  :root{
    --ink:#0A0A0A;
    --ivory:#ECE8E1;
    --graphite:#5E5E5E;          /* 5.31:1 sobre marfim */
    --graphite-on-ink:#8A8A8A;   /* 5.73:1 sobre tinta  */
    --graphite-soft:#B8B2A8;
    --line-on-ivory: rgba(10,10,10,0.12);
    --line-on-ink: rgba(236,232,225,0.14);
    --maxw: 1180px;
    --font-display: 'Jost', 'Poppins', sans-serif;
    --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:var(--font-display);
    background:var(--ivory);
    color:var(--ink);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  a{color:inherit; text-decoration:none;}
  a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
    outline:2px solid var(--ink); outline-offset:3px;
  }
  .wrap{max-width:var(--maxw); margin:0 auto; padding:0 32px;}
  .eyebrow{
    font-family:var(--font-mono);
    font-size:11px; letter-spacing:0.2em; text-transform:uppercase;
    color:var(--graphite); font-weight:400;
  }
  .placeholder-flag{
    display:inline-block; font-family:var(--font-mono); font-size:9px; letter-spacing:0.06em;
    text-transform:uppercase; color:#8C2F2C; border:1px solid #8C2F2C; padding:2px 6px;
    margin-left:8px; vertical-align:middle;
  }

  /* ---------- INTRO ---------- */
  /* A animação é 100% CSS: mesmo sem JS o overlay some sozinho. */
  #intro{
    position:fixed; inset:0; background:var(--ink); z-index:9999;
    display:flex; align-items:center; justify-content:center;
    animation: intro-out 2.2s ease forwards;
  }
  #intro img{
    width:min(16vw, 130px); height:auto; opacity:0;
    animation: mark-fade 1.7s ease forwards;
  }
  @keyframes mark-fade{
    0%{ opacity:0; transform:scale(0.94); }
    28%{ opacity:1; transform:scale(1); }
    72%{ opacity:1; }
    100%{ opacity:0; }
  }
  @keyframes intro-out{
    0%, 80%{ opacity:1; visibility:visible; }
    100%{ opacity:0; visibility:hidden; }
  }
  #intro.done{ display:none; }
  /* Segunda visita na mesma aba: nada de esperar a intro de novo. */
  .intro-visto #intro{ display:none; }

  /* ---------- SCROLL REVEAL ---------- */
  /* Escondido só sob .js-reveal, classe que o inline do <head> coloca e o
     failsafe remove. Sem JS vivo, o conteúdo nasce visível. */
  .js-reveal .reveal{
    opacity:0; transform:translateY(48px);
    transition: opacity 1s cubic-bezier(0.16,1,0.3,1), transform 1s cubic-bezier(0.16,1,0.3,1);
  }
  .js-reveal .reveal.in-view{ opacity:1; transform:translateY(0); }

  @media (prefers-reduced-motion: reduce){
    html{ scroll-behavior:auto; }
    .js-reveal .reveal{ opacity:1; transform:none; transition:none; }
    #intro{ animation-duration:0.4s; }
    #intro img{ animation:none; opacity:1; }
  }

  /* ---------- NAV ---------- */
  header{
    position:sticky; top:0; z-index:500; background:rgba(236,232,225,0.94);
    backdrop-filter:blur(8px); border-bottom:1px solid var(--line-on-ivory);
  }
  nav.wrap{ display:flex; align-items:center; justify-content:space-between; height:76px; }
  .brand{ display:flex; align-items:center; gap:12px; }
  .brand img{ height:22px; width:auto; }
  .brand-name{ font-weight:500; font-size:16px; letter-spacing:0.06em; }
  .brand-name span{ font-weight:300; color:var(--graphite); }
  .nav-links{ display:flex; gap:34px; align-items:center; }
  .nav-links a{
    font-size:13px; font-weight:400; letter-spacing:0.04em; position:relative; padding:4px 0;
  }
  .nav-links a::after{
    content:''; position:absolute; left:0; bottom:0; width:0; height:1px; background:var(--ink);
    transition:width 0.25s ease;
  }
  .nav-links a:hover::after{ width:100%; }

