/* Casa Viel: style.css único para index.html, projetos.html e sobre.html
   Paleta e tipografia do manual de identidade visual v03 */
:root{
  --espresso:#3B2F26;  /* marca e textos */
  --oliva:#6E6849;     /* destaques */
  --taupe:#7A6A58;     /* fundos de destaque */
  --greige:#D6CEC0;    /* fundo da marca, relevos */
  --areia:#ECE6DD;     /* superfícies e padrão */
  --offwhite:#F7F4EF;  /* fundo base */
  --serif:'Italiana','Times New Roman',serif;
  --sans:'Jost','Helvetica Neue',Arial,sans-serif;
  --pad:clamp(22px,5vw,80px);
  --sec:clamp(80px,14vh,160px);
  --bg:var(--offwhite);--ink:var(--espresso);--mute:var(--taupe);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--offwhite);color:var(--espresso);font:300 17px/1.7 var(--sans);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;animation:fadeIn .8s ease}
@keyframes fadeIn{from{opacity:0}}
body.menu-open{overflow:hidden}
img{max-width:100%;display:block}
h1,h2,h3{font-family:var(--serif);font-weight:400;margin:0;letter-spacing:.01em}
a{color:inherit}
button{font-family:inherit;touch-action:manipulation}
:focus-visible{outline:2px solid var(--oliva);outline-offset:3px}
.hidden{display:none}
.rise{opacity:0;transform:translateY(40px);animation:rise 1.2s cubic-bezier(.2,.7,.2,1) var(--d,.15s) forwards}
@keyframes rise{to{opacity:1;transform:none}}

/* botões (altura mínima de 48px) */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:54px;padding:0 38px;background:var(--espresso);border:1px solid var(--espresso);color:var(--offwhite);text-decoration:none;font-weight:400;transition:background .35s,color .35s,border-color .35s}
.btn:hover{background:var(--oliva);border-color:var(--oliva)}
.btn.line{background:none;color:var(--espresso)}
.btn.line:hover{background:var(--espresso);color:var(--offwhite);border-color:var(--espresso)}

/* abertura da home: portas que se afastam (1x por sessão) */
.doors{position:fixed;inset:0;z-index:100;display:flex;pointer-events:none;animation:gone 0s 3.2s forwards}
.doors i{flex:1;background:var(--espresso);animation:o1 1.6s cubic-bezier(.77,0,.18,1) 1.5s forwards}
.doors i+i{animation-name:o2}
.doors img{position:absolute;left:50%;top:50%;width:56px;translate:-50% -50%;animation:in .9s both,out .5s 1.1s forwards}
@keyframes o1{to{transform:translateX(-101%)}}@keyframes o2{to{transform:translateX(101%)}}
@keyframes in{from{opacity:0}}@keyframes out{to{opacity:0}}@keyframes gone{to{visibility:hidden}}
.seen .doors{display:none}
.seen .rise{animation-delay:.2s!important}

