:cover;width:100%}
.nr-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.nr-item{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:1.6rem;transition:.3s}
.nr-item:hover{background:rgba(255,255,255,.12);transform:translateY(-4px)}
.nr-item h3{font-size:1.1rem;margin-bottom:.6rem}
.nr-item p{margin:0;font-size:.95rem;color:#d3e4da}
.nr-cta{margin-top:2.5rem;display:flex;flex-direction:column;gap:1.2rem;align-items:center;text-align:center;background:rgba(0,0,0,.18);padding:2rem;border-radius:var(--radius)}
.nr-cta p{margin:0;max-width:680px}
.nr-cta strong{color:var(--accent)}
.card a{color:var(--primary);font-weight:600}
/* AVCB e incêndio */
.incendio{background:var(--bg-alt)}
.inc-intro{display:grid;grid-template-columns:1.05fr 1fr;gap:3rem;align-items:center;margin-bottom:3rem}
.inc-highlights{list-style:none;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:1rem 1.6rem;border-left:5px solid #d64532;margin-top:1.2rem}
.inc-highlights li{padding:.6rem 0 .6rem 1.9rem;position:relative;border-bottom:1px solid #e5ece8}
.inc-highlights li:last-child{border-bottom:0}
.inc-highlights li:before{content:"🔥";position:absolute;left:0;top:.55rem}
.inc-highlights strong{color:var(--primary-dark)}
.inc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.inc-item{background:#fff;border-radius:var(--radius);padding:1.6rem;box-shadow:var(--shadow);border-top:4px solid #d64532;transition:.3s}
.inc-item:hover{transform:translateY(-4px)}
.inc-item h3{font-size:1.1rem;margin-bottom:.6rem}
.inc-item p{margin:0;font-size:.95rem;color:var(--muted)}
.inc-cta{background:var(--primary);color:#e6f0ea}
.cards-4{grid-template-columns:repeat(4,1fr);gap:1.2rem}
.cards-4 .card{padding:1.6rem 1.4rem}
.card-featured{position:relative;border-top:4px solid var(--accent);background:linear-gradient(180deg,#f3faf6,#fff)}
.card-featured h3{color:var(--primary)}
.lead strong{color:var(--accent);font-weight:700}
/* depoimentos */
.quote{background:#fff;padding:2rem;border-radius:var(--radius);box-shadow:var(--shadow);border-left:4px solid var(--accent)}
.quote p{font-style:italic}
.quote cite{font-weight:700;color:var(--primary);font-style:normal}
/* cta */
.cta{background:linear-gradient(rgba(9,61,37,.82),rgba(9,61,37,.82)),url(../img/contato-faixa.jpg) center/cover;color:#fff;padding:70px 0;text-align:center}
.cta h2{color:#fff}
/* contato */
.contact-list{list-style:none;margin:1.5rem 0}
.contact-list li{display:flex;gap:.8rem;margin-bottom:.8rem;align-items:flex-start}
.map iframe{width:100%;height:240px;border:0;border-radius:var(--radius)}
.form{background:var(--bg-alt);padding:2.2rem;border-radius:var(--radius);display:grid;gap:1rem}
.form label{display:grid;gap:.35rem;font-weight:600;font-size:.92rem}
.form input,.form select,.form textarea{font:inherit;padding:.8rem 1rem;border:1px solid #cfdcd4;border-radius:8px;background:#fff;width:100%}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--accent);border-color:transparent}
.form .invalid{border-color:#d33}
.form-note{font-size:.85rem;color:var(--muted);margin:0}
/* footer */
.footer{background:var(--primary-dark);color:#cfe0d6;padding:60px 0 20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}
.footer h4{color:#fff;margin-bottom:1rem}
.footer a{display:block;color:#cfe0d6;text-decoration:none;margin-bottom:.4rem}
.footer a:hover{color:var(--accent)}
.footer img{margin-bottom:1rem}
.small{font-size:.85rem}
.copy{border-top:1px solid rgba(255,255,255,.1);margin-top:2rem;padding-top:1.2rem;text-align:center;font-size:.85rem}
.whats{position:fixed;right:20px;bottom:20px;width:58px;height:58px;border-radius:50%;background:#25d366;display:grid;place-items:center;box-shadow:0 6px 20px rgba(0,0,0,.25);z-index:60;transition:.3s}
.whats:hover{transform:scale(1.1)}
/* animação */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s,transform .7s}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}html{scroll-behavior:auto}}
/* responsivo */
@media (max-width:1100px){
 .menu-toggle{display:block}
 .menu{position:fixed;top:72px;left:0;right:0;flex-direction:column;background:#fff;padding:1.5rem;gap:1.2rem;box-shadow:0 10px 20px rgba(0,0,0,.1);transform:translateY(-130%);transition:transform .3s;z-index:-1}
 .menu.open{transform:none}
 .menu-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
 .menu-toggle.open span:nth-child(2){opacity:0}
 .menu-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
}
@media (max-width:960px){
 .cards,.cards-4,.gallery,.nr-grid,.inc-grid{grid-template-columns:repeat(2,1fr)}
 .two-col,.nr-intro,.inc-intro{grid-template-columns:1fr;gap:3rem}
}
@media (max-width:760px){
 .hero{background:linear-gradient(rgba(9,61,37,.82),rgba(9,61,37,.82)),url(../img/capa.jpg) 70% center/cover}
 .cards,.cards-4,.gallery,.footer-grid,.nr-grid,.inc-grid{grid-template-columns:1fr}
 .section{padding:65px 0}
 .badge{left:10px;bottom:-15px}
}
.hero-404{text-align:center}