/* LUVA ENGENHARIA E ARQUITETURA — folha de estilo do rascunho v2
   Identidade: troque cores e fontes apenas nas variáveis abaixo. */
@font-face{font-family:"Jost";font-style:normal;font-weight:300 600;font-display:swap;src:url(/fonts/jost-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
:root{
  /* Paleta (marca LUVA EA) */
  --c-preto:#000000;
  --c-grafite:#111111;
  --c-cinza-escuro:#404040;
  --c-cinza:#666666;
  --c-fundo:#F2F2F2;
  --c-branco:#FFFFFF;
  --c-destaque:#FF7F00;      /* laranja do logo: usar só em detalhes, links ativos e CTA */
  --c-linha:#DADADA;
  /* Papéis */
  --bg:var(--c-branco); --bg-alt:var(--c-fundo); --texto:var(--c-grafite); --texto-suave:var(--c-cinza); --escuro:var(--c-grafite);
  /* Tipografia */
  --font-sans:"Jost",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-titulos:var(--font-sans);
  --peso-leve:300; --peso-normal:400; --peso-medio:500;
  --tracking:.14em;
  /* Medidas */
  --max:1320px; --gutter:clamp(20px,4vw,56px); --sec:clamp(72px,10vw,152px); --raio:0px;
  --header-h:84px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font-sans);font-weight:var(--peso-normal);font-size:17px;line-height:1.6;color:var(--texto);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--c-destaque);outline-offset:3px}
h1,h2,h3{font-family:var(--font-titulos);font-weight:var(--peso-leve);line-height:1.12;margin:0;letter-spacing:-.01em}
h1{font-size:clamp(34px,5vw,64px)}
h2{font-size:clamp(26px,3vw,40px)}
h3{font-size:19px;font-weight:var(--peso-normal)}
p{margin:0}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-9999px;top:0;background:var(--c-preto);color:#fff;padding:10px 16px;z-index:200}.skip:focus{left:12px;top:12px}
.eyebrow{font-size:12px;letter-spacing:var(--tracking);text-transform:uppercase;color:var(--texto-suave);font-weight:var(--peso-medio)}
.muted{color:var(--texto-suave)}

/* Cabeçalho */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.2) blur(6px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-header.is-scrolled{border-bottom-color:var(--c-linha)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.brand img{height:64px;width:auto}
.nav{display:flex;gap:clamp(18px,3vw,40px);align-items:center}
.nav a{font-size:13px;letter-spacing:var(--tracking);text-transform:uppercase;color:var(--c-cinza-escuro);padding:6px 0;border-bottom:1px solid transparent}
.nav a:hover{color:var(--c-preto)}
.nav a[aria-current="page"]{color:var(--c-preto);border-bottom-color:var(--c-destaque)}
.nav-toggle{display:none;background:none;border:0;padding:10px;margin-right:-10px;cursor:pointer}
.nav-toggle span{display:block;width:24px;height:1px;background:var(--c-preto);margin:6px 0;transition:transform .2s,opacity .2s}
@media (max-width:820px){
  :root{--header-h:68px}
  .brand img{height:50px}
  .nav-toggle{display:block}
  .nav{position:fixed;inset:var(--header-h) 0 0 0;background:var(--bg);flex-direction:column;align-items:flex-start;padding:40px var(--gutter);gap:22px;transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .2s,transform .2s,visibility .2s}
  .nav a{font-size:22px;letter-spacing:.04em;text-transform:none;font-weight:var(--peso-leve)}
  body.nav-open .nav{opacity:1;visibility:visible;transform:none}
  body.nav-open .nav-toggle span:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
  body.nav-open .nav-toggle span:nth-child(2){transform:translateY(-3.5px) rotate(-45deg)}
}

/* Capa */
.hero{position:relative;height:calc(100svh - var(--header-h));min-height:520px;max-height:980px;overflow:hidden;background:var(--c-grafite)}
.hero picture,.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:var(--hero-pos,50% 50%)}
@media (max-width:700px){.hero{--hero-pos:30% 50%}.hero .wrap{padding-bottom:96px}}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 45%,rgba(0,0,0,.55) 100%)}
.hero .wrap{position:relative;z-index:1;height:100%;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:clamp(36px,6vw,72px);color:#fff}
.hero h1{font-size:clamp(30px,4.4vw,58px);max-width:16ch}
.hero p{margin-top:14px;font-size:clamp(15px,1.4vw,18px);color:rgba(255,255,255,.86);letter-spacing:.02em}
.hero .credit{position:absolute;right:var(--gutter);top:18px;z-index:1;font-size:11px;letter-spacing:.08em;color:rgba(255,255,255,.7)}
.hero .credit a{border-bottom:1px solid rgba(255,255,255,.4)}