/* cabeçalho + hambúrguer */
.nav{position:fixed;inset:0 0 auto;z-index:60;display:flex;justify-content:space-between;align-items:center;padding:calc(env(safe-area-inset-top,0px) + 8px) var(--pad) 8px;transition:color .4s}
.nav::before{content:"";position:absolute;inset:0;z-index:-1;background:rgba(247,244,239,.9);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--greige);opacity:0;transition:opacity .4s,background .4s}
.nav.s::before{opacity:1}
.nav.hh::before{background:rgba(214,206,192,.9);box-shadow:0 1px 0 rgba(59,47,38,.12)}
.brand{display:block;line-height:0;text-decoration:none}
.brand img{height:50px;width:auto}
.brand .lg-c{display:none}
.menu-open .brand .lg-e{display:none}
.menu-open .brand .lg-c{display:block}
.menu-open .nav{color:var(--offwhite)}
.menu-open .nav::before{opacity:0}
.burger{display:flex;align-items:center;gap:14px;min-width:48px;min-height:48px;padding:0 2px;background:none;border:0;color:inherit;cursor:pointer}
.burger .t{display:none;font-size:14px;letter-spacing:.22em;text-transform:uppercase}
.burger i{position:relative;display:block;width:30px;height:10px}
.burger i::before,.burger i::after{content:"";position:absolute;left:0;right:0;height:1.5px;background:currentColor;transition:transform .5s cubic-bezier(.7,0,.2,1),top .5s cubic-bezier(.7,0,.2,1)}
.burger i::before{top:0}.burger i::after{top:8.5px}
.menu-open .burger i::before{top:4px;transform:rotate(45deg)}
.menu-open .burger i::after{top:4px;transform:rotate(-45deg)}
.menu{position:fixed;inset:0;z-index:50;display:flex;flex-direction:column;justify-content:center;padding:110px var(--pad) calc(env(safe-area-inset-bottom,0px) + 44px);background:var(--espresso);color:var(--offwhite);opacity:0;visibility:hidden;transform:translateY(-16px);transition:opacity .5s ease,transform .7s cubic-bezier(.2,.7,.2,1),visibility 0s .7s}
.menu.open{opacity:1;visibility:visible;transform:none;transition-delay:0s}
.menu nav{display:flex;flex-direction:column;align-items:flex-start}
.menu a.m{display:block;min-height:48px;padding:4px 0;font:400 clamp(46px,11vw,108px)/1.12 var(--serif);text-decoration:none;opacity:0;transform:translateY(30px);transition:opacity .6s,transform .8s cubic-bezier(.2,.7,.2,1),color .3s}
.menu.open a.m{opacity:1;transform:none;transition-delay:calc(.15s + var(--i)*.08s)}
.menu a.m:hover,.menu a.m[aria-current=page]{color:var(--greige)}
.menu .mq{margin:clamp(28px,6vh,56px) 0 0;color:var(--greige);font-size:16px}

/* hero da home */
.hero{min-height:100svh;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:clamp(28px,6vw,100px);padding:130px var(--pad) 80px;background:var(--greige)}
.hero h1{font-size:clamp(42px,6.6vw,104px);line-height:1.02}
.hero p{max-width:34em;margin:26px 0 34px;opacity:.85;font-weight:400}
.frame{padding:14px;border:1px solid var(--taupe);border-radius:999px 999px 0 0;max-width:520px;width:100%;justify-self:center}
.arch{aspect-ratio:4/5.3;overflow:hidden;border-radius:999px 999px 0 0;background:var(--greige)}
.arch img{width:100%;height:112%;object-fit:cover;will-change:transform}
.hero .arch img{animation:zoom 6s cubic-bezier(.2,.6,.2,1) 1.8s both}
.seen .hero .arch img{animation-delay:.2s}
@keyframes zoom{from{scale:1.16}}

/* slider imersivo (peek + setas sobrepostas + swipe) */
.feat{padding:var(--sec) 0 clamp(64px,10vh,110px);background:var(--offwhite)}
.fh{display:flex;justify-content:space-between;align-items:end;gap:20px;flex-wrap:wrap;padding:0 var(--pad) clamp(28px,5vh,52px)}
.fh h2{font-size:clamp(40px,6.5vw,96px);line-height:1}
.fh p{margin:0;max-width:32ch;color:var(--mute);font-weight:400}
.stage{position:relative;--w:min(78vw,1120px)}
.rail{display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;padding:0 calc(50% - var(--w)/2);scrollbar-width:none;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch}
.rail::-webkit-scrollbar{display:none}
.rail.drag{scroll-snap-type:none;cursor:grabbing}
.rail figure{position:relative;margin:0;flex:none;width:var(--w);aspect-ratio:16/9;scroll-snap-align:center;scroll-snap-stop:always;overflow:hidden;background:var(--greige);opacity:.32;transform:scale(.94);transition:opacity .6s,transform .6s;cursor:pointer;user-select:none;-webkit-user-select:none}
.rail figure.on{opacity:1;transform:none}
.rail figure img{width:100%;height:100%;object-fit:cover;pointer-events:none;-webkit-user-drag:none}
.rail figcaption{position:absolute;inset:auto 0 0;display:flex;justify-content:space-between;align-items:flex-end;gap:16px;padding:64px 24px 18px;color:var(--offwhite);background:linear-gradient(transparent,rgba(59,47,38,.78));opacity:0;transition:opacity .6s}
.rail figure.on figcaption{opacity:1}
.rail figcaption span{font:400 clamp(24px,3vw,38px)/1.1 var(--serif)}
.rail figcaption a{display:inline-flex;align-items:center;min-height:48px;font-size:15px;text-decoration:underline;text-underline-offset:6px}
.arrow{position:absolute;top:50%;translate:0 -50%;z-index:2;width:52px;height:52px;display:grid;place-items:center;padding:0;border:0;border-radius:50%;background:rgba(247,244,239,.86);color:var(--espresso);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);cursor:pointer;transition:background .3s,opacity .3s,scale .3s}
.arrow:hover{background:var(--offwhite);scale:1.06}
.arrow[disabled]{opacity:0;pointer-events:none}
.arrow svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.arrow.prev{left:calc(50% - var(--w)/2 + 18px)}
.arrow.next{right:calc(50% - var(--w)/2 + 18px)}
.count{margin:22px 0 0;text-align:center;font:400 20px var(--serif);letter-spacing:.24em;color:var(--mute)}
.cta-row{margin-top:clamp(28px,5vh,48px);padding:0 var(--pad);text-align:center}

