body{
    margin:0;
    background:#070b14;
    color:white;
    font-family:Inter,Arial,sans-serif;
}

header{
    min-height:100vh;

    display:flex;
    flex-direction:column;
    justify-content:center;
    align-items:center;

    text-align:center;

    background:
        radial-gradient(circle at top,
        rgba(0,150,255,.25),
        transparent 40%),
        #070b14;
}

header h1{
    font-size:4rem;
    max-width:1000px;
    margin:0;
}

header p{
    font-size:1.3rem;
    color:#9ca3af;
    max-width:700px;
}

.botones{
    margin-top:30px;
}

.botones a{

    display:inline-block;

    margin:10px;

    padding:14px 26px;

    border-radius:12px;

    text-decoration:none;

    color:white;

    background:#111827;

    border:1px solid #374151;

    transition:.25s;
}

.botones a:hover{

    transform:translateY(-3px);

    border-color:#60a5fa;

    box-shadow:
        0 0 20px rgba(96,165,250,.3);
}

.stats{

    display:grid;

    grid-template-columns:
        repeat(auto-fit,minmax(220px,1fr));

    gap:20px;

    max-width:1200px;

    margin:auto;

    margin-top:-80px;
}

.card{

    background:#111827;

    border:1px solid #1f2937;

    padding:25px;

    border-radius:18px;

    text-align:center;
}

.card h3{
    margin:0;
    font-size:2rem;
}

.arquitectura{

    display:flex;

    flex-wrap:wrap;

    justify-content:center;

    gap:20px;

    margin-top:40px;
}

.arquitectura div{

    background:#111827;

    padding:20px 30px;

    border-radius:14px;

    border:1px solid #1f2937;
}

.timeline{

    display:flex;

    gap:20px;

    overflow-x:auto;

    padding-bottom:20px;
}

.sprint{

    min-width:250px;

    background:#111827;

    border:1px solid #1f2937;

    border-radius:18px;

    padding:25px;

    cursor:pointer;

    transition:.3s;
}

.sprint:hover{

    transform:translateY(-5px);

    border-color:#60a5fa;
}

#particles{

    position:fixed;

    inset:0;

    z-index:-1;

    background-image:
    radial-gradient(
        rgba(96,165,250,.2) 1px,
        transparent 1px
    );

    background-size:40px 40px;
}

#sprints{

    max-width:1200px;

    margin:auto;

    text-align:center;
}

.carousel{

    display:flex;

    align-items:center;

    justify-content:center;

    gap:20px;
}

.slide{

    width:100%;
}

.slide img{

    width:100%;

    max-height:600px;

    object-fit:cover;

    border-radius:20px;

    border:1px solid #1f2937;
}

.slide h3{

    margin-top:20px;

    font-size:2rem;
}

.slide p{

    color:#9ca3af;
}

.carousel button{

    background:#111827;

    border:none;

    color:white;

    font-size:2rem;

    width:60px;

    height:60px;

    border-radius:50%;

    cursor:pointer;

    transition:.3s;
}

.carousel button:hover{

    background:#1d4ed8;
}

#dots{

    margin-top:25px;

    display:flex;

    justify-content:center;

    gap:12px;
}

.dot{

    width:14px;

    height:14px;

    border-radius:50%;

    background:#374151;

    cursor:pointer;
}

.dot.active{

    background:#60a5fa;
}

.imagenes-arquitectura{
    display:flex;
    gap:40px;
    justify-content:center;
    align-items:flex-start;
    flex-wrap:wrap;
    margin-top:30px;
}

.imagen{
    width:30%;
    text-align:center;
}

.imagen img{
    width:100%;
    height:auto;
    border-radius:10px;
    box-shadow:0 4px 15px rgba(0,0,0,.2);
}

.imagen p{
    margin-top:10px;
    font-style:italic;
}

.gantt{
    text-align:center;
    margin:50px 0;
}

.gantt img{
    width:90%;
    max-width:1200px;
    height:auto;
    border-radius:10px;
    box-shadow:0 4px 15px rgba(0,0,0,.2);
}

.galeria{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:25px;
    margin-top:30px;
}

.galeria img{
    width:100%;
    height:220px;
    object-fit:cover;
    border-radius:10px;
    transition:.3s;
}

.galeria img:hover{
    transform:scale(1.03);
}

.sprints-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
    gap:30px;
    margin-top:40px;
}

.sprint-card{
    text-decoration:none;
    color:inherit;
    background:white;
    border-radius:12px;
    overflow:hidden;
    box-shadow:0 4px 15px rgba(0,0,0,.15);
    transition:.25s;
}

.sprint-card:hover{
    transform:translateY(-6px);
    box-shadow:0 8px 25px rgba(0,0,0,.25);
}

.sprint-card img{
    width:100%;
    height:220px;
    object-fit:cover;
}

.sprint-card h3{
    margin:18px 18px 8px;
}

.sprint-card p{
    margin:0 18px 20px;
    color:#666;
}

.recursos{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:30px;
    margin-top:35px;
}

.recurso{
    text-decoration:none;
    color:inherit;

    background:white;
    padding:35px;

    border-radius:15px;

    text-align:center;

    box-shadow:0 5px 20px rgba(0,0,0,.15);

    transition:.25s;
}

.recurso:hover{
    transform:translateY(-8px);
    box-shadow:0 10px 30px rgba(0,0,0,.25);
}

.icono{
    font-size:55px;
    margin-bottom:15px;
}

.recurso h3{
    margin-bottom:10px;
}

.recurso p{
    color:#666;
    line-height:1.5;
}

.icono{
    width:48px;
    height:48px;
    margin-bottom:18px;
}