.the3D {
      height: 100%;
      margin: 0;
      background: url('../img/3DBackground.jpg') no-repeat center center;
      background-size: cover;
      font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
      overflow: hidden;
    }

    .the3Da {
      height: 100%;
      margin: 0;
      background: url('../img/3DaBackground.jpg') no-repeat center center;
      background-size: cover;
      font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
      overflow: hidden;
    }

    #theCanvasContainer{
      position: fixed;
      top: 0;
      left: 0;
      z-index: 10;
    }
    canvas { display:block; width:100vw !important; height: 100vh !important; touch-action: none; user-select: none; opacity:0}
    
    .cabenuva_materials_01 canvas{
        opacity: 1;
    }
    
    .hint{
      position:fixed; left:12px; bottom:12px; padding:8px 10px;
      background:#fff; color:#111; border-radius:8px; font:14px/1.35 system-ui;
      box-shadow:0 4px 18px rgba(0,0,0,.18); opacity:.95;
    }
    body.grabbing, body.grabbing * { cursor: grabbing !important; }

    /* Pantalla de inicio */
    .start {
      position: fixed; inset: 0; z-index: 40;
      display: grid; place-items: center;
      background: rgba(0,0,0,.35);
      backdrop-filter: blur(2px);
    }

    /* Flechas del carrusel (ocultas hasta iniciar) */
    .nav { position: fixed; inset: 0; pointer-events: none; z-index: 10;}
    .nav__btn {
      pointer-events: auto;
      position: absolute; bottom: 50%; transform: translateY(50%);
      width: 150px; height: 150px; border-radius: 999px; border: 0;
      display: grid; place-items: center; user-select: none; cursor: pointer;
      filter: drop-shadow(8px 8px 3px rgba(0,0,0, .2)); transition: .3s;
    }
    .nav__btn:active { transform: translateY(50%) scale(0.9); }
    #prevBtn { left: 16px;  background: url('../img/arrow-left.png')  no-repeat center/100%; }
    #nextBtn { right: 16px; background: url('../img/arrow-right.png') no-repeat center/100%; }
    #prevBtn:hover { transform: translateY(50%) translateX(-10px) scale(1.1); }
    #nextBtn:hover { transform: translateY(50%) translateX( 10px) scale(1.1); }

    @media(max-width:767px){
        .nav__btn {
            bottom: 70px;
            width: 100px;
            height: 100px;
        }

        #prevBtn { left: 5px; }
        #nextBtn { right: 5px;}
        #prevBtn:hover { transform: translateY(50%); }
        #nextBtn:hover { transform: translateY(50%); }
    }






    :root{
    --size: 300px;          /* diámetro del círculo */
    --thickness: -40px;      /* grosor del arco */
    --accent: rgba(0,0,0,0);      /* color del arco restante */
    --track:  #15357b;      /* color del fondo del arco */
    --angle: 360deg;        /* se actualiza por JS */
  }

  .timer{
    position:fixed;
    width:var(--size); height:var(--size);
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) scale(0);
    margin-top: 12vh;
    margin-left: -120px;
    filter: drop-shadow(8px 8px 3px rgba(0,0,0, .2)); 
    pointer-events: none;

  }

  .ring{
  width:100%; height:100%; border-radius:50%;
  /* El progreso que se “come” el aro */
  background: conic-gradient(var(--accent) var(--angle), var(--track) 0);

  /* Máscara para convertir el disco en donut */
  -webkit-mask: radial-gradient(
    farthest-side,
    transparent calc(50% - var(--thickness)), /* agujero */
    #000        calc(50% - var(--thickness))  /* aro visible */
  );
          mask: radial-gradient(
    farthest-side,
    transparent calc(50% - var(--thickness)),
    #000        calc(50% - var(--thickness))
  );

  transform: scaleX(-1);
}



.count{
  position:absolute; inset:0; display:grid; place-items:center;
  color:#15357b;
      font-size: 100px;
    background: url('../img/countDown.png') no-repeat top 35px center;
    border-radius: 50%;
    background-size: 90%;
    margin-top: -20px;
}

.seconds{
  position:absolute;
  color:#15357b;
  font-size: 24px;
      left: 0;
    bottom: 90px;
    text-align: center;
    width: 100%;
}

  /* Opcional: estado final */
  .done .count{ color:#16a34a; }

  #cabenuva_shake{
    left: 50%;
    top: 50%;
    color: #15357b;
    transform: translate(-50%, -50%);
    font-size: 18px;
    margin-top: -32vh;
    text-align: center;
    width: 90%;
    pointer-events: none;
    opacity: 0;
  }

