/* ============ Zetha Engenharia — Estilos globais ============ */
:root{
  --navy:#1b2447;
  --navy-deep:#121833;
  --graphite:#4d5468;
  --bg:#ffffff;
  --fg:#1a1f33;
  --muted:#f3f4f8;
  --border:#e6e8ef;
  --card:#ffffff;
  --white:#ffffff;
  --destructive:#c0392b;
  --radius:0.75rem;
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0;border-color:var(--border)}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--fg);line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:'Space Grotesk','Inter',sans-serif;letter-spacing:-0.02em;line-height:1.15;color:var(--navy)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}

.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.88);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:80px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{
  width:40px;height:40px;border-radius:8px;background:var(--navy);
  color:#fff;display:grid;place-items:center;font-family:'Space Grotesk';
  font-weight:700;font-size:18px;border:2px solid var(--navy);
}
.logo-name{font-family:'Space Grotesk';font-weight:700;color:var(--navy);font-size:18px;line-height:1}
.logo-tag{font-size:10px;letter-spacing:.25em;color:var(--graphite);text-transform:uppercase;margin-top:4px}

.nav-desktop{display:none;align-items:center;gap:4px}
@media(min-width:860px){.nav-desktop{display:flex}}
.nav-desktop a{padding:8px 16px;border-radius:6px;font-size:14px;font-weight:500;color:var(--graphite);transition:.2s}
.nav-desktop a:hover{color:var(--navy);background:#eef0f6}
.nav-desktop a.active{color:var(--navy);background:#eef0f6}
.btn-cta{
  margin-left:12px;background:var(--navy);color:#fff;
  padding:10px 20px;border-radius:6px;font-size:14px;font-weight:600;transition:.2s;
}
.btn-cta:hover{background:var(--navy-deep)}

.nav-toggle{display:block;padding:8px;color:var(--navy)}
@media(min-width:860px){.nav-toggle{display:none}}
.nav-mobile{display:none;border-top:1px solid var(--border);background:#fff}
.nav-mobile.open{display:block}
.nav-mobile a{display:block;padding:14px 0;border-bottom:1px solid var(--border);color:var(--graphite);font-weight:500}
.nav-mobile a:last-child{border-bottom:0}

/* ============ BUTTONS ============ */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:6px;font-weight:600;transition:.2s;font-size:15px}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--navy-deep)}
.btn-white{background:#fff;color:var(--navy)}
.btn-white:hover{background:#f0f0f0}
.btn-outline{border:1px solid rgba(255,255,255,.3);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.1)}

/* ============ SECTIONS / UTILITIES ============ */
.section{padding:80px 0}
@media(min-width:1024px){.section{padding:112px 0}}
.eyebrow{font-size:12px;letter-spacing:.25em;text-transform:uppercase;color:var(--graphite);margin-bottom:16px}
.eyebrow-light{color:rgba(255,255,255,.6)}
.section-title{font-size:30px;font-weight:700;color:var(--navy)}
@media(min-width:1024px){.section-title{font-size:38px}}
.bg-muted{background:#f6f7fb;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.bg-navy{background:var(--navy);color:#fff}
.bg-navy h1,.bg-navy h2,.bg-navy h3{color:#fff}
.bg-navy-deep{background:var(--navy-deep);color:#fff}
.bg-navy-deep h1,.bg-navy-deep h2,.bg-navy-deep h3{color:#fff}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;background:var(--navy-deep);color:#fff;padding:96px 0}
@media(min-width:1024px){.hero{padding:144px 0}}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.25}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,var(--navy-deep) 0%,rgba(18,24,51,.95) 50%,rgba(27,36,71,.7) 100%)}
.hero-inner{position:relative;z-index:1;max-width:780px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.25em;text-transform:uppercase;color:rgba(255,255,255,.7);border:1px solid rgba(255,255,255,.2);border-radius:999px;padding:6px 18px;margin-bottom:32px}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.8)}
.hero h1{color:#fff;font-size:36px;font-weight:700;line-height:1.05;margin-bottom:28px}
@media(min-width:640px){.hero h1{font-size:48px}}
@media(min-width:1024px){.hero h1{font-size:60px}}
.hero p.lead{font-size:18px;color:rgba(255,255,255,.8);max-width:640px;margin-bottom:40px}
@media(min-width:1024px){.hero p.lead{font-size:20px}}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ INTRO ============ */
.intro{padding:80px 0;text-align:center}
@media(min-width:1024px){.intro{padding:112px 0}}
.intro-inner{max-width:760px;margin:0 auto}
.intro p{font-size:20px;color:rgba(26,31,51,.85);line-height:1.55;font-weight:300}
@media(min-width:1024px){.intro p{font-size:22px}}
.intro strong{color:var(--navy);font-weight:600}

