@font-face {
    font-family: 'Mundial';
    src: url(/assets/fonts/MundialLight.otf) format('opentype');
    font-weight: 300;
    font-style: normal;
    font-display: swap;
  }
  @font-face {
    font-family: 'Mundial';
    src: url(/assets/fonts/MundialRegular.otf) format('opentype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
  }
  @font-face {
    font-family: 'Mundial';
    src: url(/assets/fonts/MundialDemibold.otf) format('opentype');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
  }
  @font-face {
    font-family: 'Mundial';
    src: url(/assets/fonts/MundialBlack.otf) format('opentype');
    font-weight: 900;
    font-style: normal;
    font-display: swap;
  }
  :root{
    --bg:#000000;
    --fg:#ffffff;
    --muted:#8a8a8a;
    --accent:#ffffff;
    --line:rgba(255,255,255,0.16);
    --img-hero: url(/assets/img/hero.jpg);

    --img-cresol: url(/assets/img/cresol.jpg);
    --img-mta: url(/assets/img/mta.jpg);
    --img-sinal: url(/assets/img/sinal.jpg);

    --display: 'Mundial', sans-serif;
    --body: 'Mundial', sans-serif;
    --mono: 'Mundial', sans-serif;
  }

  *{margin:0;padding:0;box-sizing:border-box;}

  html{scroll-behavior:smooth;}

  body{
    background:var(--bg);
    color:var(--fg);
    font-family:var(--body);
    font-weight:400;
    line-height:1.5;
    -webkit-font-smoothing:antialiased;
  }

  a{color:inherit;text-decoration:none;}

  ::selection{background:#ffffff;color:#000000;}

  :focus-visible{
    outline:2px solid var(--accent);
    outline-offset:3px;
  }

  .wrap{
    max-width:1400px;
    margin:0 auto;
    padding:0 32px;
  }

  /* ---------- NAV ---------- */
  header.nav{
    position:fixed;
    top:0;left:0;right:0;
    z-index:100;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:22px 32px;
    font-family:var(--mono);
    font-weight:600;
    font-size:12px;
    letter-spacing:0.08em;
    text-transform:uppercase;
  }

  .nav .word{
    font-family:var(--display);
    font-weight:900;
    font-size:18px;
    letter-spacing:0.02em;
    text-transform:none;
  }

  .nav ul{
    display:flex;
    gap:28px;
    list-style:none;
  }

  .nav ul a{
    position:relative;
    opacity:0.85;
    transition:opacity .2s ease;
  }
  .nav ul a:hover{opacity:1;}
  .nav ul a::after{
    content:'';
    position:absolute;
    left:0;bottom:-4px;
    width:0;height:1px;
    background:currentColor;
    transition:width .25s ease;
  }
  .nav ul a:hover::after{width:100%;}

  .nav-toggle{display:none;}

  /* ---------- HERO ---------- */
  .hero{
    position:relative;
    width:100%;
    aspect-ratio:16/9;
    max-height:100svh;
    background-image:var(--img-hero);
    background-size:cover;
    background-position:center;
    background-color:#000;
  }

  /* título real da página, lido por buscadores e leitores de tela */
  .visually-hidden{
    position:absolute;
    width:1px;height:1px;
    padding:0;margin:-1px;
    overflow:hidden;
    clip:rect(0 0 0 0);
    white-space:nowrap;
    border:0;
  }

  /* ---------- PROJECTS ---------- */
  .project{
    position:relative;
    display:flex;
    align-items:center;
    padding:clamp(72px, 9vw, 130px) 0;
    color:#fff;
    overflow:hidden;
  }

  .project::before{
    content:'';
    position:absolute;
    inset:0;
    z-index:0;
    background-size:cover;
    background-position:center;
    background-color:#000;
  }

  .project::after{
    content:'';
    position:absolute;
    inset:0;
    z-index:1;
    background:linear-gradient(90deg, rgba(0,0,0,0.88) 0%, rgba(0,0,0,0.72) 22%, rgba(0,0,0,0.34) 42%, rgba(0,0,0,0) 58%);
  }

  #cresol::before{background-image:var(--img-cresol);}
  #mta::before{background-image:var(--img-mta);}
  #sinal::before{background-image:var(--img-sinal);}

  #cresol .project-title{font-weight:900;}
  #mta .project-title{font-weight:600;}
  #sinal .project-title{font-weight:300;}

  .project-inner{
    position:relative;
    z-index:2;
    width:100%;
    max-width:1400px;
    margin:0 auto;
    padding:0 32px;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:clamp(32px, 5vw, 80px);
    align-items:center;
  }

  h2.project-title{
    font-family:var(--display);
    font-size:clamp(40px, 5.6vw, 84px);
    line-height:0.92;
    letter-spacing:-0.01em;
    text-transform:uppercase;
    margin-bottom:28px;
  }

  .btn{
    display:inline-flex;
    align-items:center;
    font-family:var(--mono);
    font-weight:600;
    font-size:12px;
    letter-spacing:0.08em;
    text-transform:uppercase;
    padding:14px 26px;
    border:1px solid #fff;
    background:transparent;
    color:#fff;
    transition:background .2s ease, color .2s ease;
  }
  .btn:hover{background:#fff; color:#000;}

  /* moldura do vídeo, coluna da direita */
  .play-frame{
    position:relative;
    width:100%;
    aspect-ratio:16/9;
    border:1px solid rgba(255,255,255,0.7);
    background:transparent;
    display:flex;
    align-items:center;
    justify-content:center;
    cursor:pointer;
    padding:0;
    transition:border-color .25s ease, background .25s ease;
  }
  .play-frame:hover{border-color:#fff;}