/* manifesto */
.man{position:relative;background:var(--areia);padding:clamp(110px,22vh,250px) var(--pad);overflow:hidden}
.man::before{content:"";position:absolute;inset:0;background:url(../assets/brand/elementos_visuais/Padrao_Portais_Transparente.png) center/760px;opacity:.5}
.big{position:relative;margin:0 auto;max-width:15em;text-align:center;font:400 clamp(34px,5.6vw,84px)/1.12 var(--serif)}
.big span{opacity:.18;transition:opacity .5s}

/* cabeçalho de página (projetos e sobre) */
.pg{padding:calc(env(safe-area-inset-top,0px) + 150px) var(--pad) clamp(28px,5vh,56px)}
.pg h1{font-size:clamp(56px,11vw,168px);line-height:.95}
.pg p{max-width:34em;margin:24px 0 0;font-weight:400;color:var(--mute)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:clamp(28px,5vh,48px)}
.chips a{display:inline-flex;align-items:center;min-height:48px;padding:0 24px;border:1px solid var(--greige);border-radius:999px;text-decoration:none;font-size:16px;transition:background .3s,color .3s,border-color .3s}
.chips a:hover{background:var(--espresso);border-color:var(--espresso);color:var(--offwhite)}

/* portfólio: mosaico editorial */
.pj{padding:var(--sec) var(--pad);background:var(--bg);color:var(--ink)}
.pj.alt{--bg:var(--areia)}
.pj.dark{--bg:var(--espresso);--ink:var(--areia);--mute:var(--greige)}
.ph{display:flex;justify-content:space-between;align-items:end;gap:20px;flex-wrap:wrap;margin-bottom:clamp(28px,5vh,56px)}
.ph h2{font-size:clamp(42px,7vw,104px);line-height:1}
.ph p{margin:0;max-width:36ch;color:var(--mute);font-weight:400}
.mosaic{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-flow:dense;gap:clamp(8px,1.4vw,20px)}
.mosaic figure{position:relative;margin:0;overflow:hidden;background:var(--greige);cursor:zoom-in}
.mosaic figure.w{grid-column:span 4;aspect-ratio:16/10}
.mosaic figure.t{grid-column:span 2}
.mosaic figure.h{grid-column:span 3;aspect-ratio:4/3}
.mosaic figure.d{grid-column:1/-1;aspect-ratio:21/9}
.mosaic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.4s cubic-bezier(.2,.6,.2,1)}
.mosaic figcaption{position:absolute;inset:auto 0 0;padding:44px 16px 14px;color:var(--offwhite);font-size:14px;line-height:1.4;background:linear-gradient(transparent,rgba(59,47,38,.75));opacity:0;transition:opacity .5s}
@media(hover:hover){.mosaic figure:hover img{transform:scale(1.04)}.mosaic figure:hover figcaption{opacity:1}}

