/* Andrade Dias Engenharia — site.css | mono quente + dourado assinatura */

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;overflow-x:clip;scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0}
img,svg,video{display:block;max-width:100%;height:auto}
button,input,textarea,select{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,figure{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--gold-2);outline-offset:3px;border-radius:3px}

/* ---------- tokens ---------- */
:root{
  --ink:#17120E; --ink-2:#241C15; --ink-3:#2E251C;
  --paper:#F7F2EA; --paper-2:#EFE6D8;
  --gold-1:#8D603A; --gold-2:#B5885C; --gold-3:#DDAF7D;
  --muted:#6E6357; --muted-d:#B7AB9B;
  --line:rgba(23,18,14,.12); --line-d:rgba(247,242,234,.16);
  --grad:linear-gradient(90deg,#8D603A,#B5885C,#DDAF7D);
  --f-display:"Fraunces",Georgia,"Times New Roman",serif;
  --f-body:"Hanken Grotesk",system-ui,-apple-system,"Segoe UI",sans-serif;
  --container:1200px;
  --r:14px;
  --shadow:0 24px 60px -30px rgba(23,18,14,.5);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- base ---------- */
body{
  font-family:var(--f-body);color:var(--ink);background:var(--paper);
  font-size:17px;line-height:1.65;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
section{position:relative}

/* type */
.display{font-family:var(--f-display);font-weight:400;line-height:1.06;letter-spacing:-.01em;text-wrap:balance}
h1.display{font-size:clamp(2.5rem,6.2vw,4.6rem)}
h2.display{font-size:clamp(2rem,4.4vw,3.3rem)}
h3.display{font-size:clamp(1.4rem,2.4vw,1.9rem)}
.lead{font-size:clamp(1.06rem,1.7vw,1.3rem);color:var(--muted);line-height:1.6;text-wrap:pretty}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{font-family:var(--f-body);font-weight:600;font-size:.78rem;letter-spacing:.24em;
  text-transform:uppercase;color:var(--gold-2);display:inline-flex;align-items:center;gap:.7em}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--grad);display:inline-block}
.section-pad{padding:clamp(72px,10vw,132px) 0}

/* section head */
.s-head{max-width:760px;margin-bottom:clamp(40px,5vw,64px)}
.s-head .lead{margin-top:20px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.6em;font-weight:600;font-size:1rem;
  padding:16px 30px;border-radius:100px;border:1px solid transparent;cursor:pointer;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s,color .3s;
  position:relative;letter-spacing:.01em}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--grad);color:#20160D;box-shadow:0 14px 34px -14px rgba(141,96,58,.8)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 20px 44px -14px rgba(141,96,58,.95)}
.btn-ghost{background:transparent;border-color:var(--line-d);color:var(--paper)}
.btn-ghost:hover{border-color:var(--gold-3);color:var(--gold-3)}
.btn-dark{background:var(--ink);color:var(--paper)}
.btn-dark:hover{transform:translateY(-3px);background:var(--ink-2)}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;transition:background .4s,border-color .4s,backdrop-filter .4s;
  border-bottom:1px solid transparent}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand img{height:34px;width:auto}
.site-header.scrolled{background:rgba(20,15,11,.86);backdrop-filter:blur(14px);border-bottom-color:var(--line-d)}
.nav{display:flex;align-items:center;gap:34px}
.nav a{font-size:.95rem;color:var(--paper);opacity:.82;transition:opacity .25s,color .25s;position:relative}
.nav a::after{content:"";position:absolute;left:0;bottom:-6px;height:1px;width:0;background:var(--grad);transition:width .3s var(--ease)}
.nav a:hover{opacity:1}.nav a:hover::after{width:100%}
.header-cta{padding:11px 22px;font-size:.92rem}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{width:26px;height:2px;background:var(--paper);transition:.3s}

