/* ===== TOKENS ===== */
:root{
  --ink:#1c1814;          /* preto amadeirado */
  --ink-soft:#3a322b;
  --bg:#f4efe9;           /* travertino claro */
  --bg-2:#ece4da;
  --paper:#fbf8f4;
  --wood:#9a6e47;         /* madeira */
  --wood-deep:#6e4e30;
  --olive:#5f6b54;        /* mármore verde */
  --line:rgba(28,24,20,.14);
  --muted:#7a7066;
  --serif:'Cormorant Garamond', Georgia, serif;
  --sans:'Jost', system-ui, sans-serif;
  --maxw:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:var(--bg);
  font-weight:300;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.1;letter-spacing:.01em}
h2{font-size:clamp(2rem,4.5vw,3.4rem);font-weight:300}
h3{font-size:1.5rem}

.section-tag{
  font-size:.72rem;letter-spacing:.32em;text-transform:uppercase;
  color:var(--wood-deep);font-weight:400;margin-bottom:1rem;
}
.section-head{max-width:var(--maxw);margin:0 auto 3.5rem;padding:0 6vw}

/* ===== NAV ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:1.4rem 6vw;
  transition:background .4s var(--ease), padding .4s var(--ease), box-shadow .4s;
  mix-blend-mode:difference;
}
.nav.solid{
  mix-blend-mode:normal;
  background:rgba(251,248,244,.92);
  backdrop-filter:blur(12px);
  padding:.9rem 6vw;
  box-shadow:0 1px 0 var(--line);
}
.brand{display:flex;align-items:center;gap:.7rem;color:#fff}
.nav.solid .brand{color:var(--ink)}
.brand-mark{
  font-family:var(--serif);font-size:1.25rem;letter-spacing:.05em;
  border:1px solid currentColor;border-radius:50%;
  width:42px;height:42px;display:grid;place-items:center;flex:none;
}
.brand-name{font-family:var(--serif);font-size:1.15rem;line-height:1;display:flex;flex-direction:column}
.brand-name small{font-family:var(--sans);font-size:.6rem;letter-spacing:.34em;text-transform:uppercase;opacity:.8;margin-top:.25rem}
.nav-links{display:flex;align-items:center;gap:2.2rem}
.nav-links a{color:#fff;font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;position:relative;padding:.2rem 0}
.nav.solid .nav-links a{color:var(--ink)}
.nav-links a:not(.nav-cta)::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:currentColor;transition:width .35s var(--ease);
}
.nav-links a:not(.nav-cta):hover::after{width:100%}
.nav-cta{border:1px solid currentColor;padding:.55rem 1.1rem !important;border-radius:2px;transition:background .3s,color .3s}
.nav.solid .nav-cta:hover{background:var(--ink);color:var(--paper)}
.nav:not(.solid) .nav-cta:hover{background:#fff;color:#000}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;mix-blend-mode:difference}
.nav-toggle span{width:26px;height:1.5px;background:#fff;transition:.3s}

/* ===== HERO ===== */
.hero{position:relative;height:100vh;min-height:620px;display:flex;align-items:flex-end;color:#fff;overflow:hidden}
.hero-img{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.05);animation:heroZoom 14s var(--ease) forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,16,12,.35) 0%,rgba(20,16,12,.1) 40%,rgba(20,16,12,.78) 100%)}
.hero-content{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;width:100%;padding:0 6vw 9vh}
.eyebrow{font-size:.74rem;letter-spacing:.3em;text-transform:uppercase;margin-bottom:1.6rem;opacity:.9}
.hero h1{font-size:clamp(2.4rem,5.4vw,4.6rem);font-weight:300;max-width:16ch;margin-bottom:1.5rem}
.hero-sub{max-width:48ch;font-size:1.05rem;opacity:.92;margin-bottom:2.2rem;font-weight:300}
.scroll-hint{position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);color:#fff;font-size:1.3rem;z-index:2;animation:bob 2s infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* botões */
.btn-line{display:inline-block;border:1px solid currentColor;padding:.95rem 2.3rem;font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;transition:background .35s var(--ease),color .35s}
.hero .btn-line:hover{background:#fff;color:var(--ink)}
.btn-solid{background:var(--ink);color:var(--paper);border:0;padding:1.05rem 2rem;font-family:var(--sans);font-size:.8rem;letter-spacing:.2em;text-transform:uppercase;cursor:pointer;transition:background .3s;width:100%}
.btn-solid:hover{background:var(--wood-deep)}

