html{
    scroll-behavior: smooth;
}

/* Navegación */
/* NAV CONTENEDOR */
.bio-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #fff;
    border-bottom: 1px solid #e5e5e5;
    padding: 0.5rem 0;
}

/* LISTA */
.bio-nav-list {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 0;
    padding: 0;
    list-style: none;
    overflow-x: auto;
    scrollbar-width: none; /* Firefox */
}

.bio-nav-list::-webkit-scrollbar {
    display: none; /* Chrome */
}

/* LINKS */
.bio-nav-list a {
    font-size: 0.75rem;
    color: #6c757d;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    text-decoration: none;
    padding: 0.25rem 0;
    white-space: nowrap;
    position: relative;
}

/* HOVER */
.bio-nav-list a:hover {
    color: #212529;
}

/* ACTIVO */
.bio-nav-list a.active {
    color: #212529;
}

.bio-nav-list a.active::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 1px;
    background: #212529;
}

/* OFFSET PARA ANCLAS */
.timeline-block {
    scroll-margin-top: 80px;
}



.bio {
    padding: 80px 0;
}

.bio-timeline {
    max-width: 1000px;
    margin: 0 auto;
    font-family: Arial, Helvetica, sans-serif;
}

/* PERFIL */
.bio-header {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 80px;
}

.bio-photo img {
    width: 180px;
    height: 220px;
    object-fit: cover;
    filter: grayscale(1);
}

.bio-info h1 {
    font-size: 28px;
    letter-spacing: 0.12em;
    margin-bottom: 10px;
}

.bio-subtitle {
    font-size: 14px;
    letter-spacing: 0.2em;
    margin-bottom: 6px;
}

.bio-location {
    font-size: 13px;
    color: #555;
}

.bio-timeline p {
    line-height: 1.9;
}

.bio-timeline p br {
    content: "";
    display: block;
    margin-bottom: 8px;
}

/* BLOQUES */
.timeline-block {
    margin-bottom: 70px;
}

.timeline-block h2 {
    font-size: 16px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    border-bottom: 1px solid #000;
    padding-bottom: 8px;
    margin-bottom: 30px;
}

/* ITEMS */
.timeline-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 30px;
    margin-bottom: 24px;
}

.timeline-item .year {
    font-weight: bold;
    font-size: 13px;
}

.timeline-item p {
    font-size: 14px;
    line-height: 1.6;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .bio-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .timeline-item {
        grid-template-columns: 1fr;
    }

    .timeline-item .year {
        margin-bottom: 6px;
    }
}