/* mobile off-canvas */
.mobile-nav{position:fixed;inset:0;z-index:70;background:var(--ink);display:flex;flex-direction:column;
  padding:88px 32px 40px;transform:translateX(100%);transition:transform .4s var(--ease);visibility:hidden}
.mobile-nav.open{transform:none;visibility:visible}
.mobile-nav a{color:var(--paper);font-family:var(--f-display);font-size:1.7rem;padding:16px 0;border-bottom:1px solid var(--line-d)}
.mobile-nav .btn{margin-top:28px;justify-content:center}
.mobile-close{position:absolute;top:24px;right:24px;background:none;border:0;color:var(--paper);font-size:2rem;cursor:pointer;line-height:1}

/* ---------- hero ---------- */
.hero{min-height:100svh;display:flex;align-items:flex-end;position:relative;overflow:hidden;background:var(--ink)}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-media picture{position:absolute;inset:0;display:block}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center 38%;transform:scale(1.06);will-change:transform}
.hero-media::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,14,9,.62) 0%,rgba(20,14,9,.34) 32%,rgba(20,14,9,.72) 74%,rgba(15,10,6,.94) 100%)}
.hero-inner{position:relative;z-index:2;padding-bottom:clamp(64px,9vw,120px);padding-top:140px;width:100%}
.hero-inner .eyebrow{color:var(--gold-3)}
.hero h1{color:var(--paper);margin:22px 0 0;max-width:16ch}
.hero .lead{color:var(--paper);opacity:.9;max-width:44ch;margin-top:26px}
.hero-actions{margin-top:38px;display:flex;flex-wrap:wrap;gap:16px;align-items:center}
.hero-micro{color:var(--muted-d);font-size:.9rem;display:flex;align-items:center;gap:.6em;margin-top:20px}
.hero-micro::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold-3);box-shadow:0 0 0 4px rgba(221,175,125,.18)}

/* ---------- split (image + text) ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(36px,5vw,80px);align-items:center}
.split.rev{grid-template-columns:1fr 1.05fr}
.split.rev .split-media{order:2}
.split-media{position:relative;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split-media img[data-parallax]{transform:scale(1.14);will-change:transform}
.split-media .tag{position:absolute;left:18px;bottom:18px;background:rgba(20,15,11,.72);backdrop-filter:blur(6px);
  color:var(--paper);font-size:.8rem;letter-spacing:.02em;padding:9px 15px;border-radius:100px;border:1px solid var(--line-d)}
.split-body p+p{margin-top:18px}

/* ---------- timeline (como atuamos) ---------- */
.tl{position:relative;margin-top:20px}
.tl-line{position:absolute;left:19px;top:6px;bottom:6px;width:2px;background:var(--line)}
.tl-line span{position:absolute;inset:0;background:var(--grad);transform-origin:top;transform:scaleY(var(--tl,0));transition:transform 1.1s var(--ease)}
.tl-item{position:relative;padding:0 0 clamp(30px,4vw,46px) 62px}
.tl-item:last-child{padding-bottom:0}
.tl-num{position:absolute;left:0;top:-2px;width:40px;height:40px;border-radius:50%;background:var(--paper);
  border:1px solid var(--line);display:grid;place-items:center;font-family:var(--f-display);font-size:1.05rem;color:var(--gold-1);z-index:1}
.tl-item.in .tl-num{border-color:var(--gold-2);box-shadow:0 0 0 5px rgba(181,136,92,.12)}
.tl-item h3{font-size:1.22rem;font-weight:600;margin-bottom:6px;font-family:var(--f-body)}
.tl-item p{color:var(--muted);max-width:52ch}

