body{

    background:#f4f4f4;

    font-family:Arial,Helvetica,sans-serif;

}


.contenedor{

    width:700px;

    margin:60px auto;

    background:white;

    padding:40px;

    border-radius:10px;

    box-shadow:0 0 15px rgba(0,0,0,.2);

    text-align:center;

}


h1{

    color:#1b4d8b;

}


button{

    margin-top:30px;

    padding:12px 30px;

    font-size:16px;

    cursor:pointer;

}

.grande{
    width:95%;
    max-width:1400px;
}

.acciones{
    margin:20px 0;
}

.boton{
    display:inline-block;
    padding:12px 24px;
    background:#1b4d8b;
    color:white;
    text-decoration:none;
    border-radius:6px;
    margin:5px;
}

table{
    width:100%;
    border-collapse:collapse;
    margin-top:25px;
    font-size:14px;
}

th,td{
    border:1px solid #ddd;
    padding:10px;
    text-align:left;
    vertical-align:top;
}

th{
    background:#1b4d8b;
    color:white;
}.grande{
    width:95%;
    max-width:1400px;
}

.acciones{
    margin:20px 0;
}

.boton{
    display:inline-block;
    padding:12px 24px;
    background:#1b4d8b;
    color:white;
    text-decoration:none;
    border-radius:6px;
    margin:5px;
}

table{
    width:100%;
    border-collapse:collapse;
    margin-top:25px;
    font-size:14px;
}

th,td{
    border:1px solid #ddd;
    padding:10px;
    text-align:left;
    vertical-align:top;
}

th{
    background:#1b4d8b;
    color:white;
}

input{

padding:8px;

margin:5px;

}

form{

margin-bottom:20px;

}

th{

cursor:pointer;

user-select:none;

}

.cargando{
    display:none;
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:100%;
    background:rgba(255,255,255,.85);
    z-index:9999;
    align-items:center;
    justify-content:center;
    flex-direction:column;
    font-size:22px;
    font-weight:bold;
    color:#1b4d8b;
}

.spinner{
    width:55px;
    height:55px;
    border:6px solid #ddd;
    border-top:6px solid #1b4d8b;
    border-radius:50%;
    animation:girar 1s linear infinite;
    margin-bottom:20px;
}

@keyframes girar{
    from{ transform:rotate(0deg); }
    to{ transform:rotate(360deg); }
}

.paginacion{
    margin:25px 0;
    text-align:center;
}

.paginacion button{
    padding:10px 18px;
    margin:5px;
    cursor:pointer;
}

.ir-arriba{
    display:none;
    position:fixed;
    bottom:25px;
    right:25px;
    padding:12px 18px;
    background:#1b4d8b;
    color:white;
    border:none;
    border-radius:6px;
    cursor:pointer;
    z-index:1000;
}