/* ============ GRID DE CARDS ============ */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:1fr}
.grid-4{grid-template-columns:1fr}
@media(min-width:640px){.grid-2,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.grid-4{grid-template-columns:repeat(4,1fr)}}

.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:28px;transition:.3s}
.card:hover{border-color:rgba(27,36,71,.4);box-shadow:0 10px 30px -10px rgba(0,0,0,.1);transform:translateY(-4px)}
.card-icon{width:48px;height:48px;border-radius:8px;background:rgba(27,36,71,.06);color:var(--navy);display:grid;place-items:center;margin-bottom:20px;transition:.2s}
.card:hover .card-icon{background:var(--navy);color:#fff}
.card h3{font-size:18px;font-weight:600;color:var(--navy);margin-bottom:10px}
.card p{font-size:14px;color:var(--graphite);line-height:1.6}

.section-head{max-width:640px;margin-bottom:56px}
.center{text-align:center}
.mt-12{margin-top:48px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--navy);font-weight:600;transition:gap .2s}
.link-arrow:hover{gap:12px}

/* ============ CTA FAIXA ============ */
.cta-band{padding:80px 0;background:var(--navy);color:#fff}
.cta-band-inner{display:flex;flex-direction:column;gap:24px;align-items:flex-start;justify-content:space-between}
@media(min-width:1024px){.cta-band-inner{flex-direction:row;align-items:center}}
.cta-band h2{color:#fff;font-size:28px;font-weight:700;line-height:1.2}
@media(min-width:1024px){.cta-band h2{font-size:34px}}
.cta-band p{color:rgba(255,255,255,.75);font-size:18px;margin-top:10px}

/* ============ PAGE HEADER (subpáginas) ============ */
.page-header{padding:80px 0;background:var(--navy-deep);color:#fff}
@media(min-width:1024px){.page-header{padding:112px 0}}
.page-header h1{color:#fff;font-size:36px;font-weight:700;max-width:820px;line-height:1.15}
@media(min-width:1024px){.page-header h1{font-size:48px}}
.page-header p.lead{margin-top:20px;font-size:18px;color:rgba(255,255,255,.75);max-width:640px}

/* ============ QUEM SOMOS ============ */
.about-grid{display:grid;gap:56px;align-items:center;grid-template-columns:1fr}
@media(min-width:1024px){.about-grid{grid-template-columns:1fr 1fr}}
.about-text p{margin-bottom:20px;color:var(--graphite);line-height:1.7}
.about-text strong{color:var(--navy)}
.about-img{position:relative}
.about-img::before{content:"";position:absolute;inset:-12px;border:2px solid rgba(27,36,71,.15);border-radius:18px}
.about-img img{position:relative;border-radius:14px;width:100%;height:auto;object-fit:cover}

.pilar{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:28px;display:flex;gap:20px}
.pilar-icon{width:48px;height:48px;flex-shrink:0;border-radius:8px;background:var(--navy);color:#fff;display:grid;place-items:center}
.pilar h3{font-size:18px;font-weight:600;color:var(--navy);margin-bottom:8px}
.pilar p{font-size:14px;color:var(--graphite);line-height:1.6}