/* ---------- obra em foco (interstício cinematográfico — assinatura) ---------- */
.obra-foco{position:relative;min-height:min(620px,64vh);display:flex;align-items:flex-end;overflow:hidden;background:var(--ink)}
.obra-foco .of-media{position:absolute;inset:0;z-index:0}
.obra-foco .of-media img{width:100%;height:100%;object-fit:cover;object-position:center 50%;transform:scale(1.04);will-change:transform}
.obra-foco .of-media::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,10,6,.9) 0%,rgba(15,10,6,.55) 42%,rgba(15,10,6,.12) 72%,transparent 100%),
             linear-gradient(0deg,rgba(15,10,6,.72),transparent 55%)}
.obra-foco .container{position:relative;z-index:2;padding-top:clamp(70px,10vw,120px);padding-bottom:clamp(56px,7vw,88px);width:100%}
.obra-foco .of-eyebrow{color:var(--gold-3)}
.obra-foco h2{color:var(--paper);margin:16px 0 0;max-width:16ch}
.obra-foco .of-sub{color:var(--muted-d);margin-top:18px;max-width:40ch;font-size:1.06rem}
.of-meta{display:flex;flex-wrap:wrap;gap:14px 26px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line-d);max-width:640px}
.of-meta .m{display:flex;flex-direction:column;gap:3px}
.of-meta .m b{font-family:var(--f-display);font-size:1.5rem;font-weight:400;color:var(--gold-3);line-height:1}
.of-meta .m span{font-size:.82rem;letter-spacing:.06em;color:var(--muted-d);text-transform:uppercase}
.of-link{display:inline-flex;align-items:center;gap:.6em;margin-top:30px;color:var(--paper);font-weight:600;font-size:1rem;
  border-bottom:1px solid var(--line-d);padding-bottom:5px;transition:gap .3s var(--ease),border-color .3s,color .3s}
.of-link:hover{gap:1.1em;border-color:var(--gold-3);color:var(--gold-3)}
/* estampa da marca como fio condutor (assinatura) — só em seção escura sólida, bem sutil */
.estampa-motif{position:absolute;inset:0;z-index:1;background-image:url(/assets/img/estampa.webp);
  background-size:300px;background-position:center;background-repeat:repeat;opacity:.05;pointer-events:none}

/* ---------- editorial list (diferenciais / garantias) — sem numeral, hairline+estampa ---------- */
.edlist{display:grid;grid-template-columns:1fr 1fr;gap:0 clamp(30px,5vw,72px)}
.ed{position:relative;padding:30px 0 30px 30px;border-top:1px solid var(--line);transition:padding-left .35s var(--ease)}
.ed::after{content:"";position:absolute;left:0;top:32px;width:3px;height:26px;background:var(--grad);border-radius:2px}
.ed::before{content:"";position:absolute;left:-16px;right:-16px;top:0;bottom:0;
  background:linear-gradient(90deg,rgba(181,136,92,.1),transparent 68%);opacity:0;transition:opacity .35s;z-index:-1;border-radius:8px}
.ed:hover{padding-left:40px}.ed:hover::before{opacity:1}
.ed h3{font-family:var(--f-display);font-size:1.32rem;font-weight:400;margin-bottom:7px;letter-spacing:-.01em}
.ed p{color:var(--muted);font-size:1rem;max-width:44ch}
/* primeiro item ganha respiro editorial assimétrico */
.edlist .ed:first-child{grid-row:span 1}
@media(min-width:961px){.edlist{grid-template-columns:1.15fr 1fr}}

/* ---------- feature list (garantias, previsibilidade) ---------- */
.feat{display:grid;gap:14px;margin-top:10px}
.feat li{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;
  padding:24px 26px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}
.feat li:hover{transform:translateY(-3px);border-color:rgba(181,136,92,.5);box-shadow:0 18px 40px -26px rgba(23,18,14,.5)}
.feat .ic{width:44px;height:44px;border-radius:11px;background:var(--ink);display:grid;place-items:center;flex:none}
.feat .ic svg{width:22px;height:22px;stroke:var(--gold-3)}
.feat strong{display:block;font-size:1.08rem;font-weight:600;margin-bottom:3px}
.feat span{color:var(--muted);font-size:.98rem}

/* ---------- stats / sobre ---------- */
.sobre{background:var(--ink);color:var(--paper)}
.sobre .split-media img{aspect-ratio:3/4}
.sobre h2{color:var(--paper)}
.sobre .lead{color:var(--muted-d)}
.stats{display:flex;gap:clamp(28px,5vw,64px);margin:36px 0 30px;flex-wrap:wrap}
.stat .n{font-family:var(--f-display);font-size:clamp(2.6rem,5vw,3.6rem);line-height:1;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.stat .l{color:var(--muted-d);font-size:.92rem;margin-top:8px;max-width:20ch}
.sobre .eyebrow{color:var(--gold-3)}