  .nav-toggle{
    display:none; width:44px; height:44px; border:none; background:transparent; cursor:pointer;
    align-items:center; justify-content:center; flex-direction:column;
  }
  .nav-toggle span{ display:block; width:20px; height:1px; background:var(--ink); margin:3px 0; transition:transform 0.3s ease, opacity 0.2s ease; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

  .mobile-menu{
    display:none; position:fixed; inset:76px 0 0 0; background:var(--ivory); z-index:499;
    padding:40px 32px; flex-direction:column; gap:4px;
  }
  .mobile-menu.open{ display:flex; }
  .mobile-menu a{
    font-size:26px; font-weight:300; letter-spacing:-0.01em; padding:16px 0;
    border-bottom:1px solid var(--line-on-ivory);
  }

  /* ---------- HERO ---------- */
  .hero{ padding:110px 0 90px; }
  .hero .wrap{ display:grid; grid-template-columns:1.1fr 0.9fr; gap:64px; align-items:end; }
  .hero-mark{ width:32px; margin-bottom:30px; }
  h1.hero-h{
    font-size:clamp(34px, 4.8vw, 60px); font-weight:400; line-height:1.06; letter-spacing:-0.02em;
  }
  h1.hero-h em{ font-style:normal; font-weight:300; color:var(--graphite); }
  .hero-sub{ margin-top:30px; font-size:16px; line-height:1.75; color:#2c2c2c; max-width:46ch; font-weight:300; }
  .hero-actions{ margin-top:38px; display:flex; gap:14px; align-items:center; flex-wrap:wrap; }
  .btn-cta{
    background:var(--ink); color:var(--ivory); padding:14px 24px;
    font-family:var(--font-mono); font-size:11px; letter-spacing:0.12em; text-transform:uppercase;
  }
  .btn-cta:hover{ background:#242424; }
  .btn-ghost{
    border:1px solid var(--ink); padding:13px 24px;
    font-family:var(--font-mono); font-size:11px; letter-spacing:0.12em; text-transform:uppercase;
  }
  .btn-ghost:hover{ background:var(--ink); color:var(--ivory); }
  .hero-side{ border-left:1px solid var(--line-on-ivory); padding-left:32px; }
  .hero-side .eyebrow{ margin-bottom:14px; }
  .hero-side p{ font-size:14px; line-height:1.75; color:var(--graphite); font-weight:300; }

  section{ padding:100px 0; border-top:1px solid var(--line-on-ivory); }
  .section-head{ display:flex; justify-content:space-between; align-items:flex-end; margin-bottom:56px; gap:24px; flex-wrap:wrap; }
  .section-title{ font-size:clamp(28px,3.2vw,40px); font-weight:400; letter-spacing:-0.02em; }
  .section-note{ max-width:34ch; font-size:14px; color:var(--graphite); line-height:1.65; font-weight:300; }

  /* ---------- SOBRE ---------- */
  #sobre .wrap{ display:grid; grid-template-columns:0.85fr 1.15fr; gap:72px; align-items:center; }
  /* Retrato redondo: o disco já é o acabamento, então dispensa moldura, linha de
     chão e sombra. A imagem vem composta sobre o --ivory, por isso encaixa no
     fundo sem borda visível. O diâmetro é o único número a calibrar. */
  .portrait{ --diametro:400px; display:flex; justify-content:center; }
  .portrait img{ display:block; width:var(--diametro); max-width:100%; height:auto; }
  .bio p{ font-size:16px; line-height:1.9; color:#242424; margin-bottom:20px; max-width:56ch; font-weight:300; }

  /* ---------- SERVIÇOS ---------- */
  .services-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line-on-ivory); border:1px solid var(--line-on-ivory); }
  .service-card{ background:var(--ivory); padding:40px 32px; min-height:220px; display:flex; flex-direction:column; justify-content:space-between; }
  .service-mark{ width:26px; height:26px; }
  .service-mark svg{ width:100%; height:100%; }
  .service-card h3{ font-size:18px; font-weight:500; margin:26px 0 10px; letter-spacing:-0.01em; }
  .service-card p{ font-size:14px; line-height:1.7; color:var(--graphite); font-weight:300; }

