/* ===== JRC Engenharia e Geotecnia — estilos ===== */
:root{
  --navy:#17324f;
  --navy-2:#1d4066;
  --navy-3:#0f2438;
  --gray:#8b8d90;
  --ink:#242a30;
  --muted:#6f7276;
  --bg:#ffffff;
  --bg-soft:#f4f6f8;
  --line:#e4e8ee;
  --shadow:0 10px 30px rgba(17,42,73,.08);
  --radius:14px;
  --wrap:1140px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Segoe UI',Arial,Helvetica,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}

h1,h2,h3{color:var(--navy);line-height:1.2;font-weight:800}
.section{padding:84px 0}
.section--soft{background:var(--bg-soft)}
.eyebrow{
  display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:2.5px;
  text-transform:uppercase;color:var(--gray);margin-bottom:12px;
}
.section h2{font-size:clamp(1.7rem,3.4vw,2.4rem);margin-bottom:14px}
.section .lead{max-width:720px;color:var(--muted);font-size:1.06rem}

/* ===== Header ===== */
.header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.nav__logo{height:46px;width:auto}
.nav__menu{display:flex;gap:30px;align-items:center;list-style:none}
.nav__menu a{font-weight:600;color:var(--ink);font-size:.98rem;transition:color .2s}
.nav__menu a:hover{color:var(--navy)}
.nav__menu a.nav__cta{
  background:var(--navy);color:#fff;padding:11px 22px;border-radius:40px;
  font-weight:700;font-size:.95rem;transition:background .2s,transform .2s;
}
.nav__menu a.nav__cta:hover{background:var(--navy-2);color:#fff;transform:translateY(-1px)}
.nav__toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav__toggle span{display:block;width:26px;height:3px;background:var(--navy);margin:5px 0;border-radius:2px;transition:.3s}

/* ===== Hero ===== */
.hero{
  color:#fff;overflow:hidden;
  /* Foto da obra + véu azul em degradê (mais forte à esquerda, onde fica o texto).
     Para um véu uniforme de ~20% de transparência, troque o gradiente por:
     linear-gradient(rgba(15,36,56,.80),rgba(15,36,56,.80)) */
  background:
    linear-gradient(100deg, rgba(15,36,56,.88) 0%, rgba(23,50,79,.77) 42%, rgba(29,64,102,.50) 100%),
    url('hero-obra.jpg?v=3');
  background-size:cover;
  background-position:center 38%;
  background-repeat:no-repeat;
}
.hero__inner{padding:110px 0 120px;max-width:760px}
.hero h1{color:#fff;font-size:clamp(2.1rem,5vw,3.4rem);letter-spacing:-.5px}
.hero h1 span{color:#9db6cf}
.hero p{margin:22px 0 34px;font-size:1.18rem;color:#d7e0ea;max-width:620px}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:9px;font-weight:700;
  padding:14px 28px;border-radius:44px;transition:transform .2s,background .2s,box-shadow .2s;
}
.btn--primary{background:#fff;color:var(--navy)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.22)}
.btn--ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55)}
.btn--ghost:hover{background:rgba(255,255,255,.12)}
.btn--navy{background:var(--navy);color:#fff}
.btn--navy:hover{background:var(--navy-2);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}
.hero__tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px}
.hero__tags span{
  font-size:.86rem;font-weight:600;color:#cdd9e6;
  border:1px solid rgba(255,255,255,.28);padding:7px 15px;border-radius:30px;
}

/* ===== Sobre ===== */
.about{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.about__text p{color:var(--muted);margin-bottom:16px}
.about__values{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:8px}
.value{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.value h3{font-size:1.05rem;margin-bottom:6px}
.value p{font-size:.92rem;color:var(--muted);margin:0}
.value .ic{width:40px;height:40px;border-radius:10px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.value .ic svg{width:22px;height:22px;stroke:var(--navy)}