/* Seções */
.section{padding:var(--sec) 0}
.section.alt{background:var(--bg-alt)}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:clamp(32px,5vw,64px)}
.link-arrow{font-size:13px;letter-spacing:var(--tracking);text-transform:uppercase;color:var(--c-cinza-escuro);white-space:nowrap}
.link-arrow::after{content:" →"}
.link-arrow:hover{color:var(--c-preto)}

/* Grade de projetos */
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(16px,2.4vw,36px)}
.card{grid-column:span 6;display:block}
.card.wide{grid-column:span 12}
.card.third{grid-column:span 4}
.card .ph{overflow:hidden;background:var(--bg-alt);aspect-ratio:3/2}
.card.wide .ph{aspect-ratio:21/9}
.card img{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.2,.6,.2,1)}
.card:hover img{transform:scale(1.025)}
.card .cap{display:flex;justify-content:space-between;gap:16px;padding-top:14px;font-size:15px}
.card .cap span{color:var(--texto-suave)}
@media (max-width:820px){.card,.card.third{grid-column:span 12}.card.wide .ph{aspect-ratio:3/2}}
.filters{display:flex;flex-wrap:wrap;gap:8px 24px;margin-bottom:40px}
.filters button{background:none;border:0;border-bottom:1px solid transparent;padding:4px 0;font:inherit;font-size:13px;letter-spacing:var(--tracking);text-transform:uppercase;color:var(--texto-suave);cursor:pointer}
.filters button[aria-pressed="true"]{color:var(--c-preto);border-bottom-color:var(--c-destaque)}
.card[hidden]{display:none}

/* Lista de serviços */
.services{list-style:none;margin:0;padding:0;border-top:1px solid var(--c-linha)}
.services li{border-bottom:1px solid var(--c-linha)}
.services a{display:grid;grid-template-columns:56px 1fr auto;gap:16px;align-items:baseline;padding:24px 0;transition:padding .25s}
.services a:hover{padding-left:8px}
.services .n{font-size:13px;color:var(--texto-suave);letter-spacing:.08em}
.services .t{font-size:clamp(19px,2vw,26px);font-weight:var(--peso-leve)}
.services .d{font-size:14px;color:var(--texto-suave);text-align:right}
@media (max-width:820px){.services a{grid-template-columns:40px 1fr}.services .d{display:none}}

/* Página interna */
.page-head{padding-top:clamp(48px,8vw,120px);padding-bottom:clamp(32px,5vw,64px)}
.page-head .eyebrow{margin-bottom:18px;display:block}
.page-head .lede{margin-top:20px;max-width:52ch;font-size:clamp(17px,1.5vw,20px);color:var(--c-cinza-escuro);font-weight:var(--peso-leve)}
.crumbs{font-size:12px;letter-spacing:.08em;color:var(--texto-suave);margin-bottom:28px}
.crumbs a:hover{color:var(--c-preto)}
.crumbs span[aria-hidden]{margin:0 8px}
.facts{display:flex;flex-wrap:wrap;gap:12px 48px;margin-top:32px;padding-top:24px;border-top:1px solid var(--c-linha);font-size:14px}
.facts dt{color:var(--texto-suave);font-size:12px;letter-spacing:var(--tracking);text-transform:uppercase}
.facts dd{margin:4px 0 0}
.note{font-size:13px;color:var(--texto-suave);margin-top:18px}

/* Galeria do projeto */
.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(12px,1.6vw,24px)}
.gallery a{display:block;overflow:hidden;background:var(--bg-alt);cursor:zoom-in}
.gallery a:first-child{grid-column:1/-1}
.gallery img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/2}
.gallery a:first-child img{aspect-ratio:auto}
.gallery a:nth-child(even):last-child{grid-column:1/-1}
.gallery a:nth-child(even):last-child img{aspect-ratio:auto}
@media (max-width:640px){.gallery{grid-template-columns:1fr}}

/* Blocos de texto curtos */
.cols{display:grid;grid-template-columns:4fr 8fr;gap:clamp(24px,5vw,80px)}
@media (max-width:820px){.cols{grid-template-columns:1fr}}
.list{list-style:none;margin:0;padding:0}
.list li{padding:14px 0;border-bottom:1px solid var(--c-linha)}
.list li:first-child{border-top:1px solid var(--c-linha)}
.faq details{border-bottom:1px solid var(--c-linha)}
.faq details:first-child{border-top:1px solid var(--c-linha)}
.faq summary{list-style:none;cursor:pointer;padding:20px 32px 20px 0;position:relative;font-size:18px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:18px;font-weight:var(--peso-leve);font-size:22px;color:var(--texto-suave)}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 22px;color:var(--c-cinza-escuro);max-width:68ch}
.related{display:flex;flex-wrap:wrap;gap:8px 28px;font-size:14px}
.related a{border-bottom:1px solid var(--c-linha);padding-bottom:2px}
.related a:hover{border-bottom-color:var(--c-destaque)}