  /* ---------- MÉTODO ---------- */
  #metodo{ background:var(--ink); color:var(--ivory); }
  #metodo .section-title{ color:var(--ivory); }
  #metodo .eyebrow{ color:var(--graphite-soft); }
  #metodo .section-note{ color:var(--graphite-soft); }
  .method-list{ border-top:1px solid var(--line-on-ink); }
  .method-row{
    display:grid; grid-template-columns:70px 1fr 2fr; gap:32px; padding:28px 0;
    border-bottom:1px solid var(--line-on-ink); align-items:baseline;
  }
  .method-num{ font-family:var(--font-mono); font-size:12px; color:var(--graphite-soft); letter-spacing:0.08em; }
  .method-row h3{ font-size:18px; font-weight:500; letter-spacing:-0.01em; }
  .method-row p{ font-size:14px; color:var(--graphite-soft); line-height:1.7; font-weight:300; }

  /* ---------- PROJETOS ---------- */
  .carousel-shell{ position:relative; }
  .projects-carousel{
    /* mesmo respiro de 2px entre todas as fotos, dentro ou fora do grupo —
       quem separa as obras é o rótulo, não o espaçamento */
    display:flex; gap:2px; background:var(--ivory);
    overflow-x:auto; scroll-snap-type:x proximity;
    scrollbar-width:none; -ms-overflow-style:none;
  }
  .projects-carousel::-webkit-scrollbar{ display:none; }
  .project-group{ flex:0 0 auto; }
  .project-shots{ display:flex; gap:2px; }
  .project-card{
    --h:540px;
    position:relative; overflow:hidden; background:#cfc9bc;
    flex:0 0 auto; scroll-snap-align:start;
    height:var(--h); width:calc(var(--h) * var(--ar));
  }
  .project-card img{ display:block; width:100%; height:100%; object-fit:cover; }
  /* véu discreto no topo: garante leitura do rótulo sobre céus claros */
  .project-card::after{
    content:''; position:absolute; top:0; left:0; width:100%; height:96px; z-index:5;
    background:linear-gradient(to bottom, rgba(10,10,10,0.62), rgba(10,10,10,0));
    pointer-events:none;
  }
  .project-label{ position:absolute; top:22px; left:24px; z-index:6; line-height:1; }
  .project-label span{
    color:var(--ivory); font-family:var(--font-mono); font-size:10px;
    letter-spacing:0.18em; text-transform:uppercase; white-space:nowrap;
    text-shadow:0 1px 6px rgba(10,10,10,0.75), 0 0 2px rgba(10,10,10,0.5);
  }
  .car-btn{
    position:absolute; top:50%; transform:translateY(-50%); z-index:20;
    width:48px; height:48px; border:1px solid rgba(236,232,225,0.7); background:rgba(10,10,10,0.4);
    backdrop-filter:blur(2px); color:var(--ivory); cursor:pointer; border-radius:50%;
    display:flex; align-items:center; justify-content:center; font-size:16px;
    transition:background 0.2s ease, opacity 0.2s ease;
  }
  .car-btn:hover{ background:rgba(10,10,10,0.7); }
  .car-btn[disabled]{ opacity:0.25; cursor:default; }
  #car-prev{ left:16px; }
  #car-next{ right:16px; }
  .carousel-footer{ display:flex; justify-content:flex-start; align-items:center; margin-top:22px; }
  .carousel-counter{ font-family:var(--font-mono); font-size:12px; letter-spacing:0.1em; color:var(--graphite); }

