/* ==========================================================================
   Up Mármores | Landing Page — redesign 2026
   Mais orgânico, arredondado e focado em fotografia / obra real.
   ========================================================================== */

:root{
  --ink:#0b0b0c;
  --ink-2:#131315;
  --ink-3:#1b1b1e;
  --bone:#f4f1ec;
  --bone-2:#e9e4dc;
  --stone:#b1aaa0;
  --stone-2:#716b63;
  --line:rgba(255,255,255,.13);
  --line-dark:rgba(11,11,12,.12);
  --white:#fff;

  --display:'Manrope',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --body:'DM Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;

  --wrap:1220px;
  --gut:clamp(20px,5vw,56px);
  --sec:clamp(72px,9vw,124px);
  --r-sm:16px;
  --r:26px;
  --r-lg:40px;
  --pill:999px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--bone);
  font-family:var(--body);
  font-size:16px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}

h1,h2,h3,h4{
  font-family:var(--display);
  font-weight:500;
  line-height:1.05;
  letter-spacing:-.035em;
  margin:0;
}
h1{font-size:clamp(2.55rem,6vw,5rem);font-weight:600}
h2{font-size:clamp(2rem,4.2vw,3.45rem)}
h3{font-size:clamp(1.15rem,2vw,1.48rem);letter-spacing:-.02em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-inline:var(--gut)}
.section{padding-block:var(--sec)}
.section--light{background:var(--bone);color:var(--ink)}
.section--soft{background:var(--ink-2)}

.eyebrow{
  width:max-content;max-width:100%;
  font-family:var(--body);
  font-size:.74rem;
  font-weight:600;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--stone);
  margin:0 0 20px;
  padding:9px 13px;
  display:flex;align-items:center;gap:9px;
  border:1px solid var(--line);
  border-radius:var(--pill);
  background:rgba(255,255,255,.045);
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;flex:none}
.section--light .eyebrow{color:var(--stone-2);border-color:var(--line-dark);background:rgba(11,11,12,.035)}

.lead{font-size:clamp(1rem,1.45vw,1.14rem);color:var(--stone);max-width:62ch}
.section--light .lead{color:var(--stone-2)}

/* ---------- Botões ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:50px;padding:13px 24px;
  font-family:var(--body);font-size:.9rem;font-weight:600;letter-spacing:0;
  border-radius:var(--pill);border:1px solid transparent;cursor:pointer;
  transition:background .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.btn svg{width:18px;height:18px;flex:none}
.btn--solid{background:var(--bone);color:var(--ink);box-shadow:0 10px 30px rgba(0,0,0,.18)}
.btn--solid:hover{background:var(--white);transform:translateY(-2px);box-shadow:0 14px 34px rgba(0,0,0,.24)}
.btn--ghost{border-color:var(--line);color:var(--bone);background:rgba(255,255,255,.05);backdrop-filter:blur(8px)}
.btn--ghost:hover{border-color:rgba(255,255,255,.35);background:rgba(255,255,255,.1)}
.section--light .btn--ghost{border-color:var(--line-dark);color:var(--ink);background:rgba(11,11,12,.03)}
.section--light .btn--ghost:hover{border-color:rgba(11,11,12,.3);background:rgba(11,11,12,.07)}
.btn--dark{background:var(--ink);color:var(--bone);box-shadow:0 10px 30px rgba(11,11,12,.14)}
.btn--dark:hover{background:var(--ink-3);transform:translateY(-2px)}
.btn--sm{min-height:42px;padding:10px 18px;font-size:.82rem}