/* CTA sóbrio */
.cta{padding:clamp(56px,8vw,112px) 0;border-top:1px solid var(--c-linha)}
.cta .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta h2{font-size:clamp(24px,2.6vw,34px)}
.btn{display:inline-flex;align-items:center;gap:12px;padding:16px 26px;border:1px solid var(--c-preto);font-size:13px;letter-spacing:var(--tracking);text-transform:uppercase;transition:background .2s,color .2s}
.btn:hover{background:var(--c-preto);color:#fff}
.btn::after{content:"";width:6px;height:6px;background:var(--c-destaque);border-radius:50%}

/* Sobre / Contato */
.contact-list{list-style:none;margin:0;padding:0}
.contact-list li{display:grid;grid-template-columns:140px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--c-linha)}
.contact-list li:first-child{border-top:1px solid var(--c-linha)}
.contact-list span{color:var(--texto-suave);font-size:12px;letter-spacing:var(--tracking);text-transform:uppercase;padding-top:4px}
.contact-list a:hover{color:var(--c-destaque)}
@media (max-width:540px){.contact-list li{grid-template-columns:1fr;gap:2px}}

/* Navegação entre projetos */
.pager{display:flex;justify-content:space-between;gap:24px;padding:32px 0;border-top:1px solid var(--c-linha);font-size:14px}
.pager a{color:var(--c-cinza-escuro)}.pager a:hover{color:var(--c-preto)}
.pager small{display:block;font-size:11px;letter-spacing:var(--tracking);text-transform:uppercase;color:var(--texto-suave)}
.pager .next{text-align:right}

/* Rodapé */
.site-footer{background:var(--escuro);color:#bdbdbd;font-size:14px;padding:72px 0 40px}
.site-footer a:hover{color:#fff}
.foot-grid{display:grid;grid-template-columns:auto 1fr 1fr 1fr;gap:48px}
.foot-grid img{height:96px;width:auto}
.foot-grid h3{font-size:11px;letter-spacing:var(--tracking);text-transform:uppercase;color:#8a8a8a;margin-bottom:14px;font-weight:var(--peso-medio)}
.foot-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.legal{margin-top:56px;padding-top:24px;border-top:1px solid #2a2a2a;font-size:12.5px;color:#8a8a8a;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
@media (max-width:900px){.foot-grid{grid-template-columns:1fr 1fr}.foot-grid>div:first-child{grid-column:1/-1}}
@media (max-width:540px){.foot-grid{grid-template-columns:1fr}}

/* Botão flutuante de WhatsApp (discreto) */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:60;width:52px;height:52px;border-radius:50%;background:var(--c-grafite);display:grid;place-items:center;box-shadow:0 6px 18px rgba(0,0,0,.18);transition:transform .2s}
.wa-float:hover{transform:translateY(-2px)}
.wa-float svg{width:24px;height:24px;fill:#fff}

