/* Cerqueira Avance Engenharia — site 2026 */
:root{
  --ink:#0e1b16; --ink-2:#1b2b25; --text:#2c3532; --muted:#5d6763;
  --green:#3d8a5f; --green-d:#2d6b48; --brand:#5b9e79; --green-50:#eef6f1; --green-100:#d9ecdf;
  --line:#e3e8e5; --bg:#ffffff; --bg-alt:#f5f7f6; --gold:#f2b544;
  --r:14px; --r-lg:22px; --shadow:0 10px 30px -12px rgba(14,27,22,.25);
  --wrap:1180px; --pad:clamp(16px,4vw,32px);
  --f:"Manrope",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--f);color:var(--text);background:var(--bg);line-height:1.65;font-size:17px;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
svg{width:1.1em;height:1.1em;flex:none}
.topbar svg{width:14px;height:14px;vertical-align:-2px}
a{color:var(--green-d)}
h1,h2,h3,h4{color:var(--ink);line-height:1.15;margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:800}
h2{font-size:clamp(1.6rem,3.4vw,2.5rem);font-weight:800}
h3{font-size:1.2rem;font-weight:700}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}
.section{padding:clamp(56px,8vw,104px) 0}
.section.alt{background:var(--bg-alt)}
.section.dark{background:var(--ink);color:#c9d4cf}
.section.dark h2,.section.dark h3{color:#fff}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--green);margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor}
.dark .eyebrow{color:#7fc79d}
.lead{font-size:1.15rem;color:var(--muted);max-width:720px}
.dark .lead{color:#b5c3bd}
.head{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.head > div{max-width:720px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:#fff;padding:8px 12px}

/* botões */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 22px;border-radius:999px;font-weight:800;font-size:.98rem;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:.2s;font-family:inherit;line-height:1.2}
.btn svg{width:20px;height:20px;flex:none}
.btn-wa{background:#1fa855;color:#fff}.btn-wa:hover{background:#178a45}
.btn-primary{background:var(--green);color:#fff}.btn-primary:hover{background:var(--green-d)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-line{border-color:var(--line);color:var(--ink);background:#fff}.btn-line:hover{border-color:var(--green);color:var(--green-d)}
.link-arrow{font-weight:800;text-decoration:none;color:var(--green-d);display:inline-flex;gap:6px;align-items:center}
.link-arrow:hover{gap:10px}

/* topo */
.topbar{background:var(--ink);color:#b8c6c0;font-size:.85rem}
.topbar .wrap{display:flex;justify-content:space-between;gap:16px;padding-top:8px;padding-bottom:8px;flex-wrap:wrap}
.topbar a{color:#fff;text-decoration:none}
.topbar span{display:inline-flex;gap:6px;align-items:center}
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.logo img{height:46px;width:auto}
.nav{display:flex;gap:4px;align-items:center}
.nav a{padding:10px 14px;border-radius:10px;text-decoration:none;color:var(--ink);font-weight:700;font-size:.95rem}
.nav a:hover,.nav a[aria-current=page]{background:var(--green-50);color:var(--green-d)}
.nav .btn{margin-left:8px;padding:11px 18px;color:#fff}
.nav .btn:hover{background:#178a45;color:#fff}
.menu-btn{display:none;background:none;border:0;padding:10px;cursor:pointer}
.menu-btn span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}
@media (max-width:960px){
  .menu-btn{display:block}
  .nav{position:fixed;inset:76px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;padding:12px var(--pad) 24px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none}
  .nav.open{display:flex}
  .nav a{padding:14px}
  .nav .btn{margin:8px 0 0}
  .topbar .hide-sm{display:none}
}