  /* ---------- CONTATO ---------- */
  #contato .wrap{ display:grid; grid-template-columns:0.9fr 1.1fr; gap:72px; }
  .contact-info p{ font-size:16px; line-height:1.8; color:#242424; max-width:40ch; margin-bottom:28px; font-weight:300; }
  .contact-line{ display:flex; gap:14px; font-size:14px; margin-bottom:14px; color:var(--graphite); font-weight:300; line-height:1.6; }
  .contact-line strong{ font-family:var(--font-mono); font-size:11px; letter-spacing:0.1em; text-transform:uppercase; color:var(--ink); font-weight:500; min-width:100px; padding-top:2px; }
  .contatos{ display:flex; flex-direction:column; gap:6px; }
  .contatos a{ position:relative; }
  .contatos a::after{
    content:''; position:absolute; left:0; bottom:-2px; width:0; height:1px;
    background:var(--ink); transition:width 0.25s ease;
  }
  .contatos a:hover{ color:var(--ink); }
  .contatos a:hover::after{ width:100%; }
  .whatsapp-acoes{ display:flex; gap:10px; flex-wrap:wrap; margin-top:12px; }
  .whatsapp-btn{
    display:inline-flex; align-items:center; gap:10px; background:var(--ink); color:var(--ivory);
    padding:16px 26px; font-family:var(--font-mono); font-size:11px; letter-spacing:0.12em;
    text-transform:uppercase;
  }
  .whatsapp-btn:hover{ background:#242424; }
  form{ display:flex; flex-direction:column; gap:20px; }
  .field{ border-bottom:1px solid var(--line-on-ivory); padding-bottom:10px; }
  .field label{ font-family:var(--font-mono); font-size:10px; letter-spacing:0.12em; text-transform:uppercase; color:var(--graphite); }
  .field input, .field textarea{
    width:100%; border:none; background:transparent; font-family:var(--font-display); font-size:16px;
    font-weight:300; padding:8px 0 4px; outline:none; color:var(--ink); resize:vertical;
  }
  .field input:focus, .field textarea:focus{ outline:none; }
  .field:focus-within{ border-bottom-color:var(--ink); }
  .form-submit{
    align-self:flex-start; margin-top:8px; background:transparent; border:1px solid var(--ink);
    padding:15px 30px; font-family:var(--font-mono); font-size:11px; letter-spacing:0.12em;
    text-transform:uppercase; cursor:pointer;
  }
  .form-submit:hover{ background:var(--ink); color:var(--ivory); }
  .form-status{
    font-family:var(--font-mono); font-size:11px; letter-spacing:0.06em;
    line-height:1.6; color:var(--graphite);
  }
  .form-status:empty{ display:none; }

  /* ---------- FOOTER ---------- */
  footer{ background:var(--ink); color:var(--graphite-on-ink); padding:72px 0 28px; }
  .foot-top{ display:flex; justify-content:space-between; align-items:flex-start; flex-wrap:wrap; gap:32px; }
  footer .foot-mark{ height:72px; width:auto; }
  footer .foot-links{ display:flex; gap:28px; font-size:13px; font-weight:300; }
  footer .foot-links a:hover{ color:var(--ivory); }
  .foot-registry{
    margin-top:48px; padding-top:28px; border-top:1px solid var(--line-on-ink);
    display:flex; gap:56px; flex-wrap:wrap;
  }
  .registry-item{ font-size:13px; line-height:1.6; }
  .registry-item strong{ display:block; color:var(--ivory); font-weight:400; letter-spacing:0.01em; }
  .registry-item span{ font-family:var(--font-mono); font-size:11px; letter-spacing:0.06em; color:var(--graphite-on-ink); }
  .foot-bottom{
    margin-top:32px; padding-top:22px; border-top:1px solid var(--line-on-ink);
    font-size:11px; text-align:center; color:var(--graphite-on-ink);
  }

  @media (max-width: 880px){
    .wrap{ padding:0 24px; }
    /* backdrop-filter custa caro em GPU de celular e causa engasgo no scroll */
    header{ backdrop-filter:none; background:var(--ivory); }
    #intro{ animation-duration:1.5s; }
    #intro img{ animation-duration:1.1s; }
    .car-btn{ backdrop-filter:none; }
    .nav-links{ display:none; }
    .nav-toggle{ display:flex; }
    .hero{ padding:70px 0 70px; }
    .hero .wrap, #sobre .wrap, #contato .wrap{ grid-template-columns:1fr; gap:44px; }
    .portrait{ --diametro:300px; }
    .hero-side{ border-left:none; border-top:1px solid var(--line-on-ivory); padding-left:0; padding-top:26px; }
    section{ padding:72px 0; }
    .services-grid{ grid-template-columns:1fr; }
    .service-card{ min-height:auto; padding:32px 26px; }
    .method-row{ grid-template-columns:1fr; gap:8px; padding:24px 0; }
    .project-card{ --h:400px; }
    .car-btn{ width:38px; height:38px; }
    #car-prev{ left:10px; }
    #car-next{ right:10px; }
    .foot-registry{ gap:28px; }
  }