@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap');
*{
  font-family: 'Roboto',sans-serif;
}

.logo {
    font-size: 30px;
    color: #ffffff;
    display: inline-block;
    margin-right: auto;
  }
  
  .logo img {
    max-height: 40px;
    max-width: 150px;
    filter: invert(1);
    align-content: left;
    margin-right: 90px;
  }
  
  .menu-nav {
    background-color: black; 
    color: white; 
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%;
    padding: 10px 0; 
    z-index: 1000;
    text-align: center;
    display: flex; 
    justify-content: center; 
    align-items: center; 
    height: 50px;
  }
  
  .menu-nav a {
    color: white; 
    text-decoration: none; 
    margin: 0 20px; 
    font-weight: 500;
  }
  
  .menu-nav a:hover {
    color: #4070F4;
  }
  
  h1{
    padding-top: 30px;
    color:white;
  }
  
  @media (max-width: 768px) {
    nav.menu-nav {
      align-items: flex-start; 
      padding: 5px; 
    }
  
    nav.menu-nav a {
      font-size: 10px; 
      padding: 5px; 
    }
    .logo {
      width: 30%; 
      margin: 0 auto;
    }
  }

header{
    width: 100%;
    color:#ffffff;
}


body{
    margin: 0;
    padding: 0;
    color:black;
    background-color: white;
    height: 100%;
}

p{
    font-size: 18px;
    font-weight: 400;
}

.inicio {
    position: relative;
    height: 100vh; 
    background: linear-gradient(to bottom, rgba(255,255,255,0.15) 0%, rgba(0,0,0,0.15) 100%), radial-gradient(at top center, rgba(255,255,255,0.40) 0%, rgba(0,0,0,0.40) 120%), url('imagenes/imagen_uns_met.jpg') #989898;
    background-blend-mode: multiply, multiply;
    background-size: cover; 
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    background-repeat: no-repeat;
  }
  
  .inicio img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
  }
  
  .inicio h1 {
    color: white; 
    font-size: 7em; 
  }

#metodo{
    color:black;
    padding-top: 20px;
}

#metodo p{
    color:black;
    text-align: justify;
    margin-right: 90PX;
    margin-left: 90px;
    line-height: 1.5;
}

#metodo h2{
    color: #4070F4;
    text-align: center;
    font-weight: 600;
    font-size: 40px;
    line-height: 1.5;
}

ul{
    color:black;
    text-align: center;
    font-weight: 400;
    font-size: 20px;
    margin-left: 90px;
    margin-right: 90px;
    list-style-type: none;  
}

ul li{ 
    line-height: 1.5;
}

#calculadora{
    line-height: 1.5;
    text-align: center;
    padding-top: 30px;
    font-family: "Roboto", sans-serif;}

#calculadora h2{
    color: #4070F4;
    text-align: center;
    font-family: "Roboto", sans-serif;
    font-weight: 800;
    font-size: 45px;
}

#calculadora label{
    text-align: center;
    font-family: "Roboto", sans-serif;
    font-weight: 700;
    font-size: 20px;
    margin-left: 90px;
    margin-right: 90px;
}

#calculadora button{
    font-family: "Roboto", sans-serif;
    font-weight: 800;
    font-size: 20px;
    background-color:#4070F4;
    color: white;
    border: none; 
    padding: 10px 20px;
    cursor: pointer;
    margin-right: 100px;
}

#calculadora input {
    font-family: "Roboto", sans-serif;
    font-size: 20px;
    width: 400px;
    padding: 10px;
    border-radius: 4px;
    border: 1px solid #4070F4;
}


#metodos h2{
    margin-bottom: 50px;
    color: #4070F4;
    font-family: "Roboto", sans-serif;
    font-weight: 800;
    font-size: 35px;
}

#metodos{
    color:black;
    font-family: "Roboto", sans-serif;
    line-height: 1.5;
}

#footer{
    font-weight: 600;
    font-size: 19px;
    background-color: #4070F4;
    color: black;
    text-align: center;
    padding: 20px;
}

.nota {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
  }

  #chart {
    width: 400px; 
    height: 300px; 
    margin: 20px auto; 
    padding: 10px;
    border: 1px solid #ccc;
    
  }

  #table {
    border-collapse: collapse; 
    padding-top: 30px;
  }
  
  #table th, #table td {
    border: 2px solid #4070F4; 
    padding: 17px; 
    text-align: center; 
  }
  footer{
    position: relative;
    width: 100%;
    background: #3586ff;
    min-height: 100px;
    padding: 20px 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column ;
}

footer .social_icon, 
footer .menu
{
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 10px 0;
    flex-wrap: wrap;
}

  footer .social_icon li,
  footer .menu li{
 list-style: none;
  }

  footer .social_icon li a{
    font-size: 2em;
    color: #fff;
    margin: 0 10px;
    display:inline-block;
    transition: 0.5s;
  }

  footer .social_icon li a:hover{
    transform: translateY(-10px);
  }

  footer .menu li a{
    font-size: 1.2em;
    color: #fff;
    margin: 0 10px;
    display:inline-block;
    text-decoration: none;
    opacity: 0.75;
  }

  footer .menu li a:hover{
    opacity: 1;
  }

  footer p{
    color:#fff;
    text-align: center;
    margin-top: 15px;
    margin-bottom: 10px;
    font-size: 1.1em;
  }

  footer .wave{
  position: absolute;
  top:-100px;
  left: 0;
  width: 100%;
  height: 100px;
  background: url(imagenes/wave.png);
   background-size: 1000px 100px;
  }

  footer .wave#wave1{
    z-index: 1000;
    opacity: 1;
    bottom:0;
    animation: animateWave 4s linear infinite;
  }
  footer .wave#wave2{
    z-index: 999;
    opacity: 0.5;
    bottom:10px;
    animation: animateWave_02 4s linear infinite;
  }
  footer .wave#wave3{
    z-index: 1000;
    opacity: 0.2;
    bottom:15px;
    animation: animateWave 3s linear infinite;
  }
  footer .wave#wave4{
    z-index: 999;
    opacity: 0.7;
    bottom:20px;
    animation: animateWave_02 3s linear infinite;
  }

  @keyframes animateWave{
    0%{
        background-position-x: 1000px;
    }
    100%{
        background-position-x: 0px;
    }
  }
  @keyframes animateWave_02{
    0%{
        background-position-x: 0px;
    }
    100%{
        background-position-x: 1000px;
    }
  }