/* hero */
.hero{position:relative;color:#fff;background:var(--ink);overflow:hidden}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center 30%}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(9,20,16,.94) 0%,rgba(9,20,16,.78) 45%,rgba(9,20,16,.25) 100%)}
.hero .wrap{position:relative;padding-top:clamp(72px,11vw,140px);padding-bottom:clamp(64px,9vw,120px)}
.hero h1{color:#fff;max-width:800px}
.hero h1 em{font-style:normal;color:#8fd3ab}
.hero p.lead{color:#d3ded9;font-size:clamp(1.05rem,1.6vw,1.25rem)}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 36px}
.chips{display:flex;flex-wrap:wrap;gap:10px;padding:0;margin:0;list-style:none}
.chips li{display:inline-flex;gap:8px;align-items:center;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);padding:8px 14px;border-radius:999px;font-size:.88rem;font-weight:700}
.chips svg{width:16px;height:16px;color:#8fd3ab}

/* page hero */
.phero{background:var(--ink);color:#c9d4cf;padding:clamp(48px,7vw,88px) 0 clamp(40px,6vw,72px);position:relative;overflow:hidden}
.phero.has-img::before{content:"";position:absolute;inset:0;background:var(--img) center/cover;opacity:.22}
.phero .wrap{position:relative}
.phero h1{color:#fff;max-width:880px;font-size:clamp(1.9rem,4.4vw,3rem)}
.phero .lead{color:#c3d0ca}
.crumbs{font-size:.86rem;margin-bottom:18px;color:#9fb1aa}
.crumbs a{color:#cfe0d7;text-decoration:none}.crumbs a:hover{text-decoration:underline}
.crumbs span{margin:0 6px;opacity:.6}

/* números */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;margin-top:-48px;position:relative;z-index:2;box-shadow:var(--shadow)}
.stats div{background:#fff;padding:26px 22px}
.stats b{display:block;font-size:clamp(1.7rem,3vw,2.3rem);color:var(--ink);font-weight:800;line-height:1.1}
.stats span{color:var(--muted);font-size:.92rem;font-weight:600}
@media (max-width:760px){.stats{grid-template-columns:1fr 1fr}}

/* grids e cards */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:960px){.g3,.g4{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:inherit;transition:.25s}
a.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--green-100)}
.card .ph{aspect-ratio:4/3;overflow:hidden;background:var(--bg-alt);position:relative}
.card .ph img{width:100%;height:100%;object-fit:cover;transition:.5s}
@media (max-width:640px){.card .ph{aspect-ratio:16/10}}
a.card:hover .ph img{transform:scale(1.05)}
.card .bd{padding:22px;display:flex;flex-direction:column;gap:8px;flex:1}
.card .bd p{color:var(--muted);font-size:.96rem;margin:0}
.card .bd .link-arrow{margin-top:auto;padding-top:8px}
.badge{position:absolute;left:12px;top:12px;background:rgba(14,27,22,.82);color:#fff;font-size:.74rem;font-weight:800;padding:6px 10px;border-radius:999px;letter-spacing:.04em}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 0;padding:0;list-style:none}
.tags li{font-size:.76rem;font-weight:700;background:var(--green-50);color:var(--green-d);padding:4px 10px;border-radius:999px}

/* split */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(28px,5vw,64px);align-items:center}
.split.rev > :first-child{order:2}
@media (max-width:900px){.split{grid-template-columns:1fr}.split.rev > :first-child{order:0}}
.photo-stack{position:relative}
.photo-stack img{border-radius:var(--r-lg);box-shadow:var(--shadow);width:100%;aspect-ratio:4/5;object-fit:cover}
.photo-stack .float{position:absolute;right:-12px;bottom:28px;background:#fff;border-radius:var(--r);padding:16px 20px;box-shadow:var(--shadow);max-width:240px}
.photo-stack .float b{display:block;font-size:1.7rem;color:var(--green-d);line-height:1}
@media (max-width:640px){.photo-stack .float{right:12px}}
.checks{list-style:none;padding:0;margin:20px 0;display:grid;gap:12px}
.checks li{display:flex;gap:12px;align-items:flex-start}
.checks li::before{content:"";flex:none;width:22px;height:22px;border-radius:50%;margin-top:2px;background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/14px no-repeat}
.checks.two{grid-template-columns:1fr 1fr}
@media (max-width:640px){.checks.two{grid-template-columns:1fr}}