/* ---------- Header ---------- */
.header{
  position:fixed;inset:0 0 auto 0;z-index:60;
  background:transparent;padding-top:12px;
  transition:padding .25s ease;
}
.header__bar{
  width:calc(100% - 28px);max-width:1180px;
  min-height:84px;padding:8px 10px 8px 18px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:rgba(11,11,12,.52);
  border:1px solid rgba(255,255,255,.1);
  border-radius:28px;
  backdrop-filter:blur(16px);
  box-shadow:0 12px 36px rgba(0,0,0,.12);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.header.is-stuck{padding-top:8px}
.header.is-stuck .header__bar{background:rgba(11,11,12,.9);border-color:rgba(255,255,255,.13);box-shadow:0 14px 36px rgba(0,0,0,.25)}
.brand{display:flex;align-items:center;min-width:110px}
.brand img{width:auto;height:62px;object-fit:contain;object-position:left center}
.nav{display:flex;align-items:center;gap:26px}
.nav a{font-family:var(--body);font-size:.84rem;font-weight:500;color:#c6c1b9;transition:color .2s ease}
.nav a:hover{color:var(--white)}
.header .btn{white-space:nowrap}
.nav-toggle{display:none;background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--bone);border-radius:16px;padding:10px 12px;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:1.5px;background:currentColor;margin:5px 0}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:calc(100svh - 24px);
  margin:12px;
  display:flex;align-items:flex-end;
  padding-block:150px 0;
  overflow:hidden;border-radius:var(--r-lg);
  isolation:isolate;
}
.hero__bg{position:absolute;inset:0;z-index:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;transform:scale(1.02)}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 78% 25%,rgba(0,0,0,.04) 0%,rgba(0,0,0,.34) 48%,rgba(0,0,0,.54) 100%),
    linear-gradient(180deg,rgba(8,8,9,.55) 0%,rgba(8,8,9,.2) 38%,rgba(8,8,9,.88) 100%);
}
.hero__inner{position:relative;z-index:1;width:100%;padding-bottom:clamp(30px,4.5vw,58px)}
.hero h1{max-width:13.5ch;margin-bottom:22px;text-wrap:balance}
.hero h1 em{font-style:normal;color:#d6d0c7}
.hero__sub{max-width:58ch;color:#ddd8d1;font-size:clamp(1rem,1.5vw,1.16rem);margin-bottom:30px}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:clamp(32px,5vw,48px)}
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;border:0}
.facts div{
  min-height:92px;padding:16px 17px;
  background:rgba(12,12,13,.42);
  border:1px solid rgba(255,255,255,.11);
  border-radius:20px;
  backdrop-filter:blur(12px);
}
.facts dt{font-family:var(--body);font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--stone);margin-bottom:6px}
.facts dd{margin:0;font-size:.97rem;line-height:1.35;color:var(--bone)}

/* ---------- Sobre ---------- */
.about{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(34px,6vw,76px);align-items:center}
.about__text{max-width:610px}
.about__media{position:relative}
.about__media img{width:100%;height:clamp(390px,52vw,620px);object-fit:cover;border-radius:34px}

/* ---------- Serviços ---------- */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2.2vw,24px);margin-top:clamp(36px,5vw,54px)}
.service{overflow:hidden;border-radius:30px;background:var(--ink-2);border:1px solid var(--line);padding:8px;transition:transform .3s ease,border-color .3s ease}
.service:hover{transform:translateY(-5px);border-color:rgba(255,255,255,.22)}
.service img{width:100%;height:clamp(270px,31vw,360px);object-fit:cover;border-radius:23px;transition:transform .7s cubic-bezier(.2,.7,.3,1)}
.service:hover img{transform:scale(1.025)}
.service__body{position:static;padding:22px 16px 20px;background:none}
.service__body h3{margin-bottom:8px}
.service__body p{font-size:.94rem;color:var(--stone);margin:0}

/* ---------- Materiais ---------- */
.materials{margin-top:clamp(36px,5vw,54px);display:grid;grid-template-columns:repeat(2,1fr);gap:14px;border:0}
.material{
  display:grid;grid-template-columns:3.4rem 1fr;gap:16px;align-items:start;
  padding:24px;border:1px solid var(--line-dark);border-radius:24px;
  background:rgba(255,255,255,.34);
}
.material__idx{
  width:44px;height:44px;display:grid;place-items:center;
  border-radius:14px;background:var(--ink);color:var(--bone);
  font-family:var(--body);font-size:.76rem;font-weight:600;letter-spacing:.04em;
}
.material__name{font-family:var(--display);font-size:clamp(1.28rem,2.3vw,1.8rem);font-weight:600;line-height:1.12}
.material__desc{color:var(--stone-2);font-size:.95rem;margin-top:7px;max-width:58ch}