/* ===== MANIFESTO ===== */
.manifesto{max-width:980px;margin:0 auto;padding:11vh 6vw;text-align:center}
.manifesto-text{font-family:var(--serif);font-size:clamp(1.5rem,3vw,2.3rem);line-height:1.4;font-weight:300;color:var(--ink-soft)}

/* ===== ATUAÇÃO ===== */
.atuacao{background:var(--ink);color:var(--paper);padding:11vh 0}
.atuacao .section-tag{color:var(--wood)}
.atuacao h2{color:var(--paper)}
.atuacao-grid{max-width:var(--maxw);margin:0 auto;padding:0 6vw;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.12)}
.atuacao-card{background:var(--ink);padding:2.6rem 1.8rem;transition:background .4s}
.atuacao-card:hover{background:var(--ink-soft)}
.atuacao-num{font-family:var(--serif);font-size:1rem;color:var(--wood);letter-spacing:.1em}
.atuacao-card h3{margin:1.2rem 0 .8rem;color:var(--paper);font-size:1.4rem}
.atuacao-card p{font-size:.92rem;color:rgba(251,248,244,.66)}

/* ===== PROJETOS ===== */
.projetos{padding:11vh 0 3vh}
.projeto{max-width:var(--maxw);margin:0 auto 8vh;padding:0 6vw;display:grid;grid-template-columns:340px 1fr;gap:4vw;align-items:start}
.projeto-info{position:sticky;top:110px}
.projeto-tipo{font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;color:var(--wood-deep);margin-bottom:.8rem}
.projeto-info h3{font-size:2.2rem;margin-bottom:1.2rem}
.projeto-desc{color:var(--muted);margin-bottom:2rem}
.projeto-meta{list-style:none;display:flex;flex-direction:column;gap:1rem;border-top:1px solid var(--line);padding-top:1.5rem}
.projeto-meta li{font-size:.95rem}
.projeto-meta span{display:block;font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--wood-deep);margin-bottom:.25rem}

.projeto-galeria{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.g-item{border:0;cursor:pointer;aspect-ratio:4/5;background-size:cover;background-position:center;filter:saturate(.96);transition:transform .6s var(--ease),filter .4s;overflow:hidden}
.g-item.g-wide{grid-column:1/-1;aspect-ratio:16/10}
.g-item:hover{filter:saturate(1.05) brightness(1.03)}
.g-item:hover{transform:scale(.985)}

/* ===== ESTÚDIO ===== */
.estudio{display:grid;grid-template-columns:1fr 1fr;min-height:80vh;background:var(--bg-2)}
.estudio-img{background-size:cover;background-position:center;min-height:50vh}
.estudio-texto{padding:11vh 6vw;max-width:640px}
.estudio-texto h2{margin-bottom:1.8rem}
.estudio-texto p{color:var(--muted);margin-bottom:1.3rem;font-size:1.04rem}
.estudio-numeros{list-style:none;display:flex;gap:2.5rem;margin-top:2.5rem;border-top:1px solid var(--line);padding-top:2rem;flex-wrap:wrap}
.estudio-numeros strong{display:block;font-family:var(--serif);font-size:1.5rem;font-weight:400;color:var(--ink)}
.estudio-numeros span{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--wood-deep)}

/* ===== PROCESSO ===== */
.processo{padding:11vh 0}
.processo-grid{max-width:var(--maxw);margin:0 auto;padding:0 6vw;display:grid;grid-template-columns:repeat(4,1fr);gap:2.5rem}
.processo-step span{font-family:var(--serif);font-size:2.4rem;color:var(--wood);display:block;margin-bottom:.8rem}
.processo-step h3{font-size:1.3rem;margin-bottom:.7rem}
.processo-step p{font-size:.92rem;color:var(--muted)}