/* processo */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(5,1fr);gap:18px;list-style:none;padding:0;margin:0}
.steps li{counter-increment:s;background:var(--ink-2);border:1px solid rgba(255,255,255,.08);border-radius:var(--r-lg);padding:24px 20px;position:relative}
.steps li::before{content:counter(s,decimal-leading-zero);display:block;font-size:2rem;font-weight:800;color:#7fc79d;margin-bottom:10px}
.steps h3{font-size:1.05rem;color:#fff}
.steps p{font-size:.92rem;margin:0;color:#aebdb6}
@media (max-width:1000px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}

/* compromissos */
.feat{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px}
.feat .ic{width:48px;height:48px;border-radius:14px;background:var(--green-50);color:var(--green-d);display:grid;place-items:center;margin-bottom:16px}
.feat .ic svg{width:24px;height:24px}
.feat p{color:var(--muted);font-size:.96rem;margin:0}

/* antes e depois */
.ba{position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/3;background:#ddd;user-select:none;box-shadow:var(--shadow);touch-action:pan-y}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none}
.ba .after{clip-path:inset(0 0 0 var(--x,50%))}
.ba .bar{position:absolute;top:0;bottom:0;left:var(--x,50%);width:3px;background:#fff;transform:translateX(-50%)}
.ba .bar::after{content:"⟷";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:46px;height:46px;border-radius:50%;background:#fff;color:var(--ink);display:grid;place-items:center;font-weight:800;box-shadow:0 4px 14px rgba(0,0,0,.3)}
.ba .lb{position:absolute;top:14px;background:rgba(14,27,22,.8);color:#fff;font-size:.75rem;font-weight:800;padding:6px 10px;border-radius:999px;letter-spacing:.08em}
.ba .lb.l{left:14px}.ba .lb.r{right:14px}
.ba input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0}
.ba-cap{font-size:.9rem;color:var(--muted);margin-top:10px}

/* galeria */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,42vw),1fr));gap:12px}
.obra-meta b,.prose,.card h3{overflow-wrap:anywhere}
.gallery button{all:unset;cursor:zoom-in;display:block;border-radius:var(--r);overflow:hidden;position:relative;aspect-ratio:1;background:var(--bg-alt)}
.gallery button:focus-visible{outline:3px solid var(--green)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:.4s}
.gallery button:hover img{transform:scale(1.05)}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:28px 12px 10px;background:linear-gradient(transparent,rgba(0,0,0,.75));color:#fff;font-size:.84rem;font-weight:700;line-height:1.3}
.lightbox{position:fixed;inset:0;background:rgba(6,12,10,.95);z-index:100;display:none;align-items:center;justify-content:center;flex-direction:column;padding:16px}
.lightbox.open{display:flex}
.lightbox img{max-height:80vh;max-width:min(1200px,100%);border-radius:10px;object-fit:contain}
.lightbox p{color:#fff;margin:14px 0 0;font-weight:700;text-align:center}
.lightbox small{color:#9fb1aa}
.lightbox button{position:absolute;background:rgba(255,255,255,.12);border:0;color:#fff;width:48px;height:48px;border-radius:50%;font-size:1.5rem;cursor:pointer}
.lightbox button:hover{background:rgba(255,255,255,.25)}
.lb-close{top:16px;right:16px}.lb-prev{left:16px;top:50%}.lb-next{right:16px;top:50%}

/* filtros */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.filters button{font-family:inherit;font-weight:700;font-size:.9rem;border:1px solid var(--line);background:#fff;color:var(--ink);padding:9px 16px;border-radius:999px;cursor:pointer}
.filters button[aria-pressed=true]{background:var(--ink);color:#fff;border-color:var(--ink)}
.card[hidden]{display:none}