/* Lightbox */
.lb{position:fixed;inset:0;z-index:100;background:rgba(10,10,10,.96);display:none;align-items:center;justify-content:center}
.lb.open{display:flex}
.lb img{max-width:94vw;max-height:86vh;width:auto;height:auto;object-fit:contain}
.lb button{position:absolute;background:none;border:0;color:#fff;cursor:pointer;font:300 30px/1 var(--font-sans);padding:16px;opacity:.75}
.lb button:hover{opacity:1}
.lb .lb-close{top:10px;right:14px}
.lb .lb-prev{left:8px;top:50%;transform:translateY(-50%)}
.lb .lb-next{right:8px;top:50%;transform:translateY(-50%)}
.lb .lb-count{position:absolute;bottom:18px;left:0;right:0;text-align:center;color:#aaa;font-size:12px;letter-spacing:.12em}
body.lb-open{overflow:hidden}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
/* Aviso de cookies (LGPD): discreto, não bloqueia a página */
.cc{position:fixed;left:20px;bottom:20px;z-index:70;max-width:440px;background:#111;color:#F2F2F2;padding:16px 18px;font-size:13px;line-height:1.5;box-shadow:0 6px 18px rgba(0,0,0,.18)}
.cc p{margin:0 0 12px}
.cc a{color:#fff;border-bottom:1px solid #666}
.cc-b{display:flex;gap:10px;justify-content:flex-end}
.cc-b button{font:inherit;font-size:12px;letter-spacing:var(--tracking);text-transform:uppercase;padding:9px 16px;border:1px solid #666;background:transparent;color:#fff;cursor:pointer}
.cc-b button[data-v="granted"]{background:#fff;color:#111;border-color:#fff}
.cc-b button:focus-visible,.cc-open:focus-visible{outline:2px solid var(--c-destaque);outline-offset:2px}
.legal .cc-open{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.legal a{text-decoration:underline;text-underline-offset:2px}
.prose h2{font-size:18px;font-weight:500;margin:40px 0 10px}
.prose p{max-width:72ch;color:var(--c-cinza-escuro)}
.prose a,.prose .cc-open{border-bottom:1px solid;font:inherit;background:none;border-top:0;border-left:0;border-right:0;padding:0;cursor:pointer;color:inherit}
@media (max-width:700px){.cc{left:12px;right:12px;bottom:12px;max-width:none}body.cc-on .wa-float{bottom:150px}}

/* ---------- Blog ---------- */
.post-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:40px 28px}
.post-card a{display:block;color:inherit;text-decoration:none}
.post-card .ph{aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt)}
.post-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.post-card a:hover img{transform:scale(1.03)}
.post-card .cap{padding-top:16px}
.post-card h2{font-size:21px;line-height:1.3;margin:8px 0 10px}
.post-card a:hover h2{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.post-card p{color:var(--texto-suave);font-size:15px;margin:0}
.post-meta{font-size:13px;letter-spacing:.04em;color:var(--texto-suave)}
.page-head .post-meta{margin-top:18px}
.badge{display:inline-block;margin-left:8px;padding:2px 8px;border:1px solid var(--c-cinza-escuro);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--c-cinza-escuro);vertical-align:middle}
.draft-bar{margin:0 0 24px;padding:10px 14px;background:var(--bg-alt);border-left:3px solid var(--c-cinza-escuro);font-size:14px}
.post-fig{margin:0 0 48px}
.post-fig img{width:100%;height:auto;max-height:640px;object-fit:cover}
.post-fig figcaption{font-size:13px;color:var(--texto-suave);margin-top:8px}
.post-body{display:grid;grid-template-columns:240px minmax(0,720px);gap:56px;padding-bottom:var(--sec,96px)}
.post-body .prose{grid-column:2}
.toc{position:sticky;top:calc(var(--header-h,80px) + 24px);align-self:start;border-top:1px solid var(--c-linha);padding-top:14px}
.toc h2{font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin:0 0 10px}
.toc ol{margin:0;padding-left:18px;font-size:14px;line-height:1.5}
.toc li{margin:6px 0}
.toc a{color:var(--texto-suave);text-decoration:none}
.toc a:hover{color:var(--texto)}
.prose{font-size:17px;line-height:1.7}
.prose h2{scroll-margin-top:calc(var(--header-h,80px) + 16px)}
.prose h3{font-size:19px;margin:28px 0 8px}
.prose ul,.prose ol{padding-left:22px;margin:0 0 20px}
.prose li{margin:6px 0}
.prose .table{overflow-x:auto;margin:8px 0 28px}
.prose table{border-collapse:collapse;width:100%;font-size:15px;line-height:1.45}
.prose th,.prose td{text-align:left;vertical-align:top;padding:10px 12px;border-bottom:1px solid var(--c-linha)}
.prose thead th{border-bottom:2px solid var(--texto);font-weight:500}
.prose tbody th{font-weight:500}
.cta-rel{margin:6px 0 0;font-size:15px;opacity:.85}
.cta-rel a{color:inherit;text-decoration:underline;text-underline-offset:3px}
.posts-mini{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.posts-mini a{display:block;font-size:18px;color:inherit;text-decoration:none;margin-bottom:6px}
.posts-mini a:hover{text-decoration:underline;text-underline-offset:4px}
.posts-mini span{font-size:13px;color:var(--texto-suave)}
@media (max-width:980px){.post-body{grid-template-columns:1fr;gap:24px}.post-body .prose{grid-column:1}.toc{position:static}}
@media (max-width:820px){.post-grid,.posts-mini{grid-template-columns:1fr}}
.post .prose h2{font-size:clamp(22px,2vw,26px);margin:48px 0 14px}
.post .prose p{max-width:none;color:var(--texto)}
.post .prose p{margin:0 0 18px}