/* ---------- Galeria ---------- */
.gallery{margin-top:clamp(36px,5vw,54px);display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(12px,1.4vw,18px)}
.gallery figure{margin:0;position:relative;aspect-ratio:1/1;overflow:hidden;border-radius:24px;cursor:zoom-in;background:var(--ink-3);border:1px solid var(--line)}
.gallery img{width:100%;height:100%;display:block;object-fit:cover;transition:transform .65s cubic-bezier(.2,.7,.3,1),opacity .3s ease}
.gallery figure:hover img{transform:scale(1.025);opacity:.9}

/* ---------- Processo ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:clamp(36px,5vw,54px)}
.step{min-height:230px;border:1px solid var(--line);padding:24px;border-radius:24px;background:rgba(255,255,255,.035)}
.step__n{display:inline-flex;padding:7px 10px;border-radius:var(--pill);background:rgba(255,255,255,.07);font-family:var(--body);font-size:.72rem;font-weight:600;letter-spacing:.04em;color:var(--stone);margin-bottom:28px}
.step h3{margin-bottom:10px}
.step p{font-size:.94rem;color:var(--stone)}

/* ---------- Faixa arquitetos ---------- */
.arch{display:grid;grid-template-columns:1fr 1fr;gap:clamp(22px,4vw,44px);align-items:stretch}
.arch>div:first-child{padding:clamp(26px,4vw,46px);border:1px solid var(--line-dark);border-radius:32px;background:rgba(255,255,255,.38);display:flex;flex-direction:column;justify-content:center}
.arch__list{list-style:none;margin:26px 0 0;padding:0;display:grid;gap:12px}
.arch__list li{display:flex;gap:12px;align-items:flex-start;font-size:.97rem;color:var(--stone-2)}
.arch__list li::before{content:"✓";width:24px;height:24px;display:grid;place-items:center;margin-top:1px;border-radius:50%;background:var(--ink);color:var(--bone);font-size:.72rem;flex:none}
.arch__media img{width:100%;height:100%;min-height:520px;object-fit:cover;border-radius:32px}

/* ---------- Formulário ---------- */
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,6vw,76px);align-items:start}
.form{background:var(--bone);color:var(--ink);padding:clamp(24px,3.4vw,38px);border-radius:30px;border:1px solid rgba(255,255,255,.1);box-shadow:0 24px 70px rgba(0,0,0,.22)}
.form__row{display:grid;gap:14px;margin-bottom:14px}
.form__row--2{grid-template-columns:1fr 1fr}
.field label{display:block;font-family:var(--body);font-size:.76rem;font-weight:600;letter-spacing:.03em;color:var(--stone-2);margin-bottom:7px}
.field input,.field select,.field textarea{width:100%;padding:14px 15px;border:1px solid rgba(11,11,12,.14);border-radius:15px;font-family:var(--body);font-size:.98rem;color:var(--ink);background:#fff;transition:border-color .2s ease,box-shadow .2s ease}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:rgba(11,11,12,.4);box-shadow:0 0 0 4px rgba(11,11,12,.05)}
.field textarea{min-height:112px;resize:vertical}
.form .btn{width:100%;margin-top:3px}
.form__note{font-size:.8rem;color:var(--stone-2);margin-top:14px;text-align:center}
.form__ok{display:none;margin-top:14px;padding:13px 15px;border:1px solid var(--line-dark);border-radius:15px;font-size:.9rem}
.form__ok.is-visible{display:block}
.contact__info{list-style:none;margin:28px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.contact__info>div{padding:15px 16px;border-radius:17px;border:1px solid var(--line);background:rgba(255,255,255,.035)}
.contact__info dt{font-family:var(--body);font-size:.7rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--stone);margin-bottom:4px}
.contact__info dd{margin:0;font-size:.96rem;line-height:1.38}

/* ---------- FAQ ---------- */
.faq{margin-top:clamp(32px,4.6vw,48px);display:grid;gap:10px;border:0}
.faq details{border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.035);overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:20px 52px 20px 20px;position:relative;font-family:var(--display);font-size:clamp(1rem,1.8vw,1.22rem);font-weight:500;letter-spacing:-.02em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);width:30px;height:30px;display:grid;place-items:center;border-radius:50%;background:rgba(255,255,255,.07);font-family:var(--body);font-size:1rem;color:var(--stone)}
.faq details[open] summary::after{content:"–"}
.faq p{padding:0 52px 20px 20px;color:var(--stone);font-size:.96rem}

