* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    
    color: #E3E3E3; 
   
    background-color: #1B3C53; 
    padding: 2em 0;
    margin: 0;
}

html {
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* Scroll estilizado */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: #1B3C53;
}
::-webkit-scrollbar-thumb {
    
    background: #456882; 
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: #234C6A;
}

h1 {
    margin: 0.3rem;
    font-size: 3em;
    color: #E3E3E3;
}

h2, h3, h4 {
    margin: 0;
    margin-bottom: 0.5em;
    
    color: #E3E3E3; 
}

.title {
    text-align: center;
    width: 100%;
    height: 80px;
   
    background: #234C6A; 
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    gap: 20px;
}

.HeadLogo {
    height: 50px;
    width: auto;
    
    filter: drop-shadow(0 0 10px rgba(227, 227, 227, 0.3)); 
}

.timeline {
    margin: 150px auto 50px auto; 
    max-width: 1000px;
    position: relative;
    padding-bottom: 250px;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
  
    background-color: #456882; 
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
    z-index: 1;
}

.point {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    z-index: 5;
}

.point:nth-child(odd) {
    left: 0;
    text-align: right;
    padding-right: 30px;
}

.point:nth-child(even) {
    left: 50%;
    text-align: left;
    padding-left: 30px;
}

.point div {
    border: 2px solid #456882; 
    border-radius: 25px;
    padding: 1.5em;
    background: rgba(35, 76, 106, 0.4); 
    backdrop-filter: blur(5px);
    max-height: 400px;
    overflow-y: auto;
    scrollbar-width: thin;
    animation: appear linear forwards;
    animation-timeline: view();
    animation-range: entry 10% cover 50%;
}

.imgVersion {
    width: 80px; 
    height: auto;
    float: right; 
    margin-left: 15px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px rgba(227, 227, 227, 0.2)); 
    border-radius: 10px;
}

.point div::-webkit-scrollbar-thumb {
    background: #456882 !important;
}

.point p {
    line-height: 27px;
    color: #ccc; 
}

.point::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: #1B3C53;
    border: 3px solid #E3E3E3;
    top: 40px;
    border-radius: 50%;
    z-index: 20;
    box-shadow: 0 0 10px #E3E3E3;
    animation: popInPoint cubic-bezier(0.175,0.855,0.32,1.275) forwards;
    animation-timeline: view();
    animation-range: entry 10% entry 30%;
}

.point:nth-child(odd)::after { right: -12px; }
.point:nth-child(even)::after { left: -12px; }

.point::before {
    content: '';
    position: absolute;
    top: 48px;
    height: 3px;
    background-color: #456882;
    z-index: 1;
    animation: growLine linear forwards;
    animation-timeline: view();
    animation-range: entry 25% entry 40%;
}

.point:nth-child(odd)::before { right: 10px; }
.point:nth-child(even)::before { left: 10px; }

.btnChange {
    display: inline-block;
    padding: 12px 30px;
    color: #E3E3E3;
    text-decoration: none;
    border: 2px solid #456882;
    border-radius: 30px;
    font-weight: bold;
    transition: all 0.3s ease;
    background: #234C6A;
}

.btnChange:hover {
    background: #456882;
    color: #1B3C53;
    box-shadow: 0 0 20px rgba(69, 104, 130, 0.4);
    transform: translateY(-3px);
}

.linkTimeLine

{

    margin-top: 50px;

    text-align: center;

    color: #f3f4f5;

    padding-bottom: 100px;

}

/*Animación del contenido*/

@keyframes appear
{
    from
    {
        opacity: 0;
        transform: translateY(40px) scale(0.9);
        filter: blur(10px);
    }
    to
    {
        opacity: 1;
        transform: translateY(0)  scale(1);
        filter: blur(0);
    }
}


/*Animación para el punto (hace como un POP)*/

@keyframes popInPoint
{
0% {
        transform: scale(0);
        opacity: 0;
    }
    70% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/*Animación para que la línea se extienda*/

@keyframes growLine
{

    from
    {
        width: 0;
        opacity: 0;
    }

    to
    {
        width: 20px;
        opacity: 1;
    }

}


/*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*/


@media screen and (max-width: 768px) {
    

    .timeline
    {
        margin-top: 120px;
        padding-bottom: 200px;
    }

    .timeline::after {
        left: 31px !important;
        margin-left: 0 !important;
    }

    
    .point {
        width: 100% !important;
        left: 0 !important;
        padding-left: 80px !important; 
        padding-right: 20px !important;
        text-align: left !important;
        left: 0 !important; 
        margin-bottom: 50px;
    }

    .point div
    {
width: 100% !important;
margin-left: 0 !important;
    }

    .point::after {
        left: 21px !important;
        right: auto !important;
        top: 40px !important;
    }

    
    .point::before {
        left: 35px !important;
        right: auto !important;
        top: 50px !important;
        width: 45px !important; 
        z-index: 0;
    }
    
    
    .point:nth-child(odd), 
    .point:nth-child(even) {
        left: 0 !important;
    }
}