/* obra */
.obra-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;margin:0 0 40px}
.obra-meta div{background:#fff;padding:18px 20px}
.obra-meta small{display:block;color:var(--muted);font-weight:700;font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}
.obra-meta b{color:var(--ink)}
@media (max-width:700px){.obra-meta{grid-template-columns:1fr}}

/* conteúdo serviço */
.prose{max-width:760px}
.prose h2{font-size:1.6rem;margin-top:1.6em}
.prose ul{padding-left:1.2em}.prose li{margin:.35em 0}
.aside{position:sticky;top:100px;background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px}
.aside h3{margin-bottom:6px}
.aside .btn{width:100%;margin-top:10px}
.layout-2{display:grid;grid-template-columns:1fr 340px;gap:48px;align-items:start}
@media (max-width:960px){.layout-2{grid-template-columns:1fr}.aside{position:static}}

/* faq */
.faq{max-width:860px}
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{list-style:none;cursor:pointer;font-weight:800;color:var(--ink);padding:16px 40px 16px 0;position:relative;font-size:1.05rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:10px;font-size:1.6rem;color:var(--green);transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--muted);margin:0 0 18px}

/* áreas */
.areas{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:18px 0 0}
.areas li{background:#fff;border:1px solid var(--line);padding:8px 14px;border-radius:999px;font-weight:700;font-size:.9rem}

/* cta */
.cta{background:linear-gradient(120deg,var(--green-d),var(--green));color:#e8f4ed;border-radius:var(--r-lg);padding:clamp(32px,5vw,56px);display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap}
.cta h2{color:#fff;margin-bottom:8px}
.cta p{margin:0;max-width:620px}
.cta .btn-line{border-color:#fff}

/* contato */
.form{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(22px,4vw,36px);box-shadow:var(--shadow)}
.form label{display:block;font-weight:700;font-size:.9rem;color:var(--ink);margin-bottom:6px}
.form input,.form select,.form textarea{width:100%;font:inherit;font-size:1rem;padding:13px 14px;border:1px solid #cfd8d4;border-radius:10px;background:#fff;color:var(--text)}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px var(--green-100)}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form .f{margin-bottom:16px}
@media (max-width:560px){.form .row{grid-template-columns:1fr}}
.form .note{font-size:.84rem;color:var(--muted);margin-top:10px}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.contact-list li{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}
.contact-list svg{width:22px;height:22px;color:var(--green);flex:none;margin-top:3px}
.contact-list small{display:block;color:var(--muted);font-weight:700;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}
.contact-list a{color:var(--ink);font-weight:800;text-decoration:none}

/* rodapé */
.footer{background:var(--ink);color:#9fb1aa;padding:64px 0 28px;font-size:.94rem}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
@media (max-width:900px){.footer .cols{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer .cols{grid-template-columns:1fr}}
.footer h4{color:#fff;font-size:.95rem;margin-bottom:14px}
.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.footer a{color:#cfe0d7;text-decoration:none}.footer a:hover{color:#fff}
.footer .logo-f{background:#fff;border-radius:12px;padding:10px 14px;display:inline-block;margin-bottom:14px}
.footer .logo-f img{height:40px;width:auto}
.footer .bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.85rem}
.social{display:flex;gap:10px;margin-top:14px}
.social a{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.08);display:grid;place-items:center}
.social svg{width:18px;height:18px}

/* whatsapp flutuante */
.wa-float{position:fixed;right:18px;bottom:18px;z-index:60;width:60px;height:60px;border-radius:50%;background:#1fa855;color:#fff;display:grid;place-items:center;box-shadow:0 10px 24px rgba(0,0,0,.25);transition:.2s}
.wa-float:hover{transform:scale(1.07)}
.wa-float svg{width:32px;height:32px}

/* animação suave */
.rv{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}
.mt0{margin-top:0}.center{text-align:center}.muted{color:var(--muted)}