/* Layout: cabeçalho azul-marinho fixo, hero com foto de obra, seções alternando claro/escuro, grade de projetos */
:root{
  --bg:#ffffff; --bg-2:#eef1f4; --ink:#1e2d3b; --muted:#5a6b7c; --line:#dce2e8;
  --navy:#1e2d3b; --navy-2:#24384b; --slate:#3d5975; --gold:#f6ab1b; --gold-ink:#9a5f00; --on-navy:#ffffff; --card:#ffffff;
  --elec:#e0a100; --water:#2f7fd1; --sewer:#8a6a4a; --ok:#2e8a57; --arch:#8d99a6;
  --f:"Nunito Sans","Avenir Next","Avenir","Segoe UI",system-ui,sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0e161e; --bg-2:#13202c; --ink:#e7edf3; --muted:#9db0c2; --line:#25384a;
  --navy:#0b141c; --navy-2:#13202c; --slate:#86a5c4; --gold:#f6ab1b; --gold-ink:#f6ab1b; --card:#16232f;
  --elec:#f2c230; --water:#5aa3ee; --sewer:#b8916a; --ok:#5cbf86; --arch:#6f7f8f; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0e161e; --bg-2:#13202c; --ink:#e7edf3; --muted:#9db0c2; --line:#25384a;
  --navy:#0b141c; --navy-2:#13202c; --slate:#86a5c4; --gold:#f6ab1b; --gold-ink:#f6ab1b; --card:#16232f;
  --elec:#f2c230; --water:#5aa3ee; --sewer:#b8916a; --ok:#5cbf86; --arch:#6f7f8f; color-scheme:dark}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f);font-size:16px;line-height:1.65}
img{max-width:100%;height:auto;display:block}
.about>*,.contact>*,.foot .in>*{min-width:0}
h1,h2,h3{font-weight:900;line-height:1.1;margin:0;text-wrap:balance}
p{margin:0}
a{color:inherit}
.gut{padding-left:max(18px,env(safe-area-inset-left,0px));padding-right:max(18px,env(safe-area-inset-right,0px))}
.in{max-width:1120px;margin:0 auto}
.eyebrow{color:var(--gold-ink);font-size:12.5px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
.label{font-size:11.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.lead{color:var(--muted);font-size:17.5px;font-weight:300;max-width:60ch}
.h2{font-size:clamp(28px,4.4vw,42px);text-transform:uppercase;letter-spacing:.01em}
.rule{width:56px;height:3px;background:var(--gold);margin-top:14px}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

/* Cabeçalho */
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:30;background:var(--navy)}
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--navy);color:var(--on-navy)}
.top .in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.brand img{height:50px;width:auto}
.nav{display:flex;gap:26px;font-size:12.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.nav a{text-decoration:none;opacity:.85}
.nav a:hover,.nav a[aria-current]{color:var(--gold);opacity:1}
.cta{background:var(--gold);color:#1e2d3b!important;text-decoration:none;font-weight:900;font-size:13px;letter-spacing:.08em;text-transform:uppercase;padding:10px 16px;border-radius:3px;white-space:nowrap}
.menu-btn{display:none;background:none;border:0;color:var(--on-navy);font:800 13px var(--f);letter-spacing:.1em;text-transform:uppercase;cursor:pointer;padding:8px 0}
@media (max-width:860px){
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--navy);flex-direction:column;gap:0;padding:6px max(18px,env(safe-area-inset-left,0px)) 14px}
  .nav.open{display:flex}
  .nav a{padding:12px 0;border-top:1px solid rgba(255,255,255,.1)}
  .menu-btn{display:block}
  .top .cta{display:none}
  .brand img{height:42px}
}

/* Hero */
.hero{position:relative;color:#fff;background:var(--navy);overflow:hidden}
.hero img.bg{position:absolute;inset:0;width:100%;height:100%!important;object-fit:cover;opacity:.55}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,22,30,.92) 0%,rgba(14,22,30,.55) 55%,rgba(14,22,30,.15) 100%)}
.hero .in{position:relative;z-index:1;padding-block:clamp(72px,12vw,140px);display:grid;gap:18px}
.hero .eyebrow{color:var(--gold)}
.hero h1{font-size:clamp(36px,6.4vw,68px);max-width:15ch;letter-spacing:-.01em}
.hero p{color:rgba(255,255,255,.82);font-size:18px;font-weight:300;max-width:52ch}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
.btn{display:inline-block;font:900 13.5px var(--f);letter-spacing:.08em;text-transform:uppercase;text-decoration:none;padding:13px 20px;border-radius:3px;border:1.5px solid currentColor;cursor:pointer;background:none;color:inherit}
.btn.gold{background:var(--gold);border-color:var(--gold);color:#1e2d3b}

/* Seções */
.sec{padding-block:clamp(56px,8vw,96px)}
.sec.alt{background:var(--bg-2)}
.sec .head{display:grid;gap:10px;margin-bottom:34px}
.about{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,64px);align-items:center}
.about img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:4px}
.about .txt{display:grid;gap:16px}
.facts{display:flex;flex-wrap:wrap;gap:28px;margin-top:6px}
.facts div{display:grid}
.facts b{font-size:15px;font-weight:900}
.facts span{font-size:13px;color:var(--muted)}
@media (max-width:760px){.about{grid-template-columns:1fr}}