/* ===== CONTATO ===== */
.contato{background:var(--ink);color:var(--paper);padding:11vh 0}
.contato .section-tag{color:var(--wood)}
.contato h2{color:var(--paper)}
.contato-grid{max-width:var(--maxw);margin:0 auto;padding:0 6vw;display:grid;grid-template-columns:1fr 1fr;gap:5vw;align-items:start}
.contato-texto p{color:rgba(251,248,244,.72);margin:1.2rem 0;max-width:42ch}
.contato-obs{font-size:.88rem;border-left:2px solid var(--wood);padding-left:1rem;color:rgba(251,248,244,.6) !important}
.contato-dados{list-style:none;margin-top:2.5rem;display:flex;flex-direction:column;gap:1.2rem}
.contato-dados span{display:block;font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--wood);margin-bottom:.25rem}
.contato-dados a{border-bottom:1px solid rgba(255,255,255,.3)}

.contato-form{background:rgba(255,255,255,.04);padding:2.5rem;border:1px solid rgba(255,255,255,.1)}
.contato-form label{display:block;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:rgba(251,248,244,.7);margin-bottom:1.3rem}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.contato-form input,.contato-form select,.contato-form textarea{
  width:100%;margin-top:.5rem;background:transparent;border:0;border-bottom:1px solid rgba(255,255,255,.25);
  color:var(--paper);font-family:var(--sans);font-size:.98rem;font-weight:300;padding:.6rem 0;letter-spacing:normal;text-transform:none;
}
.contato-form textarea{resize:vertical}
.contato-form input:focus,.contato-form select:focus,.contato-form textarea:focus{outline:0;border-color:var(--wood)}
.contato-form select option{background:var(--ink);color:var(--paper)}
.contato-form input::placeholder,.contato-form textarea::placeholder{color:rgba(255,255,255,.35)}
.form-nota{font-size:.74rem;color:rgba(251,248,244,.45);margin-top:1rem;text-transform:none;letter-spacing:normal}

/* ===== RODAPÉ ===== */
.rodape{background:#16110d;color:rgba(251,248,244,.7);text-align:center;padding:5vh 6vw;display:flex;flex-direction:column;align-items:center;gap:.8rem}
.rodape-marca{display:flex;align-items:center;gap:.7rem;color:var(--paper);font-family:var(--serif);font-size:1.1rem}
.rodape-marca .brand-mark{width:38px;height:38px;font-size:1rem}
.rodape p{font-size:.86rem}
.rodape-mini{font-size:.74rem;opacity:.5}

/* ===== LIGHTBOX ===== */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(16,12,9,.96);display:none;align-items:center;justify-content:center;padding:4vh 5vw}
.lightbox.open{display:flex}
.lightbox img{max-width:90vw;max-height:88vh;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lb-close{position:absolute;top:2vh;right:3vw;background:none;border:0;color:#fff;font-size:2.6rem;cursor:pointer;line-height:1}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);background:none;border:0;color:#fff;font-size:3.5rem;cursor:pointer;padding:1rem;opacity:.7;transition:opacity .3s}
.lb-nav:hover{opacity:1}
.lb-prev{left:1vw}.lb-next{right:1vw}

/* ===== WhatsApp float ===== */
.wpp-float{position:fixed;right:24px;bottom:24px;z-index:60;width:56px;height:56px;border-radius:50%;background:#25d366;color:#fff;display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.25);transition:transform .3s}
.wpp-float:hover{transform:scale(1.08)}

/* ===== REVEAL ===== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ===== RESPONSIVO ===== */
@media(max-width:980px){
  .atuacao-grid{grid-template-columns:1fr 1fr}
  .processo-grid{grid-template-columns:1fr 1fr;gap:2.5rem 2rem}
  .projeto{grid-template-columns:1fr;gap:2.5rem}
  .projeto-info{position:static}
  .estudio{grid-template-columns:1fr}
  .estudio-img{min-height:55vh}
  .contato-grid{grid-template-columns:1fr;gap:3rem}
}
@media(max-width:640px){
  .nav-links{
    position:fixed;inset:0;background:var(--ink);flex-direction:column;justify-content:center;gap:2rem;
    transform:translateX(100%);transition:transform .4s var(--ease);
  }
  .nav-links.open{transform:none}
  .nav-links a{color:#fff !important;font-size:1.1rem}
  .nav-toggle{display:flex;z-index:60}
  .nav-toggle.open span:first-child{transform:translateY(6.5px) rotate(45deg)}
  .nav-toggle.open span:last-child{transform:translateY(-6.5px) rotate(-45deg)}
  .atuacao-grid{grid-template-columns:1fr}
  .processo-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .estudio-numeros{gap:1.5rem}
  .contato-form{padding:1.8rem}
  .hero{min-height:560px}
}