* {        
    margin: 0px; 
    padding: 0px;        
    scroll-behavior: smooth;
    font-family: Arial, Helvetica, sans-serif;
}
a {
    color: blue;
    text-decoration: none;
    transition: all ease-in-out .5s;        
}
a:hover {
    text-decoration: underline;
}

b {
    color: blue;
}

div {overflow: auto;}

summary::-webkit-details-marker {display: none;} /*instrucción para iOS safari. */
summary {
    cursor: pointer;
    list-style: none;
}

h2 {
    color: red;
    text-align: center;
}
h3 {
    color: green;    
    text-align: center;
}

hr {
    margin: 10px 0px;
}

i {
    color: royalblue;
}
li {
    text-align: justify;
}

p {
    /* margin-bottom: 12px; */
    margin: 12px;
}
q {
    color: green;
}
ul {
    margin-left: 15px;
}

body {                 
    background-color:rgb(255, 255, 247);
}
header {    
    background-color: black;
    border-bottom: 1px solid white;
    padding: 20px 5px;

    display: flex;
    align-items: center;            
    justify-content: space-between;
}
header div {
   text-align: center;
   width: 150px;
}
header h1 {
    color: white;
    font-size: 3.4em;
    text-shadow: 0px 0px 18px royalblue;
}
header h2 {
    color: lavender;
}
header img {     
    vertical-align: middle;     
    height: 80px;
}
#caja-1 {flex: 1;}        
#caja-2 {flex: 3;}
#caja-3 {flex: 1;}

/* .manana h2 {color: rgb(255, 207, 207);}
.tarde h2 {color: rgb(255, 255, 215);}
.atardecer h2 {color: rgb(213, 213, 255);}
.noche h2 {color: blue;} */

#output {color: white; font-size: 2em;}

#fecha {
    background-color: rgb(35, 35, 35);    
    padding: 15px 5px;
    text-align: center;
}
#fecha a {
    text-decoration: none;
}
#fecha h3 {
    color: greenyellow;
    padding: 5px;
}
#consejo {        
    color: cyan;
    padding-top: 10px;
    text-align: center;
}

main {
    /* background-color: ; */
    border-bottom: 2px solid red;
    border-top: 2px solid red;
    margin: auto;
    padding: 10px;
    max-width: 1400px;    
}
main h2 {
    padding: 10px 0px;
}
main p {
    text-align: center;
}
main ol {
    margin-left: 25px;
}
main li {
    margin-top: 12px;
}

.boton details {
    margin: 0px;
}
.boton summary {
    background-color: white;
    border: 2px solid rgb(130, 130, 130);
    border-radius: 10px;
    box-shadow: 0px 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    margin: auto;
    width: 200px;
}
.boton summary:hover {
    box-shadow: 0px 0px 10px royalblue;
    background-color: rgb(224, 255, 224);
}

.boton div {
    margin-top: 10px;
}

.ikpitl {
    color: greenyellow;
}
.inicio {    
    font-size: 1.3em;
    margin: 12px 0px 0px 0px;
    text-align: center;
}

.contenedor-contacto {
    color: white;    
    text-align: center;
    background-color: rgb(35, 35, 35);
    padding: 10px;
}
.enlace {
    border: 0px;    
    display: flex;
    flex-wrap: wrap;
    gap: 10px 25px;
    justify-content: center;
    list-style: none;
    padding-top: 15px;
    text-decoration: none;
}
.enlace a:hover {
    color: white;        
}

#contacto-iconos {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 0px;
    gap: 40px;    
}

#contacto-iconos img {
    width: 40px;
}

footer {
    background: black;
    border-top: 1px solid white;
    color: white;    
    padding: 10px 0px;        
    text-align: center;
}
footer hr {
    margin: 10px 0px;
}        
footer p {
    margin: 5px 0px;
    text-align: center;
}


/* clases */
.t31 {width: 20%;}
.t32 {width: 60%;}
.t33 {width: 20%;}

.t41 {width: 25%;}
.t42 {width: 25%;}
.t43 {width: 25%;}
.t44 {width: 25%;}

.t51 {width: 20%;}
.t52 {width: 20%;}
.t53 {width: 20%;}
.t54 {width: 20%;}
.t55 {width: 20%;}