/* ampliar imagem */
.lb{position:fixed;inset:0;z-index:90;display:none;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:rgba(36,28,22,.97)}
.lb.open{display:flex}
.lb img{max-width:94vw;max-height:78vh;object-fit:contain}
.lb .cap{margin:0;max-width:60ch;padding:0 20px;text-align:center;color:var(--greige);font-size:15px;min-height:1.7em}
.lb button{position:absolute;width:56px;height:56px;background:none;border:0;color:var(--offwhite);font-size:38px;line-height:1;cursor:pointer}
.lb [data-a=x]{top:calc(env(safe-area-inset-top,0px) + 6px);right:8px}.lb [data-a=p]{left:4px;top:50%}.lb [data-a=n]{right:4px;top:50%}

/* sobre: editorial, com respiro */
.about{display:grid;grid-template-columns:.85fr 1fr;gap:clamp(48px,9vw,140px);align-items:center;background:var(--offwhite);padding:calc(env(safe-area-inset-top,0px) + 150px) var(--pad) var(--sec)}
.about .frame{position:relative;padding:0;border:0;border-radius:0;max-width:470px;justify-self:center;margin:0 22px 22px 0}
.about .frame::before{content:"";position:absolute;inset:0;transform:translate(22px,22px);border:1px solid var(--oliva);border-radius:999px 999px 0 0}
.about .arch{position:relative}
.about .arch img{height:100%;object-position:48% center}
.sign{width:min(100%,380px);margin-bottom:clamp(28px,5vh,44px)}
.lead{margin:0 0 24px;max-width:20em;font:400 clamp(25px,2.7vw,36px)/1.3 var(--serif)}
.txt{margin:0;max-width:34em;font-size:18px;line-height:1.85;opacity:.85}
.facts{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(30px,4vw,52px) clamp(28px,4vw,56px);margin:clamp(40px,7vh,64px) 0 0}
.facts dt{margin-bottom:8px;font-size:12px;font-weight:500;letter-spacing:.26em;text-transform:uppercase;color:var(--oliva)}
.facts dd{margin:0;font:400 21px/1.35 var(--serif)}

/* como trabalhamos: cascata e números em marca d'água */
.process{--g:clamp(56px,7vw,104px);background:var(--areia);padding:var(--sec) var(--pad)}
.process h2{font-size:clamp(42px,7vw,104px);line-height:1}
.process .intro{margin:20px 0 0;max-width:30em;opacity:.75}
.steps{list-style:none;margin:clamp(56px,10vh,120px) 0 0 auto;padding:0 0 calc(var(--g)*.7);max-width:1080px;display:grid;grid-template-columns:1fr 1fr;gap:var(--g) clamp(48px,8vw,140px)}
.steps li{position:relative;padding:clamp(40px,5vw,72px) 0 0 clamp(26px,3vw,44px);border-left:1px solid rgba(59,47,38,.14)}
.steps li:nth-child(even){transform:translateY(calc(var(--g)*.7))}
.steps b{position:absolute;left:clamp(10px,2vw,28px);top:0;z-index:0;font:400 clamp(130px,17vw,250px)/.8 var(--serif);color:var(--greige);pointer-events:none;user-select:none}
.steps h3,.steps p{position:relative;z-index:1}
.steps h3{margin:0 0 12px;font:400 clamp(28px,3vw,38px)/1.1 var(--serif)}
.steps p{margin:0;max-width:26ch;opacity:.8}