  .play-circle{
    width:clamp(52px, 5vw, 72px);
    aspect-ratio:1;
    border-radius:50%;
    border:1px solid #fff;
    display:flex;align-items:center;justify-content:center;
    transition:transform .2s ease;
  }
  .play-frame:hover .play-circle{transform:scale(1.07);}

  .play-circle::after{
    content:'';
    border-style:solid;
    border-width:9px 0 9px 15px;
    border-color:transparent transparent transparent #fff;
    margin-left:5px;
  }

  .play-frame .msg{
    position:absolute;
    bottom:-30px; left:0; right:0;
    font-family:var(--mono);
    font-weight:300;
    font-size:11px;
    letter-spacing:0.1em;
    text-transform:uppercase;
    color:var(--muted);
  }

  .play-frame iframe{
    width:100%;height:100%;
    border:0;display:block;
  }

  /* ---------- FOOTER ---------- */
  footer{
    padding:80px 0 40px;
    border-top:1px solid var(--line);
  }

  .footer-top{
    display:grid;
    grid-template-columns:1.1fr 0.9fr 0.9fr 0.9fr;
    gap:40px;
    padding-bottom:60px;
  }

  footer h3.word{
    font-family:var(--display);
    font-weight:900;
    font-size:32px;
    margin-bottom:16px;
  }

  footer p.tagline{
    color:var(--muted);
    max-width:32ch;
    font-size:14px;
  }

  footer .col-title{
    font-family:var(--mono);
    font-weight:300;
    font-size:11px;
    letter-spacing:0.1em;
    text-transform:uppercase;
    color:var(--muted);
    margin-bottom:16px;
  }

  footer .col a, footer .col span{
    display:block;
    font-size:14px;
    margin-bottom:10px;
    color:var(--fg);
    opacity:0.9;
  }
  footer .col a:hover{opacity:1;text-decoration:underline;}

  .footer-bottom{
    display:flex;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:12px;
    padding-top:24px;
    border-top:1px solid var(--line);
    font-family:var(--mono);
    font-weight:300;
    font-size:11px;
    color:var(--muted);
    text-transform:uppercase;
    letter-spacing:0.06em;
  }

  /* ---------- RESPONSIVE ---------- */
  @media (max-width:860px){
    .nav ul{
      position:fixed;
      top:0;right:0;
      height:100svh;
      width:min(78vw,320px);
      background:var(--bg);
      flex-direction:column;
      justify-content:center;
      padding:0 40px;
      gap:32px;
      transform:translateX(100%);
      transition:transform .35s ease;
      mix-blend-mode:normal;
      border-left:1px solid var(--line);
    }
    .nav ul.open{transform:translateX(0);}
    .nav-toggle{
      display:block;
      background:none;
      border:0;
      color:inherit;
      font-family:var(--mono);
      font-size:12px;
      text-transform:uppercase;
      letter-spacing:0.08em;
      cursor:pointer;
      z-index:110;
    }
    .footer-top{grid-template-columns:1fr;gap:36px;}
    .project::after{
      background:linear-gradient(180deg, rgba(0,0,0,0.82) 0%, rgba(0,0,0,0.45) 45%, rgba(0,0,0,0) 75%);
    }
    .hero{
      aspect-ratio:auto;
      min-height:42svh;
      background-size:contain;
      background-repeat:no-repeat;
      background-position:center;
    }
    .project-inner{
      grid-template-columns:1fr;
      gap:32px;
      padding:0 22px;
    }
    .project{padding:72px 0;}

  }

  @media (prefers-reduced-motion:reduce){
    *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
    html{scroll-behavior:auto;}
  }
  /* ---------- PÁGINAS INTERNAS ---------- */
  .page-head{
    padding:clamp(120px, 15vw, 200px) 0 clamp(40px, 6vw, 70px);
  }

  h1.page-title{
    font-family:var(--display);
    font-weight:900;
    font-size:clamp(44px, 8vw, 104px);
    line-height:0.9;
    letter-spacing:-0.02em;
  }

  .page-lead{
    margin-top:20px;
    max-width:44ch;
    font-weight:300;
    font-size:clamp(15px, 1.4vw, 18px);
    color:var(--muted);
  }

  /* CTA da home */
  .home-cta{
    padding:clamp(70px, 9vw, 120px) 0;
    border-top:1px solid var(--line);
  }

  .home-line{
    max-width:24ch;
    font-family:var(--display);
    font-weight:300;
    font-size:clamp(24px, 3.4vw, 44px);
    line-height:1.1;
    margin-bottom:36px;
  }

  .btn-dark{
    border-color:#fff;
    color:#fff;
  }

  /* contato */
  .contact-block{
    padding:0 0 clamp(80px, 10vw, 140px);
  }

  .contact-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:clamp(28px, 4vw, 56px);
    border-top:1px solid var(--line);
    padding-top:clamp(36px, 4vw, 56px);
  }

  .contact-label{
    font-weight:300;
    font-size:11px;
    letter-spacing:0.14em;
    text-transform:uppercase;
    color:var(--muted);
    margin-bottom:14px;
  }

  .contact-big{
    display:block;
    font-family:var(--display);
    font-weight:300;
    font-size:clamp(17px, 1.7vw, 22px);
    line-height:1.5;
    color:#fff;
  }
  .contact-big:hover{text-decoration:underline;}

  .nav ul a.active{opacity:1;}
  .nav ul a.active::after{width:100%;}

  @media (max-width:860px){
    .contact-grid{grid-template-columns:1fr;}
    .page-head{padding:120px 0 40px;}
  }