/* ===== Serviços ===== */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin-top:46px}
.card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;transition:transform .25s,box-shadow .25s,border-color .25s;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#cfd8e2}
.card__ic{
  width:54px;height:54px;border-radius:12px;
  background:linear-gradient(135deg,var(--navy),var(--navy-2));
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.card__ic svg{width:28px;height:28px;stroke:#fff;fill:none;stroke-width:1.8}
.card h3{font-size:1.16rem;margin-bottom:10px}
.card p{font-size:.95rem;color:var(--muted);margin:0}

/* ===== Atuação (faixa) ===== */
.strip{background:var(--navy);color:#fff}
.strip .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;text-align:center;padding:56px 22px}
.strip h3{color:#fff;font-size:1.02rem;margin-top:12px}
.strip p{color:#b9c6d4;font-size:.9rem;margin-top:4px}
.strip .ic{width:46px;height:46px;margin:0 auto;display:flex;align-items:center;justify-content:center}
.strip .ic svg{width:34px;height:34px;stroke:#9db6cf;fill:none;stroke-width:1.6}

/* ===== Contato ===== */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.contact__card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
.contact__item{display:flex;gap:16px;align-items:flex-start;margin-bottom:22px}
.contact__item:last-child{margin-bottom:0}
.contact__item .ic{width:44px;height:44px;flex:0 0 44px;border-radius:11px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center}
.contact__item .ic svg{width:22px;height:22px;stroke:var(--navy);fill:none;stroke-width:1.8}
.contact__item h4{color:var(--navy);font-size:1rem;margin-bottom:2px}
.contact__item p,.contact__item a{color:var(--muted);font-size:.98rem}
.contact__item a:hover{color:var(--navy)}
.contact__cta h2{margin-bottom:14px}
.contact__cta p{color:var(--muted);margin-bottom:26px}

/* ===== Footer ===== */
.footer{background:var(--navy-3);color:#c4d0dc;padding:52px 0 26px}
.footer__top{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer__logo-chip{display:inline-flex;background:#fff;padding:12px 18px;border-radius:12px}
.footer__logo{height:44px}
.footer__nav{display:flex;gap:26px;flex-wrap:wrap}
.footer__nav a{color:#c4d0dc;font-size:.95rem;font-weight:600}
.footer__nav a:hover{color:#fff}
.footer__social{display:flex;gap:12px}
.footer__social a{
  width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  transition:background .2s,transform .2s;
}
.footer__social a:hover{background:#fff;transform:translateY(-2px)}
.footer__social svg{width:20px;height:20px;fill:#c4d0dc;transition:fill .2s}
.footer__social a:hover svg{fill:var(--navy)}
.footer__bottom{padding-top:22px;font-size:.86rem;color:#8fa2b4;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

/* ===== Responsivo ===== */
@media(max-width:900px){
  .about{grid-template-columns:1fr;gap:36px}
  .strip .wrap{grid-template-columns:1fr 1fr;gap:34px}
  .contact{grid-template-columns:1fr;gap:34px}
}
@media(max-width:640px){
  .section{padding:60px 0}
  /* No celular o texto ocupa toda a largura: véu azul mais uniforme para leitura */
  .hero{
    background:
      linear-gradient(rgba(15,36,56,.85) 0%, rgba(23,50,79,.77) 100%),
      url('hero-obra.jpg?v=3');
    background-size:cover;
    background-position:center;
  }
  .nav__menu{
    position:fixed;top:74px;left:0;right:0;background:#fff;flex-direction:column;
    gap:0;padding:10px 0;border-bottom:1px solid var(--line);
    transform:translateY(-140%);transition:transform .3s;box-shadow:var(--shadow);
  }
  .nav__menu.open{transform:translateY(0)}
  .nav__menu li{width:100%;text-align:center}
  .nav__menu a{display:block;padding:14px}
  .nav__menu a.nav__cta{margin:10px 22px;display:block;text-align:center}
  .nav__toggle{display:block}
  .about__values{grid-template-columns:1fr}
  .footer__top{flex-direction:column;align-items:flex-start}
}