/* ---------- CTA final ---------- */
.cta{position:relative;overflow:hidden;margin:12px;border-radius:var(--r-lg);min-height:520px;display:flex;align-items:center}
.cta__bg{position:absolute;inset:0}
.cta__bg img{width:100%;height:100%;object-fit:cover}
.cta__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,8,9,.86),rgba(8,8,9,.56))}
.cta__inner{position:relative;z-index:1;text-align:left;max-width:620px;margin-left:max(0px,calc((100% - var(--wrap))/2));margin-right:auto}
.cta__inner h2{margin-bottom:18px}
.cta__inner .lead{margin:0 0 28px;color:#d7d1c9}

/* ---------- Rodapé ---------- */
.footer{background:var(--ink);padding-block:clamp(54px,6vw,76px) 28px}
.footer__grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:clamp(28px,4vw,56px)}
.footer .brand img{width:auto;height:86px}
.footer h4{font-family:var(--body);font-size:.76rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--stone);margin-bottom:16px}
.footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:.95rem;color:#c9c3ba}
.footer a:hover{color:var(--white);text-decoration:underline}
.footer__brand p{color:var(--stone);font-size:.93rem;max-width:38ch;margin-top:18px}
.footer__bottom{margin-top:clamp(36px,5vw,56px);padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:.82rem;color:var(--stone-2)}

/* ---------- WhatsApp flutuante ---------- */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:70;width:58px;height:58px;border-radius:20px;background:var(--bone);color:var(--ink);display:grid;place-items:center;box-shadow:0 12px 34px rgba(0,0,0,.36);transition:transform .25s ease,border-radius .25s ease}
.wa-float:hover{transform:translateY(-3px);border-radius:50%}
.wa-float svg{width:26px;height:26px}

/* ---------- Lightbox ---------- */
.lightbox{position:fixed;inset:0;z-index:90;background:rgba(6,6,7,.95);display:none;place-items:center;padding:24px}
.lightbox.is-open{display:grid}
.lightbox img{max-width:min(1100px,92vw);max-height:88vh;object-fit:contain;border-radius:26px}
.lightbox__close{position:absolute;top:18px;right:18px;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--bone);width:46px;height:46px;border-radius:16px;cursor:pointer;font-size:1.1rem}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- Responsivo ---------- */
@media (max-width:1020px){
  .about,.arch,.contact{grid-template-columns:1fr}
    .services{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr}
  .nav{display:none}
  .nav-toggle{display:block}
  .nav.is-open{
    display:flex;flex-direction:column;align-items:stretch;gap:4px;
    position:absolute;left:14px;right:14px;top:86px;
    background:rgba(11,11,12,.96);border:1px solid var(--line);
    border-radius:22px;padding:10px;box-shadow:0 18px 50px rgba(0,0,0,.35);
  }
  .nav.is-open a{padding:11px 12px;border-radius:12px}
  .nav.is-open a:hover{background:rgba(255,255,255,.06)}
  .arch__media img{min-height:400px}
}
@media (max-width:760px){
  :root{--r-lg:28px}
  .header{padding-top:8px}
  .header__bar{width:calc(100% - 16px);min-height:74px;border-radius:22px;padding:6px 8px 6px 12px}
  .brand img{height:52px}
  .header__cta{display:none}
  .hero{margin:8px;min-height:auto;padding-top:126px;border-radius:28px}
  .hero__inner{padding-bottom:24px}
  .hero h1{font-size:clamp(2.35rem,12vw,4rem)}
  .hero__actions .btn{width:100%}
  .facts{grid-template-columns:1fr 1fr}
  .facts div{min-height:84px;padding:14px}
  .services{grid-template-columns:1fr}
  .service img{height:330px}
  .materials{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step{min-height:auto}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .gallery figure{border-radius:20px}
  .form__row--2{grid-template-columns:1fr}
  .contact__info{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .cta{margin:8px;min-height:500px;border-radius:28px}
  .cta__inner{margin:0 auto;text-align:left}
}
@media (max-width:460px){
  .facts{grid-template-columns:1fr}
  .facts div{min-height:auto}
  .material{grid-template-columns:1fr}
  .material__idx{width:40px;height:40px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}
:focus-visible{outline:2px solid #d9d2c8;outline-offset:3px}