/* ---------- portfolio (galeria em grade) ---------- */
.gal-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:12px}
.gal-item{position:relative;margin:0;border-radius:var(--r);overflow:hidden;background:var(--ink)}
.gal-item img{width:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform .7s var(--ease);transform:scale(1.02)}
.gal-item:hover img{transform:scale(1.09)}
.gal-item figcaption{position:absolute;left:0;right:0;bottom:0;z-index:1;padding:34px 16px 14px;
  color:var(--paper);font-size:.9rem;line-height:1.35;pointer-events:none;opacity:.9;
  transition:opacity .3s var(--ease);
  background:linear-gradient(180deg,rgba(20,14,9,0) 0%,rgba(18,12,7,.86) 100%)}
.gal-item:hover figcaption,.gal-item:focus-within figcaption{opacity:1}
.gal-open{position:absolute;inset:0;z-index:2;border:0;background:transparent;cursor:pointer;font-size:0}
.gal-open::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px transparent;transition:box-shadow .35s}
.gal-item:hover .gal-open::after{box-shadow:inset 0 0 0 1px rgba(221,175,125,.5)}

/* ---------- FAQ ---------- */
.faq{max-width:none}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{width:100%;background:none;border:0;cursor:pointer;text-align:left;display:flex;justify-content:space-between;
  align-items:center;gap:24px;padding:26px 0;font-size:1.12rem;font-weight:600;color:var(--ink)}
.faq-q svg{flex:none;width:22px;height:22px;transition:transform .35s var(--ease);stroke:var(--gold-2)}
.faq-item.open .faq-q svg{transform:rotate(45deg)}
.faq-a{overflow:hidden;max-height:0;transition:max-height .4s var(--ease)}
.faq-a p{padding:0 0 26px;color:var(--muted);max-width:70ch}

/* ---------- CTA final ---------- */
.cta{background:var(--ink);color:var(--paper);text-align:center;overflow:hidden;position:relative}
.cta .container{position:relative;z-index:2}
.cta .estampa-motif{opacity:.06;background-size:300px;background-position:center}
.cta .eyebrow{color:var(--gold-3);justify-content:center;display:flex}
.cta h2{color:var(--paper);max-width:34ch;margin:22px auto 0}
.cta .lead{color:var(--muted-d);max-width:52ch;margin:22px auto 0}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:56px 0 46px}
.step{position:relative;padding:30px 22px;border:1px solid var(--line-d);border-radius:var(--r);text-align:left;background:var(--ink-2)}
.step .sn{font-family:var(--f-display);font-size:1.1rem;color:#20160D;background:var(--grad);width:38px;height:38px;
  border-radius:50%;display:grid;place-items:center;margin-bottom:16px}
.step h3{font-size:1.08rem;font-weight:600;font-family:var(--f-body);margin-bottom:6px;color:var(--paper)}
.step p{color:var(--muted-d);font-size:.95rem}
.step .draw{position:absolute;left:64px;right:-22px;top:49px;height:1px;background:var(--line-d);z-index:0}
.step .draw span{display:block;height:100%;width:100%;background:var(--grad);transform:scaleX(var(--dw,0));transform-origin:left;transition:transform .8s var(--ease)}
@media (prefers-reduced-motion:reduce){.step .draw span{transform:scaleX(1)}}
html:not(.js) .step .draw span{transform:scaleX(1)}
.step:last-child .draw{display:none}