.svcs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
@media (max-width:900px){.svcs{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.svcs{grid-template-columns:1fr}}
.svc{background:var(--card);border-radius:4px;overflow:hidden;display:grid;grid-template-rows:auto 1fr;box-shadow:0 1px 2px rgba(30,45,59,.07)}
.svc img{width:100%;aspect-ratio:16/10;object-fit:cover}
.svc .b{padding:18px 20px 22px;display:grid;gap:8px;align-content:start}
.svc h3{font-size:19px;font-weight:900}
.svc p{font-size:14.5px;color:var(--muted)}

.projs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:640px){.projs{grid-template-columns:1fr}}
.proj{position:relative;display:block;border-radius:4px;overflow:hidden;text-decoration:none;color:#fff;background:var(--navy)}
.proj img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .5s}
.proj:hover img{transform:scale(1.03)}
.proj .cap{position:absolute;left:0;right:0;bottom:0;padding:48px 20px 18px;background:linear-gradient(transparent,rgba(14,22,30,.88));display:grid;gap:2px}
.proj h3{font-size:21px}
.proj span{font-size:13.5px;opacity:.85}
.gal-h{margin:44px 0 16px}
.gal{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
@media (max-width:640px){.gal{grid-template-columns:repeat(2,minmax(0,1fr))}}
.gal figure{margin:0;border-radius:4px;overflow:hidden;background:var(--card)}
.gal img{width:100%;aspect-ratio:4/3;object-fit:cover}
.gal figcaption{font-size:12.5px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:9px 12px;color:var(--muted)}

/* Contato */
.contact{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(24px,5vw,64px)}
@media (max-width:760px){.contact{grid-template-columns:1fr}}
.cinfo{display:grid;gap:18px;align-content:start}
.cinfo div{display:grid;gap:2px}
.cinfo a{text-decoration:none;font-weight:700}
form{display:grid;grid-template-columns:1fr 1fr;gap:12px}
form .full{grid-column:1/-1}
@media (max-width:480px){form{grid-template-columns:1fr}}
label{display:grid;gap:5px;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
input,textarea,select{font:16px var(--f);color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:3px;padding:11px 12px;width:100%}
textarea{min-height:130px;resize:vertical}
.hp{position:absolute;left:-9999px}

/* Projeto (página) */
.phead{background:var(--navy);color:#fff}
.phead .in{padding-block:44px 36px;display:grid;gap:10px}
.phead a.back{color:var(--gold);text-decoration:none;font-weight:800;font-size:13px;letter-spacing:.1em;text-transform:uppercase}
.phead h1{font-size:clamp(32px,5.4vw,54px)}
.specs{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:0;border:1px solid var(--line);border-radius:4px;margin-bottom:28px}
.specs div{padding:14px 18px;display:grid;gap:2px;border-right:1px solid var(--line)}
.specs div:last-child{border-right:0}
.specs b{font-size:17px;font-weight:900}
.pics{display:grid;gap:14px}
.pics img{width:100%;border-radius:4px}
.pics figure{margin:0}
.pics figcaption{font-size:13px;color:var(--muted);margin-top:6px}

/* Rodapé */
.foot{background:var(--navy);color:rgba(255,255,255,.8);padding-block:40px 28px;font-size:14px}
.foot .in{display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:start}
.foot img{height:70px;width:auto}
.foot address{font-style:normal;display:grid;gap:3px}
.foot a{text-decoration:none}
.foot small{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.12);padding-top:16px;opacity:.6}
@media (max-width:760px){.foot .in{grid-template-columns:1fr}}
.wa{position:fixed;right:calc(16px + env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:25;background:#25d366;color:#fff;border-radius:999px;padding:12px 18px;font-weight:900;font-size:14px;text-decoration:none;box-shadow:0 4px 14px rgba(0,0,0,.25)}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* Modelo 3D */
.m3d{display:grid;grid-template-columns:1fr 2fr;gap:clamp(20px,4vw,48px);align-items:start}
@media (max-width:860px){.m3d{grid-template-columns:1fr}}
.m3d>*{min-width:0}
.m3d .txt{display:grid;gap:14px}
.specs3d{display:grid;grid-template-columns:1fr 1fr;gap:10px 18px;margin-top:6px}
.specs3d div{display:grid}
.specs3d b{font-weight:900}
.viewer{position:relative;border-radius:4px;aspect-ratio:4/3;max-width:100%;overflow:hidden;touch-action:none;
  background:radial-gradient(ellipse at 50% 75%,color-mix(in srgb,var(--slate) 16%,transparent),transparent 70%),var(--card)}
.viewer canvas{display:block;width:100%!important;height:100%!important}
.viewer .poster{position:absolute;inset:0;display:grid;place-items:center;align-content:center;gap:10px;text-align:center;padding:20px;color:var(--muted);font-size:14px}
.viewer .hint{position:absolute;left:12px;bottom:10px;font-size:12px;color:var(--muted);pointer-events:none}
.layers{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.chip{font:700 13px var(--f);display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;cursor:pointer}
.chip .dot{width:10px;height:10px;border-radius:50%}
.chip[aria-pressed="false"]{color:var(--muted);opacity:.5}