/* contato (formulário) + rodapé: em todas as páginas */
.ct{background:var(--espresso);color:var(--areia);padding:var(--sec) var(--pad) 32px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,7vw,120px)}
.ct h2{font-size:clamp(42px,7vw,112px);line-height:.98}
.ct .grid p{margin:22px 0 0;max-width:30em;color:var(--greige);font-weight:400}
.f{display:grid;gap:22px;align-content:start}
.f label{display:grid;gap:2px;font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--greige)}
.f input:not([type=hidden]),.f textarea{width:100%;min-height:48px;padding:12px 0;background:none;border:0;border-bottom:1px solid #6b5b4d;border-radius:0;color:var(--offwhite);font:300 17px var(--sans);letter-spacing:0;text-transform:none;transition:border-color .3s}
.f input:focus,.f textarea:focus{outline:0;border-color:var(--areia)}
.f input:invalid:not(:placeholder-shown):not(:focus),.f textarea:invalid:not(:placeholder-shown):not(:focus){border-color:#c9937a}
.f ::placeholder{color:#9b8d7f}
.h-captcha{min-height:78px;max-width:100%;overflow:hidden}
.send{justify-self:start;position:relative;overflow:hidden;min-height:56px;margin-top:4px;padding:0 40px;border:1px solid var(--areia);background:var(--areia);color:var(--espresso);font:500 16px var(--sans);cursor:pointer;transition:color .4s}
.send::before{content:"";position:absolute;inset:0;background:var(--oliva);transform:translateX(-101%);transition:transform .5s cubic-bezier(.7,0,.2,1)}
.send span{position:relative}
.send:hover,.send:focus-visible{color:var(--offwhite)}
.send:hover::before,.send:focus-visible::before{transform:none}
footer{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px 24px;margin-top:clamp(64px,11vh,130px);padding-top:28px;border-top:1px solid #5a4c40}
.f-logo{justify-self:start;line-height:0}
.f-logo img{height:48px;width:auto}
.f-links{display:flex;gap:6px}
.f-links a{display:flex;align-items:center;min-height:48px;padding:0 14px;text-decoration:none;font-size:16px;color:var(--areia);transition:color .3s}
.f-links a:hover{color:var(--offwhite);text-decoration:underline;text-underline-offset:6px}
.ig{justify-self:end;display:grid;place-items:center;width:48px;height:48px;border:1px solid #6b5b4d;border-radius:50%;color:var(--areia);transition:background .35s,color .35s,border-color .35s,transform .35s}
.ig svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.5}
.ig:hover,.ig:focus-visible{background:var(--areia);color:var(--espresso);border-color:var(--areia);transform:translateY(-3px)}
footer small{grid-column:1/-1;padding-top:8px;text-align:center;color:var(--greige);font-size:14px}

@media(min-width:821px){.burger .t{display:block}}
@media(max-width:1000px){
  .mosaic{grid-template-columns:repeat(2,1fr)}
  .mosaic figure.w,.mosaic figure.d{grid-column:1/-1;aspect-ratio:16/10}
  .mosaic figure.t,.mosaic figure.h{grid-column:span 1;aspect-ratio:4/5}
  .steps{grid-template-columns:repeat(2,1fr)}
}
/* mobile: sensação de aplicativo */
@media(max-width:820px){
  body{font-size:17px}
  html{scroll-padding-top:68px}
  .brand img{height:42px}
  .hero,.about,.grid{grid-template-columns:1fr}
  .hero{min-height:auto;padding-top:104px;padding-bottom:64px;gap:40px}
  .hero p{margin:20px 0 28px}
  .hero .btn,.cta-row .btn{width:100%}
  .frame{max-width:380px}
  .stage{--w:92vw}
  .rail{gap:5px}
  .rail figure{aspect-ratio:4/3.3;transform:scale(.96)}
  .rail figcaption{padding:48px 16px 14px}
  .arrow{width:44px;height:44px}
  .arrow.prev{left:calc(50% - var(--w)/2 + 8px)}.arrow.next{right:calc(50% - var(--w)/2 + 8px)}
  .pg{padding-top:calc(env(safe-area-inset-top,0px) + 110px)}
  .about{padding-top:calc(env(safe-area-inset-top,0px) + 110px)}
  .about .frame{max-width:340px;justify-self:start;margin:0 14px 14px 0}
  .about .frame::before{transform:translate(14px,14px)}
  .facts{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;margin-left:0;padding-bottom:0;gap:44px}
  .steps li:nth-child(even){transform:none}
  .send{width:100%;justify-self:stretch}
  footer{grid-template-columns:1fr;justify-items:center;text-align:center;gap:6px}
  .f-logo,.ig{justify-self:center}
  .f-links{flex-wrap:wrap;justify-content:center}
  .ig{margin-top:8px}
  .mosaic figcaption{display:none}
}
@media(prefers-reduced-motion:reduce){
  .doors{display:none}*{animation:none!important;transition:none!important}.rise{opacity:1;transform:none}.big span{opacity:1}
}