/* ============ SERVIÇOS ============ */
.servico{
  background:var(--card);border:1px solid var(--border);border-radius:16px;
  padding:32px;display:grid;gap:32px;grid-template-columns:1fr;transition:.2s;margin-bottom:28px;
}
@media(min-width:1024px){.servico{grid-template-columns:auto 1fr;padding:48px;gap:48px}}
.servico:hover{border-color:rgba(27,36,71,.3)}
.servico-side{display:flex;flex-direction:row;align-items:center;gap:20px}
@media(min-width:1024px){.servico-side{flex-direction:column;align-items:flex-start}}
.servico-icon{width:64px;height:64px;border-radius:12px;background:var(--navy);color:#fff;display:grid;place-items:center}
.servico-num{font-family:'Space Grotesk';font-size:36px;font-weight:700;color:rgba(27,36,71,.15)}
.servico h2{font-size:24px;font-weight:700;color:var(--navy);margin-bottom:16px;line-height:1.2}
@media(min-width:1024px){.servico h2{font-size:28px}}
.servico-desc{color:var(--graphite);line-height:1.7;margin-bottom:24px}
.servico-items{background:#f6f7fb;border:1px solid var(--border);border-radius:12px;padding:24px}
.items-title{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--graphite);font-weight:600;margin-bottom:14px}
.items-list{display:grid;gap:10px;grid-template-columns:1fr}
@media(min-width:640px){.items-list{grid-template-columns:1fr 1fr}}
.items-list li{display:flex;gap:10px;font-size:14px;color:rgba(26,31,51,.85)}
.items-list li::before{content:"✓";color:var(--navy);font-weight:700;flex-shrink:0}
.servico-extra{margin-top:16px;font-size:14px;color:var(--graphite);font-style:italic}

/* ============ CONTATO ============ */
.contact-grid{display:grid;gap:48px;grid-template-columns:1fr}
@media(min-width:1024px){.contact-grid{grid-template-columns:1.4fr 1fr}}
.form-box{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px}
@media(min-width:1024px){.form-box{padding:40px}}
.form-box h2{font-size:22px;font-weight:700;color:var(--navy);margin-bottom:8px}
.form-box .hint{font-size:14px;color:var(--graphite);margin-bottom:28px}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--navy);margin-bottom:8px}
.field input,.field textarea{
  width:100%;border:1px solid var(--border);background:#fff;border-radius:6px;
  padding:12px 16px;font:inherit;font-size:14px;color:var(--fg);transition:.15s;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(27,36,71,.15)}
.field textarea{resize:none}
.field .err{margin-top:6px;font-size:12px;color:var(--destructive)}
.row-2{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:640px){.row-2{grid-template-columns:1fr 1fr}}
.alert{margin-bottom:24px;border:1px solid rgba(27,36,71,.2);background:rgba(27,36,71,.05);color:var(--navy);padding:12px 16px;border-radius:8px;font-size:14px}
.hidden{display:none}

.info-card{
  background:var(--card);border:1px solid var(--border);border-radius:12px;
  padding:24px;display:flex;gap:16px;transition:.2s;margin-bottom:20px;
}
.info-card:hover{border-color:rgba(27,36,71,.4)}
.info-icon{width:44px;height:44px;flex-shrink:0;border-radius:8px;background:rgba(27,36,71,.06);color:var(--navy);display:grid;place-items:center}
.info-title{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--graphite);font-weight:600;margin-bottom:6px}
.info-value{font-size:14px;color:rgba(26,31,51,.9);line-height:1.55}
.info-cta{margin-top:8px;font-size:14px;font-weight:600;color:var(--navy)}

/* ============ FOOTER ============ */
.site-footer{background:var(--navy-deep);color:rgba(255,255,255,.9)}
.footer-top{display:grid;gap:40px;padding:56px 0;grid-template-columns:1fr}
@media(min-width:768px){.footer-top{grid-template-columns:repeat(3,1fr)}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{background:transparent;border:2px solid rgba(255,255,255,.8)}
.footer-brand .logo-name{color:#fff}
.footer-brand .logo-tag{color:rgba(255,255,255,.6)}
.site-footer p{font-size:14px;color:rgba(255,255,255,.7);max-width:280px;line-height:1.6}
.footer-col h4{font-size:14px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:rgba(255,255,255,.8);margin-bottom:16px}
.footer-col ul li{margin-bottom:8px;font-size:14px;color:rgba(255,255,255,.7)}
.footer-col ul li a{transition:.2s}
.footer-col ul li a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1)}
.footer-bottom-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:20px 0;font-size:12px;color:rgba(255,255,255,.5)}