/* ---------- footer ---------- */
.footer{background:#100B07;color:var(--muted-d);padding:64px 0 34px}
.footer-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:40px;border-bottom:1px solid var(--line-d)}
.footer img.flogo{height:40px;margin-bottom:18px}
.footer .fabout{max-width:38ch;font-size:.95rem;line-height:1.6}
.footer .fcol h4{color:var(--paper);font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;margin-bottom:16px}
.footer .fcol a,.footer .fcol p{font-size:.95rem;display:block;margin-bottom:10px;transition:color .25s}
.footer .fcol a:hover{color:var(--gold-3)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:26px;font-size:.85rem;color:#8B7E6E}
.footer-bottom a:hover{color:var(--gold-3)}

/* ---------- cookie banner (LEFT) ---------- */
.cookie{position:fixed;left:max(24px,calc((100% - 1200px)/2 + 24px));bottom:22px;z-index:80;max-width:390px;background:var(--ink);color:var(--paper);
  border:1px solid var(--line-d);border-radius:var(--r);padding:22px 22px 20px;box-shadow:var(--shadow);
  transform:translateY(140%);transition:transform .5s var(--ease)}
.cookie.show{transform:none}
.cookie p{font-size:.9rem;color:var(--muted-d);margin-bottom:16px}
.cookie a{color:var(--gold-3);text-decoration:underline}
.cookie .row{display:flex;gap:10px;flex-wrap:wrap}
.cookie .btn{padding:10px 18px;font-size:.88rem}
.cookie .btn-mini{background:transparent;border:1px solid var(--line-d);color:var(--paper)}
.cookie .btn-mini:hover{border-color:var(--gold-3);color:var(--gold-3)}

/* ---------- lightbox ---------- */
.lb{position:fixed;inset:0;z-index:100;background:rgba(12,8,5,.94);display:none;align-items:center;justify-content:center}
.lb.open{display:flex}
.lb img{max-width:90vw;max-height:82vh;border-radius:8px;box-shadow:var(--shadow)}
.lb .lb-close{position:absolute;top:22px;right:26px;background:none;border:0;color:var(--paper);font-size:2.2rem;cursor:pointer;line-height:1}
.lb .lb-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(247,242,234,.1);border:1px solid var(--line-d);
  color:var(--paper);width:52px;height:52px;border-radius:50%;cursor:pointer;font-size:1.5rem;display:grid;place-items:center;transition:background .25s}
.lb .lb-nav:hover{background:rgba(221,175,125,.22)}
.lb .prev{left:26px}.lb .next{right:26px}
.lb .lb-count{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);color:var(--muted-d);font-size:.9rem;letter-spacing:.05em}

/* ---------- reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
[data-reveal].in{opacity:1;transform:none}
[data-reveal][data-delay="1"]{transition-delay:.08s}
[data-reveal][data-delay="2"]{transition-delay:.16s}
[data-reveal][data-delay="3"]{transition-delay:.24s}
.sticky-safe[data-reveal]{transform:none}

@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important}
  [data-reveal]{opacity:1!important;transform:none!important}
  .tl-line span{transform:scaleY(1)!important}
  .gal-item img{transform:none!important}
}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .nav,.header-cta{display:none}
  .nav-toggle{display:flex}
  .split,.split.rev{grid-template-columns:1fr;gap:32px}
  .split.rev .split-media{order:0}
  .sobre .split-media img{aspect-ratio:16/10}
  .edlist{grid-template-columns:1fr}
  .gal-grid{grid-template-columns:repeat(3,1fr);gap:14px}
  .steps{grid-template-columns:1fr}
  .step .draw{display:none}
}
@media (max-width:560px){
  body{font-size:16px}
  .container{padding:0 20px}
  .gal-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .gal-item figcaption{font-size:.78rem;padding:26px 11px 11px}
  .stats{gap:24px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{justify-content:center}
  .cookie{left:12px;right:12px;bottom:12px;max-width:none}
  .footer-top{flex-direction:column;gap:28px}
  .lb .lb-nav{width:44px;height:44px}
  .lb .prev{left:10px}.lb .next{right:10px}
}

/* Botão flutuante do Merlin com a cor da identidade Andrade Dias (aro dourado; ícone é opaco/verde no arquivo do gomerlin) */
.merlin-button{background:var(--grad)!important}