  #cabenuva_03s{
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    margin-top: 28vh;
    margin-left: 0vw;
    pointer-events: none;
  }
  #btCabenuva_03s{
    text-align: left;
    padding: 39px 20px 39px 105px;
    pointer-events: none;
    width: 400px;
    transform: scale(0);
  }

#theOK_timer{
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 120px;
    height: 120px;
    text-align: center;
    margin-top: calc(12vh + 10px);
    margin-left: 23vw;
    font-family: "Raleway", sans-serif;
  }

  #theOK_timer img{
    width: 100%;
  }

  #theOK_timer p{
    margin-top: -20px;
  }

  
#cabenuva_04s{
        top: 50%;
        transform: translateY(-50%);
        padding: 0 !important;
        margin-top: 23vh  !important;
        z-index: 1000;
    }

    #btcabenuva_04s{
        background: url('../img/04_cabenuva.png') no-repeat center center;
        background-size: 100%;
        height: 100px;
        padding: 0;
    }


    #arrows{
      position: fixed;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      z-index: 100;
      pointer-events: none;
      margin-left: 120px;
      filter: drop-shadow(3px 3px 3px rgba(0,0,0, .2));
      opacity:0;
    }


  #cabenuva_attach{
    left: 50%;
    top: 50%;
    color: #15357b;
    transform: translate(-50%, -50%);
    font-size: 18px;
    margin-top: -32vh;
    text-align: center;
    width: 90%;
    pointer-events: none;
    opacity: 0;
  }

  #cabenuva_04s{
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    margin-top: 28vh;
    margin-left: 0vw;
    pointer-events: none;
    z-index: 10000;
  }
  #btCabenuva_04s{
    text-align: left;
    padding: 37px 44px 37px 109px;
    pointer-events: none;
    font-size: 16px;
    width: 400px;
    transform: scale(0);
  }


  #theOK_adapter{
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%) scale(0);
    width: 120px;
    height: 120px;
    text-align: center;
    margin-left: 120px;
  }

  #theOK_adapter img{
    width: 100%;
  }

  #theOK_adapter p{
    margin-top: -20px;
  }


  #syringe_fill{
    left: 50%;
    top: 50%;
    color: #15357b;
    transform: translate(-50%, -50%);
    font-size: 18px;
    margin-top: -32vh;
    text-align: center;
    width: 90%;
    pointer-events: none;
    opacity: 0;
  }

  #cabenuva_05s{
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    margin-top: 28vh;
    margin-left: 0;
    pointer-events: none;
  }
  #btCabenuva_05s{
    text-align: left;
        padding: 45px 26px 44px 93px;
    pointer-events: none;
    font-size: 14px;
    background: url('../img/btCabenuva_05.png') no-repeat center center;
    background-size: contain;
    width: 400px;
    transform: scale(0);
  }


  #theOK_syringe{
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%) scale(0);
    width: 120px;
    height: 120px;
    text-align: center;
    margin-left: 120px;
  }

  #theOK_syringe img{
    width: 100%;
  }

  #theOK_syringe p{
    margin-top: -20px;
  }

  #air_vial{
    left: 50%;
    top: 50%;
    color: #15357b;
    transform: translate(-50%, -50%);
    font-size: 18px;
    margin-top: -32vh;
    text-align: center;
    width: 90%;
    pointer-events: none;
    opacity: 0;
  }

  #cabenuva_06s{
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    margin-top: 32vh;
    margin-left: 0;
    pointer-events: none;
  }
  #btCabenuva_06s{
    text-align: left;
        padding: 45px 26px 44px 93px;
    pointer-events: none;
    font-size: 14px;
    background: url('../img/btCabenuva_05.png') no-repeat center center;
    background-size: contain;
    width: 400px;
    transform: scale(0);
  }

  #siryinge_medicine{
    left: 50%;
    top: 50%;
    color: #15357b;
    transform: translate(-50%, -50%);
    font-size: 18px;
    margin-top: -32vh;
    text-align: center;
    width: 90%;
    pointer-events: none;
    opacity: 0;
  }

  #cabenuva_07s{
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    margin-top: 32vh;
    margin-left: 0;
    pointer-events: none;
  }
  #btCabenuva_07s{
    text-align: left;
        padding: 45px 26px 44px 93px;
    pointer-events: none;
    font-size: 14px;
    background: url('../img/btCabenuva_05.png') no-repeat center center;
    background-size: contain;
    width: 400px;
    transform: scale(0);
  }