*{
box-sizing: border-box;
margin: 0;
padding: 0;
}
@import url('https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swap');
html{
    font-size: 62.5%;
}
body {
font-size: 1.2rem;
font-family: Arial, Helvetica, sans-serif;
background-image: url(./2cf296c94a91d9d7ef8eb5e5326398bd.jpg);
background-size: cover; /* Ajusta la imagen para cubrir todo el fondo */
background-position: center; /* Centra la imagen en el fondo */
background-repeat: no-repeat; /* Evita que la imagen se repita */
}
.indice {
    font-weight: 600;
}
.subtitulo{
    font-weight: 600;
}   
img{
    width: 100%;
}
a{ 
    text-decoration: none;
    color: oklch(0.38 0.11 159.08);
}
select{
    border-radius: 4px;
    cursor: pointer;
}
.nav{
    display: flex;
    flex-direction: row;
    align-items: stretch;
    justify-content: space-between;
}
.back{
    border-radius: 20px;
    background: #052e7e;
    padding: 4px;
    margin: 2px;
    display: flex;
    flex-direction: column;
}
.indice {
    padding: 2px 12px 0 12px;
    font-size: 1.4rem;
    text-align: end;
    color: #ffffff;
}
.logoUla{
    width: 80%;
}
.subtitulo{
    color: white;
    background-color: #2f6fcf;
    border-radius: 16px;
    font-size: 1.4rem;
    padding: 4px;
    text-align: center;
    margin: 8px 0 4px 0;
}
.formu{
    margin: 8px 8px 0 8px;
    border-radius: 8px;
    border: transparent;
    background: #ddefffad;
    padding: 4px;
}
.C1{
    border-radius: 8px;
    padding: 4px;
    font-size: 1.4rem;
    font-weight: 600;
    color: #ffffff;
    text-align: center;
    background-color:#232394;
}
.main-section{
    display: flex;
    flex-direction: row;
    align-items: stretch;
    justify-content: space-around;
    flex-wrap: wrap;
}
.link-pag{
    animation: rainbow 2.5s linear;
    animation-iteration-count: infinite;
}
.captcha{
    user-select: none;
    text-decoration: line-through;
    text-decoration-style: wavy;
    font-size: 1.8rem;
    font-style: oblique;
    border-radius: 8px;
}
.boton1 { 
    width: 90%;
    color: rgb(0, 0, 102);
    border: solid 0.5px;
    border-radius: 12px;
    cursor: pointer;
}
.boton2 { 
    width: 90%;
    color: rgb(9 9 153);
    border: solid 0.1px;
    border-radius: 12px;
    font-size: 1.2rem;
    padding: 4px;
}
.tablas { 
border-left:2px solid #C0C0C0; 
border-right:2px solid #000000; 
border-top:2px solid #C0C0C0; 
border-bottom:2px solid #000000; 
padding:4px; 
background-color:#808080  ;
border-radius: 12px;
}
.celda{ 
padding: 4px;
font-size: 1.2rem;
background-color: #efeffb;
text-align: center;
border-radius: 8px;
}
.celdas3{
    text-align: center;
}
.celda_titulo { 
border-radius: 4px;
padding:4px; 
background-color:#A6D2FF; 
font-size:1.2rem;   
}
.titulo_tabla { 
border-radius: 8px;
padding: 4px;
background-color:#232394; 
font-size:1.6rem; 
color:#FFFF00; 
text-align:center;
font-weight: 600;
}
#security_code {
    border-radius: 8px;
}
select {
    text-shadow: none;
}
input{
    text-align: center;
}
@media (min-width: 425px) {
    .logoUla{
        width: 35%;
    }
    select, .C1, .celda, .boton2, .celda_titulo, .indice, .subtitulo{
        font-size: 1.4rem;
    }
  }

@media (min-width: 768px) {
    .logoUla{
        width: 30%;
    }
    .main-section{
        margin: 50px 10px 0 10px ;
    }
    select, .C1, .celda, .boton2, .celda_titulo, .indice, .subtitulo{
        font-size: 1,8rem;
    }
    .captcha{
        font-size: 2rem;
    }
  }
@media (min-width: 1000px) {
    .logoUla{
        width: 20%;
    }
    select, .C1, .celda, .boton2, .celda_titulo, .indice, .subtitulo{
        font-size: 2rem;
    }
    .captcha{
        font-size: 2.6rem;
    }

  }
@media (min-width: 1200px) {
    select, .C1, .celda, .boton2, .celda_titulo, .indice, .subtitulo, #captcha-input{
        font-size: 2.2rem;
    }
    p{
        padding: 4px
    }
    .formu{
    padding: 8px;
    height: 95%;
    }
    .captcha{
        font-size: 3rem;
    }
}
@keyframes rainbow{
    100%,0%{
      color: rgb(255,0,0);
    }
    8%{
      color: rgb(255,127,0);
    }
    16%{
      color: rgb(255,255,0);
    }
    25%{
      color: rgb(127,255,0);
    }
    33%{
      color: rgb(0,255,0);
    }
    41%{
      color: rgb(0,255,127);
    }
    50%{
      color: rgb(0,255,255);
    }
    58%{
      color: rgb(0,127,255);
    }
    66%{
      color: rgb(0,0,255);
    }
    75%{
      color: rgb(160, 65, 255);
    }
    83%{
      color: rgb(255, 103, 255);
    }
    91%{
      color: rgb(255, 49, 152);
    }
  }
  #captcha-canvas {
    border: 1px solid #ccc;
    font-style: oblique;
}